Recombinant and Autologous Platelet-Derived Growth Factors for Wound Healing and Other Non-Orthopedic Conditions - CAM 20116

Description: 
The use of blood-derived growth factors, including recombinant platelet-derived growth factors (PDGFs) and platelet-rich plasma (PRP), has been suggested as a treatment for wounds or other miscellaneous non‒orthopedic conditions, including but not limited to, diabetic ulcers, pressure ulcers, venous stasis ulcers, and surgical and traumatic wounds.

Recombinant PDGFs
For individuals who have diabetic lower-extremity ulcers who receive recombinant PDGF, the evidence includes randomized controlled trials and systematic reviews. The relevant outcomes are symptoms, change in disease status, morbid events, quality of life (QOL), and treatment-related morbidity. Results have shown improved rates of healing with use of recombinant PDGF for diabetic neuropathic ulcers and pressure ulcers. The evidence is sufficient to determine that the technology results in a meaningful improvement in the net health outcome.

For individuals who have pressure ulcers who receive recombinant PDGF, the evidence includes randomized controlled trials and systematic reviews. The relevant outcomes are symptoms, change in disease status, morbid events, QOL, and treatment-related morbidity. Results have shown improved rates of healing with use of recombinant PDGF for pressure ulcers. The evidence is sufficient to determine that the technology results in a meaningful improvement in the net health outcome.

For individuals who have venous stasis leg ulcers or acute surgical or traumatic wounds who receive recombinant PDGF, the evidence includes small randomized controlled trials. The relevant outcomes are symptoms, change in disease status, morbid events, QOL, and treatment-related morbidity. The level of evidence does not permit conclusions whether recombinant PDGF is effective in treating other wound types, including chronic venous ulcers or acute traumatic wounds.The evidence is insufficient to determine the effects of the technology on health outcomes.

Platelet-Rich Plasma
For individuals who have chronic wounds or acute surgical or traumatic wounds who receive PRP, the evidence includes a number of small controlled trials. The relevant outcomes are symptoms, change in disease status, morbid events, QOL, and treatment-related morbidity. Current results of trials using PRPare mixed,and the studies are limited in both size and quality. The evidence is insufficient to determine the effects of the technology on health outcomes.

For individuals who have chronic wounds who receive PRP, the evidence includes a number of small controlled trials. The relevant outcomes are symptoms, change in disease status, morbid events, QOL, and treatment-related morbidity. Current results of trials using PRP are mixed and the studies are limited in both size and quality. The evidence is insufficient to determine the effects of the technology on health outcomes.

Background 
A variety of growth factors have been found to play a role in wound healing, including platelet-derived growth factor (PDGF), epidermal growth factor, fibroblast growth factors, transforming growth factors, and insulin-like growth factors. Autologous platelets are a rich source of PDGF, transforming growth factors (that function as a mitogen for fibroblasts, smooth muscle cells, and osteoblasts), and vascular endothelial growth factors. Recombinant PDGF also has been extensively investigated for clinical use in wound healing.

Autologous platelet concentrate suspended in plasma, also known as platelet-rich plasma (PRP), can be prepared from samples of centrifuged autologous blood. Exposure to a solution of thrombin and calcium chloride degranulates platelets, releasing various growth factors, and results in the polymerization of fibrin from fibrinogen, creating a platelet gel. The platelet gel can then be applied to wounds or may be used as an adjunct to surgery to promote hemostasis and accelerate healing. In the operating room setting, PRP has been investigated as an adjunct to a variety of periodontal, reconstructive, and orthopedic procedures. For example, bone morphogenetic proteins are a type of transforming growth factor, and thus PRP has been used in conjunction with bone-replacement grafting (using either autologous grafts or bovine-derived xenograft) in periodontal and maxillofacial surgeries.

PRP is distinguished from fibrin glues or sealants, which have been used for many years as a surgical adjunct to promote local hemostasis at incision sites. Fibrin glue is created from platelet-poor plasma and consists primarily of fibrinogen. Commercial fibrin glues are created from pooled homologous human donors; Tisseel® (Baxter International) and Hemaseel® (Haemacure Corp.) are examples of commercially available fibrin sealants. Autologous fibrin sealants can also be created from platelet-poor plasma. This evidence review does not address the use of fibrin sealants.

WOUND CLOSURE OUTCOMES
This review addresses the use of recombinant PDGF products and PRP for nonorthopedic indications, which include a number of wound closure-related indications.

For the purposes of this review, the primary end points of interest for studies of wound closure are as follows, consistent with guidance from the U.S. Food and Drug Administration for industry in developing products for treatment of chronic cutaneous ulcer and burn wounds1:

  1. Incidence of complete wound closure.
  2. Time to complete wound closure (reflecting accelerated wound closure).
  3. Incidence of complete wound closure following surgical wound closure.
  4. Pain control.

Regulatory Status 
Becaplermin
In 1997, becaplermin gel (Regranex®; Smith & Nephew), a recombinant PDGF product, was approved by the FDA for the following labeled indication:

“Regranex Gel is indicated for the treatment of lower extremity diabetic neuropathic ulcers that extend into the subcutaneous tissue or beyond and have an adequate blood supply. When used as an adjunct to, and not a substitute for, good ulcer care practices including initial sharp debridement, pressure relief and infection control, Regranex Gel increases the complete healing of diabetic ulcers.

The efficacy of Regranex Gel for the treatment of diabetic neuropathic ulcers that do not extend through the dermis into subcutaneous tissue or ischemic diabetic ulcers … has not been evaluated…Regranex is not intended to be used in wounds that close by primary intention.”

In 2008, the manufacturer added the following black box warning to the labeling for Regranex®: “An increased rate of mortality secondary to malignancy was observed in patients treated with 3 or more tubes of Regranex Gel in a postmarketing retrospective cohort study. Regranex Gel should only be used when the benefits can be expected to outweigh the risks. Regranex Gel should be used with caution in patients with known malignancy.”

In 2018, the “Boxed Warning” and “Warnings and Precautions” were changed to remove “increased rate of cancer mortality” and “cancer mortality,” respectively.

Platelet-Rich Plasma
The FDA regulates human cells and tissues intended for implantation, transplantation, or infusion through the Center for Biologics Evaluation and Research, under Code of Federal Regulation, Title 21, parts 1270 and 1271. Blood products such as PRP are included in these regulations.

Under these regulations, certain products including blood products such as PRP are exempt and therefore, do not follow the traditional FDA regulatory pathway. To date, the FDA has not attempted to regulate activated PRP.2

Numerous PRP preparation systems have been cleared for marketing by the FDA through the 510(k) process. These devices are intended to concentrate patient plasma at the point of care during bone grafting procedures. The use of different devices and procedures can lead to variable concentrations of active platelets and associated proteins, increasing variability between studies of clinical efficacy.

Related Policies
10116 Negative Pressure Wound Therapy in the Outpatient Setting
20198 Orthopedic Applications of Platelet-Rich Plasma
20157 Electrostimulation and Electromagnetic Therapy for Treating Wounds
20179 Noncontact Ultrasound Treatment for Wounds
701113 Bioengineered Skin and Soft Tissue Substitutes 

Policy:
Recombinant platelet-derived growth factor (i.e., becaplermin) may be considered MEDICALLY NECESSARY when used as an adjunct to standard wound management for the following indications (For further information on patient selection criteria, see Policy Guidelines below):

  • Neuropathic diabetic ulcers extending into the subcutaneous tissue
  • Pressure ulcers extending into the subcutaneous tissue

Other applications of becaplermin are investigational and/or unproven and therefore considered NOT MEDICALLY NECESSARY, including, but not limited to, ischemic ulcers, ulcers related to venous stasis, and ulcers not extending through the dermis into the subcutaneous tissue.

Use of autologous blood-derived preparations (i.e., platelet-rich plasma) is investigational and/or unproven and therefore considered NOT MEDICALLY NECESSARY for the treatment of acute or chronic wounds, including surgical wounds and non healing ulcers.

Policy Guidelines:
Becaplermin

Appropriate candidates for becaplermin gel for treatment of neuropathic ulcers should meet ALL of the following criteria:

  1. Adequate tissue oxygenation, as measured by a transcutaneous partial pressure of oxygen of 30 mm Hg or greater on the foot dorsum or at the margin of the ulcer
  2. Full-thickness ulcer (i.e., stage III or IV), extending through dermis into subcutaneous tissues
  3. Participation in a wound management program, which includes sharp débridement, pressure relief (i.e., non-weight bearing), and infection control.

Appropriate candidates for becaplermin gel for the treatment of pressure ulcers should meet ALL of the following criteria:

  1. Full-thickness ulcer (i.e., stage III or IV), extending through dermis into subcutaneous tissues
  2. Ulcer in an anatomic location that can be offloaded for the duration of treatment
  3. Albumin concentration > 2.5 dL
  4. Total lymphocyte count > 1000/μL
  5. Normal values of vitamins A and C.

Patients are typically treated once-daily for up to 20 weeks or until completely healed. Application of the gel may be performed by the patient in the home. 

Becaplermin is available in 2-, 7.5-, and 15-g tubes and is applied in a thin continuous layer, about 1/16 of an inch thick (i.e., 1.6 mm or the thickness of a dime). The amount of the gel used will depend on the size of the ulcer, measured in square centimeters. However, an average-sized ulcer, measuring 3 cm2, treated for an average length of time of 85 days, will require a little more than one 15-g tube. If the ulcer is treated for the maximum length of time of 140 days, 1.75 of the 15-g tubes would be required. 

Platelet-Rich Plasma (IE, Autologous Blood-Derived Preparations) 
Please see the Codes table for details. 

Benefit Application
BlueCard/National Account Issues
Use for becaplermin gel is potentially high, particularly if used for off-label indications or if used outside the setting of adequate and diligent standard wound management. Plans may want to consider active implementation and management of this policy to ensure that becaplermin is used as part of a program of wound management, as described in the Policy Guidelines.

Rationale
This evidence review was created in March 1996 and has been updated regularly with searches of the PubMed database. The most recent literature update was performed through December 13, 2022.

The platelet-rich plasma (PRP) portion of this evidence review on the platelet-derived wound healing formulae was originally based on a 1992 TEC Assessment that primarily focused on the Procuren process.This preparation method is no longer commercially available. Currently, a large number of devices are available for the preparation of PRP or PRP gel. The amount and mixture of growth factors produced by different cell-separating systems vary, and it is unknown whether platelet activation before an injection is necessary.4,5,6,7,8

Evidence reviews assess the clinical evidence to determine whether the use of technology improves the net health outcome. Broadly defined, health outcomes are the length of life, quality of life, and ability to function¾including benefits and harms. Every clinical condition has specific outcomes that are important to patients and managing the course of that condition. Validated outcome measures are necessary to ascertain whether a condition improves or worsens; and whether the magnitude of that change is clinically significant. The net health outcome is a balance of benefits and harms.

To assess whether the evidence is sufficient to draw conclusions about the net health outcome of technology, 2 domains are examined: the relevance, and quality and credibility. To be relevant, studies must represent one or more intended clinical use of the technology in the intended population and compare an effective and appropriate alternative at a comparable intensity. For some conditions, the alternative will be supportive care or surveillance. The quality and credibility of the evidence depend on study design and conduct, minimizing bias and confounding that can generate incorrect findings. The randomized controlled trial (RCT) is preferred to assess efficacy; however, in some circumstances, nonrandomized studies may be adequate. RCTs are rarely large enough or long enough to capture less common adverse events and long-term effects. Other types of studies can be used for these purposes and to assess generalizability to broader clinical populations and settings of clinical practice.

Promotion of greater diversity and inclusion in clinical research of historically marginalized groups (e.g., People of Color [African-American, Asian, Black, Latino and Native American]; LGBTQIA (Lesbian, Gay, Bisexual, Transgender, Queer, Intersex, Asexual); Women; and People with Disabilities [Physical and Invisible]) allows policy populations to be more reflective of and findings more applicable to our diverse members. While we also strive to use inclusive language related to these groups in our policies, use of gender-specific nouns (e.g., women, men, sisters, etc.) will continue when reflective of language used in publications describing study populations.

Recombinant Platelet-Derived Growth Factor for Diabetic Lower-Extremity Ulcers
Clinical Context and Therapy Purpose

The purpose of recombinant platelet-derived growth factor (PDGF) is to provide a treatment option that is an alternative to or an improvement on existing therapies in patients with diabetic lower-extremity ulcers.

The following PICO was used to select literature to inform this review.

Populations
The relevant population of interest is individuals with diabetic lower-extremity ulcers.

Interventions
The therapy being considered is recombinant PDGF.

Comparators
Comparators of interest include standard wound care.

Outcomes
The general outcomes of interest are symptoms, change in disease status, morbid events, quality of life (QOL), and treatment-related morbidity.

Follow-up at 20 weeks is of interest for recombinant PDGF to monitor relevant outcomes.

Study Selection Criteria
Methodologically credible studies were selected using the following principles:

  • To assess efficacy outcomes, comparative controlled prospective trials were sought, with a preference for RCTs.
  • In the absence of such trials, comparative observational studies were sought, with a preference for prospective studies.
  • To assess long-term outcomes and adverse events, single-arm studies that capture longer periods of follow-up and/or larger populations were sought.
  • Studies with duplicative or overlapping populations were excluded.

Review of Evidence
The portion of this evidence review on the use of recombinant PDGF (becaplermin gel) was informed by a 1999 TEC Assessment, which found that the evidence supported the conclusion that becaplermin gel, in conjunction with good wound care, improves the health outcomes of patients with chronic neuropathic diabetic ulcers that met the patient selection criteria defined therein.9 Becaplermin gel plus good wound care resulted in a 43% complete wound closure rate, compared with 28% for patients treated with good wound care alone. Becaplermin gel also appeared to reduce the average time to complete wound closure.

Systematic Reviews
A 2014 systematic review identified 6 RCTs (N = 992 patients) that compared recombinant PDGFs with placebo or standard care.10 There was a combined odds ratio of 1.53 (95% confidence interval [CI], 1.14 to 2.04; p = .004) favoring recombinant PDGF for complete healing rate.

Sridharan et al. (2018) conducted a systematic review and meta-analysis of RCTs on topical growth factors compared with standard of care in patients with diabetic foot ulcers (DFUs). The primary outcome of concern was complete healing and the second outcome of concern was the existence of adverse events. Rankogram was generated based on the surface under the cumulative ranking curve. In total, 26 studies with 2088 participants and 1018 adverse events were included. The pooled odds ratio estimates for recombinant human epidermal growth factor (rhEGF), autologous-PRP, and recombinant human platelet-derived growth factor were 5.7 [95% CI, 3. 34 to 10.37], 2.65 [95% CI, 1.65 to 4.54], and 1.97 [95% CI, 1.54 to 2.55] respectively. The surface under the cumulative ranking curve for rhEGF was 0.95; sensitivity analysis did not reveal significant changes from pooled estimates and rankogram. With regard to adverse events, no differences were observed for the overall risk of adverse events between the growth factors; however, the growth factors were observed to lower the risk of lower limb amputations compared to standard of care. The results lead the authors to conclude that rhEGF, recombinant human platelet-derived growth factor, and autologous PRP significantly improved the healing rate when used as adjuvants to the standard of care. Compared to other growth factors, rhEGF performed better. The limitations of this study include the following: the strength of most of the outcomes assessed was low, and the findings may not be applicable for DFU with infection or osteomyelitis.11

Table 1. Systematic Reviews of Trials Assessing Recombinant Platelet-Derived Growth Factor for Diabetic Lower-Extremity Ulcers

Study (Year) Literature Search Studies Participants N Design Results
Sridharan et al. (2018) Dec. 2016 RCTs Patients with diabetic lower-extremity ulcers treated with platelet-derived growth factor 2088 RCTs Pooled analysis estimated rhEGF, PRP, rhPDGF

PRP: autologous platelet-rich plasma; RCT: Randomized Controlled Trial; rhEGF: recombinant epidermal growth factor; rhPDGF: recombinant human platelet-derived growth factor

Retrospective Studies
A 2005 industry-sponsored study assessed the effectiveness of recombinant PDGF for diabetic neuropathic foot ulcers in actual clinical practice.12 Among a cohort of 24,898 patients in wound care centers, those subjects whose wounds did not heal over an 8-week observation period were eligible for the study and were retrospectively assessed over 20 weeks or until they healed. Any subject with an open wound who was lost to follow-up was considered unhealed. Of the nearly 25000 patients treated for foot ulcers, 2394 (9.6%) received recombinant PDGF. A propensity score method with covariates to statistically model treatment selection was used to adjust for selection bias; results were stratified by 5 propensity score groups. Overall, the rate of healing was 26.5% in the control group and 33.5% in patients treated with recombinant PDGF. The relative risk (RR), controlling for the propensity to receive PDGF, was 1.32 (95% CI, 1.22 to 1.38) for healing and 0.65 (95% CI, 0.54 to 0.78) for amputation (6.4% in controls vs. 4.9% in the PDGF group). The analysis also indicated those who received PDGF were more likely to be younger, male, and have older wounds-factors not known to affect wound healing. These results support the clinical utility of recombinant PDGF for treatment of diabetic neuropathic foot ulcers in actual clinical practice.

Section Summary: Recombinant Platelet-Derived Growth Factor for Diabetic Lower-Extremity Ulcers
Published evidence includes an industry-sponsored study and 2 systematic reviews that showed an improvement in treatment over control for tested outcome measures.

Recombinant Platelet-Derived Growth Factor for Pressure Ulcers
Clinical Context and Therapy Purpose

The purpose of recombinant PDGF is to provide a treatment option that is an alternative to or an improvement on existing therapies in patients with pressure ulcers.

The following PICO was used to select literature to inform this review.

Populations
The relevant population of interest is individuals with pressure ulcers.

Interventions
The therapy being considered is recombinant PDGF.

Comparators
Comparators of interest include standard wound care.

Outcomes
The general outcomes of interest are symptoms, change in disease status, morbid events, QOL, and treatment-related morbidity.

Though not completely standardized, follow-up for pressure ulcer symptoms would typically occur in the months after starting treatment.

Study Selection Criteria
Methodologically credible studies were selected using the following principles:

  • To assess efficacy outcomes, comparative controlled prospective trials were sought, with a preference for RCTs.
  • In the absence of such trials, comparative observational studies were sought, with a preference for prospective studies.
  • To assess long-term outcomes and adverse events, single-arm studies that capture longer periods of follow-up and/or larger populations were sought.
  • Studies with duplicative or overlapping populations were excluded.

Review of Evidence
Randomized Controlled Trials

Rees et al. (1999) conducted an RCT focusing on the use of becaplermin gel as a treatment for pressure ulcers.13 Patient selection criteria included full-thickness ulcers and an anatomic location where pressure could be offloaded during treatment. This latter patient selection criterion might have limited the number of patients with pressure ulcers who would have been considered candidates for becaplermin therapy. Patients were randomized to 1 of 4 parallel treatment groups and received either a placebo or 1 of 3 dosages of becaplermin. All patients received a standardized program of good wound care. In the 2 groups treated with the once-daily dosage (becaplermin 0.01% or 0.03%), the incidence of complete healing was significantly improved compared with the placebo group. There was no difference in outcome between the 0.01% and 0.03% groups, suggesting there is no clinical benefit in increasing the potency above 0.01%. A third group received becaplermin 0.01% twice daily. That group did not report improved outcomes compared with placebo, a finding that is unexplained.

Section Summary: Recombinant Platelet-Derived Growth Factor for Pressure Ulcers
Published evidence includes a multicenter, double-blind RCT that showed an improvement in treatment over control for tested outcome measures.

Recombinant Platelet-Derived Growth Factor for Venous Stasis Leg Ulcers
Clinical Context and Therapy Purpose

The purpose of recombinant PDGF is to provide a treatment option that is an alternative to or an improvement on existing therapies in patients with venous stasis leg ulcers.

The following PICO was used to select literature to inform this review.

Populations
The relevant population of interest is individuals with venous stasis leg ulcers.

Interventions
The therapy being considered is recombinant PDGF.

Comparators
Comparators of interest include standard wound care.

Outcomes
The general outcomes of interest are symptoms, change in disease status, morbid events, QOL, and treatment-related morbidity.

Though not completely standardized, follow-up for venous stasis leg ulcer symptoms would typically occur in the months after starting treatment.

Study Selection Criteria
Methodologically credible studies were selected using the following principles:

  • To assess efficacy outcomes, comparative controlled prospective trials were sought, with a preference for RCTs.
  • In the absence of such trials, comparative observational studies were sought, with a preference for prospective studies.
  • To assess long-term outcomes and adverse events, single-arm studies that capture longer periods of follow-up and/or larger populations were sought.
  • Studies with duplicative or overlapping populations were excluded.

Review of Evidence
Randomized Controlled Trials

Senet et al. (2011) in France, published a multicenter, double-blind RCT of becaplermin gel for venous leg ulcers.14 There was no significant difference between the becaplermin (n = 28) and control hydrogel (n = 31) groups for any of the outcome measures, which included complete closure rates after 8 and 12 weeks, changed ulcer area, and changed ulcer-related pain and QOL.

Section Summary: Recombinant Platelet-Derived Growth Factor for Venous Stasis Leg Ulcers
Published evidence includes a multicenter, double-blind RCT that showed no difference between treatment and control for tested outcome measures.

Recombinant Platelet-Derived Growth Factor for Acute Surgical or Traumatic Wounds
Clinical Context and Therapy Purpose

The purpose of recombinant PDGF is to provide a treatment option that is an alternative to or an improvement on existing therapies in patients with acute surgical or traumatic wounds.

The following PICO was used to select literature to inform this review.

Populations
The relevant population of interest is individuals with acute surgical or traumatic wounds.

Interventions
The therapy being considered is recombinant PDGFs.

Comparators
Comparators of interest include standard wound care.

Outcomes
The general outcomes of interest are symptoms, change in disease status, morbid events, QOL, and treatment-related morbidity.

Though not completely standardized, follow-up for acute surgical or traumatic wound symptoms would typically occur in the months after starting treatment.

Study Selection Criteria
Methodologically credible studies were selected using the following principles:

  • To assess efficacy outcomes, comparative controlled prospective trials were sought, with a preference for RCTs.
  • In the absence of such trials, comparative observational studies were sought, with a preference for prospective studies.
  • To assess long-term outcomes and adverse events, single-arm studies that capture longer periods of follow-up and/or larger populations were sought.
  • Studies with duplicative or overlapping populations were excluded.

Review of Evidence
Topical recombinant PDGF has also been investigated for repair of work-related fingertip injuries. A 2005 prospective controlled trial alternately assigned 50 patients (fingertip wound area ≥ 1.5 cm, with or without phalangeal exposure) to daily treatment with PDGF (n = 25) or surgical reconstruction (n = 25).15 Statistical analysis showed that baseline characteristics of the 2 groups were similar for patient age, wound area (2.2 to 2.4 cm), and distribution of fingertip injuries across the digits. Assessment by an independent physician showed that, compared with the surgical intervention, treatment with recombinant PDGF resulted in faster return to work (10 days vs. 38 days) and wound healing (25 days vs. 35 days), less functional impairment (10% vs. 22%), and less need for physical therapy (20% vs. 56%), respectively. Fingertips treated with PDGF were also reported to have satisfactory aesthetic results, while surgically treated fingertips were shorter and often unsightly. These results, if confirmed in additional RCTs, could lead to improvement in health outcomes for patients with fingertip injuries. However, this trial was limited by its small sample size, method of randomization, and potential for investigator bias (although examining physicians were blinded to treatment allocation, actual treatment might have been obvious).

Adverse Events
Growth factors cause cells to divide more rapidly. For this reason, the manufacturer of Regranex continued to monitor studies that started before its approval (in December 1997) for any evidence of adverse events, such as increased numbers of cancers. In a long-term safety study completed in 2001, more deaths from cancer occurred among patients who used Regranex than in those who did not. A subsequent study was performed using a health insurance database that covered the period from January 1998 through June 2003. This trial identified 2 groups of patients with similar diagnoses, drug use, and use of health services: 1 group used Regranex, and the other group did not. Results showed there were more deaths from cancer among patients who were given 3 or more prescriptions for Regranex than deaths for those not treated with Regranex. No single type of cancer was identified; deaths from all types of cancer were observed. In 2008, the U.S. Food and Drug Administration concluded that the increased risk of death from cancer in patients who used 3 or more tubes of Regranex was 5 times higher compared with those who did not use Regranex, prompting the manufacturer to add a black box warning to the labeling for Regranex. The risk of new cancers among Regranex users was not increased compared with nonusers, although the duration of follow-up of patients in this study was not long enough to detect new cancers.

Section Summary: Recombinant Platelet-Derived Growth Factor for Acute Surgical or Traumatic Wounds
Published evidence includes nonrandomized controlled trials reporting satisfactory aesthetic results. Larger RCTs are required to confirm and expound on these results.

Platelet-Rich Plasma for Chronic Wounds
Clinical Context and Therapy Purpose

The purpose of PRP is to provide a treatment option that is an alternative to or an improvement on existing therapies in patients with chronic wounds

The following PICO was used to select literature to inform this review.

Populations
The relevant population of interest is individuals with chronic wounds.

Interventions
The therapy being considered is PRP.

Comparators
Comparators of interest include standard wound care.

Outcomes
The general outcomes of interest are symptoms, change in disease status, morbid events, QOL, and treatment-related morbidity.

Though not completely standardized, follow-up for chronic wound symptoms would typically occur in the months after starting treatment.

Study Selection Criteria
Methodologically credible studies were selected using the following principles:

  • To assess efficacy outcomes, comparative controlled prospective trials were sought, with a preference for RCTs.
  • In the absence of such trials, comparative observational studies were sought, with a preference for prospective studies.
  • To assess long-term outcomes and adverse events, single-arm studies that capture longer periods of follow-up and/or larger populations were sought.
  • Studies with duplicative or overlapping populations were excluded.

Review of Evidence
Diabetic Foot Ulcers
Systematic Reviews

A number of systematic reviews of the evidence on PRP have been published.16,17,18,19,20,21[Qu W, Wang Z, Hunt C, Morrow AS, Urtecho M, Amin M..... Accessed December 13, 2022. ] These reviews are heterogenous in whether they pooled data from studies reflecting a variety of wound types16,17,22,18,23 or focused on specific wound types, primarily diabetic foot ulcers.19,20,21,24 Results from the reviews that pooled data from a variety of wound types16,17,22,18,23 are not discussed herein as their design precludes drawing conclusions about the applicability of the review findings to specific wound types. As the majority of the RCTs included in the systematic reviews were published post-2014, herein are summarized those systematic reviews that focused on specific wound types with search dates that extend to at least 2015.20,21,24

Three recent systematic reviews have evaluated studies of PRP for individuals with diabetic foot ulcers.20,21,24 Table 2 provides a crosswalk of the studies included in the systematic reviews.

Table 2. Comparison of Trials of Platelet-Rich Plasma in Individuals with Diabetic Foot Ulcers Included in Systematic Reviews

Primary Study (Year) Del Pino-Sedeno 201820 Li 201921 Qu 202124
Ahmed 201725
Chen 2008a26    
Driver 200627
Elsaid 202028    
Friese 2007 (conference proceeding)29    
Game 201830    
Gude 201931    
Kakagia 200732
Karimi 201633  
Li 201534
Liu 2016a35    
Ma 2014a36    
Milek 201737    
Qi 2014a38    
Saad Setta 201139
Saldalamacchia 200440
Serra 201341  
Singh 201842    
Steed 199243    
Steed 199644    
Xie 202045    
Yang 201746    
Zhang 2016a47    
Zhou 2015a48    
Zhu 2012a49  

   
a In Chinese
Tables 3 and 4 summarize the characteristics and results of the 3 systematic reviews that have evaluated studies of PRP for individuals with diabetic foot ulcers.20,21,24

A meta-analysis by del Pino-Sedeno et al. (2018) assessed 8 RCTs and 2 longitudinal-observational studies (N = 525) to determine the safety and efficacy of PRP to treat diabetic foot ulcers.20 Results indicated PRP significantly increased chronic wound healing compared with standard treatment (risk ratio [RR] = 1.41; 95% CI: 1.08 to 1.84; p = .01; I2 = 51%). Subgroup analysis showed that PRP source affected the proportion of completely healed diabetic foot ulcers (autologous RR = 1.21; 95% CI: 1.04 to 1.42; p = .02; allogenic RR = 3.20; 95% CI: 1.14 to 9.03; p = .03). PRP preparation method also influenced healing (homemade RR = 1.22; 95% CI: 1.04 to 1.44; p = .02; commercial protocol RR = 1.13; 95% CI: 0.58 to 2.20; p = .71; blood bank RR = 3.20; 95% CI: 1.14 to 9.03; p = .03). The 2 trials that reported mean time for complete wound healing showed that PRP resulted in quicker healing (mean difference = -11.18 days; 95% CI: -20.69 to -1.68; p = .02; I2 = 53%). Overall, the studies reported no significant differences in rates of wound complications or dermatitis, and rates of recurrences were similar between PRP and standard treatment. The authors noted, however, that results of their analysis should be interpreted cautiously because no statistical differences were found in the epithelialized area before and after wound treatment (mean difference = 0.70 cm2; 95% CI: -0.96 to 2.35; p = .41; I2 = 70%). This study was limited by the low number and quality of studies available on PRP for diabetic foot ulcers.

In their meta-analysis, Li et al. (2019) assessed the efficacy and safety of autologous platelet-rich gel for topical treatment of diabetic chronic cutaneous ulcers21. Their analysis included 15 RCTs with 829 patients. Results indicated that autologous platelet-rich gel had a significant positive effect on healing rate, shorter healing time, and lower risk of infection than conventional treatment. Autologous platelet-rich gel also had a significantly lower incidence of infection when compared with conventional treatment (odds ratio [OR] = 0.34; 95% CI: 0.15 to 0.77; p = .009). This meta-analysis was limited by a high or unclear risk of bias among the trials, which may indicate the trials were underpowered. Also, some studies had small sample sizes and limited outcome information. Further, 7 of the included trials are available only in the Chinese language. Finally, most of the trials were 8 to 12 weeks long and others only 2 to 5 weeks, making it difficult to analyze the relationship of time of observation to ulcer healing.

The Agency for Healthcare Research and Quality (AHRQ) (2020) published a Technology Assessment on Platelet-Rich Plasma for Wound Care in the Medicare Population. This Technology Assessment was requested by the Centers for Medicare & Medicaid Services to inform reconsideration of a National Coverage Decision on autologous blood-derived products for chronic non-healing wounds.50 This Technology Assessment evaluates evidence in lower extremity diabetic ulcers, lower extremity venous ulcers and pressure ulcers. Separate meta-analyses were conducted for each wound type. Here the focus is on findings for lower extremity diabetic ulcers and those for the other populations are discussed below. Risk of bias of individual studies was assessed using the Cochrane Collaboration's Risk of Bias 2 tool and rated high in 8 RCTs (57.14%), moderate in 6 RCTs (42.86%) and high in the 1 observational study (100%). Strength of the body of evidence was rated based on the Evidence-based Practice Center methods guide. The findings of this Technology Assessment indicated that there is moderate-strength evidence that PRP modestly increases complete wound closure (see meta-analysis results in Table 4 below) and low-strength evidence that PRP may shorten time to wound closure (meta-analysis not feasible). However, due to risk of bias and severe imprecision, evidence is insufficient to draw conclusions about other important outcomes, including wound infection, amputation, pain reduction, and wound recurrence. Important limitations of the literature were described as "inadequate description of offloading and wound care procedures, wound characteristics, PRP formulation techniques, concentration and volume; inadequate length of follow-up, and lack of stratification by comorbidities and other patient characteristics, such as diabetes control, vascular perfusion, and under representation of older adults."

Table 3. Characteristics of Key Systematic Reviews with Meta-Analyses in Individuals with Diabetic Foot Ulcers

Study Dates Trials Participants N (Range) Design Duration
del Pino-Sedeno (2018)20 Inception – 2017 10 Patients with diabetic foot ulcers N = 525 (13 – 117) RCTs, longitudinal observational studies 3 wk to 128.57 wk
Li (2019)21 2004 – 2017 15 Patients with diabetic chronic cutaneous wounds/ulcers that do not show signs of healing in 4 weeks N = 829
(14 – 117)
RCTs NR
Qu (2021)24 Inception – 2020 14 Adults with lower extremity diabetic ulcers, lower extremity venous ulcers, or pressure ulcers in any location, or a mix of these 3 etiologies N = 1,096 (range NR) RCTs Median = 6 wk (range, none to 11 months)

NR: not reported; RCT: randomized controlled trial; wk: week(s); y: year(s).

Table 4. Results of Key Systematic Reviews with Meta-Analyses in Individuals with Diabetic Foot Ulcers

Study Healing Rate Healing Time Complete Wound Healing Risk of Infection Wound complications Pain Reduction Recurrence
del Pino-Sedeno (2018)20              
RR     1.41   0.57   2.76
MD   -11.18          
95% CI   -20.69 to -1.68 1.08 to 1.84   0.25 to 1.28   0.23 to 33.36
P-value   .02 .01   .17   .43
Li (2019)21              
RR 1.39            
MD   -9.18          
OR       0.34      
95% CI 1.29 to 1.50 -11.32 to -7.05   0.15 to 0.77      
P-value < .001 < .001   .009      
Qu (2021)24              
RR     1.20 0.77     2.09
WMD           -1.10a  
95% CI     1.09 to 1.32 0.54 to 1.11   -1.81 to -0.39 0.31 to 13.93
P-value            

                 
a Visual Analog Scale
CI: confidence interval; MD: mean difference; OR: odds ratio; RR: risk ratio; WMD: weighted mean difference; Z: indicates overall effect.

Randomized Controlled Trials
Key characteristics and results of several RCTs of diabetic foot ulcers published subsequent to the AHRQ review (2020) are summarized in Tables 5 and 6 below.

One RCT of PRP dressing with total-contact casting compared to standard saline dressing for diabetic foot ulcers (Gupta et al. [2021])51 did not find significant differences in rates of ulcer area reduction or absolute ulcer area reduction between groups over the 6-week study period. Another RCT of PRP versus standard wound care found accelerated rates of ulcer area reduction and decreased incidence of wound infections with PRP treatment; however, the difference in the percentage of healed surface between groups lost statistical significance at 6, 7, or 8 weeks of follow-up and it is unclear whether complete wound healing was achieved in either group.52

Table 5. Summary of Key RCT Characteristics

Study Countries Sites Dates Participants Intervention Control
Gupta et al. (2021)51 India 1 2016 to 2018 Individuals with diabetes mellitus with noninfected diabetic foot ulcers with total ulcer area of 20 cm2 or less on the plantar surface Autologous intralesional PRP therapy with total contact casting (n = 30) Saline dressing (n = 30)
Hossam et al. (2022)52 Egypt 1 2018 Individuals with type 1 or 2 diabetes with non-ischemic revascularized chronic diabetic foot ulcers of more than 6 months duration with no clinical signs of infection, Wagner grade 1 or 2, and ASA physical status class 2 Autologous intralesional CaCl2-activated PRP therapy (injection and/or gel) with saline gauze (n = 40) Standard wound care with moist dressing with or without collagenase ointment (n = 40)

ASA: American Society of Anesthesiologists; PRP: platelet-rich plasma; RCT: randomized controlled trial. 

Table 6. Summary of Key RCT Results

tudy Complete Healing Percentage of Healed Surface Areaa Complete Healing Time Pain Quality of Life Infection Recurrence
Gupta et al. (2021)51 NR 6 weeks:
85.98% vs 81.72%; p = NR
NR NR NR NR NR
Hossam et al. (2022)52 95% vs 77.8%b; p < .001 1 week:
23.1% vs 0%;
p = .002
5 weeks:
89.2% vs 60.1%; p < .001
8 weeks:
96.7% vs 95.5%; p = .529
NR NR NR PRP: 4 (10%)
Control: 18 (45%) with 4 resulting in amputation
p < .001
NR


NR: not reported; PRP: platelet-rich plasma; RCT: randomized controlled trial. 
a Percentage of healed surface area in treatment vs. control groups.
b Proportion of patients with complete healing in treatment (n = 38) vs. control groups (n = 28) at 6 and 9 weeks, respectively.
Study relevance, design, and conduct limitations are summarized below in Tables 9 and 10.

Other Chronic Wound Types
The AHRQ (2020) Technology Assessment on Platelet-Rich Plasma for Wound Care in the Medicare Population described above also evaluated evidence on use of PRP in individuals with lower extremity venous ulcers and individuals with pressure ulcers.53

For individuals with lower extremity venous ulcers, the evidence included 8 RCTs and 3 observational studies (total N = 615). The majority compared PRP to management without PRP. Risk of bias was described as moderate due to randomization and outcome measurement limitations. There were no significant differences between PRP versus management without PRP in complete wound closure (RR = 1.49; 95% CI: 0.72 to 3.06; 5 studies, N = 250; I2 = 29.4%), wound recurrence (RR = 0.38; 95% CI: 0.09 to 1.57), wound infection (RR = 0.79; 95% CI: 0.22 to 2.81), or quality of life as measured by the Chronic Lower Limb Venous Insufficiency Questionnaire (weighted mean difference [WMD] = 10.99; 95%CI: -50.5 to 72.5). For the outcomes time to complete wound closure and pain, meta-analysis of 2 studies was not possible due to insufficient data and findings were mixed between studies on both outcomes. The strength of evidence was rated as 'insufficient' to draw conclusions on all outcomes. Oliveira et al. (2020) also conducted a meta-analysis of cost and effectiveness of studies of PRP for venous ulcers.54 Based on fewer studies identified from searches only through July 2018, although their findings indicated greater reductions in wound area for PRP, findings were consistent with the ARHQ review in finding no significant difference in complete wound closure (RR = 2.54; 95% CI, 0.42 to 15.30; 4 studies, N = 156; I2 = 69%).

For individuals with pressure ulcers, the AHRQ Technology Assessment (2020)24 included 1 RCT and 1 comparative observational study (total N not reported). The comparator was serum physiological dressing in the RCT and saline dressing in the observational study. Risk of bias of the primary studies was described as moderate, due to limitations in the randomization process and outcome measurement, deviations from intended interventions, and selective outcome reporting. Although both studies found that PRP significantly reduced wound size (strength of evidence=insufficient), neither study evaluated other important outcomes, such as complete wound closure.

Randomized Controlled Trials
One RCT of PRP for chronic wounds (Saha et al. [2020])55 was identified as published subsequent to the AHRQ review (2020).24 Key characteristics and results of selected RCTs are reported in Tables 7 and 8 below.

Analyses included 91.5% (n = 108) of randomized individuals. Participants were mostly males in their late 40s with trophic ulcer duration of 13.4 months. Reduction in ulcer surface area, the primary outcome, was significantly greater for the PRP group from the first week (38.96% vs 12.46%; p < .001) through the fifth (and last) week of follow-up (91.10% vs 79.77%; p < .001). However, healing time and recurrence were not reported and there was no significant difference in complete healing rate.

Table 7. Summary of Key RCT Characteristics

Study Countries Sites Dates Participants Intervention Control
Saha et al. (2020)55 Iran 1 2016 to 2018 Individuals with clinically diagnosed trophic ulcers due to leprosy Autologous PRP therapy with total contact casting (n = 59) Only total contact casting (n = 59)

PRP: platelet-rich plasma; RCT: randomized controlled trial. 

Table 8. Summary of Key RCT Results

Study Complete Healing Healing Time Pain Quality of Life Infection Recurrence
Saha et al. (2020)55 22 (39.29%) vs 11 (21.15%); p NR NR NR NR 0 vs 0; p = .773 NR

NR: not reported; RCT: randomized controlled trial. 
a Percentage of healed surface area in study and control groups at 6 weeks.
Tables 9 and 10 summarize the relevance and design and conduct limitations of selected RCTs.

Table 9. Study Relevance Limitations

Study Populationa Interventionb Comparatorc Outcomesd Duration of Follow-upe
Saha et al. (2020)55 4. Single site in Iran 4. Short duration of treatment; 8 weeks   1. Recurrence, quality of life not addressed
5. Clinical significance of difference in wound surface area not prespecified
1. 4 weeks follow-up post-treatment insufficient to assess long-term efficacy
Gupta et al. (2021)51 4. Single site in India 4. Short duration of treatment; 6 weeks 3. Total-contact casting not used in control group 1. Complete wound healing, recurrence, quality of life not addressed
5. Clinical significance of difference in wound surface area not prespecified
1. 6 week study period insufficient to assess long-term efficacy
Hossam et al. (2022)52 4. Single site in Egypt 1. Frequency and type of PRP treatment (injection and/or gel) not standardized
4. Short duration of treatment; 8 weeks
  1. Complete wound healing, recurrence, quality of life not addressed
5. Primary outcome differences and timepoints were not prespecified
1. 8 week study period insufficient to assess long-term efficacy

PRP: platelet-rich plasma.
The study limitations stated in this table are those notable in the current review; this is not a comprehensive gaps assessment. 
a Population key: 1. Intended use population unclear; 2. Clinical context is unclear; 3. Study population is unclear; 4. Study population not representative of intended use.
b Intervention key: 1. Not clearly defined; 2. Version used unclear; 3. Delivery not similar intensity as comparator; 4.Not the intervention of interest.
c Comparator key: 1. Not clearly defined; 2. Not standard or optimal; 3. Delivery not similar intensity as intervention; 4. Not delivered effectively.
d Outcomes key: 1. Key health outcomes not addressed; 2. Physiologic measures, not validated surrogates; 3. No CONSORT reporting of harms; 4. Not establish and validated measurements; 5. Clinical significant difference not prespecified; 6. Clinical significant difference not supported.
e Follow-Up key: 1. Not sufficient duration for benefit; 2. Not sufficient duration for harms.

Table 10. Study Design and Conduct Limitations

Study Allocationa Blindingb Selective Reportingc Data Completenessd Powere Statisticalf
Saha et al. (2020)55            
Gupta et al. (2021)51   1-3. Blinding not described     1. Power calculations not reported 3. Confidence intervals and/or p values not reported
Hossam et al. (2022)52   1-3. Blinding not described   1. High loss to follow-up or missing data; reasons for and extent of missingness unclear at all timepoints 1. Power calculations not reported 3. Confidence intervals not reported

a Allocation key: 1. Participants not randomly allocated; 2. Allocation not concealed; 3. Allocation concealment unclear; 4. Inadequate control for selection bias.
b Blinding key: 1. Not blinded to treatment assignment; 2. Not blinded outcome assessment; 3. Outcome assessed by treating physician.
c Selective Reporting key: 1. Not registered; 2. Evidence of selective reporting; 3. Evidence of selective publication.
d Data Completeness key: 1. High loss to follow-up or missing data; 2. Inadequate handling of missing data; 3. High number of crossovers; 4. Inadequate handling of crossovers; 5. Inappropriate exclusions; 6. Not intent to treat analysis (per protocol for noninferiority trials).
e Power key: 1. Power calculations not reported; 2. Power not calculated for primary outcome; 3. Power not based on clinically important difference.
f Statistical key: 1. Analysis is not appropriate for outcome type: (a) continuous; (b) binary; (c) time to event; 2. Analysis is not appropriate for multiple observations per patient; 3. Confidence intervals and/or p values not reported; 4. Comparative treatment effects not calculated.

Section Summary: Platelet-Rich Plasma for Chronic Wounds
The evidence for autologous PRP for a variety of chronic wounds includes systematic reviews, RCTs, which have been summarized in several systematic reviews, and nonrandomized trials. In meta-analyses of individuals with lower extremity diabetic ulcers, PRP demonstrated an improvement over the control groups in complete wound closure and healing time, but moderate to high risk of bias and imprecision preclude drawing conclusions on other important outcomes such as recurrence, infection, amputation, and quality of life. In individuals with venous ulcers, PRP did not demonstrate an improvement over the control groups in complete wound closure, recurrence, wound infection or quality of life, although imprecision likely precluded identifying differences on these outcomes. In individuals with pressure ulcers, although PRP reduced wound size, other important outcomes such as complete wound closure were not measured. Overall, the studies are small and of low quality, and the results should be interpreted with caution.

Platelet-Rich Plasma for Acute Surgical or Traumatic Wounds
Clinical Context and Therapy Purpose

The purpose of PRP is to provide a treatment option that is an alternative to or an improvement on existing therapies in patients with acute surgical or traumatic wounds.

The following PICO was used to select literature to inform this review.

Populations
The relevant population of interest is individuals with acute surgical or traumatic wounds.

Interventions
The therapy being considered is PRP.

Comparators
Comparators of interest include standard wound care.

Outcomes
The general outcomes of interest are symptoms, change in disease status, morbid events, QOL, and treatment-related morbidity.

Though not completely standardized, follow-up for acute surgical or traumatic wound symptoms would typically occur in the months after starting treatment.

Study Selection Criteria
Methodologically credible studies were selected using the following principles:

  • To assess efficacy outcomes, comparative controlled prospective trials were sought, with a preference for RCTs.
  • In the absence of such trials, comparative observational studies were sought, with a preference for prospective studies.
  • To assess long-term outcomes and adverse events, single-arm studies that capture longer periods of follow-up and/or larger populations were sought.
  • Studies with duplicative or overlapping populations were excluded.

Review of Evidence
Surgical Wounds
Aortic Arch Repair

Zhou et al. (2015) reported on a double-blind RCT with 80 patients that assessed the effect of PRP on the amount of blood transfused in the perioperative period for elective ascending and transverse aortic arch repair.56 An anesthesiologist prepared the PRP so that the surgeon was unaware of the treatment group. The volume of PRP transfused was 726 mL and led to a reduction in transfusion rates for red blood cells, frozen plasma, cryoprecipitate, and platelets by 34% to 70% (p < .02). Hospital length of stay was also reduced (9.4 days vs. 12.7 days). There was no difference in mortality between the 2 groups (1 patient in each group) and no significant differences in postoperative complications or other outcome measures. Corroboration of the effect of PRP on perioperative blood transfusion is needed.

Sternotomy Wounds
Serraino et al. (2015) reported on a large series with historical controls that assessed the occurrence of deep sternal wound infections in patients who underwent cardiac surgery either with (2010 to 2012, 422 consecutive patients) or without (2007 to 2009, 671 consecutive patients) application of PRP.57 The 2 groups were comparable at baseline. At the end of cardiac surgery, PRP gel was applied to the sternum before the closure of subcutaneous tissue. Rates of both deep and superficial wound infections were reduced in the patients treated with PRP (deep: 0.2% vs. 1.5%; superficial: 0.5% vs. 2.8%). Interpretation of these results is limited by likely differences in treatments over time. RCTs are needed to evaluate this potential use of PRP.

Otolaryngology
El-Anwar et al. (2016) reported on an RCT that evaluated PRP in 44 children (age range, 12 to 23 months) undergoing repair of a complete cleft palate.58 Speech and velopharyngeal valve movement on follow-up were evaluated by 3 judges who “usually assessed every patient blindly,” physical examination, video nasoendoscopy, and audio recording of audio perceptual assessment. At 6 months, PRP-treated patients had better nasality grade on audio perceptual assessment (p = .024) and better velopharyngeal closure on endoscopy (p = .016).

A 2008 double-blind RCT assessed the efficacy of PRP following tonsillectomy in 70 children (age range, 4 to 15 years).59 PRP was placed into the tonsil beds of half of the children, where it was directly visible. To compare pain symptoms and recovery, a daily diary was completed by the patient or a family member for 10 days after surgery. A FACES Pain Scale was used for children ages 4 to 7 years, while a numeric pain rating scale was used for children older than 7 years. Diaries from 83% of patients showed no differences in pain, medication doses, activity, and days eating solid foods between the 2 conditions.

Other Surgical Wounds
A 2011 Norwegian trial of PRP applied to saphenous vein harvest sites after wound closure found no differences in the incidence of wound infection or cosmetic result.60

Alamdari et al. (2018) published a clinical trial evaluating the efficacy of pleurodesis with a combination of PRP and fibrin glue compared with surgical intervention. The study population consisted of 52 esophageal cancer patients with postoperative chylothorax who did not respond to conservative management. Each member of the population was consecutively and randomly allocated to either a PRP fibrin glue pleurodesis arm or a surgical thoracic duct ligation arm. Twenty-six in each arm were treated with their respective interventions. The patients were distributed into the intervention arms in a way that made each group similar in terms of tumor size and patient demographics. This distribution procedure was not described. All patients (26) in the PRP treatment arm and 20 (76.9%) in the surgery arm were successfully treated (p = .009). Seven patients (26.92%) of the PRP required a second application of the PRP fibrin glue after a week. The mean length of hospital stay was higher in the surgery group (53.50 ± 16.662 days) than the PRP group (36.04 ± 8.224 days; p < .001). The study was limited due to the fact the procedure for randomization was not described and, thus, its efficacy cannot be evaluated.61

Mohamadi et al. (2019) reported on an RCT of 110 participants in Tehran that evaluated the efficacy of PRP gel in wound healing time following pilonidal sinus surgery.62 Each group included 55 participants. Follow-up duration was 9 weeks. In the treatment group, PRP was both injected into the wound weekly, as well as applied to the wound surface and covered with latex. In the control group, wound dressing was described as "classic", but no other details were provided. Little to no detail was provided about specific outcome assessment methods (i.e., "pain duration was inquired from participants"). All patients completed the study and were included in the outcome assessments. PRP significantly shortened mean healing time (4.8 vs 8.7 weeks; p < .001), pain duration (1.3 vs 3.4 weeks; p < .001), and antibiotic consumption duration (0.57 vs 1.74 weeks; p < .001). This RCT also performed regression analyses to evaluate the correlation between different factors in wound healing activity. Significant negative associations were found between healing time and wound volume and pain duration and angiogenesis. Notable limitations of this study included unclearly defined wound dressing in the comparator group, unblinded and poorly defined outcome assessment, short-term follow-up and lack of assessment of other important health outcomes.

Slaninka et al. (2020) published an RCT that evaluated PRP in 24 individuals in the Czech Republic who had undergone dermo-epidermal skin grafts taken from the thigh area.63 Indications for skin grafts were primarily hard-to-heal lower leg wounds. PRP was applied to 1 thigh and covered with Vaseline-impregnated, open-weave gauze and gauze. The control was the other thigh, which was also covered with open-weave gauze and gauze, but without PRP. Of the 24 included individuals, 3 (12.5%) were excluded after developing infections. The infections were described as first occurring on the non-PRP wound and only subsequently occurring on the PRP wound after several days. PRP significantly shortened median healing time (14 days vs 18 days; p = .026). No other outcomes were reported. Notable limitations of the RCT include its small sample size and that it did not address important health outcomes and harms.

Traumatic Wounds
Kazakos et al. (2009) reported on a prospective RCT that evaluated treatment of acute traumatic wounds (open fractures, closed fractures with skin necrosis, friction burns) with platelet gel in 59 consecutive patients (27 PRP, 32 controls).64 Conventional treatment consisted of topical washing and cleaning of the wounds, removal of the necrotic tissue, and dressing in petroleum jelly gauze every 2 days. In all patients with open tibial fractures, an external fixation system was applied. PRP gel was applied to the wounds after surgical debridement and placement of the external fixation system. The time needed for preparation and application of the PRP gel was 52 minutes. After that, PRP gel was applied to the wounds once weekly in the outpatient clinic until there was adequate tissue regeneration (mean, 21 days) sufficient to undergo reconstructive plastic surgery. Control patients receiving conventional treatment required a mean of 41 days for adequate tissue regeneration. Pain scores were significantly lower in PRP-treated patients at 2 and 3 weeks (visual analog scale score, 58 PRP vs. 80 controls). Although these results are encouraging, additional study with a larger number of patients is needed.

Marck et al. (2016) reported on a randomized, double-blind, within-patient-controlled study in patients with deep dermal to full-thickness burns undergoing split-skin graft, comparing PRP with usual care.65 The study randomized 52 patients, 50 of whom received the allocated PRP intervention. There were no significant differences in short-term (5 to 7 days) rates in graft take in the intervention and control areas on each patient. At 3, 6, and 12 months, there were no significant differences in skin appearance or epithelialization scores.

Yeung et al. (2018) performed a prospective RCT to test the efficacy of lyophilized platelet-rich plasma powder (LPRP) on the healing rate of wounds in patients with deep, second-degree burn injuries in comparison with a control group using a placebo. LPRP was dissolved in a solution and applied on deep second-degree burn wounds once per day for 4 consecutive days. Twenty-seven patients with deep second-degree burns were recruited and then those that met eligibility criteria were randomized into 2 groups. The LPRP group received the intervention (n = 15) and the control group received a placebo application (n = 12). A concentration of 1.0 x 107 platelets/cm2 (wound area) was sprayed on the wound evenly. Function was assessed by the percentage of wound closure and bacteria picking out rate at weeks 2 and 3. The mean burn area of control for the LPRP was 75.65 ± 50.72 cm2 and 99.73 ± 70.17 cm2 (p = .0013), respectively. In the control group, the original wound area was 25.49 cm2 at baseline, 23.79 cm2 (6.67% healed) at week 2, and 4.34 cm2 (86.40% healed) at week 3. In the LPRP group, the original wound area was 84.36 cm2, followed by 23.96 cm2 (71.59% healed) at week 2, and 0.63 cm2 (99.24% healed) at week 3. The wound closure rate at week 2 in the LPRP group reached nearly 80% and was greater than 90% by week 3, showing a significant difference (p < .05). Alternatively, in the control group, the wound closure rates were 60% and 80% in 2 and 3 weeks, respectively. The postoperative infection rate in the LPRP (26.67%) was lower than the control group (33.33%). Neither was significant, statistically. One limitation of this study is that the powder is made by an independent lab and dissolved in a specified amount of water. This provides an opportunity for accidental error-this may also be the case with some liquid PRP.66

Huang et al. (2021) published a meta-analysis of 8 RCTs representing 539 patients with burn wounds.67 The healing rate of burn wounds was improved with PRP (OR, 4.43; 95% CI, 2.13 to 9.22), yielding a significantly shorter wound healing time (OR, -4.23; 95% CI, -5.48 to -2.98) compared to conventional dressings for both superficial and deep burn groups. Incidence of adverse events, pain scores, and scar scores was also all improved in the PRP treatment group. Interpretation of results is limited by risks of bias arising from lack of blinding, small study size, heterogenous PRP preparations, and short follow-up durations.

Section Summary: Platelet-Rich Plasma for Acute Surgical or Traumatic Wounds
The evidence for autologous PRP for a variety of acute surgical or traumatic wounds includes systematic reviews and RCTs. For a variety of other conditions, studies have either not demonstrated a benefit or have demonstrated small benefits in studies with methodologic limitations.

The purpose of the following information is to provide reference material. Inclusion does not imply endorsement or alignment with the evidence review conclusions.

Practice Guidelines and Position Statements
Guidelines or position statements will be considered for inclusion in "Supplemental Information" if they were issued by, or jointly by, a U.S. professional society, an international society with U.S. representation, or National Institute for Health and Care Excellence (NICE). Priority will be given to guidelines that are informed by a systematic review, include strength of evidence ratings, and include a description of management of conflict of interest.

American College of Physicians
In 2015, the American College of Physicians (ACP) published guidelines on treatment of pressure ulcers.68 The guidelines noted that “although low-quality evidence suggests that dressings containing PDGF [platelet-derived growth factors] promote healing, ACP supports the use of other dressings such as hydrocolloid and foam dressings, which are effective at promoting healing and cost less than PDGF dressings.” A search of the ACP website on December 1, 2020 found that this 2015 guideline is now listed as inactive.

Association for the Advancement of Wound Care
The Association for the Advancement of Wound Care developed guideline recommendations for the management of pressure ulcers (2010)69 and venous ulcers (2015)70:

  • Pressure ulcer: “Growth factors are not indicated for PU [pressure ulcers] at this time.” (level C evidence — no randomized controlled trials (RCTs) available comparing growth factors with A-level dressings)69
  • Venous ulcer: “Platelet-derived growth factor has shown no significant effects on VU [venous ulcer healing or recurrence].” (level A evidence)70

National Institute for Health and Care Excellence
In 2019, the National Institute for Health and Care Excellence updated its guidance on the prevention and management of diabetic foot problems.71 The guidance stated that neither autologous platelet-rich plasma gel nor platelet-derived growth factors should be offered in the treatment of diabetic foot ulcers.

U.S. Preventive Services Task Force Recommendations
Not applicable.

Ongoing and Unpublished Clinical Trials
Some larger studies that might influence this review are listed in Table 9.

Table 11. Summary of Key Trials

NCT No. Trial Name Planned Enrollment Completion Date
Ongoing      
NCT02312596a A Prospective, Randomized Clinical Trial of PRP Concepts Fibrin Bio-Matrix in Non-Healing Diabetic Foot Ulcers 200 Dec 2021
NCT02312570a A Prospective, Randomized Clinical Trial of PRP Concepts Fibrin Bio-Matrix in Chronic Non-Healing Pressure Ulcers 200 Dec 2021
NCT02307448a Effectiveness of Autologous Platelet Rich Plasma in the Treatment of Chronic Non-Healing Wounds 80 Dec 2022
NCT02402374a Randomized, Placebo-controlled, Blind-assessor Study to Evaluate the Safety and Efficacy of Autologous Platelet Rich Plasma Gel Prepared With the RegenKit-BCT Plus Family of Kits for the Treatment of Diabetic Foot Ulcer 192 Dec 2020
(unknown)
Unpublished      
NCT02071979a Registry Trial of the Effectiveness of Platelet Rich Plasma for Chronic Non-Healing Wounds (CMS) 1500 Jan 2018
(terminated; updated 01/18)


NCT: national clinical trial; PRP: autologous platelet-rich plasma.
a Denotes industry-sponsored or cosponsored trial.

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  33. Karimi R, Afshar M, Salimian M, et al. The effect of platelet rich plasma dressing on healing diabetic foot ulcers. Nurs Midwifery Stud. 2016;5(3):e30314.
  34. Li L, Chen D, Wang C, et al. Autologous platelet-rich gel for treatment of diabetic chronic refractory cutaneous ulcers: A prospective, randomized clinical trial. Wound Repair Regen. 2015; 23(4): 495-505. PMID 25847503
  35. Liu GY, Deng XL, Sun Y, Wang MZ, Gao J, Gou J. Effect of autologous platelet-rich gel on the treatment of diabetic foot ulcers. J Xi'an Jiaotong Univ (Med Sci). 2016;37:264-267.
  36. Ma L. Clinical efficacy of autologous platelet rich gel in the treatment of diabetic foot and diabetic chronic cutaneous ulcer. Chin J Mod Drug Appl.2014;8:86-88
  37. Miłek T, Baranowski K, Zydlewski P, et al. Role of plasma growth factor in the healing of chronic ulcers of the lower legs and foot due to ischaemia in diabetic patients. Postepy Dermatol Alergol. Dec 2017; 34(6): 601-606. PMID 29422826
  38. Qi KQ, ChenTJ PJL, Shang XL. The application of autologous platelet-rich gel in the treatment of diabetic foot ulcers. Chin J Diabetes. 2014;22: 1102-1105.
  39. Saad Setta H, Elshahat A, Elsherbiny K, et al. Platelet-rich plasma versus platelet-poor plasma in the management of chronic diabetic foot ulcers: a comparative study. Int Wound J. Jun 2011; 8(3): 307-12. PMID 21470370
  40. Saldalamacchia G, Lapice E, Cuomo V, et al. A controlled study of the use of autologous platelet gel for the treatment of diabetic foot ulcers. Nutr Metab Cardiovasc Dis. Dec 2004; 14(6): 395-6. PMID 15853123
  41. Serra R, Grande R, Butrico L, et al. Skin grafting and topical application of platelet gel in the treatment of vascular lower extremity ulcers. Acta Phlebologica. 2014 01 Dec;15(3):129-36.
  42. Singh SP, Kumar V, Pandey A, et al. Role of platelet-rich plasma in healing diabetic foot ulcers: a prospective study. J Wound Care. Sep 02 2018; 27(9): 550-556. PMID 30204574
  43. Steed DL, Goslen JB, Holloway GA, et al. Randomized prospective double-blind trial in healing chronic diabetic foot ulcers. CT-102 activated platelet supernatant, topical versus placebo. Diabetes Care. Nov 1992; 15(11): 1598-604. PMID 1468291
  44. Steed DL, Edington HD, Webster MW. Recurrence rate of diabetic neurotrophic foot ulcers healed using topical application of growth factors released from platelets. Wound Repair Regen. 1996; 4(2): 230-3. PMID 17177818
  45. Xie J, Fang Y, Zhao Y, et al. Autologous Platelet-Rich Gel for the Treatment of Diabetic Sinus Tract Wounds: A Clinical Study. J Surg Res. Mar 2020; 247: 271-279. PMID 31706541
  46. Yang L, Gao L, Lv Y, et al. Autologous platelet-rich gel for lower-extremity ischemic ulcers in patients with type 2 diabetes. International Journal of Clinical and Experimental Medicine. 2017 30 Sep;10(9):13796-801.
  47. Zhang L Qiang D, Sun YH. Clinical observation of autologous platelet rich gel in the treatment of diabetic foot ulcers. Ningxia Med J. 2016;38:809-811.
  48. Zhou XP, Gong YX, Yang ZD, Wang W. Application value analysis of autologous platelet gel in refractory skin ulcer of diabetic patients. World Lat Med Inform. 2015;15:19-20
  49. Zhu SF, Liu H, Li L, Wang XF. Preliminary application of autologous platelet rich gel in diabetic neuropathic ulcers. Med Innov China. 2012;9:18-19.
  50. Centers for Medicare & Medicaid Services (CMS). National Coverage Analysis (NCA) Tracking Sheet for Autologous Blood-Derived Products for Chronic Non-Healing Wounds (CAG-00190R4). 2020; https://www.cms.gov/medicare-coverage-database/details/nca-tracking-sheet.aspx?NCAId=300&NCDId=217. Accessed December 10, 2022.
  51. Gupta A, Channaveera C, Sethi S, et al. Efficacy of Intralesional Platelet-Rich Plasma in Diabetic Foot Ulcer. J Am Podiatr Med Assoc. May 01 2021; 111(3). PMID 33231614
  52. Hossam EM, Alserr AHK, Antonopoulos CN, et al. Autologous Platelet Rich Plasma Promotes the Healing of Non-Ischemic Diabetic Foot Ulcers. A Randomized Controlled Trial. Ann Vasc Surg. May 2022; 82: 165-171. PMID 34896242
  53. Qu W, Wang Z, Hunt C, et al. The Effectiveness and Safety of Platelet-Rich Plasma for Chronic Wounds: A Systematic Review and Meta-analysis. Mayo Clin Proc. Sep 2021; 96(9): 2407-2417. PMID 34226023
  54. Oliveira BGRB, Carvalho MR, Ribeiro APL. Cost and effectiveness of Platelet Rich Plasma in the healing of varicose ulcer: Meta-analysis. Rev Bras Enferm. 2020; 73(4): e20180981. PMID 32609173
  55. Saha S, Patra AC, Gowda SP, et al. Effectiveness and safety of autologous platelet-rich plasma therapy with total contact casting versus total contact casting alone in treatment of trophic ulcer in leprosy: An observer-blind, randomized controlled trial. Indian J Dermatol Venereol Leprol. 2020; 86(3): 262-271. PMID 31997794
  56. Zhou SF, Estrera AL, Loubser P, et al. Autologous platelet-rich plasma reduces transfusions during ascending aortic arch repair: a prospective, randomized, controlled trial. Ann Thorac Surg. Apr 2015; 99(4): 1282-90. PMID 25661906
  57. Serraino GF, Dominijanni A, Jiritano F, et al. Platelet-rich plasma inside the sternotomy wound reduces the incidence of sternal wound infections. Int Wound J. Jun 2015; 12(3): 260-4. PMID 23692143
  58. El-Anwar MW, Nofal AA, Khalifa M, et al. Use of autologous platelet-rich plasma in complete cleft palate repair. Laryngoscope. Jul 2016; 126(7): 1524-8. PMID 27075516
  59. Sidman JD, Lander TA, Finkelstein M. Platelet-rich plasma for pediatric tonsillectomy patients. Laryngoscope. Oct 2008; 118(10): 1765-7. PMID 18622315
  60. Almdahl SM, Veel T, Halvorsen P, et al. Randomized prospective trial of saphenous vein harvest site infection after wound closure with and without topical application of autologous platelet-rich plasma. Eur J Cardiothorac Surg. Jan 2011; 39(1): 44-8. PMID 20634084
  61. Alamdari DH, Asadi M, Rahim AN, et al. Efficacy and Safety of Pleurodesis Using Platelet-Rich Plasma and Fibrin Glue in Management of Postoperative Chylothorax After Esophagectomy. World J Surg. Apr 2018; 42(4): 1046-1055. PMID 28986682
  62. Mohamadi S, Norooznezhad AH, Mostafaei S, et al. A randomized controlled trial of effectiveness of platelet-rich plasma gel and regular dressing on wound healing time in pilonidal sinus surgery: Role of different affecting factors. Biomed J. Dec 2019; 42(6): 403-410. PMID 31948604
  63. Slaninka I, Fibír A, Kaška M, et al. Use of autologous platelet-rich plasma in healing skin graft donor sites. J Wound Care. Jan 02 2020; 29(1): 36-41. PMID 31930949
  64. Kazakos K, Lyras DN, Verettas D, et al. The use of autologous PRP gel as an aid in the management of acute trauma wounds. Injury. Aug 2009; 40(8): 801-5. PMID 18703188
  65. Marck RE, Gardien KL, Stekelenburg CM, et al. The application of platelet-rich plasma in the treatment of deep dermal burns: A randomized, double-blind, intra-patient controlled study. Wound Repair Regen. Jul 2016; 24(4): 712-20. PMID 27169627
  66. Yeung CY, Hsieh PS, Wei LG, et al. Efficacy of Lyophilised Platelet-Rich Plasma Powder on Healing Rate in Patients With Deep Second Degree Burn Injury: A Prospective Double-Blind Randomized Clinical Trial. Ann Plast Surg. Feb 2018; 80(2S Suppl 1): S66-S69. PMID 29369904
  67. Huang H, Sun X, Zhao Y. Platelet-rich plasma for the treatment of burn wounds: A meta-analysis of randomized controlled trials. Transfus Apher Sci. Feb 2021; 60(1): 102964. PMID 33127309
  68. Qaseem A, Humphrey LL, Forciea MA, et al. Treatment of pressure ulcers: a clinical practice guideline from the American College of Physicians. Ann Intern Med. Mar 03 2015; 162(5): 370-9. PMID 25732279
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  72. Centers for Medicare & Medicaid Services (CMS). National coverage determination (NCD) for blood-derived products for chronic non-healing wounds (270.3). Effective date of version August 2, 2012. https://www.cms.gov/medicare-coverage-database/details/ncd-details.aspx?NCDId=217&ncdver=5&NCAId=260. Accessed December 7, 2022.
  73. Centers for Medicare & Medicaid Services (CMS). Decision Memo for Autologous Blood-Derived Products for Chronic Non-Healing Wounds (CAG-00190R3). 2012; https://www.cms.gov/medicare-coverage-database/details/nca-decision-memo.aspx?NCAId=260. Accessed December 11, 2022.
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  75. Centers for Medicare & Medicaid Services (CMS). Decision Memo for Autologous Blood Derived Products for Chronic Non-Healing Wounds (CAG-00190R2). 2008; https://www.cms.gov/medicare-coverage-database/details/nca-decision-memo.aspx?NCAId=208. Accessed December 12, 2022.
  76. Qu W, Wang Z, Hunt C, Morrow AS, Urtecho M, Amin M, Shah S, Hasan B, Abd-Rabu R, Ashmore Z, Kubrova E, Prokop LJ, Murad MH. Platelet-Rich Plasma for Wound Care in the Medicare Population. Technology Assessment Program Project ID 040-353-492. (Prepared by the Mayo Clinic Evidence-based Practice Center under Contract No. HHSA290201500013I.) Rockville, MD: Agency for Healthcare Research and Quality. https://www.ahrq.gov/sites/default/files/wysiwyg/research/findings/ta/prp/prp-wound-care.pdf. Accessed December 13, 2022.
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  78. Centers for Medicare & Medicaid Services (CMS). National Coverage Analysis (NCA) for Autologous Blood-Derived Products for Chronic Non-Healing Wounds (CAG-00190R4). 2021; https://www.cms.gov/medicare-coverage-database/view/ncacal-decision-memo.aspx?proposed=N&ncaid=300. Accessed December 9, 2022.

Coding Section

Codes

Number

Description

CPT

0232T

Injection(s), platelet rich plasma, any site, including image guidance, harvesting and preparation when performed

HCPCS

G0460

Autologous platelet rich plasma for chronic wounds/ulcers, including phlebotomy, centrifugation, and all other preparatory procedures, administration and dressings, per treatment

  G0465

Autologous platelet rich plasma (prp) or other blood-derived product for diabetic chronic wounds/ulcers, using an fda-cleared device for this indication, (includes as applicable administration, dressings, phlebotomy, centrifugation or mixing, and all other preparatory procedures, per treatment)                    

 

P9020

Platelet rich plasma, each unit

 

S0157

Becaplermin gel 0.01%, 0.5 gm

 

S9055

Procuren or other growth factor preparation to promote wound healing

ICD-10-CM

E11.40-E11.43

Diabetes with neurological manifestations code range

 

E11.49

Diabetes with other diabetic neurological complication

 

L89.000-L89.96

Pressure ulcer code range

 

L97.121-L97.929

Pressure ulcer lower limbs and foot code range

 

L98.491-L98.499

Non pressure chronic ulcer of skin and other sites

ICD-10-PCS

 

ICD-10-PCS Codes are only for use on inpatient services. There is no specific ICD-10-PCS code for this procedure

Type of Service

Medical

 

Place of Service 

Inpatient, outpatient, home 

 

Procedure and diagnosis codes on Medical Policy documents are included only as a general reference tool for each policy. They may not be all-inclusive.

This medical policy was developed through consideration of peer-reviewed medical literature generally recognized by the relevant medical community, U.S. FDA approval status, nationally accepted standards of medical practice and accepted standards of medical practice in this community, Blue Cross Blue Shield Association technology assessment program (TEC) and other nonaffiliated technology evaluation centers, reference to federal regulations, other plan medical policies, and accredited national guidelines.

"Current Procedural Terminology © American Medical Association. All Rights Reserved" 

History From 2014 Forward     

09/01/2023 Annual review, no change to policy intent. Updating regulatory status, rationale and references. Adding HCPCS G0465
09/13/2022 Annual review, no change to policy intent. Updating rationale and references.

09/01/2021 

Annual review, no change to policy intent. Updating regulatory status, rationale and references. 

09/01/2020 

Annual review,no change to policy intent. Updating regulatory status, guidelines, rationale, references and coding. 

09/03/2019 

Annual review, no change to policy intent. Updating description, rationale and references.

08/30/2018 

Annual review, no change to policy intent. Updating rationale and references. 

09/20/2017 

Annual review, no change to policy intent. Updating background, description, regulatory status, related policies, rationale and references. 

09/01/2016 

Annual review, no change to policy intent. Updating title, background, description, regulatory status, rationale and references. 

09/15/2015 

Annual review, removing the following from the policy area: Primary use (injection) for other conditions such as epicondylitis (i.e., tennis elbow), plantar fasciitis, or Dupuytren's contracture. Updated description, background, regulatory status, rationale and reference. Added coding.

09/18/2014

Annual review. Updated regulatory status, rationale and reference. Added benefit application and ICD 9&10. No change to policy intent.

Complementary Content
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