Chronic Pain and Everyday Life
Chronic noncancer pain is pain that lasts for an extended period of time and is not related to cancer. It can affect many areas of the body, including the joints, tendons, muscles, spine, and soft tissues.
For many people, chronic pain can interfere with daily activities, work, exercise, sleep, and overall quality of life. Because chronic pain can be complex, treatment often involves more than one approach. Physical therapy, movement, lifestyle changes, medications, injections, and other therapies may all play a role depending on the condition.
Researchers continue to study options that may not only reduce the chronic pain, but also support the body’s natural repair environment. One treatment that has received growing attention is platelet-rich plasma, also known as PRP.
Why PRP Stands Out in Regenerative Medicine
PRP is made from a patient’s own blood. The blood is processed to concentrate platelets, which contain growth factors, cytokines, and other signaling molecules involved in healing. Platelets are commonly known for helping blood clot, but they also play a role in tissue repair. In regenerative medicine, PRP is being studied because it may help support inflammation balance, cell communication, blood vessel formation, and tissue remodeling.
For chronic pain conditions, PRP may be especially interesting because many painful musculoskeletal issues involve irritated or damaged tissue, inflammation, and slower healing responses.
A Closer Look at the Review
This 2025 systematic review and meta-analysis evaluated PRP injections for chronic noncancer pain. The researchers focused only on randomized controlled trials, which are considered one of the stronger study designs for comparing treatments.
The review included 56 randomized controlled trials, with 103 comparisons and a total of 7,142 patients. The studies compared PRP with placebo or active drug treatments, such as corticosteroid or hyaluronic acid injections.
The researchers looked at pain scores across multiple chronic noncancer pain conditions, including:
- Osteoarthritic knee pain
- Rotator cuff tendinopathy or tears
- Plantar fasciitis
- Other chronic musculoskeletal pain conditions
The main goal was to better understand whether PRP was associated with meaningful pain reduction across different types of chronic pain.
What the Evidence Suggests
Overall, the review found that PRP was associated with a statistically significant reduction in pain scores compared with placebo and active drug treatments.
One of the most important findings was related to timing. PRP did not show a significant difference in pain scores when follow-up was shorter than 3 months. However, when follow-up lasted 3 months or longer, PRP was associated with a moderate reduction in pain.
This is an important point because PRP may not work like a quick numbing medication. Instead, its effects may develop over time as the body responds to the biological signals released by platelets.
The review also found that PRP showed favorable results in certain conditions. PRP was associated with significant pain reduction in osteoarthritic knee pain and rotator cuff tendinopathy or tears. When compared with specific active treatments, PRP also showed stronger pain reduction than corticosteroid and hyaluronic acid injections.
The Repair Signals Behind PRP
PRP may help support pain relief by influencing the tissue environment around the painful area. Many chronic pain conditions involve inflammation, tissue stress, and impaired healing. PRP contains growth factors and signaling molecules that may help guide tissue repair and regulate inflammatory activity.
For example, in joint or tendon conditions, PRP may help support collagen production, cell activity, and remodeling of the extracellular matrix. The extracellular matrix is the structural network that helps tissues maintain strength, flexibility, and function.
PRP may also support angiogenesis, or the formation of new blood vessels. Better blood supply can help deliver oxygen, nutrients, and repair signals to tissues that may not heal easily on their own.
Rather than simply blocking pain signals, PRP is being studied for its potential to support a healthier healing environment.
What This Means for Pain Research
This study is meaningful because it looked across a broad range of chronic noncancer pain conditions instead of focusing on just one diagnosis. That gives readers a wider view of how PRP is being studied in pain management and regenerative medicine.
The findings suggest that PRP may be especially helpful when the goal is longer-term support rather than only short-term relief. This makes sense because biologic therapies often work by encouraging gradual tissue and inflammatory changes over time.
For patients with conditions such as knee osteoarthritis or rotator cuff-related pain, the study adds to growing interest in PRP as a regenerative option that may support pain reduction and tissue recovery.
Where the Research Goes Next
The study highlights PRP as a promising area of continued research for chronic noncancer pain. Future studies can help clarify which conditions respond best, what PRP preparation methods are most effective, and how dosing, injection technique, and follow-up timing may influence results.
As PRP research continues to evolve, the goal is to better understand how this therapy can be used in a more targeted and personalized way.
Main Takeaway
This systematic review and meta-analysis found that PRP injections were associated with reduced pain across several chronic noncancer pain conditions, especially when follow-up lasted 3 months or longer. PRP showed particularly encouraging results for osteoarthritic knee pain and rotator cuff tendinopathy or tears.
While treatment decisions should always be individualized, this study supports PRP as a promising regenerative medicine approach for longer-term pain support, tissue repair signaling, and improved healing environments.
Source
Wang F, Meng F, Chan TCW, et al. Platelet-Rich Plasma for Treating Chronic Noncancer Pain: A Systematic Review and Meta-analysis of Randomized Controlled Trials. Pain and Therapy. 2025 Aug;14:1169–1188. doi: 10.1007/s40122-025-00751-5. PMID: 40445566; PMCID: PMC12279671. Available from: https://pmc.ncbi.nlm.nih.gov/articles/PMC12279671/
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