Knee OsteoarthritisPhase 4EmCyteNCT03289416
Bone Marrow Aspirate Compared to Platelet Rich Plasma for Treating Knee Osteoarthritis
A Phase 4 study testing Pure PRP II and PureBMC in people with Knee Osteoarthritis, run by Andrews Research & Education Foundation at 1 site in United States.
Trial summary
This study is intended to compare whether bone marrow aspirate concentrate or platelet rich plasma injections is more effective in treating knee osteoarthritis. Read more about this study
- Who is it for?
- Ages 18 to 80 years
- Conditions the study is for
- Knee Osteoarthritis
- What is being tested?
- Pure PRP II and PureBMC
- Type of treatment
- Injection or infusion
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 90 participants
- Where
- 1 siteUnited States
- Study dates
- 5 Dec 2013to Feb 2020
- Phase
- Phase 4
- Are there results?
- Yes, posted in the registrySummary in the doctors' view
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 to 80 years
- All sexes
- No healthy volunteers
- Adult, Older adult
Who may be able to join
- Male or female age 18-80 years
- Knee osteoarthritis
- Subjects must present with pain or swelling to target knee for at least 4 months
- Kellgren-Lawrence score between 1 and 3 upon x-ray evaluation
- Must be willing and able to provide informed consent
- Willing and able to return for scheduled follow-up visits
Who cannot join
- Major mechanical axis deviation of more than 50% into either compartment (varus or valgus )
- Have had a corticosteroid injection within 3 months or a hyaluronic acid injection within 6 months
- History of the following medical conditions:
- diabetes
- autoimmune disorders
- disorders requiring immunosuppression
Show all 14Show fewer
- rheumatoid arthritis
- hemophilic arthropathy
- infectious arthritis
- Charcot's knee
- Paget's disease of the femur or tibia
- Cancer
- Ongoing infectious disease
- Significant cardiovascular, renal or hepatic disease
Trial locations and contacts
1 site in 1 country.
United States1 site
Andrews Research & Education Foundation
Gulf Breeze, Florida, 32561
About this study
Official title: Efficacy of Bone Marrow Aspirate Concentrate Compared With Platelet Rich Plasma for the Treatment of Symptomatic Knee Osteoarthritis: A Randomized, Controlled Clinical Trial
This study is intended to compare whether bone marrow aspirate concentrate or platelet rich plasma injections is more effective in treating knee osteoarthritis.
Read the detailed description
While PRP shows promise in helping restore function to these patients, there are still concerns with PRP's long term outcomes. Another option that has become more popular for physicians treating this debilitation condition is bone marrow aspirate concentrate (BMA), which use's undifferentiated cells found in the bone marrow to promote healing and tissue regeneration. These cells have the ability to replicate into a multiple different tissue types. With BMA, the marrow is concentrated provide better healing of the damaged tissue and aid in growth and repair. The full benefits of BMA are still unknown, but studies have shown the treatment can reduce swelling, relieve pain, and improve healing in articular cartilage and bone grafts.
Autologous BMA has shown promising clinical potential as a therapeutic agent in regenerative medicine, including the treatment of osteoarthritis and cartilage defects, and the clinical efficacy platelet rich plasma has been documented to alleviate symptoms related to knee osteoarthritis. However, randomized, prospective comparison of the two techniques has not been reported in the literature and long term follow-up for both treatments is limited, and especially limited in the use of BMA for osteoarthritis treatment.
- Conditions
- Knee Osteoarthritis
- Being tested
- Pure PRP II, PureBMC
- Keywords
- knee, osteoarthritis, platelet rich plasma (PRP), bone marrow concentrate (BMC)
- Medical subject headings
- Osteoarthritis, Knee, Osteoarthritis
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Pure PRP IICombination product
Also called GS60-PURE-II
The Pure PRP II system will be used to collect and concentrate blood into platelet rich plasma that will be injected into the knee.
PureBMCCombination product
Also called BC60-PURE
The PureBMC system will be used to collect and concentrate bone marrow aspirate into bone marrow concentrate that will be injected into the knee.
| Study group | Role | What they receive |
|---|---|---|
| Platelet Rich Plasma (PRP) | Other | Blood will be drawn from the patient using the Pure PRP II system into a syringe with anticoagulant (sodium citrate). 1 mL of blood will be separated and sent to a lab for analysis. Remaining blood will be separated into a single concentrating device and centrifuged to separate red blood cells from plasma and platelets. The plasma and platelets will be separated off with a syringe and re-centrifuged to separate the platelets from the plasma. 1 mL will be separated and sent to a lab for analysis leaving 6 mL for injection. Both the 1 mL of blood and the 1 mL of PRP will be sent to an independent lab to undergo analysis for CBC, TNC, human CD34+ hematopoietic stem/progenitor cell assay and CFU-F. Physician will then inject the PRP into the affected knee joint. Receives: Combination Product: Pure PRP II |
| Bone Marrow Concentrate (BMC) | Other | Bone marrow will be harvested from the posterior iliac crest using the PureBMC system. 50 mL of bone marrow will be drawn into one syringe containing 10 mL of sodium citrate. Marrow will be filtered and centrifuged for separation of the bone marrow concentrate. Plasma and cell concentrate will be separated off with two syringes and re-centrifuged to separate the cell concentrate from the plasma. After plasma is drawn off, BMC will be drawn into a syringe for injection into affected knee. BMC production procedure results in 7 mL of product and 1 mL will be separated and sent to a lab for analysis. Both 1 mL of BMA and 1 mL of BMC will be sent to an independent lab to undergo analysis for CBC, TNC, human CD34+ hematopoietic stem/progenitor cell assay and CFU-F. Receives: Combination Product: PureBMC |
What is being measured
The primary outcome is the main question the study is designed to answer.
Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) Measurements
Pain score measurements utilizing patient surveys; scale 0-20 with 20 being most pain and 0 being least pain
Measured: Baseline, 1 month, 3 months, 6 months, 9 months, and 12 months
Secondary outcomes (1)
Subjective International Knee Documentation Committee Subjective Score (IKDC)
Pain score measurement utilizing patient surveys; scale is 0-100 with 0 being lowest level of function and 100 being the highest
Measured: Baseline, 1 month, 3 months, 6 months, 9 months, and 12 months
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted21 Sep 2017
- Study start5 Dec 2013
- Primary completionFeb 2020
- Study completionFeb 2020
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Posted resultsParticipant flow, outcome measures and adverse events reported by the sponsor.
- Publications (16)Papers the sponsor has linked to this study.
- Other trials for Knee OsteoarthritisStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase 4
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Model description
- Patients will be randomly assigned to either a PRP intervention group or the BMC intervention group. Knee pain and function outcomes of enrolled patients in the two groups will be compared to determine which treatment is more effective in treating knee osteoarthritis.
- Masking
- None (open label)
- Enrolment
- 90 participants (actual)
Sponsor and investigators
- Lead sponsor
- Andrews Research & Education Foundation
- Sponsor type
- University, hospital or other
- Collaborators
- EmCyte Corporation, BioSciences Research Associates, Inc
- Responsible party
- Sponsor
- Investigators
- Joshua Hackel, MD, Principal investigator, Andrews Institute for Orthopaedic & Sports Medicine
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT03289416
- Sponsor's protocol ID
- EmCyte
- Acronym
- EmCyte
- Status last verified
- Apr 2025
- First submitted
- 18 Sep 2017
- Last updated
- 20 Apr 2025
- Results posted
- Yes, on ClinicalTrials.gov
- Data monitoring committee
- No
- FDA-regulated drug
- Yes
- FDA-regulated device
- No
- Individual data sharing
- No
Publications
Hootman JM, Helmick CG. Projections of US prevalence of arthritis and associated activity limitations. Arthritis Rheum. 2006 Jan;54(1):226-9. doi: 10.1002/art.21562.
PubMed 16385518Spakova T, Rosocha J, Lacko M, Harvanova D, Gharaibeh A. Treatment of knee joint osteoarthritis with autologous platelet-rich plasma in comparison with hyaluronic acid. Am J Phys Med Rehabil. 2012 May;91(5):411-7. doi: 10.1097/PHM.0b013e3182aab72.
PubMed 22513879Kon E, Mandelbaum B, Buda R, Filardo G, Delcogliano M, Timoncini A, Fornasari PM, Giannini S, Marcacci M. Platelet-rich plasma intra-articular injection versus hyaluronic acid viscosupplementation as treatments for cartilage pathology: from early degeneration to osteoarthritis. Arthroscopy. 2011 Nov;27(11):1490-501. doi: 10.1016/j.arthro.2011.05.011. Epub 2011 Aug 10.
PubMed 21831567Cerza F, Carni S, Carcangiu A, Di Vavo I, Schiavilla V, Pecora A, De Biasi G, Ciuffreda M. Comparison between hyaluronic acid and platelet-rich plasma, intra-articular infiltration in the treatment of gonarthrosis. Am J Sports Med. 2012 Dec;40(12):2822-7. doi: 10.1177/0363546512461902. Epub 2012 Oct 25.
PubMed 23104611Patel S, Dhillon MS, Aggarwal S, Marwaha N, Jain A. Treatment with platelet-rich plasma is more effective than placebo for knee osteoarthritis: a prospective, double-blind, randomized trial. Am J Sports Med. 2013 Feb;41(2):356-64. doi: 10.1177/0363546512471299. Epub 2013 Jan 8.
PubMed 23299850Li M, Zhang C, Ai Z, Yuan T, Feng Y, Jia W. [Therapeutic effectiveness of intra-knee-articular injection of platelet-rich plasma on knee articular cartilage degeneration]. Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi. 2011 Oct;25(10):1192-6. Chinese.
PubMed 22069972Filardo G, Kon E, Di Martino A, Di Matteo B, Merli ML, Cenacchi A, Fornasari PM, Marcacci M. Platelet-rich plasma vs hyaluronic acid to treat knee degenerative pathology: study design and preliminary results of a randomized controlled trial. BMC Musculoskelet Disord. 2012 Nov 23;13:229. doi: 10.1186/1471-2474-13-229.
PubMed 23176112Vaquerizo V, Plasencia MA, Arribas I, Seijas R, Padilla S, Orive G, Anitua E. Comparison of intra-articular injections of plasma rich in growth factors (PRGF-Endoret) versus Durolane hyaluronic acid in the treatment of patients with symptomatic osteoarthritis: a randomized controlled trial. Arthroscopy. 2013 Oct;29(10):1635-43. doi: 10.1016/j.arthro.2013.07.264.
PubMed 24075613Convery PN, Milligan KR, Quinn P, Scott K, Clarke RC. Low-dose intra-articular ketorolac for pain relief following arthroscopy of the knee joint. Anaesthesia. 1998 Nov;53(11):1125-9. doi: 10.1046/j.1365-2044.1998.00582.x.
PubMed 10023285Ng HP, Nordstrom U, Axelsson K, Perniola AD, Gustav E, Ryttberg L, Gupta A. Efficacy of intra-articular bupivacaine, ropivacaine, or a combination of ropivacaine, morphine, and ketorolac on postoperative pain relief after ambulatory arthroscopic knee surgery: a randomized double-blind study. Reg Anesth Pain Med. 2006 Jan-Feb;31(1):26-33. doi: 10.1016/j.rapm.2005.09.009.
PubMed 16418021Gupta A, Axelsson K, Allvin R, Liszka-Hackzell J, Rawal N, Althoff B, Augustini BG. Postoperative pain following knee arthroscopy: the effects of intra-articular ketorolac and/or morphine. Reg Anesth Pain Med. 1999 May-Jun;24(3):225-30. doi: 10.1016/s1098-7339(99)90132-3.
PubMed 10338172Beitzel K, McCarthy MB, Cote MP, Apostolakos J, Russell RP, Bradley J, ElAttrache NS, Romeo AA, Arciero RA, Mazzocca AD. The effect of ketorolac tromethamine, methylprednisolone, and platelet-rich plasma on human chondrocyte and tenocyte viability. Arthroscopy. 2013 Jul;29(7):1164-74. doi: 10.1016/j.arthro.2013.04.006.
PubMed 23809450Hauser RA, Orlofsky A. Regenerative injection therapy with whole bone marrow aspirate for degenerative joint disease: a case series. Clin Med Insights Arthritis Musculoskelet Disord. 2013 Sep 4;6:65-72. doi: 10.4137/CMAMD.S10951. eCollection 2013.
PubMed 24046512Saw KY, Hussin P, Loke SC, Azam M, Chen HC, Tay YG, Low S, Wallin KL, Ragavanaidu K. Articular cartilage regeneration with autologous marrow aspirate and hyaluronic Acid: an experimental study in a goat model. Arthroscopy. 2009 Dec;25(12):1391-400. doi: 10.1016/j.arthro.2009.07.011. Epub 2009 Sep 17.
PubMed 19962065Anz AW, Plummer HA, Cohen A, Everts PA, Andrews JR, Hackel JG. Bone Marrow Aspirate Concentrate Is Equivalent to Platelet-Rich Plasma for the Treatment of Knee Osteoarthritis at 2 Years: A Prospective Randomized Trial. Am J Sports Med. 2022 Mar;50(3):618-629. doi: 10.1177/03635465211072554.
PubMed 35289231
Study at a glance
From the registry record, last updated by the sponsor on 20 Apr 2025. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Efficacy of Bone Marrow Aspirate Concentrate Compared With Platelet Rich Plasma for the Treatment of Symptomatic Knee Osteoarthritis: A Randomized, Controlled Clinical Trial
- ClinicalTrials.gov ID
- NCT03289416
- Acronym / sponsor ID
- EmCyte / EmCyte
- Conditions
- Knee Osteoarthritis
- Keywords
- knee, osteoarthritis, platelet rich plasma (PRP), bone marrow concentrate (BMC)
- Phase
- Phase 4
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 90 participants (actual)
- Lead sponsor
- Andrews Research & Education FoundationUniversity, hospital or other
- Collaborators
- EmCyte Corporation, BioSciences Research Associates, Inc
- Study start
- 5 Dec 2013 (actual)
- Primary completion
- Feb 2020 (actual)
- Study completion
- Feb 2020 (actual)
- First posted
- 21 Sep 2017 (actual)
- Results
- Posted 20 Apr 2025
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
This study is intended to compare whether bone marrow aspirate concentrate or platelet rich plasma injections is more effective in treating knee osteoarthritis.
Detailed description
While PRP shows promise in helping restore function to these patients, there are still concerns with PRP's long term outcomes. Another option that has become more popular for physicians treating this debilitation condition is bone marrow aspirate concentrate (BMA), which use's undifferentiated cells found in the bone marrow to promote healing and tissue regeneration. These cells have the ability to replicate into a multiple different tissue types. With BMA, the marrow is concentrated provide better healing of the damaged tissue and aid in growth and repair. The full benefits of BMA are still unknown, but studies have shown the treatment can reduce swelling, relieve pain, and improve healing in articular cartilage and bone grafts.
Autologous BMA has shown promising clinical potential as a therapeutic agent in regenerative medicine, including the treatment of osteoarthritis and cartilage defects, and the clinical efficacy platelet rich plasma has been documented to alleviate symptoms related to knee osteoarthritis. However, randomized, prospective comparison of the two techniques has not been reported in the literature and long term follow-up for both treatments is limited, and especially limited in the use of BMA for osteoarthritis treatment.
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Number of arms
- 2
- Model description
- Patients will be randomly assigned to either a PRP intervention group or the BMC intervention group. Knee pain and function outcomes of enrolled patients in the two groups will be compared to determine which treatment is more effective in treating knee osteoarthritis.
| Arm | Type | Receives |
|---|---|---|
| Platelet Rich Plasma (PRP) | Other | Combination Product: Pure PRP IIBlood will be drawn from the patient using the Pure PRP II system into a syringe with anticoagulant (sodium citrate). 1 mL of blood will be separated and sent to a lab for analysis. Remaining blood will be separated into a single concentrating device and centrifuged to separate red blood cells from plasma and platelets. The plasma and platelets will be separated off with a syringe and re-centrifuged to separate the platelets from the plasma. 1 mL will be separated and sent to a lab for analysis leaving 6 mL for injection. Both the 1 mL of blood and the 1 mL of PRP will be sent to an independent lab to undergo analysis for CBC, TNC, human CD34+ hematopoietic stem/progenitor cell assay and CFU-F. Physician will then inject the PRP into the affected knee joint. |
| Bone Marrow Concentrate (BMC) | Other | Combination Product: PureBMCBone marrow will be harvested from the posterior iliac crest using the PureBMC system. 50 mL of bone marrow will be drawn into one syringe containing 10 mL of sodium citrate. Marrow will be filtered and centrifuged for separation of the bone marrow concentrate. Plasma and cell concentrate will be separated off with two syringes and re-centrifuged to separate the cell concentrate from the plasma. After plasma is drawn off, BMC will be drawn into a syringe for injection into affected knee. BMC production procedure results in 7 mL of product and 1 mL will be separated and sent to a lab for analysis. Both 1 mL of BMA and 1 mL of BMC will be sent to an independent lab to undergo analysis for CBC, TNC, human CD34+ hematopoietic stem/progenitor cell assay and CFU-F. |
Who may qualify
- Ages
- 18 to 80 years
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (6 listed)
- Male or female age 18-80 years
- Knee osteoarthritis
- Subjects must present with pain or swelling to target knee for at least 4 months
- Kellgren-Lawrence score between 1 and 3 upon x-ray evaluation
- Must be willing and able to provide informed consent
Key exclusion criteria (14 listed)
- Major mechanical axis deviation of more than 50% into either compartment (varus or valgus )
- Have had a corticosteroid injection within 3 months or a hyaluronic acid injection within 6 months
- History of the following medical conditions:
- diabetes
- autoimmune disorders
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| Pure PRP IIAlso: GS60-PURE-IIThe Pure PRP II system will be used to collect and concentrate blood into platelet rich plasma that will be injected into the knee. | Combination product | Platelet Rich Plasma (PRP) |
| PureBMCAlso: BC60-PUREThe PureBMC system will be used to collect and concentrate bone marrow aspirate into bone marrow concentrate that will be injected into the knee. | Combination product | Bone Marrow Concentrate (BMC) |
Primary outcome
Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) Measurements
Time frame: Baseline, 1 month, 3 months, 6 months, 9 months, and 12 months
Pain score measurements utilizing patient surveys; scale 0-20 with 20 being most pain and 0 being least pain
1 secondary outcome
Subjective International Knee Documentation Committee Subjective Score (IKDC)
Time frame: Baseline, 1 month, 3 months, 6 months, 9 months, and 12 months
Results and safety
Loading the posted results from ClinicalTrials.gov…
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 20 Apr 2025.
- Posted resultsParticipant flow, baseline, all outcome measures and adverse events.
- Background: PubMed 16385518Hootman JM, Helmick CG. Projections of US prevalence of arthritis and associated activity limitations. Arthritis Rheum. 2006 Jan;54(1):226-9. doi: 10.1002/art.21562.
- Background: PubMed 22513879Spakova T, Rosocha J, Lacko M, Harvanova D, Gharaibeh A. Treatment of knee joint osteoarthritis with autologous platelet-rich plasma in comparison with hyaluronic acid. Am J Phys Med Rehabil. 2012 May;91(5):411-7. doi: 10.1097/PHM.0b013e3182aab72.
- Background: PubMed 21831567Kon E, Mandelbaum B, Buda R, Filardo G, Delcogliano M, Timoncini A, Fornasari PM, Giannini S, Marcacci M. Platelet-rich plasma intra-articular injection versus hyaluronic acid viscosupplementation as treatments for cartilage pathology: from early degeneration to osteoarthritis. Arthroscopy. 2011 Nov;27(11):1490-501. doi: 10.1016/j.arthro.2011.05.011. Epub 2011 Aug 10.
- Background: PubMed 23104611Cerza F, Carni S, Carcangiu A, Di Vavo I, Schiavilla V, Pecora A, De Biasi G, Ciuffreda M. Comparison between hyaluronic acid and platelet-rich plasma, intra-articular infiltration in the treatment of gonarthrosis. Am J Sports Med. 2012 Dec;40(12):2822-7. doi: 10.1177/0363546512461902. Epub 2012 Oct 25.
- Background: PubMed 23299850Patel S, Dhillon MS, Aggarwal S, Marwaha N, Jain A. Treatment with platelet-rich plasma is more effective than placebo for knee osteoarthritis: a prospective, double-blind, randomized trial. Am J Sports Med. 2013 Feb;41(2):356-64. doi: 10.1177/0363546512471299. Epub 2013 Jan 8.
- Background: PubMed 22069972Li M, Zhang C, Ai Z, Yuan T, Feng Y, Jia W. [Therapeutic effectiveness of intra-knee-articular injection of platelet-rich plasma on knee articular cartilage degeneration]. Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi. 2011 Oct;25(10):1192-6. Chinese.
- Background: PubMed 23176112Filardo G, Kon E, Di Martino A, Di Matteo B, Merli ML, Cenacchi A, Fornasari PM, Marcacci M. Platelet-rich plasma vs hyaluronic acid to treat knee degenerative pathology: study design and preliminary results of a randomized controlled trial. BMC Musculoskelet Disord. 2012 Nov 23;13:229. doi: 10.1186/1471-2474-13-229.
- Background: PubMed 24075613Vaquerizo V, Plasencia MA, Arribas I, Seijas R, Padilla S, Orive G, Anitua E. Comparison of intra-articular injections of plasma rich in growth factors (PRGF-Endoret) versus Durolane hyaluronic acid in the treatment of patients with symptomatic osteoarthritis: a randomized controlled trial. Arthroscopy. 2013 Oct;29(10):1635-43. doi: 10.1016/j.arthro.2013.07.264.
- Background: PubMed 10023285Convery PN, Milligan KR, Quinn P, Scott K, Clarke RC. Low-dose intra-articular ketorolac for pain relief following arthroscopy of the knee joint. Anaesthesia. 1998 Nov;53(11):1125-9. doi: 10.1046/j.1365-2044.1998.00582.x.
- Background: PubMed 16418021Ng HP, Nordstrom U, Axelsson K, Perniola AD, Gustav E, Ryttberg L, Gupta A. Efficacy of intra-articular bupivacaine, ropivacaine, or a combination of ropivacaine, morphine, and ketorolac on postoperative pain relief after ambulatory arthroscopic knee surgery: a randomized double-blind study. Reg Anesth Pain Med. 2006 Jan-Feb;31(1):26-33. doi: 10.1016/j.rapm.2005.09.009.
- Background: PubMed 10338172Gupta A, Axelsson K, Allvin R, Liszka-Hackzell J, Rawal N, Althoff B, Augustini BG. Postoperative pain following knee arthroscopy: the effects of intra-articular ketorolac and/or morphine. Reg Anesth Pain Med. 1999 May-Jun;24(3):225-30. doi: 10.1016/s1098-7339(99)90132-3.
- Background: PubMed 23809450Beitzel K, McCarthy MB, Cote MP, Apostolakos J, Russell RP, Bradley J, ElAttrache NS, Romeo AA, Arciero RA, Mazzocca AD. The effect of ketorolac tromethamine, methylprednisolone, and platelet-rich plasma on human chondrocyte and tenocyte viability. Arthroscopy. 2013 Jul;29(7):1164-74. doi: 10.1016/j.arthro.2013.04.006.
- Individual participant dataSharing planned: No
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Joshua Hackel, MD principal investigator
Andrews Institute for Orthopaedic & Sports Medicine
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 4 study testing Pure PRP II and PureBMC in people with Knee Osteoarthritis, run by Andrews Research & Education Foundation at 1 site in United States.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 6 inclusion and 14 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 20 Apr 2025. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
What does this phase mean?
Phase 4 studies take place after a treatment is approved, to learn more about its long-term benefits and risks in everyday use.
Not every study follows the same path, and some studies (observational studies, device studies) have no phase.
Are results available for this study?
Yes. Results are posted in the registry (first posted 20 Apr 2025). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) Measurements (time frame: Baseline, 1 month, 3 months, 6 months, 9 months, and 12 months). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT03289416, which also lists 16 linked publications.
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 20 Apr 2025; AzTrials last refreshed its copy on 31 Oct 2026.