Phase 3 Study of a Single Injection of PTP-001 Compared to Placebo for Treating Knee Osteoarthritis in Adults Aged 40 to 80
Led by Doron Therapeutics Inc. · Updated on 2026-04-29
260
Participants Needed
17
Research Sites
26 weeks
Total Duration
AI-Summary
What this Trial Is About
Researchers are evaluating the use of PTP-001 MOTYS, an allogeneic human placental tissue particulate, for treating knee osteoarthritis OA. This Phase 3, multicenter, randomized, double-blind, placebo-controlled trial aims to assess the safety, tolerability, and effectiveness of a single injection of PTP-001 compared to placebo over a 52-week period in adults aged 40 to 80 with symptomatic and radiographically confirmed knee OA.
Participants will be randomly assigned to receive one injection into the target knee of either 200 mg PTP-001 or 4 mL of placebo saline solution. The study includes a screening period lasting up to 28 days before treatment, a one-day treatment phase when the injection occurs, and a follow-up phase of 12 months to monitor outcomes and safety. Approximately 260 participants will be enrolled, with 130 in each treatment group.
During the study, participants will undergo assessments at multiple time points, including evaluations of knee pain and function using standardized scales such as WOMAC and patient global assessments. The main outcomes focus on the proportion of participants showing strict improvement in knee pain and function at 6 months, with additional measurements at 9 and 12 months. Safety and tolerability will also be monitored throughout the follow-up period.
CONDITIONS
Brief Title
A Study to Evaluate the Efficacy and Safey of PTP-001 (MOTYS™) in Knee Osteoarthritis Patients
Research Team
M
Mary Kathryn Kottke
Not the Right Trial for You?
Explore thousands of other clinical trials that might be a better match. Sign up to get personalized trial recommendations delivered to your inbox.
This table compares participation in this trial with other options available for this condition. The information is drawn from published research and the trial’s study details and is provided for educational purposes only.
Factors
PTP‑001 injection
Placebo injection
What the treatment is
An investigational biologic (PTP‑001), composed of allogeneic human placental tissue particulate, administered as a single intra‑articular injection into the target knee
A saline vehicle (sterile 0.9% sodium chloride) given as a single intra‑articular injection into the target knee
Role in the trial
Active intervention being tested for efficacy and safety
Placebo control used to assess effects of the investigational treatment
Purpose
To evaluate efficacy in improving knee pain and function in symptomatic osteoarthritis
To serve as placebo comparison for measuring response to investigational treatment
Administration method
Single intra‑articular injection after resuspension of placental tissue particulate
Single intra‑articular injection of physiological saline vehicle
Evidence status beyond this trial
Preclinical data show PTP‑001 reduces inflammation and cartilage degeneration in animal models and has bioactive potential beyond platelet‑rich plasma in lab analysis
Saline injection serves as placebo and has no established therapeutic benefit in osteoarthritis
Limitations
Efficacy and safety in humans not yet established — only preclinical evidence exists
Placebo response may be strong in intra‑articular trials for knee OA and can mask true treatment effects
Disclaimer: This comparison is created with the help of artificial intelligence(AI) and may contain errors or missing information. It is not medical advice and does not mean one option is better or safer than another. Clinical trials are still being studied, and joining a trial is your choice. Please consult your healthcare professional before making any decisions.
Who Can Participate
Age: 40Years - 80Years
All Genders
Eligibility Criteria
You may qualify if you...
Males and females aged 40 to 80 years
Symptomatic knee osteoarthritis with mild or moderate radiographic severity (Kellgren-Lawrence grade 2 or 3)
Main source of pain is knee osteoarthritis in the target knee
Target knee pain score between 20 and 40 out of 50 on WOMAC pain scale at screening and baseline
Symptoms in the target knee present for at least 6 months before screening
Insufficient response, intolerance, or failure of analgesics or NSAIDs
If female of childbearing potential, must not be breastfeeding, must not plan pregnancy, must abstain from egg donation, have negative pregnancy test before injection, and use effective birth control for 90 days after injection
Willing to use acetaminophen only as rescue medication for knee pain during study
Willing to avoid unauthorized medications for osteoarthritis or other conditions during study
Willing to follow study visit schedule and post-injection restrictions
Provide written informed consent
You will not qualify if you...
Unable to walk more than 50 feet without assistance
Severe obesity with body mass index 40 kg/m2 or higher
Contralateral knee pain score 10 or higher on WOMAC pain scale at screening or baseline
Large difference (3 points or more) between baseline pain scores for target knee
Contralateral knee pain lasting 14 or more days in the month
Use of analgesics during washout period prior to screening or baseline
Participation in other investigational studies within 30 days before screening or planned participation within 30 days after study completion
Current use of lower extremity prosthesis or structural knee brace with hardware
Significant fluid buildup (effusion) in target knee unless drained before enrollment
Severe malalignment of knee joint
Active infection in target knee or systemic infection requiring treatment within 3 months prior to screening
Diagnosed inflammatory arthritis such as rheumatoid arthritis or lupus
Prior intra-articular injections (hyaluronic acid, corticosteroids, PRP, stem cells) within specified time frames
Chronic systemic corticosteroid use exceeding equivalent of 10 mg prednisolone daily
Immunosuppressive medication or chemotherapy within past 5 years
Chronic narcotic use or alcohol abuse within past 6 months
Recent surgery to either knee within 6 months before or planned within 6 months after injection
Previous knee replacement of target knee
Joint instability or symptoms suggesting internal knee problems
Diagnosis of gout or pseudo-gout within past 6 months
History or current osteonecrosis of either knee
Recent acute injury to target knee within 3 months
History of organ or hematologic transplant
History of cancer treatment within past 5 years except certain skin cancers
Prior radiation therapy of target knee
Autoimmune diseases affecting muscles or joints
Known HIV/AIDS
Other conditions causing pain around the target knee that could interfere with assessments
Other chronic pain conditions requiring chronic analgesics
Medical conditions that could interfere with study participation
Involvement in litigation related to medical conditions or injury
Your Study Journey
Screening
Duration - Up to 4 weeks
Participants are screened for eligibility to participate in the trial.
1 visit (in-person) for screening and enrollment
Treatment
Duration - 1 day
Participants receive a single intra-articular injection of either PTP-001 or placebo in the target knee on Day 1.
1 treatment visit (in-person)
Follow-up
Duration - 12 months
Participants are monitored for safety and efficacy outcomes over 12 months following treatment.
Scheduled follow-up visits over 12 months to assess knee function and pain
How is the study designed?
Study Type
INTERVENTIONAL
Masking
DOUBLE
Allocation
RANDOMIZED
Model
PARALLEL
Primary Purpose
TREATMENT
Number of Arms
2
Similar Trials
High-Intensity Pulsed Electromagnetic Field Therapy for Pain Relief and Strengthening in Older Adults with Knee Osteoarthritis
Study Comparing Mulligan Mobilization Technique and Proprioceptive Exercises for Adults 40 and Older with Mild to Moderate Knee Osteoarthritis
Study of BBM-A101 Gene Therapy to Treat Moderate Knee Osteoarthritis in Adults Aged 40 to 75
A Randomized Double-Blind Study Comparing the Safety and Effectiveness of the Intra-Articular Injectable Device ALLOHEAL to Conjuran for Treating Knee Osteoarthritis in Adults Aged 40 to 80
Multi-Center Study Testing Special Shoe Insoles to Help Knee Osteoarthritis in Adults 50 and Older
Extension Study of FURESTEM-OA-Kit Injection Safety and Effectiveness
in Knee Osteoarthritis Patients Previously Given Placebo in the K0701 Trial
Study of Safety and Performance of Zimmer Persona Personalized Knee System With Canary canturioTM Tibial Extension After Knee Replacement Surgery
Pilot Study of rTMS Combined With Tai Chi for Treating Knee Osteoarthritis Pain and Depression in Adults Aged 50 to 95
Phase 3 Study of a Single Injection of PTP-001 Compared to Placebo for Treating Knee Osteoarthritis in Adults Aged 40 to 80
Comparing Two Regional Anesthesia Methods for Pain Relief After Total Knee Replacement in Adults 65 and Older
Adductor Canal Block With Sacral Erector Spinae Plane Block Versus Adductor Canal Block With iPACK Block
Have more questions? Get in touch with our team for quick support
Published Research Related To This Trial
Composition and Bioactivity of a Placental Tissue Particulate (PTP-001) Indicate Greater Potential than Platelet-Rich Plasma for the Treatment of Osteoarthritis.
A novel placental tissue biologic, PTP-001, inhibits inflammatory and catabolic responses in vitro and prevents pain and cartilage degeneration in a rat model of osteoarthritis.