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Knee OsteoarthritisPhase 3MOTION-PNCT07219771

A Study to Evaluate the Efficacy and Safey of PTP-001 (MOTYS™) in Knee Osteoarthritis Patients (MOTION-P)

A Phase 3 study testing PTP-01 in people with Knee Osteoarthritis, run by Doron Therapeutics Inc. at 18 sites in 2 countries.

Recruiting

Looking for participants now. Contact the study team or a site below to ask about taking part.

Sites and contacts
Official record
Search all trials

Trial summary

This is a multicenter, prospective, randomized, double-blind, placebo-controlled, parallel-arm, Phase 3 study of intra-articular administration of PTP-001 (MOTYS) for the treatment of knee osteoarthritis. Read more about this study

Who is it for?
Ages 40 to 80 years
Conditions the study is for
Knee Osteoarthritis
What is being tested?
PTP-01
Type of treatment
Injection or infusion
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
300 participants
Where
18 sitesin 2 countries
Study dates
14 Oct 2025to 30 Dec 2027
Phase
Phase 3
Are there results?
Not yet: the study is under way

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 40 to 80 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Males and females aged 40 to 80 years.
  • Presenting with symptomatic knee OA with Kellgren-Lawrence (KL) radiographic classification of 2 or 3 (mild or moderate), as assessed by the central reading facility.
  • Primary source of pain throughout the body is due to OA in the target knee.
  • Target knee pain ≥ 20 and ≤ 40 out of 50 on the WOMAC® numerical rating scale (NRS) 3.1 pain questionnaire (sum of 5 questions) at Screening and Baseline.
  • Onset of symptomatic OA of the target knee was at least 6 months prior to Screening.
  • Insufficient, failed response, or intolerance to analgesics and / or non-steroidal anti-inflammatory drugs (NSAIDs), as reported by the participant.
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  • If female, must meet all of the following:
  • Not breast feeding,
  • Not planning to become pregnant during the study,
  • Must abstain from ova / egg donation during the study,
  • If of childbearing potential, must have a negative pregnancy test result within 72 hours prior to receiving the intra-articular injection, and must commit to the use of a highly effective form of birth control for at least 90 days after the injection.
  • Willing to use acetaminophen as the only oral rescue (as needed) analgesic medication for target knee pain during the study.
  • Willing to abstain from taking any illicit or unauthorized medications for treatment of OA or any other concurrent condition during the study.
  • Willing to comply with study visit schedule and post-injection restrictions.
  • Written informed consent is obtained from the participant.

Who cannot join

  • Participant is non-ambulatory (unable to walk > 50 feet / 15 meters without assistance).
  • Clinically severe obesity as defined by the National Institutes of Health (body mass index ≥ 40 kg/m2) at Screening and / or Baseline.
  • Contralateral (non-target) knee pain is >10 out of 50 on the WOMAC® NRS 3.1 pain questionnaire (sum of 5 questions) at Screening or at Baseline.
  • At Baseline, difference between the first Baseline and second Baseline WOMAC pain scores is > 3 for the target knee.
  • Contralateral (non-target) knee pain is experienced for ≥ 14 days in the month.
  • Use of any analgesia during the washout period (5 half-lives) at Screening or Baseline.
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  • Participation in any investigational study within 30 days (or 5 half-lives, whichever is longer) prior to Screening or planning to participate in any other investigational drug or device clinical trials within 30 days of study completion.
  • Currently requires use of a lower extremity prosthesis and / or a structural knee brace (ie, a knee brace that contains hardware).
  • Clinically significant effusion of the target knee at either the Screening or Baseline visits as determined by physical examination (eg, ballotable patella or positive bulge sign).
  • Note: Participants presenting with effusion may be enrolled in the study after undergoing knee aspiration to remove excess fluid in the target joint.
  • Clinical and/or radiographic evidence (other than that performed for Kellgren-Lawrence eligibility assessment) of severe (excessive) malalignment of the tibial-femoral axis, as assessed by the Investigator.
  • Presence of active infection in the target knee or systemic infection requiring treatment within the 3 months prior to Screening.
  • Clinical diagnosis of inflammatory arthritis (eg, rheumatoid arthritis, psoriatic arthritis, ankylosing spondylitis, systemic lupus erythematosus, etc.) established by clinical history, examination, or serology.
  • Participant is receiving, has received, or plans to receive any of the following therapies:
  • Prior administration of hyaluronic acid, extended-release corticosteroid (eg, Zilretta®), platelet-rich plasma (PRP), or stem cell therapies by intra-articular injection(s) of the target knee within 6 months prior to Screening.
  • Prior administration of corticosteroid by intra-articular injection of the target knee within 3 months prior to Screening or into any other joint within 30 days prior to Screening.
  • Current chronic systemic use of corticosteroids in doses exceeding the equivalent of 10 mg prednisolone daily.
  • Treatment with any investigational therapy (drug, device, or biologic) within 3 months prior to Screening or is planned for the duration of the study.
  • Treatment with immunosuppressive medication (not including mild transient immunosuppressants such as corticosteroids) or chemotherapy within the past 5 years.
  • Chronic use of narcotics or alcohol abuse within the past 6 months prior to Screening.
  • Surgery to either knee (including arthroscopy) within 6 months prior to receiving the intra-articular injection or planned surgery of either knee within 6 months after the injection.
  • Participant previously underwent arthroplasty (ie, full or partial knee replacement) of the target knee.
  • Presence of joint instability or complaints of locking, intermittent limitation in range of motion, or loose body sensation, suggestive of internal derangement of the knee (either extremity).
  • Diagnosis of lower extremity gout or pseudo-gout in the past 6 months prior to Screening.
  • History of, or current manifestation of, osteonecrosis of either knee.
  • Significant acute (within the past 3 months) injury to the target knee.
  • History of receiving a solid organ or hematologic transplant.
  • History of malignancy, radiotherapy, or chemotherapy for malignancy within the past 5 years, except for basal or squamous cell carcinoma of the skin.
  • History of prior radiation therapy of the target knee.
  • History of autoimmune disease affecting the musculoskeletal system.
  • Known (documented) history of acquired immune deficiency syndrome or human immunodeficiency virus (HIV).
  • Any condition causing pain in or around the target knee (eg, radiating pain or pain in another region of the ipsilateral lower extremity) that may interfere with assessment(s) of the target knee.
  • Other chronic pain anywhere in the body that requires the chronic use of analgesic medications, such as knee OA of the contralateral (non-target) knee, fibromyalgia, tendonitis, plantar fasciitis, neuropathic pain, lower back pain, etc.
  • Known presence of any concurrent medical condition (eg, hematologic renal, hepatic, cardiac, or coagulation abnormalities) or other factors that in the Investigator's judgment would interfere with the required study assessments and study participation.
  • Participant is involved in litigation (eg, worker's compensation) for a medical condition or injury at any anatomical site.

Trial locations and contacts

18 sites in 2 countries. Contact the study team or a site near you to ask about taking part.

18 sites in 2 countries

United States9 sites, 8 recruiting
  • Lehigh Center for Clinical Research

    Allentown, Pennsylvania, 18104

    Withdrawn
  • Central Research Associates, LLC dba Flourish Research

    Birmingham, Alabama, 35205

    Baleigh Baker, 659-209-5575, bbaker@flourishresearch.com

    Kaylee Harris, 659-209-5575, kaylee.harris@flourishresearch.com

    Recruiting
  • Chicago Clinical Research Institute, Inc.

    Chicago, Illinois, 60607

    Saad Syed, MD, 312-791-3241 ext. 313, ssyed@ccrii.us

    Dennis Levinson, MD

    Recruiting
  • Horizon Clinical Research

    La Mesa, California, 91942

    Tiffany King, 619-456-6012 ext. 1, tiffany@horizontrials.com

    Scott Hacker, MD

    Recruiting
  • Coastal Carolina Research Center, LLD

    North Charleston, South Carolina, 29405

    Mary Love, 312-878-9477, recruitment@alcanzaclinical.com

    Shailesh Patel, MD

    Recruiting
  • JBR Clinical Research, LLC

    Salt Lake City, Utah, 84107

    Jenny Hunt, 801-261-2000, j.hunt@cenexel.com

    Mike McCarthy, 801-261-2000, m.mcarthy@cenexel.com

    Recruiting
  • Tucson Orthopaedic Institute

    Tucson, Arizona, 85712

    Nebojsa Skrepnik, 520-404-0276, nskrepnik@tucsonortho.com

    Nebojsa Skrepnik

    Recruiting
  • Focus Clinical Research

    West Hills, California, 91307

    Carlos Uribe, 818-253-8966, curibe@allianceclinicalnetwork.com

    Guillermo Acosta, 818-253-8966, gacosta@allianceclinicalnetwork.com

    Recruiting
  • Conquest Research, LLC

    Winter Park, Florida, 32789

    Laura Kelly, 407-916-0060, Laura.Kelly@conquestresearch.com

    Aanand Patel, MD

    Recruiting

Other trials in United States

Australia9 sites, 3 recruiting
  • University of the Sunshine Coast Clinical Trials, Birtinya

    Birtinya, Queensland, 4575

    Active, not recruiting
  • Emeritus Research Sydney

    Botany, New South Wales, 2019

    Terminated
  • Genesis Research Services

    Broadmeadow, New South Wales, 2292

    Emily Allard, 61 2 4985 1860, emily@genesisresearchservices.com

    Deon Smith

    Recruiting
  • University of the Sunshine Coast Clinical Trials, Maroochydore

    Maroochydore, Queensland, 4566

    Stephanie Wallace, 61 7 5456 3797, swallac1@usc.edu.au

    Stephanie Wallace

    Recruiting
  • University of the Sunshine Coast Clinical Trials, Morayfield

    Morayfield, Queensland, 4506

    Active, not recruiting
  • Momentum Clinical Research Sunshine

    St Albans, Victoria, 3021

    Site Manager, 61 3 9125 0799, sunshine@momcr.com

    Roy Rasalam

    Recruiting
  • Royal North Shore Hospital

    St Leonards, New South Wales, 2065

    Active, not recruiting
  • Momentum Clinical Research Taringa

    Taringa, Queensland, 4068

    Active, not recruiting
  • Momentum Clinical Research Wellers Hill

    Tarragindi, Queensland, 4121

    Terminated

Other trials in Australia

About this study

Official title: A Multicenter, Prospective, Randomized, Double-Blind, Placebo-Controlled, Parallel-Arm, Phase 3 Study of Intra-Articular Administration of an Allogeneic Human Placental Tissue Particulate (PTP-001) for the Treatment of Knee Osteoarthritis

This is a multicenter, prospective, randomized, double-blind, placebo-controlled, parallel-arm, Phase 3 study of intra-articular administration of PTP-001 (MOTYS) for the treatment of knee osteoarthritis.

The purpose of the trial is to evaluate the efficacy, safety, and tolerability of a single intra-articular injection of PTP-001 compared to placebo over a 52-week period in participants with radiographic and symptomatic knee OA.

Read the detailed description

The participants will be randomized in a 1:1 ratio to receive one of either PTP-001 or placebo injection. Each participant will be administered a single dose of investigational product (IP) (active or placebo) on Day 1.

The trial will consist of a Screening period (up to 28 days prior to treatment), a treatment phase (1 day) and a follow-up phase (12 months following treatment). A total of at least 260 participants are planned to be randomized (130 participants/group).

Being tested
PTP-01, Placebo control / saline vehicle
Keywords
Osteoarthritis, Knee Osteoarthritis
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.

  • PTP-01Biological

    Also called MOTYS™, allogeneic human placental tissue particulate

    Allogeneic human placental tissue particulate (PTP-001) is administered as a single intra-articular injection to the target knee after resuspension with saline.

  • Placebo control / saline vehicleOther

    Also called Normal saline, Physiological saline

    The placebo control, physiological saline (0.9% sodium chloride injection, USP), is administered as an intra-articular injection to the target knee.

Study groups in NCT07219771
Study groupRoleWhat they receive
PTP-001 200 mgExperimentalA single intra-articular injection in the target knee of PTP-001 200 mg
Receives: Biological: PTP-01
Placebo / saline vehiclePlacebo comparatorA single intra-articular injection in the target knee of 4 mL of placebo control (0.9% sodium chloride injection, USP)
Receives: Other: Placebo control / saline vehicle

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Proportion of participants meeting strict responder criteria for improvement in knee function.

    To qualify as a "strict responder for improvement in knee function", an improvement of ≥ 50% in WOMAC Function subscale score is required, with an absolute change ≥ 20 points in the score.

    Measured: 6 months

  2. Proportion of participants meeting strict responder criteria for improvement in knee pain.

    To qualify as a "strict responder for improvement in knee pain", an improvement of ≥ 50% in WOMAC Pain subscale score is required, with an absolute change ≥ 20 points in the score.

    Measured: 6 months

Secondary outcomes (5)
  1. Proportion of participants meeting strict responder criteria for improvement in knee function.

    Measured: 9 months and 12 months

  2. Proportion of participants meeting strict responder criteria for improvement in knee pain.

    Measured: 9 months and 12 months

  3. Change from pretreatment Baseline in participant self-reported assessment of OA by PGA-OA score.

    Measured: 6 months, 9 months, and 12 months

  4. Change from pretreatment Baseline in participant self-reported function of the treated knee as assessed by WOMAC Function subscale score.

    Measured: 6 months, 9 months, and 12 months

  5. Change from pretreatment Baseline in participant self-reported pain at the treated knee as assessed by WOMAC Pain subscale score.

    Measured: 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.

  1. First posted22 Oct 2025
  2. Study start14 Oct 2025
  3. Primary completion30 Jun 2027 (estimated)
  4. Study completion30 Dec 2027 (estimated)

Resources

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 3
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Double blind
Who is masked
Participant, Investigator
Enrolment
300 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT07219771
Sponsor's protocol ID
KOA-25-03
Acronym
MOTION-P
Status last verified
Oct 2026
First submitted
21 Oct 2025
Last updated
16 Oct 2026
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
Yes
FDA-regulated device
No
Individual data sharing
No

Publications

  • Flannery CR, Buddin KE, Begum L, Nasert MA, Catalfamo B, Semler EJ, Fortier LA. Composition and Bioactivity of a Placental Tissue Particulate (PTP-001) Indicate Greater Potential than Platelet-Rich Plasma for the Treatment of Osteoarthritis. Cartilage. 2023 Dec;14(4):467-472. doi: 10.1177/19476035231159748. Epub 2023 Mar 13.

    PubMed 36912174
  • Flannery CR, Seaman SA, Buddin KE, Nasert MA, Semler EJ, Kelley KL, Long M, Favret J, Pavesio A, Loeser RF. 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. Osteoarthritis Cartilage. 2021 Aug;29(8):1203-1212. doi: 10.1016/j.joca.2021.03.022. Epub 2021 May 20.

    PubMed 34023528

Questions about this trial

What is this clinical trial studying?

A Phase 3 study testing PTP-01 in people with Knee Osteoarthritis, run by Doron Therapeutics Inc. at 18 sites in 2 countries.

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 15 inclusion and 35 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: looking for participants now, as of the sponsor's last update on 16 Oct 2026. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 18 sites in United States, Australia. 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. Some participants in this study may receive a placebo. 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 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

This study is still under way. Results are not available in the source record yet.

How can a doctor refer a patient or contact the research team?

Contact Mary Kathryn Kottke (919-355-4630, mk.kottke@dorontherapeutics.com), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Proportion of participants meeting strict responder criteria for improvement in knee function. (time frame: 6 months). The study lists 2 primary outcomes in all. 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 NCT07219771, which also lists 2 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 16 Oct 2026.

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