Clinical trial NCT04632966: Safety Study of PTP-001 for Treating Knee Osteoarthritis
Official title: A Prospective, Open-Label, Dose-Escalation Phase 1 Study of Intra-Articular Administration of an Allogeneic Human Placental Tissue Particulate (PTP-001) for the Treatment of Knee Osteoarthritis
Study type: INTERVENTIONAL
Overall status: UNKNOWN
Phase: PHASE1
Conditions: Knee Osteoarthritis
Lead sponsor: Bioventus LLC
Sponsor class: INDUSTRY
First posted: 2020-11-17
Enrollment: 20
Sex: ALL
Minimum age (years): 40
Maximum age (years): 80
Standard ages: ADULT
OLDER_ADULT
Accepts healthy volunteers: no
Allocation: NON_RANDOMIZED
Intervention model: SEQUENTIAL
Intervention model description: Open-label, dose-escalation
Primary purpose: TREATMENT

Brief summary: Evaluation of safety, tolerability, and efficacy of a single intra-articular (IA) injection of PTP-001, an allogeneic placental tissue particulate, in individuals with knee osteoarthritis (OA).

Detailed description: This open-label, dose-escalation study is expected to enroll 20 participants, 40-80 years of age and test two doses (low and high dose) of PTP-001, an allogeneic placental tissue particulate, in two unique cohorts of 10 participants each. Each participant will receive a single intra-articular (IA) injection of PTP-001. Following the completion of the first cohort in which 10 participants (Kellgren-Lawrence Grade 2 or 3 knee OA) will be treated with the low dose of PTP-001, safety data will be reviewed by an independent Data and Safety Monitoring Board (DSMB).

Eligibility criteria: Inclusion Criteria:

* Written consent to participate in the study
* Male or female, aged 40 to 80 years
* Symptomatic knee OA with Kellgren-Lawrence radiographic classification of 2 or 3
* Non-responsive after at least 3 months of conservative therapy for knee OA
* Females of childbearing potential must have negative pregnancy test result prior to treatment and must commit to highly effective methods of contraception for at least 6 months after treatment
* Willingness to report oral analgesic treatment used for knee pain and to discontinue analgesic treatment for knee pain in 24 hours prior to each study visit
* Willingness to limit use of pain rescue medication to oral acetaminophen for management of painful knee OA flare

Exclusion Criteria:

* Body mass index (BMI) ≥ 40 kg/m2 or BMI ≥ 35 kg/m2 with condition that warrants weight loss surgery
* Presence of active infection of index knee or systemic infection requiring treatment within 3 months of Screening
* Administration of IA injection within 3 months of Screening
* Significant acute injury to index knee within 3 months of Screening
* Surgery to index knee within 6 months of Screening or planned surgery to index knee within 6 months after Screening
* Unstable index knee joint
* History of radiation therapy of index knee
* Known vascular or neurological disorder affecting the index knee
* Osteonecrosis of either knee
* Clinical diagnosis of inflammatory arthritis
* Clinical diagnosis of autoimmune disease affecting the musculoskeletal system
* Use of any other investigational therapy within 3 months of Screening or planned for the duration of the study
* Current anti-coagulant use
* History of receiving a solid organ or hematologic transplant
* History of malignancy or radiotherapy within 5 years of Screening, except for basal or squamous cell carcinoma of the skin
* Use of immunosuppressive or chemotherapeutic agents within 5 years of Screening
* Known allergy to local anesthetics or allograft tissues
* Known history of hepatitis
* Known history of thrombotic or thromboembolic phenomena.
* Known history of primary or secondary immunodeficiency disorders
* Presence of concurrent medical condition that, in the investigator's judgement, could compromise participant safety or interfere with the required study assessments and study participation.

Note: Other protocol defined inclusion/exclusion criteria apply.

Primary outcomes:
measure: Incidence of local and systemic treatment emergent adverse events (AEs) and incidence of abnormal laboratory and immunogenicity panels
timeFrame: Baseline to Week 52
Secondary outcomes:
measure: Western Ontario and McMaster University (WOMAC) Pain Responder Rate
timeFrame: Week 26 and Week 52
measure: WOMAC Physical Function Responder Rate
timeFrame: Week 26 and Week 52
measure: Change from baseline in pain of the index knee, by evaluating the WOMAC Pain subscale score (the possible total score ranging from 0-50 for pain)
timeFrame: Baseline to Week 52
measure: Change from baseline in physical function of the index knee, by evaluating the WOMAC Physical Function subscale score (the possible total score ranging from 0-170 for Physical Function)
timeFrame: Baseline to Week 52
measure: Change from baseline in patient global assessment of OA, by assessing the participants assessment of how they are doing considering arthritis in index knee (the possible answers include "Very Good", "Good", "Acceptable", "Poor", "Very Poor"
timeFrame: Baseline to Week 52
measure: Change from baseline in health-related quality of life, by assessing the items from the Short Form 36 (SF-36) survey
timeFrame: Baseline to Week 52
Other outcomes:
measure: Change from baseline in biochemical markers (CTX-II & PRO-C2)
timeFrame: Baseline to Week 52
measure: Change from baseline in joint space width of the index knee, assessed radiographically (OARSI radiographic scoring)
timeFrame: Baseline to Week 52
Locations:
city: Durham
country: United States
facility: James R. Urbaniak, MD, Duke Sports Science Institute
state: North Carolina
city: North Charleston
country: United States
facility: Coastal Carolina Research Center
state: South Carolina
Study officials:
affiliation: James R. Urbaniak, MD, Duke Sports Science Institute
name: Annunziato Amendola, MD
role: PRINCIPAL_INVESTIGATOR
References:
citation: Flannery CR, Seaman SA, Buddin KE, et al. Characterization and preclinical efficacy of PTP-001, a novel human tissue biologic in development for the treatment of OA. Osteoarthritis Cartilage. 2020 Apr;28(Supplement 1):S487-S489. doi: 10.1016/j.joca.2020.02.763
citation: 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.