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Open-label trial to check the safety and tolerability of RTX-GRT7039 injections for pain associated with osteoarthritis of the knee.

A single-arm, open-label, Phase III trial to evaluate the safety and tolerability of intra-articular injections of RTX-GRT7039 in subjects with moderate to severe pain associated with osteoarthritis of the knee.

Status
Active, not recruiting
Phases
Phase 3
Study type
Interventional
Source
JPRN
Registry ID
JPRN-jRCT2031230069
Enrollment
30
Registered
2023-05-14
Start date
2023-07-18
Completion date
Unknown
Last updated
2026-06-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Moderate to severe pain associated with osteoarthritis of the knee

Interventions

Sponsors

Lange Bernd, MD, MSc, Medical Lead
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: - >=18 years of age at the screening visit. - Body Mass Index (BMI)=< 40.0 kg/m2. - Diagnosis of osteoarthritis of the knee based on American College of Rheumatology criteria and functional capacity class of I-III. - Moderate to severepain due to osteoarthritis of the knee. - Documented history indicating that subject has insufficient pain relief with optimal standard of care (SoC). - The investigator does not consider that any additional benefit can reasonably be expected from further adjustments to the patient's pain treatment.

Exclusion criteria

Exclusion criteria: - The subject had an intra-articular injection of either corticosteroid or intra-articular visco-supplementation (i.e., hyaluronic acid) into the index knee within one month. - The subject had an injection of platelet-rich plasma into the index knee within one month. - The subject applied topical capsaicin on the index knee within 3months. - Pre-existing rapidly progressing osteoarthritis (RPOA) Type I or Type II, osteonecrosis, subchondral insufficiency fracture, atrophic osteoarthritis, or the subject has knee pain attributable to disease other than osteoarthritis. - Other conditions that could confound discrimination of pain assessment in the index knee. - Clinically significant disease(s) or condition(s) that may affect efficacy or safety assessments, or any other reason which, in the investigator's opinion, may preclude the subject's participation in the full duration of the trial. - History of severe allergic or anaphylactic reactions. - History of significant trauma or surgery, or surgery planned during the trial period, related to the knee.

Design outcomes

Primary

MeasureTime frame
1) Incidence of treatment-emergent adverse events(TETAEs). Incidence of TETAEs leading to discontinuation. [Time Frame: From baseline (assessment at Visit 2) to Visit 8 or 9 (end of trial)]

Secondary

MeasureTime frame
1) Incidence of TEAEs representing structural changes of the knee joint as visualized by the imaging methods (X-ray and/or magnetic resonance imaging [MRI]. [Time frame: From baseline (assessment at Visit 2) to Visit 8 or 9 (end of trial)] 2) Change in the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) physical function and pain subscale score for the index and the non-index (where applicable) knee. [Time Frame: From baseline (assessment at Visit 2) to Visit 5] 3) Change in QoL as assessed by questionnaires EQ-5D-5L and SF-36. [Time Frame: From baseline (assessment at Visit 2) to Visit 5]

Countries

Bulgaria, Colombia, Japan, Poland, Romania, South Africa, United Kingdom, United States

Contacts

Public ContactClinical trial contact

ICON Clinical Research GK

Japan-Chiken@iconplc.com+81-6-4560-2001

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026