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CompletedPhase 1/2

A Study Evaluating the Safety, Tolerability, and Range of Biologically Active Doses of ICM-203 in Mild to Moderate Knee Osteoarthritis

Key facts

Who runs it
ICM Biotech Australia Pty Ltd.
Where
Australia2 sites in 1 countryChoose a country to see its sites
Trial code
Status
Completed
Phase
Phase 1/2
People taking part
12 people enrolled
Started
17 Mar 2022
Ended
20 Feb 2026
Type of study
Interventional, 3 groups
Treatments tested
  • ICM-203
  • Placebo
Record updated
3 September 2026

Who can take part

Age
50 years to 80 years
Sex
Women and men
Healthy volunteers
Cannot take part

The registry criteria, word for word

Show all 12 criteriaShow less

Who can take part

  • Body Mass Index (BMI) of 18.0 to 40.0 kg/m2, inclusive, at the time of screening
  • Kellgren-Lawrence grade 2 or grade 3 OA of target knee
  • Target knee pain between 4 and 9, inclusive, on an NRS ranging from 0 (no pain) to 10 (worst pain imaginable)
  • KOOS function in daily living score >25, a measure of knee function ranging from 0 (extreme problems) to 100 (no problems)
  • A stable treatment regimen for symptomatic relief of OA, including NSAIDs, for 4 weeks prior to screening

Who cannot take part

  • Injection of steroid, hyaluronate or other agent, into the target knee less than 90 days prior to day 1
  • Surgery on the target knee within 180 days prior to day 1
  • Total knee arthroplasty or other knee surgery planned in the next 12 months
  • Active joint infection or other concurrent medical (diabetes, uncontrolled hypertension, severe osteoporosis, glaucoma) or psychiatric condition that, in the opinion of the Investigator, would make the subject unsuitable for the study
  • History of rheumatoid arthritis, psoriatic arthritis, gout, pseudogout, autoimmune OA, chondrocalcinosis, hemochromatosis, villonodular synovitis, and synovial chondromatosis or other disorder that in the opinion of the Investigator could cause inflammation of the knee
  • Major injury to the target knee, such as torn ligament or severe sprain, within 12 months of screening
  • Disability so severe that the subject cannot comply with the study requirements, including knee symptoms that result in significant difficulty or inability to walk

This trial has no sites in United States.

It has sites in one country. Choose a country to see its sites.

About the trial

What the trial wants to find out

The purpose of this study is to determine the safety, tolerability, and activity of ICM-203, a recombinant adeno-associated viral (AAV) vector that expresses a therapeutic gene that promotes cartilage formation, reduces joint inflammation and pain, as well as improves joint physical function, by injecting escalating doses of ICM-203 or matching placebo into the knee of subjects with mild to moderate knee osteoarthritis (OA).

The 3 groups in the trial

  • Group 1: ICM-203 (Low dose) vs PlaceboTreatment being tested

    8 subjects will be randomized to receive a single intra-articular injection of ICM-203 at 6x10e12 vg (n=6) or placebo (n=2) into the target knee at Day 1

    Treatment: ICM-203 and Placebo

  • Group 2: ICM-203 (Medium dose) vs PlaceboTreatment being tested

    4 subjects will be randomized to receive a single intra-articular injection of ICM-203 at 2x10e13 vg (n=3) or placebo (n=1) into the target knee at Day 1

    Treatment: ICM-203 and Placebo

  • Group 3: ICM-203 (High dose) vs Placebo (Optional)Treatment being tested

    4 subjects will be randomized to receive a single intra-articular injection of ICM-203 at 6x10e13 vg (n=3) or placebo (n=1) into the target knee at Day 1

    Treatment: ICM-203 and Placebo

Data and sources

Registry record
Listed on ClinicalTrials.gov.
Official title
A Phase 1/2a, Double-Blind, Placebo-Controlled Single Dose Escalation Study of Intra-Articular ICM 203 in Subjects With Kellgren-Lawrence Grade 2 or Grade 3 Osteoarthritis of the Knee
Record updated
3 September 2026