Efficacy and safety of Synolis VA for hip osteoarthritis

6-month Evaluation of the Efficacy and Safety of Synolis VA 80/160 in the Treatment of Symptomatic Hip Osteoarthritis

Not applicable Interventional Aptissen SA · NCT05829733

This study is testing if a new treatment called Synolis VA can help people with hip osteoarthritis feel less pain and move better over six months.

Quick facts

PhaseNot applicable
Study typeInterventional
Enrollment70 (estimated)
Ages18 Years and up
SexAll
SponsorAptissen SA Industry-sponsored
Locations3 sites (Belfort and 2 other locations)
Trial IDNCT05829733 on ClinicalTrials.gov

What this trial studies

This multicenter study evaluates the efficacy and safety of Synolis VA 80/160 in patients with hip osteoarthritis over a 6-month period. Participants will receive the treatment and be monitored for improvements in hip pain and function, as well as any potential side effects. The study aims to determine whether this hyaluronic acid-based intervention can provide relief for patients who have not responded adequately to other treatments.

Who should consider this trial

Good fit: Ideal candidates are adults over 18 with a diagnosis of hip osteoarthritis who have not responded to standard analgesics or NSAIDs.

Not a fit: Patients who are pregnant, have had recent infections in the affected joint, or are scheduled for hip surgery may not benefit from this study.

Why it matters

Potential benefit: If successful, this treatment could significantly improve pain management and quality of life for patients suffering from hip osteoarthritis.

How similar studies have performed: Previous studies on hyaluronic acid treatments for osteoarthritis have shown varying degrees of success, indicating potential but also the need for further investigation.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Patient over 18 years of age,
* Patient with osteoarthritis of the hip. The diagnosis is based on the following criteria:
* Treated hip pain: Oxford score ≥ 21/60,
* Kellgren-Lawrence positive X-ray stage: II - III (inclusion radiograph dated no more than 6 months before the inclusion visit),
* Symptoms related to osteoarthritis of the hip for at least 2 months,
* Failure of treatments (i.e., inadequate or ineffective response to analgesics and/or NSAIDs or intolerance to NSAIDs or low-grade opioids (leaving an OXFORD score ≥ 21/60),
* Informed consent form signed by the patient,
* The patient has never had a visco supplement injection or corticosteroid injection in the hip to be treated (or more than 6 months old).

Exclusion Criteria:

* Pregnancy,
* Participation in another clinical trial,
* Skin lesion near the injection site,
* Recent or old infection of the affected joint,
* Patient with a programmed arthroplasty,
* Patient with a pathology that makes decision-making impossible,
* The patient must not have undergone non-prosthetic hip-conserving surgery such as osteotomy or arthroscopy less than 12 months old.

Where this trial is running

Belfort and 2 other locations

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Osteoarthritis, HipOsteoarthritisHip osteoarthritisHyaluronic acid
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.