Clinical trial Recruiting at 2 sites Interventional Ages 18 and up

Tail Fat Application for Knee Osteoarthritis Pain and Stiffness

Official title: The Effect of Tail Fat Application on Joint Pain, Joint Stiffness, and Daily Living Activities in Patients With Gonarthrosis

Run by Inonu University · NCT07867405 · Data updated 2026-11-12

This study tests whether applying sheep tail fat to the knee helps reduce pain and stiffness and improves daily activity in adults with gonarthrosis.

Quick facts

Study typeInterventional
Ages18 Years and up
SexAll
Enrollment66 (estimated)
SponsorInonu University
Academic / other
Locations2 sites (Bitlis and 1 other locations)
StatusRecruiting
StartedMay 12, 2026
Main results expectedJanuary 31, 2027
Study endsJanuary 31, 2027
Registry record updatedOctober 9, 2026
Trial IDNCT07867405 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Adults with knee osteoarthritis (gonarthrosis) who have moderate pain (VAS > 4), at least 3 months of knee pain, and no allergy to sheep tail fat, able to apply the product as instructed, and able to communicate in Turkish.

Probably not a fit

Patients with severe knee disability, recent knee surgery within the past year, active skin infection or wound at the knee, peripheral vascular disease, or cognitive impairments may not benefit or participate.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This randomized controlled study investigates the effects of applying sheep tail fat, in addition to standard medical care, on knee pain, stiffness, and daily living activities in patients with gonarthrosis. Eligible adults with a knee osteoarthritis diagnosis and moderate pain will be randomized to receive the fat application plus standard treatment or standard treatment alone. The intervention leverages bioactive components found in sheep tail fat that may have anti-inflammatory and chondroprotective properties. Outcomes include changes in pain scores, stiffness, and functional measures over a defined follow-up period. The study is conducted at Bitlis State Hospital and Bitlis Tatvan State Hospital in Turkey, led by Inonu University.

Why it matters

Potential benefit: If successful, patients may experience reduced knee pain and stiffness and improved ability to perform daily activities.

How similar studies have gone: Previous literature suggests potential anti-inflammatory and cartilage-protective effects of components similar to those in sheep tail fat, but direct randomized trials in knee OA are limited, making this approach relatively novel.

Who can join: the full rules

Show full inclusion / exclusion criteria
\*\*Inclusion Criteria\*\*

* Patients diagnosed with gonarthrosis by a physician.
* Patients with a VAS score above 4.
* Individuals who have experienced pain related to knee osteoarthritis for at least the last 3 months.
* Participants aged 18 years and older.
* Individuals without an allergy to sheep tail fat or other animal products.
* Individuals who can communicate in Turkish and understand written and verbal instructions.
* Individuals who can apply the sheep tail fat according to the instructions.
* Individuals who agree to participate in the study.

\*\*Exclusion Criteria\*\*

* Individuals with severe physical disability or mental/psychological problems in the knee region.
* Individuals with intellectual or cognitive limitations.
* Individuals who have undergone knee surgery within the last year.
* Individuals with peripheral vascular disease.
* Individuals with infection, wound, cellulitis, or active skin disease in the knee region.
* Individuals who have experienced knee trauma or received an intra-articular steroid injection within the last six months.
* Individuals diagnosed with secondary arthritis or inflammatory joint disease.
* Pregnant or breastfeeding women.
* Individuals with active bleeding disorders.
* Individuals with asthma and individuals with liver or kidney failure.
* Individuals with connective tissue diseases (e.g., lupus, systemic sclerosis).
* Individuals who have experienced a serious infection within the last three months or are immunosuppressed.
* Individuals with neurological diseases affecting knee stability.

Where it's running

  • Bitlis State Hospital
    Bitlis, Turkey (Türkiye)
    Recruiting
  • Bitlis Tatvan State Hospital
    Bitlis, Turkey (Türkiye)
    Recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 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.