Osteoarthritis, KneeNCT06080347
Effect of Anti-inflammatory Diet in Osteoarthritis
A study testing Anti-inflammatory Diet and Healthy Diet in people with Osteoarthritis, Knee, run by University of California, San Diego at 1 site in United States.
Trial summary
In a previous exploratory study, the investigators observed an effect on disease activity outcomes of anti-inflammatory diet. The investigators also observed change in microbiome and circulating metabolites. Read more about this study
- Who is it for?
- Ages 18 years and older
- Conditions the study is for
- Osteoarthritis, Knee
- What is being tested?
- Anti-inflammatory Diet and Healthy Diet
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 72 participants
- Where
- 1 siteUnited States
- Study dates
- 1 Oct 2023to 1 Apr 2027
- Phase
- Interventional
- Are there results?
- Not yet: the study is under way
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 years and older
- All sexes
- No healthy volunteers
- Adult, Older adult
Who may be able to join
- Unilateral radiographic symptomatic KOA
- No changes in therapy during the previous 3 months
- Interested in dietary intervention and able to provide consent and attend follow-up visits
Who cannot join
- Previous knee surgery
- Severe radiographic disease (KL grade 4)
- Rheumatoid Arthritis
- Any Abnormal blood values in the comprehensive metabolic panel test at screen (Abnormality will be defined based on standard reference ranges)
- Use of corticosteroids and/or intra-articular injections during the preceding 3 months
- Use of fish oils and glucosamine
Show all 13Show fewer
- Participation in a weight loss program in the preceding 6 months
- Recent changes in physical activity levels
- Regular smoking
- Patients with food allergies
- Patient with other medical conditions that will impair the ability to participate in a nutritional study
- Plan to change systemic therapy
- Patients unwilling to change dietary habits
Trial locations and contacts
1 site in 1 country. Contact the study team or a site near you to ask about taking part.
United States1 site, 1 recruiting
- Recruiting
University of California
San Diego, California, 92122
Monica Guma, M.D, PHD, mguma@health.ucsd.edu
About this study
Official title: An Evaluator-blinded Randomized Controlled Trial Study of the Effect of Anti-inflammatory Diet in Subjects With Osteoarthritis
In a previous exploratory study, the investigators observed an effect on disease activity outcomes of anti-inflammatory diet. The investigators also observed change in microbiome and circulating metabolites. The current study will determine whether or not the addition of anti-inflammatory diet improves the clinical outcomes in participants with Osteoarthritis, and the role of microbiome and circulating metabolites.
- Conditions
- Osteoarthritis, Knee
- Being tested
- Anti-inflammatory Diet, Healthy Diet
- Medical subject headings
- Osteoarthritis, Knee
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Anti-inflammatory DietOther
Dietary intervention
Healthy DietOther
Dietary intervention
| Study group | Role | What they receive |
|---|---|---|
| Arm_1 | Active comparator | Anti-inflammatory Diet Receives: Other: Anti-inflammatory Diet |
| Arm_2 | Experimental | Healthy Diet Receives: Other: Healthy Diet |
What is being measured
The primary outcome is the main question the study is designed to answer.
Change in Knee Osteoarthritis Pain
The Western Ontario and McMaster Universities Osteoarthritis Index, known as the WOMAC score, is a validated questionnaire used for evaluating pain, stiffness, and physical function in individuals with knee or hip osteoarthritis. A minimum score of 0 indicates no symptoms and a maximum score of 100, represents the most severe symptoms. Higher WOMAC scores correspond to worse outcomes, indicating more significant pain, stiffness, and functional limitations associated with osteoarthritis. The primary outcome for the purpose of this study will be the proportion of patients experiencing a change of at least 30% in WOMAC-pain score after 3 months of intervention compared to the control group.
Measured: 3 months
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted12 Oct 2023
- Study start1 Oct 2023
- Primary completion1 Apr 2027 (estimated)
- Study completion1 Apr 2027 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Osteoarthritis, KneeStudies of the same condition, open and under way.
- More trials run by University of California, San DiegoThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase N/A
- Primary purpose
- Supportive care
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Double blind
- Who is masked
- Care provider, Outcomes assessor
- Enrolment
- 72 participants (estimated)
Sponsor and investigators
- Lead sponsor
- University of California, San Diego
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Monica Guma, University of California, San Diego
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT06080347
- Sponsor's protocol ID
- 807845
- Status last verified
- Nov 2026
- First submitted
- 6 Oct 2023
- Last updated
- 6 Nov 2026
- Results posted
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- No
Study at a glance
From the registry record, last updated by the sponsor on 6 Nov 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- An Evaluator-blinded Randomized Controlled Trial Study of the Effect of Anti-inflammatory Diet in Subjects With Osteoarthritis
- ClinicalTrials.gov ID
- NCT06080347
- Acronym / sponsor ID
- 807845
- Conditions
- Osteoarthritis, Knee
- Study type
- Interventional
- Recruitment status
- Recruiting
- Enrolment
- 72 participants (estimated)
- Lead sponsor
- University of California, San DiegoUniversity, hospital or other
- Study start
- 1 Oct 2023 (actual)
- Primary completion
- 1 Apr 2027 (estimated)
- Study completion
- 1 Apr 2027 (estimated)
- First posted
- 12 Oct 2023 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
In a previous exploratory study, the investigators observed an effect on disease activity outcomes of anti-inflammatory diet. The investigators also observed change in microbiome and circulating metabolites. The current study will determine whether or not the addition of anti-inflammatory diet improves the clinical outcomes in participants with Osteoarthritis, and the role of microbiome and circulating metabolites.
Study design
- Primary purpose
- Supportive care
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Double blind (care provider, outcomes assessor)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| Arm_1 | Active comparator | Other: Anti-inflammatory DietAnti-inflammatory Diet |
| Arm_2 | Experimental | Other: Healthy DietHealthy Diet |
Who may qualify
- Ages
- 18 years and older
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (3 listed)
- Unilateral radiographic symptomatic KOA
- No changes in therapy during the previous 3 months
- Interested in dietary intervention and able to provide consent and attend follow-up visits
Key exclusion criteria (13 listed)
- Previous knee surgery
- Severe radiographic disease (KL grade 4)
- Rheumatoid Arthritis
- Any Abnormal blood values in the comprehensive metabolic panel test at screen (Abnormality will be defined based on standard reference ranges)
- Use of corticosteroids and/or intra-articular injections during the preceding 3 months
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| Anti-inflammatory DietDietary intervention | Other | Arm_1 |
| Healthy DietDietary intervention | Other | Arm_2 |
Primary outcome
Change in Knee Osteoarthritis Pain
Time frame: 3 months
The Western Ontario and McMaster Universities Osteoarthritis Index, known as the WOMAC score, is a validated questionnaire used for evaluating pain, stiffness, and physical function in individuals with knee or hip osteoarthritis. A minimum score of 0 indicates no symptoms and a maximum score of 100, represents the most severe symptoms. Higher WOMAC scores correspond to worse outcomes, indicating more significant pain, stiffness, and functional limitations associated with osteoarthritis. The primary outcome for the purpose of this study will be the proportion of patients experiencing a change of at least 30% in WOMAC-pain score after 3 months of intervention compared to the control group.
Results and safety
This study is still under way. Results are not available in the source record yet.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 6 Nov 2026.
- Individual participant dataSharing planned: No
Related trials for Osteoarthritis, Knee
Not yet recruiting
Holistic Healing for Knee Osteoarthritis
Knee Osteoarthritis (Knee OA)
Active, not recruitingPhase 2/3
Single vs Triple Hyaluronic Acid in Knee Osteoarthritis
Osteoarthritis, Knee
Not yet recruiting
The Feasibility of a Virtual/Home-based OA Treatment Program in Older Adults With OA and Multimorbidity
Osteoarthritis of the Knee
RecruitingObservational study
Exploring Factors Linked to Worsening Over Time in People With Early-stage Knee Osteoarthritis and Those With Prior Proven Acute Knee Injury.
Knee Osteoarthritis
Recruiting
SII Levels Following iPACK Block With Adductor Canal Block in Knee Arthroplasty
Knee Osteoarthritis
Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part.
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing Anti-inflammatory Diet and Healthy Diet in people with Osteoarthritis, Knee, run by University of California, San Diego at 1 site in United States.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 3 inclusion and 13 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: looking for participants now, as of the sponsor's last update on 6 Nov 2026. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
This study is still under way. Results are not available in the source record yet.
How can a doctor refer a patient or contact the research team?
Contact Monica Guma, M.D., PhD (8588226523, mguma@health.ucsd.edu), or a site near the patient. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Change in Knee Osteoarthritis Pain (time frame: 3 months). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 6 Nov 2026.