Could a pill plus walking ease knee pain and lift mood in veterans?
NCT ID NCT07649291
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study tests whether combining the medication duloxetine with a structured walking program can improve physical function, reduce pain, and ease depressive symptoms in veterans with knee osteoarthritis. Participants will be assigned to either the drug-plus-exercise group or a physical therapy referral group. The goal is to find a practical treatment that addresses both pain and mood in this population.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- duloxetine
- What this could lead to
- If it works, this could point toward a practical treatment strategy that improves mobility and quality of life for veterans with chronic knee pain and depression.
- What could go wrong
- This is a mid-stage trial with 102 participants, so results may not apply to all patients. The combination may cause side effects like nausea or dizziness, and the exercise program may be hard to maintain.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Phase
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Phase 2
Tests whether the treatment actually works, and watches for side effects, in a larger group.
- Participants
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About 102 people
The number the study aims to enrol. It can still change while the study runs.
- Expected to start
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Mar 2027
An estimate. Start dates often move.
- Expected to finish
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Sep 2032
An estimate. End dates often move.
- Lead sponsor
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A government agency
The lead sponsor is a US federal agency other than the NIH.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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40 years and older
- Sex
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Anyone
- Healthy volunteers
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Accepted
You do not need to have the condition being studied to take part.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * Veterans aged ≥40 years * English-speaking * symptomatic KOA based on American College of Rheumatology (ACR) criteria * Patient Health Questionnaire-9 (PHQ-9) scores indicating mild to severe depressive symptoms * no planned knee surgery within the next 6 months * ability to participate in supervised aerobic exercise Exclusion Criteria: * current use of antidepressants, opioids, benzodiazepines, or antipsychotics * engaging in structured aerobic or resistance exercise ≥3 times per week * cognitive impairment defined as a Mini-Mental State Examination (MMSE) score \<20 * diagnosis of bipolar disorder, psychosis, recent substance use disorder, or suicidal ideation per the Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition (DSM-5) * medical conditions contraindicating exercise (e.g., recent myocardial infarction, unstable angina, peripheral arterial disease with ulcers, -uncontrolled hypertension \>190/110, or New York Heart Association class ≥3 cardiac or pulmonary disease) * pregnant or lactating individuals * active cancer that is currently undergoing treatment (receiving chemotherapy and/or radiation therapy * other conditions deemed by study team to endanger the health of the participant
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
1 site. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
Contacts and locations
Locations
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Baltimore VA Medical Center VA Maryland Health Care System, Baltimore, MD
Baltimore, Maryland, 21201, United States
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