About this trial
Knee osteoarthritis (KOA) is one of the most common causes of chronic pain, mobility problems, and disability among United States Veterans. Many Veterans with KOA also experience depressive symptoms, which can worsen pain, reduce motivation to exercise, and make recovery more difficult. This study will test whether a structured hybrid aerobic exercise program that combines supervised and home-based walking with the medication duloxetine can improve physical function, reduce pain, lessen depressive symptoms, and improve overall health-related outcomes in Veterans with KOA. The goal of this research is to develop a practical and scalable treatment strategy that could improve rehabilitation and quality of life for Veterans with chronic knee pain and depressive symptoms and potentially be adapted for other chronic musculoskeletal conditions treated within the VA healthcare system.
Eligibility criteria
This trial accepts healthy volunteersQualifiers
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
Disqualifiers
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)
Trial design
Parallel
Treatments tested in this trial
Exercise
BehavioralParticipants will be asked to participate in a 1x/week center-based exercise session and 2x/week walking session conducted on their own for \~12 weeks.
Duloxetine
DrugParticipants will receive study medication - duloxetine - and take medication as directed.
Placebo
DrugParticipants will receive study medication - matched placebo- and take as directed.
PT referral
BehavioralParticipants will be referred to physical therapy with treatment as part of usual care and individualized to the Veteran's needs.
Treatment groups
Trial outcomes
Primary outcomes
20-Meter Walk Test
20m WT (average time to walk 20 meters at usual pace across two trials) from baseline to 12 weeks, and between-group comparison (aerobic exercise + duloxetine vs. PT referral + duloxetine)
Secondary outcomes
Pain severity
The Knee injury and Osteoarthritis Outcome Score (KOOS) Pain subscale is a patient-reported measure of knee pain consisting of 9 items. Scores are transformed to a 0-100 scale, where 0 represents extreme knee pain and 100 represents no knee pain. Higher scores indicate better outcomes (less pain). KOOS Pain is a self-report measure with five subscales. The pain subscale will be the pain outcome.
Depressive symptoms
The Hamilton Depression Rating Scale (HAM-D) is a clinician-administered measure of depressive symptom severity. Total scores range from 0 to 52, with higher scores indicating more severe depressive symptoms and worse outcomes. Lower scores indicate improvement in depressive symptoms. Hamilton Depression Rating Scale (HAM-D) is a 17-item interviewer-administered scale.
Sponsors and contacts
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VA Office of Research and Development
Lead sponsor
Baltimore VA Medical Center
Collaborator
This trial is not recruiting at the moment. You can still explore other options: