Arthritis, Rheumatoid Clinical Trial
Official title:
Milnacipran in the Treatment of Widespread, Non-Joint Pain in Rheumatoid Arthritis
Verified date | November 2014 |
Source | Brigham and Women's Hospital |
Contact | n/a |
Is FDA regulated | No |
Health authority | United States: Institutional Review Board |
Study type | Interventional |
The purpose of this study is to determine whether milnacipran reduces widespread, non-joint pain in patients with rheumatoid arthritis (RA). The investigators will conduct a double-blind randomized crossover trial in subjects with RA to test the hypothesis that milnacipran improves widespread, non-joint pain. The investigators will also use data from the trial to determine whether response to milnacipran is associated with pain-modulating mechanisms from the central nervous system. The investigators hypothesize that response to milnacipran will be greater among patients with impaired central pain mechanisms than among patients with intact central pain modulating mechanisms.
Status | Completed |
Enrollment | 49 |
Est. completion date | November 2013 |
Est. primary completion date | November 2013 |
Accepts healthy volunteers | No |
Gender | Both |
Age group | 24 Years and older |
Eligibility |
Inclusion Criteria: - Age 24 years or older - Primary diagnosis of rheumatoid arthritis from a board-certified rheumatologist - Willing to maintain stable doses of concurrent non-steroidal anti-inflammatory drugs or other acceptable medications or therapies for the duration of the study - Brief Pain Inventory Average Pain >= 4 at the screening visit - Widespread Pain Index >= 5 at the screening visit - Able to give informed consent Exclusion Criteria: - Diagnosis of primary fibromyalgia - Diagnosis of cold sensitive conditions such as Raynaud's syndrome, cryoglobulinemia and paroxysmal cold hemoglobinuria - Diagnosis of psychotic disorders, such as schizophrenia, schizoaffective disorder, delusional disorder and shared psychotic disorder - Patients being treated with SSRIs, MAO inhibitors or tricyclic, tetracyclic or atypical antidepressants for pain may participate in this study if they are washed off these medications before study entry. Patients currently receiving therapy with SSRIs or tricyclic, tetracyclic or atypical antidepressants for depression may be washed off these medications before study entry pending permission of the prescribing physician and if they have never received a diagnosis of major depressive disorder or had a history of suicidal ideation. - Patients on thioridazine or MAO inhibitors - Patients taking codeine or other opioids/opiates. Patients who are taking medications such as pregabalin (Lyrica) and gabapentin (Neurontin) for pain may be enrolled in this study. - Known hypersensitivity to milnacipran - Patients with a significant risk of suicide as assessed by the Beck depression inventory form - Patients with a history of suicide - Pregnant or breast-feeding women - Patients with an actively pending worker's compensation claim or auto no-fault claim; patients with current worker's compensation, auto no-fault compensation, or litigation; or any patient with significant secondary gain issues per discretion of the researchers. - Patients with myocardial infarction within the past 12 months, active cardiac disease (chest pain or evidence of ischemia on stress test), acute congestive heart failure requiring hospitalization in the past 12 months, clinically significant cardiac rhythm or conduction abnormalities requiring hospitalization in the past 12 months - Patients with severe liver impairment (AST or ALT > 3 times the upper limit of normal) - For patients 2-3 times the upper limit of normal, we will obtain enrollment permission from the patient's hepatologist and monitor values at each study visit. If values increase above 3 times the upper limit of normal, the patient will be discontinued from the study. - For patients 1-2 times the upper limit of normal, we will obtain enrollment permission from the patient's physician and monitor per request of the physician. - Patients with severe or end stage renal disease, defined as a GFR < 15 ml/min or on dialysis - Patients with a recent (= 12 months) history of seizures. - Patients with uncontrolled narrow-angle glaucoma. - Patients who have been treated with an experimental agent within the last three months. |
Allocation: Randomized, Endpoint Classification: Efficacy Study, Intervention Model: Crossover Assignment, Masking: Double Blind (Subject, Caregiver, Investigator, Outcomes Assessor), Primary Purpose: Treatment
Country | Name | City | State |
---|---|---|---|
United States | Brigham and Women's Hospital | Boston | Massachusetts |
Lead Sponsor | Collaborator |
---|---|
Brigham and Women's Hospital | Forest Laboratories, National Institute of Arthritis and Musculoskeletal and Skin Diseases (NIAMS) |
United States,
Lee YC, Chibnik LB, Lu B, Wasan AD, Edwards RR, Fossel AH, Helfgott SM, Solomon DH, Clauw DJ, Karlson EW. The relationship between disease activity, sleep, psychiatric distress and pain sensitivity in rheumatoid arthritis: a cross-sectional study. Arthritis Res Ther. 2009;11(5):R160. doi: 10.1186/ar2842. Epub 2009 Oct 29. — View Citation
Type | Measure | Description | Time frame | Safety issue |
---|---|---|---|---|
Primary | Brief Pain Inventory (BPI) Change | A measure of change in scores on the BPI short form, a "24-hr average pain" item, from baseline to 6 weeks, The BPI short form scores ranges from 0-10, with 10 being the worst pain. | Baseline to 6 weeks | No |
Secondary | Change in Conditioned Pain Modulation (CPM) | CPM is defined as the difference between pain threshold A (measured after a conditioning stimulus activates pathways that inhibit pain) and pain threshold B (measured before the conditioning stimulus is applied). The conditioning stimulus was immersion of the hand in a cold water bath. Pressure pain threshold was assessed at the trapezius muscle initially. Subjects were then instructed to immerse their hand in a water bath for 30 seconds. At 20 seconds, pressure pain threshold at the trapezius was assessed again. We defined the magnitude of subjects' CPM as the difference in pressure pain threshold between baseline and 20 seconds after cold water immersion. This difference was compared to that measured at 6 weeks. The scale for the difference in CPM ranged from 0-11 kg/cm^2, with 0 indicating no change in CPM between 6 weeks and baseline and 11 indicating the maximum possible change. A greater change in CPM between baseline and 6 weeks is indicative of improvements in CPM. | Baseline to 6 weeks | No |
Secondary | Symptom Intensity Scale (SIS) | A measure of the change in SIS score from baseline to 6 weeks. The SIS score ranges from 0-9.75, with high scores being worse indicating more widespread pain and fatigue. | Baseline to 6 weeks | No |
Secondary | Thumbnail Pain Threshold | A measure of the change in thumbnail pain threshold from baseline to 6 weeks. Thumbnail pain threshold was determined by applying pressure to a subjectt's thumbnail until the subject felt pain. The difference between the average thumbnail pain threshold (an average for the right and left thumbs) at baseline was compared to that at 6 months. Pain threshold was measured in kg/cm^2. The difference in threshold could range from 0-11 kg/cm^2. A higher difference between thresholds indicates improved pain sensitivity. | Baseline to 6 weeks | No |
Secondary | Trapezius Pain Threshold | A measure of the change in trapezius pain threshold from baseline to 6 weeks. Trapezius pain threshold was determined by applying pressure to a subject's trapezius muscle until the subject felt pain. The difference between the average trapezius pain threshold (an average for the right and left trapezii) at baseline was compared to that at 6 months. Pain threshold was measured in kg/cm^2. The difference in threshold could range from 0-11 kg/cm^2. A higher difference between thresholds indicates improved pain sensitivity. | Baseline to 6 weeks | No |
Secondary | Wrist Pain Threshold | A measure of the change in wrist pain threshold from baseline to 6 weeks. Wrist pain threshold was determined by applying pressure to a subject's wrist until the subject felt pain. The difference between the average wrist pain threshold (an average for the right and left wrists) at baseline was compared to that at 6 months. Pain threshold was measured in kg/cm^2. The difference in threshold could range from 0-11 kg/cm^2. A higher difference between thresholds indicates improved pain sensitivity. | Baseline to 6 weeks | No |
Secondary | Knee Pain Threshold | A measure of the change in knee pain threshold from baseline to 6 weeks. Knee pain threshold was determined by applying pressure to a subject's knee until the subject felt pain. The difference between the average knee pain threshold (an average for the right and left knees) at baseline was compared to that at 6 months. Pain threshold was measured in kg/cm^2. The difference in threshold could range from 0-11 kg/cm^2. A higher difference between thresholds indicates improved pain sensitivity. | Baseline to 6 weeks | No |
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