An Open-label Trial of Milnacipran for the Treatment of Pain in Rheumatoid Arthritis (RA) in Older Adults
试验速览
- 阶段
- 4 期
- 状态
- 已完成
- 入组人数
- 18
- 试验地点
- 1
- 主要终点
- Pain Rating Index
研究概览
简要总结
The purpose of this study is to examine the effects of milnacipran for the treatment of pain in rheumatoid arthritis in older adults.
详细描述
This is a 12-week open-label trial of milnacipran for the treatment of pain in rheumatoid arthritis in older adults. The investigators are interested in the relationship of chronic pain to inflammation, resilience, fatigue, and physical and mental functioning. The investigators anticipate that effective pain reduction will result in improved fatigue, resilience, physical and mental functioning and reduced levels of inflammation. The investigators are seeking to examine this directly in 30 older adults (55 years of age or older) with rheumatoid arthritis who will be using milnacipran for treatment of pain in the absence of clinical major depression. This proposed trial will serve as a pilot study to estimate the effect of the drug on pain and functional outcomes, as well as aid in dose-finding in this population.
研究设计
- 研究类型
- Interventional
- 分配方式
- Na
- 干预模型
- Single Group
- 主要目的
- Treatment
- 盲法
- None
入排标准
- 年龄范围
- 50 Years 至 —（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •Diagnosis. RA subjects will be evaluated by a board certified rheumatologist using revised criteria established by the American College of Rheumatology (ACR). This requires at least four of the following seven criteria: 1) morning joint stiffness; 2) arthritis in 3 or more joint areas; 3) arthritis of hand joints; 4) symmetric arthritis; 5) rheumatoid nodules; 6) presence of serum rheumatoid factor and 7) changes on posteroanterior hand and wrist radiographs. In addition, criteria 1-4 must be present for at least four weeks. Individuals diagnosed with juvenile RA will be excluded.
- •Inclusion Criteria: Medication Use for RA patients. RA subjects taking disease modifying anti-rheumatic drugs (DMARDs) must be on a stable regime for one month before study and stable throughout study. RA subjects using DMARDs will be categorized as follows: 1) no DMARDs; 2) DMARD monotherapy with sulfasalazine, hydroxychloroquine, minocycline, or azothioprine, 3) DMARD monotherapy with methotrexate or leflunomide, 4) biologic therapy with or without concomitant DMARDs.
排除标准
- •Medical conditions. Subjects will not be eligible for the study based on the following criteria: (1) presence of acute or uncontrolled co-morbid medical conditions not limited to but including cardiovascular (e.g., history of acute coronary event, stroke, uncontrolled HTN) and neurological diseases (e.g., Parkinson's disease), as well as pain disorders; (2) presence of co-morbid inflammatory disorders such as Crohn's disease and ulcerative colitis and other autoimmune disorders; (3) presence of an uncontrolled medical condition that is deemed by the investigators to interfere with the proposed study procedures, or put the study participant at undue risk; (4) presence of chronic infections (e.g. positive purified protein derivative (PPD) test)) due to contraindication of tumor necrosis factor (TNF) antagonist use in these individuals and also because chronic infection can produce elevations in proinflammatory cytokines; (5) presence of an acute infectious illness in the two weeks prior to an experimental session; (6) pregnancy or breast-feeding because of the effects on neuroendocrine systems and sleep; (7) in women, the presence of vasomotor symptoms due to the effects of such symptoms on measures of sleep; (8) use of hormone containing medications including steroids; (9) current and/or regular use of nonsteroidal anti-inflammatory drug (NSAID) medications.
- •Exclusion Criteria: Psychiatric Disorders. RA subjects with a current or lifetime history of a major Depressive Disorder or other Diagnostic and Statistical Manual of Mental Disorders IV (DSM-IV) psychiatric disorder (e.g. substance dependence) will be excluded due to the known effects of major depression on pain. Although depressive symptoms can occur in as many as 40% of RA patients, the prevalence of syndromal major depressive disorder is considerably less, and we do not anticipate that exclusion of current or lifetime history of major depressive disorder will substantially alter subject flow. More than 75% of a selected sample of RA subjects at University of California, Los Angeles (UCLA) affiliated clinics does not have a history of co-morbid psychiatric disorder.
- •Exclusion Criteria: Medication use. Subjects who have used the following medications in the past two months will be excluded from the study: (1) previous use of Nitrogen Mustard, Cyclosporin, Cytotoxin, or Cyclophosphamide; (2) regular use of analgesics such as opioids, (3) regular use of prednisone >10mg of prednisone, (4) psychotropic medications, including selective serotonergic reuptake inhibitors, antidepressants, anxiolytics, hypnotics, sedatives and barbiturates. We will also exclude current smokers because of the known effects of tobacco use on proinflammatory cytokine levels. (Helen, I would suggest to remove this sentence. It is clear from studies that patients are higher risk for susceptibility and increased disease activity with smoking. It may decrease our enrollment.)
研究组 & 干预措施
Milnacipran, active drug, open-label
All subjects will be free of antidepressant medications or opiates, or any other medications used to treat pain for at least 2 weeks prior to initiation of dose titration. Patients will be allowed to escalate up to 100 mg a day, or to their maximum tolerated dose in the course of the first week. The stable-dose phase will be a 10-week period during which patients will take medications at the final dose achieved (either 100 mg per day in divided doses, or the maximum tolerated dose of less than 100 mg per day). Final efficacy assessments will be made at the termination visit, and the study medication will be tapered down following 12 weeks of drug treatment.
干预措施: Milnacipran (Drug)
结局指标
主要结局
Pain Rating Index
时间窗: Change score at baseline and 12 weeks
The Pain Rating Index ranked values associated with adjectives depicting the severity of pain from the McGill Pain Questionnaire (MPQ). The assessment is comprised of 15 adjectives, each of which is scored on a scale ranging from 0 (none) to 3 (severe) and summed to arrive at a score ranging from 0 (no pain) to 45 (worst possible pain), to measure the extent of pain/tenderness and swelling. The Pain Rating Index final scores were averaged to indicate an overall report of joint pain and stiffness.
次要结局
- Profile of Mood States (POMS)(Week 1 and 12)
- Visual Analogue Scale to Evaluate Fatigue (VAS-F)(Change scores from Week 1 to Week 12 of energy and fatigue)
- (UKU) Side Effects Rating Scale Profile(Weeks 1-4, 6, 8, 10, 12)
- Connor-Davidson Resilience Scale (CD-RISC)(Change Scores from Week 1 to Week 12)
研究者
Helen Lavretsky, MD
Professor
University of California, Los Angeles