Phase 2 Selection Trial of High Dosage Creatine and Two Dosages of Tamoxifen in Amyotrophic Lateral Sclerosis (ALS)
试验速览
- 阶段
- 2 期
- 状态
- 已完成
- 发起方
- 入组人数
- 60
- 试验地点
- 9
- 主要终点
- Change in ALS Functional Rating Scale - Revised (ALSFRS-R)
研究概览
简要总结
The purpose of the study is to evaluate the safety and efficacy of high dose creatine and two dosages of tamoxifen treatment in amyotrophic lateral sclerosis (ALS).
详细描述
Amyotrophic lateral sclerosis (ALS) is a rare, neurodegenerative disorder that results in progressive wasting and paralysis of voluntary muscles. It is known that nerve cells called motor neurons die in the brains and spinal cords of people with amyotrophic lateral sclerosis (ALS). However, the cause of this cell death is unknown.
In this double blind, randomized, selection design trial, researchers will evaluate the safety and effectiveness of creatine and tamoxifen in volunteers with ALS. There are a large number of potential drugs that may improve the survival or slow down the disease progression in people with ALS. The current strategy is to test one drug at a time against placebo. "Selection Design" is a different type of study design. A Selection Design study uses multiple drugs to screen against each other and picks the winner to take to a larger study. This design can speed the search for effective drugs to treat ALS. In this Selection Design study, each volunteer will take one active study drug (creatine 30gm, tamoxifen 40mg, or tamoxifen 80mg) and one placebo.
Approximately 60 eligible volunteers with ALS will be recruited from multiple centers in the US that belong to the Northeast ALS Consortium (NEALS). Volunteers will be randomly assigned equally to the three treatment arms: creatine 30gm/day, tamoxifen 40mg/day and tamoxifen 80mg/day. Volunteers will take study treatment for 38 weeks. After screening and randomization, volunteers will be followed at weeks 4, 10, 18, 28 and week 38. A final telephone interview will occur at week 42 (off study drug).
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Parallel
- 主要目的
- Treatment
- 盲法
- Quadruple (Participant, Care Provider, Investigator, Outcomes Assessor)
入排标准
- 年龄范围
- 18 Years 至 —（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •Familial or sporadic ALS.
- •Disease duration from diagnosis no greater than 36 months at Screening Visit.
- •Aged 18 years or older.
- •Capable of providing informed consent and complying with trial procedures.
- •Vital capacity (VC) equal to or more than 50% predicted normal value for gender, height and age at the Screening Visit.
- •Not taking, or on a stable dose of riluzole (50mg bid) for at least 30 days prior to the Screening Visit.
- •Women must not be able to become pregnant for the duration of the study (e.g., post menopausal for at least one year, surgically sterile, or practicing adequate birth control methods) for the duration of the study. Women of childbearing potential must have a negative serum pregnancy test at the Screening Visit and be non-lactating.
排除标准
- •History of known sensitivity or intolerability to creatine monohydrate or tamoxifen citrate or to any other related compound.
- •Prior exposure to creatine or tamoxifen within 30 days of the Screening Visit.
- •Exposure to any investigational agent within 30 days of the Screening Visit.
- •Use of coumarin anticoagulants (warfarin sodium), rifampin, aminoglutethimide, medroxyprogesterone, letrozole, or bromocriptine.
- •Presence of any of the following clinical conditions: Clinical evidence of unstable medical or psychiatric illness at the Screening Visit; Screening aspartate aminotransferase (AST) > 3 times the upper limit of normal or serum creatinine > 1.5 mg/dl (133 umol/L); Permanent assisted ventilation or mechanical ventilation; or Lactating or have a positive serum pregnancy test at the Screening Visit.
- •History of any of the following: blood clots including deep vein thrombosis, pulmonary embolism, and stroke, cataracts, renal problems, endometrial cancer, uterine sarcoma, or diabetes mellitus.
研究组 & 干预措施
Creatine 30gm
Creatine will be taken as a powder mixed into food or liquid twice a day. Volunteers in this arm will take a total of 30gm of creatine per day for 38 weeks. Volunteers will also take placebo capsules twice a day for 38 weeks.
This is a blinded study, so neither participants nor study staff will know which treatment a volunteer is receiving.
Creatine is a nutritional supplement and is not approved by the U.S. Food and Drug Administration (FDA) for treating ALS.
干预措施: creatine (Drug)
Tamoxifen 40mg
Tamoxifen will be taken as capsules twice a day. Volunteers in this arm will take a total of 40mg of tamoxifen per day for 38 weeks. Volunteers will also take placebo powder twice a day for 38 weeks.
This is a blinded study, so neither participants nor study staff will know which treatment a volunteer is receiving.
Tamoxifen is approved by the U.S. Food and Drug Administration (FDA) for breast cancer treatment but is not approved for treating ALS.
干预措施: tamoxifen (Drug)
Tamoxifen 80mg
Tamoxifen will be taken as capsules twice a day. Volunteers in this arm will take a total of 80mg of tamoxifen per day for 38 weeks. Volunteers will also take placebo powder twice a day for 38 weeks.
This is a blinded study, so neither participants nor study staff will know which treatment a volunteer is receiving.
Tamoxifen is approved by the U.S. Food and Drug Administration (FDA) for breast cancer treatment but is not approved for treating ALS.
干预措施: tamoxifen (Drug)
结局指标
主要结局
Change in ALS Functional Rating Scale - Revised (ALSFRS-R)
时间窗: 38 weeks of treatment followed by a telephone interview at 42 weeks.
Primary efficacy will be assessed by analyzing the mean rate of decline in the ALS Functional Rating Scale-Revised (ALSFRS-R) score over nine months. The ALSFRS-R is a quickly administered (5 min) ordinal rating scale used to determine a subject's assessment of their capability and independence in 12 functional activities. There are 12 questions, graded by the subject 0-4 (4 is normal). Score of 0 (worst) to 48 (best). Reflects speech and swallowing, fine motor skills, large motor skills, and breathing.
次要结局
- Vital Capacity/Pulmonary Function Testing(38 weeks of treatment followed by a telephone interview at 42 weeks.)
- Tracheostomy-free Survival(38 weeks of treatment followed by a telephone interview at 42 weeks.)
- Dose Adjustments(38 weeks of treatment followed by a telephone interview at 42 weeks.)
- Lab Abnormal Reports by Treatment Assignment(38 weeks of treatment followed by a telephone interview at 42 weeks.)
- Hand Held Dynamometry (HHD) Lower Z-score(38 weeks of treatment followed by a telephone interview at 42 weeks.)
- HHD Lower % Baseline(38 weeks of treatment followed by a telephone interview at 42 weeks.)
- HHD Upper Z-score(38 weeks of treatment followed by a telephone interview at 42 weeks.)
- HHD Upper % Baseline(38 weeks of treatment followed by a telephone interview at 42 weeks.)
- Accurate Test of Limb Isometric Strength (ATLIS) Lower Percentage of Predicted Normal (PPN)(38 weeks of treatment followed by a telephone interview at 42 weeks.)
- ATLIS Upper Percentage of Predicted Normal (PPN)(38 weeks of treatment followed by a telephone interview at 42 weeks.)
研究者
Nazem Atassi
Nazem Atassi, MD. MMSc.
Massachusetts General Hospital