Amyotrophic Lateral Sclerosis Clinical Trial
Official title:
A Clinical Investigation of the Safety and Efficacy of Clenbuterol on Motor Function in Individuals With Amyotrophic Lateral Sclerosis
The purpose of this study is to assess the safety and tolerability of clenbuterol (taken by mouth) in subjects with ALS (amyotrophic lateral sclerosis) and to assess the effectiveness of clenbuterol with regard to motor function in subjects with ALS. Subjects will be in this study approximately 24 weeks. The study drug, clenbuterol, is taken twice a day. As part of this study subjects will have the following tests and procedures: medical history, vital signs, physical examination, blood tests, heart and lung function tests, muscle function test, ALSFRS-R (ALS Functional Rating Scale Revised), thyroid function and for women who can become pregnant, pregnancy tests.
This is an open label pilot trial in which 25 people with ALS will take clenbuterol orally at 40-80 micrograms twice daily for 24 weeks. In person visits will occur at weeks 0, 4, 12 and 24. Telephone visits will occur at weeks 1, 6, 16 and 20. During these visits several safety and efficacy outcome measures will be performed for research purposes including safety labs, thyroid functions, pregnancy testing, ALSFRS-R, FVC (forced vital capacity), and muscle strength testing (myometry). The critical test of treatment efficacy will be the comparison of the ALSFRS-R slope during treatment to the estimated pre-treatment slope. All participants will continue to have standard follow up care for their ALS at Duke (for patients followed here) or their local ALS clinic ;
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