Multiple Sclerosis Clinical Trial
Cannabis for Spasticity in Multiple Sclerosis
Summary
The purpose of this study is to learn if the use of inhaled cannabis (marijuana) and oral cannabinoid (dronabinol, Marinol or THC, which is an active ingredient of marijuana) is safe and effective in reducing the symptoms of spasticity and tremor in patients with secondary-progressive or primary progressive multiple sclerosis.
Full Description
The treatment of MS is far from satisfactory. For acute attacks, high dose corticosteroids seem to reduce the duration of attacks and to reduce the likelihood of future attacks. Immunomodulatory agents, available in this disease over the last decade, reduce the frequency of severe attacks by about one third. The remainder of the treatments are symptomatic, aimed at reducing the disability already present.
Recent research into the CB1 and CB2 cannabinoid receptor systems suggest that cannabis may have the potential for affecting both the pathogenic mechanisms and the symptoms of MS. In light of the autoimmune hypothesis of the etiology of MS, THC could directly alter immune function in a manner that might reduce (or increase) the primary pathology of the disease.
Comparisons: Three treatment arms will be compared: 1) inhaled cannabis and oral placebo, 2) inhaled placebo and oral THC, 3) inhaled placebo and oral placebo, with the effects of these agents analyzed at thirty and sixty days.
Eligibility Criteria
Inclusion Criteria:
Diagnosis of clinically definite multiple sclerosis as defined by Poser criteria
Primary or secondary disease course
Moderate or severe spasticity
Age 21 or older
Exclusion Criteria:
Preexisting pulmonary conditions, including poorly controlled asthma, chronic bronchitis, emphysema, bronchiectasis, and other significant pulmonary disorders
Preexisting cardiac conditions, including ischemic heart disease, congestive heart failure, and other significant cardiac disorders
Inability to abstain from tobacco or marijuana smoking, or use of alcohol or sedative or hypnotic medications during the duration of the study
Past history of abuse of recreational drugs, including marijuana and alcohol in the last 12 months
History of or currently meets DSM-IV criteria for dependence on cannabis
Use of cannabis, marijuana, or THC in the last two weeks
Preexisting dementia, mania, depression, or schizophrenia or other poorly controlled psychiatric illness
Exacerbation of MS within 30 days prior to screenin visit
Current use of cyclophosphamide, mitoxanthrone, or cladribine
Arthritis, bony and soft tissue disorders interfering with spasticity measures
Inability to provide informed consent
Recent cannabis use of more than twice per week one month prior to study entry
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There is 1 Location for this study
Sacramento California, 95817, United States
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