Ibogaine in the Treatment of Alcoholism: an Open-label Escalating-dose Trial
Tolerability and Efficacy of Ibogaine in the Treatment of Alcoholism: an Open-label Escalating-dose Trial
Tolerability and Efficacy of Ibogaine in the Treatment of Alcoholism: an Open-label Escalating-dose Trial
Sponsor study identifier
interventional
9
1 country
1
Study Start
October 30, 2022
Actual (reported)Primary Completion
October 30, 2024
Actual (reported)Study Completion
October 30, 2024
Actual (reported)Approximately 5% of the world's adult population has some alcohol-related disorder, which in addition is associated with 3% of all deaths in the world. In Brazil, harmful use and dependence on alcohol reach about 10% of the population, with alcohol being one of the main factors of disease and mortality. Although the medications currently used have some efficacy, the adverse effects and relatively long time of treatment are factors that may reduce patients' motivation to continue taking the medication correctly. Therefore, it is necessary to conduct research with new drugs for the treatment of alcoholism. Ibogaine is an alkaloid present in the bush Tabernanthe iboga (iboga), a plant from Central Africa traditionally used in countries such as Gabon and Cameroon. Animal studies and case series suggest that one or a few doses of ibogaine significantly reduce withdrawal symptoms and the intensity of use of various drugs, including opioids, psychostimulants, and alcohol. However, there are no controlled clinical studies that have explored these effects. The aim of the present study is to evaluate the safety, tolerability and efficacy of increasing doses of ibogaine in 12 alcoholic patients. Each patient will be hospitalized for 20 days and receive 3 increasing doses of ibogaine. The first 3 patients will receive oral doses of 20 to 400 mg of ibogaine in an open-label design. If the 3 higher doses (240, 320 and 400 mg) are well tolerated, the next 9 volunteers will receive these doses or placebo randomly. The volunteers will also be evaluated 7, 14 and 21 days and 1, 3, 6 and 12 months after leaving the hospital to monitor the consumption of alcohol and other drugs.
Registry-reported information. Elapsed time and enrollment totals alone do not measure study progress or recruitment pace.
October 30, 2024
Actual (reported)Click on a node to explore related trials.
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Dates and qualifiers reported by the registry. Estimated dates do not confirm that a milestone has occurred.
December 15, 2017
Actual (reported)December 21, 2017
Actual (reported)October 30, 2022
Actual (reported)October 30, 2024
Actual (reported)October 30, 2024
Actual (reported)Time without using alcohol
Daily alcohol use
0-1 month
Subjective effects
0-12 hours
Cardiovascular effects
0-72 hours
Ibogaine Hydrochloride 240 mg on day 1, placebo on day 4, placebo on day 7
The first 3 patients will receive oral doses of 20 to 400 mg of ibogaine in an open-label design. If the 3 higher doses (240, 320 and 400 mg) are well tolerated, the next 9 volunteers will receive these doses or placebo randomly in 3 different groups.
Registry-reported names are shown in full. Names without a link have not yet been matched to a Syfrah profile.
Ribeirão Preto Medical School
Ribeirão Preto, São Paulo, 14048900, Brazil
Rafael dos Santos, PhD
Departamento de Neurociências e Ciências do Comportamento, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo
Jaime Hallak, PhD
Departamento de Neurociências e Ciências do Comportamento, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo
9 participants (actual enrollment reported by the registry).
First Submitted
December 15, 2017
First Posted
December 21, 2017
Study Start
October 30, 2022
Actual (reported)Contact the study team to confirm eligibility.
Primary Completion
October 30, 2024
Actual (reported)Study Completion
October 30, 2024
Actual (reported)Last Updated
November 26, 2024
Record last verified: 2024-11
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Source: ClinicalTrials.gov.
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