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Efficacy of Caffeine, With and Without Biperiden, in the Detoxification of Cocaine Dependent Patients

This study has been completed.
Information provided by:
Hospital Universitari Vall d'Hebron Research Institute Identifier:
First received: June 29, 2007
Last updated: February 29, 2012
Last verified: February 2012

The aim of this study is to assess the efficacy of caffeine compared to placebo in detoxifying cocaine dependent patients. Caffeine potentiation with biperiden will be also studied.

108 with cocaine dependence will be randomized to receive caffeine (300 - 1200 mg t.i.d.) plus biperidene (8 mg b.i.d.) or caffeine (300 - 1200 mg t.i.d.) with placebo or placebo during 6 months.

Primary efficacy outcomes will be 1) patient comfort assessed with abstinence symptomatology, craving for cocaine and mental status during detoxifying period, 2) study retention and 3) cocaine use.

Brain dopamine system will be assessed thru IBZM-SPECT and the apomorphine test.

Condition Intervention Phase
Cocaine Related Disorders
Drug: Caffeine
Drug: Biperiden
Drug: Placebo
Phase 2
Phase 3

Study Type: Interventional
Study Design: Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Double Blind (Participant, Investigator, Outcomes Assessor)
Primary Purpose: Treatment
Official Title: Efficacy of Caffeine, With and Without Biperiden, in the Detoxification of Cocaine Dependent Patients

Resource links provided by NLM:

Further study details as provided by Hospital Universitari Vall d'Hebron Research Institute:

Primary Outcome Measures:
  • 1) comfort with cocaine detox defined as cocaine abstinence symptoms, cocaine craving, depressive symptoms and anxiety symptoms 2) study retention and 3) cocaine use. [ Time Frame: 12-14 days for primary otcome num 1 and 23 weeks for num 2 and 3. ]

Enrollment: 85
Study Start Date: January 2005
Study Completion Date: October 2010
Primary Completion Date: December 2009 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: 1
This study arm will receive caffeine+placebo
Drug: Caffeine
Caffeine from 300 mg/d to 1200 mg/d or 15 mg/kg/d
Experimental: 2
this study arm will receive Caffeine+Biperiden
Drug: Caffeine
Caffeine from 300 mg/d to 1200 mg/d or 15 mg/kg/d
Drug: Biperiden
Biperiden 2-4 mg/d p.o.
Placebo Comparator: 3
this study arm will receive placebo+placebo
Drug: Placebo
Placebo + Placebo


Ages Eligible for Study:   18 Years to 60 Years   (Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • diagnosis of intranasal cocaine dependence, according to DSM-IV-TR criteria
  • age between 18 and 60 years
  • current cocaine use, confirmed by a positive urine drug screen for cocaine the week prior to admission.
  • demonstrated capacity to grant informed consent and sign the pertinent informed consent form.
  • place of residence compatible with attendance at the centre.
  • for women, willingness to use effective contraceptive measures during the study.

Exclusion Criteria:

  • diagnosis of a severe medical disorder that could interfere with the study
  • presence of an organic pathology for which methylxanthines or biperidene, iodine or apomorphine administration is contraindicated
  • serum liver transaminase levels 3 times higher than normal values
  • pregnancy and breast-feeding
  • neuroleptic medication treatment in the past 6 weeks
  • current treatment, or anticipation that the patient may need to initiate treatment during the study with drugs that may interact with study medication.
  • current diagnosis of a major mental disorder.
  • awareness of a situation that could prevent the patient's participation in the study (e.g. serving a sentence)
  • current participation in another research project.
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Please refer to this study by its identifier: NCT00495092

Hospital Universitari Vall d'Hebron
Barcelona, Catalonia, Spain, 08035
Sponsors and Collaborators
Hospital Universitari Vall d'Hebron Research Institute
Principal Investigator: Miquel Casas, Prof. Hospital Universitari Vall d'Hebron Barcelona, Catalonia, Spain
  More Information

Responsible Party: Miguel Casas Brugué, Servei de Psiquiatria. Hospital Universitari Vall d'Hebron Identifier: NCT00495092     History of Changes
Other Study ID Numbers: CAF-DTX-1
Study First Received: June 29, 2007
Last Updated: February 29, 2012

Keywords provided by Hospital Universitari Vall d'Hebron Research Institute:
cocaine dependence
cocaine use
cocaine craving

Additional relevant MeSH terms:
Cocaine-Related Disorders
Substance-Related Disorders
Chemically-Induced Disorders
Mental Disorders
Biperiden lactate
Central Nervous System Stimulants
Physiological Effects of Drugs
Phosphodiesterase Inhibitors
Enzyme Inhibitors
Molecular Mechanisms of Pharmacological Action
Purinergic P1 Receptor Antagonists
Purinergic Antagonists
Purinergic Agents
Neurotransmitter Agents
Anesthetics, Local
Central Nervous System Depressants
Sensory System Agents
Peripheral Nervous System Agents
Vasoconstrictor Agents
Dopamine Uptake Inhibitors
Neurotransmitter Uptake Inhibitors
Membrane Transport Modulators
Dopamine Agents
Antiparkinson Agents
Anti-Dyskinesia Agents
Parasympatholytics processed this record on April 26, 2017