Clinical trial NCT00495092: Efficacy of Caffeine, With and Without Biperiden, in the Detoxification of Cocaine Dependent Patients
Official title: Efficacy of Caffeine, With and Without Biperiden, in the Detoxification of Cocaine Dependent Patients
Study type: INTERVENTIONAL
Overall status: COMPLETED
Phase: PHASE2
PHASE3
Conditions: Cocaine Related Disorders
Keywords: cocaine dependence
cocaine use
cocaine craving
Lead sponsor: Hospital Universitari Vall d'Hebron Research Institute
Sponsor class: OTHER
First posted: 2007-07-02
Enrollment: 85
Sex: ALL
Minimum age (years): 18
Maximum age (years): 60
Standard ages: ADULT
Accepts healthy volunteers: no
Allocation: RANDOMIZED
Intervention model: PARALLEL
Primary purpose: TREATMENT

Brief summary: 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.


Eligibility criteria: 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.

Primary outcomes:
measure: 1) comfort with cocaine detox defined as cocaine abstinence symptoms, cocaine craving, depressive symptoms and anxiety symptoms 2) study retention and 3) cocaine use.
timeFrame: 12-14 days for primary otcome num 1 and 23 weeks for num 2 and 3.
Secondary outcomes:
Other outcomes:
Locations:
city: Barcelona
country: Spain
facility: Hospital Universitari Vall d'Hebron
state: Catalonia
Study officials:
affiliation: Hospital Universitari Vall d'Hebron Barcelona, Catalonia, Spain
name: Miquel Casas, Prof.
role: PRINCIPAL_INVESTIGATOR
References: