Anxiety in Recovering Opiate Dependence

Beth Israel Lahey Health

Status and phase

Terminated

Phase 4

Conditions

Status Post Methadone-Maintenance Treatment

Comorbid Opiate Dependence in Remission

Generalized Anxiety Disorder

Treatments

Drug: Quetiapine

Study type

Interventional

Funder types

Other

Industry

Identifiers

NCT00668265

IRUSQUET0443

IRB # (112-07)

Details and patient eligibility

About

This is a 16 week study of the efficacy of quetiapine in treating symptoms of generalized anxiety disorder (GAD) in subjects with comorbid opiate dependence. The study will be conducted in a prospective, randomized, double-blind, and placebo-controlled fashion. Study subjects will be inpatients at a residential drug-treatment facility, enrolled in a 1 year methadone-to-abstinence treatment plan. Subjects will be randomized to receive either quetiapine or placebo in addition to ongoing drug addiction treatment. Subjects will be followed for 16 weeks and a variety of psychometric assessments will be made.

Hypothesis One: Compared to placebo, Quetiapine will demonstrate a greater reduction in symptoms of anxiety in subjects with GAD and remitted comorbid opiate abuse.

Exploratory Hypotheses: Compared to placebo, Quetiapine will demonstrate a greater improvement in psychosocial functioning and compliance with community norms in subjects enrolled in a residential drug addiction treatment facility.

Enrollment

14 patients

Sex

All

Ages

21 to 65 years old

Volunteers

No Healthy Volunteers

Inclusion criteria

Provision of written informed consent
A diagnosis of opiate dependence as defined by Diagnostic and Statistical Manual of Mental Disorders- Fourth Edition (DSM-IV) during the past two years.
A diagnosis of generalized anxiety disorder as defined by Diagnostic and Statistical Manual of Mental Disorders- Fourth Edition (DSM-IV) within the past 6 months.
Males and females aged 21-55 years
Female patients of childbearing potential must be using a reliable method of contraception and have a negative urine human chorionic gonadotropin (HCG) test at enrollment
Able to understand and comply with the requirements of the study
Subjects must be free of illicit drug use for the past 3 months
Subjects must have received methadone maintenance therapy for at least 3 months, and have been at least 2 weeks methadone-free
Good health, as assessed by medical history, physical examination and laboratory tests

Exclusion criteria

Pregnancy or lactation
Current diagnosis of any Axis I disorder other than GAD, substance dependence in remission, or nicotine dependence
Patients who, in the opinion of the investigator, pose an imminent risk of suicide or a danger to self or others
Known intolerance or lack of response to quetiapine fumarate, as judged by the investigator
Use of any of the following cytochrome P450 3A4 inhibitors in the 14 days preceding enrolment including but not limited to: ketoconazole, itraconazole, fluconazole, erythromycin, clarithromycin, troleandomycin, indinavir, nelfinavir, ritonavir, fluvoxamine and saquinavir
Use of any of the following cytochrome P450 inducers in the 14 days preceding enrollment including but not limited to: phenytoin, carbamazepine, barbiturates, rifampin, St. John's Wort, and glucocorticoids
Administration of a depot antipsychotic injection within one dosing interval (for the depot) before randomisation
Medical conditions that would affect absorption, distribution, metabolism, or excretion of study treatment
Unstable or inadequately treated medical illness (e.g. diabetes, angina pectoris, hypertension) as judged by the investigator
Involvement in the planning and conduct of the study
Previous enrollment or randomisation of treatment in the present study.
Participation in another drug trial within 4 weeks prior enrollment into this study or longer in accordance with local requirements
A patient with Diabetes Mellitus (DM) fulfilling one of the following criteria:
Unstable DM defined as enrollment glycosylated hemoglobin (HbA1c) >8.5%.
Admitted to hospital for treatment of DM or DM related illness in past 12 weeks.
Not under physician care for DM
Physician responsible for patient's DM care has not indicated that patient's DM is controlled.
Physician responsible for patient's DM care has not approved patient's participation in the study
Has not been on the same dose of oral hypoglycaemic drug(s) and/or diet for the 4 weeks prior to randomization. For thiazolidinediones (glitazones) this period should not be less than 8 weeks.
Taking insulin whose daily dose on one occasion in the past 4 weeks has been more than 10% above or below their mean dose in the preceding 4 weeks Note: If a diabetic patient meets one of these criteria, the patient is to be excluded even if the treating physician believes that the patient is stable and can participate in the study.
An absolute neutrophil count (ANC) of 1.5 x 109 per liter
Positive urine drug screening test for drugs of abuse