Efficacy and Safety of Antidepressant Augmentation With Lamotrigine

NCT ID: NCT00652171

Last Updated: 2008-04-09

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

PHASE3

Total Enrollment

34 participants

Study Classification

INTERVENTIONAL

Study Start Date

2004-01-31

Study Completion Date

2006-01-31

Brief Summary

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This study reports a clinical trial evaluating lamotrigine safety and efficacy as an antidepressant augmentation agent in treatment resistant depression, therefore adding more empirical evidence to the limited number of studies on the use of lamotrigine.

Detailed Description

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Objective: This study reports a clinical trial evaluating lamotrigine safety and efficacy as an antidepressant augmentation agent in treatment resistant depression, therefore adding more empirical evidence to the limited number of studies on the use of lamotrigine.

Method: A double-blind pilot study was conducted with 34 nonbipolar, nonpsychotic patients who had DSM-IV major depressive disorder and were resistant to at least 2 antidepressants. The subjects were on taking antidepressant therapy and were randomly assigned to receive placebo or lamotrigine as an adjunct therapy for 8 weeks. They were evaluated on a biweekly basis in order to access assess the efficacy and the safety of the drug.

Conditions

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Depression

Keywords

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Treatment Augmentation Resistant depression Lamotrigine

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

TRIPLE

Participants Caregivers Investigators

Study Groups

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1

17 Patients - Mean age of 26 years old, 14 female and 3 male - with major depressive disorder in single or recurrent episodes, with moderate to severe intensity. Besides, They also had a history of treatment-resistant depression stage II or above according to the criteria of by Thase and Rush: failure to respond to treatment with at least 2 antidepressants of different classes, at the maximum tolerated dose for at least 6 weeks and absence of psychotic symptoms.

Group Type ACTIVE_COMPARATOR

Lamotrigine

Intervention Type DRUG

Lamotrigine was added to the ongoing antidepressant. The doses were titrated to 200mg/day.

2

17 Patients - 11 females and 6 males mean age of 29 years old - with major depressive disorder in single or recurrent episodes, with moderate to severe intensity. Besides, They also had a history of treatment-resistant depression stage II or above according to the criteria of by Thase and Rush: failure to respond to treatment with at least 2 antidepressants of different classes, at the maximum tolerated dose for at least 6 weeks and absence of psychotic symptoms.

Group Type PLACEBO_COMPARATOR

Amide

Intervention Type DIETARY_SUPPLEMENT

Capsule of amide were given to this group of patients. They continued the ongoing antidepressants.

Interventions

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Lamotrigine

Lamotrigine was added to the ongoing antidepressant. The doses were titrated to 200mg/day.

Intervention Type DRUG

Amide

Capsule of amide were given to this group of patients. They continued the ongoing antidepressants.

Intervention Type DIETARY_SUPPLEMENT

Eligibility Criteria

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Inclusion Criteria

* They were selected according to a clinical interview based on DSM-IV criteria for major depressive disorder in single or recurrent episodes, with moderate to severe intensity. Besides
* They also had a history of treatment-resistant depression stage II or above according to the criteria of by Thase and Rush11

* failure to respond to treatment with at least 2 antidepressants of different classes
* at the maximum tolerated dose for at least 6 weeks and absence of psychotic symptoms

Exclusion Criteria

* Pregnant or lactating women or those capable of getting pregnant that who were not using contraceptive methods were excluded as well as patients with severe clinical diseases or organic mental disorder
* psychosis
* and bipolar disorder as well as personality disorders and disorders related to alcohol and other drugs
Minimum Eligible Age

18 Years

Maximum Eligible Age

60 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Institute of Social Security of the Civil Servants of Minas Gerais

OTHER_GOV

Sponsor Role lead

Responsible Party

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Post - Graduation in Health Sciences, IPSEMG

Principal Investigators

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Milena A Santos, Master

Role: PRINCIPAL_INVESTIGATOR

City Hall of Beló Horizonte

Claudia Hara, Master

Role: STUDY_CHAIR

Faculdade de Saúde e Ecologia Humana

Fabio L Rocha, PhD

Role: STUDY_DIRECTOR

Institute of Social Security of the Civil Servants of Minas Gerais

References

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Barbosa L, Berk M, Vorster M. A double-blind, randomized, placebo-controlled trial of augmentation with lamotrigine or placebo in patients concomitantly treated with fluoxetine for resistant major depressive episodes. J Clin Psychiatry. 2003 Apr;64(4):403-7. doi: 10.4088/jcp.v64n0407.

Reference Type BACKGROUND
PMID: 12716240 (View on PubMed)

Rocha FL, Hara C. Lamotrigine augmentation in unipolar depression. Int Clin Psychopharmacol. 2003 Mar;18(2):97-9. doi: 10.1097/00004850-200303000-00006.

Reference Type BACKGROUND
PMID: 12598821 (View on PubMed)

Barbee JG, Jamhour NJ. Lamotrigine as an augmentation agent in treatment-resistant depression. J Clin Psychiatry. 2002 Aug;63(8):737-41. doi: 10.4088/jcp.v63n0813.

Reference Type BACKGROUND
PMID: 12197456 (View on PubMed)

Santos MA, Rocha FL, Hara C. Efficacy and safety of antidepressant augmentation with lamotrigine in patients with treatment-resistant depression: a randomized, placebo-controlled, double-blind study. Prim Care Companion J Clin Psychiatry. 2008;10(3):187-90. doi: 10.4088/pcc.v10n0302.

Reference Type DERIVED
PMID: 18615166 (View on PubMed)

Related Links

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Other Identifiers

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CEP: 093/03

Identifier Type: -

Identifier Source: org_study_id