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Study of Lamotrigine Treatment of Affective Instability in Borderline Personality Disorder

Study of Lamotrigine Treatment of Affective Instability in Borderline Personality Disorder

Status
Completed
Phases
Phase 4
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00634062
Enrollment
28
Registered
2008-03-12
Start date
2004-12-31
Completion date
2007-09-30
Last updated
2008-03-12

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Borderline Personality Disorder

Keywords

Affective Lability, Borderline Personality Disorder, Pharmacotherapy

Brief summary

This study investigates the hypothesis that instability in mood in patients with borderline personality disorder will respond the mood stabilizing medication lamotrigine.

Detailed description

Affective instability is one of the most prominent symptoms in borderline personality disorder. Currently there are no prospective studies of treatment of this symptom with mood stabilizing medications. This study examines the effectiveness of lamotrigine compared to placebo in reducing emotional instability of several types in borderline patients. The types of emotional instability studied involve anger, anxiety, depression, and elation. Subjects entering this 12 week study will be blind to whether they are receiving active medication or placebo. They will be asked to report levels of instability in their mood on a weekly basis. They will also be asked weekly to rate the intensity of other symptoms of borderline personality disorder symptoms, such as unstable relationships, self-harm, and impulsive behaviors.

Interventions

DRUGLamotrigine

Subject in active active drug group will receive lamotrigine tablets 12.5 per day for the first week of the study. Dose of lamotrigine can be increased to 25mg per day during the second week of the study and may be increased each week thereafter for the next 9 weeks by 25mg per day. Subjects in active treatment group will receive lamotrigine for total of 12 weeks

DRUGPlacebo

Subjects will receive 12.5mg of inert placebo per day during the first week of the study. Inert placebo can be increased to 25mg per day during the second week of the study and by 25mg per day each week for the next 9 weeks. Subjects can receive a total of 12 weeks of placebo.

Sponsors

GlaxoSmithKline
CollaboratorINDUSTRY
Mclean Hospital
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
TRIPLE (Subject, Investigator, Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
18 Years to 64 Years
Healthy volunteers
No

Inclusion criteria

* Clinical Diagnosis of Borderline Personality Disorder with high levels of emotional instability

Exclusion criteria

* Clinical diagnosis of Bipolar Disorder * Clinical diagnosis of psychiatric disorder related to general medical condition * Clinical diagnosis of substance abuse disorder within the last 60 days * Clinical diagnosis of psychotic disorder * Previous treatment with lamotrigine * Pregnancy or nursing * Currently hospitalized * Active suicidal or homicidal ideation

Design outcomes

Primary

MeasureTime frame
Changes in score of Affective Lability ScaleBaseline and then weekly for 12 weeks
Changes in the score of the Affective Lability Item of the Zanarini Rating Scale for Borderline Personality DisorderBaseline and then weekly for 12 weeks

Secondary

MeasureTime frame
Scores of individual items on the Zanarini Rating Scale for Borderline Personality DisorderBaseline and then weekly for 12 weeks

Countries

United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026