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Treating Suicidal Behavior and Self-Mutilation in People With Borderline Personality Disorder

Treating Suicidal Behavior and Self-Mutilation in Borderline Personality Disorder

Status
Completed
Phases
Phase 4
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00533117
Enrollment
91
Registered
2007-09-21
Start date
2001-03-31
Completion date
2012-12-31
Last updated
2024-01-05

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

Conditions

Borderline Personality Disorder

Keywords

suicide, self-mutilation, fluoxetine, placebo, dialectical behavior therapy, supportive therapy

Brief summary

This study will determine whether dialectical behavior therapy and fluoxetine are more effective combined or alone in treating people with borderline personality disorder.

Detailed description

Borderline personality disorder (BPD) can be a serious and very complex condition. BPD affects 2% to 3% of the population and is more commonly diagnosed in young women. BPD is characterized by mood swings, impulsive behavior, difficulty controlling emotions, and acting out inappropriately either through self-harm or attempts of suicide. Other illnesses such as depression and anxiety are also very common in people diagnosed with BPD. Various treatments exist that aim to reduce self-harm and suicide among people with BPD. Dialectical behavior therapy (DBT), an outpatient behavioral therapy shown to help self-injurious patients with BPD, has become a popular treatment. Another useful treatment, the antidepressant fluoxetine, can help to regulate mood and diminish suicidal or self-destructive urges. Although combination treatments of DBT and fluoxetine are common, little research has been conducted on the effectiveness of this kind of combined treatment. The purpose of this study is to determine whether DBT and fluoxetine are more effective combined or alone in treating people with BPD. All participants in this double-blind study will receive a psychiatric and medication evaluation prior to starting treatment. Participants taking psychiatric medications prior to the study will be slowly withdrawn from the medications over a period of 2 to 6 weeks. Psychological interviews and self-report questionnaires will be administered, taking approximately 5 to 10 hours to complete. Once all preliminary interviews and evaluations have been completed, each participant will be randomly assigned to one of the four following treatment groups: * Group 1 will receive DBT and fluoxetine (Prozac). DBT teaches patients new skills to replace old coping strategies such as suicide attempts and self-injury. Participants will work with an individual therapist for 1 hour a week to learn these new skills. This group will also be expected to keep a weekly diary that will discuss their current mood; suicidal and self-harming urges; and possible use of medications, drugs, and alcohol. Once a week participants will engage in a 90-minute skills training group to review the skills learned during therapy. Homework will be assigned between sessions to review these new strategies and skills. Participants will meet regularly with a psychiatrist to receive fluoxetine, discuss any side effects, and adjust dosage if necessary. * Group 2 participants will receive DBT and placebo medication. * Group 3 participants will receive supportive therapy and fluoxetine. Supportive therapy is nondirective and focuses on strengths, coping abilities, and current areas of difficulty in life in an unstructured format. Participants in this group will meet with an individual therapist each week for 50 minutes. Patients will also be assigned to a psychiatrist to receive fluoxetine every other week. * Group 4 participants will receive supportive psychotherapy and placebo medication. All patients participating in this study will continue treatment for 12 months and will be evaluated bimonthly. After 12 months, participants will undergo neuropsychological testing to identify any changes that occurred over the last year. The clinical status of each participant will also be assessed at 18 and 24 months.

Interventions

DRUGFluoxetine

Fluoxetine is administered in standard dosing 20, 40, 60, 80 mg increased monthly if tolerated

BEHAVIORALDialectical Behavior Therapy

Dialectical Behavior Therapy is a form of CBT originally developed to treat suicidal and self injuring individuals with borderline personality disorder. Treatment consists of 2 sessions/week: individual psychotherapy and skills training group.

BEHAVIORALSupportive psychotherapy

Supportive therapy is a manualized form of psychotherapy designed to enhance individual's strengths and coping mechanisms while reducing distress.

Sponsors

National Institute of Mental Health (NIMH)
CollaboratorNIH
New York State Psychiatric Institute
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 55 Years
Healthy volunteers
No

Inclusion criteria

* Meets criteria for diagnosis of borderline personality disorder * History of at least one suicide attempt or self-mutilation episode 12 months prior to study entry * Experiences continued urges to self-mutilate or attempt suicide * Stable living situation * Use of effective birth control if sexually active * Clinically stable enough to tolerate placebo condition * Not participating in other forms of treatment during the study

Exclusion criteria

* Any current organic mental syndromes, lifetime schizophrenic or bipolar disorders, psychotic disorders, or mental retardation * Inability to complete psychiatric interview due to lack of cooperation or lack of comprehension * Unable to tolerate fluoxetine or DBT * Currently receiving treatment for an acute medical illness or other debilitating problem, including substance abuse or anorexia nervosa * History of major depression lasting more than 3 months * Current Hamilton depression score above 22 and not receiving treatment * Pregnant or breastfeeding

Design outcomes

Primary

MeasureTime frameDescription
Suicide AttemptsAssessed bimonthlySuicide attempt count total over the course of the 12 month treatment period (sum of 6 bimonthly assessments during the treatment phase)

Countries

United States

Participant flow

Recruitment details

Participants were recruited from the emergency department, clinician referrals and advertisements. Recruitment period ended 6 months prior to study end date.

Pre-assignment details

91 participants signed consent, 86 were randomized, 11 participants dropped out prior to treatment start. Therefore 75 participants remained, accounting for the discrepancy between the original 91 participants and the final count of 75. Participants were washed out of all psychotropic medications. Benzodiazepine is permitted for sleep.

Participants by arm

ArmCount
Dialectical Behavior Therapy Fluoxetine
Dialectal behavior therapy (DBT) is a form of Cognitive behavior therapy targeting suicidal and non-suicidal self injury in borderline personality disorder and is delivered over a 12 month period,and fluoxetine, an SSRI that is given in standard dosing 20, 40, 60, 80 mg for 12 months. Fluoxetine: Fluoxetine is administered in standard dosing 20, 40, 60, 80 mg increased monthly if tolerated Dialectical Behavior Therapy: Dialectical Behavior Therapy is a form of CBT originally developed to treat suicidal and self injuring individuals with borderline personality disorder. Treatment consists of 2 sessions/week: individual psychotherapy and skills training group.
18
Dialectical Behavior Therapy Placebo
Dialectal behavior therapy and placebo Dialectal behavior therapy (DBT) is a form of Cognitive behavior therapy targeting suicidal and non-suicidal self injury in borderline personality disorder and is delivered over a 12 month period, and placebo for fluoxetine, an SSRI that is given in standard dosing 20, 40, 60, 80 mg for 12 months. Dialectical Behavior Therapy: Dialectical Behavior Therapy is a form of CBT originally developed to treat suicidal and self injuring individuals with borderline personality disorder. Treatment consists of 2 sessions/week: individual psychotherapy and skills training group.
19
Supportive Therapy Fluoxetine
Supportive psychotherapy and fluoxetine Supportive therapy is a manualized psychotherapy aimed at strengthening coping skills and is delivered over a 12 month period, and fluoxetine, an SSRI that is given in standard dosing 20, 40, 60, 80 mg for 12 months. Fluoxetine: Fluoxetine is administered in standard dosing 20, 40, 60, 80 mg increased monthly if tolerated Supportive psychotherapy: Supportive therapy is a manualized form of psychotherapy designed to enhance individual's strengths and coping mechanisms while reducing distress.
20
Supportive Therapy Placebo
Supportive psychotherapy and placebo See above for descriptions. Supportive psychotherapy: Supportive therapy is a manualized form of psychotherapy designed to enhance individual's strengths and coping mechanisms while reducing distress.
18
Total75

Baseline characteristics

CharacteristicDialectical Behavior Therapy FluoxetineDialectical Behavior Therapy PlaceboSupportive Therapy FluoxetineSupportive Therapy PlaceboTotal
Age, Continuous28.6 years
STANDARD_DEVIATION 6.9
29.1 years
STANDARD_DEVIATION 8.3
32.3 years
STANDARD_DEVIATION 8.6
31.8 years
STANDARD_DEVIATION 11.2
30.2 years
STANDARD_DEVIATION 8.7
Sex: Female, Male
Female
15 Participants13 Participants17 Participants13 Participants58 Participants
Sex: Female, Male
Male
3 Participants6 Participants3 Participants5 Participants17 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
EG003
affected / at risk
deaths
Total, all-cause mortality
— / —— / —— / —— / —
other
Total, other adverse events
0 / 180 / 200 / 190 / 18
serious
Total, serious adverse events
1 / 182 / 200 / 190 / 18

Outcome results

Primary

Suicide Attempts

Suicide attempt count total over the course of the 12 month treatment period (sum of 6 bimonthly assessments during the treatment phase)

Time frame: Assessed bimonthly

Population: Suicidal and/or self injuring individuals with borderline personality disorder.

ArmMeasureValue (NUMBER)
Dialectical Behavior Therapy With FluoxetineSuicide Attempts2 suicide attempt
Dialectical Behavior Therapy With PlaceboSuicide Attempts1 suicide attempt
Supportive Therapy With FluoxetineSuicide Attempts4 suicide attempt
Supportive Therapy With PlaceboSuicide Attempts1 suicide attempt

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