Aripiprazole in the Treatment of Post-Traumatic Stress Disorder Symptoms

Posttraumatic Stress Disorder Clinical Trial

— AripipPTSD  

Official title:

Phase 3 Study of Aripriprazole in the Treatment of Post-Traumatic Stress Disorder Symptoms

Clinical Trial Details — Status: Completed

Administrative data

• NCT number: NCT00440713
• Other study ID #: 01
• Status: Completed
• Phase: Phase 3
• First received: February 22, 2007
• Last updated: February 23, 2007
• Start date: January 2004
• Est. completion date: March 2006

Study information

• Verified date: February 2007
• Source: Federal University of São Paulo
• Contact: n/a
• Is FDA regulated: No
• Health authority: Brazil: National Committee of Ethics in Research
• Study type: Interventional

Clinical Trial Summary

32 outpatients with a Posttraumatic Stress Disorder were included in a randomized comparative single-blind study to study the efficacy of aripiprazole to treat post-traumatic stress symptoms.

The hypothesis is that aripiprazole has an efficacy to reduce PTSD symptoms

Description:

All patients which agreed to participate and signed the informed consent, were interviewed to be enrolled if they filled the inclusion and exclusion criteria.

The inclusion criteria were: both genders, aged 18 to 60, diagnosis of PTSD DSM-IV criteria by a trained psychiatrist after the application of the SCID-I. Women must be using contraceptive methods during the study. Women had to be using contraceptive methods during the study. The exclusion criteria were to have a diagnostic of the following conditions: schizophrenic disorder, delusional disorder, bipolar disorder, psychotic depression episode and psychoactive substance dependency disorder in the previous 6-month period, instable medical diseases, and pregnancy.

All included patient was submitted at baseline to a socio-demographic inventory and to a psychometric evaluation, the latter were reapplied at weeks 8 and 16. The psychometric evaluation consist of self-report instruments: CAPS to measure PTSD symptoms severity, the Beck Depression Inventory (BDI) [29] and the Beck Anxiety Inventory (BAI) [30] to measure the depressive and the anxiety symptoms severity, the Medical Outcome Scale short form (MOS-SF-36) [31] and the Social adjustment scale (SAS) [32] to evaluate quality of life and social adjustment. A 7.5mg single dose of aripiprazole was prescribed, and the patient was evaluated each two weeks and dose could be increased or decreased depending of their tolerability to side effects. After 16-week the drug was discontinued over a two week period.

Thirty-two outpatients were included after filling the inclusion and exclusion criteria. Twenty-four (75%) were women and 8 (25%) men. Eighteen (56.3%) were married, eight (25%) single, and six (18.7%) were widowed or divorced. Their mean age was 38.41 (+/-10.97) years old, and the mean time since trauma happened was 50.87 (+/-77.21) months. Three (9.4%) patients have been victims of sexual abuse, four (12.5%) kidnapped, four (12.5%) held hostage in prison rebellion, 7 (21.88%) lost a close person to homicide, 8 (18.75%), suffered a homicide attempt.

Nine (28%) patients discontinued the treatment before the second assessment. Six (18.7%) patients discontinued the medication because of adverse events (anxiety, psychomotor agitation, nausea, and insomnia), three (3) patients abandoned the treatment and we lost contact with them. Six (6) patients had at least a second assessment, but did not complete 16-week trial, three due to a complete remission and a resistance to continue on the study and three discontinued due to lack of clinical improvement. The BDI baseline mean score from the dropouters was 28.7 (+/- 12.7) higher compared to the completers 25 (+/- 11.2) showing a statistically significant difference (t=.2167 p<.02) The mean dose was 9.6 (+/-4.3) mg/day, with the dose range of 3.75 to 15 mg day.

An intention-to-treat analysis using the Last Observation Carried Forward (LOCF) including the baseline outcome data found a CAPS mean score at baseline of 82.7 (+/- 23.1) and 51.4 (+/-31.4) on endpoint, over 38% reduction from the baseline. Comparing the data using the t test the difference between before and after the treatment was statistically significant (t=.000002, p<.001 – Table and Graph 1).

When using a concept of 30% decrease at CAPS mean score from baseline as a response to treatment, 17 (53.1%) patients have a response, and when using a more restrictive concept of 50% decrease at CAPS mean score 13 (40.6%) patients responded to the treatment.

The mean BAI score at baseline was 31.7 (+/- 13.4) and at the end-point were 25.4 (+/-18.2) (t=.01, p<.05) The SAS mean index score at baseline was 2.4 (+/-.45) and on the endpoint 2.27 (+/- .57) (t=.033, p<.05). The SF-36 mean score at baseline was 76.6 (+/-14.11) and at baseline 94.01 (+/- 25.06) (t=.0006, p<.05). On all measures, excepted on BDI, the differences between baseline and endpoint means were statistically significant. On the BDI with a mean score at baseline of 26.06 (+/- 11.6) and at the end-point of 21.35 (+/-12.6), the difference wasn’t statistically significant (t=.58, p<.05).

Recruitment information / eligibility

• Status: Completed
• Enrollment: 40
• Est. completion date: March 2006
• Accepts healthy volunteers: No
• Gender: Both
• Age group: 18 Years to 60 Years

Eligibility

Inclusion Criteria:

• Clinical diagnosis of PTSD (after SCID-I application by a trained psychiatrist).

• Use of an effective contraceptive method when the subject is women with sexual activity and with risk of pregnancy.

Exclusion Criteria:

• Clinical diagnosis of schizophrenic, delusional, psychotic depression, schizoaffective, bipolar or borderline personality (after SCID-I application by the a trained psychiatrist).

• Clinical diagnosis of psychoactive substance dependence within 6-months before the study enrollment.

• To have decompensated medical diagnostics needing urgent treatment

• being pregnant.

• using psychoactive drugs.

Study Design

Allocation: Randomized, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Single Group Assignment, Masking: Single Blind, Primary Purpose: Treatment

Related Conditions & MeSH terms

• Posttraumatic Stress Disorder
• Stress Disorders, Post-Traumatic
• Stress Disorders, Traumatic

Intervention

Drug:
• Aripiprazole

Behavioral:
• Interpersonal Therapy

Locations

Country	Name	City	State
n/a

Sponsors (1)

Lead Sponsor	Collaborator
Federal University of São Paulo

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	CAPS (Clinician Administered Posttraumatic Scale) score (PTSD symptoms)
Secondary	Beck Depression Inventory
Secondary	Beck Anxiety Inventory
Secondary	Social Adjustment Scale
Secondary	Global Assessment Functioning
Secondary	MOS SF-36, quality of life
Secondary	Dropout
Secondary	complete the trial