NCT01127568

Brief Summary

Objective: To use propranolol to treat established chronic post traumatic stress disorder (PTSD) by reducing reconsolidation of the reactivated trauma memory. Hypothesis: A series of treatments with propranolol, in comparison to placebo, will produce a significant reduction in PTSD symptom severity in participants with chronic PTSD. Study Design: This is a double-blind, placebo-controlled, randomized study. Methodology: Twenty-five participants per group with chronic PTSD will be recruited. On their first visit psychodiagnostic and psychometric evaluation will take place. In addition, script-preparation for the script-driven imagery procedure will occur. Following this, the participants will return each week for a period of 6 weeks to participate in the reactivation sessions with propranolol or placebo (participants assigned to the propranolol condition will receive propranolol throughout, and participants assigned to the placebo condition will receive placebo throughout). Two weeks later, the participants will return for a follow-up of the psychodiagnostic and psychometric evaluation, as well as psychophysiological assessment using script-driven imagery procedure. Data Analysis: A two-factor analysis of variance (ANOVA) for repeated measures will be performed on study completers. The Drug factor will have two levels: propranolol and placebo. The Time factor will have two levels: pre-treatment and post-treatment. We predict a significant Drug x Time interaction, more precisely a greater decrease in PTSD severity in the propranolol than in the placebo group. The psychophysiological data will be contrasted to a normative cutoff score for PTSD.

Trial Health

43
At Risk

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
50

participants targeted

Target at P25-P50 for phase_2

Timeline
Completed

Started Feb 2010

Geographic Reach
1 country

1 active site

Status
unknown

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

February 1, 2010

Completed
2 months until next milestone

First Submitted

Initial submission to the registry

April 13, 2010

Completed
1 month until next milestone

First Posted

Study publicly available on registry

May 21, 2010

Completed
3 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

September 1, 2010

Completed
1.8 years until next milestone

Study Completion

Last participant's last visit for all outcomes

June 1, 2012

Completed
Last Updated

May 21, 2010

Status Verified

February 1, 2010

Enrollment Period

7 months

First QC Date

April 13, 2010

Last Update Submit

May 20, 2010

Conditions

Keywords

Post-Traumatic Stress DisordersPosttraumatic Stress DisordersPTSDStress Disorder, Post TraumaticStress Disorders, PosttraumaticChronic Post Traumatic Stress Disorder

Outcome Measures

Primary Outcomes (3)

  • Clinician-Administered PTSD Scale (CAPS) for DSM-IV

    Each participant will be administered the following structured diagnostic interview instruments by a doctoral-level clinician: Clinician-Administered PTSD Scale (CAPS). The CAPS is widely regarded as the state-of-the-art structured clinical interview instrument for PTSD. It yields a categorical (present/absent) score according to DSM-IV PTSD criteria as well as severity scores for each of the 17 DSM-IV PTSD symptoms, for each of the three PTSD symptom clusters (re-experiencing, avoidance, hyperarousal) and for total PTSD.

    Session of Week 0

  • Clinician-Administered PTSD Scale (CAPS) for DSM-IV

    Each participant will be administered the following structured diagnostic interview instruments by a doctoral-level clinician: Clinician-Administered PTSD Scale (CAPS). The CAPS is widely regarded as the state-of-the-art structured clinical interview instrument for PTSD. It yields a categorical (present/absent) score according to DSM-IV PTSD criteria as well as severity scores for each of the 17 DSM-IV PTSD symptoms, for each of the three PTSD symptom clusters (re-experiencing, avoidance, hyperarousal) and for total PTSD.

    Session of Week 7

  • Clinician-Administered PTSD Scale (CAPS) for DSM-IV

    Each participant will be administered the following structured diagnostic interview instruments by a doctoral-level clinician: Clinician-Administered PTSD Scale (CAPS). The CAPS is widely regarded as the state-of-the-art structured clinical interview instrument for PTSD. It yields a categorical (present/absent) score according to DSM-IV PTSD criteria as well as severity scores for each of the 17 DSM-IV PTSD symptoms, for each of the three PTSD symptom clusters (re-experiencing, avoidance, hyperarousal) and for total PTSD.

    Session of Week 26

Secondary Outcomes (14)

  • Mini International Neuropsychiatric Interview (MINI)

    Session of Week 6

  • Peritraumatic Distress Inventory (PDI)

    Session of Week 0

  • The Peritraumatic Dissociative Experiences Questionnaire

    Session of Week 0

  • PTSD Check List (PCL) civilian version

    Session of Week 0

  • Script-driven imagery psychophysiological measurement

    Session of Week 7

  • +9 more secondary outcomes

Study Arms (2)

Propranolol

EXPERIMENTAL

Propranolol is a beta-blocker (blocking beta- adrenergic receptors) that reduces sympathetic activity. It is a well-known drug typically prescribed to individuals suffering from hypertension, tachycardia, cardiac arrhythmia, tremors, thyroid disease, or migraine.

Drug: Propranolol is available in generic form as the Wyeth product under the trade name Inderal.

Placebo

PLACEBO COMPARATOR

The placebo is an inactive capsule that will have no medication effect, but looks exactly like the medication.

Drug: Propranolol is available in generic form as the Wyeth product under the trade name Inderal.

Interventions

The study medication will consist of a dose of 2/3 mg/Kg of short-acting propranolol or placebo, followed 2 hours later by a dose of 1 mg/Kg of long-acting or placebo. The medication will be prescribed by the clinic's physician after medical check-up. A nurse will monitor blood pressure. According to, 40 mg of short-acting propranolol dose should produce a peak blood level of approximately 25 ng/ml at 2 hours, which the additional 60 mg long-acting propranolol should further increase by no more than 5ng. The decay of the blood level induced by the 40 mg short-acting dose after its 2-hour peak will outstrip the further rise induced by the 60 mg long-acting proposal dose, so that blood levels will not rise above this peak 30 ng/ml, which is within the therapeutic clinical range. If the participant tolerates the combination dose without any difficulty, during subsequent sessions, both the short- and long-acting doses will be given together immediately after memory reactivation.

PlaceboPropranolol

Eligibility Criteria

Age18 Years - 65 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Being between the ages of 18-65
  • Having gone through a potentially traumatic event.

You may not qualify if:

  • Not suffering from chronic PTSD
  • Systolic blood pressure \<100 mm Hg;
  • Heart rate below 55 beats per minute;
  • Previous adverse reaction to, or non-compliance with, a β-blocker;
  • Current use of a medication that may involve potentially dangerous interactions with propranolol, including, other β-blockers, antiarrhythmics, calcium channel blockers, and potent P450 2D6 inhibitors, e.g., fluoxetine, paroxetine, miconazole, sulconazole, metoclopramide, quinidine, ticlopidine, and ritonavir. Because the protocol does not require to take large doses of propranolol on a daily basis, the decision to exclude participants will be taken by the physician on a case-by-case basis;
  • Pregnancy or breast feeding. Although propranolol can be used during pregnancy we will advise women not to participate in they are or become pregnant. Women breastfeeding will also be advised not to participate because propranolol has been found in human milk. That the quantity absorbed by the breast feeding infant is inferior to 1% of the therapeutic dose (Vidal, 2008).
  • Contraindicating psychiatric condition, including current psychotic, bipolar, melancholic, or substance dependence or abuse disorder; suicidality;
  • Initiation of, or change in, psychotropic medication within the previous 2 months. For participants receiving stable doses of pharmacotherapy, they and their providers will be asked not to change the regimen except in clinically urgent circumstances; if this becomes necessary, a decision will be made on a case-by-case basis with regard to retaining the participant or terminating participation;
  • Current participation in any psychotherapy (other than strictly supportive). Participants will be asked not to initiate psychotherapy during the course of the proposed study except in clinically urgent circumstances; if this becomes necessary, a decision will be made on a case-by-case basis with regard to retaining the participant or terminating participation;
  • Inability to understand the study's procedures, risks, and side effects, or to otherwise give informed consent for participation;
  • Understanding neither French nor English.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Douglas Mental Health University Institute, McGill University

Montreal, Quebec, H4H 1R3, Canada

RECRUITING

Related Publications (2)

  • Brunet A, Orr SP, Tremblay J, Robertson K, Nader K, Pitman RK. Effect of post-retrieval propranolol on psychophysiologic responding during subsequent script-driven traumatic imagery in post-traumatic stress disorder. J Psychiatr Res. 2008 May;42(6):503-6. doi: 10.1016/j.jpsychires.2007.05.006. Epub 2007 Jun 22.

    PMID: 17588604BACKGROUND
  • Brunet A, Saumier D, Liu A, Streiner DL, Tremblay J, Pitman RK. Reduction of PTSD Symptoms With Pre-Reactivation Propranolol Therapy: A Randomized Controlled Trial. Am J Psychiatry. 2018 May 1;175(5):427-433. doi: 10.1176/appi.ajp.2017.17050481. Epub 2018 Jan 12.

Related Links

MeSH Terms

Conditions

Stress Disorders, Post-Traumatic

Condition Hierarchy (Ancestors)

Stress Disorders, TraumaticTrauma and Stressor Related DisordersMental Disorders

Study Officials

  • Alain Brunet, Ph.D.

    Douglas Mental Health University Institute, McGill University

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Lening A. Olivera Figueroa, Psy.D.

CONTACT

Study Design

Study Type
interventional
Phase
phase 2
Allocation
RANDOMIZED
Masking
QUADRUPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
Purpose
TREATMENT
Intervention Model
CROSSOVER
Sponsor Type
OTHER

Study Record Dates

First Submitted

April 13, 2010

First Posted

May 21, 2010

Study Start

February 1, 2010

Primary Completion

September 1, 2010

Study Completion

June 1, 2012

Last Updated

May 21, 2010

Record last verified: 2010-02

Locations