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PTSDPhase 4PTSDNCT00237393

Quetiapine Treatment for Post-Traumatic Stress Disorder (PTSD)

A Phase 4 study testing Quetiapine in people with PTSD, run by Ralph H. Johnson VA Medical Center at 2 sites in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The purpose of the study is to determine if quetiapine is effective in the treatment of PTSD. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
PTSD
What is being tested?
Quetiapine
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
80 participants
Where
2 sitesUnited States
Study dates
Aug 2003to Dec 2007
Phase
Phase 4
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Male or female patients 18 years of age or older of any ethnic background meeting Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition (DSM-IV) criteria for PTSD.
  • Score of at least 50 on the CAPS-SX at baseline.
  • Competent to give informed consent.
  • If female, patient should be using a medically approved contraceptive, or not otherwise be of childbearing potential.
  • Patients who have not taken medications or herbal remedies for a psychiatric indication within one week prior to the randomized phase.
  • Other medications, if any, must have been kept stable for at least one month prior to randomization.

Who cannot join

  • History of sensitivity to quetiapine
  • Use of antipsychotics, antidepressants, or benzodiazepines (except for short-term use during study as specified in Concomitant Medications section) within one week prior to randomization and throughout the study period.
  • Medical conditions that may prevent safe administration of quetiapine including clinically significant hepatic, cardiac, or pulmonary disease.
  • Medical disorders that may cause or exacerbate anxiety symptoms.
  • Alcohol or drug abuse or dependence within one month of study entry as defined by DSM-IV criteria.
  • Schizophrenia, schizoaffective disorder, or bipolar disorder.
Show all 9Show fewer
  • Suicidal or homicidal ideation or other clinically significant dangerousness
  • Currently seeking compensation or increase in compensation for the effects of the trauma.
  • Initiation or change in psychotherapy within 3 months of randomization.

Trial locations and contacts

2 sites in 1 country.

United States2 sites
  • NM VA Healthcare System

    Albuquerque, New Mexico, 87108

  • Ralph H. Johnson VAMC

    Charleston, South Carolina, 29401

Other trials in United States

About this study

Official title: A Randomized, Placebo-Controlled Trial of Quetiapine (Seroquel) Monotherapy in the Treatment of PTSD

The purpose of the study is to determine if quetiapine is effective in the treatment of PTSD.

Read the detailed description

Objective: To assess the impact of quetiapine on core PTSD symptoms and associated psychiatric comorbidity including depressive and positive and negative psychotic symptoms.

Research Design: 12-week, double-blind, placebo-controlled, randomized, fixed-flexible dose trial of quetiapine monotherapy.

Intervention: Eligible patients will be randomized to receive quetiapine starting at 25 mg daily or matching placebo. Dose adjustments (to a minimum of 50 mg or a maximum of 800 mg), will be made at the investigator's discretion and according to patient's clinical response.

Conditions
PTSD
Being tested
Quetiapine, Placebo
Keywords
PTSD, Posttraumatic stress disorder, Treatment, Quetiapine
Medical subject headings
Stress Disorders, Post-Traumatic

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • QuetiapineDrug

    Dosage initiated at 25 mg HS with gradual titration to target dose of 400 mg HS, up to maximum of 800 mg HS.

  • PlaceboDrug

    Dosage initiated at 25 mg HS with gradual titration to target dose of 400 mg HS, up to maximum of 800 mg HS.

Study groups in NCT00237393
Study groupRoleWhat they receive
1ExperimentalQuetiapine
Receives: Drug: Quetiapine
2Placebo comparatorNot described
Receives: Drug: Placebo

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Global scores on Clinician Administered PTSD Scale - One Week Symptom Version (CAPS-SX) at week 12

Secondary outcomes (13)
  1. Week 12 scores on Positive and Negative Syndrome Scale (PANSS)

  2. Hamilton Depression Rating Scale (HAMD)

  3. Hamilton Rating Scale of Anxiety (HAMA)

  4. Clinical Global Impression Severity Scale (CGI-S)

  5. Clinical Global Impression Improvement Scale (CGI-I)

  6. Davidson Trauma Scale (DTS)

  7. Pittsburgh Sleep Quality Inventory/Pittsburgh Sleep Quality Inventory Addendum (PSQI/PSQI-A)

  8. Quality of Life Enjoyment and Satisfaction Questionnaire (QLESQ)

  9. SDS

  10. Arizona Sexual Experience Scale (ASEX)

  11. AIMS

  12. BAS

  13. SAS

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted12 Oct 2005 (estimated)
  2. Study startAug 2003
  3. Study completionDec 2007

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 4
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Quadruple blind
Who is masked
Participant, Care provider, Investigator, Outcomes assessor
Enrolment
80 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00237393
Sponsor's protocol ID
0058
Other IDs
HR-10762
Acronym
PTSD
Status last verified
Oct 2005
First submitted
11 Oct 2005
Last updated
21 Feb 2008
Results posted
No
Data monitoring committee
No

Questions about this trial

What is this clinical trial studying?

A Phase 4 study testing Quetiapine in people with PTSD, run by Ralph H. Johnson VA Medical Center at 2 sites in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 6 inclusion and 9 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 21 Feb 2008. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 2 sites in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 4 studies take place after a treatment is approved, to learn more about its long-term benefits and risks in everyday use.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Global scores on Clinician Administered PTSD Scale - One Week Symptom Version (CAPS-SX) at week 12. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 21 Feb 2008.

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