Substance P Antagonist in the Treatment of Posttraumatic Stress Disorder
Public ClinicalTrials.gov record NCT00383786. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.
Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.
Official title
Evaluation of the Efficacy of the NK1 Antagonist GR205171 in Posttraumatic Stress Disorder
Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
This study, conducted at the NIH and the Mount Sinai School of Medicine, will examine the effectiveness of a substance P or NK1 antagonist study drug known as GR205171 in treating the symptoms of posttraumatic stress disorder (PTSD). People between 18 and 65 years of age who have been diagnosed with PTSD may be eligible for this study. Participants undergo the following tests and procedures: Treatment: Patients are tapered off current ineffective medications over 1 to 2 weeks. All participants receive placebo (sugar pill) at the start of the study. At some point within the first 3 weeks of the study, they are then randomly assigned either to take GR205171 or to continue with placebo for the remainder of the 10-week treatment period. Clinic visits: Patients come to the clinic once a week during treatment. The following procedures are done at various visits. * Interviews, self report questionnaires and psychiatric rating scales at every visit. * Physical examination, blood and urine tests. Blood is drawn up to 10 times during the study. Follow-up visits continue for up to 3 months after the end of the study, during which patients are offered standard clinical treatment.
Study identification
- NCT ID
- NCT00383786
- Recruitment status
- Completed
- Study type
- Interventional
- Phase
- Phase 2
- Enrollment
- 47 participants
Conditions and interventions
Conditions
Interventions
- NK1 Antagoist (GR205171) Drug
- Psychophysiology (Trauma Script) Procedure
- Psychophysiology (Verbal Threat) Procedure
- Psychophysiology (Fear Conditioning) Procedure
- Psychophysiology (Affective Modulation) Procedure
- Psychophysiology (Heart rate variability) Procedure
- Lumbar Puncture Procedure
- 24-hour plasma sampling Procedure
- MRI Procedure
Drug · Procedure
Eligibility (public fields only)
- Age range
- 18 Years to 65 Years
- Sex
- All
- Healthy volunteers
- Healthy volunteers not accepted
This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.
Study timeline
- Start date
- Aug 31, 2006
- Primary completion
- May 31, 2009
- Completion
- May 31, 2009
- Last update posted
- Jul 30, 2019
2006 – 2009
United States locations
- U.S. sites
- 2
- U.S. states
- 2
- U.S. cities
- 2
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| National Institutes of Health Clinical Center, 9000 Rockville Pike | Bethesda | Maryland | 20892 | — |
| Mt. Sinai Medical Center | New York | New York | 10029-0574 | — |
Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.
About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT00383786, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
- What this page does not do
- No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
- Where the data comes from
- Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
- Last refresh
- Last update posted Jul 30, 2019 · Synced Sep 2, 2026
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Open the official record
The complete protocol, eligibility criteria, and contact information for NCT00383786 live on ClinicalTrials.gov.