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Enhancing Extinction Learning in Post Traumatic Stress Disorder (PTSD)

Enhancing Extinction Learning in Post Traumatic Stress Disorder (PTSD)

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT01188694
Acronym
HELP
Enrollment
42
Registered
2010-08-25
Start date
2009-09-30
Completion date
2013-04-30
Last updated
2017-06-14

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

Conditions

Chronic Posttraumatic Stress Disorder

Brief summary

Posttraumatic stress disorder (PTSD) is a condition that involves intense memories of a traumatic event and intense, persistent feelings of anxiety. There are several effective therapies for PTSD, but they are often time consuming. The investigators want to see if the investigators can shorten treatment time while keeping therapy effective by adding a medication called methylene blue, USP, taken orally as a pill, to the therapy. The specific aims are: 1) To see whether medication plus psychotherapy improves PTSD symptoms more than placebo plus psychotherapy or a waitlist; 2) To examine the long-term outcome of those receiving medication plus psychotherapy 1 and 3 months after treatment has ended; 3) To examine whether medication plus psychotherapy helps with depression, trauma-related cognitions, and functioning.

Detailed description

The psychotherapy the investigators are offering in this study is a type of cognitive behavioral therapy called imaginal exposure. In imaginal exposure, the investigators encourage the client to approach the memory of the trauma by recounting the trauma story to the therapist and discussing his or her reactions to the memory.

Interventions

DRUGPsychotherapy plus Methylene Blue, USP

This treatment involves daily visits with a therapist for 50 to 60 minutes for a total of six sessions. At the end of each session, 260 mg of methylene blue, USP will be given.

BEHAVIORALPsychotherapy plus Placebo

This treatment involves daily visits with a therapist for 50 to 60 minutes for a total of six sessions. At the end of each session, capsules containing the placebo will be given.

BEHAVIORALDelayed Psychotherapy

Individuals must wait approximately five to six weeks to start treatment. They will come in for two check-in appointments before starting treatment. Treatment will consist of ten twice-weekly psychotherapy sessions (90-120 min each session).

Sponsors

University of Texas
CollaboratorOTHER
University of Pennsylvania
CollaboratorOTHER
National Institute of Mental Health (NIMH)
CollaboratorNIH
University of Washington
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
18 Years to 65 Years
Healthy volunteers
No

Inclusion criteria

1. Current primary PTSD diagnosis based on DSM-IV criteria, with a minimum duration of 12 weeks since the traumatic event. 2. Between the age of 18 and 65.

Exclusion criteria

1. Current diagnosis of schizophrenia, delusional disorder, or organic mental disorder as defined by the DSM-IV. 2. Current diagnosis of bipolar disorder, depression with psychotic features, or depression severe enough to require immediate psychiatric treatment (i.e., serious suicide risk with intent and plan). 3. Current diagnosis of alcohol or substance dependence within the 3 previous months. 4. Unwilling or unable to discontinue current trauma-focused psychotherapy or psychotropic medication (at least 1 month medication free). 5. Ongoing intimate relationship with the perpetrator (in assault-related PTSD cases). 6. Unstable cardiovascular, autoimmune, endocrine, neurological, renal, hepatic, retinal, gastrointestinal, or hematological disorder or current seizure disorder. 7. Pregnant or nursing females; females of childbearing potential who are unwilling or unable to use an acceptable method of contraception for the duration of active treatment. 8. A history of hypersensitivity or allergy to MB. 9. Any condition possibly affecting drug absorption (e.g., gastrectomy). 10. Glucose-6-phosphate dehydrogenase deficiency. 11. Other severe acute or chronic medical or psychiatric condition or laboratory abnormality that, in the judgment of the Medical Directors, would make the participant inappropriate for entry.

Design outcomes

Primary

MeasureTime frameDescription
PTSD Symptom Severity-Interview (PSS-I)Pre-treatment, post-treatment (4 weeks from pre-), 1-month follow-up (from post-), and 3-month follow-ups (from post-)PTSD Symptom Scale - Interview Version, higher scores represent higher PTSD severity (range 0 - 51)

Countries

United States

Participant flow

Participants by arm

ArmCount
Psychotherapy Plus Methylene Blue, USP
Psychotherapy plus Methylene Blue, USP: This treatment involves daily visits with a therapist for 50 to 60 minutes for a total of six sessions. At the end of each session, 260 mg of methylene blue, USP will be given.
15
Psychotherapy Plus Placebo
Psychotherapy plus Placebo: This treatment involves daily visits with a therapist for 50 to 60 minutes for a total of six sessions. At the end of each session, capsules containing the placebo will be given.
16
Delayed Psychotherapy
Delayed Psychotherapy: Individuals must wait approximately five to six weeks to start treatment. They will come in for two check-in appointments before starting treatment. Treatment will consist of ten twice-weekly psychotherapy sessions (90-120 min each session).
11
Total42

Baseline characteristics

CharacteristicPsychotherapy Plus Methylene Blue, USPPsychotherapy Plus PlaceboDelayed PsychotherapyTotal
Age, Categorical
<=18 years
0 Participants0 Participants0 Participants0 Participants
Age, Categorical
>=65 years
0 Participants0 Participants0 Participants0 Participants
Age, Categorical
Between 18 and 65 years
15 Participants16 Participants11 Participants42 Participants
Region of Enrollment
United States
15 participants16 participants11 participants42 participants
Sex: Female, Male
Female
10 Participants12 Participants8 Participants30 Participants
Sex: Female, Male
Male
5 Participants4 Participants3 Participants12 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
deaths
Total, all-cause mortality
— / —— / —— / —
other
Total, other adverse events
4 / 154 / 161 / 11
serious
Total, serious adverse events
0 / 150 / 160 / 11

Outcome results

Primary

PTSD Symptom Severity-Interview (PSS-I)

PTSD Symptom Scale - Interview Version, higher scores represent higher PTSD severity (range 0 - 51)

Time frame: Pre-treatment, post-treatment (4 weeks from pre-), 1-month follow-up (from post-), and 3-month follow-ups (from post-)

Population: Intent to Treat

ArmMeasureGroupValue (MEAN)Dispersion
Psychotherapy Plus Methylene Blue, USPPTSD Symptom Severity-Interview (PSS-I)1 Month Follow-up10.33 units on a scaleStandard Deviation 3.77
Psychotherapy Plus Methylene Blue, USPPTSD Symptom Severity-Interview (PSS-I)Pre-Treatment32.07 units on a scaleStandard Deviation 6.17
Psychotherapy Plus Methylene Blue, USPPTSD Symptom Severity-Interview (PSS-I)Post-Treatment17.10 units on a scaleStandard Deviation 10.57
Psychotherapy Plus Methylene Blue, USPPTSD Symptom Severity-Interview (PSS-I)3 Month Follow-up7.63 units on a scaleStandard Deviation 5.53
Psychotherapy Plus PlaceboPTSD Symptom Severity-Interview (PSS-I)Pre-Treatment31.38 units on a scaleStandard Deviation 6.88
Psychotherapy Plus PlaceboPTSD Symptom Severity-Interview (PSS-I)3 Month Follow-up10.93 units on a scaleStandard Deviation 9.95
Psychotherapy Plus PlaceboPTSD Symptom Severity-Interview (PSS-I)1 Month Follow-up13.33 units on a scaleStandard Deviation 9.15
Psychotherapy Plus PlaceboPTSD Symptom Severity-Interview (PSS-I)Post-Treatment14.67 units on a scaleStandard Deviation 9.27
Delayed PsychotherapyPTSD Symptom Severity-Interview (PSS-I)1 Month Follow-up28.33 units on a scaleStandard Deviation 7.43
Delayed PsychotherapyPTSD Symptom Severity-Interview (PSS-I)3 Month Follow-up7.25 units on a scaleStandard Deviation 9.82
Delayed PsychotherapyPTSD Symptom Severity-Interview (PSS-I)Post-Treatment29.60 units on a scaleStandard Deviation 8.4
Delayed PsychotherapyPTSD Symptom Severity-Interview (PSS-I)Pre-Treatment32.73 units on a scaleStandard Deviation 7.24

Source: ClinicalTrials.gov · Data processed: Feb 26, 2026