MDMA-Assisted CBCT for PTSD vs CBCT RCT

Post Traumatic Stress Disorder Clinical Trial

Official title:

A Randomized Trial of MDMA-Assisted Cognitive-Behavioural Conjoint Therapy (CBCT) Versus CBCT in Dyads in Which One Member Has Posttraumatic Stress Disorder (PTSD)

Clinical Trial Details — Status: Recruiting

Administrative data

• NCT number: NCT06044675
• Other study ID #: ICAPT1
• Status: Recruiting
• Phase: Phase 2
• Start date: October 15, 2023
• Est. completion date: October 15, 2026

Study information

• Verified date: April 2024
• Source: Remedy
• Contact: Hajara Abdirahman, BS
• Phone: 4372914747
• Email: research[@]remedyinstitute.ca
• Is FDA regulated: No
• Study type: Interventional

Clinical Trial Summary

This study aims to evaluate the safety, feasibility, acceptability, and effectiveness of MDMA-assisted Cognitive-Behavioral Conjoint Therapy (CBCT) versus CBCT alone for the treatment of Post-Traumatic Stress Disorder (PTSD). PTSD is a debilitating condition that significantly impacts interpersonal relationships and the functioning of individuals and their loved ones. There is also a well-established reciprocal relationship between interpersonal relationships, PTSD, and recovery.

CBCT is a manualized treatment for PTSD that simultaneously addresses PTSD symptoms and relationship satisfaction. It provides dyads with behavioral tools to navigate PTSD-related challenges, as well as the knowledge behind PTSD and how it impacts relationships. Previous research has demonstrated the efficacy of CBCT in improving PTSD symptoms, partner functioning, and relationship satisfaction in both distressed and non-distressed dyads.

MDMA is a drug commonly used recreationally that has been increasingly studied because of its ability to reduce the impact of PTSD symptoms. The effects of MDMA are reduced fear, enhanced communication, trust and introspection, and increased empathy and compassion. The effects of MDMA create a state that enhances the positive effects of therapy by increasing the ability to tolerate negative emotions and allowing clients to stay engaged in therapy without being overwhelmed by the intense emotions surrounding the memories of traumatic events. It is believed that MDMA may help promote the effects of CBCT due to its ability to induce empathy and interpersonal openness.

This randomized study is the second study designed to explore the efficacy of combining MDMA-assisted therapy with CBCT. This study will enroll 30 dyads, where one individual has symptoms of PTSD. Participants will undergo a 7-week psychotherapy course, in MDMA-assisted CBCT or CBCT alone. In the MDMA-assisted CBCT, participants will go through CBCT sessions, and two doses of MDMA will be used as an adjunct to psychotherapy. Participants assigned to the CBCT-only condition will go through CBCT sessions and will have the opportunity to crossover and receive the two MDMA sessions after follow-up. The primary goal of this research is to contribute to the literature on MDMA-assisted CBCT by investigating its feasibility, safety, acceptability, and effectiveness, and by comparing it to active PTSD treatments.

Recruitment information / eligibility

• Status: Recruiting
• Enrollment: 60
• Est. completion date: October 15, 2026
• Est. primary completion date: December 31, 2025
• Accepts healthy volunteers: Accepts Healthy Volunteers
• Gender: All
• Age group: 18 Years to 80 Years

Eligibility

Inclusion Criteria

• Participant with PTSD

1. Participant with PTSD

2. Meet criteria for PTSD

3. Have a close other person who is able and willing to participate in this study

4. Are at least 18 years old

5. Are a resident of Ontario and live within the Greater Toronto Area (GTA)

6. Are in good physical health

7. Are proficient in speaking and reading English

8. Are willing to have all visits audio and video recorded

9. Are able to swallow pills

10. Agree to all study rules and commit to all medical and therapy visits

11. If in psychotherapy, are willing to allow the study therapists to communicate directly with your therapist

12. Are willing to stop taking psychiatric medications, herbal supplements, prescription and nonprescription medications during the study

13. Agree to stay overnight on two separate occasions after each full-day MDMA-Assisted Therapy Session, and not to drive for at least 24 hours after taking MDMA

14. Are not pregnant and will commit to not becoming pregnant during the study, if you are able to become pregnant

15. Have a supportive relative, spouse, close friend or other caregiver not participating in this study who can serve as your emergency contact

16. Agree to inform the researchers within 48 hours of any medical conditions and procedures

17. Agree to not participate in any other clinical trials during this study

• Close Significant Other

1. Have a close other person who meets criteria for PTSD and is able and willing to participate in this study

2. Are at least 18 years old

3. Are a resident of Ontario and live within the Greater Toronto Area (GTA)

4. Are in good physical health

5. Are proficient in speaking and reading English

6. Are willing to have all visits audio and video recorded

7. Are able to swallow pills

8. Agree to all study rules and commit to all medical and therapy visits

9. If in psychotherapy, are willing to allow the study therapists to communicate directly with your therapist

10. Are willing to stop taking psychiatric medications, herbal supplements, prescription and nonprescription medications during the study

11. Agree to stay overnight on two separate occasions after each full-day MDMA-Assisted Therapy Session, and not to drive for at least 24 hours after taking MDMA

12. Are not pregnant and will commit to not becoming pregnant during the study, if you are able to become pregnant

13. Have a supportive relative, spouse, close friend or other caregiver not participating in this study who can serve as your emergency contact

14. Agree to inform the researchers within 48 hours of any medical conditions and procedure

15. Agree to not participate in any other clinical trials during this study

Exclusion Criteria

• Participant with PTSD

1. Are pregnant or could become pregnant and not using birth control

2. Have a history of, or a current psychotic disorder or bipolar 1 disorder or dissociative identity disorder

3. Have a history of a medical condition that could make receiving MDMA unsafe (e.g. glaucoma, heart attack, stroke, aneurysm)

4. Have a history of Diabetes Mellitus (Type 2) that a doctor determines is not stable

5. Have hypothyroidism (low activity in the thyroid gland) and are not on thyroid replacement

6. Have high blood pressure, a history of heart disease, heart failure, irregular activity in the heart or require heart medication

7. Have liver disease with symptoms

8. Have history of hyponatremia (when you have decreased levels of sodium in the blood, which can cause confusion, seizures, fatigue and low levels of consciousness)

9. Have history of hyperthermia (when you have a dangerously overheated body, usually in response to hot, humid weather)

10. Weigh less than 48 kg

11. Have recently engaged in suicidal behaviour or had serious suicidal thoughts (this will be assessed by the study team)

12. Require ongoing therapy with a psychiatric medication

13. Have a current eating disorder with active purging

14. Have current major depressive disorder with psychotic features

15. Are a serious risk to others

16. Have recently received Electroconvulsive Therapy (ECT)

17. Have recently engaged in ketamine-assisted therapy or used ketamine

18. Have current substance use disorder with physiological dependence (not including caffeine or nicotine)

19. Have recently used "Ecstasy" (material represented as containing MDMA)

20. Are not able to give adequate informed consent

21. Are not able to adhere to the requirements for procedures, attendance and timing of visits, and observe limits regarding study staff time and support as indicated by a time-limited clinical trial

22. Are currently engaged in compensation litigation whereby financial gain would be achieved from prolonged symptoms of PTSD or any other psychiatric disorders

• Close Significant Other

1. Meet criteria for PTSD

2. Are pregnant or could become pregnant and not using birth control

3. Have a history of, or a current psychotic disorder or bipolar 1 disorder or dissociative identity disorder

4. Have a history of a medical condition that could make receiving MDMA unsafe (e.g. glaucoma, heart attack, stroke, aneurysm)

5. Have a history of Diabetes Mellitus (Type 2) that a doctor determines is not stable

6. Have hypothyroidism (low activity in the thyroid gland) and are not on thyroid replacement

7. Have high blood pressure, a history of heart disease, heart failure, irregular activity in the heart or require heart medication

8. Have liver disease with symptoms

9. Have history of hyponatremia (when you have decreased levels of sodium in the blood, which can cause confusion, seizures, fatigue and low levels of consciousness)

10. Have history of hyperthermia (when you have a dangerously overheated body, usually in response to hot, humid weather)

11. Weigh less than 48 kg

12. Have recently engaged in suicidal behaviour or had serious suicidal thoughts (this will be assessed by the study team)

13. Require ongoing therapy with a psychiatric medication

14. Have a current eating disorder with active purging

15. Have current major depressive disorder with psychotic features

16. Are a serious risk to others

17. Have recently received Electroconvulsive Therapy (ECT)

18. Have recently engaged in ketamine-assisted therapy or used ketamine

19. Have current substance use disorder with physiological dependence (not including caffeine or nicotine)

20. Have recently used "Ecstasy" (material represented as containing MDMA)

21. Are not able to give adequate informed consent

22. Are not able to adhere to the requirements for procedures, attendance and timing of visits, and observe limits regarding study staff time and support as indicated by a time-limited clinical trial

23. Are currently engaged in compensation litigation whereby financial gain would be achieved from prolonged symptoms of PTSD or any other psychiatric disorders

Related Conditions & MeSH terms

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

Intervention

Drug:
• MDMA assisted psychotherapy
This treatment combines MDMA with a well researched treatment for PTSD for dyads known as CBCT. Dyads will undergo a 7-week course of psychotherapy with two doses of MDMA will be used as an adjunct to psychotherapy.

Behavioral:
• Psychotherapy
A manualized treatment for PTSD for dyads wherein one person has symptoms of PTSD. This intervention is 7-week course of psychotherapy that is designed to simultaneously improve PTSD symptoms and relationship functioning through education and skill training.

Locations

Country	Name	City	State
Canada	Remedy Institute	Toronto	Ontario

Sponsors (2)

Lead Sponsor	Collaborator
Remedy	Remedy Institute

Country where clinical trial is conducted

Canada, 

Outcome

Type	Measure	Description	Time frame	Safety issue
Other	Posttraumatic Growth Inventory (PTGI)	The Posttraumatic Growth Inventory (PTGI) is a 21-item self-report measure of perceived growth or benefits occurring after a traumatic event. It contains five subscales: relationship to others, new possibilities, personal strength, spiritual change, and appreciation of life.	Baseline (enrolment) to Follow-up (3 month follow-up)
Other	Self-Compassion Scale-Short Form (SCS-SF)	The Self-Compassion Scale-Short Form (SCS-SF) is a 12-item self-report measures that assess self-compassion. This measure is comprised of the following subscales: self-kindness, self-judgement, common humanity, isolation, mindfulness, and over-identification. Respondents answer questions on a five-point Likert-type scale (1= almost never, 5= almost always).	Baseline (enrolment) to Follow-up (3-month follow-up)
Other	Brief Experiential Avoidance Questionnaire (BEAQ)	The Brief Experiential Avoidance Questionnaire (BEAQ) is a 15-item self-report measure that assesses experiential avoidance. Respondents rate the extent to which they agree with each item on a six-point Likert-type scale (1 = strongly disagree, 6= strongly agree).	Baseline (enrolment) to Follow-up (3-month follow-up)
Other	Alcohol Use Disorders Identification Test (AUDIT), Cannabis Use Disorders Identification Test-Revised (CUDIT-R), and Drug Use Disorders Identification Test (DUDIT)	The Alcohol Use Disorders Identification Test (AUDIT), Cannabis Use Disorders Identification Test-Revised (CUDIT-R), and Drug Use Disorders Identification Test (DUDIT) are self-report questionnaires that assess alcohol and substance use.	Baseline (enrolment) to Follow-up (3-month follow-up)
Other	Brief Posttraumatic Cognitions Inventory (PTCI-9)	The Brief Posttraumatic Cognitions Inventory (PTCI-9) is a nine-item self-report questionnaire that measures appraisals related to trauma. Respondents answer the questionnaire on a seven-point Likert-type scale (1= totally disagree, 7= totally agree).	Baseline (enrolment) to Follow-up (3-month follow-up)
Other	MOS Social Support Survey (MOS-SSS)	The MOS Social Support Survey (MOS-SSS) is a 20-item multidimensional self-report questionnaire that assess perceived availability of social support. Respondents answer questions on a seven-point Likert-type scale (1 = none of the time, 7= all of the time), where higher score indicate greater levels of available social support.	Baseline (enrolment) to Follow-up (3-month follow-up)
Other	Significant Others' Responses to Trauma Scale (SORTS)	The Significant Others' Responses to Trauma Scale (SORTS) is a 14-item self-report questionnaire that measures relationship problems and the psychological distress of partners of people with PTSD. Respondents answer questions on a five-point Likert scale (0-4).	Baseline (enrolment) to Follow-up (3-month follow-up)
Other	Modified Experiences in Close Relationships (ECR-M16)	The Modified Experiences in Close Relationships (ECR-M16) is a 16-item self-report questionnaire that assesses attachment style. Half of the items on the scale measure attachment anxiety and the other half measures attachment avoidance. Respondents answer questions on a seven-point Likert-type scale (1= disagree, 7=agree).	Baseline (enrolment) to Follow-up (3-month follow-up)
Other	Psychological Insights Questionnaire (PIQ)	The Psychological Insights Questionnaire (PIQ) is a a 23-item self-report measure that assesses acute experiences of insight (i.e., beliefs, memories, emotions, etc.). Respondents answer questions on a six-point Likert-type scale (0= no, not at all; 5= extremely).	Baseline (enrolment) to Follow-up (3-month follow-up)
Other	Mystical Experiences Questionnaire (MEQ30)	The Mystical Experiences Questionnaire (MEQ30) is a 30-item self-report questionnaire that assesses discrete mystical experiences. Respondents rate the extent to which the experience mystical feeling, positive mood, transcendence of space/time, and ineffability on a five-point Likert-type scale (0= no/not at all, 4= extreme).	Baseline (enrolment) to Follow-up (3-month follow-up)
Other	Columbia-Suicide Severity Rating Scale (C-SSRS)	The Columbia-Suicide Severity Rating Scale (C-SSRS) is a clinician-administered measure of suicidal behaviour devised to detect potential suicidal thoughts or behaviours. It is designed to assess suicidal ideation, ideation intensity, and behaviour.	Baseline (enrolment) to Follow-up (3-month follow-up)
Other	Credibility Expectancy Questionnaire (CEQ)	The Credibility Expectancy Questionnaire (CEQ) is a six-item self-report measure of beliefs about treatment credibility and expectancy of treatment outcomes. The some questions on the questionnaire are answered on a scale ranging from 1 (not at all) to 9 (very much) and that others are answered on a scale ranging from 0 (not at all) to 100% (very much).	Baseline (enrolment)
Other	Working Alliance Inventory-Observer Form (WAI-O)	The Working Alliance Inventory-Observer Form (WAI-O) is a 36-item observer-rated measure of the alliance between a therapist and client. Observers rate each item on a scale from 1 (Never applies to the dyad) to 7 (Always applies to the dyad).	First therapy session, Mid-point, and Follow-up (3-month follow-up)
Primary	Feasibility of Intervention Measure (FIM)	The Feasibility of Intervention Measure (FIM) is a self-report questionnaire in which respondents indicate the extent to which they believe that the treatment can be delivered in a given setting. Respondents indicate their responses on a five-point Likert-type (1=completely disagree, 5= completely agree).	3-Month Follow-up
Primary	Safety of Intervention	Safety will be assessed by examining the frequency and severity of adverse events (AEs), serious AEs (SAEs), treatment emergent AES (TEAEs), and AEs of special interest. Participants are asked to report any AEs, SAEs, TEAEs, and AEs of special interest as they happen and during any communication with the therapist or independent assessor.	Baseline (enrolment) to Follow-up (3-month follow-up)
Primary	Intervention Appropriateness Measures (IAM)	Intervention Appropriateness Measures (IAM) is a self-report measure of the perceived fit, relevance, or compatibility of an intervention. Respondents record their answers on a five-point Likert-type scale (1=completely disagree, 5= completely agree).	3-month follow-up
Primary	Long Term Follow-Up Questionnaire (LTFUQ)	The Long Term Follow-Up Questionnaire (LTFUQ) is a self-report measure that assesses the long-term benefits and harms of MDMA-assisted therapy.	3-Month Follow-up
Primary	Clinician Administered PTSD Scale (CAPS-5)	The Clinician-Administered PTSD Scale for DSM-5 (CAPS-5) is a clinician administered and scored assessment of PTSD symptoms via structured interview based upon PTSD diagnosis in DSM-5. It contains symptom subscales, a total severity score, and a diagnostic score. The total severity score is a sum of symptom frequency and intensity scores for the subscales B (re-experiencing), C (avoidance) and D (hypervigilance) and ranges from 0 to 136, with higher scores indicating greater severity of PTSD symptoms.	Baseline (enrolment) to Follow-up (3-month follow-up)
Secondary	Posttraumatic Stress Disorder Checklist for the DSM-5 (PCL-5)	PTSD Checklist for the DSM-5 (PCL-5) is a self-report questionnaire in which respondents indicate the presence and severity of PTSD symptoms, derived from the DSM-5 symptoms of PTSD. Participants indicate how much distress they have experienced due to symptoms on a five-point Likert-type scale (1 = not at all, 5 = extremely). The total PCL-5 score (a sum of all 20 items) provides an index of overall PTSD symptom severity with higher scores indicating higher severity.	Baseline (enrolment) to Follow-up (3-month follow-up)
Secondary	Quality of Relationships Inventory (QRI)	The Quality of Relationships Inventory (QRI) is a self-report questionnaire that uses the role of situational, intrapersonal, and interpersonal in social support processes to assess supportive and conflictual aspects of close non-intimate relationships.	Baseline (enrolment) to Follow-up (3-month follow-up)
Secondary	Couple Satisfaction Index (CSI)	The Couple Satisfaction Index (CSI) is a self-report questionnaire that measures intimate relationship functioning. Respondents answer most of the questions on a six-point Likert-type scale (0= never, 5= all the time) and one question on a seven-point Likert-type scale ( 0= extremely unhappy, 6= perfect).	Baseline (enrolment) to Follow-up (3-month follow-up)
Secondary	Patient Health Questionnaire-9 (PHQ-9)	The Patient Health Questionnaire-9 (PHQ-9) is used to assess depressive symptom severity. The PHQ-9 includes items which correspond with the diagnostic criteria for DSM-IV major depressive disorder. Scores can indicate either no depression, minimal, mild, moderate, moderately severe, or severe depression. Higher scores indicate higher severity in depressive symptoms.	Baseline (enrolment) to Follow-up (3-month follow-up)