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This study aims to investigate the effects of MDMA on prefrontal and amygdala activation, and to explore the relationship between these MDMA-induced neural changes and the acute behavioral effects of the drug in patients with PTSD.
The investigators intend to utilize state-of-the-art validated Human Connectome Project (HCP) style approaches to determine the effects of MDMA on prefrontal and amygdala activation, and to explore the relationship between these MDMA-induced neural changes and the acute behavioral effects of the drug in patients with PTSD. In addition, the investigators will collect preliminary data on the MDMA effects on large-scale intrinsic functional connectivity using novel graph-based network analyses.
Specifically, the investigators will measure medial prefrontal cortex (mPFC) and amygdala activation in response to negative stimuli in patients with PTSD. The investigators hypothesize that MDMA will increase mPFC, but decrease amygdala, activation in response to negative stimuli.
The investigators will also explore the relationship between the MDMA-induced mPFC and amygdala activation, and performance on Ekman's Emotional Facial Expression task. This task is modulated by the mPFC and amygdala and as well as trauma severity in participants with PTSD. And finally, to explore the effects of MDMA on resting-state functional connectivity (rs-fcMRI) the investigators will use Coupled Intrinsic Connectivity Distribution (Coupled-ICD); an innovative, graph-based, fully data-driven approach that is particularly sensitive to paired rs-fcMRI data (e.g. pre/post-treatment).
Adult participants with PTSD will be recruited for a double-blind, placebo-controlled, within-subjects, crossover-dose neuroimaging study in which they will initially receive either a single dose of MDMA 1.5mg/kg or a placebo (niacin 250mg), with a crossover dose to follow. Doses will be separated by 2 weeks.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| MDMA | Experimental | MDMA (1.5mg/kg) |
|
| Niacin | Placebo Comparator | Niacin (250mg) |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| MDMA | Drug | A single dose of 1.5mg/kg will be administered once orally. |
|
| Measure | Description | Time Frame |
|---|---|---|
| Changes in activation of mPFC, amygdala, and nucleus accumbens upon presentation of emotional faces. | This will be assessed using mixed effects regression models, with group, time, and group X time effects modeled to examine the effect of MDMA on region of interests (ROI) activation. We will also assess the functional connectivity of between these ROIs. | Initial Drug Dose, 2 weeks post drug dose (second drug dose). |
| Measure | Description | Time Frame |
|---|---|---|
| Changes in PTSD symptoms, which will be measured by The Clinician-Administered PTSD Scale 5 (CAPS-5). | Assesses PTSD symptoms. It is a structured interview that consists of 30 items. Items are rated using a 0 to 4 severity scale. In addition to assessing the 20 DSM-5 PTSD symptoms, questions target the onset and duration of symptoms, subjective distress, impact of symptoms on social and occupational functioning, improvement in symptoms since a previous CAPS administration, overall response validity, overall PTSD severity, and specifications for the dissociative subtype (depersonalization and derealization. Higher scores indicate more severe PTSD symptoms. |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Affiliation | Role |
|---|---|---|
| Benjamin Kelmendi, MD | Yale University | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Enact Research Collaborative | New Haven | Connecticut | 06510 | United States |
| PubMed Identifier | Type | Citation | Retractions |
|---|---|---|---|
| 26164548 | Background | Haagen JF, Smid GE, Knipscheer JW, Kleber RJ. The efficacy of recommended treatments for veterans with PTSD: A metaregression analysis. Clin Psychol Rev. 2015 Aug;40:184-94. doi: 10.1016/j.cpr.2015.06.008. Epub 2015 Jun 27. | |
| 7492257 | Background | Kessler RC, Sonnega A, Bromet E, Hughes M, Nelson CB. Posttraumatic stress disorder in the National Comorbidity Survey. Arch Gen Psychiatry. 1995 Dec;52(12):1048-60. doi: 10.1001/archpsyc.1995.03950240066012. |
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| ID | Term |
|---|---|
| D013313 | Stress Disorders, Post-Traumatic |
| ID | Term |
|---|---|
| D040921 | Stress Disorders, Traumatic |
| D000068099 | Trauma and Stressor Related Disorders |
| D001523 | Mental Disorders |
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| ID | Term |
|---|---|
| D018817 | N-Methyl-3,4-methylenedioxyamphetamine |
| D009525 | Niacin |
| ID | Term |
|---|---|
| D000662 | Amphetamines |
| D010627 | Phenethylamines |
| D005021 | Ethylamines |
| D000588 | Amines |
| D009930 |
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This study will be a double-blind, placebo-controlled, within-subjects, crossover-dose neuroimaging study in which participants will initially receive either a single dose of MDMA 1.5mg/kg or a placebo (niacin 250mg), with a crossover dose to follow. Doses will be separated by 2 weeks.
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| Niacin | Drug | A single dose of 250mg will be administered once orally. |
|
|
| Baseline, Initial Drug Dose and Second Drug Dose, 24 hours and 1 week after initial and second drug dose. |
| Changes in depression symptoms, which will be measured by The Beck Depression Inventory II (BDI-II). | Assesses depression symptoms. Consists of 21 items and uses a 0 to 3 severity scale. Total scores range from 0 to 63, with higher scores indicating more severe depression. | Baseline, Initial Drug Does and Second Drug Dose, 24 hours after initial and second drug dose, 3 and 5 days after initial and second drug dose (by phone), 1 week after initial and second drug dose, 15, 17, 19, and 21 days after second drug dose (phone). |
| Changes in sleep patterns, which will be measured by The Pittsburgh Sleep Quality Index (PSQI). | Assesses the quality and patterns of sleep in adults. It differentiates "poor" from "good" sleep quality by measuring seven areas (components): subjective sleep quality, sleep latency, sleep duration, habitual sleep efficiency, sleep disturbances, use of sleeping medications, and daytime dysfunction over the last month. Items are rated using a 0 to 3 scale. The component scores are summed to produce a global score (range 0 to 21). Higher scores indicate worse sleep quality. | Baseline, 24 hours after first and second drug dose, 1 week after initial and second drug dose. |
| Changes in PTSD symptoms, which will be measured by The Posttraumatic Stress Disorder Checklist for the DSM-5 (PCL-5). | Assesses PTSD symptoms. It is a 20-item self-report measure that assesses the 20 DSM-5 symptoms of PTSD. Items are rated using a 0 to 4 scale. Total scores range from 0 to 80, with higher scores indicating more severe PTSD symptoms. | Baseline, 24 hours after initial and second drug dose, 3 and 5 days after initial and second drug dose (phone), 1 week after initial and second drug dose, 15, 17, 19, and 21 days after second drug dose (phone). |
| Changes in personality traits, which will be measured by The NEO Personality Inventory - Revised (NEO PI-R). | Assesses changes in personality traits. It is a personality inventory that examines a person's Big Five personality traits. It consist of 240 items that assess 30 specific traits, which in turn define the five factors: Neuroticism (N), Extraversion (E), Openness to Experience (O), Agreeableness (A), and Conscientiousness (C). Items are rated on a five-point Likert scale, from strongly disagree to strongly agree. | Baseline, 1 week after initial and second drug dose. |
| Changes in mental states, which will be measured The 5-Dimensional Altered States of Consciousness Scale (5D-ASC). | Assesses different mental states induced by the interventions. Consists of 94 items which are rated by placing marks on a horizontal visual analogue scale (100 millimeters in length). The scale ranges from no, not more than usual (on the left) to yes, very much more than usual (on the right). The items are scored by measuring the millimeters from the low end of the scale to the participant's mark (from 0 to 100). | Initial and second drug dose. |
| Changes in growth following a traumatic event, which will be measured by The Post traumatic Growth Inventory (PTGI). | Assesses positive outcomes reported by persons who have experienced traumatic events. It is a 21-item scale that includes factors of New Possibilities, Relating to Others, Personal Strength, Spiritual Change, and Appreciation of Life. Participants are asked to rate the degree to which this change occurred in their life as a result of the crisis/disaster. Each item is rated from 0 (I did not experience this change as a result of my crisis) to 5 (I experienced this change to a very great degree as a result of my crisis). Total score is calculated by summing all items. Individual factors are scored by adding responses to items on each factor. Higher scores indicate greater growth. | Baseline, 24 hours after initial and second drug dose, 1 week after initial and second drug dose. |
| Changes in well-being, which will be measured by The Well-Being Inventory (WBI). | Assesses well-being across life domains and such as work, finances, health, and social relationships. Participants are first asked questions about their level of functioning in each domain. Items are rated from 1 (never) to 5 (most or all of the time). Then they are asked questions about their satisfaction in each domain. Items are rated from 1 (very dissatisfied) to 5 (very satisfied). Higher total scores indicate greater well-being. | Baseline, 1 week after initial and second drug dose. |
| Changes in psychological inflexibility/experiential avoidance, which will be measured by The Acceptance and Action Questionnaire II (AAQ-II). | Assesses psychological inflexibility/experiential avoidance. Participants are asked to rate how true each statement is for them. Items are rated from 1 (never true) to 7 (always true). Higher scores equal greater levels of psychological inflexibility. | Baseline, 1 Week after initial and second drug dose. |
| Changes in emotional regulation, which will be measured by The Emotion Regulation Questionnaire (ERQ). | Assesses emotional regulation. A 10-item scale designed to measure respondents' tendency to regulate their emotions in two ways: (1) Cognitive Reappraisal and (2) Expressive Suppression. Participants answer each item on a 7-point Likert scale ranging from 1 (strongly disagree) to 7 (strongly agree). The higher the scores the greater the use of the emotion regulation strategy. | Baseline, 1 week after initial and second drug dose. |
| Changes in cognitive and emotional empathy, which will be measured by the Multifaceted Empathy Test (MET). | Measures cognitive and emotional empathy simultaneously and independently using a series of photorealistic stimuli computer based tasks. | Baseline, Initial and Second Drug Dose, 24 hours after initial and second drug dose, 1 week after initial and second drug dose. |
| Changes in the quality of specific relationships in terms of supportive and conflictual dynamics will be assessed with the Quality of Relationships Inventory (QRI) | The 25 question task assesses the contemporary quality of specific relationships (between the patient and a specific individual, such as a family member) at a particular point in time in terms of conflict, support, and depth. It uses a Likert-type 4 point scale going from "1" indicating the item does not apply at all, while "4" indicates the item applies quite a lot. | Baseline, Initial and Second Drug Dose, 1 week after initial and second drug dose. |
| Cognitive schemas about oneself and others, will be assessed by the Trauma and Attachment Beliefs Scale (TABS) | The 84 item self-report scale, which measures responses on a 1-6 scale (1 = "Disagree Strongly, 6 = Agree Strongly) the degree to which respondents believe the statements correspond with their own beliefs. The measures of these beliefs relate to self-safety, other-safety, self-trust, other-trust, self-esteem, other-esteem, self-intimacy, other-intimacy, self-control, and other control. | Baseline |
| Brain injury will be assessed for with the CogState Neuropsychological Test | Brain injuries associated with traumatic events, such as concussions, will be screened for in the CogState Neuropsychological Test, a standard computerized test used to assess neuropsychological deficits associated with brain injury. | Baseline, 1 week after initial and second drug dose. |
| Moral injury, or the sense of distress due to contradiction of deeply-held beliefs due to a traumatic event, will be measured by the Moral Injury Events Scale (MIES) | This 9 item self-report scale measures the moral injury, or distress due to the contradiction to a deeply-held belief about the world that often accompanies a traumatic incident. The injury is assessed in terms of "perceived transgression" and "perceived betrayal." Items are assessed with a Likert-type Scale (1 to 6, 1 = "strongly disagree," 6 = "strongly agree," with no neutral option). Higher scores indicate greater severity of associated event. | Baseline, Initial and Second Drug Dose, 24 hours after initial and second drug dose, 1 week after initial and second drug dose. |
| Changes in concept and sense of existential meaning will be measured with the Purpose and Meaning scale (PIL) | Measures evaluation of the sense of existential purpose and enthusiasm for life in a three part self-report survey. Part A is a 20 point scale test which uses a 1-7 scale in which low number answers correspond attitudes such as boredom and directionless-ness. Parts B and C are not empirically useful, but ask for participants to completes sentences and compose a paragraph respectively. Higher scores indicate a greater existential sense of purpose, with scores above 113 indicate a high degree of purpose, scores below 92 suggesting a lack of purpose, and scores between 92 and 112 indicate moderate levels of purpose. | Baseline, 1 week after second drug dose. |
| Changes in depression symptoms, which will be measured Montgomery-Asberg Depression Rating Scale (MADRS). | Assesses depression symptoms. Consists of 10 items and uses a 0 to 6 severity scale. Total scores range from 0 to 60, with higher scores indicating more severe depression. | Baseline, Initial and Second Drug Dose, 24 hours after initial and second drug dose, 1 week after initial and second administration. |
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| Organic Chemicals |
| D009539 | Nicotinic Acids |
| D000147 | Acids, Heterocyclic |
| D006571 | Heterocyclic Compounds |
| D011725 | Pyridines |
| D006573 | Heterocyclic Compounds, 1-Ring |