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MDMA-Assisted Psychotherapy for Anxiety Associated With a Life-Threatening Illness

A Randomized, Double-Blind, Placebo-Controlled Phase 2 Pilot Study of MDMA-Assisted Psychotherapy for Anxiety Associated With a Life-Threatening Illness

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02427568
Enrollment
18
Registered
2015-04-28
Start date
2015-05-14
Completion date
2018-05-17
Last updated
2025-06-05

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

Conditions

Anxiety

Keywords

Anxiety, MDMA, Life-threatening illness, Therapy, midomafetamine

Brief summary

The goal of this clinical trial is to learn if MDMA-assisted therapy is safe and effective in people with anxiety associated with a life-threatening illness. The main question it aims to answer is: Does anxiety decrease in people receiving two sessions of MDMA-assisted therapy? Researchers will compare people receiving placebo with therapy to people receiving MDMA-assisted therapy. * Participants will undergo three non-drug preparatory therapy sessions before their first blinded session of MDMA or placebo with therapy. * Each medication session will be followed by three non-drug integrative therapy sessions. * After the second blinded medication session, participants receiving MDMA will complete a third open-label medication session. * Participants who received placebo will be given the option to crossover and receive three sessions of assisted therapy.

Detailed description

This Phase 2 pilot study is a randomized, double-blind, placebo-controlled study in 18 participants comparing the effects of MDMA-assisted therapy vs. placebo with therapy. Thirteen participants were randomized to the active dose condition of 125 mg of MDMA HCl (plus an optional supplemental dose of 62.5 mg MDMA HCl) with therapy and five participants were randomized to the placebo with therapy condition. The study consisted of two blinded experimental sessions of MDMA-assisted therapy or placebo with therapy, each session lasting six to eight hours and scheduled two to four weeks apart. Each participant was unblinded one month after their second experimental session in Stage 1. After unblinding, participants receiving MDMA were to complete a third open-label experimental session of MDMA-assisted therapy and participants who originally received placebo had the opportunity to cross over to open-label Stage 2 and receive active MDMA-assisted therapy in 3 sessions. The primary objective of the study is to assess changes in trait anxiety in subjects receiving active dose MDMA compared to those receiving placebo as measured by State-Trait Anxiety Index (STAI) Trait scores from Baseline to the Primary Endpoint (one month after the second experimental session).

Interventions

Two sessions of MDMA-assisted therapy lasting six to eight hours, scheduled two to four weeks apart.

DRUGPlacebo

Two sessions of placebo with therapy lasting six to eight hours, scheduled two to four weeks apart.

BEHAVIORALTherapy

Manualized therapy

Sponsors

Lykos Therapeutics
Lead SponsorINDUSTRY

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 No maximum
Healthy volunteers
No

Inclusion criteria

* Diagnosed with life-threatening cancer or non-dementing neurological illness, which can be ongoing or in remission, but with a possibility of recurrence * Prognosis of at least nine months life expectancy from the time of screening * Have anxiety as a result of facing their illness * Are at least 18 years old * Are willing to refrain from taking any psychiatric medications during the study period; * Are willing to commit to medication dosing, experimental sessions, follow-up sessions, and to complete evaluation instruments * Are willing to remain overnight at the study site after each experimental session until after the integrative session occurring the next morning * Must sign a medical release for the investigators to communicate directly with their therapist and doctors; * Are willing to select up to three observers who will complete observer measures of subject attitudes and behavior * Negative pregnancy test if able to bear children and agree to use effective birth control * Are proficient in speaking and reading English * Agree to have all psychotherapy sessions recorded to audio/video.

Exclusion criteria

* Are pregnant or nursing, or if a woman who can have children, those who are not practicing an effective means of birth control; * Weigh less than 48 kg * Are abusing illegal drugs * Are unable to give adequate informed consent * Upon review of past, current drugs/medication must not be on or have taken a medication that is exclusionary * Upon review of medical or psychiatric history must not have any current or past diagnosis that would be considered a risk to participation in the study * Have used Ecstasy (material represented as containing MDMA) at least once within twelve months of enrollment.

Design outcomes

Primary

MeasureTime frameDescription
Change in State Trait Anxiety Inventory (STAI) Trait Score From Baseline to Primary EndpointBaseline (3 months from enrollment) to Primary Endpoint (one month post-2nd experimental session)The State-Trait Anxiety Inventory (STAI) is a 20-item self-report measure of intensity of anxiety. Each item consists of a 4-point Likert rating scale ranging from 1 ('Not at all') to 4 ('Very Much So'), with higher scores indicating greater anxiety. Items were summed for a total score that ranged from 20 to 80. The STAI differentiates between State Anxiety, defined as anxiety experienced in reaction to a specific environmental circumstance, and Trait Anxiety, defined as long-standing nervous affect or anxiety disorder. The use of the trait subscale as the primary outcome measure was intended to target those anxiety symptoms that are chronic and pervasive.
Primary Endpoint STAI Trait ScoreOne month post-2nd experimental sessionThe State-Trait Anxiety Inventory (STAI) is a 20-item self-report measure of intensity of anxiety. Each item consists of a 4-point Likert rating scale ranging from 1 ('Not at all') to 4 ('Very Much So'), with higher scores indicating greater anxiety. Items were summed for a total score that ranged from 20 to 80. The STAI differentiates between State Anxiety, defined as anxiety experienced in reaction to a specific environmental circumstance, and Trait Anxiety, defined as long-standing nervous affect or anxiety disorder. The use of the trait subscale as the primary outcome measure is intended to target those anxiety symptoms that are chronic and pervasive.

Secondary

MeasureTime frameDescription
Change in Global Assessment of Functioning (GAF) Score From Baseline to Primary EndpointBaseline (3 months from enrollment) to Primary Endpoint (one month post 2nd experimental session)The Global Assessment of Function (GAF) is a measure of a person's global social functioning made through clinical observation. The GAF consists of a single score, with scores ranging from 0 to 100, with 100 reflecting superior function and zero reflecting serious risk of causing harm to the self or others.
Change in MADRS Score From Baseline to Primary EndpointBaseline (3 months from enrollment) to Primary Endpoint (one month post-2nd experimental session)The Montgomery-Asberg Depression Rating Scale (MADRS) is a 10-item, clinician administered questionnaire used to diagnose the severity of depressive episodes. Each item has a score of 0 to 6. Overall scores are summed and range from 0 to 60. Score cutoffs indicate: 0-6 normal/symptom absent, 7-19 mild depression, 20-34 moderate depression, \> 34 severe depression. Higher scores indicate greater severe depression.
Change in Pittsburgh Sleep Quality Inventory (PSQI) From Baseline to Primary EndpointBaseline (3 months from enrollment) to Primary Endpoint (one month post-2nd experimental session)The Pittsburgh Sleep Quality Index (PSQI) is a measure of self-reported sleep quality over a one month period. It consists of 19 items with possible responses ranging from zero to four on a five-point scale. The PSQI consists of seven sub-scales: sleep quality, sleep latency, sleep duration, habitual sleep efficiency, sleep disturbance, use of sleeping medications, and daytime dysfunction. These are all summed to produce a single global scale. Global scores can range from 0 to 21, with higher scores reflecting poorer sleep quality, and a score below 5 indicating good sleep quality.
Change in STAI State Score From Baseline to Primary EndpointBaseline (3 months from enrollment) to Primary Endpoint (one month post-2nd experimental session)The state subscale of the STAI (STAI-S) is a 20-item self-reported scale which assesses subjects' levels of transient, situationally oriented, anxiety. Like the trait subscale, participants respond to each item on the state subscale by selecting a response from a 4-point Likert scale ranging from 4 (Not at all) to 1 (Very much so), with higher scores indicating greater anxiety. Items were summed for a total score that ranged from 20 to 80. The STAI differentiates between State Anxiety, defined as anxiety experienced in reaction to a specific environmental circumstance, and Trait Anxiety, defined as long-standing nervous affect or anxiety disorder. The use of the trait subscale as the primary outcome measure is intended to target those anxiety symptoms that are chronic and pervasive.
Change in Functional Assessment of Chronic Illness Therapy Scale (FACIT) From Baseline to Primary EndpointBaseline (3 months from enrollment) to Primary Endpoint (one month post-2nd experimental session)The Functional Assessment of Chronic Illness Therapy Scale (FACIT-Sp) is a 27-item self-report measure of quality of life issues specifically relevant to individuals with a chronic or life-threatening illness or condition. The core questionnaire consists of four subscales: Physical Well-being, Social/Family Well-being, Emotional Well-being, and Functional Well-being. Responses range from 0 (not at all) to 4 (very much), with higher scores indicating greater well-being. For each subscale, total scores were summed and range from 0 to 16.
Change in Death Attitudes Profile (DAP) From Baseline to Primary EndpointBaseline (3 months from enrollment) to Primary Endpoint (one month post-2nd experimental session)The Death Attitudes Profile (DAP) is a 32-item self-reported questionnaire that assesses individual attitudes and beliefs about death and dying. Each item on the scale is rated along a 7-point Likert scale ranging from strongly disagree (score of 1) to strongly agree (score of 7), with higher scores indicating more positive attitudes toward death. The DAP consists of 5 dimensions: fear of death (7 items summed with total scores ranging from 7 to 49), death avoidance (5 items summed with total scores ranging from 5 to 35), neutral acceptance (5 items summed with total scores ranging from 5 to 35), approach acceptance (10 items summed with total scores ranging from 10 to 70), and escape acceptance (5 items summed with total scores ranging from 5 to 35). For each dimension, a mean scale score can be computed by dividing the total scale score by the number of items forming each scale.
Change in Self-Compassion Scale (SCS) From Baseline to Primary EndpointBaseline (3 months from enrollment) to Primary Endpoint (one month post-2nd experimental session)The Self-Compassion Scale (SCS) is a 26-item self-reported questionnaire that assesses how respondents relate to themselves and treat themselves during difficult or painful experiences. Items are scored along a 5-point Likert-type scale ranging from 1 almost never to 5 almost always. The SCS has six component (subscale) scores: self-kindness, self-judgment, common humanity, isolation, mindfulness, and over-identification. Subscale scores are calculated by computing the mean of subscale item responses. A total self-compassion score is calculated by the sum of the subscale scores and range from 24 to 120 with higher scores indicating greater self compassion. Higher scores have been found to correlate with positive mental health outcomes, as well as decreased depression and anxiety.
Change in Posttraumatic Growth Inventory (PTGI) From Baseline to Primary EndpointBaseline (3 months from enrollment) to Primary Endpoint (one month post-2nd experimental session)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. Questions are answered on a scale from 0 (I did not experience this change) to 5 (I experienced this change to a great degree). Items are added to calculate the total PTGI score which ranges from 0 to 105, with higher scores indicative of greater growth.
Change in Beck Depression Inventory-II (BDI-II) Score From Baseline to Primary EndpointBaseline (3 months from enrollment) to Primary Endpoint (one month post-2nd experimental session)The Beck Depression Inventory-II (BDI-II) is a a 21-item self-reported measure of depression according to Diagnostic and Statistical Manual IV (DSM-IV) criteria. Each item is rated on a 4-point Likert scale ranging from 0 to 3. The total score is the sum of 21 items and range from 0 to 63. Score cutoffs indicate: 0-13 minimal depression, 14-19 mild depression, 20-28 moderate depression, and 29-63 severe depression. Higher scores indicate more severe depressive symptoms.

Countries

United States

Participant flow

Recruitment details

Participants were recruited through printed ads, internet ads, referrals from other psychiatrists, psychotherapists or physicians, and through word of mouth.

Participants by arm

ArmCount
Placebo With Therapy
Inactive placebo administered on 2 blinded experimental sessions scheduled 2 to 4 weeks apart. Initial dose possibly followed 1.5 to 2.5 hours later by inactive placebo supplemental dose. Placebo with therapy: Two sessions of placebo with therapy lasting six to eight hours, scheduled two to four weeks apart.
5
MDMA-assisted Therapy (125 mg)
125 mg 3,4-methylenedioxymethamphetamine (MDMA) administered on 2 blinded experimental sessions scheduled 2 to 4 weeks apart. Initial dose possibly followed 1.5 to 2.5 hours later by a supplemental dose of 62.5 mg MDMA. MDMA-assisted therapy: Two sessions of MDMA-assisted therapy lasting six to eight hours, scheduled two to four weeks apart.
13
Total18

Baseline characteristics

CharacteristicTotalMDMA-assisted Therapy (125 mg)Placebo With Therapy
Age, Continuous54.9 years
STANDARD_DEVIATION 7.9
55.5 years
STANDARD_DEVIATION 7
53.2 years
STANDARD_DEVIATION 10.5
Baseline State-Trait Anxiety Inventory Trait (STAI-T)61.1 units on a scale
STANDARD_DEVIATION 7.03
57.4 units on a scale
STANDARD_DEVIATION 5.18
62.5 units on a scale
STANDARD_DEVIATION 7.31
Race/Ethnicity, Customized
Race
Black/African American
1 Participants0 Participants1 Participants
Race/Ethnicity, Customized
Race
Other
2 Participants1 Participants1 Participants
Race/Ethnicity, Customized
Race
White/Caucasian
15 Participants12 Participants3 Participants
Sex: Female, Male
Female
14 Participants10 Participants4 Participants
Sex: Female, Male
Male
4 Participants3 Participants1 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
EG003
affected / at risk
EG004
affected / at risk
EG005
affected / at risk
deaths
Total, all-cause mortality
0 / 50 / 130 / 50 / 130 / 51 / 13
other
Total, other adverse events
2 / 511 / 134 / 53 / 132 / 53 / 13
serious
Total, serious adverse events
0 / 50 / 130 / 50 / 130 / 53 / 13

Outcome results

Primary

Change in State Trait Anxiety Inventory (STAI) Trait Score From Baseline to Primary Endpoint

The State-Trait Anxiety Inventory (STAI) is a 20-item self-report measure of intensity of anxiety. Each item consists of a 4-point Likert rating scale ranging from 1 ('Not at all') to 4 ('Very Much So'), with higher scores indicating greater anxiety. Items were summed for a total score that ranged from 20 to 80. The STAI differentiates between State Anxiety, defined as anxiety experienced in reaction to a specific environmental circumstance, and Trait Anxiety, defined as long-standing nervous affect or anxiety disorder. The use of the trait subscale as the primary outcome measure was intended to target those anxiety symptoms that are chronic and pervasive.

Time frame: Baseline (3 months from enrollment) to Primary Endpoint (one month post-2nd experimental session)

Population: Intent-to-treat (ITT) set

ArmMeasureValue (MEAN)Dispersion
Placebo With TherapyChange in State Trait Anxiety Inventory (STAI) Trait Score From Baseline to Primary Endpoint-8.8 score on a scaleStandard Deviation 14.7
MDMA-assisted Therapy (125 mg)Change in State Trait Anxiety Inventory (STAI) Trait Score From Baseline to Primary Endpoint-23.5 score on a scaleStandard Deviation 13.2
Primary

Primary Endpoint STAI Trait Score

The State-Trait Anxiety Inventory (STAI) is a 20-item self-report measure of intensity of anxiety. Each item consists of a 4-point Likert rating scale ranging from 1 ('Not at all') to 4 ('Very Much So'), with higher scores indicating greater anxiety. Items were summed for a total score that ranged from 20 to 80. The STAI differentiates between State Anxiety, defined as anxiety experienced in reaction to a specific environmental circumstance, and Trait Anxiety, defined as long-standing nervous affect or anxiety disorder. The use of the trait subscale as the primary outcome measure is intended to target those anxiety symptoms that are chronic and pervasive.

Time frame: One month post-2nd experimental session

Population: Intent-to-treat (ITT) set

ArmMeasureValue (MEAN)Dispersion
Placebo With TherapyPrimary Endpoint STAI Trait Score48.6 score on a scaleStandard Deviation 12.6
MDMA-assisted Therapy (125 mg)Primary Endpoint STAI Trait Score38.9 score on a scaleStandard Deviation 10.6
Secondary

Change in Beck Depression Inventory-II (BDI-II) Score From Baseline to Primary Endpoint

The Beck Depression Inventory-II (BDI-II) is a a 21-item self-reported measure of depression according to Diagnostic and Statistical Manual IV (DSM-IV) criteria. Each item is rated on a 4-point Likert scale ranging from 0 to 3. The total score is the sum of 21 items and range from 0 to 63. Score cutoffs indicate: 0-13 minimal depression, 14-19 mild depression, 20-28 moderate depression, and 29-63 severe depression. Higher scores indicate more severe depressive symptoms.

Time frame: Baseline (3 months from enrollment) to Primary Endpoint (one month post-2nd experimental session)

Population: Intent-to-treat (ITT) set

ArmMeasureValue (MEAN)Dispersion
Placebo With TherapyChange in Beck Depression Inventory-II (BDI-II) Score From Baseline to Primary Endpoint-14.6 score on a scaleStandard Deviation 8.6
MDMA-assisted Therapy (125 mg)Change in Beck Depression Inventory-II (BDI-II) Score From Baseline to Primary Endpoint-20.9 score on a scaleStandard Deviation 13.8
Secondary

Change in Death Attitudes Profile (DAP) From Baseline to Primary Endpoint

The Death Attitudes Profile (DAP) is a 32-item self-reported questionnaire that assesses individual attitudes and beliefs about death and dying. Each item on the scale is rated along a 7-point Likert scale ranging from strongly disagree (score of 1) to strongly agree (score of 7), with higher scores indicating more positive attitudes toward death. The DAP consists of 5 dimensions: fear of death (7 items summed with total scores ranging from 7 to 49), death avoidance (5 items summed with total scores ranging from 5 to 35), neutral acceptance (5 items summed with total scores ranging from 5 to 35), approach acceptance (10 items summed with total scores ranging from 10 to 70), and escape acceptance (5 items summed with total scores ranging from 5 to 35). For each dimension, a mean scale score can be computed by dividing the total scale score by the number of items forming each scale.

Time frame: Baseline (3 months from enrollment) to Primary Endpoint (one month post-2nd experimental session)

Population: Intent-to-treat (ITT) set

ArmMeasureGroupValue (MEAN)Dispersion
Placebo With TherapyChange in Death Attitudes Profile (DAP) From Baseline to Primary EndpointDeath avoidance-1.1 score on a scaleStandard Deviation 1.8
Placebo With TherapyChange in Death Attitudes Profile (DAP) From Baseline to Primary EndpointApproach acceptance-0.1 score on a scaleStandard Deviation 1.1
Placebo With TherapyChange in Death Attitudes Profile (DAP) From Baseline to Primary EndpointNeutral acceptance0.2 score on a scaleStandard Deviation 0.6
Placebo With TherapyChange in Death Attitudes Profile (DAP) From Baseline to Primary EndpointEscape acceptance0 score on a scaleStandard Deviation 0.9
Placebo With TherapyChange in Death Attitudes Profile (DAP) From Baseline to Primary EndpointFear of death-0.6 score on a scaleStandard Deviation 1
MDMA-assisted Therapy (125 mg)Change in Death Attitudes Profile (DAP) From Baseline to Primary EndpointEscape acceptance0.4 score on a scaleStandard Deviation 1
MDMA-assisted Therapy (125 mg)Change in Death Attitudes Profile (DAP) From Baseline to Primary EndpointFear of death-0.1 score on a scaleStandard Deviation 0.6
MDMA-assisted Therapy (125 mg)Change in Death Attitudes Profile (DAP) From Baseline to Primary EndpointDeath avoidance0 score on a scaleStandard Deviation 0.8
MDMA-assisted Therapy (125 mg)Change in Death Attitudes Profile (DAP) From Baseline to Primary EndpointNeutral acceptance0.1 score on a scaleStandard Deviation 0.6
MDMA-assisted Therapy (125 mg)Change in Death Attitudes Profile (DAP) From Baseline to Primary EndpointApproach acceptance0.3 score on a scaleStandard Deviation 0.7
Secondary

Change in Functional Assessment of Chronic Illness Therapy Scale (FACIT) From Baseline to Primary Endpoint

The Functional Assessment of Chronic Illness Therapy Scale (FACIT-Sp) is a 27-item self-report measure of quality of life issues specifically relevant to individuals with a chronic or life-threatening illness or condition. The core questionnaire consists of four subscales: Physical Well-being, Social/Family Well-being, Emotional Well-being, and Functional Well-being. Responses range from 0 (not at all) to 4 (very much), with higher scores indicating greater well-being. For each subscale, total scores were summed and range from 0 to 16.

Time frame: Baseline (3 months from enrollment) to Primary Endpoint (one month post-2nd experimental session)

Population: Intent-to-treat (ITT) set

ArmMeasureGroupValue (MEAN)Dispersion
Placebo With TherapyChange in Functional Assessment of Chronic Illness Therapy Scale (FACIT) From Baseline to Primary EndpointSocial/ family well-being-2.0 score on a scaleStandard Deviation 2.9
Placebo With TherapyChange in Functional Assessment of Chronic Illness Therapy Scale (FACIT) From Baseline to Primary EndpointFunctional well-being1.0 score on a scaleStandard Deviation 1.6
Placebo With TherapyChange in Functional Assessment of Chronic Illness Therapy Scale (FACIT) From Baseline to Primary EndpointEmotional well-being1.0 score on a scaleStandard Deviation 2.2
Placebo With TherapyChange in Functional Assessment of Chronic Illness Therapy Scale (FACIT) From Baseline to Primary EndpointAdditional concerns-0.3 score on a scaleStandard Deviation 5
Placebo With TherapyChange in Functional Assessment of Chronic Illness Therapy Scale (FACIT) From Baseline to Primary EndpointPhysical well-being2.8 score on a scaleStandard Deviation 5
MDMA-assisted Therapy (125 mg)Change in Functional Assessment of Chronic Illness Therapy Scale (FACIT) From Baseline to Primary EndpointAdditional concerns4.5 score on a scaleStandard Deviation 11.9
MDMA-assisted Therapy (125 mg)Change in Functional Assessment of Chronic Illness Therapy Scale (FACIT) From Baseline to Primary EndpointPhysical well-being1.4 score on a scaleStandard Deviation 4.4
MDMA-assisted Therapy (125 mg)Change in Functional Assessment of Chronic Illness Therapy Scale (FACIT) From Baseline to Primary EndpointSocial/ family well-being0.8 score on a scaleStandard Deviation 3.4
MDMA-assisted Therapy (125 mg)Change in Functional Assessment of Chronic Illness Therapy Scale (FACIT) From Baseline to Primary EndpointEmotional well-being1.6 score on a scaleStandard Deviation 7.1
MDMA-assisted Therapy (125 mg)Change in Functional Assessment of Chronic Illness Therapy Scale (FACIT) From Baseline to Primary EndpointFunctional well-being4.8 score on a scaleStandard Deviation 5.8
Secondary

Change in Global Assessment of Functioning (GAF) Score From Baseline to Primary Endpoint

The Global Assessment of Function (GAF) is a measure of a person's global social functioning made through clinical observation. The GAF consists of a single score, with scores ranging from 0 to 100, with 100 reflecting superior function and zero reflecting serious risk of causing harm to the self or others.

Time frame: Baseline (3 months from enrollment) to Primary Endpoint (one month post 2nd experimental session)

Population: Intent-to-treat (ITT) set

ArmMeasureValue (MEAN)Dispersion
Placebo With TherapyChange in Global Assessment of Functioning (GAF) Score From Baseline to Primary Endpoint3.0 score on a scaleStandard Deviation 12.5
MDMA-assisted Therapy (125 mg)Change in Global Assessment of Functioning (GAF) Score From Baseline to Primary Endpoint6.6 score on a scaleStandard Deviation 9.7
Secondary

Change in MADRS Score From Baseline to Primary Endpoint

The Montgomery-Asberg Depression Rating Scale (MADRS) is a 10-item, clinician administered questionnaire used to diagnose the severity of depressive episodes. Each item has a score of 0 to 6. Overall scores are summed and range from 0 to 60. Score cutoffs indicate: 0-6 normal/symptom absent, 7-19 mild depression, 20-34 moderate depression, \> 34 severe depression. Higher scores indicate greater severe depression.

Time frame: Baseline (3 months from enrollment) to Primary Endpoint (one month post-2nd experimental session)

Population: Intent-to-treat (ITT) set

ArmMeasureValue (MEAN)Dispersion
Placebo With TherapyChange in MADRS Score From Baseline to Primary Endpoint-7.0 score on a scaleStandard Deviation 7.2
MDMA-assisted Therapy (125 mg)Change in MADRS Score From Baseline to Primary Endpoint-10.5 score on a scaleStandard Deviation 8.2
Secondary

Change in Pittsburgh Sleep Quality Inventory (PSQI) From Baseline to Primary Endpoint

The Pittsburgh Sleep Quality Index (PSQI) is a measure of self-reported sleep quality over a one month period. It consists of 19 items with possible responses ranging from zero to four on a five-point scale. The PSQI consists of seven sub-scales: sleep quality, sleep latency, sleep duration, habitual sleep efficiency, sleep disturbance, use of sleeping medications, and daytime dysfunction. These are all summed to produce a single global scale. Global scores can range from 0 to 21, with higher scores reflecting poorer sleep quality, and a score below 5 indicating good sleep quality.

Time frame: Baseline (3 months from enrollment) to Primary Endpoint (one month post-2nd experimental session)

Population: Intent-to-treat (ITT) set

ArmMeasureValue (MEAN)Dispersion
Placebo With TherapyChange in Pittsburgh Sleep Quality Inventory (PSQI) From Baseline to Primary Endpoint-0.2 score on a scaleStandard Deviation 1.3
MDMA-assisted Therapy (125 mg)Change in Pittsburgh Sleep Quality Inventory (PSQI) From Baseline to Primary Endpoint-3.6 score on a scaleStandard Deviation 5.4
Secondary

Change in Posttraumatic Growth Inventory (PTGI) From Baseline to Primary Endpoint

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. Questions are answered on a scale from 0 (I did not experience this change) to 5 (I experienced this change to a great degree). Items are added to calculate the total PTGI score which ranges from 0 to 105, with higher scores indicative of greater growth.

Time frame: Baseline (3 months from enrollment) to Primary Endpoint (one month post-2nd experimental session)

Population: Intent-to-treat (ITT) set

ArmMeasureValue (MEAN)Dispersion
Placebo With TherapyChange in Posttraumatic Growth Inventory (PTGI) From Baseline to Primary Endpoint-2.6 score on a scaleStandard Deviation 6.1
MDMA-assisted Therapy (125 mg)Change in Posttraumatic Growth Inventory (PTGI) From Baseline to Primary Endpoint12.9 score on a scaleStandard Deviation 23.2
Secondary

Change in Self-Compassion Scale (SCS) From Baseline to Primary Endpoint

The Self-Compassion Scale (SCS) is a 26-item self-reported questionnaire that assesses how respondents relate to themselves and treat themselves during difficult or painful experiences. Items are scored along a 5-point Likert-type scale ranging from 1 almost never to 5 almost always. The SCS has six component (subscale) scores: self-kindness, self-judgment, common humanity, isolation, mindfulness, and over-identification. Subscale scores are calculated by computing the mean of subscale item responses. A total self-compassion score is calculated by the sum of the subscale scores and range from 24 to 120 with higher scores indicating greater self compassion. Higher scores have been found to correlate with positive mental health outcomes, as well as decreased depression and anxiety.

Time frame: Baseline (3 months from enrollment) to Primary Endpoint (one month post-2nd experimental session)

Population: Intent-to-treat (ITT) set

ArmMeasureValue (MEAN)Dispersion
Placebo With TherapyChange in Self-Compassion Scale (SCS) From Baseline to Primary Endpoint-0.04 score on a scaleStandard Deviation 0.5
MDMA-assisted Therapy (125 mg)Change in Self-Compassion Scale (SCS) From Baseline to Primary Endpoint0.4 score on a scaleStandard Deviation 0.7
Secondary

Change in STAI State Score From Baseline to Primary Endpoint

The state subscale of the STAI (STAI-S) is a 20-item self-reported scale which assesses subjects' levels of transient, situationally oriented, anxiety. Like the trait subscale, participants respond to each item on the state subscale by selecting a response from a 4-point Likert scale ranging from 4 (Not at all) to 1 (Very much so), with higher scores indicating greater anxiety. Items were summed for a total score that ranged from 20 to 80. The STAI differentiates between State Anxiety, defined as anxiety experienced in reaction to a specific environmental circumstance, and Trait Anxiety, defined as long-standing nervous affect or anxiety disorder. The use of the trait subscale as the primary outcome measure is intended to target those anxiety symptoms that are chronic and pervasive.

Time frame: Baseline (3 months from enrollment) to Primary Endpoint (one month post-2nd experimental session)

Population: Intent-to-treat (ITT) set

ArmMeasureValue (MEAN)Dispersion
Placebo With TherapyChange in STAI State Score From Baseline to Primary Endpoint-6.0 score on a scaleStandard Deviation 15.8
MDMA-assisted Therapy (125 mg)Change in STAI State Score From Baseline to Primary Endpoint-22.1 score on a scaleStandard Deviation 17.9

Source: ClinicalTrials.gov · Data processed: Feb 17, 2026