Preliminary evidence for the importance of therapeutic alliance in MDMA-assisted psychotherapy for posttraumatic stress disorder
Open accessAbstract
Background: MDMA-assisted psychotherapy (MDMA-AP) is a combined psychotherapeutic and pharmacologic intervention that shows promise in the treatment of posttraumatic stress disorder (PTSD). Although therapeutic alliance has been established as a key predictor across psychotherapies and is emphasised within MDMA-AP treatment manuals, research has not yet examined the relationship between therapeutic alliance and MDMA-AP treatment outcomes.Objective: Examine whether therapeutic alliance predicts changes in PTSD symptoms following MDMA-AP.Method: Twenty-three individuals with chronic PTSD participated in a MDMA-AP clinical trial that included a randomised (MDMA vs. placebo) and open-label phase. The present analyses focused on participants who were administered MDMA over the course of the randomised and open-label phases (n = 22). Therapeutic alliance was assessed using the Working Alliance Inventory at sessions baseline (pre-session 3) and sessions 4 and 9. PTSD symptoms were assessed using the Clinician Administered PTSD Scale and the Impact of Events Scale-Revised.Results: Controlling for baseline clinician-assessed PTSD severity, therapeutic alliance at sessions 4 and 9 (but not baseline) significantly predicted post-MDMA-AP clinician-assessed PTSD severity. Controlling for baseline self-reported PTSD severity, therapeutic alliance at baseline (although this did not survive correction for multiple comparisons) and sessions 4 and 9 predicted post-MDMA-AP self-reported PTSD severity.Conclusions: The present results provide the first preliminary evidence for the relationship between the therapeutic alliance and treatment outcomes within MDMA-AP for PTSD. These findings highlight the important role of psychotherapy, and common psychotherapeutic factors, within MDMA-AP. Replication in studies with larger and more diverse clinical samples remain necessary.Trial registration: ClinicalTrials.gov identifier: NCT00090064.
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Therapist-patient relationship is one of the strongest predictors of treatment success across psychotherapeutic approaches, including PAT.
“Studies indicate that the therapist-patient relationship is one of the strongest predictors of treatment success across psychotherapeutic approaches, including PAT (166, 169–171).”
From Psychoanalytically informed MDMA-assisted therapy for pathological narcissism: a novel theoretical approach (2025) · cites this paper as [171]
The Abstract describes therapeutic alliance as a key predictor of psychotherapy outcomes generally, and the Results report that alliance at sessions 4 and 9 predicted outcomes in MDMA-assisted psychotherapy for PTSD. The Discussion also reports a similar finding in psilocybin therapy. The paper does not establish that the relationship is one of the strongest predictors across psychotherapeutic approaches or psychedelic-assisted therapies generally. (LLM, conf=0.83)
Experimental — accuracy not yet measuredIntegrating MDMA-AT with psychoanalytic principles may establish therapeutic relationship as corrective emotional experience, fostering meaningful psychological change in individuals with PN.
“Integrating MDMA-AT with psychoanalytic principles may further establish the therapeutic relationship as a corrective emotional experience, fostering meaningful psychological change in individuals with PN (170, 171).”
From Psychoanalytically informed MDMA-assisted therapy for pathological narcissism: a novel theoretical approach (2025) · cites this paper as [171]
The Results (Primary analysis; page unavailable) associate stronger therapeutic alliance during MDMA-assisted psychotherapy with lower post-treatment PTSD severity. The Discussion describes this as preliminary support for alliance’s role in treatment outcomes, but the paper does not examine integration with psychoanalytic principles, a corrective emotional experience, or outcomes in individuals with PN. (LLM, conf=0.85)
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MDMA-Assisted Therapy for PTSD: Neuroplastic Change or Psychotherapeutic Catalyst?
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Patient-Driven Care in Psychedelic Therapy
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- Authors
- Zeifman, R. J., Kettner, H., Ross, S., Weiss, B., Mithoefer, M. C., Mithoefer, A. T., & Wagner, A. C.
- Affiliations
- NYU Langone Health (US)
- Imperial College London (GB)
- MAPS Public Benefit Corporation (MPBC)
- Toronto Metropolitan University (CA)
- Corresponding author
- Zeifman, Richard J.
- Venue
- European Journal of Psychotraumatology
- Publisher
- Informa UK Limited
- Published
- 2024-01-04
- Volume
- 15
- Issue
- 1
- Pages
- 2297536-2297536
- ISSN
- 2000-8066 (ISSN-L)
- PMC
- PMC10769553
- OpenAlex
- W4390586775
- Cited by
- 37
- References
- 60
- Citations by year
- 2026: 11 · 2025: 17 · 2024: 9
- FWCI
- 18.55
- Type
- journal article
- Language
- en
- Open access
- gold
- doi.org
- Licence
- Locations
- European Journal of Psychotraumatology (publishedVersion, cc-by-nc)
- PubMed Central (publishedVersion, cc-by-nc)
- PubMed (publishedVersion)
- DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
- Funders
- Canadian Institutes of Health Research (202110MFE-472921-HTB-272687)
- MAPS Public Benefit Corporation
- Topics
- Social Sciences › Psychology › Clinical Psychology › Psychedelics and Drug Studies
- Social Sciences › Psychology › Clinical Psychology › Psychotherapy Techniques and Applications
- Social Sciences › Psychology › Clinical Psychology › Posttraumatic Stress Disorder Research
- Keywords
- MDMA-assisted psychotherapy, therapeutic relationship, post-traumatic stress disorder, chronic PTSD, treatment outcome prediction, MDMA, Working Alliance Inventory
- MeSH terms
- Therapeutic Alliance, Double-Blind Method, Humans, Psychotherapy, Stress Disorders, Post-Traumatic, N-Methyl-3,4-methylenedioxyamphetamine
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