Table 5.

Overview of clinical studies of LSD for the treatment of PTSD.

Study First Author, Year	Sample Size	Method	Measures	Study Type	Effect	Statistical Outcome
Oehen and Gasser, 2022 [623]	n = 50	Characterization of a model utilizing MDMA- and LSD- (sequentially) assisted group / individual psychotherapy for patients with various trauma-related disorders including complex PTSD (c-PTSD) in a clinical practice in Switzerland (PAP)	Outcomes assessed via clinical judgment; structured assessments not utilized regularly	N/A	Majority of participants improved, as assessed by clinical judgment.	N/A

Abbreviations: c-PTSD: Complex post-traumatic stress disorder, LSD: Lysergic acid diethylamide, MDMA: 3,4-methylenedioxy-methamphetamine, PAP: Psychedelic-Assisted Psychotherapy, PTSD: Post-traumatic stress disorder.