Hallucinogens: all 554 studies that test it
Page 4 of 6. Open to participants first (189), then studies with results posted, then the rest; newest registration first within each.
- Neurobiological Effects of Psilocybin in Treatment Resistant Bipolar DepressionActive, not recruitingNCT06506019Phase 1
- Reducing Breathlessness With Dronabinol in COPD PatientsCompletedNCT06473701Phase 3
- Safety for Home Administration of Microdose Psilocybin UseCompletedNCT06450210Phase 1
- Psilocybin-assisted Existential, Attachment and RelationaL (PEARL) Therapy for Patients With Advanced CancerActive, not recruitingNCT06416085Phase 2
- Psilocybin-Assisted Cognitive Processing Therapy for Chronic PTSDActive, not recruitingNCT06386003Phase 2
- Low-Income Group Psilocybin Assisted Therapy for DepressionCompletedNCT06372197Not applicable
- MDMA-Assisted Psychotherapy for Treatment Resistant PTSD in AdolescentsWithdrawnNCT06353282Phase 2
- A Study to Evaluate the Safety, Tolerability, and Pharmacokinetics of MLS101 in Healthy ParticipantsCompletedNCT06326606Phase 1
- Psilocybin for Major Depressive Disorder (MDD)Active, not recruitingNCT06308653Phase 3
- Psilocybin-Assisted Therapy in Treatment-Resistant DepressionActive, not recruitingNCT06303739Phase 3
- Feasibility, Clinical Effects, and Safety of Psilocybin-assisted Psychotherapy for Treatment-resistant OCDCompletedNCT06299319Phase 1
- PsilOCD: A Pharmacological-Challenge Feasibility StudyCompletedNCT06258031Phase 1
- High Confusion: Cannabis & DrivingCompletedNCT06236815Early Phase 1
- Psilocybin in Alcohol Use Disorder With Comorbid DepressionCompletedNCT06235411Not applicable
- Psilocybin for Treatment-Resistant DepressionCompletedNCT06230757Phase 2
- Delta-8-THC vs. Delta-9-THC on Simulated Driving PerformanceCompletedNCT06218550Phase 1
- Epigenetics and MDMA-Assisted Psychotherapy for PTSDCompletedNCT06189027Phase 3
- MDMA-assisted Massed Prolonged Exposure for PTSDActive, not recruitingNCT06117306Phase 3
- Safety Profile of Psilocybin for Cocaine Use DisorderSuspendedNCT06102434Early Phase 1
- Safety, Tolerability and Antidepressant Effects of DMT in Patients With DepressionCompletedNCT06094907Phase 2
- Does Serotonin System Stimulation Increase Pro-social Behavior? - A Comparative Pharmacological Neuroscientific Study in Healthy HumansCompletedNCT06081179Phase 1
- Does Psilocybin Change Synaptic Density in Amnestic Mild Cognitive ImpairmentCompletedNCT06041152Phase 2
- Evaluation of Safety, Rate and Extent of Absorption of Psilocin MucateCompletedNCT06035900Phase 1
- Oral Dronabinol-HIVActive, not recruitingNCT06034314Phase 1
- Inpatient Buprenorphine Induction With Psilocybin for Opioid Use DisorderWithdrawnNCT06005662Phase 2
- MDMA-assisted Brief Cognitive Behavioral Conjoint Therapy for PTSDCompletedNCT05979844Phase 3
- LSD-Perceptual-Choice-StudyCompletedNCT05976698Not applicable
- Effect of Ketanserin, Olanzapine, and Lorazepam After LSD Administration on the Acute Response to LSD in Healthy SubjectsCompletedNCT05964647Phase 1
- Group MDMA-therapy for Veterans With PTSDCompletedNCT05961527Phase 1/2
- LSD Occupancy of the Serotonin 2A Receptor in the Human BrainActive, not recruitingNCT05953038Early Phase 1
- Prosocial Effects of MDMACompletedNCT05948683Early Phase 1
- Two Doses of Psilocybin for the Treatment of MDD in Adults With CancerActive, not recruitingNCT05947383Phase 2
- MDMA for AUD/PTSD ComorbidityCompletedNCT05943665Phase 2
- Safety and Tolerability of DMT in Healthy AdultsCompletedNCT05901012Phase 1
- An Investigation of Psilocybin on Behavioural and Cognitive Symptoms of Adults With Fragile X SyndromeSuspendedNCT05832255Phase 2
- Acute Effects of 3,4-methylenedioxymethamphetamine (MDMA) With and Without a Booster DoseCompletedNCT05809271Phase 1
- Mindfulness and PsychedelicsCompletedNCT05780216Early Phase 1
- A Phase II, Multicentre, Randomised, Double-blind, Controlled Study to Investigate the Safety, Tolerability, Pharmacokinetics, and Efficacy of COMP360 in Participants With Recurrent Major Depressive DisorderActive, not recruitingNCT05733546Phase 2
- Psilocybin in Functional Neurological DisorderCompletedNCT05723276Not applicable
- Efficacy, Safety, and Tolerability of Two Administrations of COMP360 in Participants With TRDActive, not recruitingNCT05711940Phase 3
- Does Psilocybin Require Psychedelic Effects to Treat Depression?CompletedNCT05710237Phase 2
- Neural and Physiological Correlates of Psychedelic Sub-statesActive, not recruitingNCT05698511Phase 1
- Acute Dose-dependent Effects of DMT-bolus Applications in Healthy Subjects (DMT BDR-Study)CompletedNCT05695495Phase 1
- Psilocybin for Major Depressive DisorderWithdrawnNCT05675800Phase 2
- A Dose-Ranging Study of 50 µg to 100 µg LSD in Healthy VolunteersCompletedNCT05674669Phase 1
- The Effect of LSD on Neural Synchrony, Prosocial Behavior, and Relationship QualityStatus unknownNCT05670184Phase 1/2
- Psilocybin in Adults With and Without Autism Spectrum DisorderCompletedNCT05651126Not applicable
- Psilocybin-Assisted Psychotherapy in Adults With Alcohol Use Disorder (AUD)Active, not recruitingNCT05646303Phase 2
- IM and IV SPL026 Drug Product in Healthy ParticipantsCompletedNCT05644093Phase 1
- Efficacy, Safety, and Tolerability of COMP360 in Participants With TRDCompletedNCT05624268Phase 3
- Dronabinol for Agitation in Dementia Crossover TrialWithdrawnNCT05612711Phase 2
- PET Synaptogenesis After Psilocybin In DEpression RecoveryWithdrawnNCT05601648Phase 2
- Effect of SSRIs on Response to Psilocybin TherapyWithdrawnNCT05594667Phase 2
- Clinical Study of DMT in Healthy AdultsCompletedNCT05573568Phase 1
- Safety and Tolerability of Psilocybin in Post-Traumatic Stress DisorderWithdrawnNCT05562973Phase 1
- Single and Repeat Doses of DMT in Healthy SubjectsActive, not recruitingNCT05559931Phase 1
- PAPR: PAP + MBSR for Front-line Healthcare Provider COVID-19 Related BurnoutCompletedNCT05557643Phase 1
- Psilocybin for the Treatment of Veterans With Post-Traumatic Stress DisorderCompletedNCT05554094Phase 2
- SPL026 With or Without SSRIs in Participants With MDDCompletedNCT05553691Phase 1
- Effects of Psilocybin in Obsessive Compulsive DisorderActive, not recruitingNCT05546658Early Phase 1
- Psilocybin Combined With Multidisciplinary Palliative Care in Demoralized Cancer Survivors With Chronic PainCompletedNCT05506982Phase 1
- Efficacy and Safety of COMP360 Psilocybin Therapy in Anorexia Nervosa: a Proof-of-concept StudyCompletedNCT05481736Phase 2
- The Pharmacodynamics of Cannabinoid-Caffeine CombinationsCompletedNCT05478863Early Phase 1
- An Evaluation of Psilocybin's Effect on Cardiac Repolarization and the Effect of Food on Psilocybin's PharmacokineticsCompletedNCT05478278Phase 1
- Bioavailability Study of Psilocybin in Normal AdultsWithdrawnNCT05467761Phase 1
- Dose-Ranging Trial of Inhaled Cannabis for Acute Migraine TreatmentSuspendedNCT05427630Phase 2
- Psilocybin-Assisted vs Ketamine-Assisted Psychotherapy for Alcohol Use DisorderActive, not recruitingNCT05421065Phase 2
- Psilocybin-assisted Therapy for Treatment of Alcohol Use DisorderCompletedNCT05416229Phase 2
- Psilocybin in Co-occuring Major Depressive Disorder and Borderline Personality DisorderCompletedNCT05399498Phase 2
- Acute Dose-dependent Effects of DMT in Healthy SubjectsCompletedNCT05384678Phase 1
- The Effects of Psilocybin on Self-Focus and Self-Related Processing in Treatment Resistant MDDWithdrawnNCT05381974Phase 2
- Effects of Stimulants on Behavioral and Neural Markers of Social Motivation, Ability, and Neural Markers of Social FunctionCompletedNCT05379959Early Phase 1
- Effects of Repeated Psilocybin Dosing in OCDActive, not recruitingNCT05370911Phase 1
- Dronabinol After Arthroscopic SurgeryActive, not recruitingNCT05335252Phase 3
- Study of the Safety and Feasibility of Psilocybin in Adults With Methamphetamine Use DisorderTerminatedNCT05322954Phase 1
- Comparing the Effects of Psilocin and Psilocybin in Healthy AdultsActive, not recruitingNCT05317689Phase 1
- Effects of Psilocybin in Post-Treatment Lyme DiseaseCompletedNCT05305105Phase 1
- CBD (Cannabidiol)/THC (Tetrahydrocannabinol) Solution as a Pharmacological Strategy for Patients With Fibromyalgia (FibroCann)Status unknownNCT05283161Phase 2/3
- Acute Effects of R- and S-MDMA in Healthy SubjectsCompletedNCT05277636Phase 1
- Clinical Trial on Pharmacokinetics and Tolerability of AP707CompletedNCT05267769Phase 1
- Mood and Cognitive Effects of Psilocybin in Healthy ParticipantsWithdrawnNCT05252598Early Phase 1
- Investigating the Therapeutic Effects of Psilocybin in Treatment-Resistant Post-Traumatic Stress DisorderActive, not recruitingNCT05243329Phase 2
- Psilocybin for Opioid Use Disorder in Patients on Methadone Maintenance With Ongoing Opioid UseWithdrawnNCT05242029Phase 2
- Exploratory Study of Low Dose PsilocybinWithdrawnNCT05227742Early Phase 1
- Activation of the Endocannabinoid System and CognitionCompletedNCT05226351Not applicable
- Psilocybin-assisted Therapy for Phantom Limb PainActive, not recruitingNCT05224336Phase 1
- The Safety and Efficacy of Psilocybin in Patients With Treatment-resistant Depression and Chronic Suicidal IdeationCompletedNCT05220410Phase 2
- Palliadelic Treatment to Reduce Psychological Distress in Persons With Advanced Gastrointestinal CancersCompletedNCT05220046Phase 1
- Is Medicinal Cannabis an Effective Treatment for Tourette Syndrome in Adolescents? a Pilot StudyCompletedNCT05184478Phase 1/2
- Effects of LSD on Neuroplasticity in Healthy SubjectsCompletedNCT05177419Phase 1
- Study of Feasibility and Safety of MDMA-Assisted Group Therapy for the Treatment of PTSD in VeteransWithdrawnNCT05173831Phase 2
- Naturalistic Study of Microdosing With PsilocybinCompletedNCT05160220Not applicable
- Food Effects on Bioavailability of MDMA in Healthy VolunteersCompletedNCT05147402Phase 1
- Social Anxiety MDMA-Assisted Therapy InvestigationCompletedNCT05138068Phase 2
- Drug Effects on Interpersonal InteractionCompletedNCT05123716Early Phase 1
- A Phase 2 Open-Label Treatment Development Study of MDMA-Assisted Cognitive Processing Therapy (CPT) for Posttraumatic Stress Disorder (PTSD)CompletedNCT05067244Phase 2
- Psilocybin Therapy for Depression in Bipolar II DisorderActive, not recruitingNCT05065294Phase 2
- Psilocybin for Treatment-Resistant DepressionCompletedNCT05029466Phase 2
- Pharmacokinetics of SP-104CompletedNCT05002946Phase 1
- Psilocybin-Enhanced Psychotherapy for Methamphetamine Use DisorderActive, not recruitingNCT04982796Phase 1/2