Drug
Lysergic Acid Diethylamide clinical trials
Also written LSD.
Includes 6 studies of Lysergide D-tartrate.
Keep track of what changes. Save the Lysergic Acid Diethylamide studies recruiting or about to start, and get an email each week — studies that open, close, add sites or post results.
Watch these studiesHow studies write it
Studies that test it under each name
Studies by the year they started
35 studies that test it; most in 2025 (7)
| Year | Studies |
|---|---|
| 2008 | 1 |
| 2013 | 1 |
| 2014 | 1 |
| 2015 | 3 |
| 2017 | 2 |
| 2018 | 1 |
| 2019 | 3 |
| 2020 | 1 |
| 2021 | 2 |
| 2022 | 4 |
| 2023 | 2 |
| 2024 | 4 |
| 2025 | 7 |
| 2026 | 3 |
By phase
A phase 1/2 study counts in both.
What it is tested for
Each study’s main condition, where its own words name it.
- Pain
- 1
Who runs them
Industry 8 · Other 27
University Hospital, Basel, Switzerland (14) · Definium Therapeutics US, Inc. (6) · University of Chicago (3) · Eleusis Therapeutics (2) · Felix Mueller (2) · Rigshospitalet, Denmark (1) · University of Fribourg (1) · Multidisciplinary Association for Psychedelic Studies (1)
Often tested with
Tested in the same studies.
N-Methyl-3,4-methylenedioxyamphetamine (3) · Psilocybin (3) · Ketanserin (2) · Olanzapine (1) · Lorazepam (1) · Amphetamine (1) · N,N-Dimethyltryptamine (1)
Related medicines
As reviewed, each with the page that says it.
- One of Hallucinogens source
- One of Serotonin Receptor Agonists source
Studies
Open first, then newest update. How each study uses Lysergic Acid Diethylamide is read from its arms, and is right about nine times in ten.
Testing it · 35
- A Phase 3 Trial of DT120 for Major Depressive Disorder (Ascend)RecruitingPhase 3Definium Therapeutics US, Inc.NCT07592689Written as DT120
- LSD Treatment for Persons With Alcohol Use DisorderRecruitingPhase 2Felix MuellerNCT05474989Written as LSD
- Shortened LSD Intervention for Major Depressive DisorderNot yet recruitingPhase 1Johns Hopkins UniversityNCT07503002Written as LSD
- Lysergic Acid Diethylamide (LSD) in Palliative CareRecruitingPhase 2University Hospital, Basel, SwitzerlandNCT05883540Written as Lysergic Acid Diethylamide Tartrate
- Microdosing LSD in Women With Premenstrual DisordersNot yet recruitingNot applicableFriederike HolzeNCT07189299Written as LSD 10 μg every Day
- LSD to Improve Cluster Headache Impact TrialRecruitingPhase 2Radboud University Medical CenterNCT05477459Written as LSD tartrate
- The Role of Personal Experience for the Therapeutic Attitude in the Context of Substance-assisted Therapy TrainingEnrolling by invitationNot applicableFelix MuellerNCT05570708Written as MDMA, LSD, psilocybin
- Direct Comparison of Altered States of Consciousness Induced by LSD, Psilocybin, and DMT in Healthy ParticipantsRecruitingPhase 1University Hospital, Basel, SwitzerlandNCT06899334Written as LSD
- Lysergic Acid Diethylamide (LSD) as Treatment for Cluster HeadacheRecruitingPhase 2University Hospital, Basel, SwitzerlandNCT03781128Written as Lysergic Acid Diethylamide
- A Phase 3 Trial of DT120 for Generalized Anxiety Disorder (Voyage)Active, not recruitingPhase 3Definium Therapeutics US, Inc.NCT06741228Written as DT120
- A Phase 3 Trial of MM120 for Generalized Anxiety Disorder (Panorama)Active, not recruitingPhase 3Definium Therapeutics US, Inc.NCT06809595Written as DT120
- A Phase 3 Trial of DT120 for Major Depressive Disorder (Emerge)Active, not recruitingPhase 3Definium Therapeutics US, Inc.NCT06941844Written as DT120
- Mood Effects of Serotonin Agonists: DepressionCompletedEarly Phase 1University of ChicagoNCT07017478Written as LSD
- Drug Effects on Mood and Behavior - ExpectancyCompletedEarly Phase 1University of ChicagoNCT07061886Written as LSD
- LSD Occupancy of the Serotonin 2A Receptor in the Human BrainActive, not recruitingEarly Phase 1Rigshospitalet, DenmarkNCT05953038Written as Lysergic Acid Diethylamide Tartrate
- LSD-Perceptual-Choice-StudyCompletedNot applicableUniversity Hospital, Basel, SwitzerlandNCT05976698Written as LSD 10 μg
- Safety and Efficacy of Low Dose MM120 for ADHD Proof of Concept TrialCompletedPhase 2Definium Therapeutics US, Inc.NCT05200936Written as MM120
- A Dose-Finding Study of MM120 (LSD D-Tartrate) for the Treatment of Anxiety SymptomsCompletedPhase 2Definium Therapeutics US, Inc.NCT05407064Written as MM120
- Effect of Ketanserin, Olanzapine, and Lorazepam After LSD Administration on the Acute Response to LSD in Healthy SubjectsCompletedPhase 1University Hospital, Basel, SwitzerlandNCT05964647Written as LSD (150 µg) + ketanserin (40 mg)
- LSD Therapy for Persons Suffering From Major DepressionCompletedPhase 2University Hospital, Basel, SwitzerlandNCT03866252Written as LSD
See all 35 studies that test Lysergic Acid Diethylamide →
Given in every arm · 2 — Lysergic Acid Diethylamide is usual care beside what is tested
- Effects of SERT Inhibition on the Subjective Response to LSD in Healthy SubjectsCompletedPhase 1University Hospital, Basel, SwitzerlandNCT05175430Written as Lysergic Acid Diethylamide
- Effect of Ketanserin After LSD AdministrationCompletedPhase 1University Hospital, Basel, SwitzerlandNCT04558294Written as Lysergic Acid Diethylamide
As the comparator · 1 — what is tested is compared with Lysergic Acid Diethylamide
Codes
What other systems call Lysergic Acid Diethylamide · ClinicalTrials.gg INT007755
- MeSH (NLM) D008238Lysergic Acid DiethylamideConfirmed ClinicalTrials.gov, NLM, Wikidata
- UNII (FDA) 8NA5SWF92OLYSERGIDEConfirmed FDA, NLM, Wikidata
- Wikidata Q23118lysergic acid diethylamideConfirmed FDA, NLM, Wikidata
- DrugBank DB04829One source Wikidata
| System | Code | Name there | Checked by |
|---|---|---|---|
| MeSH (NLM) | D008238 | Lysergic Acid Diethylamide | Confirmed ClinicalTrials.gov, NLM, Wikidata |
| UNII (FDA) | 8NA5SWF92O | LYSERGIDE | Confirmed FDA, NLM, Wikidata |
| Wikidata | Q23118 | lysergic acid diethylamide | Confirmed FDA, NLM, Wikidata |
| DrugBank | DB04829 | — | One source Wikidata |
Also registered as lysergide tartrate (UNII KXF3755R6D).
“Confirmed” means two independent publishers link the code to this drug; “one source”, one does and its name agrees.