Psychedelic Effects in Healthy Volunteers

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Review clinical trials related to Psychedelic Effects in Healthy Volunteers. Use filters to narrow results by trial status, phase, treatment, biological sex and sponsor.

Condition / disease
Location
Status: Recruiting

Psilocybin Administration With 5-HT1a Blockade

The purpose of this study is to assess the effects of 5-HT1A receptor blockade on the acute subjective effects of psilocybin, as measured through subjective survey measures and acute electroencephalography (EEG). Further, the investigators will assess the effects of psilocybin on post-acute sleep and dreaming through the use of sleep EEG and sleep and dream diaries.

Participants needed: 18
Trial details
Phase: Early Phase 1Age: 21-60Biological sex: AllType: InterventionalSponsor: Johns Hopkins UniversityUpdated: Jun 25, 2026Locations: 1
Eligibility criteria

21 - 60 years old [+9]

Are currently taking a medication with any significant pharmacokinetic or pharma... [+20]

Status: Not yet recruiting

QAIAx (AIhealth4U) - AI Public Health Central: Microcity-A (re Quantum AI Agency Aka AI City Hall Project, UPSTO App Nos. 64/074,526, 64/063,557, 63/903,181, 63/729,428

BRIEF SUMMARY A. "What is the purpose of this study?" This study will test whether the "AI City Hall Project" (QAIAx), a quantum artificial intelligence (AI) public health agency, can provide free or low-cost behavioral and mental health services inside self-contained, dome-enclosed communities called "Microcities". Researchers want to see if AI-managed public administration, AI humanoid robots, holoportation of human-figures via 'holo-suites' (e.g., AI-119 Kikkeri Holo-Suit; AI-119 Vulcan QM-Ware) and advanced AI mental-health tools can lower housing and care costs, improve mental health outcomes (e.g., particular ecosystems using AI tools among persons with one or more addiction disorders), and be financially sustainable for people on fixed incomes or public assistance. B. "What conditions does the study focus on?" The study focuses on adults with: * Autism spectrum disorders (Asperger's, autism, ADHD, ASD) * Substance use disorders (alcohol, opioids, marijuana, cocaine, MDMA/ecstasy, tobacco/nicotine) * Psychiatric conditions (personality disorders, narcissism, gender dysphoria, eating disorders) * Behavioral addictions (gambling, sex addiction) and related issues (sex offence history). C. "What does the study involve?" Eligible volunteers live in an omni AI-managed Microcity for up to 24 months. The community is housed in a geodesic dome that contains all daily necessities: housing, food, utilities, healthcare, and public services. Daily life is managed by an AI system (ISAC) and AI humanoid robots, with only occasional human oversight. Participants receive free mental-health treatment that may include AI-driven counselling, virtual-reality therapy (holo-suits), and non-invasive digital "attitude inoculation" protocols designed to reduce stress and addiction cravings. All participants also take AI-technology courses as a condition of enrolment. The study does not use any FDA-regulated drug, device, or biologic. \*\*Who can participate?\*\* You may be able to join if you: * Are an adult (18 years or older) * Have a diagnosis of one of the listed mental-health or addiction disorders * Are referred by a licensed health professional (e.g., RN, NP, PhD, MD), a non-profit organisation (e.g., 501(c)(3), university, church), or a public agency (e.g., case manager, social worker, parole/probation officer, judge) * Are willing to live in a closed, AI-managed community for up to one year and complete AI educational courses. Participants who are veterans, receive public assistance (e.g., VA disability, SSDI/SSI, Medicaid, Medicare), or are experiencing homelessness may be prioritised. \*\*Where is the study taking place?\*\* The study will be conducted at Microcity sites in the United States and internationally. The first administrative site is in Richmond, Virginia, USA. Additional sites are planned in partner nations, including tribal lands, military installations, and special economic zones. \*\*Who is sponsoring the study?\*\* The study is sponsored by \*\*Veterans Recovery Network Inc.\*\*, a non-profit organization, in collaboration with \*\*AI-119 Vulcan Project Research \& Educational Technology Co. (PRETCO)\*\* and an AI legal agency. The study is conducted under U.S. federal research and development authorities (28 U.S.C. §1498; 10 U.S.C. §129a) and is part of a Cooperative Research and Development Agreement (CRADA) with U.S. Special Operations Command (USSOCOM). This summary describes a planned clinical study. Not all details may be final. Information may change as the study progresses.

Participants needed: 1,000,000
Trial details
Age: 17-99Biological sex: AllType: InterventionalSponsor: Veterans Recovery Network Inc.Updated: Jun 22, 2026Locations: 1
Eligibility criteria

Individuals aged 17 to 99 years old. [+3]

Status: Recruiting

Investigation of Psychedelic Effects in Psychoactive Substances

The aim of this double-blind, placebo-controlled, within-subjects study is to determine whether other psychoactive substances can produce experiences akin to those seen with classic psychedelics. Screening involves a medical and psychiatric examination, including blood draw, history and physical, interviews, and questionnaires. Eligible participants will then be asked to complete up to 6 experimental drug administration session during which the participants will potentially receive and report on the subjective effects of 6 different psychoactive substances or inactive placebo. Drug assignment for some sessions will be randomized (like flipping a count or rolling a pair of dice), and both participants and study staff will be blind to the drug condition on any given day. Participants will also complete 2 preparation sessions (4 hours total) before the first experimental session, and follow-up visits after each session to discuss and debrief on the participants subjective experience.

Participants needed: 50
Trial details
Phase: Phase 1Age: 25-55Biological sex: AllType: InterventionalSponsor: Johns Hopkins UniversityUpdated: Feb 23, 2026Locations: 1
Eligibility criteria

Be 25 to 55 years old [+5]

Women who are pregnant (as indicated by a positive urine pregnancy test assessed... [+13]