A clearer reading

Registered cannabinoid clinical studies

Follow stable registry IDs, sponsor-reported status and separate results states.

Content reviewed 2026-10-25 · Local preview

Six curated registry examples: four linked primary-paper registrations and two formulation/recruitment examples. Not an exhaustive trial search or a recruitment service. Registry status is sponsor-reported and may lag. Registration, publication and posted registry results are separate states. These international research examples are not product or destination eligibility advice.

CompletedNCT02091375

Antiepileptic Efficacy Study of GWP42003-P in Children and Young Adults With Dravet Syndrome (GWPCARE1)

GWP42003-P purified CBD oral solution, compared with matched placebo alongside existing treatment.

Children and young adults with Dravet syndrome.

Phase 3

Registry resultsResults posted

Interpretation limit

A specific investigational/prescription-style preparation and patient population; not evidence for retail CBD equivalence.

Registry updated 2022-09-28
Source checked 2026-10-25

Original registry record ↗

CompletedNCT02044809

Cannabidiol: a Novel Intervention for Cannabis Use Problems?

Oral cannabidiol preparations compared with placebo.

People seeking treatment for cannabis use problems.

Phase 2

Registry resultsNo registry results

Interpretation limit

A published linked paper is separate from results tables posted in this registry. Registration is not a treatment recommendation.

Registry updated 2018-10-24
Source checked 2026-10-25

Original registry record ↗

CompletedNCT05257044

Acute Effects of Cannabigerol

CBG oral preparation compared with placebo in a crossover design.

Adults in an acute-effects field study; see linked paper for analyzed sample and formulation.

Phase 1

Registry resultsNo registry results

Interpretation limit

Acute subjective measures in a selected sample do not establish treatment for a diagnosed anxiety disorder.

Registry updated 2026-06-02
Source checked 2026-10-25

Original registry record ↗

CompletedNCT05344170

Cannabinol Use in Patients With Insomnia Disorder

ECS 310 CBN in MCT oil compared with matched placebo.

Adults with insomnia disorder.

Phase 1 / Phase 2

Registry resultsNo registry results

Interpretation limit

Single-night crossover research. The linked paper reported no statistically significant change in its primary wake-after-sleep-onset endpoint.

Registry updated 2024-02-06
Source checked 2026-10-25

Original registry record ↗

RecruitingNCT06107062

Longitudinal Outpatient Treatment for Cannabis Use Disorder

Full-spectrum CBD capsules, broad-spectrum CBD capsules and placebo are separate study arms.

Adults with cannabis use disorder.

Phase 2

Registry resultsNo registry results

Interpretation limit

Linked research is background, not a result of this ongoing study. Registry descriptions of spectrum or THC are protocol claims, not tested retail batches.

Registry updated 2026-06-12
Source checked 2026-10-25

Original registry record ↗

RecruitingNCT06574100

Relative Bioavailability of Two Orally Administered CBD Formulations in Healthy Male Adults

CBD powder and buccal-strip preparations; separate fed/fasted comparisons.

Healthy male adults in a bioavailability study.

Phase 1

Registry resultsNo registry results

Interpretation limit

Pharmacokinetic endpoints do not establish symptom benefit, interchangeable retail products or a dosing recommendation.

Registry updated 2025-03-30
Source checked 2026-10-25

Original registry record ↗

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