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A study of the safety and tolerability of single doses of wafers containing cannabidiol (CBD) that dissolve under the tongue compared to CBD oil that is swallowed in healthy volunteers.

A phase I, open label, two-way crossover study to determine the pharmacokinetic effects, safety, and tolerability of single doses of sublingual cannabidiol wafers vs. cannabidiol oil in healthy volunteers

Status
Completed
Phases
Phase 1
Study type
Interventional
Source
ANZCTR
Registry ID
ACTRN12620000891921
Enrollment
12
Registered
2020-09-10
Start date
2020-09-11
Completion date
2020-11-14
Last updated
2021-07-05

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

None listed

Brief summary

This study will examine how much CBD is available in the blood when administered via a wafer dissolved under the tongue vs. oil that is swallowed. The study will also determine safety and side effects of CBD.

Interventions

A research clinic staff member will administer a single dose of 25mg cannabidiol wafer via sublingual route to each participant and will observe that the participant remains still to allow the wafer to dissolve. There will be a minimum of a 4 day washout before the second treatment is administered.

Sponsors

iX Biopharma Pty Ltd
Lead SponsorCommercial sector/Industry

Study design

Allocation
Randomised controlled trial
Intervention model
Crossover
Primary purpose
Treatment
Masking
Open (masking not used)

Eligibility

Sex/Gender
All
Age
18 Years to 65 Years
Healthy volunteers
Yes

Inclusion criteria

Healthy volunteer with no major medical conditions and a BMI between 19.0 to 25.0 kg/m2 inclusive. Females must be using acceptable birth control and not planning to become pregnant.

Exclusion criteria

Must not have used cannabinoid based medicine in the last 6 months. No blood donation within the past month. Must not consume grapefruit juice within 48 hours of study visits.

Outcome results

None listed

Source: ANZCTR · Data processed: Feb 4, 2026