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Prospective, placebo-controlled, double-blind, randomized, cross-over study for the assessment of the blood concentration-response relationship of cannabidiol (CBD) and tetrahydrocannabinol (THC) after single and repetitive vapor inhalation of CBD-rich legal cannabis products and its potential implication on the driving ability

Prospective, placebo-controlled, double-blind, randomized, cross-over study for the assessment of the blood concentration-response relationship of cannabidiol (CBD) and tetrahydrocannabinol (THC) after single and repetitive vapor inhalation of CBD-rich legal cannabis products and its potential implication on the driving ability - CBDrive

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
DRKS
Registry ID
DRKS00018836
Enrollment
60
Registered
2019-10-25
Start date
2019-09-23
Completion date
Unknown
Last updated
2025-04-07

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

Conditions

Healthy Participants

Interventions

Group 1: Single consumption: In study arm 1, healthy participants aged 18-65 years are administered (i.e. inhaled via a vaporizer) a study intervention (1) CBD >15%, THC 0.7-1%
2) CBD >15%, THC = 0.3%
3) CBD and THC = 0.2%). Before the intervention urine and blood samples are collected. Blood might be sent for analysis of polymorphisms of metabolizing enzymes such as cytochrome P450 family and UDP-

Sponsors

Institut für Rechtsmedizin der Universität Basel
Lead Sponsor

Eligibility

Sex/Gender
All
Age
18 Years to 65 Years

Inclusion criteria

Inclusion criteria: Age 18-65 years, driving license category B, sufficient knowledge of German language, experience with nicotine and/or cannabis products.

Exclusion criteria

Exclusion criteria: Psychiatric or physical disease (including addictive disorders), long-term medication, drug or alcohol abuse, insufficient knowledge of German language, no current driving license, pregnancy, breastfeeding or planned pregnancy in women, no experience with nicotine or cannabis products, limited availability, non-compliance regarding abstaining from alcohol, controlled substances, cannabis products (incl. CBD cannabis other than study intervention), non-compliance regarding abstaining from driving on study days.

Design outcomes

Primary

MeasureTime frame
Blood and urine concentrations of CBD and THC after CBD-cannabis consumption.

Secondary

MeasureTime frame
Driving ability after CBD-cannabis consumption.

Countries

Switzerland

Contacts

Public ContactLaura Egloff

Institut für Rechtsmedizin der Universität Basel

laura.egloff@bs.ch+41 61 267 38 73

Outcome results

None listed

Source: DRKS (via WHO ICTRP) · Data processed: Feb 8, 2026