Ongoing clinical trials

Epilepsy

Anxiety and mental health

For these topics in this group, no ongoing trials appear right now: Panic Attacks.

Pain and surgery

Cancer

For these topics in this group, no ongoing trials appear right now: Appetite Loss in Cancer, Cancer Risk.

Sleep

Neurodevelopmental

For these topics in this group, no ongoing trials appear right now: Tourette Syndrome.

Other

For these topics in this group, no ongoing trials appear right now: Glaucoma, Spasticity Other Than MS, Irritable Bowel and Stomach Problems.

Outside the topics in the guide

These trials do not fall under any of the 40 topics in our guide: other conditions, and drug-level and interaction studies in healthy volunteers, for example.

Other registries

CBD trials in other countries’ registries that are not on ClinicalTrials.gov: Australia, Brazil, the European Union, the United Kingdom, Iran and others. They are collected once a month from the World Health Organization’s platform that brings these registries together (ICTRP). 19 of them were registered in the last three years and are recruiting.

Status information in these registries is often not updated: a record older than three years may still say "recruiting" even though the trial has ended; we have marked these "status may be out of date". The registry in Turkey (TİTCK) is also checked once a month; no CBD drug trial appears to be registered there right now.

How to read this list

Phase shows which stage of testing in people a drug is at. According to ClinicalTrials.gov’s definitions, phase 1 trials look at how the drug is processed in the body and at side effects seen with increasing doses; phase 2 at the effect in a specific condition and short-term side effects; phase 3 at the overall balance of benefit and harm after early evidence has been obtained; and phase 4 at the risks, benefits and best use of approved drugs. Early phase 1 is a very limited exploratory study with no treatment intent. Device and behavioral studies have no phase.

In an observational study researchers do not give participants a treatment; they collect information based on what participants already use or experience. In a clinical trial (interventional study), participants are assigned to an intervention.

Statuses: "Recruiting" means the trial is looking for participants now; "Not yet recruiting" means it has not started; "Enrolling by invitation" means participants are chosen from a predefined group; "Active, not recruiting" means participants are being followed but no new participants are being enrolled; and "Completed, results awaited" means the trial ended in the last two years but its results have not yet been posted on ClinicalTrials.gov.

A listing is not an endorsement. The U.S. government does not review or approve the safety and science of all studies listed on that site; the information is entered by the study’s sponsor or investigator, who is responsible for its accuracy.

If you are thinking of taking part in a trial, this is a personal and important decision. Before you take part, learn about the possible risks and benefits and talk over your options with your doctor. People who take part may or may not benefit themselves. Which specialist should you see?

Source: ClinicalTrials.gov data element definitions, Learn About Studies, Disclaimer.

How do we prepare the list?

• The list is pulled automatically every day from ClinicalTrials.gov, the registry run by the U.S. National Library of Medicine. It includes records that list cannabidiol (CBD) as an intervention and whose status is "recruiting", "not yet recruiting", "enrolling by invitation" or "active", plus records that ended in the last two years and whose results have not yet been posted.
• For trials that are not on ClinicalTrials.gov, the World Health Organization’s ICTRP platform is searched once a month; trials also registered on ClinicalTrials.gov (same number or same title) are not counted twice. The TİTCK Clinical Trials Portal in Turkey is also checked for CBD once a month.
• We record each trial’s changes in status, phase, number of participants, completion date and results, with dates; click a record number to see the trial’s history. When a trial leaves the list, its page stays, and its latest status (results posted, stopped…) is shown there.
• The abbreviation "CBD" is also used with other meanings in registries (for example, common bile duct). These records, and trials that exclude people who use CBD, are not included.
• Sorting into topics is automatic, based on the condition name in the record. A trial that covers more than one topic appears in each of them. Condition names are shown in English, as in the record.
• We do not give product, brand or sponsor names; for the full record, open the ClinicalTrials.gov link on the trial’s page.
• You can run the same search yourself: ongoing CBD trials on ClinicalTrials.gov. If you see a trial filed under the wrong topic, write to us.

Evidence map · For clinicians · Trusted sources

Sources