Cannabis Freedom Index

Datasets Plant and market · not part of the score

Clinical trials of cannabis medicines

U.S. National Library of Medicine · actual starts recorded as of 26 October 2026

Trials are how cannabis medicines are tested on patients. ClinicalTrials.gov, run by the U.S. National Library of Medicine, registers studies around the world; this site counts those with a cannabis or cannabinoid treatment that have actually started, once for each country with a site.[1] The United States has the most, about 680, then Canada and France; 52 countries have at least one.

The register does not cover every trial in the world, and the current year is incomplete.[1] The trials chart follows the count since 2000. How patients get cannabis today is in each profile’s medical cannabis section; for research beyond patients, see research on cannabis and the research sections.

Published by
ClinicalTrials.gov — registered studies with a cannabis or cannabinoid intervention, API v2
Data
API v2 query
File here
clinicaltrials-cannabis.csv
See also
The interactive map · The chart · The files and their checksums
of 220 places covered
52
years in the file
2000–2026
the median country
0.4
places with several years
52

Clinical trials per million people, on the map

The stronger the blue, the more cannabis studies per million people. Countries with none are hatched. Select a country for its profile.

Under 0.20.2–11–33–1010 or moreNo eligible recorded actual start

ClinicalTrials.gov, actual starts as of 26 October 2026; current-year counts are incomplete. A study with sites in several countries counts in each. Not part of the score.

Highest · Clinical trials per million people

  1. Israel4.22026
  2. Canada3.02026
  3. United States2.02026

Lowest · Clinical trials per million people

  1. India0.02026
  2. China0.02026
  3. Indonesia0.02026

Country by country

Each place's latest figure, as on its profile. Select a heading to sort.

Further figures
ArgentinaSouth America1studies so far0 actual starts in 2026 · as of 2026–10–262026
AustraliaOceania39studies so far0 actual starts in 2026 · as of 2026–10–262026
AustriaEurope11studies so far1 actual starts in 2026 · as of 2026–10–262026
BelgiumEurope6studies so far1 actual starts in 2026 · as of 2026–10–262026
BrazilSouth America17studies so far2 actual starts in 2026 · as of 2026–10–262026
BulgariaEurope5studies so far0 actual starts in 2026 · as of 2026–10–262026
CanadaNorth America126studies so far5 actual starts in 2026 · as of 2026–10–262026
ChileSouth America1studies so far0 actual starts in 2026 · as of 2026–10–262026
ChinaAsia8studies so far0 actual starts in 2026 · as of 2026–10–262026
ColombiaSouth America2studies so far0 actual starts in 2026 · as of 2026–10–262026
CroatiaEurope1studies so far0 actual starts in 2026 · as of 2026–10–262026
CzechiaEurope14studies so far0 actual starts in 2026 · as of 2026–10–262026
DenmarkEurope11studies so far2 actual starts in 2026 · as of 2026–10–262026
EgyptAfrica6studies so far0 actual starts in 2026 · as of 2026–10–262026
FinlandEurope1studies so far0 actual starts in 2026 · as of 2026–10–262026
FranceEurope53studies so far3 actual starts in 2026 · as of 2026–10–262026
GermanyEurope41studies so far1 actual starts in 2026 · as of 2026–10–262026
GreeceEurope5studies so far1 actual starts in 2026 · as of 2026–10–262026
Hong KongAsia5studies so far0 actual starts in 2026 · as of 2026–10–262026
HungaryEurope6studies so far0 actual starts in 2026 · as of 2026–10–262026
IndiaAsia4studies so far0 actual starts in 2026 · as of 2026–10–262026
IndonesiaAsia2studies so far0 actual starts in 2026 · as of 2026–10–262026
IranAsia1studies so far0 actual starts in 2026 · as of 2026–10–262026
IrelandEurope1studies so far0 actual starts in 2026 · as of 2026–10–262026
IsraelAsia43studies so far2 actual starts in 2026 · as of 2026–10–262026
ItalyEurope23studies so far1 actual starts in 2026 · as of 2026–10–262026
JamaicaNorth America3studies so far0 actual starts in 2026 · as of 2026–10–262026
JapanAsia2studies so far0 actual starts in 2026 · as of 2026–10–262026
LatviaEurope2studies so far0 actual starts in 2026 · as of 2026–10–262026
LithuaniaEurope3studies so far0 actual starts in 2026 · as of 2026–10–262026
MexicoNorth America4studies so far0 actual starts in 2026 · as of 2026–10–262026
NetherlandsEurope21studies so far1 actual starts in 2026 · as of 2026–10–262026
New ZealandOceania6studies so far0 actual starts in 2026 · as of 2026–10–262026
NorwayEurope3studies so far0 actual starts in 2026 · as of 2026–10–262026
PakistanAsia3studies so far0 actual starts in 2026 · as of 2026–10–262026
PolandEurope30studies so far0 actual starts in 2026 · as of 2026–10–262026
Puerto RicoNorth America7studies so far0 actual starts in 2026 · as of 2026–10–262026
RomaniaEurope6studies so far0 actual starts in 2026 · as of 2026–10–262026
RussiaEurope3studies so far0 actual starts in 2026 · as of 2026–10–262026
Saudi ArabiaAsia1studies so far0 actual starts in 2026 · as of 2026–10–262026
SerbiaEurope2studies so far0 actual starts in 2026 · as of 2026–10–262026
SloveniaEurope2studies so far0 actual starts in 2026 · as of 2026–10–262026
South AfricaAfrica2studies so far0 actual starts in 2026 · as of 2026–10–262026
South KoreaAsia3studies so far0 actual starts in 2026 · as of 2026–10–262026
SpainEurope37studies so far1 actual starts in 2026 · as of 2026–10–262026
SwedenEurope5studies so far0 actual starts in 2026 · as of 2026–10–262026
SwitzerlandEurope12studies so far3 actual starts in 2026 · as of 2026–10–262026
TaiwanAsia3studies so far0 actual starts in 2026 · as of 2026–10–262026
ThailandAsia6studies so far0 actual starts in 2026 · as of 2026–10–262026
TürkiyeAsia6studies so far1 actual starts in 2026 · as of 2026–10–262026
United KingdomEurope48studies so far3 actual starts in 2026 · as of 2026–10–262026
United StatesNorth America682studies so far37 actual starts in 2026 · as of 2026–10–262026

What is counted, and how the file was made

Registered studies with a cannabis or cannabinoid intervention and a recorded actual start, counted once for each country with a site. Only starts explicitly marked ACTUAL on or before 26 October 2026 are included. Estimated or missing start types, not-yet-recruiting studies and withdrawn studies are excluded. ClinicalTrials.gov does not cover every trial worldwide; a study with sites in several countries counts in each. Current-year counts are incomplete.

Rebuilt on 26 October 2026 by scripts/fetch-open-data.py (trials), matching registry country names to country files. The query explicitly requests StartDateType, StartDate and OverallStatus. Complete dates are compared with the extraction date; month-only and year-only actual dates use their last possible day, conservatively. Duplicate study/country pairs count once. Zero-start years preserve cumulative totals. The as_of column records the snapshot date.

The file belongs to ClinicalTrials.gov and keeps its terms; cite the publisher when you use it.

References

  1. ClinicalTrials.gov — U.S. National Library of Medicinearchived
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