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Cigarette Smoking clinical trials

The registry lists 475 studies for Cigarette Smoking across more than 10 countries. 86 are recruiting or about to start. 300 of them are mainly about Cigarette Smoking (how this is decided). Per ClinicalTrials.gov, last updated 2026-11-09.

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Example · made-up studies

Breast cancer · Recruiting: 2 came in, 3 changed

What changed in your saved searches, Oct 31 – Nov 6:

A study of drug A after surgery for early breast cancer

Came in · now Recruiting

Drug B with hormone therapy in advanced breast cancer

Changed

· Sites: 4 added, including Seoul and Busan

· Enrollment: 300 → 450 participants

Exercise during chemotherapy

Now Active, not recruiting

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Status

Completed
322
Recruiting
61
Not yet recruiting
23
Status unknown
22
Terminated
21
Active, not recruiting
13

Phase

Phase 2
60
Phase 1
29
Phase 4
26
Phase 3
13
Early Phase 1
11

Where

United States
371
Turkey
13
Canada
8
China
6
Italy
5
United Kingdom
5

Who runs them

Duke University (27) · Medical University of South Carolina (15) · Virginia Polytechnic Institute and State University (15) · Ohio State University Comprehensive Cancer Center (14) · Yale University (13) · University of California, San Francisco (12) · Abramson Cancer Center at Penn Medicine (10) · University of Oklahoma (10)

What is being tested here

Drugs under test in Cigarette Smoking studies, those with the most open studies first. Medicines only given beside them are not counted. How drugs are counted

DrugOpenPhase 3All
Nicotine3420
Semaglutide203
Varenicline1320
Nicotine Patch1210
Nicotine Lozenge103
Propranolol102
Nicotine Chewing Gum101
Trichlorosucrose101
Tetrahydrocannabivarin101
NOS F-18101

Drug classes tested here GLP-1 receptor agonists 2 open

Coming up

4phase 3 studies under way
40studies finish main data collection within a year2 of them phase 3

Studies recruiting or running, from their records. “Main data collection” ends at the primary completion date, the sponsor’s own estimate, which often moves.

The 10 nearest, phase 3 first

Who these studies take

Of the 61 Cigarette Smoking studies recruiting now, 38 (62%) set no upper age limit and 17 (28%) stop at 75 or younger. 1 (2%) take children under 18. 4 (7%) are for women only and 2 (3%) for men only; 32 (52%) take healthy volunteers.

Recruiting studies that take each age, of 61
AgeWomenMen
100 (0%)0 (0%)
1825 (41%)22 (36%)
3053 (87%)51 (84%)
4052 (85%)51 (84%)
5053 (87%)52 (85%)
6550 (82%)48 (79%)
7545 (74%)43 (70%)
8541 (67%)39 (64%)

Across all 475 studies, recruiting or not: 51% stop at 75 or younger and 45% at 65; 4% take children; 4% are for women only and 3% for men only; 57% take healthy volunteers. From each study’s registry entry; the criteria on its page decide.

How long Cigarette Smoking studies take

Of 27 phase 2 interventional studies under Cigarette Smoking, half reached primary completion within 33 months of starting, counting those still running.

Start to primary completionEvery sponsorIndustryNon-industry
Phase 116 mo8–29 · 19 studies——
Phase 233 mo16–43 · 27 studies——
Interventional, no phase20 mo9–32 · 191 studies—20 mo9–33 · 184 studies
Observational24 mo11–45 · 24 studies——

Each figure is the month by which half the studies had reached primary completion, with the range in which the middle half did. Studies still running count until their last registry update; studies that stopped early are left out. Phase 1 includes early phase 1; observational means prospective or not stated, as retrospective and cross-sectional studies date a window of data rather than a study. How these figures are worked out

What changed recently

From the registry's own updates since Oct 13, 2026.

Started recruiting1

Newly registered6

Show 1 more

Studies

Recruiting first, then most recently updated. Showing 50 of 475. Browse all 475 → or search them.