ClinicalTrials.gg

Ulcer clinical trials

The registry lists 359 studies for Ulcer across more than 10 countries. 62 are recruiting or about to start. 121 of them are mainly about Ulcer (how this is decided). Per ClinicalTrials.gov, last updated 2026-11-06.

Get an email when these change. Save the Ulcer studies recruiting or about to start — once a week, free: studies that open, close, add sites or post results.

Watch these studies
See an example email

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

One email a week for all your saved searches. Stop any time.

Status

Completed
186
Status unknown
46
Terminated
41
Recruiting
39
Not yet recruiting
18
Withdrawn
12

Phase

Phase 2
70
Phase 3
52
Phase 1
31
Phase 4
22
Early Phase 1
3

Where

United States
141
Canada
22
Egypt
22
China
21
United Kingdom
18
France
17

What is being tested here

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

Drug classes tested here Proton pump inhibitors (PPIs) 7 · NSAIDs 5 · Corticosteroids 3

Coming up

29studies finish main data collection within a year1 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 39 Ulcer studies recruiting now, 29 (74%) set no upper age limit and 4 (10%) stop at 75 or younger. 4 (10%) take children under 18. 0 (0%) are for women only and 0 (0%) for men only; 5 (13%) take healthy volunteers.

Recruiting studies that take each age, of 39
AgeWomenMen
102 (5%)2 (5%)
1834 (87%)34 (87%)
3037 (95%)37 (95%)
4037 (95%)37 (95%)
5037 (95%)37 (95%)
6537 (95%)37 (95%)
7536 (92%)36 (92%)
8533 (85%)33 (85%)

Across all 359 studies, recruiting or not: 17% stop at 75 or younger and 9% at 65; 9% take children; 1% are for women only and 1% for men only; 15% take healthy volunteers. From each study’s registry entry; the criteria on its page decide.

How long Ulcer studies take

Of 14 phase 3 interventional studies under Ulcer, half reached primary completion within 39 months of starting, counting those still running.

Start to primary completionEvery sponsorIndustryNon-industry
Phase 339 mo22–58 · 14 studies——
Interventional, no phase25 mo10–43 · 68 studies—25 mo8–64 · 43 studies
Observational33 mo14–78 · 22 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 11, 2026.

Studies

Recruiting first, then most recently updated. Showing 50 of 359. Browse all 359 → or search them.