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Obstetric Labor, Premature clinical trials

The registry lists 242 studies for Obstetric Labor, Premature across more than 10 countries. 36 are recruiting or about to start. 135 of them are mainly about Obstetric Labor, Premature (how this is decided). Per ClinicalTrials.gov, last updated 2026-11-10. Counting its narrower condition Premature Birth too: 2,692 studies, 516 open.

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Status

Completed
124
Status unknown
48
Recruiting
24
Terminated
18
Not yet recruiting
11
Withdrawn
11

Phase

Phase 4
27
Phase 2
23
Phase 3
20
Phase 1
12
Early Phase 1
3

Where

United States
75
Egypt
31
Turkey
14
Israel
13
Spain
12
France
12

Who runs them

Assiut University (14) · Ain Shams University (7) · Ain Shams Maternity Hospital (6) · GlaxoSmithKline (5) · Stanford University (5) · University of California, San Francisco (4) · Indiana University (4) · University of Pennsylvania (4)

What is being tested here

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

DrugOpenPhase 3All
Azithromycin313
Amoxicillin202
Caffeine citrate202
Caffeine202
Progesterone1221
Indomethacin1210
Aspirin101
Erythromycin101
Metformin111
Vitamin D101

Drug classes tested here NSAIDs 2 open · Progestins 1 open

Coming up

4phase 3 studies under way
15studies finish main data collection within a year

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

Who these studies take

Of the 24 Obstetric Labor, Premature studies recruiting now, 14 (58%) set no upper age limit and 9 (38%) stop at 75 or younger. 5 (21%) take children under 18. 20 (83%) are for women only and 0 (0%) for men only; 8 (33%) take healthy volunteers.

Recruiting studies that take each age, of 24
AgeWomenMen
102 (8%)0 (0%)
1820 (83%)2 (8%)
3022 (92%)2 (8%)
4022 (92%)2 (8%)
5019 (79%)1 (4%)
6516 (67%)1 (4%)
7516 (67%)1 (4%)
8514 (58%)1 (4%)

Across all 242 studies, recruiting or not: 60% stop at 75 or younger and 59% at 65; 28% take children; 90% are for women only and 0% for men only; 43% take healthy volunteers. From each study’s registry entry; the criteria on its page decide.

How long Obstetric Labor, Premature studies take

Of 45 interventional studies with no phase under Obstetric Labor, Premature, half reached primary completion within 27 months of starting, counting those still running.

Start to primary completionEvery sponsorIndustryNon-industry
Interventional, no phase27 mo12–49 · 45 studies—27 mo12–47 · 44 studies
Observational29 mo14–48 · 39 studies—30 mo19–48 · 33 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.

Started recruiting1

Studies

Recruiting first, then most recently updated. Showing 50 of 242. Browse all 242 → or search them.