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Abortion, Spontaneous clinical trials

The registry lists 221 studies for Abortion, Spontaneous across more than 10 countries. 44 are recruiting or about to start. 123 of them are mainly about Abortion, Spontaneous (how this is decided). Per ClinicalTrials.gov, last updated 2026-11-10. Counting its 4 narrower conditions too, such as Abortion, Habitual: 388 studies, 80 open.

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Status

Completed
106
Status unknown
39
Recruiting
36
Terminated
17
Active, not recruiting
10
Not yet recruiting
7

Phase

Phase 2
22
Phase 3
19
Phase 4
14
Phase 1
2

Where

United States
44
France
27
Egypt
17
United Kingdom
17
China
15
Denmark
9

Who runs them

University of Pennsylvania (8) · Ain Shams University (5) · Assistance Publique - Hôpitaux de Paris (5) · University Hospital, Montpellier (4) · National Institute of Environmental Health Sciences (NIEHS) (4) · Reprogenetics (4) · Aalborg University Hospital (3) · Chinese University of Hong Kong (3)

What is being tested here

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

DrugOpenPhase 3All
Enoxaparin sodium223
Enoxaparin223
Misoprostol1417
Letrozole126
Mifepristone125
Progesterone115
Prednisolone102
Aspirin013
Immunoglobulins, Intravenous012
Immunoglobulin G012

Drug classes tested here Progestins 1 open

Coming up

2phase 3 studies under way
18studies 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 36 Abortion, Spontaneous studies recruiting now, 11 (31%) set no upper age limit and 25 (69%) stop at 75 or younger. 8 (22%) take children under 18. 30 (83%) are for women only and 0 (0%) for men only; 9 (25%) take healthy volunteers.

Recruiting studies that take each age, of 36
AgeWomenMen
104 (11%)0 (0%)
1834 (94%)6 (17%)
3035 (97%)6 (17%)
4035 (97%)6 (17%)
5017 (47%)3 (8%)
6511 (31%)2 (6%)
7511 (31%)2 (6%)
8511 (31%)2 (6%)

Across all 221 studies, recruiting or not: 65% stop at 75 or younger and 63% at 65; 17% take children; 90% are for women only and 0% for men only; 35% take healthy volunteers. From each study’s registry entry; the criteria on its page decide.

How long Abortion, Spontaneous studies take

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

Start to primary completionEvery sponsorIndustryNon-industry
Interventional, no phase27 mo12–40 · 45 studies—27 mo12–40 · 43 studies
Observational35 mo17–91 · 43 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.

Newly registered3

Studies

Recruiting first, then most recently updated. Showing 50 of 221. Browse all 221 → or search them.