Pregnancy Complications clinical trials

The registry lists 411 studies for Pregnancy Complications across more than 10 countries. 113 are recruiting or about to start. 169 of them are mainly about Pregnancy Complications (how this is decided). Per ClinicalTrials.gov, last updated 2026-11-10. Counting its 50 narrower conditions too, such as Premature Birth: 7,544 studies, 1,590 open.

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Status

Completed: 192
Recruiting: 92
Status unknown: 53
Active, not recruiting: 32
Not yet recruiting: 17
Terminated: 11

Phase

Phase 3: 23
Phase 4: 19
Phase 2: 16
Phase 1: 5

Where

United States: 127
Turkey: 27
Canada: 24
France: 20
China: 18
Italy: 17

Who runs them

Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD) (8) · Stanford University (7) · Karolinska Institutet (6) · Beni-Suef University (6) · University of North Carolina, Chapel Hill (5) · Washington University School of Medicine (5) · University Hospital, Lille (4) · University of Pittsburgh (4)

What is being tested here

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

Drug	Open	Phase 3	All
Metformin	2	5	8
Aspirin	1	1	4
Certolizumab Pegol	1	0	1
Tinzaparin	1	0	1
Propofol	1	0	1
Estradiol	1	0	1
Dydrogesterone	1	0	1
Mifepristone	0	0	2
Betamethasone	0	2	2
Ganaxolone	0	0	2

Coming up

3phase 3 studies under way

38studies 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

Dec 2026Resources, Inspiration, Support and Empowerment (RISE) for Black Pregnant Women · Phase 3 · Cedars-Sinai Medical Center
Nov 2026ANXA5 M2 Haplotyping in IVF Patients and Embryos · Genomic Prediction Inc.
Nov 2026PregnAncy-Related Aortic DISsEction in China · DeltaHealth Hospital · Shanghai
Dec 2026Physical and Mental Health Among Sexual and Gender Minorities During Pregnancy, Birth and Postpartum · Linkoeping University
Dec 2026SCRIPT: Sickle Cell Risk in Pregnancy Tool · Mount Sinai Hospital, Canada
Dec 2026A Culturally Adapted Digital Intervention to Promote Maternal Care Utilization Using Multifaceted Approaches · Jiayao Xu
Dec 2026Pregnancy and Early Neurodevelopmental Outcomes Following In Utero Lyme Disease Exposure · Children's National Research Institute
Dec 2026Impact of Patient Selected Visual Art in the Hospital Room During Antepartum Admission on Hospital Satisfaction Scores and Patient Experience · Albany Medical College
Dec 2026Navigating Pregnancy and Parenthood With Lyme Disease · Children's National Research Institute
Dec 2026Feasibility and Acceptability of HCV Treatment in Pregnancy · Washington University School of Medicine

Who these studies take

Of the 92 Pregnancy Complications studies recruiting now, 44 (48%) set no upper age limit and 45 (49%) stop at 75 or younger. 22 (24%) take children under 18. 81 (88%) are for women only and 0 (0%) for men only; 35 (38%) take healthy volunteers.

Recruiting studies that take each age, of 92
Age	Women	Men
10	11 (12%)	4 (4%)
18	85 (92%)	9 (10%)
30	87 (95%)	9 (10%)
40	85 (92%)	9 (10%)
50	64 (70%)	7 (8%)
65	50 (54%)	6 (7%)
75	47 (51%)	6 (7%)
85	46 (50%)	6 (7%)

Across all 411 studies, recruiting or not: 56% stop at 75 or younger and 55% at 65; 27% take children; 89% are for women only and 0% for men only; 41% take healthy volunteers. From each study’s registry entry; the criteria on its page decide.

How long Pregnancy Complications studies take

Of 121 observational studies under Pregnancy Complications, half reached primary completion within 60 months of starting, counting those still running.

Start to primary completion	Every sponsor	Industry	Non-industry
Interventional, no phase	26 mo12–48 · 119 studies	—	26 mo12–48 · 119 studies
Observational	60 mo30–151 · 121 studies	—	60 mo30–201 · 113 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.

Studies

Recruiting first, then most recently updated. Showing 50 of 411. Browse all 411 → or search them.