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ClinicalTrials.gov 77 recruiting now full pipeline #54 of 28,707 conditions

Pregnancy: full-pipeline trial registry

77 of 194 indexed Pregnancy trials are currently recruiting.

Corpus placement: #54 of 28,707 conditions by registered trial count.

194 US clinical trials · 77 currently recruiting · #54 of 28,707 conditions by registered trial count

Pregnancy: 194 US clinical trials tracked, 77 recruiting.

Pregnancy is the subject of 194 registered US clinical trials on ClinicalTrials.gov, 77 of them currently open to new participants. 11 are in Phase 3-4 (later-stage) and 12 in Phase 1-2 (earlier-stage). The most active sponsor is Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD), running 8 of these trials.

Enrollment posture brief

Registry condition pregnancy

OPEN 77 | RECR 40% | LATE 11 | EARLY 12 | RANK #54 | SPON 8

Nearest open-share peer: Type 1 Diabetes (40% recruiting · 199 trials)

Advanced Solid Tumor70%Solid Tumor52.8%Pregnancy (this)40%Myelodysplastic Syndromes37.8%Overweight25.3%
Open-enrollment share among volume-matched conditions near Pregnancy

Pregnancy lists 77 open slots (40% of 194 indexed trials). Peers are matched on registered volume, not therapeutic-area browse lists. How peer matching works →

Key findings

What ClinicalTrials.gov does not surface for Pregnancy on its own pages , computed from the registry mirror as of 2026-08-08. Each line carries its own denominator so it can be quoted as it stands.

  1. Pregnancy is recruiting above its size-band peers.

    77 of 194 indexed trials (39.7%) are open to enrollment, against a 37.1% average across 139 conditions with 100+ trials. The peer set uses the same ClinicalTrials.gov-derived counts as this page.

  2. Sponsorship of Pregnancy trials is spread across many organizations.

    Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD) accounts for 8 of 194 trials (4.1%). 137 distinct sponsors appear on at least one study for this condition label.

  3. Typical Pregnancy enrolment sits around 150 participants.

    Median target enrolment is 150 among the 192 trials that report a genuine target (sentinel values excluded). 72 of those (37.5%) plan for fewer than 100 participants.

  4. Pregnancy splits between interventional and observational designs.

    115 interventional and 79 observational studies make up this index (59.3% interventional). Study type is sponsor-reported on ClinicalTrials.gov.

Phase 18Phase 24Phase 39Phase 42

Open and recent trials

194 total, page 4 of 4

COMPLETED NA 121 participants

Vaccine Acceptance in Pregnant Minority Women

Emory University

NCT01740310

COMPLETED 118 participants

Oral Glucose Tolerance Testing After Gestational Diabetes

MetroHealth Medical Center

NCT02082301

COMPLETED 102 participants

Iron Parameters in Non-anemic First Trimester Gravidas

Auerbach Hematology Oncology Associates P C

NCT03670537

COMPLETED 98 participants

Perinatal Opioid Use

Medical University of South Carolina

NCT04049032

COMPLETED 93 participants

Meningococcal Quadrivalent CRM-197 Conjugate Vaccine Pregnancy Registry

GlaxoSmithKline

NCT02223637

COMPLETED 91 participants

The Physical Effects of Pain Catastrophizing in Labor

Oregon Health and Science University

NCT01012466

COMPLETED 87 participants

Sanofi Pasteur Quadrivalent Intradermal Influenza Vaccine Pregnancy Registry

Sanofi Pasteur, a Sanofi Company

NCT02554409

COMPLETED NA 84 participants

Diabetes Group Prenatal Care

Washington University School of Medicine

NCT02444325

COMPLETED NA 76 participants

Local Anesthesia and Pain Perception During an Amniocentesis

University of Oklahoma

NCT00583011

COMPLETED Phase 2 74 participants

Intravaneous Iron(1000 mg Low Molecular Weight Iron Dextran Over 60 Minutes) for Pregnant Women

Auerbach Hematology Oncology Associates P C

NCT02038023

COMPLETED Phase 3 72 participants

Effects of Dairy Foods on Adolescent Pregnant Mothers and Their Newborns

University of Utah

NCT00320125

COMPLETED NA 66 participants

Tobacco Use in Pregnancy Intervention for Cessation

Kristin Ashford

NCT03442530

COMPLETED Phase 2 66 participants

Healthy4Baby: Preventing Postpartum Weight Retention Among Low-Income, Black Women

Temple University

NCT01530776

COMPLETED NA 66 participants

Exercise in Pregnancy for Reduction of Blood Pressure in Obese Patients

Milton S. Hershey Medical Center

NCT01261884

COMPLETED Phase 3 65 participants

Comparison of Foley Balloon With or Without Traction for the Cervical Ripening

St. Luke's Hospital, Pennsylvania

NCT01063244

COMPLETED NA 65 participants

Intergenerational Strengths-Based Program for American Indian Girls as They Transition to Adulthood

Johns Hopkins Bloomberg School of Public Health

NCT03900312

COMPLETED 62 participants

Indomethacin PK and PD Therapy in Pregnancy

The University of Texas Medical Branch, Galveston

NCT02451228

COMPLETED Phase 2 61 participants

Study of Pharmacology of 17-OHPC in Pregnancy

University of Pittsburgh

NCT00409825

COMPLETED NA 61 participants

Measurement of Hemodynamic Variables Under Spinal Anesthesia With Varied Positioning

The University of Texas Medical Branch, Galveston

NCT02883075

COMPLETED NA 60 participants

Chlorhexidine Gluconate Versus Povidone Iodine at Cesarean Delivery: a Randomized Controlled Trial

University of Southern California

NCT01975805

COMPLETED NA 55 participants

Cardiovascular Health in Postpartum Women Diagnosed With Excessive Gestational Weight Gain

Stanford University

NCT02142452

COMPLETED NA 55 participants

Opioid Dependence Treatment Therapies in Pregnancy

University of Pittsburgh

NCT03098407

COMPLETED NA 50 participants

The Effects of Music Therapy on Women's Anxiety Before and During Cesarean Delivery

Wake Forest University

NCT01049477

COMPLETED NA 50 participants

Piloting JUN_Pregnancy Mobile Medical App

The University of Texas Health Science Center at San Antonio

NCT06636110

COMPLETED NA 46 participants

CO-OP Trial: Community-based Outreach on Obesity in Pregnancy

University of Missouri, Kansas City

NCT01841424

COMPLETED 39 participants

Biomarker Feedback to Motivate Tobacco Cessation in Pregnant ALaska Native Women: Phase 2

Mayo Clinic

NCT02018640

COMPLETED 38 participants

Evaluation of Barriers to Postpartum Care in HIV Infected Women

The University of Texas Health Science Center, Houston

NCT01853917

COMPLETED 35 participants

Assessment of Third Trimester Post-void Residual and Validation of Bladder Scanner in Pregnancy and Post-partum

West Virginia University

NCT00782730

COMPLETED 30 participants

Periodontal and Periapical Inflammation and Pregnancy

Roger Johnson

NCT00490165

COMPLETED Phase 1 30 participants

Pharmacokinetic Study of Makena® (Hydroxyprogesterone Caproate Injection, 250 mg/mL) and Its Metabolites in Blood

Lumara Health

NCT01899846

COMPLETED NA 26 participants

Soft Tissue Mobilization for Lumbopelvic Pain in the Third Trimester of Pregnancy

Texas Tech University Health Sciences Center

NCT03433404

COMPLETED Phase 1 26 participants

A Study to Evaluate the Safety and Tolerance of Stavudine (d4T) in Combination With Lamivudine (3TC) in HIV-Positive Pregnant Women and Their Infants

National Institute of Allergy and Infectious Diseases (NIAID)

NCT00000878

COMPLETED Early Phase 1 25 participants

Inpatient Adolescent Contraception

Children's Mercy Hospital Kansas City

NCT04423068

COMPLETED NA 25 participants

EnBrace HR for Depression Treatment and Prevention in Women Trying to Conceive and Early Pregnancy

Massachusetts General Hospital

NCT02676882

COMPLETED NA 24 participants

Massage To Improve Uterine Artery Blood Flow

Miguel Diego

NCT02203734

COMPLETED Phase 1 24 participants

A Study to Evaluate the Safety and Tolerance of Combination Anti-HIV Drug Therapy (Indinavir, Lamivudine, and Zidovudine) in HIV-Positive Pregnant Women and Their Infants

National Institute of Allergy and Infectious Diseases (NIAID)

NCT00000944

COMPLETED 18 participants

An Observational Study of the Use and Safety of Raptiva During Pregnancy (FOLLOW)

Genentech

NCT00097240

COMPLETED NA 15 participants

Comparison of Staples Versus Prolene Suture for Skin Closure at Cesarean Delivery

Stanford University

NCT01509950

COMPLETED 15 participants

Evaluation of Pre-dose and Post-dose Anti-factor Xa Levels With Enoxaparin Use During Pregnancy

University of California, Irvine

NCT00319176

COMPLETED Phase 1 12 participants

Study to Evaluate Suppression of Ovulation and Pharmacokinetics of Medroxyprogesterone Acetate Following Administration of TV-46046 in Women With Ovulatory Cycle

Teva Branded Pharmaceutical Products R&D

NCT02817464

COMPLETED NA 8 participants

Evaluation of the Effectiveness of Pharmacists in Implementing the SCRIPT Protocol

Providence Medical Research Center

NCT02433860

COMPLETED 2 participants

Maternal Inborn Errors of Metabolism in Pregnancy: A Pregnancy Registry Protocol

National Human Genome Research Institute (NHGRI)

NCT02322177

COMPLETED

Studying Fetal Breathing Patterns

Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)

NCT00066976

COMPLETED

Maternal Glucose Measurement in Pregnancy Using a Continuous Ambulatory Subcutaneous Monitor

National Center for Research Resources (NCRR)

NCT00011622

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Phase Distribution

PhaseTrial count
Phase 1 8
Phase 2 4
Phase 3 9
Phase 4 2

Named interventions

Most-linked intervention names on Pregnancy records (sponsor-reported on ClinicalTrials.gov). Counts are trial links, not unique products.

Zidovudine Drug
4 trials
medical abortion Drug
2 trials
Group prenatal care Behavioral
2 trials
Lamivudine Drug
2 trials
Misoprostol Drug
2 trials
No Intervention Other
2 trials
Hydroxyprogesterone caproate 250 mg/ml Drug
1 trials
Control Curricula Behavioral
1 trials

US sites by state

Facility locations filed on Pregnancy trials. A trial with sites in several states counts in each.

California 26 trials
New York 25 trials
Illinois 19 trials
Maryland 18 trials
Texas 17 trials
Pennsylvania 17 trials
Massachusetts 17 trials
North Carolina 16 trials

Source: ClinicalTrials.gov, National Library of Medicine. Data is informational only.

What to do with this Pregnancy page

194 registered trials, 77 currently recruiting, is a starting point for a conversation, not a diagnosis or a recommendation.

Trial and recruiting counts reflect ClinicalTrials.gov registry status as of the data vintage above; individual trial eligibility and enrollment status can change.

Every figure on PlainTrial is rendered directly from the ClinicalTrials.gov registry, no number is typed in by an editor. This Pregnancy condition card totals 194 registered trials; most-linked intervention Zidovudine; top US site state California. See our editorial standards & corrections policy, the methodology behind these numbers, the data changelog, or report a data error.