Pregnancy, High-Risk

19

Review clinical trials related to Pregnancy, High-Risk. Use filters to narrow results by trial status, phase, treatment, biological sex and sponsor.

Condition / disease
Location
Status: Recruiting

DECIDE: A Comparative Effectiveness Trial of Metformin Versus Insulin for the Treatment of Gestational Diabetes

This is a non-inferiority patient-centered and pragmatic comparative-effectiveness pregnancy randomized controlled trial (RCT) with postpartum maternal and child follow-up through 2 years of 1,572 individuals with gestational diabetes mellitus (GDM) randomized to oral metformin versus injectable insulin. This study will determine if metformin is not inferior to insulin in reducing adverse pregnancy outcomes, is comparably safe for exposed individuals and children, and if patient-reported factors, including facilitators of and barriers to use, differ between metformin and insulin. A total of 1,572 pregnant individuals with GDM who need pharmacotherapy will be recruited at 20 U.S. sites using consistent treatment criteria to metformin versus insulin. Participants and their children will be followed through delivery to two years postpartum.

Participants needed: 1,572
Trial details
Phase: Phase 4Age: 18+Biological sex: FemaleType: InterventionalSponsor: Ohio State UniversityUpdated: Jun 25, 2026Locations: 24
Eligibility criteria

Singleton gestation. Twin reduction to singleton, either spontaneously or therap... [+5]

Renal disease (serum creatinine >1.3 mg/dL) due to the potential impact of metfo... [+10]

Status: Recruiting

Successfully Achieving and Maintaining Euglycemia During Pregnancy for Type 2 Diabetes Through Technology and Coaching

The ACHIEVE RCT will measure the effect of the intervention (mHealth app with CGM, provider dashboard, and care team coaching) compared to current standard care (prenatal visits, self-monitored blood glucose, and certified diabetes care and education specialist) on achieving glycemic control (hemoglobin A1c \<6.5% in the third trimester). We hypothesize a 25% absolute increase in the proportion of participants in the intervention group who will meet the target hemoglobin A1c \<6.5% in the third trimester compared to the standard care group

Participants needed: 124
Trial details
Age: 18+Biological sex: FemaleType: InterventionalSponsor: Ohio State UniversityUpdated: Jun 29, 2026Locations: 1
Eligibility criteria

pregnant individuals age ≥18 years; [+8]

Status: Recruiting

Intensive Glycemic Targets in Overweight and Obese Women With Gestational Diabetes

This is a multicenter randomized clinical trial of 828 overweight and obese individuals with gestational diabetes designed to compare standard to intensive glycemic targets.

Participants needed: 828
Trial details
Age: 18-45Biological sex: FemaleType: InterventionalSponsor: Indiana UniversityUpdated: Jun 24, 2026Locations: 5
Eligibility criteria

Pregnant women between the ages of 18-45 [+3]

Inability or unwillingness to provide informed consent [+5]

Status: Not yet recruiting

NOURISH - A Healthcare-community Partnership to Improve Nutrition for Optimal Glycemic Control and Pregnancy Outcomes With Pregestational Diabetes

Nutrition insecurity (inclusive of food insecurity + poor diet quality) is a fundamental social need that must be addressed to improve treatment and health outcomes for high-risk pregnant women with pregestational type 1 and 2 diabetes, poor glucose control, and food insecurity for whom a healthy diet is critical. The NOURISH trial will provide evidence of a scalable, integrated, and theory-based healthcare-community partnership that includes weekly nutritious produce home delivery, monthly clinic-integrated diabetes, nutrition, and culinary group education, and continuous social needs assessment and support to improve glucose control and pregnancy outcomes. Given the increasing burden and devasting consequences of nutrition insecurity among high-risk pregnant women with diabetes and unmet social needs, NOURISH-an innovative and sustainable healthcare-community partnership-will have significant public health benefit.

Participants needed: 174
Trial details
Age: 18+Biological sex: FemaleType: InterventionalSponsor: Ohio State UniversityUpdated: Jun 22, 2026Locations: 1
Eligibility criteria

Pregnant with singleton or twin pregnancy [+8]

Involuntarily confined or detained. [+1]

Status: Recruiting

PRISMA Maternal and Newborn Health Study

Access to quality antenatal care (ANC) and postnatal care (PNC), including maternal, newborn, and infant services, is integral to reducing adverse pregnancy-related health outcomes and promoting positive birth experiences. The World Health Organization (WHO) recommends a total of eight ANC visits for pregnant women. However, the ANC coverage rate remains considerably lower among more vulnerable populations, and the quality of care that women receive is inconsistent, often poor, and frequently fails to detect risks in a timely fashion or adequately prepare women for the birth process. While rates of facility-based delivery are on the rise worldwide, disparities persist and the quality of care across facilities remains uneven. Even less information is available on PNC, where services beyond routine immunizations may not be widely available, especially in resource-poor regions. Additionally, limited evidence exists on innovative service delivery approaches and how to effectively scale tested maternal and newborn health (MNH) interventions. This coupled with the fragmented datasets from smaller studies limit our ability to advocate for policy change. The Pregnancy Risk Stratification Innovation and Measurement Alliance (PRiSMA) is implementing a harmonized open cohort study that seeks to evaluate pregnancy risk factors and their associations with adverse pregnancy outcomes, including stillbirth, neonatal mortality and morbidity, and maternal mortality and severe morbidity. The goals are to develop a harmonized data set to improve understanding of pregnancy risk factors, vulnerabilities, and morbidity and mortality and to estimate the burden of these risk factors and outcomes in LMICs. Ultimately, these data will inform development of innovative strategies to optimize pregnancy outcomes for mothers and their newborns.

Participants needed: 267,897
Trial details
Age: 15+Biological sex: FemaleType: ObservationalSponsor: George Washington UniversityUpdated: Jun 11, 2026Locations: 5
Eligibility criteria

Lives within the study catchment area; [+7]

Nonviable (e.g. ectopic or molar) pregnancy; [+1]

Status: Recruiting

Permissive Versus Strict Intrapartum Glucose Management in Type 1 Diabetes (PRISM-T1D)

PRISM-TID is a single center non-inferiority randomized controlled trial of permissive intrapartum glucose management (intervention) versus strict intrapartum glucose management (standard of care) among pregnant individuals with type 1 diabetes (T1D) using hybrid closed loop therapy (HCL) who are admitted for labor management. Participants will be randomized in a 1:1 fashion to one of two intrapartum glycemic control options: permissive (70-140 mg/dL) or strict (70-110 mg/dL). The primary aim of this trial it to demonstrate that permissive intrapartum glucose management is not associated with an increased risk of neonatal dysglycemia compared with strict intrapartum glucose management.

Participants needed: 44
Trial details
Phase: Phase 4Age: 18+Biological sex: FemaleType: InterventionalSponsor: Ohio State UniversityUpdated: Apr 29, 2026Locations: 1
Eligibility criteria

Pregnant individuals [+7]

Scheduled cesarean delivery [+6]

Status: Not yet recruiting

MOCHA: Embedded Inpatient Mental Health Care for High-Risk Perinatal Patients

Pregnant and postpartum patients hospitalized for medical complications experience high rates of depression, anxiety, and trauma-related symptoms, yet access to timely psychiatric care during obstetric hospitalization is limited. Project MOCHA integrates early mental health screening, trauma-informed psychotherapy, and structured follow-up into routine inpatient maternity care for individuals at elevated clinical risk. This single-arm implementation study examines the feasibility, acceptability, and fidelity of delivering a Collaborative Mental Health Care Program within a high-risk obstetric inpatient setting. The program includes brief inpatient psychotherapy, symptom monitoring, and post-discharge follow-up over three months. Preliminary changes in depression, anxiety, attention-deficit hyperactivity disorder, and posttraumatic stress symptoms will be assessed to inform future effectiveness trials and broader health system integration.

Participants needed: 50
Trial details
Age: 18-100Biological sex: FemaleType: ObservationalSponsor: Indiana UniversityUpdated: Apr 22, 2026Locations: 1
Eligibility criteria

18 years old or older [+4]

Under 18 years old [+3]

Status: Recruiting

Early Detection of Gestational Diabetes Mellitus in Pregnancy

The purpose of this study is to develop an implementation protocol and test the feasibility and acceptability of a first trimester screening protocol for the early detection of gestational diabetes mellitus (GDM).

Participants needed: 80
Trial details
Age: 18+Biological sex: FemaleType: InterventionalSponsor: University of Massachusetts, WorcesterUpdated: Apr 6, 2026Locations: 1
Eligibility criteria

1) age greater than or equal to 18 years old, [+5]

1) known diagnosis of pre-existing pregestational diabetes, [+3]

Status: Recruiting

Improvement of PPROM Management With Prophylactic Antimicrobial Therapy (iPROMPT)

To conduct an unblinded pragmatic randomized controlled trial (pRCT) "Improvement of PPROM Management with Prophylactic Antimicrobial Therapy (iPROMPT)" of a seven-day course of ceftriaxone, clarithromycin, and metronidazole versus the current standard of care of a seven-day course of ampicillin/amoxicillin and azithromycin or erythromycin to prolong pregnancy and decrease adverse perinatal outcomes among hospitalized pregnant individuals undergoing expectant management of PPROM \<34 weeks.

Participants needed: 56
Trial details
Phase: Phase 4Age: 18+Biological sex: FemaleType: InterventionalSponsor: Ohio State UniversityUpdated: Jan 27, 2026Locations: 2
Eligibility criteria

Admitted to the inpatient unit for expectant management of PPROM until delivery [+2]

Having received more than one dose of any prophylactic antibiotic [+3]

Status: Recruiting

A Randomized Controlled Trial of Diabetes Screening Immediately Postpartum (DIP) and Follow Up PP CARE

DIP : To conduct a pragmatic, non-blinded randomized controlled trial (pRCT) of immediate in-patient postpartum OGTT prior to delivery discharge (intervention) versus 4-12 week outpatient postpartum OGTT (current standard care) to improve the frequency of post-partum diabetes screening among individuals with a pregnancy complicated by GDM. Follow up PP CARE: To engage with individuals with a history of GDM through a patient-centered mixed-methods survey and qualitative assessment to evaluate the barriers to and facilitators of Cardiovascular health (CVH) counseling and risk-reduction postpartum at the patient and healthcare system levels inclusive of Social determinants of health (SDOH) and structural factors, as well as patient preferences and perspectives on CVH and wellness interventions

Participants needed: 104
Trial details
Age: 18+Biological sex: FemaleType: InterventionalSponsor: Ohio State UniversityUpdated: Nov 24, 2025Locations: 1
Eligibility criteria

Immediately postpartum individuals during their delivery hospital admission [+5]

Individuals who cannot tolerate a 2-hour oral glucose tolerance test (OGTT) (i.e... [+1]

Status: Recruiting

Anticoagulation Profile in Pregnant Women Treated With Three Times a Day of Low Molecular Weight Heparin (LMWH)

Pregnancy is associated with a increased risk of developing blood clots. There is nearly a 5 times greater risk of developing a blood clot in pregnancy. Lovenox is a medication that helps to prevent the body from developing clots. It is safe to use in pregnancy. Previous studies have demonstrated that despite recommendation of Lovenox, to prevent blood clots, the majority of patient's (70 to 90%) did not receive adequate levels of Lovenox at times throughout the day, which likely increases the risk of developing clots. The increase in blood volume and increase in kidney function that occurs in pregnancy may contribute to the inadequate levels. Currently the recommendation for pregnant and nonpregnant patients requiring Lovenox, is to calculate the daily dose of Lovenox and split the dose, giving half in the morning and the other half in the evening. This research study proposes that due to changes in the body during pregnancy that the daily Lovenox dosing be split into three times a day to achieve more consistent levels of Lovenox than twice a day in pregnant women.

Participants needed: 12
Trial details
Phase: Phase 4Age: 18+Biological sex: FemaleType: InterventionalSponsor: University of California, IrvineUpdated: Oct 29, 2025Locations: 1
Eligibility criteria

Nulliparous or multiparous women with single intrauterine pregnancies who requir... [+1]

Women with multiples. [+3]

Status: Recruiting

Transdermal Patch for BupRenorphine Induction DurinG PrEgnancy (Patch BRIDGE)

The goal of this clinical trial is to compare buprenorphine patch for induction (starting) of buprenorphine in pregnant patients with opioid use disorder. The main questions it aims to answer are: 1. Is there a buprenorphine induction method that results in the least moderate-to-severe opioid withdrawal symptoms in pregnant patients with opioid use disorder? 2. Is there a buprenorphine induction method that results in a higher treatment success rate? Under normal circumstances, patients who are planning to start sublingual (under the tongue) buprenorphine for opioid use disorder must first go into withdrawal to start the medication safely. Study participants will be given a buprenorphine patch during the required withdrawal period before starting sublingual treatment, and be surveyed daily by phone to assess their withdrawal symptoms. They will also be followed at prenatal appointments to evaluate treatment success based on urine drug screen results. Researchers will compare patients receiving no buprenorphine patch according to the current standard care protocol.

Participants needed: 40
Trial details
Phase: Phase 3Age: 18-110Biological sex: FemaleType: InterventionalSponsor: Washington University School of MedicineUpdated: Oct 14, 2025Locations: 1
Eligibility criteria

Viable pregnancy [+4]

Patients already receiving treatment for opioid use disorder [+4]

Status: Not yet recruiting

Relationship of DV Doppler Parameters to Perinatal Outcomes in IUGR vs Non-IUGR

This observational study investigates whether blood flow in the ductus venosus, a small fetal vein measured by Doppler ultrasound, is related to pregnancy outcomes. A total of pregnant women with and without intrauterine growth restriction (IUGR) will be examined between 24 and 37 weeks of gestation. Ductus venosus Doppler parameters will be recorded and compared with perinatal outcomes such as Apgar scores, neonatal intensive care unit admission, and perinatal mortality. The aim of this research is to improve the early identification of high-risk pregnancies and to support better monitoring and management strategies for fetal health.

Participants needed: 160
Trial details
Age: 18-45Biological sex: FemaleType: ObservationalSponsor: Izmir City HospitalUpdated: Oct 2, 2025Locations: 2
Eligibility criteria

Singleton pregnancies between 24 and 37 weeks of gestation Singleton pregnancies...

Status: Recruiting

Continuous Glucose Monitor Use in Pregnancy

The purpose of this study is to perform a randomized controlled trial among 180 pregnant women with type 2 diabetes mellitus (T2DM) comparing continuous glucose monitor (CGM) use to the standard of care of multiple daily fingerstick glucose monitoring and its impact on large for gestational age infants, maternal glycemic control, patient satisfaction, and additional adverse perinatal outcomes.

Participants needed: 180
Trial details
Age: 18+Biological sex: FemaleType: InterventionalSponsor: University of Massachusetts, WorcesterUpdated: Oct 1, 2025Locations: 1
Eligibility criteria

1) age greater than or equal to 18 years old [+4]

1) known diagnosis of type 1 diabetes or gestational diabetes [+3]

Status: Recruiting

Relugolix Pregnancy Registry: An Observational Study of the Safety of Relugolix-Containing Therapy Exposure in Pregnant Women and Their Offspring

The Relugolix Pregnancy Registry is a prospective, observational cohort study designed to evaluate the association between relugolix-containing therapy exposure during pregnancy and subsequent maternal, fetal, and infant outcomes. Data will be collected from enrolled pregnant women and the healthcare providers (HCPs) involved in their care or the care of their infants, if applicable.

Participants needed: 728
Trial details
Age: 0+Biological sex: FemaleType: ObservationalSponsor: Sumitomo Pharma Switzerland GmbHUpdated: Aug 19, 2025Locations: 1Duration: 12 Months
Eligibility criteria

Woman of any age [+5]

Occurrence of pregnancy outcome prior to first contact with the registry coordin... [+2]

Status: Recruiting

Patients Pregnant Women With or Without Primary Antiphospholipid Antibody Syndrome

The purpose of the study is to evaluate the ability of placental angiogenesis markers to predict the risk of PE in pregnancy in women with primary APS. To construct reference intervals of placental angiogenesis markers specific to women affected by primary APS in pregnancy by measuring the levels of sFlt-1and PlGF in serum maternal serum and their sFlt-1/PlGF ratio during the trimesters of gestation (I TM, II TM and III TM). For this aim the study will involve recruiting two groups of subjects, one will be cases and one will be controls.

Participants needed: 60
Trial details
Age: 18-45Biological sex: FemaleType: ObservationalSponsor: IRCCS San RaffaeleUpdated: Jun 18, 2025Locations: 1
Eligibility criteria

Group 1 [+6]

Group 1 [+11]

Status: Recruiting

Medically Assisted Fertilization Techniques in Systemic Immunoreumatologic Diseases

Systemic rheumatological diseases often occur in young women of childbearing age and can therefore impact fertility. There are diseases, such as arthritis, which present no contraindication to assisted reproductive techniques (ARTs), because there is no influence on the disease itself if the disease activity at conception is stable. On the other hand, patients suffering from connective tissue diseases, primarily Systemic Lupus Erythematosus (SLE) and patients suffering from primary or SLE-related Anti-Phospholipid Antibody Syndrome (APS), deserve more targeted therapies both in the context of ARTs and in the ensuing pregnancy. To evaluate the response to ARTs in patients with systemic rheumatological diseases, both in terms of reactivation of the underlying pathology and in terms of ARTs outcome.

Participants needed: 500
Trial details
Age: 18-50Biological sex: FemaleType: ObservationalSponsor: IRCCS San RaffaeleUpdated: Jun 18, 2025Locations: 1
Eligibility criteria

Patients diagnosed with systemic immunoreumatologic disease such as SLE, APS, RA... [+2]

Patients diagnosed with only one organ autoimmunity (e.g., diabetes mellitus I,... [+1]

Status: Recruiting

Commercial or Open Source Closed Loop Impact on Pregnancy Study

The goal of this observational study is to better understand what happens when pregnant people with type 1 diabetes (T1D) use automated insulin delivery (AID) systems. The main questions this study aims to answer are: * What are the maternal and neonatal outcomes with AID system use in pregnancy? * What are the glycemic outcomes with AID system use in pregnancy? * What are the behavioral and emotional outcomes with AID system use in pregnancy? Researchers will compare pregnant people who use commercial AID systems and pregnant people who use open source AID systems to see if outcomes are different with these different types of systems. Participants will be asked to remotely share their AID system data with the research team; complete online surveys regarding behavioral and emotional health; and sign an authorization to release health information to allow the research team to access medical records.

Participants needed: 1,000
Trial details
Age: 18+Biological sex: FemaleType: ObservationalSponsor: University of California, San FranciscoUpdated: May 7, 2025Locations: 1Duration: 1 Year
Eligibility criteria

Pregnant [+2]

Diagnosis of other forms of diabetes (gestational diabetes, type 2 diabetes, mon...

Status: Recruiting

T1D Pregnancy & Me

T1D Pregnancy \& Me will partner with pregnant participants living with type 1 diabetes (T1D) in the United States to collect real-world data on management of T1D in pregnancy. This is a remote study where participants can complete online surveys and share device data (continuous glucose monitor (CGM) data and insulin data). Through the collection of CGM, insulin, and pregnancy outcome data, the study will provide important information to understand how diabetes is being managed during pregnancy. These data will provide much needed evidence to guide modern management of diabetes during pregnancy with a goal of improving care and outcomes.

Participants needed: 500
Trial details
Age: 18+Biological sex: FemaleType: ObservationalSponsor: Jaeb Center for Health ResearchUpdated: May 6, 2025Locations: 10
Eligibility criteria

Age ≥18 years [+8]

Multiple pregnancy [+5]