Pregnancy

268

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

Condition / disease
Location
Status: Recruiting

Automated Insulin for Management of Intrapartum Glycemia

The goal of this clinical trial is learn if automated insulin delivery (AID) systems can be used for glucose management during labor/delivery for pregnant people with type 1 diabetes (T1D). The main questions this study aims to answer are * What are the neonatal glycemic outcomes with use of AID systems during labor/delivery? * Do patients report higher birth satisfaction with use of AID systems during labor/delivery? * Are glycemic parameters like time-in-range (TIR) better with use of AID systems during labor/delivery? Researchers will compare AID systems to intravenous (IV) insulin (the current standard of care for glucose management during labor/delivery) by randomly assigning participants to one or the other.

Participants needed: 150
Trial details
Age: 18-55Biological sex: FemaleType: InterventionalSponsor: University of California, San FranciscoUpdated: Jul 13, 2026Locations: 3
Eligibility criteria

Currently pregnant at ≥ 34 weeks [+4]

Multifetal gestation [+4]

Status: Recruiting

Facilitated Transitions From Postpartum to Primary Care Coordination for People With Chronic Conditions

The lack of postpartum primary care coordination is a missed opportunity to increase primary care engagement and manage chronic conditions early in life, especially for the \>30% of pregnant people who have or are at risk for these conditions. This study aims to increase postpartum primary care engagement, quality, and experience by strengthening postpartum transitions to primary care using a behavioral economics-informed, multi-component intervention integrated into usual inpatient postpartum care. Using a randomized controlled trial and repeated outcome assessments through administrative and survey data, this study will generate rigorous, actionable evidence to ensure primary care coordination becomes standard postpartum care practice, potentially catalyzing sustained primary care engagement throughout life.

Participants needed: 1,320
Trial details
Age: 18+Biological sex: FemaleType: InterventionalSponsor: Massachusetts General HospitalUpdated: Jul 13, 2026Locations: 1
Eligibility criteria

Receiving obstetric care at an MGH-affiliated obstetrics practice (except for th... [+12]

Status: Recruiting

Prenatal Music Exposure to Enhance Postnatal Language Development

The goal of this randomized controlled study is to evaluate the effect of prenatal music exposure on infants through two years of age. The study addresses two primary questions: * Whether prenatal music exposure enhances neural encoding of speech and improve language and cognitive outcomes during the first two years of life among fetuses * Whether predictive models can be developed from available fetal data to forecast individual differences in developmental outcomes among fetuses exposed to prenatal music. Participants will engage in music listening or self-learning five days a week until delivery. After the participants give birth, the children will be followed up on their neural responses to speech, as well as their language and cognitive development, until they reach two years of age. The investigators will compare the effects of low- and high-dose prenatal music exposure with a control group receiving education and develop models to predict outcomes in fetuses exposed to prenatal music.

Participants needed: 480
Trial details
Age: 18+Biological sex: FemaleType: InterventionalSponsor: Chinese University of Hong KongUpdated: Jul 13, 2026Locations: 2
Eligibility criteria

residents of the Greater Bay Area (GBA) with Cantonese and/or Putonghua being th... [+3]

Status: Not yet recruiting

Maternal Periodontal Inflammation and Pregnancy Outcomes: Salivary and Amniotic Biomarkers

Periodontal disease is a chronic inflammatory condition that affects the tissues supporting the teeth and may contribute to systemic inflammation and oxidative stress. Increasing evidence suggests that maternal inflammation during pregnancy may be associated with adverse pregnancy outcomes, including preterm birth. However, the biological mechanisms linking maternal periodontal inflammation to the intrauterine environment remain unclear. This prospective observational cohort study aims to investigate the relationship between maternal periodontal status and inflammatory and oxidative stress biomarkers measured in both saliva and amniotic fluid. Eighty healthy pregnant women between 28 and 32 weeks of gestation will be recruited from the Obstetrics and Gynecology Clinic of Gulhane Training and Research Hospital. Participants will undergo a comprehensive periodontal examination and provide unstimulated saliva samples. Amniotic fluid samples will be collected during delivery as part of routine obstetric care, without any additional invasive procedures. The concentrations of 8-hydroxy-2'-deoxyguanosine (8-OHdG), malondialdehyde (MDA), interleukin-6 (IL-6), and matrix metalloproteinase-8 (MMP-8) will be measured in saliva and amniotic fluid using enzyme-linked immunosorbent assay (ELISA). Pregnancy outcomes, including gestational age at delivery, birth weight, and pregnancy complications, will also be recorded. The study will evaluate whether maternal periodontal inflammation is associated with changes in inflammatory and oxidative stress biomarkers in saliva and amniotic fluid and whether these biomarkers are related to pregnancy outcomes. The findings may improve understanding of the biological relationship between oral health and pregnancy and may contribute to the identification of biomarkers associated with adverse pregnancy outcomes.

Participants needed: 80
Trial details
Age: 18-40Biological sex: FemaleType: ObservationalSponsor: Saglik Bilimleri UniversitesiUpdated: Jul 13, 2026
Eligibility criteria

Not listed

Status: Not yet recruiting

Supporting Just-In-Time Consent for Prenatal Screening: The INFORM Study

This clinical trial is about prenatal genetic screening. It will test an intervention to help people make decisions about screening. The intervention is a short set of information cards about screening. This intervention is for pregnant participants. They will use the intervention on their mobile phone before they see their doctor. The study has one main question: * Do participants who use the intervention feel more confident when they make a decision about screening? Researchers will compare participants who use the intervention to participants who do not. All participants will have their usual care when they visit their doctor. What will participants do? * Participants must be pregnant. They will sign up for the study before their first doctor's visit for their pregnancy. This is the visit where their doctor usually talks with them about screening. * Some participants will use the intervention before their first doctor's visit. Other participants will not use it. * All participants will talk with a researcher on the phone after their first doctor's visit. * Participants who use the intervention will answer a short survey on their phone. * A few participants who use the intervention will talk with a researcher a second time on the phone.

Participants needed: 1,400
Trial details
Age: 18+Biological sex: FemaleType: InterventionalSponsor: Case Western Reserve UniversityUpdated: Jul 1, 2026Locations: 3
Eligibility criteria

Currently pregnant and receiving care at a participating collaborative site - Un... [+4]

Not pregnant, not a patient at a partner clinical site [+4]

Status: Recruiting

A Study of Multiple Micronutrient Supplementation (MMS) to Increase Adherence With Digital Technology

The goal of this randomized clinical trial is to learn whether a digital health intervention can improve adherence to Multiple Micronutrient Supplementation (MMS) among pregnant women in Lombok Island. The study also aims to understand how individual characteristics, socio-economic factors, maternal health status, and antenatal care services influence adherence to MMS. The main questions it aims to answer are: 1. Does a digitally supported intervention increase adherence to MMS compared to standard care? 2. Does the type of MMS packaging (bottle vs. blister) affect adherence? 3. In the second stage, does adding calcium supplementation affect adherence to MMS? Researchers will compare four groups to see if digital support and packaging type improve MMS adherence: 1. Standard care with MMS in bottles 2. Standard care with MMS in blister packs 3. Digital intervention with MMS in bottles 4. Digital intervention with MMS in blister packs Approximately 10,012 pregnant women will be randomly assigned to one of these four groups using a 2×2 factorial design. Participants will: 1. Receive MMS through either bottle or blister packaging 2. Receive either standard care or a digital health intervention (such as reminders or digital support tools) 3. Attend routine antenatal care services 4. Be followed throughout pregnancy, delivery, and up to 42 days after childbirth In the second stage of the study, participants from community health posts (Posyandu) will also receive calcium supplementation in addition to MMS. Additional 900 pregnant women will be enrolled from the same Puskesmas areas participating in the MMS study to evaluate the addition of calcium supplementation. These participants will be recruited outside of the main MMS cohort and will be equally distributed across the four study arms. This stage aims to assess whether adding calcium supplementation influences adherence to MMS among pregnant women. Participants will be monitored during pregnancy, at delivery, and during the postnatal care period up to 42 days after birth. This study represents an early implementation of Multiple Micronutrient Supplementation (MMS) in Lombok Island, where MMS is not yet routinely available through government programs. Only selected primary healthcare centers (Puskesmas) that are randomized into the study will provide MMS to eligible participants. While the government has begun introducing MMS in other areas, it has not yet been implemented in Lombok. The digital health intervention will only be provided to pregnant women who agree to participate in the study and provide informed consent. All participants will continue to receive standard antenatal care (ANC) services in accordance with existing government programs. This study is also integrated with the ongoing distribution of iron and folic acid supplementation (TTD) in Lombok. Pregnant women who do not consent to participate in the study or do not receive MMS will continue to receive TTD as part of routine care outside of the study.

Participants needed: 10,012
Trial details
Age: 14+Biological sex: FemaleType: InterventionalSponsor: Summit Institute for Development, IndonesiaUpdated: Jul 1, 2026Locations: 1
Eligibility criteria

Pregnant women up to 32 weeks [+1]

Lost to follow up [+4]

Status: Recruiting

Poi for Mama: a Pilot to Improve Maternal Microbiome and Gestational Diabetes Risk

This investigator-initiated, non-randomized pilot study evaluates the effect of daily consumption of fermented poi on the maternal microbiome and gestational diabetes risk during pregnancy. Fifty pregnant participants between approximately 12 and 24 weeks of gestation will receive one pound of poi daily for four weeks, accompanied by culturally tailored nutrition education delivered via secure text messaging. Changes in vaginal, oral, and rectal microbiome composition, diet quality, gestational diabetes diagnosis, and pregnancy-related outcomes will be assessed and compared with matched controls derived from an existing cohort. This study aims to inform the feasibility and design of a larger culturally grounded dietary intervention for gestational diabetes prevention.

Participants needed: 50
Trial details
Age: 18+Biological sex: FemaleType: InterventionalSponsor: University of HawaiiUpdated: Jul 2, 2026Locations: 3
Eligibility criteria

Be at least 10 weeks into their pregnancy [+6]

Less than 10 weeks pregnant or already in third trimester [+6]

Status: Recruiting

Bonding Before Birth: A mHealth Intervention for First-time Expectant Couples

Emotional regulation is a key component of reducing parenting stress, a sense of self-efficacy, and thus successful parenting, child outcomes, and productivity amongst working parents. However, few interventions begin building these necessary components in pregnancy prior to the extremely stressful period immediately post-partum, where little trait and behavioural modification occurs. More importantly, most interventions overlook the importance of having both partners, despite fathers/partners playing a significant role in influencing maternal stress and mood symptoms. This goal of this study is to examine whether short weekly exercises delivered through a mobile app can help first-time parents feel better emotionally during pregnancy. These exercises are designed to help people manage their emotions and stress. Researchers want to know if doing these exercises, along with getting weekly feedback and encouragement, can reduce signs of depression and improve emotional control. Expecting mothers and fathers who are having their first child may be able to join the study if they meet certain conditions. Participants should be planning to stay in Singapore for the next two years and be comfortable using a smartphone and answering questions in English. Participants may benefit from learning new ways to manage stress and emotions, which could help improve their mental health. Participants will wear a Fitbit watch to track activity. They will complete a short weekly survey about their well-being during pregnancy and a monthly survey about their work productivity until six months after the baby is born. They will also answer online surveys about their health, relationships, and background at the start, three times during pregnancy, and three times after birth. In addition, they will visit the research lab twice to take part in tasks that measure thinking and behaviour.

Participants needed: 572
Trial details
Age: 21-75Biological sex: AllType: InterventionalSponsor: Institute for Human Development and Potential (IHDP), SingaporeUpdated: Jun 30, 2026Locations: 1
Eligibility criteria

21-50 years of age [+14]

Any pre-existing or history of psychotic depression, schizophrenia, and bipolar... [+6]

Status: Recruiting

Culturally Engaged REcovery: MOms Connected Through Native communitY

Pregnant and postpartum American Indian and Alaska Native people (Native mothers) face a more than two-fold higher risk of maternal mortality compared to non-Hispanic White mothers. Deaths related to substance use (SU) and mental health conditions are a leading cause of preventable maternal mortality, including among Native mothers, making these conditions a strong target for reducing maternal mortality and morbidity. The objective of this study is to 1) adapt evidence-based perinatal care models that integrate pregnancy and postpartum care with SU treatment and care to meet the needs of Native mothers, and 2) assess the implementation and efficacy of that model for participants with substance use disorder who identify as Native receiving prenatal care at Sacred Circle Healthcare in Salt Lake City, Utah.

Participants needed: 270
Trial details
Age: 18+Biological sex: FemaleType: ObservationalSponsor: University of UtahUpdated: Jul 1, 2026Locations: 1
Eligibility criteria

English or Spanish speaking [+4]

have a documented psychotic episode in the last 30 days [+4]

Status: Recruiting

A Repository to Study Host-Microbiome Interactions in Health and Disease

Background: The microbiome is the bacteria and other microorganisms that live inside and on the body. The microbiome is important for our health. Researchers study how the microbiome help people stay healthy. They study how the microbiome affects the body when people get sick. To do this research, they need samples of the microbiome living on the bodies of many people. The purpose of this natural history study is to collect microbiome samples in a repository. These samples will be used for future research. Objective: To collect microbiome samples from the body that can be used for future research. Eligibility: People of any age. Only those older than 3 years will be seen at the NIH clinic. Design: Participants will fill out a questionnaire. Topics will include their medical history and foods they eat. Participants will be asked to give 1 or more of the following: Stool, urine, saliva, vaginal fluid, and breastmilk. These samples can be collected at home and sent to the researchers. Cells from participants cheek, nose, mouth, skin, rectum, and/or vagina. The cells may be collected by rubbing the area with a sterile cotton swab. These procedures can also be done at home. Blood. Blood may be drawn using a needle inserted into a vein in the arm. For young children, blood may be collected by a prick on the heel or finger. Intestinal tissue samples. These may be collected from participants who are having an endoscopy or colonoscopy for other reasons. Skin tissue samples. These may be collected from participants who are having biopsies for other reasons.

Participants needed: 600
Trial details
Biological sex: AllType: ObservationalSponsor: National Institute of Allergy and Infectious Diseases (NIAID)Updated: Jun 30, 2026Locations: 1
Eligibility criteria

Aged >0 years. Only participants >3 years old will be seen at the NIH CC. [+2]

An individual who has any condition that, in the judgment of the investigator, m... [+6]

Status: Recruiting

The Effect of Ultrasound Visual Feedback on Birth Outcomes in Nulliparous Women With Levator Ani Muscle Co-activation at Term Pregnancy

The study aims to evaluate the effect of ultrasound-based visual feedback training of the pelvic floor muscles in nulliparous women at term pregnancy who present co-activation of the levator ani muscle, on the duration of the second stage of labor. This is a single-center, no-profit, randomized controlled interventional study. Compared with standard clinical practice, patients will be enrolled at term pregnancy during routine antenatal care, when a first session of ultrasound-based visual feedback training will be performed using transperineal ultrasound. Nulliparous women at term pregnancy showing co-activation of the levator ani muscle will be recruited within the standard care pathway. Participants will be randomized into two groups: Group 1 (intervention): patients will undergo ultrasound-based visual feedback training, including real-time visualization on the ultrasound screen and explanation of the most appropriate pushing technique. Group 2 (control): patients will receive only verbal instruction regarding the appropriate pushing technique. Given the absence of known major confounding factors, simple randomization will be used. The randomization list will be generated electronically using the REDCap platform. Recruitment will take place in the outpatient clinics of the Obstetrics and Prenatal Medicine Unit (U.O.C) at IRCCS AOU di Bologna, Sant'Orsola Hospital. Women in the intervention group will receive two ultrasound training sessions (visual feedback) one week apart at term pregnancy. Women in the control group, after enrollment, will be informed about the phenomenon of levator ani co-activation and will receive verbal instructions on how to relax the pelvic floor muscles. After delivery, maternal and neonatal outcomes will be assessed, including mode of delivery, indication for operative vaginal delivery if applicable, duration of the second stage of labor, vaginal-perineal lacerations, other puerperal complications, neonatal arterial and venous pH, base excess (BE), birth weight, and neonatal intensive care unit (NICU) admission. Data will be collected through review of medical records at 40 days postpartum.

Participants needed: 204
Trial details
Age: 18+Biological sex: FemaleType: InterventionalSponsor: IRCCS Azienda Ospedaliero-Universitaria di BolognaUpdated: Jun 30, 2026Locations: 1
Eligibility criteria

Nulliparous (first pregnancy) [+5]

Presence of uterine malformations [+4]

Status: Recruiting

Preliminary Effectiveness of Enhanced Text Message + Incentives

This study is a preliminary evaluation of a smoking cessation intervention designed for pregnant women that combines text message support and financial incentives. The aims of this study are to determine the preliminary feasibility and acceptability of text message + incentives (intervention) vs. text message only (control).

Participants needed: 50
Trial details
Age: 18+Biological sex: FemaleType: InterventionalSponsor: University of Kansas Medical CenterUpdated: Jun 30, 2026Locations: 1
Eligibility criteria

Pregnant women aged: 18+ [+4]

Not at all interested in quitting [+2]

Status: Recruiting

Pregnancy Surveillance Program of Patients Exposed to Epidiolex/Epidyolex During Pregnancy

The purpose of this study is to evaluate pregnancy-related health outcomes in participants who are exposed to Epidiolex/Epidyolex during pregnancy and their infant up to 12 months of life.

Participants needed: 50
Trial details
Biological sex: FemaleType: ObservationalSponsor: Jazz PharmaceuticalsUpdated: Jun 29, 2026Locations: 2
Eligibility criteria

Patients with exposure to at least 1 dose of Epidiolex/Epidyolex during the 13 d... [+1]

Status: Not yet recruiting

Personalized Care for Prenatal Stress Reduction & Prevention of Preterm Birth (PTB) Disparities

The goal of this clinical trial is to learn if a personalized prenatal support program \[(Personalized Toolkit Building a Comprehensive Approach to Resource optimization and Empowerment in Pregnancy \& Beyond, (PTBCARE+)\] works to lower stress and lower the risk of early delivery in pregnant individuals at high-risk for delivering preterm. The main question\[s\] it aims to answer are: * Does the PTBCARE+ patient support program lower patient-reported stress levels during pregnancy? * Does the PTBCARE+ patient support program improve biologic measures of stress during pregnancy? * Does the PTBCARE+ patient support program result in a higher chance of delivering a healthy baby at or close to full term? Researchers will compare people who participate in the PTBCARE+ patient support program to those receive usual care to see if the PTBCARE+ patient support program lowers patient-reported stress, improves biologic measures of stress, and increases the chance of delivering a healthy baby at or close to full term. Participants will be randomly assigned to receive the PTBCARE+ patient support program or usual prenatal care. All participants will be asked to: * complete 2 study visits during pregnancy - including completing electronic surveys, providing a blood and urine sample, measuring the heart rate variability by a clip or the ear or finger, and body composition evaluation using a simple scale-like device. * complete one study visit postpartum that includes completing electronic surveys, and measuring heart rate variability. Blood and urine sample collection and body composition evaluation via InBody scale are optional at the postpartum visit. People who are randomly assigned to receive the PTBCARE+ support program will receive several resources to help them during pregnancy. These things include items such as: * a stress reduction toolkit; * access to an online website that can also be downloaded as a smart phone app; * the option to receive an electronic massage while in clinic, and more. * additional support gifts provided at routine clinical appointments People who are randomly assigned to receive usual prenatal care will not receive any additional support resources from the study during pregnancy.

Participants needed: 1,228
Trial details
Age: 18+Biological sex: FemaleType: InterventionalSponsor: University of North Carolina, Chapel HillUpdated: Jun 29, 2026Locations: 1
Eligibility criteria

Viable, singleton pregnancy, 8+0 to 19+6 weeks, dated by last menstrual period ±... [+18]

Participation in another intervention based clinical trial during pregnancy that... [+23]

Status: Recruiting

CGM for Management of Type 2 Diabetes in Pregnancy

The goal of this clinical trial is to learn if continuous glucose monitoring works better than self-monitoring of blood glucose (fingersticks) to treat type 2 diabetes in pregnancy. It will also learn about all risk factors (biologic, personal, social) for maternal and infant complications in type 2 diabetes pregnancies. The main questions it aims to answer are: 1. Does continuous glucose monitoring improve infant outcomes compared to self-monitoring of blood glucose? 2. Does continuous glucose monitoring improve maternal diabetes control and other maternal outcomes compared to self-monitoring of blood glucose? 3. What other factors increase the risk of maternal and infant complications? Participants will: 1. Use continuous glucose monitoring or self-monitoring of blood glucose to monitor blood sugar control from enrollment until delivery 2. Have blood drawn at enrollment, 24 weeks, 34 weeks and delivery to measure hemoglobin A1c levels and store blood for future analysis 3. Complete surveys about social support, environmental stressors, diabetes distress and glucose monitoring satisfaction at research visits 4. Have umbilical cord blood collected at delivery for analysis

Participants needed: 564
Trial details
Age: 18-50Biological sex: FemaleType: InterventionalSponsor: University of Alabama at BirminghamUpdated: Jun 29, 2026Locations: 7
Eligibility criteria

Type 2 diabetes mellitus treated with daily insulin injections or oral hypoglyce... [+2]

Unable or unwilling to wear CGM due to intolerance to medical-grade adhesives or... [+7]

Status: Not yet recruiting

Prospective Evaluation of an AI Diagnostic Ultrasound Tool for Fetal Weight Estimation

Purpose: The primary objective of this study is to assess the diagnostic accuracy of an AI-enabled ultrasound tool for estimating fetal weight Participants: 1,000 pregnant individuals Procedures (methods): This prospective diagnostic accuracy study will enroll 1,000 pregnant individuals within one week of anticipated delivery. At a single visit, each participant will undergo two ultrasound assessments: (1) standardized sweeps for AI analysis (performed by both specialist and nonspecialist users), (2) specialist-performed fetal biometry.

Participants needed: 1,000
Trial details
Age: 18+Biological sex: FemaleType: ObservationalSponsor: University of North Carolina, Chapel HillUpdated: Jun 25, 2026Locations: 5
Eligibility criteria

18 years of age or older [+4]

Maternal body mass index ≥ 40 kg/m² [+3]

Status: Recruiting

When to INDuce for OverWeight? (WINDOW)

The rate of overweight and obese women becoming pregnant is increasing. Obesity in pregnancy along with delivery by cesarean section in obese women is associated with several complications as compared to normal weight women. The longer the woman is pregnant, the longer she is at risk. In an otherwise low-risk pregnant woman at term, it is an ongoing clinical dilemma, whether the benefits of elective induction of labor and termination of the pregnancy will outweigh the potential harms from concomitant induction and delivery process. The proposed study is a randomized controlled study of elective induction versus expectant management in obese women. The study will be carried out as a national multicenter study with inclusion of 1900 participants from Danish delivery wards. The null hypothesis is that the caesarean section rate is similar with elective induction of labor at 39 weeks of gestation, compared with expectant management among pregnant women with pre- or early pregnancy BMI≥30.

Participants needed: 1,900
Trial details
Age: 18+Biological sex: FemaleType: InterventionalSponsor: University of AarhusUpdated: Jun 26, 2026Locations: 12
Eligibility criteria

Legal or ethical considerations: maternal age <18 years, language difficulties r... [+8]

Status: Not yet recruiting

MoDi Twin Placental Imaging

Twin-twin transfusion syndrome (TTTS) can arise in monochorionic, diamniotic (MoDi), those identical twins arising from division of a single fertilized ovum at 4-8 days gestational age (GA) or monochorionic, monoamniotic (MoMo or Mono-Mono) twins, arising from division on day 8-13 GA. In monochorionic twin pregnancies sharing a single placenta often unevenly, anastomoses \[connections\] artery to artery (AA), vein to vein (VV), and artery to vein (AV) can occur. AV anastomoses usually flow unilaterally, shunting blood unevenly towards one twin and away from the other. This can lead to fluid overload and polyhydramnios along with many other pathologies in one twin while the other twin suffers from inadequate blood flow and oligohydramnios, along with secondary pathologies arising from these conditions. TTTS will affect approximately 8-10% of MoDi twins while 6% of MoMo twins will suffer with this condition. Treatment for TTTS is necessary, with the donor or 'pump' twin having around an 80% chance of death without medical intervention. The aim of this single arm, unblinded, feasibility study of the Verasonics Vantage 256 device is to leverage the devices ultrafast power Doppler imaging (uPDI) to perform microvascular mapping of the placenta in healthy, non-anomalous, 18-26 week gestational age (GA), monochorionic, diamniotic (MoDi) or monochorionic, monoamniotic (MoMo/MonoMono) pregnancies without TTTS, twin reversed arterial perfusion sequence (TRAP), or maternal vascular disease. Participants will be recruited in the Maternal Fetal Medicine department of Carilion Clinic, which specializes in high risk or complicated pregnancies. Pregnant subjects carrying monochorionic twins and scheduled for appointments at the clinic, who meet study eligibility criteria, will be approached between weeks 18 and 26 for study enrollment. Those providing informed consent will undergo a single, transabdominal ultrasound examination by a licensed ultrasonographer or obstetrician with the Verasonics Vantage 256 ultrasound machine, with imaging focused on mapping the vasculature of the placenta with ultrafast power Doppler imaging (uPDI). The ultrasound exam will last about 15 minutes and occur immediately after the subject's standard-of-care appointment at the clinic so as not to inconvenience subjects more than necessary. Similar to commercially marketable ultrasounds in the US, the Verasonics ultrasound will use the principle of 'As Low As Reasonably Achievable (ALARA) to output the lowest acoustic waves possible to achieve the ultrasound imaging. After the single ultrasound scan, subjects' electronic medical records will be used to source demographic, medical, obstetric, and other historical datapoints to better characterize the 10-subject study population and their babies. No follow-up contact with subjects is expected after the single research ultrasound visit.

Participants needed: 10
Trial details
Age: 18-45Biological sex: FemaleType: InterventionalSponsor: Carilion ClinicUpdated: Jun 25, 2026Locations: 1
Eligibility criteria

Subject is 18 to 45 years of age at screening [+5]

Suspected fetal genetic disorder(s) [+4]

Status: Recruiting

CARRII Native Intervention Optimization Trial

The purpose of this study is to identify the best combination of new intervention components to use with CARRII, the first automated online intervention for alcohol-exposed pregnancies (AEP). This intervention is specifically designed for Native women and others who can become pregnant. Our goal is to maximize the effectiveness of the online intervention while keeping costs manageable for Native communities.

Participants needed: 512
Trial details
Age: 18-44Biological sex: FemaleType: InterventionalSponsor: University of VirginiaUpdated: Jun 23, 2026Locations: 1
Eligibility criteria

Native American/American Indian/Alaska Native, [+3]

cognitive disorders including mental retardation, dementia, or psychotic disorde...

Status: Recruiting

Maternal And Infant Antipsychotic Study

The goal of this observational study is to learn about maternal psychiatric course and infant development in pregnant individuals with severe mental illness, comparing those treated with antipsychotics to those treated with other medications or without medication. The main questions it aims to answer are: 1. Is risk of psychiatric relapse different among individuals who take antipsychotic medication, other medication, or no medication? 2. Are pregnancy and neonatal health outcomes different among individuals who take antipsychotic medication, other medication, or no medication? 3. Do infant behavior and neurodevelopment differ among babies who were exposed to antipsychotic medication, other medication, or no medication in utero? Participants will * complete a psychiatric interview and questionnaires while pregnant; * donate blood from the mother and from the umbilical cord at delivery * have their babies participate in infant behavior evaluations and an EEG procedure. Researchers will compare these outcomes among individuals who were treated either with antipsychotic medication, with psychotropic medications of other classes, and with no medication, to see if psychiatric benefits for the mother and health outcomes for mother and child differ among these three types of treatment.

Participants needed: 74
Trial details
Age: 18+Biological sex: FemaleType: ObservationalSponsor: Icahn School of Medicine at Mount SinaiUpdated: Jun 22, 2026Locations: 1
Eligibility criteria

Pregnant [+4]

Active substance use disorder in pregnancy [+1]

Status: Not yet recruiting

Physical Activity in Bed Rest Hospitalized High-Risk Pregnant Women.

This study aims to evaluate the impact of a specifically designed exercise program for hospitalized high-risk pregnant individuals on bed rest. This is a specifically designed physical activiity program, consisting of a resistance and strength exercises intended to be performed even while in bed and seeks to address physical and emotional health challenges during hospitalization. The study will compare outcomes between participants who follow the exercise program and those receiving standard care. Primary outcomes include physical and emotional health parameters, quality of life, and sleep quality. Secondary outcomes focus on feasibility, adherence, and participant satisfaction. This research addresses the gap in physical activity guidelines for pregnant individuals on bed rest and explores the potential benefits of exercise to improve maternal well-being and postpartum recovery.

Participants needed: 140
Trial details
Age: 18+Biological sex: FemaleType: InterventionalSponsor: Hospital Clinic of BarcelonaUpdated: Jun 18, 2026Locations: 1
Eligibility criteria

Maternal age of 18 or more [+3]

Fetal death [+1]

Status: Not yet recruiting

Prospective Twin Pregnancy Cohort at Montpellier University Hospital

This prospective observational cohort study aims to investigate the impact of the maternal and early-life exposome on neonatal and early childhood health outcomes in twin pregnancies followed at University Hospital of Montpellier (France). Grounded in the Developmental Origins of Health and Disease (DOHaD) framework, the study focuses on how environmental, biological, and lifestyle exposures during pregnancy and the first year of life influence fetal growth, neonatal health, and early development. A total of 120 women with monochorionic or dichorionic twin pregnancies and their 240 children will be included. Maternal exposome assessment includes air pollution exposure, lifestyle, diet, medical history, and biological measurements. Neonatal outcomes, including abnormal birth weight, will be evaluated at birth, and children will be followed until one year of age to assess growth, health events, and developmental outcomes. Biological samples collected at different times during the study will allow the assessment of chemical exposures and epigenetic markers. This study aims to generate original French twin pregnancy data and to improve understanding of environmental determinants of early-life health.

Participants needed: 360
Trial details
Age: 18+Biological sex: AllType: ObservationalSponsor: University Hospital, MontpellierUpdated: Jun 18, 2026
Eligibility criteria

Patient of legal age (≥ 18 years) [+4]

Pregnant woman with at least one fetus presenting with a chromosomal or genetic... [+15]

Status: Recruiting

Substance Use in Pregnant People - Optimizing Retention in Treatment

Substance use during pregnancy is a leading cause of maternal morbidity and mortality in the United States, with 55-80% of postpartum patients disengaging from substance use disorder (SUD) treatment within one year of delivery. Structural and social determinants of health, including housing instability, transportation barriers, and limited childcare access, further exacerbate disparities in treatment retention. This pilot study, conducted in two specialized prenatal care clinics, evaluates the feasibility and acceptability of two integrated strategies to promote sustained engagement in recovery-oriented services during the perinatal and postpartum periods. Aim 1 implements a standardized social needs screening and referral protocol to connect patients with community-based supports. Aim 2 pilots a contingency management intervention to incentivize recovery-supportive behaviors. Findings will inform the design of a larger multi-site randomized controlled trial to evaluate the impact of these interventions on treatment retention, overdose prevention, and maternal-infant health outcomes.

Participants needed: 40
Trial details
Age: 18+Biological sex: FemaleType: InterventionalSponsor: Washington University School of MedicineUpdated: Jun 22, 2026Locations: 2
Eligibility criteria

Not listed

Status: Not yet recruiting

Mindfulness-Based Intervention in Primiparous Pregnant Women

This randomized controlled trial aims to evaluate the effect of a mindfulness-based intervention on childbirth self-efficacy, fear of childbirth, and self-compassion among primiparous pregnant women. Eligible pregnant women will be randomly assigned to either a mindfulness intervention group or a control group receiving routine antenatal education and standard prenatal care. The intervention program will consist of eight sessions delivered over four weeks. Outcomes will be assessed before and after the intervention using validated measurement tools. The findings may contribute to the development of effective psychosocial interventions to improve maternal well-being during pregnancy.

Participants needed: 128
Trial details
Age: 18+Biological sex: FemaleType: InterventionalSponsor: Agri Ibrahim Cecen UniversityUpdated: Jun 22, 2026Locations: 1
Eligibility criteria

Pregnant women aged 18 years and older [+8]

Multiple pregnancy [+5]

Status: Recruiting

Optimizing Anticoagulation in Pregnancies With Mechanical Heart Valves

The purpose of this pilot study is to collect data on pregnancies with mechanical heart valves to see if using a blood thinner called low molecular weight heparin (LMWH) and low dose aspirin (LDA) is comparable to warfarin/vitamin K antagonist (VKA) to reduce the chance of clotting around the mechanical valve and improve survival. The study is a pilot study as the study investigators need to ensure that the blood levels needed for adequate amounts of LMWH and warfarin can be maintained during pregnancy to be able to compare LMWH and aspirin to warfarin. If this study shows that we can collect the tests that are needed for a larger study, the individuals' information who participated in this pilot study will be moved to the larger study. The larger study will compare survival, clot development and cardiac function as well as safety of these two common blood thinners.

Participants needed: 100
Trial details
Age: 18-45Biological sex: FemaleType: InterventionalSponsor: Mount Sinai Hospital, CanadaUpdated: Jun 22, 2026Locations: 1
Eligibility criteria

Pregnant individuals with one or more MHVs [+3]

Have a platelet count less than 50 x 10(9)/L as there is an increased risk of bl... [+2]