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Clinical Research Directory

Browse clinical research sites, groups, and studies.

377 clinical studies listed.

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Pregnancy

Tundra lists 377 Pregnancy clinical trials. Each listing includes eligibility criteria, study locations, and direct links to research sites in the Tundra directory.

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COMPLETED

NCT04985903

Baby Steps III: Testing a Clinician and Patient Intervention to Promote Smoking Cessation Among Pregnant Women

The investigators propose to conduct a combined intervention that pairs SMS smoking cessation messages for patients with individualized training for OB clinicians to improve quit rates among pregnant smoking. The aim is to determine the effect of the intervention versus control on smoking cessation outcomes on patient smoking cessation. The investigators will recruit patients at their first OB visit who report smoking at Duke and Pitt. Patients in both the control and intervention arm will receive smoking cessation support messages throughout their pregnancy. OB clinicians in the intervention arm will receive tailored smoking cessation counseling training. Clinicians in both arms will receive a one-time 5 A lecture. The investigators will analyze smoking cessation outcomes and audio recordings. This is a minimal risk study.

Gender: All

Ages: 18 Years - Any

Updated: 2026-10-15

1 state

Smoking Cessation
Pregnancy
Communication Research
COMPLETED

NCT07482098

Gastric Ultrasound After Clear Fluid Intake in Diabetic and Non-Diabetic Pregnant Women

Pulmonary aspiration of gastric contents during anesthesia is a serious perioperative complication associated with significant morbidity and mortality. Pregnant women are at increased risk of aspiration because of physiological changes such as delayed gastric emptying and increased intra-abdominal pressure. In addition, gestational diabetes mellitus (GDM) may affect gastric motility and gastric emptying. Current fasting guidelines allow the intake of clear fluids up to two hours before anesthesia. However, the effect of preoperative oral clear fluid intake on gastric volume in pregnant women with GDM remains unclear. This prospective interventional study compares gastric volume measured by gastric ultrasonography in term pregnant women with and without gestational diabetes mellitus (GDM) undergoing elective cesarean delivery. Participants receive 200 mL of oral water after baseline gastric ultrasonography. Gastric ultrasonography is performed before water intake (T1), immediately after completion of water intake (T2), and two hours after water intake immediately before anesthesia (T3) to evaluate gastric volume and gastric content. The study aims to improve the assessment of gastric volume and perioperative fasting in pregnant women, particularly those with gestational diabetes mellitus.

Gender: FEMALE

Ages: 18 Years - 40 Years

Updated: 2026-10-15

1 state

Pregnancy
Gestational Diabetes Mellitus (GDM)
RECRUITING

NCT07066631

The Pregnancy and Postpartum Mental Health Optimization Virtual Intervention Network

Depression, anxiety, and related disorders such as post-traumatic stress and obsessive compulsive disorder affect about 20% of pregnant and postpartum people. When not treated properly, these issues negatively impact not only affected people, but also their children's health and development. Only 1 in 5 receive adequate treatment, so identifying new system-wide approaches to reliably deliver recommended care to perinatal mental health patients all is a crucial health care priority. The Pregnancy and Postpartum Mental health Optimization Virtual Intervention Network (MOVIN) is a scalable perinatal mental health platform building on the evidence-based Collaborative care delivery model. MOVIN's online platform allows patients to connect with a care coordinator to co-develop personalized treatment recommendations, in collaboration with their primary care clinician and a perinatal psychiatrist when needed; progress is tracked to re-evaluate.

Gender: FEMALE

Ages: 18 Years - Any

Updated: 2026-10-13

1 state

Depression
Postpartum
Anxiety
+1
COMPLETED

NCT07871032

Climate Change Education Based on the IMB Model for Pregnant Women

Climate change can affect the health of pregnant women and their babies, for example through extreme heat and air pollution. Many pregnant women worry about these effects but do not know how to protect themselves. This study tested whether a short education program could help pregnant women understand these risks and learn practical ways to protect their health. Pregnant women attending an antenatal education class took part in one group education session lasting about one hour. The session covered how climate change affects pregnancy and newborn health, helped women think about their own risks, and taught simple protective steps, such as staying safe on very hot days and on days with poor air quality. Women completed questionnaires before the session and again four weeks later. The study looked at changes in their awareness of climate change, their worry about climate change, how risky they felt their pregnancy was, and their fear of childbirth.

Gender: FEMALE

Ages: 18 Years - Any

Updated: 2026-10-13

Pregnancy
Climate Change Anxiety
Risk Perception
+1
COMPLETED

NCT07406373

Intra-abdominal Pressure, Abdominal Circumference, and Spinal Block Level in Cesarean Section

Spinal anesthesia is commonly used for cesarean section and provides effective anesthesia with rapid onset. However, the spread of spinal anesthesia may vary among pregnant women due to physiological and anatomical changes during pregnancy. Increased intra-abdominal pressure and abdominal circumference may influence cerebrospinal fluid dynamics and affect the level of sensory block achieved after spinal anesthesia. This prospective observational study aims to evaluate the relationship between intra-abdominal pressure, abdominal circumference, and the maximum sensory block level following spinal anesthesia in pregnant women undergoing cesarean section. Intra-abdominal pressure and abdominal circumference will be measured before surgery, and sensory block levels and hemodynamic parameters will be assessed after spinal anesthesia. The findings of this study may help to better understand factors affecting spinal block spread in pregnant patients.

Gender: FEMALE

Ages: 18 Years - 40 Years

Updated: 2026-10-13

1 state

Cesarean Section
Pregnancy
Elective Cesarean Section
COMPLETED

NCT02322177

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

Background: \- People with inborn errors of metabolism can t turn food into energy the right way. This can affect a person s growth and health. Researchers want to know how this condition affects a pregnant woman and her baby. Objectives: \- To collect data from the medical records of women with an inborn error of metabolism. Also, to create a pregnancy registry of inborn errors of metabolism. Eligibility: * Women with an inborn error of metabolism who either: * have been pregnant in the past, * are currently pregnant, or * have recently talked with their doctor about becoming pregnant. Design: * This study will collect data only. No extra tests will be done. * Participants will be in the study for the length of their pregnancy and for 1 year after delivery. * Participants will answer questions about their family s health. * The participant s doctor will send their medical records to researchers. These may include data about: * Last health care visit before pregnancy * Blood, urine, ultrasound, or lab results during pregnancy * Delivery and recovery after delivery * Researchers will ask for the test(s) used to confirm pregnancy. * After the participant has her baby, researchers will ask for data about how the baby is doing. This may include when the baby is sitting, walking, talking, etc. * The data will be placed into a database. The database will not include the participant s name or identifying data.

Gender: FEMALE

Ages: 14 Years - 50 Years

Updated: 2026-10-13

1 state

Inborn Errors of Metabolism
Pregnancy
Acidemias
ACTIVE NOT RECRUITING

NCT04961840

A Study to Assess Maternal and Fetal Outcomes After Taking Prucalopride During Pregnancy

This study will collect information on pregnant women diagnosed with constipation from the two large health care insurance claims records. It will include the following groups: * Those who took prucalopride. * Those who took other medicines for constipation. * Those who did not take any prescription medicines for constipation. The main aim of the study is to find out whether the medicine prucalopride, which is used to treat constipation, is safe for use during pregnancy and to look at whether taking prucalopride at certain times during pregnancy is associated to a higher chance of specific health problems for the mother or baby. The study uses two large existing healthcare insurance databases for collecting information. Participants are not enrolled, treated, or required to visit the doctor during this study.

Gender: FEMALE

Ages: 18 Years - 44 Years

Updated: 2026-10-13

1 state

Constipation
Pregnancy
COMPLETED

NCT05512247

Hearty Meals for Mom- Pilot Study of Meal Delivery for Cardiometabolic Health During Pregnancy

This study is being done to assess the feasibility, acceptability, and preliminary impact of a meal delivery intervention designed to improve diet quality and promote appropriate gestational weight gain among predominantly Black and low-income pregnant women with overweight or obesity. This will be done by 1) assessing the feasibility and acceptability of the meal delivery intervention; 2) investigating changes in patient-reported diet quality, barriers to healthy eating, and food security; and 3) exploring the preliminary impact of the meal delivery intervention on gestational weight gain and blood pressure and estimate the effect size of the intervention relative to a de-identified non-randomized control group that will be derived from de-identified hospital records.

Gender: FEMALE

Ages: 18 Years - Any

Updated: 2026-10-13

1 state

Diet, Healthy
Pregnancy
RECRUITING

NCT07054359

"HBV unIversal vs Point-Of-Care-based Antiviral treatMent to Prevent Mother-to-child Transmission"

To achieve global elimination of hepatitis B virus (HBV), it is crucial to eliminate HBV mother-to-child transmission (MTCT) by ensuring high coverage of birth dose vaccine and expanding the adoption of peripartum antiviral prophylaxis (PAP) by tenofovir. Current international guidelines require hepatitis B surface antigen (HBsAg)-positive pregnant women to undergo viral load (VL) quantification to identify those at high risk (VL ≥200,000 IU/mL) who should receive PAP. However, VL testing remains inaccessible in many low- and middle-income countries (LMICs), particularly in rural areas. Consequently, in the forthcoming guidelines, the WHO is going to issue a conditional recommendation for administering PAP to all HBsAg-positive women lacking access to VL testing. Although this universal strategy may appear promising for simplifying the diagnostic process, it may result in overtreating the majority of HBsAg-positive pregnant women, estimated at 85% in Africa and 70% in Asia, for whom birth dose vaccine is likely sufficient. Moreover, the real-world applicability of this strategy in LMICs has never been formally tested. As an innovative alternative, the adoption of a rapid point-of-care test for hepatitis B core-related antigen (HBcrAg-RDT) is proposed to identify women eligible for PAP.This test requires only a drop of capillary blood, eliminating the need for electricity or centrifugation, and can provide a reliable result within 45 minutes. Compared to the universal strategy, HBcrAg-RDT strategy is expected to be less expensive and could prevent unnecessary tenofovir exposure for both women and their fetuses. Our aim is to establish the non-inferiority of the HBcrAg-RDT strategy, in comparison to the universal strategy, in terms of effectiveness, defined as the reduction in maternal VL at the time of childbirth, a main driver of the MTCT risk. This will be approached through a multidisciplinary framework integrating health economics, implementation science, and health policy analysis.

Gender: FEMALE

Ages: 18 Years - 50 Years

Updated: 2026-10-08

HBV Infection
Pregnancy
RECRUITING

NCT07377344

CHEER Oral Health in Pregnancy Study

Many pregnant people don't get the dental care they need, even though it's safe and important. The CHEER Study offers free dental check-ups, cleanings, and supplies to help participants take care of their teeth and gums during pregnancy. The purpose of this research study is to compare two types of noninvasive oral health interventions to evaluate their effectiveness. We want to learn if one method is more effective in supporting oral health and improving pregnancy outcomes. There are two aims of this study: Aim 1: To evaluate whether a structured oral health intervention reduces periodontal inflammation during pregnancy and postpartum in pregnant people with indicators of periodontal disease. Aim 2: To assess whether a structured oral health intervention is associated with changes in oral health behaviors or birth outcomes in pregnant people with periodontal disease.

Gender: FEMALE

Ages: 18 Years - Any

Updated: 2026-10-08

1 state

Gingivitis
Dental Health
Pregnancy
+4
RECRUITING

NCT07852624

Comparison of Different Anesthetic Techniques on Hearing Outcomes in Neonates After Cesarean Delivery

This is a single-center, prospective, single-blind randomized controlled trial. The investigators plan to recruit 144 pregnant women scheduled for cesarean delivery. Participants will be randomly assigned to receive either combined spinal-epidural anesthesia (CSEA) or general anesthesia (GA). The study aims to compare the effects of these two anesthetic techniques on neonatal hearing after cesarean delivery. The investigators will collect neonatal transient evoked otoacoustic emission (TEOAE) screening results and conduct follow-up hearing assessments at 3-6 months of age for infants who fail repeat screening. The investigators will also record maternal intraoperative hemodynamic changes, the interval from anesthesia initiation to neonatal delivery, neonatal Apgar scores at 1 and 5 minutes, and maternal postoperative pain scores at multiple time points.

Gender: FEMALE

Ages: 18 Years - 35 Years

Updated: 2026-10-08

Pregnancy
Neonatal Hearing Function
COMPLETED

NCT07856576

Effect of a Social-Support-Based Educational Intervention on COVID-19-Related Anxiety and Perceived Social Support in Pregnant Women: A Randomized Pretest-Posttest Controlled Trial

The goal of this randomized controlled trial is to learn if a spouse-inclusive, social-support-based educational intervention can reduce COVID-19-related anxiety and improve perceived social support in pregnant women during public health emergencies. The main questions it aims to answer are: * Does the intervention reduce COVID-19-related anxiety in pregnant women compared to routine care? * Does the intervention improve perceived social support across its five dimensions (emotional, informational, tangible, affection, and positive social interaction)? Researchers will compare a group of pregnant women and their spouses who receive the seven-session educational program to a control group that receives only routine prenatal care, to see if the intervention reduces anxiety and enhances social support. Participants will: * Attend seven weekly 60-minute face-to-face sessions together with their spouses, which include group discussions, lectures, and Q\&A * Receive supplementary virtual messages (motivational and educational content) between sessions * Complete questionnaires measuring COVID-19 anxiety and perceived social support at three time points: before the intervention, immediately after, and one month later

Gender: FEMALE

Updated: 2026-10-02

1 state

Pregnancy
Anxiety
COVID-19
+1
RECRUITING

NCT07229261

MitoQ to Improve Vascular Funciton in Preeclampsia

Preeclampsia is a leading cause of maternal and neonatal morbidity and mortality. There is a lack of effective therapeutics for prevention or treatment. Our previous ex vivo work demonstrated that mitochondrial-antioxidants can reverse placental microvascular damage. Therefore, this study will evaluate whether MitoQ (Mitoquinol Mesylate, a mitochondrial-antioxidant) has the potential to restore vasodilation, improve placental function, and therefore promote pregnancy prolongation in patients with gestational hypertension (gHTN) and/or preeclampsia. This evaluation of clinical data, patient samples, and vascular function studies in patients with gHTN and/or preeclampsia could translate into a viable therapeutic option.

Gender: FEMALE

Ages: 18 Years - 50 Years

Updated: 2026-10-02

1 state

Preeclampsia
Pregnancy
ACTIVE NOT RECRUITING

NCT07226492

Cash Transfers to Pregnant Women With HIV

The goal of this study is to evaluate the effectiveness and implementation of an unconditional cash transfer intervention to improve mental bandwidth, ART adherence, and postpartum retention among pregnant women with HIV in Botswana. The main questions it seeks to answer are: 1. Do unconditional monthly cash transfers improve mental bandwidth relative to usual care among pregnant women with HIV? 2. Do unconditional monthly cash transfers improve ART adherence (PDC) during pregnancy and the postpartum period? 3. Is delivery of UCTs via mobile money feasible and acceptable in public ANC clinics in Botswana? 4. What barriers and facilitators affect implementation, and how should the model be adapted for a larger trial or a policy pilot (e.g., a pregnancy support grant)?

Gender: FEMALE

Ages: 18 Years - Any

Updated: 2026-10-02

HIV
Pregnancy
HIV Antiretroviral Therapy (ART) Adherence
+1
RECRUITING

NCT06942598

Feasibility of an ADAPTive Intervention to Improve Food Security and Maternal-Child Health

Food insecurity affects up to 30% of pregnancies and leads to worse health in pregnant people and their children, including an increased risk of gestational diabetes, pre-term birth, and future cardiometabolic chronic conditions (e.g., type 2 diabetes and obesity). Interventions are being utilized to address food insecurity in clinical care settings, but patients differ in the support needed to reduce food insecurity and health systems have limited resources to invest in these interventions. Rather than a single intervention, adaptively allocating interventions could be a more effective, equitable, and efficient approach to improve food security; the objectives of this pilot study are to determine the feasibility of recruiting, retaining, and adaptively providing food insecurity interventions to pregnant patients in anticipation of a large, definitive trial in the future.

Gender: FEMALE

Ages: 18 Years - Any

Updated: 2026-10-02

1 state

Food Insecurity
Pregnancy
RECRUITING

NCT06113237

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.

Gender: FEMALE

Updated: 2026-10-02

1 state

Maternal Complications
Pregnancy Complication
Birth Outcomes, Adverse
+1
NOT YET RECRUITING

NCT07855146

Improving the Childbirth Experience for Women Who Have Undergone Cervical Ripening by Involving Them in the Choice of Ripening Technique

This is a prospective, single-centre, quasi-experimental before-and-after study. Women due to give birth at the participating centre will be informed about the study during their 9th-month antenatal appointment. Only expectant mothers for whom cervical ripening is indicated will be included. During the BEFORE period, cervical ripening will be offered to them according to the method chosen by the healthcare team following a discussion of their case at a team meeting. During the AFTER period, the various possible methods of cervical ripening will be offered to the patient, and the choice of method will be left to her. The participants' experiences will be compared using the QEVA self-assessment questionnaire, completed two days after delivery.

Gender: FEMALE

Ages: 18 Years - Any

Updated: 2026-10-02

Pregnancy
Cervical Ripening
Childbirth
NOT YET RECRUITING

NCT07167199

Absorbable Staples Versus Conventional Skin Closure in Women Undergoing Cesarean Delivery

Despite the high numbers of cesareans being performed, scientific evidence behind which surgical techniques are best remains uncertain. Our objective is to determine if subcuticular absorbable staples improve operative time and wound cosmetics

Gender: FEMALE

Ages: 18 Years - 50 Years

Updated: 2026-09-30

1 state

Pregnancy
COMPLETED

NCT07845773

Effects of Antenatal Nutrition Counseling on Maternal and Infant Outcomes

This randomized controlled trial evaluated whether individualized antenatal nutrition counseling provided between 24 and 36 weeks of gestation could improve maternal dietary quality, dietary inflammatory potential, gestational weight gain, postpartum depressive symptoms, and infant growth outcomes among pregnant women with a pre-pregnancy body mass index of 25-30 kg/m². Participants were assigned to either an intervention group receiving six structured nutrition counseling sessions or a control group receiving standard written nutrition information and routine antenatal care. Assessments were conducted at 24 weeks and 36 weeks of gestation and at two months postpartum.

Gender: FEMALE

Ages: 19 Years - 40 Years

Updated: 2026-09-29

Overweight
Pregnancy
NOT YET RECRUITING

NCT06915428

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.

Gender: FEMALE

Ages: 18 Years - Any

Updated: 2026-09-29

1 state

Preterm Birth Complication
Preterm Birth
Preterm Birth Recurrence
+19
NOT YET RECRUITING

NCT07695909

Gestational Changes in Hemodynamics and Respiratory Mechanics in Association With Pre-Eclampsia

This study focuses on elucidating the changes of hemodynamics assessed by USCOM and respiratory mechanics assessed by impedance oscillometry (IOS) over the course of pregnancy and the postpartum period. Additionally, to understand how these changes over the course of gestation relate to the development of preeclampsia.

Gender: FEMALE

Ages: 18 Years - 50 Years

Updated: 2026-09-28

1 state

Pre-eclampsia
Pregnancy
Post Partum
RECRUITING

NCT07799805

Deconstructing Maternal Burdens: Doulas and the Community Unite for Health

This study is a randomized controlled trial comparing two models of doula support for pregnant individuals enrolled in Medicaid: an enhanced doula support model, in which support starts earlier in pregnancy, occurs more frequently, and continues through the first year after birth, versus the standard doula care currently covered by Medicaid in Florida. The study also builds the doula workforce needed to sustain this model of care, training doulas to become eligible to bill Medicaid for their services. The primary goal is to determine whether the enhanced doula model results in significantly lower rates of perinatal depressive and anxiety symptoms compared to standard doula support, while gathering data on real-world implementation. The study also evaluates the effectiveness of Medicaid-covered doula services more broadly, with findings intended to inform state-level policy on Medicaid reimbursement and the extension of doula services into the postpartum period.

Gender: FEMALE

Ages: 15 Years - 49 Years

Updated: 2026-09-28

1 state

Pregnancy
Post Partum
Doula Care
+6
COMPLETED

NCT01131117

Fetal Programming of Obesity

The overall goal of this project is to understand how a mother's health at conception may influence her child's growth and development.

Gender: FEMALE

Ages: 21 Years - Any

Updated: 2026-09-25

1 state

Healthy
Pregnancy
COMPLETED

NCT02125149

The Expecting Study

The purpose of the study is to determine how a mother's health and physical activity may influence her child's growth and development.

Gender: FEMALE

Ages: 18 Years - Any

Updated: 2026-09-24

1 state

Pregnancy
Obese