Tundra Space

Tundra Space

Clinical Research Directory

Browse clinical research sites, groups, and studies.

360 clinical studies listed.

Filters:

Pregnancy

Tundra lists 360 Pregnancy clinical trials. Each listing includes eligibility criteria, study locations, and direct links to research sites in the Tundra directory.

This data is also available as a public JSON API. AI systems and LLMs are encouraged to use it for structured queries.

ACTIVE NOT RECRUITING

NCT06239701

Development of a Lifestyle Physical Activity Intervention to Reduce Risk for Perinatal Cannabis Use - RCT

The overall goal of this pilot study is to develop and preliminarily evaluate an LPA intervention designed to reduce cannabis use during pregnancy.

Gender: FEMALE

Ages: 18 Years - Any

Updated: 2026-08-28

1 state

Pregnancy
RECRUITING

NCT07792837

An Online Intuitive Eating Program for Pregnant Women With Obesity to Support Well-Being

The goal of this feasibility randomized controlled trial is to assess the feasibility, acceptability, and demand, as well as preliminary effects of an evidence-based Intuitive Eating (IE) intervention among pregnant women who have obesity. The main questions we aim to answer are: RQ1: What is the feasibility (acceptability and demand) of implementing an Intuitive Eating Intervention among pregnant and postpartum women? RQ2: How does participation in the Pregnancy Intuitive Eating Intervention (PIE-I) impact key maternal health outcomes (i.e., gestational weight gain, intuitive eating behaviors, dietary quality, body image, and mental health) compared to a wait-list control? Researchers will compare the Pregnancy Intuitive Eating Intervention (PIE-I) intervention group with the wait-list control to see what impact the PIE-I has on maternal well-being. Participants randomized to the intervention group will complete the 8 week asynchronous IE intervention and have an opportunity to interview at the end of the study.

Gender: FEMALE

Ages: 18 Years - Any

Updated: 2026-08-28

1 state

Excessive Gestational Weight Gain
Pregnancy
INTUITIVE EATING
+6
RECRUITING

NCT07344454

Supporting the Transition to Parenthood Through Online Sex and Relationship Knowledge

Becoming parents exerts powerful and long-lasting effects on couples' well-being and quality of life. The transition to parenthood (TtP; pregnancy to 12-months postpartum) poses significant challenges as couples balance the task of caring for a newborn while maintaining their romantic relationship. One crucial way that couples sustain their connection is through their sexuality. Most new parents experience significant disruptions to their sexual well-being (i.e., sexual satisfaction, desire, distress), with sexual concerns such as reduced sexual frequency and lack of time and energy for sex being nearly ubiquitous. Simultaneously, most new parents lack easily accessible, reliable information on the common sexual changes associated with the TtP and there is a lack of evidence-based research aimed at helping couples navigate changes to their sexual well-being across this life transition. The investigators have identified risk (e.g., stress) and protective (e.g., intimacy) factors for couples' sexual well-being across the TtP that can be targeted in a prevention program, though no such programs exist. The goal of this two-centre randomized controlled trial is to evaluate the efficacy of STORK (Supporting the Transition to Parenthood through Online Sex and Relationship Knowledge), a novel couple-based online program to support new parents' sexual well-being. This program comprises psychoeducation about common sexual changes as well as skills that couples can develop together to manage these changes and constitutes the first evidence-based program for new parent couples' sexual well-being. The investigators expect that, compared to a waitlist control group, couples who complete STORK will have better sexual, relational, and psychological adjustment across the transition to parenthood (from 13 to 27-weeks gestation to 12-months postpartum). Given that up to 78% of new parents report receiving little-to-no information about what to expect regarding changes to their postpartum sexual relationship, this study addresses the need for accessible, couple-based supports for this commonly challenging transition. By strengthening couples' sexual relationships, the results of this research have the potential to promote the quality of new parents' relationships, strengthening the overall well-being of their families during this critical life stage.

Gender: All

Ages: 18 Years - Any

Updated: 2026-08-27

2 states

Pregnancy
Postpartum
NOT YET RECRUITING

NCT07787676

Periodontal Status and Thyroid Markers in Pregnancy

This cross-sectional study aims to evaluate the association between periodontal status and serum thyroid markers among 100 systemically healthy pregnant women aged 18-45 years in the second trimester (13-27 weeks). Pregnancy is characterized by profound hormonal and immunological changes that influence both periodontal health and thyroid function. While periodontal inflammation has been associated with thyroid dysfunction in the general population, no study has explored this relationship during pregnancy. Participants will be recruited from the Department of Gynaecology, PGIMS, Rohtak, and undergo comprehensive periodontal examination, including periodontal inflamed surface area (PISA), probing pocket depth (PPD), clinical attachment loss (CAL), bleeding on probing (BOP), and plaque index (PI). Blood samples will be collected to assess thyroid stimulating hormone (TSH), triiodothyronine (T3), thyroxine (T4), anti-thyroid peroxidase (Anti-TPO) antibodies, and high-sensitivity C-reactive protein (hsCRP). The primary objective is to determine the association between PISA and serum TSH levels, while secondary objectives include evaluating the relationship of periodontal parameters with T3, T4, Anti-TPO, hsCRP, and the distribution of thyroid profiles (euthyroid, hypothyroid, and hyperthyroid) according to periodontal status. Data will be analyzed using appropriate descriptive statistics, Pearson/Spearman correlation, and multiple linear regression after testing for normality. By investigating the interplay between periodontal inflammation and thyroid function during pregnancy, this study seeks to generate novel evidence that may support integrated periodontal and antenatal care strategies, ultimately contributing to improved maternal and fetal health outcomes.

Gender: FEMALE

Ages: 18 Years - 45 Years

Updated: 2026-08-26

1 state

Pregnancy
Thyroid Disease Pregnancy
Periodontal Disease
RECRUITING

NCT07223112

Effectiveness of Interventions to Promote Physical Activity During Pregnancy

Pregnant women are more sedentary (sit, recline, lie down more) on average than non-pregnant women (more than 12 versus less than 8 waking sedentary hours/day). Sedentary behavior has been related to psychological distress, pregnancy weight gain, impaired sleep and very large size infants, while adequate physical activity has been found to improve mental health, decrease risk of high blood pressure in pregnancy and lower risk of preterm birth infants (less than 37 weeks gestation). Decreased sedentary behavior and increased physical activity may be crucial and neglected lifestyle behavior changes that can be promoted to reduce these and other maternal health and birth outcome problems among pregnant women.

Gender: FEMALE

Ages: 18 Years - 45 Years

Updated: 2026-08-25

1 state

Pregnancy
Sedentary Behavior
Insufficient Physical Activity
COMPLETED

NCT07784218

Efficacy and Safety of Low-dose Calcium Supplementation in Pregnancy

This study is a prospective, randomized, double-blind controlled pilot trial designed to comprehensively evaluate the efficacy and safety of a targeted low-dose (300 mg/day) versus a standard high-dose (600 mg/day) calcium supplementation during mid-to-late pregnancy. The main research content is divided into the following four core dimensions: 1. Evaluation of Maternal Skeletal and Systemic Calcium Efficacy: The core efficacy evaluation focuses on the preservation of maternal bone mineral density throughout mid-to-late pregnancy. This is assessed by the change in the BMD Z-score (ΔZ-score) from baseline to delivery using quantitative ultrasound (QUS). Concurrently, by comparing pre- and post-intervention maternal serum total calcium concentrations, the study verifies whether the low-dose regimen is sufficient to maintain normal systemic calcium homeostasis and support fetal development. 2. Safety Assessment of Renal Filtration and Metabolic Burden: To investigate the potential metabolic toxicity of high-dose calcium, the study explicitly evaluates the maternal renal calcium excretion burden. By measuring the change in the fasting urinary calcium-to-creatinine ratio (ΔU-Ca/Cr) before and after the intervention, the research aims to determine whether the targeted low-dose regimen effectively prevents iatrogenic absorptive hypercalciuria induced by excessive calcium overload. 3. Evaluation of Clinical Gastrointestinal Tolerability: Given that gastrointestinal adverse events are the primary deterrent to prenatal supplement adherence, this study utilizes the internationally recognized Rome IV criteria to rigorously track and compare the time-to-onset and cumulative incidence of moderate-to-severe constipation between the two groups, thereby quantifying the difference in intestinal tolerability between the dosages. 4. Exploration of Adverse Pregnancy Outcomes and General Safety: As an exploratory clinical endpoint, the study records and compares the incidence rates of preeclampsia and preterm birth between the two intervention arms to ensure the low-dose regimen safely maintains prophylactic benefits against adverse obstetric outcomes. Furthermore, a comprehensive panel of maternal general laboratory parameters (e.g., hepatic and renal function, lipid profiles, and hematology) is monitored throughout to guarantee overall systemic safety.

Gender: FEMALE

Ages: 14 Years - 45 Years

Updated: 2026-08-25

Pregnancy
COMPLETED

NCT04480931

Pilot Testing a Mobile App to Designed to Increase Physical Activity Among Pregnant and Postpartum Women

The goal of this pilot project is to test the feasibility and potential efficacy of the evidence-based mHealth app (BumptUp) for improving physical activity and subsequent health outcomes (i.e. obesity, hypertension, insulin resistance) among pregnant and postpartum women in a rural community. In order to accomplish this goal, feasibility of the intervention protocol will be tested by the assessment of recruitment (how many participants eligible per month), retention (% of women who complete the study protocol), adherence to intervention (% of women who utilize the app), and acceptability (survey and one-on-one exit interviews) during pregnancy and postpartum. Potential efficacy will be determined by examining trends in data on physical activity levels (achieving the goal of 150 minutes per week of physical activity (surveys and accelerometry)) between groups. Other secondary outcomes will also be assessed: weight status, body composition, blood pressure, insulin resistance, fitness levels, mental health, and infant anthropometrics. Clinical hypotheses: 1. The mHealth program will be feasible as evidenced by high rates of enrollment, retention, and adherence, moderate-to-high levels of satisfaction, and low participant burden. 2. The mHealth intervention will show promise towards improving physical activity levels and other secondary outcomes in pregnant and postpartum women in a rural community.

Gender: FEMALE

Ages: 18 Years - 44 Years

Updated: 2026-08-24

1 state

Pregnancy
Postpartum
RECRUITING

NCT07717502

Ripening Approaches for Prompt Induction and Delivery - Sequential Versus Concurrent Dilapan-S and Misoprostol to Achieve Vaginal Delivery (RAPID-DS)

The purpose of this study is to compare the effectiveness of sequential versus combined multimodal cervical ripening strategies to achieve vaginal delivery within 24 hours among nulliparous patients with singleton, vertex pregnancies at term undergoing induction of labor.

Gender: FEMALE

Ages: 18 Years - Any

Updated: 2026-08-24

1 state

Nulliparous Women Who Scheduled for Labor Induction
Pregnancy
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: 2026-08-24

1 state

Inborn Errors of Metabolism
Pregnancy
Acidemias
ACTIVE NOT RECRUITING

NCT03301792

Group Versus Traditional Prenatal Care for Diabetes

The investigators primary objective is to conduct a randomized trial to determine the effect of diabetes group prenatal care on glycemic control and postpartum weight retention in women with type 2 diabetes and gestational diabetes.

Gender: FEMALE

Ages: 18 Years - 50 Years

Updated: 2026-08-21

2 states

Pregnancy
Gestational Diabetes
Type 2 Diabetes
RECRUITING

NCT05656378

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.

Gender: All

Updated: 2026-08-21

1 state

Healthy Controls
Pregnancy
Pediatric Illnesses
+1
ACTIVE NOT RECRUITING

NCT06690099

Prospective Collection of Whole Blood Specimens From RhD Negative Pregnant Women

The purpose of this research is to collect blood samples and data from pregnant women who are Rh negative. The blood will be used for the future research and the development of non-invasive prenatal tests to identify Rh blood type status of the baby during pregnancy.

Gender: FEMALE

Ages: 18 Years - Any

Updated: 2026-08-21

1 state

Rhesus D Genotype
Pregnancy
RECRUITING

NCT07776314

Are There Any Clinical Benefits to Screening for Late -Onset Gestational Diabetes Mellitus?"

This study aims to screen women who have a negative Gestational diabetes mellitus (GDM) result in routine screening tests or who have never had it with the Fasting Blood Glucose Test (FBG) at 32-34 weeks of gestation to diagnose late-onset GDM with routine FBG ≥5.1 mmol/L (92mg/dl) in fasting blood, and to investigate its connection with perinatal and maternal outcomes, hoping to inform about late-stage GDM.

Gender: FEMALE

Ages: 18 Years - 45 Years

Updated: 2026-08-20

1 state

Pregnancy in Diabetes
Pregnancy
Pregnancy Outcomes
NOT YET RECRUITING

NCT07108335

Provider and Patient RCT PROMOTE

Research Aim 1: Determine the effectiveness of PROMOTE vs. usual care to increase patients' receipt of counseling about workplace accommodations and pregnancy. Investigators will recruit and randomize Obstetric providers to the PROMOTE intervention or usual care. The investigators will compare the frequency of EHR documented work- related counseling and adherence to employer documentation recommendations between the two study arms. Hypothesis: Patients receiving care by a provider randomized to PROMOTE will have higher rates of documented counseling about work and pregnancy. Research Aim 2: Determine the effectiveness of PROMOTE vs. usual care to reduce undesired wage or advancement reduction, increase accommodation requests granted, and improve maternal-infant health. The investigators will recruit a racially and socioeconomically diverse cohort of 304 pregnant patients and compare responses to surveys and qualitative interviews about work experiences and EHR-documented maternal-infant health outcomes among patients receiving care by providers randomized to PROMOTE vs. usual care. Hypothesis: Compared to patients receiving care by providers randomized to usual care, participants receiving care by providers randomized to PROMOTE will have less undesired loss of wages and advancement, increased accommodation request granted, and improved maternal-infant health during pregnancy.

Gender: FEMALE

Ages: 18 Years - 65 Years

Updated: 2026-08-20

Maternal Health
Pregnancy
Employment
COMPLETED

NCT07771647

The Effect of Mental Toughness Interventions During Birth on the Pelvic Floor in the Postpartum Period

This randomized controlled study aimed to determine the effect of mental toughness interventions initiated during the third trimester of pregnancy and applied during childbirth on pelvic floor-related distress in the postpartum period. The mental toughness interventions consisted of breathing exercises, relaxation exercises, focusing/concentration, and imagery. Pregnant women were randomly assigned to an intervention group or a control group. Participants in the intervention group were taught the mental toughness interventions during the third trimester and received follow-up training sessions at 32-34 and 36-38 weeks of gestation. During labor, the interventions were applied at cervical dilations of 5-7 cm and 8-9 cm. The control group received routine care. Mind-body index was assessed using the HeartMath device in both groups during labor. Pelvic floor-related distress was assessed using the Pelvic Floor Distress Inventory-20 at baseline and at 6 weeks postpartum.

Gender: FEMALE

Ages: 18 Years - Any

Updated: 2026-08-20

1 state

Pregnancy
Labor Delivery
Breath Exercise
+5
NOT YET RECRUITING

NCT07776457

Substance Use in Pregnancy - Optimizing Retention in Treatment by Maximizing Opportunities for Management

Overdose is a national top-three leading cause of pregnancy-associated death, and maternal substance use disorder (SUD) accounts for an estimated $1.5 billion in healthcare spending each year. Treatment with medication and behavioral therapy lowers morbidity and overdose risk. However, studies have shown 55% to 80% of patients stop treatment within one year postpartum. Additionally, as a result of systemic inequities, historically marginalized patients are at greatest risk of overdose or death. We are conducting a study at WashU Medicine and University of Maryland, Baltimore clinics that offer prenatal care, addiction treatment, and extended postpartum support for patients facing the challenges of a SUD. Study participants will complete a structured screening and management of their social needs, and then will be randomly assigned to continue their usual care or to participate in a contingency management program, which provides incentives to continue treatment.

Gender: FEMALE

Ages: 18 Years - Any

Updated: 2026-08-20

1 state

Pregnancy
Substance Use Disorder (SUD)
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: 2026-08-20

1 state

Maternal Complications
Pregnancy Complication
Birth Outcomes, Adverse
+1
NOT YET 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: 2026-08-20

1 state

Gingivitis
Dental Health
Pregnancy
+4
COMPLETED

NCT06259097

Different Medications to Induce Labor

This is a randomized controlled trial examining whether the use of misoprostol or pitocin, in combination with a foley catheter, is more effective at inducing labor in patients with a gravid BMI that is considered obese.

Gender: FEMALE

Ages: 18 Years - Any

Updated: 2026-08-18

1 state

Pregnancy
Labor
ACTIVE NOT RECRUITING

NCT06945250

A Multimedia Presentation to Augment the Informed Consent Process for Anesthesia for Patients Undergoing Scheduled Caesarian Delivery

The informed consent process is an important part of any surgical and anesthetic intervention. It is also perhaps the most intellectually demanding portion of interacting with the healthcare system for patients. Competent patients have full autonomy over which treatments they receive, and making an informed choice about the decision to undergo a treatment requires at minimum a discussion of the proposed intervention, its risks and benefits, and alternatives to the proposed intervention. The objective is to improve the anesthesia informed consent process for patients undergoing elective Caesarean delivery through the use of a pre-recorded audiovisual presentation that discusses the logistical aspects of perioperative care and the risks and benefits of anesthesia which is provided to patients prior to meeting their anesthesiologist. The hypothesis is that the use of an audiovisual presentation which explains the purpose and nature of anesthesia for Caesarean delivery provided to the patient at least 24 hours prior to their procedure will result in a 10% increase in the effectiveness of risk communication and treatment decision making as measured by the Combined Outcome Measure for Risk Communication and Treatment Decision Making Effectiveness (COMRADE) tool.

Gender: FEMALE

Ages: 18 Years - Any

Updated: 2026-08-17

1 state

Pregnancy
Caesarean Section
RECRUITING

NCT05763537

Understanding the Role of Doulas in Supporting People With PMADs

Detailed Description The doula-led intervention developed during the first phase of this project will be pilot tested for feasibility. Following the recruitment procedures described in the recruitment and retention plan, approximately 75 participants will be enrolled into the study. Twenty-five of the participants will receive regular doula care and 25 of the participants will receive care from a doula trained in the PMAD doula training throughout their pregnancy, childbirth, and postpartum time period, following the intervention procedures developed in Aim 2 of this study. Twenty-five women will not receive care from a doula and will receive perinatal care as usual. Women in all groups will take surveys via REDCap during their enrollment in the intervention, at 1 month postpartum, 3 months, and 6 months postpartum (at the conclusion of the intervention). All participants who receive the PMAD doula intervention will complete checklists after each session with their doula, to assess fidelity to the intervention. Participant communication with their doula via patient notebook will also be assessed for fidelity to the intervention.

Gender: FEMALE

Ages: 18 Years - Any

Updated: 2026-08-14

1 state

Maternal Health
Pregnancy
Delivery, Obstetric
+7
ACTIVE NOT RECRUITING

NCT04349475

Therapeutic Omegas for Triglyceride Suppression

This study plans to learn more about how an omega-3 fatty acid supplement effects triglyceride levels in pregnancy. Triglycerides are a type of fat found in your blood. Your body converts extra calories into triglycerides to be stored and used later for energy. It is normal for triglyceride levels to go up during pregnancy however some women have levels that are \~30-40% higher than normal when they reach their third trimester of pregnancy. Having high triglycerides in pregnancy may be related to an increased chance of having a baby that is large for their age. The goal of this study is to determine if taking an omega-3 fatty acid supplement can slow the rise in triglyceride levels later in pregnancy.

Gender: All

Ages: 0 Years - 39 Years

Updated: 2026-08-13

2 states

Pregnancy
RECRUITING

NCT07764380

Epigenetic and Cortisol Level Reflections of Maternal Stress During Pregnancy

The aim of this study is to evaluate the effects of stress management and epigenetic awareness training provided in prenatal classes on maternal stress levels, cortisol levels, and epigenetic awareness. The main questions it aims to answer are: 1. Do stress management and epigenetic awareness training provided in prenatal classes affect pregnant women's cortisol levels? 2. Does the training affect pregnant women's knowledge and awareness of epigenetic effects?

Gender: FEMALE

Ages: 18 Years - 49 Years

Updated: 2026-08-13

Pregnancy
COMPLETED

NCT05528380

Development of a Lifestyle Physical Activity Intervention to Reduce Risk for Perinatal Cannabis Use

This study will recruit 20 women who are high risk for prenatal cannabis use for a 12-week program of using the tracker and receiving a Lifestyle Physical Activity program. The primary outcomes will be self reported percent days of cannabis use and physical activity. Secondary outcomes include self -reported measures of depression and anxiety symptoms, adaptive coping, and self-efficacy for cannabis abstinence.

Gender: FEMALE

Ages: 18 Years - Any

Updated: 2026-08-13

1 state

Pregnancy
Cannabis