Clinical trials · California
Pregnancy clinical trials in California
We’re tracking 49 recruiting pregnancy studies with a site in California — including Phase 2/Phase 3 and Phase 4 studies, each written for real people, not researchers.
Recruiting studies in California
- NCT03085875Recruiting
Healthy Pregnancy Study for Moms Using Phone Apps
This study looks at healthy pregnancy habits and support for expecting moms (and moms up to 8 weeks after delivery) through a research community. It may help you compare or improve health behaviors with guidance and study activities delivered on your phone or tablet.
La Jolla, CaliforniaAges 16 years+ - NCT02103361Recruiting
Pregnancy registry for Stelara or Tremfya exposure
This study is a pregnancy exposure registry. It collects information to better understand pregnancy outcomes after exposure to Stelara or Tremfya (medicines used for autoimmune diseases).
La Jolla, CaliforniaAges Any age - NCT07377344Recruiting
Gum health care during pregnancy
This trial tests ways to improve gum health during pregnancy. If you have gum disease or are at risk, the study may provide dental care that could help both you and your baby.
San Francisco, CaliforniaAges 18 years+ - NCT06654713Recruiting
Closed-loop insulin system impact on pregnancy study
This study looks at how automated insulin delivery systems (closed-loop pumps) work during pregnancy for women with type 1 diabetes. It aims to understand how these systems can help manage blood sugar levels safely for both you and your baby.
San Francisco, CaliforniaAges 18 years+ - NCT06430853Enrolling by invitation
Pregnancy support study for moms with anxiety or depression
This study tests if a mental health program during pregnancy can help mothers with past or current anxiety or depression. You'll get support and you may feel better and have a healthier pregnancy.
Stanford, CaliforniaAges 18 years+ - NCT05634967Recruiting
Kesimpta pregnancy registry for pregnant people with MS
This registry collects information about pregnancy outcomes in people with multiple sclerosis (MS) who have taken Kesimpta (ofatumumab) during pregnancy or shortly before it. It may help doctors better understand safety and developmental outcomes for babies.
La Jolla, CaliforniaAges 18–100 - NCT05938478Recruiting
Pregnancy registry for outcomes after tralokinumab exposure
This study tracks pregnancy and baby outcomes in people who have been pregnant while taking tralokinumab, a medication for eczema. It compares those outcomes to other eczema treatment groups to help doctors understand potential risks or reassuring effects.
La Jolla, CaliforniaAges Any age - NCT07207876Recruiting
Study of two antibiotics during pregnancy
This study looks at two antibiotics given during pregnancy: ceftriaxone (given as a shot or IV) for infections other than syphilis, and benzathine penicillin G (given as a shot) for syphilis. The goal is to learn more about how these medicines affect pregnant women and their babies.
Los Angeles, CaliforniaAges Any age - NCT06535789RecruitingPhase 2/Phase 3
Inhaled insulin vs injections for gestational diabetes
This trial compares an inhaled insulin (Afrezza) to insulin injections for managing blood sugar after meals in women with gestational diabetes. The goal is to see if the inhaled option works as well and is easier to use.
Santa Barbara, CaliforniaAges 18–40 - NCT06628453Recruiting
Continuous glucose monitor for type 2 diabetes in pregnancy
This study tests whether using a CGM (a small sensor that tracks blood sugar) can help manage type 2 diabetes during pregnancy better than standard care. It is for women who have type 2 diabetes and are pregnant with one baby.
San Diego, CaliforniaAges 18–50 - NCT06468202RecruitingPhase 4
Aspirin dose study to prevent high blood pressure in pregnancy
This trial compares two doses of aspirin to see which is better at preventing conditions like preeclampsia (a serious form of high blood pressure during pregnancy). You may qualify if you are in early pregnancy and have certain risk factors.
Los Angeles, CaliforniaAges 14–35 - NCT05264779Recruiting
Decision help tool for very early delivery planning
This study tests a decision-support tool (a structured way to guide conversations) for parents facing a high risk of delivering very early (about 22–26 weeks). It may help you and your baby’s care team make clearer, more aligned choices about neonatal (newborn) treatment.
San Diego, CaliforniaAges 18 years+ - NCT05035160Recruiting
Join a pregnancy tissue and sample study for research
This study collects and stores samples from pregnancy, birth, or after delivery to help researchers learn from perinatal health information. It may help future care by building a high-quality repository of biospecimens and related data.
Los Angeles, CaliforniaAges 1 minute+ - NCT04109846Recruiting
Embryo transfer using aneuploid or mosaic embryos during pregnancy
This trial looks at pregnancy and baby outcomes when embryos that have chromosome differences (aneuploidy or mosaic embryos) are transferred, especially when no other embryos are available. It may help people understand the risks and expected outcomes in situations where options are limited.
Sunnyvale, CaliforniaAges 18–55 - NCT03992729Recruiting
Study tracking pregnancy outcomes after tildrakizumab use
This study follows pregnant people who took tildrakizumab to understand pregnancy outcomes and safety. It also compares them with pregnant people with the same underlying disease who did not take tildrakizumab during this pregnancy.
San Diego, CaliforniaAges Any age - NCT04933552Recruiting
Safety study of Mayzent during pregnancy for babies
This study follows pregnant people with multiple sclerosis (MS) who took Mayzent (siponimod) to understand safety for pregnancy outcomes. It compares them with other groups to see whether there are any differences in birth results.
La Jolla, CaliforniaAges Any age - NCT07792837Recruiting
Online intuitive eating program for pregnant women with obesity
This study tests an online program that helps pregnant women with obesity learn to eat intuitively, which means listening to their body's hunger and fullness signals instead of dieting. The goal is to support their well-being during pregnancy.
San Diego, CaliforniaAges 18 years+ - NCT07560553Recruiting
Teaching Mothers How to Breastfeed Successfully
This study tests whether special breastfeeding education classes help pregnant women prepare to breastfeed their babies. Researchers want to see if learning from healthcare providers before birth makes breastfeeding easier and more successful.
Loma Linda, CaliforniaAges 18–45 - NCT07557303Recruiting
Understanding Prenatal Screening Decisions During Pregnancy
This study helps pregnant people make informed choices about genetic screening tests by providing clear, timely information. Researchers want to learn the best way to explain screening options so you can decide what's right for you and your family.
San Francisco, CaliforniaAges 18 years+ - NCT07449039Recruiting
Blood sugar tracking after pregnancy for diabetes risk
This study uses a continuous glucose monitor to track blood sugar for 2 weeks after delivery in women who had gestational diabetes. The goal is to better understand who develops type 2 diabetes later and help prevent it.
Los Angeles, CaliforniaAges 18 years+ - NCT07293559Recruiting
Understanding infant feeding choices in women with HIV
This study looks at how women with HIV decide whether to breastfeed, and what support they get from healthcare providers and family. It aims to learn about their experiences and needs.
Los Angeles, CaliforniaAges Any age - NCT07279311Enrolling by invitation
Virtual reality for depression during high-risk pregnancy
This study tests if virtual reality (VR) exercises can help reduce depression symptoms in pregnant people who must stay in the hospital for at least 3 weeks due to complications. If you are feeling down and are able to use VR, this treatment might offer a new way to feel better.
Palo Alto, CaliforniaAges 18 years+ - NCT06340152Recruiting
Studying maternal health after preeclampsia
This trial follows women who have had preeclampsia to learn more about their health after pregnancy. It collects blood and tissue samples to find markers that could improve future care.
San Diego, CaliforniaAges 18–50 - NCT07176793Recruiting
Breastfeeding support after gestational diabetes
This study tests a breastfeeding support program for people who had gestational diabetes during pregnancy. The goal is to see if this support helps them breastfeed longer and stay healthy.
Sacramento, CaliforniaAges 18 years+
Pregnancy trials by city in California
Where these studies are running in California
Institutions with a site for the recruiting pregnancy studies listed above.
- University of California, San Francisco · 3 studies
- Afshar Lab, Department of Obstetrics & Gynecology, UCLA
- Cedars-Sinai Medical Center
- Christina Chambers
- David Geffen School of Medicine at UCLA (CRS 5112)
- Loma Linda University Faculty Medical Offices
- Lucile Packard Children's Hospital Stanford
- Novartis Investigative Site
What taking part in a pregnancy study involves
A screening visit first
Before anything else, the study team checks whether you fit — usually a visit with some tests. You can stop at any point, and screening is typically free.
Care at a nearby site
Study visits happen at a clinic or hospital taking part. Many studies cover the cost of the study treatment and related visits, and some reimburse travel.
You stay in control
Taking part is voluntary and you can leave a study at any time, for any reason, without affecting your regular care.
The team decides eligibility
Our fit check is a helpful first read, not a decision. The study team makes the final call after reviewing your health history.
Pregnancy trials in other states
Common questions
- Are there pregnancy clinical trials in California?
- Yes. We're currently tracking 49 recruiting pregnancy studies with a site in California, each rewritten in plain language so you can see what it's testing and who it's for.
- How do I find out if I qualify for a pregnancy study in California?
- Each study lists its eligibility rules — age, diagnosis, prior treatments. On every trial page we explain these in plain language and offer a short, optional pre-screen for a fit read. The study team makes the final decision.
- Do I have to live in California to take part?
- Not necessarily. These studies have a site in California, but eligibility is about your health, not your address — some people travel to take part, and a few studies reimburse travel. The study team can tell you what's required.
- Does it cost anything to join a pregnancy trial?
- Using Clin2 is always free. Many trials cover the study treatment and related visits; some reimburse travel. The study team explains exactly what's covered before you decide.
Not the right time?
New pregnancy studies open in California regularly. Set up a health profile and we’ll quietly watch for studies that fit you and email you when one opens.
Clin2 helps you find and understand clinical trials and does not provide medical advice. Study data comes from ClinicalTrials.gov. Talk with your doctor about whether a specific trial is right for you.