Clinical trials · California
Time Restricted Eating clinical trials in California
We’re tracking 12 recruiting time restricted eating studies with a site in California — including Early Phase 1, Phase 1 and Phase 2 studies, each written for real people, not researchers.
Recruiting studies in California
- NCT06884059RecruitingPhase 1
Time-restricted eating for people with early kidney signs
This study tests whether eating only during a certain window each day helps people with type 2 diabetes and small amounts of protein in their urine (a sign of early kidney stress) improve their health. You'll use a smartphone app to log your meals and follow a daily eating schedule.
La Jolla, CaliforniaAges 18–75 - NCT04722341Recruiting
Time-limited eating for people with certain breast or rectal cancers
This study tests whether eating only within a shorter daily time window can improve cancer outcomes in people with specific breast or rectal cancers. It also looks at how this affects the body (such as metabolism) and who is most likely to benefit.
West Hollywood, CaliforniaAges 18 years+ - NCT05740254Recruiting
Compare early versus late eating times for teen obesity
This study tests whether having a shorter daily eating schedule earlier in the day works better than a later eating schedule for reducing weight and improving health in teens with obesity. Participants will also follow planned fasting (not eating) periods and complete regular check-ins.
Los Angeles, CaliforniaAges 12–21 - NCT06047496RecruitingEarly Phase 1
Time-restricted eating for sleep apnea
This study tests whether limiting your eating to a shorter daily window can improve health in people with untreated moderate to severe sleep apnea. You would eat all your meals within a set number of hours each day while tracking your progress on your smartphone.
La Jolla, CaliforniaAges 18–70 - NCT06188754Recruiting
Healthy lifestyle program for bipolar disorder and sleep issues
This study tests a healthy lifestyle program (including diet changes) for people with bipolar disorder who have sleep problems. It aims to improve sleep and overall well-being by teaching new habits.
Berkeley, CaliforniaAges 18–65 - NCT06548191RecruitingPhase 1
Time-Restricted Eating for Alzheimer's Disease
This study tests whether a time-restricted eating schedule (eating all meals within a 10-hour window each day) can improve memory and thinking in people with early Alzheimer's disease or mild cognitive impairment. Healthy partners of people with memory problems can also join as a comparison group.
San Diego, CaliforniaAges 60 years+ - NCT06555406Recruiting
Healthy lifestyle study for bipolar disorder with sleep issues
This study tests a healthy lifestyle program for people with bipolar disorder who have sleep or schedule problems. It aims to see if changing daily habits can help improve mood and sleep.
Berkeley, CaliforniaAges 18–65 - NCT06824974Recruiting
Time-restricted eating for liver disease or cancer
This study tests whether combining time-restricted eating with healthy eating helps people with metabolic liver disease, cirrhosis, or early-stage liver cancer. If you are overweight and currently fast less than 12 hours at night, this diet approach might improve your health.
La Jolla, CaliforniaAges 18 years+ - NCT06891352Recruiting
Timing meals to reduce disease risk in night shift workers
This study tests whether adjusting when you eat (time-restricted eating) can improve health in night shift workers. You would use a smartphone app to track your meals and follow a set eating schedule for up to a year.
La Jolla, CaliforniaAges 18–70 - NCT07189234RecruitingPhase 2
Time-restricted eating for better heart health
This trial tests if eating all your meals within a shorter window each day can improve blood sugar, blood pressure, and cholesterol. You may qualify if you have prediabetes or metabolic syndrome and eat over 12 hours daily.
La Jolla, CaliforniaAges 18–75 - NCT07490782Recruiting
Nutrition study for college students with depression
This trial tests whether changes in diet can help improve mild to moderate depression in college students. If you are currently getting treatment or are open to it, you may be able to join.
La Jolla, CaliforniaAges 18 years+ - NCT07202247RecruitingPhase 2
Improving heart health in prostate cancer patients on hormone therapy
This study tests whether combining a time-restricted eating plan, a heart-healthy diet, and a weight-loss medication (GLP-1 receptor agonist) can help improve heart health and weight in men with prostate cancer who are receiving hormone therapy. It aims to reduce the risk of heart problems caused by hormone treatment.
Duarte, CaliforniaAges 30–79
Time Restricted Eating trials by city in California
Where these studies are running in California
Institutions with a site for the recruiting time restricted eating studies listed above.
- Altman Clinical and Translational Research Institute · 3 studies
- University of California San Diego Health · 3 studies
- University of California, Berkeley · 2 studies
- Cedars-Sinai Medical Center
- Children's Hospital Los Angeles
- City of Hope Comprehensive Cancer Center
- Shiley-Marcos Alzheimer's Disease Center
What taking part in a time restricted eating 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.
Common questions
- Are there time restricted eating clinical trials in California?
- Yes. We're currently tracking 12 recruiting time restricted eating 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 time restricted eating 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 time restricted eating 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 time restricted eating 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.