Clinical trials
Morbidity clinical trials
Below are recruiting morbidity clinical trials, each written for real people, not researchers. We’re tracking 208 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT05726786RecruitingPhase 3
Immunonutrition before bladder removal surgery
This study tests whether a special nutrition drink given before open bladder surgery can reduce complications and improve the body’s immune response after surgery. It’s for adults having bladder removal and is compared against standard care.
Lausanne, Canton of VaudAges 18 years+ - NCT05558501RecruitingPhase 1/Phase 2
Intermittent low-oxygen therapy for sleep apnea and health risks
This early-stage study tests a treatment that briefly reduces oxygen during sleep to improve “plasticity,” with the goal of helping people with obstructive or mixed sleep apnea. It also looks at related conditions like high blood pressure and pre-diabetes or cholesterol problems, especially in people who haven’t tried CPAP yet.
Detroit, MichiganAges 30–60 - NCT05242835Recruiting
Study for weight regain after sleeve stomach surgery
This trial studies a specific type of metabolic (weight-related) surgery for people whose sleeve gastrectomy did not lead to enough weight loss or has caused significant weight regain. It may help improve long-term weight and related health problems.
Québec, QuebecAges 18–60 - NCT05618054Recruiting
Explaining nerve signals in teens with POTS
This study looks at how a specific brain–vagus nerve connection works in people with POTS and tries to understand what happens over time. It may help researchers better explain symptoms and other health problems that can occur with POTS.
Richmond, VirginiaAges 12–21 - NCT05521776Recruiting
Early pregnancy screening to reduce complications after high blood pressure
This trial studies whether extra screening in the first trimester for preeclampsia (dangerous blood pressure problems in pregnancy) can reduce health problems for both the mother and baby. You may be offered a screening plan that helps identify risk earlier so care can be adjusted.
AngersAges 18 years+ - NCT05432856Recruiting
Track metabolic health habits during breast cancer treatment
This study follows how “metabolic health” patterns (like eating timing and daily activity) change over time during breast cancer care. It may help researchers learn which habit patterns are linked to better outcomes and comfort during chemotherapy.
Edmonton, AlbertaAges 18 years+ - NCT05305313RecruitingPhase 4
Testing a new propofol dosing method for higher BMI surgeries
This trial studies whether adjusting how propofol (an anesthesia medicine) is dosed based on total body weight improves anesthesia delivery during longer surgeries. It mainly targets people with a higher body mass index having surgery that lasts over an hour.
New Delhi, National Capital Territory of DelhiAges 18–65 - NCT05264051Recruiting
MRI scan to predict outcomes in liver disease
This study looks at MRI images taken as part of routine care to see if they can help predict future health problems in people with liver disease. If you already have an MRI scheduled for clinical reasons, this may help doctors better estimate risk over time.
Chicago, IllinoisAges 18 years+ - NCT05215886Enrolling by invitation
Bariatric surgery and memory problems in people with obesity
This study looks at how bariatric (weight-loss) surgery may affect memory and thinking in people with obesity who already have memory decline or dementia. It may help doctors understand which patients benefit most and what changes to expect.
Sacramento, CaliforniaAges 18–75 - NCT04894838Recruiting
Testing a bypass revision surgery for weight regain
This study looks at whether a specific stomach bypass revision (a “distal gastric bypass”) can improve outcomes after Roux-en-Y gastric bypass when weight loss was not enough or weight was regained. You may be considered if you meet weight-loss goals criteria and can join follow-up and possibly surgery.
Arnhem, GelderlandAges 18–65 - NCT02124499Recruiting
Study links genes to complications after scheduled surgery
This study looks at how certain genetic differences may affect the risk of complications and recovery outcomes after surgery. It may help doctors understand who is more likely to have problems around the time of an operation.
BernAges 18 years+ - NCT04841057Enrolling by invitation
Study of blood and stool changes after weight-loss surgery
This study looks at how your body’s metabolism changes after a specific weight-loss surgery (gastric bypass). It may help researchers better understand what to expect and how to tailor care, while requiring blood draws and stool samples before and after surgery.
Columbia, MissouriAges 18–80 - NCT04626050Recruiting
PTSD and stress support study for healthcare workers
This study looks at psychological distress, including post-traumatic stress disorder (PTSD), in healthcare workers after work-related trauma. You may be eligible if you are an adult healthcare worker with PTSD (and otherwise stable) who can complete regular study check-ins.
New York, New YorkAges 18 years+ - NCT04405700Recruiting
Tracking birth outcomes and birth defects after delivery
This study follows pregnant people and their babies to better measure adverse outcomes and possible congenital (from birth) conditions. It may help improve how birth risks and birth defects are identified and recorded at the clinic.
EldoretAges Any age - NCT04326192Recruiting
Spinal cord stimulation to reduce stubborn back and leg pain
This trial tests whether spinal cord stimulation (a treatment where a device sends mild signals to the spinal cord) can improve persistent nerve-type back and leg pain. It is mainly for adults who are already planning to try spinal cord stimulation but have not tried it before.
Portland, OregonAges 21–70 - NCT04232566Recruiting
Study links in obesity surgery and liver scarring
This study looks at how the immune system relates to liver scarring in people with obesity who are getting gastric bypass surgery. If you qualify, you may help doctors better understand liver disease and who is at higher risk.
Scottsdale, ArizonaAges 30–70 - NCT03868592Recruiting
Weight loss study in people with very high body weight
This trial looks at how to support long-term weight loss and improve how your body handles fat breakdown. It may help people who have severe obesity after bariatric (weight-loss) surgery, but it has several health and lifestyle limits.
Rochester, MinnesotaAges 18–65 - NCT03538457Recruiting
Gastric bypass or sleeve surgery and paracetamol absorption
This study looks at how your body absorbs paracetamol (acetaminophen) after planned weight-loss surgery. It may help doctors better guide pain- and fever-medication dosing after gastric bypass or sleeve gastrectomy.
TrondheimAges 18–70 - NCT03532477Recruiting
Venlafaxine medicine study around weight-loss stomach surgery
This study looks at how the antidepressant venlafaxine is absorbed in the body when people undergo gastric bypass or sleeve gastrectomy. It may help doctors understand whether dosing should change after surgery.
TrondheimAges 18–70 - NCT03535376Recruiting
Studies how valsartan works after bariatric surgery
This study looks at how the blood-pressure medicine valsartan is absorbed and processed in your body after gastric bypass or sleeve surgery. It may help doctors choose safer, more effective dosing after weight-loss surgery.
TrondheimAges 18–70 - NCT03519906Recruiting
Bariatric surgery study measuring how metoprolol is absorbed
This study looks at how metoprolol (a blood-pressure medicine) gets absorbed in the body before and after bariatric weight-loss surgery. If you’re preparing for gastric bypass or sleeve surgery, this may help researchers understand dosing and medicine absorption changes after surgery.
TrondheimAges 18–70 - NCT03692455Enrolling by invitation
Compare two weight-loss surgeries for reflux over 8 years
This study follows people for up to 8 years to see how two different weight-loss surgeries affect ongoing heartburn and acid reflux. You would join only if you were already enrolled in an earlier related study and can complete required follow-up visits and tests.
Passo Fundo, Rio Grande do SulAges 18–78 - NCT03519893Recruiting
Study of blood pressure drug handling after weight-loss surgery
This study looks at how losartan (a blood pressure medicine) moves through the body after gastric bypass or sleeve gastrectomy. It may help doctors better choose and dose blood pressure treatment after weight-loss surgery.
TrondheimAges 18–70 - NCT03517072Recruiting
Study of long-term success after bariatric surgery
This study looks at what helps people do well in the long run after bariatric (weight-loss) surgery. You may be able to join if you had the surgery about five years ago and are willing to participate.
ArrasAges Any age
Hear when a new Morbidity trial opens
We’ll email you when one opens — at most once a week, no account needed, unsubscribe anytime.
Common questions
- Are there clinical trials for morbidity?
- Yes. Clin2 currently lists 208 recruiting morbidity studies from the U.S. registry, each rewritten for real people, not researchers, so you can see what it’s testing and who it’s for.
- How do I know if I qualify for a morbidity trial?
- Each study lists its eligibility criteria — rules about age, diagnosis, and prior treatments. On every Clin2 trial page we explain these in words written for real people and offer a short, optional pre-screen for a fit read. The study team makes the final decision.
- Does it cost anything to join a morbidity trial?
- Using Clin2 is always free. Many trials cover the cost of the study treatment and related visits; some reimburse travel. The study team explains exactly what’s covered before you decide.
Related conditions
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.