Clinical trials
Phenotype clinical trials
Below are recruiting phenotype clinical trials, each written for real people, not researchers. We’re tracking 315 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT04296071Recruiting
Testing blood markers after heart surgery in infants
This trial studies patterns in immune cells (neutrophils) in very young children who undergo heart surgery using a heart-lung machine. The goal is to better understand and potentially reduce lung injury after surgery.
Boston, MassachusettsAges Up to 1 year - NCT04323371Recruiting
Study testing for heart-shock to reduce future events
This trial studies how to identify different types of “cardiogenic shock,” a serious drop in heart blood flow. It aims to use detailed patient information to guide care and possibly lower the chance of dangerous outcomes.
MilanAges 18–74 - NCT04359394Recruiting
Rare severe pustular psoriasis family DNA study network
This study builds a large international registry of people with rare, severe pustular psoriasis to help doctors understand the genetics of the condition. You may be asked for information and, if you have eligible family members, DNA testing to learn how the disease runs in families.
MünchenAges 6 months+ - NCT04375631RecruitingPhase 1
Study of chemo plus donor stem cell transplant for blood cancers
This Phase 1 trial tests a specific chemotherapy plan followed by a reduced-intensity donor stem cell transplant for people with relapsed or treatment-resistant acute myeloid leukemia (AML), certain myelodysplastic syndromes (MDS), or chronic myelomonocytic leukemia (CMML). It may help by using donor stem cells to rebuild the bone marrow after intensive cancer treatment, in people who are not responding well to standard therapies.
Seattle, WashingtonAges 18 years+ - NCT04427462Recruiting
Study of energy balance and heart health in children
This study looks at how children’s “energy use” relates to heart and metabolism health. It may help doctors understand what healthy and unhealthy patterns look like in kids.
Little Rock, ArkansasAges 8–10 - NCT04477785Recruiting
Study to track Parkinson’s signs using imaging, spinal fluid, and genes
This study is building a large, detailed group of people—some with Parkinson’s and some at higher risk—to understand early changes over time. It uses brain imaging (DaTscan SPECT), sometimes spinal fluid tests (lumbar puncture), and genetic information to help researchers better measure disease and develop future treatments.
Birmingham, AlabamaAges 30 years+ - NCT04706988Recruiting
Asthma study linking lung bacteria to asthma types
This study looks at the tiny germs in your airways (airway microbiota) to better understand different asthma “types” and what might drive symptoms. It may help researchers find more personalized approaches to asthma care by learning how lung bacteria relate to your asthma features.
ShatinAges 18 years+ - NCT04726241RecruitingPhase 1/Phase 2
Testing blood and bone marrow samples in young leukemia patients
This trial looks at blood and bone marrow samples from children and teens whose leukemia has come back or is hard to treat. The goal is to better understand the disease and guide future options for these patients.
Birmingham, AlabamaAges Up to 22 years - NCT04792463Recruiting
BAP1 gene cancer-risk study and family cancer patterns
This study looks at how the BAP1 gene affects cancer risk and what cancers people develop, including within families. You may be able to join if you have a known BAP1-related mutation, a strong family cancer history, or a concerning cancer pattern linked to BAP1.
Columbus, OhioAges Any age - NCT04793867Recruiting
MRI study of lung differences in cystic fibrosis and bronchiectasis
This study uses MRI scanning to better understand how the lungs differ in people with cystic fibrosis (CF) and in people with non-CF bronchiectasis. The results may help doctors understand disease changes over time and guide future care, especially for children and teens.
Cincinnati, OhioAges 5–100 - NCT04872478RecruitingPhase 1
Early-phase drug safety and dosing study for relapsed blood cancers
This Phase 1 trial tests MRX-2843 in teenagers and adults whose leukemia has come back or did not respond to prior treatment. The main goals are to find safe dosing and learn how the body processes the drug.
Atlanta, GeorgiaAges 12 years+ - NCT04902937Recruiting
Testing how added radiation may work by immune and tumor markers
This study looks at people with non-metastatic invasive breast cancer who are getting curative breast surgery followed by planned radiation (sometimes with other anti-cancer medicines). Researchers want to understand whether a patient’s age and certain immune/tumor blood features can predict how well radiation helps.
JenaAges 18 years+ - NCT04923854Recruiting
Study of autism using child data you provide
This study looks at children with autism to understand patterns over time, using information from past and future records. Your involvement could help researchers learn how different needs may show up and change.
ParisAges 1–18 - NCT04934228RecruitingPhase 1
Study targeting inflammation in people with obesity and high blood pressure
This Phase 1 study looks at a treatment aimed at reducing “inflammation patterns” that are common in obesity and insulin resistance. If you meet specific health and lab criteria, you may be asked to visit a research lab and provide blood samples to see how the treatment affects your body.
Kansas City, KansasAges 18–79 - NCT04946773Recruiting
Deep liver testing study for cancer and non-cancer liver disease
This study looks closely at how the liver’s immune system and disease processes work in people with liver problems, including some with suspected or confirmed liver/bile duct cancer. You may also be offered a liver needle sample (FNA) if it’s safe for you.
Oxford, OxfordshireAges 18–75 - NCT04947813Recruiting
Study links Alport genetics to kidney symptoms
This study looks at how specific genetic changes (genotypes) relate to kidney problems and urine blood findings in people with Alport syndrome. It may help doctors predict disease course and tailor care, though it may not involve new treatment.
ShanghaiAges Any age - NCT05027919RecruitingPhase 2
Testing ways to predict opioid withdrawal during a taper
This Phase 2 study looks at what opioid withdrawal looks like in the body and whether they can measure it in a meaningful way. You may join if you have an opioid use disorder, can show physical dependence, and are interested in tapering (gradually reducing) opioids under study care.
Baltimore, MarylandAges 18–65 - NCT05046483Recruiting
Blood sugar study after a new heart attack
This study measures how your body handles sugar and related hormones in people after a new STEMI heart attack, and compares them with people who do not have diabetes or have prediabetes. The goal is to better understand metabolic changes after the event, which could help future care.
Düsseldorf, North Rhine-WestphaliaAges 18–80 - NCT05050383Recruiting
Study testing obstruction patterns to guide CPAP alternatives
This study looks at how breathing passages narrow during sleep to better understand obstruction patterns. It may help people who are being considered for alternatives to CPAP (a common breathing device) for sleep-disordered breathing.
Philadelphia, PennsylvaniaAges 18 years+ - NCT05072483Recruiting
Study of CADASIL’s natural course using blood tests and MRI
This study follows people with CADASIL (a genetic brain blood-vessel condition) to learn how it progresses over time. It uses blood and possibly tissue samples and brain MRI scans to better understand changes in the brain.
Bethesda, MarylandAges 18–100 - NCT05150106Recruiting
Study brain and voice patterns in laryngeal dystonia
This study looks at how the brain and voice system work in people with laryngeal dystonia or voice tremor, and compares them with healthy volunteers. The goal is to better describe different “types” (phenotypes) so future care can be more targeted.
Boston, MassachusettsAges 18–80 - NCT05185609Recruiting
Tests anal function in people with inflammatory bowel disease
This study checks how well the anal area works in people with inflammatory bowel disease (IBD), even when your bowel disease is “in remission” but you may still have symptoms. It may help doctors better understand the cause of ongoing problems and guide future care.
ÖrebroAges 18–65 - NCT05196789Recruiting
Genetic testing to diagnose inherited bone marrow failure
This study looks at patients with suspected inherited (families-linked) bone marrow failure to better understand the cause using genetic testing. It may help confirm a diagnosis and refine how different inherited conditions are classified.
Melbourne, VictoriaAges 3 months+ - NCT05229666Recruiting
Study stress patterns in early pregnancy and preterm birth risk
This study looks at how stress shows up in the body during early pregnancy and whether it’s linked to preterm birth (birth before 37 weeks). You may be asked about your stress and health to help researchers understand who is at higher risk.
New York, New YorkAges 18 years+
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Common questions
- Are there clinical trials for phenotype?
- Yes. Clin2 currently lists 315 recruiting phenotype 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 phenotype 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 phenotype 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.