Clinical trials
Interaction clinical trials
Below are recruiting interaction clinical trials, each written for real people, not researchers. We’re tracking 272 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT00339287Recruiting
Healthy adults donate blood to study bacteria-fighting cells
This study looks at how a person’s immune cells interact with bacterial germs. You’d be screened as healthy and may donate blood (and possibly tissue), with samples stored for future research.
Hamilton, MontanaAges 18–120 - NCT07407569RecruitingPhase 2
HPV vaccine study for women with HPV16
This study tests how HPV antibodies work in urine samples from women with HPV16 before and after they get the HPV vaccine (Gardasil 9). It helps researchers understand how the vaccine protects against HPV.
Antwerp, WilrijkAges 18–45 - NCT05008146RecruitingEarly Phase 1
Brain imaging study for cocaine use disorder interactions
This early-phase study uses brain imaging to understand how cocaine use disorder affects brain function. It may help researchers learn more about brain pathways involved in craving and treatment targets.
Pittsburgh, PennsylvaniaAges 18–55 - NCT07652723RecruitingPhase 1
How a new blood-clotting drug affects clotting with and without aspirin
This study tests an experimental drug (BAY3389934) to see how it affects blood clotting and if it's safe. It is given to healthy adults, alone and then with aspirin. It will help researchers understand how the drug works before testing in patients.
Miami, FloridaAges 18–55 - NCT06037564Enrolling by invitationPhase 4
Switching HIV treatment to a simpler daily pill
This study tests whether switching your current HIV medication to a daily pill with doravirine, dolutegravir, and lamivudine is safe and effective. It is for people whose HIV is well-controlled but who have had to change treatment before because it stopped working.
Aarau, Canton of AargauAges 18 years+ - NCT07439289Recruiting
Turtle help during dental visit to reduce child's anxiety
This study uses a calm, supervised turtle interaction to help children feel less anxious during a routine dental visit. It may be a good fit if your child is ages 6-10, generally healthy, and not afraid of turtles.
Iğdır, IğdırAges 6–10 - NCT07390084Recruiting
How stress and social settings affect drinking decisions
This study looks at how stress and being with others might affect your decision to drink more alcohol. It helps researchers understand what influences drinking in social situations.
Seattle, WashingtonAges 21–50 - NCT07363993Recruiting
Heart flow and pumping in athletes vs. non-athletes
This study uses 3D ultrasound to see how the heart moves blood in people who exercise a lot versus those who do not. It could help understand how regular endurance training changes heart function.
AvignonAges 18–45 - NCT06334315RecruitingPhase 4
Birth control pill study for healthy women
This study looks at how genes affect the way the body processes birth control pills. You take a low-dose pill for one cycle and have blood draws to measure hormone levels.
Aurora, ColoradoAges 18–45 - NCT06805136Recruiting
Community program to reduce loneliness in London
This study tests a community program designed to help people in London build social connections and feel less lonely. If you are an adult aged 20-40 who feels lonely sometimes or often, this program might be a good fit for you.
LondonAges 20–40 - NCT07279831Recruiting
Brain-lung interaction study in acute respiratory failure
This trial looks at how the lung and brain communicate during serious breathing problems. If you are in the ICU with a new breathing issue and need high-flow oxygen therapy, researchers want to study your brain and lung activity together.
ParisAges 18 years+ - NCT05121025Recruiting
Study of stomach bacteria and gut microbes in Helicobacter infection
This study looks at how stomach bacteria (Helicobacter pylori) interact with the normal microbes in your gut. You may be asked to provide tissue, stool, and blood samples to help researchers understand infection and the body’s response.
Freiburg im Breisgau, Baden-WurttembergAges 18 years+ - NCT07276126Recruiting
Enhanced recovery after cesarean and parent-infant bonding
This study tests if a special care plan called ERAS (Enhanced Recovery After Surgery) helps new mothers and fathers bond better with their babies after a planned or medically needed cesarean birth. You will be randomly assigned to standard care or the ERAS protocol to see which leads to stronger early bonding.
IstanbulAges 18–60 - NCT07272200Recruiting
Genes and alcohol in liver cancer: a study
This study looks at how your genes and alcohol use together affect the risk of liver cancer. It may help find ways to prevent cancer in people with fatty liver disease or moderate alcohol intake.
Milan, MilanoAges 45–75 - NCT07279441Recruiting
Cochlear Implants and Listening Effort Study
This study looks at how much mental effort it takes for people with normal hearing or a cochlear implant to listen in different situations. Researchers want to learn how hearing and thinking work together, which could help improve cochlear implant technology.
Waltham, MassachusettsAges 18–80 - NCT06138405Recruiting
Dental training for kids and dentists
This study tests a program to help dental providers and parents interact better with children during dental visits. The goal is to make the experience less stressful and more effective for everyone.
Fayetteville, ArkansasAges 18–99 - NCT06932718Recruiting
Smoking cessation program for Hong Kong workers
This study tests a workplace program to help people in Hong Kong quit smoking. It includes support through instant messaging and check-ins over 12 months.
Hong KongAges 18 years+ - NCT06910267Recruiting
Depression treatment study for older adults in APS
This study tests if a proven depression treatment can help older adults who are involved with Adult Protective Services due to neglect or self-neglect. If you are feeling depressed and have an open APS case, you may qualify.
Houston, TexasAges 65 years+ - NCT06835855Recruiting
Does mother’s depression affect baby’s attention to emotions?
This study looks at how babies of mothers with depression pay attention to emotional faces. Researchers want to learn if these babies show different patterns of attention to happy or sad cues, which could help understand early development.
Binghamton, New YorkAges 6 months+ - NCT06558409Recruiting
Safer Still: Firearm Safety for Families
This study helps parents of teens in mental health crisis make homes safer by addressing firearm storage. You'll get support tailored to your situation.
Columbus, OhioAges 18–90 - NCT06711965Recruiting
Custom molds for breast reconstruction shaping
This trial tests custom 3D-printed molds to help shape breast tissue during reconstruction. It is for people who are already planning a DIEP or TRAM flap after mastectomy.
Houston, TexasAges 18 years+ - NCT06673589Recruiting
Study on brain synchrony during social interaction
This trial looks at how brain activity syncs between people, focusing on those with different levels of social interaction. It may help understand social connection better.
Fairfield, IowaAges 18–50 - NCT06692933RecruitingEarly Phase 1
How hemp affects a common blood thinner
This study tests if a hemp product changes how the body processes the blood thinner clopidogrel (Plavix). You must be healthy, have used cannabis before without problems, and have a specific gene type that affects how these substances break down.
Spokane, WashingtonAges 21–64 - NCT06626139RecruitingPhase 2
Psilocybin study for healthy volunteers
This trial tests how the setting and context affect the experience of psilocybin, a psychedelic drug. It aims to understand how the environment influences the effects in healthy adults.
San Francisco, CaliforniaAges 21–70
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Common questions
- Are there clinical trials for interaction?
- Yes. Clin2 currently lists 272 recruiting interaction 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 interaction 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 interaction 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.