Clinical trials
Physiological Responses clinical trials
Below are recruiting physiological responses clinical trials, each written for real people, not researchers. We’re tracking 22 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT07464860Recruiting
Breathwork for older adults after knee surgery
This study tests a breathing exercise program to help older adults recover after knee replacement surgery. Participants practice controlled breathing at home using a smartphone or computer.
Tucson, ArizonaAges 65 years+ - NCT07625358Recruiting
How Caffeine and Alcohol Affect Your Eyes
This study measures how caffeine and alcohol change the size of your pupils (the dark circles in your eyes). Researchers want to understand how these common substances affect your eye's natural responses, which could help with vision and neurological research.
SingaporeAges 30–50 - NCT05238285Recruiting
Study of nonverbal sounds and body responses
This study records nonverbal sounds (like voice and breathing without words) and measures how your body responds. It may help researchers understand links between sound production and physical signals.
Saint-EtienneAges 18–80 - NCT06083766Recruiting
Hormone Therapy Effects on Metabolism in Transgender Adults
This study looks at how long-term gender-affirming hormone therapy affects your body's metabolism and energy use. Researchers want to understand these changes better to improve care for transgender and gender-diverse people.
Rochester, MinnesotaAges 18–40 - NCT07522398Recruiting
Power Training Study for Adults Over 65
This study tests whether short, intense strength exercises can help older adults build muscle and stay stronger. You'll do exercises designed to build power (the ability to move quickly and forcefully) over several weeks, and researchers will measure changes in your strength and daily function.
Diepenbeek, FlandersAges 65–85 - NCT06575738RecruitingPhase 1
Semaglutide for teens after weight-loss surgery
This study looks at how teenagers and young adults respond to weight-loss surgery (sleeve gastrectomy) and whether adding a medication called semaglutide can help improve weight loss. It has two parts: first observing how surgery affects you, then testing if semaglutide helps those who didn't lose enough weight after surgery.
Aurora, ColoradoAges 12–24 - NCT04638452Recruiting
Study of reactions during routine blood tests in autism
This study looks at how people with autism (and some without autism) react during a routine blood test. Researchers will watch and measure behavior and body responses to better understand distress and comfort during needle procedures.
BordeauxAges 6–65 - NCT05252312Recruiting
Study of how nonverbal sounds affect your body
This study looks at how nonverbal acoustic (sound) signals affect normal body responses. You may be able to join if you can complete the sound-related tasks and don’t have conditions that could interfere with hearing or speaking.
Saint-EtienneAges 18–80 - NCT06907225Recruiting
How heat affects soldiers during training
This study measures how your body responds to heat stress during physically demanding military training events. The results may help prevent heat-related injuries in service members.
Fort Novosel, AlabamaAges 18 years+ - NCT06909695Recruiting
Contraceptives and iron in women during extreme environments
This study looks at how different types of long-term birth control affect iron levels and how your body handles extreme conditions like high altitude or temperature changes. You will exercise in a small altitude room for about 6 hours to help researchers understand these effects.
Natick, MassachusettsAges 18–40 - NCT07237022Recruiting
How TRP channels affect diabetic nerve pain
This study looks at how certain channels in your body (TRP channels) might be involved in diabetic peripheral neuropathy (nerve pain from diabetes), using tests on the skin. It may help find new ways to treat nerve pain.
LeuvenAges 18–45 - NCT03049462RecruitingPhase 1
Study how a beta-3 drug changes body fat in healthy adults
This Phase 1 study tests how chronic treatment with a beta-3–type medicine affects brown fat (a special kind of body fat) in the body. It mainly looks at safety and how the body responds over time, which could help future treatments for weight and metabolic health.
Bethesda, MarylandAges 18–40 - NCT06821646Enrolling by invitation
Brain responses in depression and autism with TMS and EEG
This study uses brain stimulation (TMS) and brain wave recording (EEG) to understand how the brain works in people with autism, depression, or both. It may help find better ways to treat these conditions.
TaipeiAges 20–50 - NCT07340385Recruiting
Blood Flow Restriction Training Study for Healthy Adults
This study tests how your body responds to a special exercise technique where blood flow is partly restricted while you work out. It may help people build muscle more efficiently with lighter weights.
Afyonkarahisar, MerkezAges 18–40 - NCT07037017Recruiting
CBT's effects on brain and body in anorexia
This trial studies how cognitive-behavioral therapy (CBT) affects brain activity, stress responses, and attention in people with restrictive-type anorexia nervosa. It may help you understand if this type of therapy changes how your brain works.
IstanbulAges 18–35 - NCT07320209Recruiting
Brain and Body Responses to Virtual Reality Food Cues
This trial uses virtual reality to show you different food cues, like chocolate biscuits or pickles, and measures your brain activity and body responses to understand how these cues affect you. It may help researchers learn more about food cravings and eating behaviors.
Istanbul, MaltepeAges 18 years+ - NCT06573034Recruiting
Standing meditation study for young adults with stress
This study tests if a gentle standing meditation practice (called Daoist Zhanzhuang) can help young adults feel better and handle stress. You would practice for 30 minutes at a time and be followed for a year.
Charlotte, North CarolinaAges 18–25 - NCT05217589Recruiting
Mood and emotions study on eating before exercise
This study looks at how different moods and emotions affect your body’s responses to eating a sports drink before you exercise. You may need to run for 30 minutes and watch/listen to video clips during the study.
Norfolk, VirginiaAges 18–55 - NCT06532474Recruiting
Muscle function study in SMA patients on SMN therapies
This study looks at how muscles work in children and young adults with spinal muscular atrophy (SMA) who are taking or starting SMN-directed therapies (like Evrysdi, Spinraza, or Zolgensma). It aims to understand the body's response to these treatments, which could help improve future care.
Memphis, TennesseeAges 5–20 - NCT07453537Recruiting
Cranberries and stress in healthy multitasking adults
This study tests whether cranberry polyphenols help healthy adults handle stress better during multitasking. You eat a cranberry snack and do computer tasks while your stress is measured.
Gainesville, FloridaAges 30–55 - NCT07781592Enrolling by invitation
Exercise intensity and heat response in young people
This study looks at how exercise intensity affects body temperature in healthy children and young adults. Participants will exercise and may need to swallow a small pill that measures body temperature from inside.
Ottawa, OntarioAges 9–25 - NCT07536659Enrolling by invitation
How Exercise Changes Body Healing Markers in Healthy Men
This study measures special proteins in your blood that show how your body repairs itself after walking or cycling. Researchers want to understand these healing responses in healthy young men.
KocaeliAges 18–35
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Common questions
- Are there clinical trials for physiological responses?
- Yes. Clin2 currently lists 22 recruiting physiological responses 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 physiological responses 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 physiological responses 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.