HEALTHY ADULT PARTICIPANTS

This study looks at whether the type of cement used to attach a zirconia crown to a back tooth affects how well the crown holds up over time. About 110 adults who need a single crown on a back tooth will get either a glass ionomer cement or a resin cement. Researchers will check …

This study tested whether taking 400 mg of magnesium citrate daily for 90 days could improve sleep quality and cognitive function in healthy Saudi adults who reported poor sleep. Researchers compared 41 participants who took the supplement to a control group that took nothing. Th…

This early-stage trial is testing a new drug called BCD-261 in 48 healthy Chinese volunteers aged 18 to 45. The goal is to check if it is safe and how the body processes it. No treatment benefit is expected; this study is purely about safety and dosing.

This study aimed to see if a personalized exercise app (Gingko Active) could improve physical function in adults aged 45 and older better than a standard exercise booklet. The trial was withdrawn before any participants enrolled, so no results are available. The app was designed …

This study looks at how brain cell connections change in young adults aged 18-26. Using PET and MRI scans, researchers will measure the loss of these connections, called synaptic pruning. The goal is to understand normal brain development and help identify abnormal patterns linke…

This study aims to create a Turkish version of a questionnaire that measures how well people notice and evaluate their body from the outside, like sensing touch or judging if you can fit through a narrow space. Researchers will enroll 180 healthy adults who can read and write Tur…

This 30-day study is testing whether a new prebiotic fiber blend is safe and tolerable for healthy adults aged 18 to 60. Participants are randomly assigned to take a low dose, a high dose, or a placebo powder daily. Researchers will track stomach-related side effects and also loo…

This study tests whether personalized digital coaching helps people stick to brain-healthy habits like exercise, diet, and sleep. 120 adults at risk for cognitive decline will be assigned to generic education, a digital platform, or the platform plus health coaching. The goal is …

This early-stage trial in 12 healthy adults looks at how the antifungal drug itraconazole changes the way the body processes Pfizer's experimental drug PF-07248144. Participants take PF-07248144 alone and then again with itraconazole to compare drug levels and safety. The goal is…

This study was designed to test the safety of an experimental drug called GSM-779690T in healthy adults. It was a first-in-human trial with two parts: single and multiple doses. The study was withdrawn before any participants were enrolled, so no results are available.