Clinical Research Directory

Effect of Magnesium Supplementation on Sleep Quality and Cognitive Function in Saudi Adults

The goal of this clinical trial was to evaluate whether magnesium citrate supplementation improved sleep quality and cognitive function in healthy Saudi adults. It also assessed the effects of magnesium on selected blood markers. The main questions it aimed to answer were: Did magnesium supplementation improve sleep quality? Did magnesium supplementation improve cognitive function? Researchers compared participants who received magnesium citrate to a control group that did not receive any intervention to evaluate its effects. Participants: Took magnesium citrate (400 mg daily) for 90 days (two capsules: one in the afternoon and one 1-2 hours before bedtime) Visited Umm Al-Qura University twice (before and after the intervention) for: Sleep quality assessment Cognitive function assessment Blood sample collection to measure serum magnesium and HbA1c The control group did not receive any supplementation during the study period.

Examining Olive Oil Extract on Knee Comfort and Function

The goal of this study is to learn if an olive oil extract works to improve knee pain and discomfort in adults. The main questions it aims to answer are: 1) Does the olive oil extract improve the perceptions of knee pain and discomfort, and 2) Does the olive oil extract improve knee function in adults? The main procedures in the study include: * Screening and informed consent * Take one assigned study capsule (supplement or placebo) daily with food for 6 weeks * Complete digital questionnaires about your knee pain, stiffness, and function at scheduled times * Complete a Day 1 acute assessment and two simple functional movement tests at home as described below * If possible, connect a compatible wearable device to allow collection of sleep and physical activity data as detailed below. * Collect saliva samples at home using a provided kit at designated timepoints * Record any pain medications taken during the study or any side effects

A Study to Evaluate the Safety of Increasing Doses of DF5112 in Healthy Adults

This is a double-blind, randomized, placebo-controlled, single ascending dose (SAD) study to evaluate safety, tolerability, pharmacokinetics (PK), immunogenicity and pharmacodynamics (PD) of DF5112 in healthy adult participants. A total of 48 participants are planned to be randomized into 6 cohorts. Additional cohorts at intermediate dose levels may be evaluated. Each cohort will include 8 healthy participants randomized to receive DF5112 or placebo through intravenous (IV) or subcutaneous (SC) administration. Following dose administration participants will be confined at the clinical research unit for observation for approximately 1 week and then will return for subsequent pre-identified follow up visits through Day 29.

Effect of Early Time-Restricted Eating on Appetite, Appetite-Regulatory Hormones and Energy Intake.

This randomised crossover study's primary aim is to investigate the effect of short-term fasting (eTRE) on subjective appetite and appetite-regulatory hormones (i.e., leptin, adiponectin, total glucagon-like peptide-1 (GLP-1), gastric inhibitory polypeptide (GIP), total peptide YY (PYY), acylated ghrelin and Insulin). In addition, to examine if the one-day early time-restricted eating influences energy expenditure and ad libitum energy intake in the periods following the standard meal test. The researchers will compare normal eating with early Time-Restricted Eating (eTRE) in healthy men.

Study on the Mass Balance of [14C]HRS-9190 for Injection in Healthy Participants

To evaluate the absorption, metabolism and excretion after a single intravenous bolus of \[14C\]HRS-9190 in healthy Participants

A Study to Evaluate the Safety, PK, and Immunogenicity of Recombinant Human Hyaluronidase in Healthy Subjects

The study is being conducted to evaluate the safety, pharmacokinetics, and immunogenicity of recombinant human hyaluronidase in healthy Chinese adult male subjects.

Effects of Dual-Source Carbohydrate Intake and Liver Glycogen Repletion After Overnight Fasting.

This study is looking at whether eating a breakfast which has two different sources of carbohydrates, glucose and fructose (found in foods like honey and fruits), can increase how much glycogen can be stored in the liver. Glucose is a type of sugar that the body uses to provide energy during exercise. When it is not circulating in the blood, it is stored in the muscles and liver. The stored version of glucose is often referred to as glycogen. When the body needs energy, for example, it will break down glycogen into glucose so that it can be used as fuel. Muscle and liver glycogen stores are vital in providing energy during prolonged exercise, and strenuous activity can rapidly deplete these stores, leading to increased fatigue and a decline in performance. Liver glycogen, however, is particularly important because it controls blood glucose levels. This is important because the brain and other organs are constantly relying on the supply of glucose to function properly. When sleeping, the body goes through a natural period of fasting. During this period, the liver gradually breaks down its glycogen stores to release glucose into the bloodstream. Because of this, following sleep, liver glycogen stores are automatically low (which is why having breakfast is important). There is research to suggest that eating a high-carbohydrate breakfast can prevent further declines in liver glycogen; however, it is not known if eating different types of carbohydrates within the breakfast (glucose and fructose together) will affect the liver's ability to store glycogen. This research will aid in understanding optimal ways to increase liver glycogen stores before performing exercise, which may influence exercise performance. Therefore, the main aim of this study is: 1\. Investigate whether a high fructose breakfast will increase liver glycogen storage To achieve this, participants will be recruited to complete a randomised crossover study where they will undertake three different conditions. All laboratory trials will take place at the Manchester Metropolitan University Institute of Sport. 1. No breakfast (Control) 2. 3 g/kg of body mass of carbohydrate (of which contains 0% fructose) 3. 3 g/kg of body mass of carbohydrate (of which contains50% fructose) Liver glycogen stores will be measured using magnetic resonance imaging (MRI) and magnetic resonance spectroscopy (MRS). The investigators will measure liver glycogen content, liver volume, and stomach volume. Blood samples will also be taken to measure different metabolic hormone responses.

Oxytocin's Effects on Emotional Processing and Its Acting Routes

The main goal of this study is to investigate the modulatory effects of intranasally administrated oxytocin on the processing of emotional stimuli and its acting routes.

Single-ascending Dose Study of HEC-151 Injection

Evaluate the safety, tolerability, PK/PD and immunogenicity characteristics of a single subcutaneous HEC-151 Injection solution in healthy participants

Effect of Vitamin D and Branched-chain Amino Acids on Physical Performance and Biomarkers of Muscle Fatigue in Runners

Muscle fatigue caused by physical training is understood as a condition related to the inability to maintain action potential, derived from the alteration in skeletal muscle homeostasis. In long-distance recreational runners, prolonged physical work is performed while maintaining the level of intensity, where a level of fatigue intervenes, which overlaps and generates tiredness to execute the movement continuously. In the last 10 years, sports supplementation has been explored as an aid to increase physical performance, improve muscle recovery and prevent sports injuries.

Effect of Antifungals on the Intestinal Microbiome - a Randomized, Controlled, Proof-of-concept Trial

The goal of this clinical trial is to learn how the antifungal drug fluconazole affects the gut microbiome and immune system in healthy volunteers. The main questions it aims to answer are: * Does fluconazole change the gut bacteriome and mycobiome composition after 14 days of treatment? * How long do these changes last (4 weeks and 6 months after treatment)? * Does fluconazole affect the body's immune responses, such as blood cell activity and antifungal antibodies? Researchers will compare two groups: participants who take fluconazole for 14 days and participants who receive no intervention. Participants will: * Either take one fluconazole tablet (200 mg) daily for 14 days, or receive no treatment * Provide stool samples and blood samples at several timepoints * Return for follow-up visits up to 6 months after treatment This study is conducted at Amsterdam UMC, location AMC, with a planned enrollment of 50 healthy male volunteers aged 18-35 years.

A Study to Assess the Pharmacokinetics of GEn-1124 After Single Oral Dosing in Healthy Subjects

The goal of this clinical trial is to determine the pharmacokinetics (how the body interacts with administered substances for the entire duration of exposure) of Gen-1124 in an oral formulation (taken by mouth) in healthy volunteers. It will also learn about the safety of Gen-1124. The main questions it aims to answer are: \- How does Gen-1124 interact with a human body? Researchers will look at how Gen-1124 interacts with the body and what side effects it may cause. Participants will: * Take Gen-1124 for a single dose * Remain in clinic for 2 days for checkups and tests * Recieve a phone call for a checkup 3 and 7 days after the single dose

Comparative Study of EnliTuo® Before and After Technology Change in Healthy Male Volunteers

This study is a randomized, double-Blind, parallel-controlled, single-dose pharmacokinetic, safety, and immunogenicity comparative study of EnliTuo® before and after technology change in healthy male volunteers.

A Study of Pharmacokinetics, Safety, and Immunogenicity of BCD-057 100 mg/mL, BCD-057 50 mg/mL, and Humira 100 mg/mL in Healthy Subjects

The aim of this study is to establish comparability of pharmacokinetic parameters and similarity of the safety and immunogenicity profiles of single subcutaneous doses of BCD 057 100 mg/mL and BCD-057 50 mg/mL, as well as BCD-057 100 mg/mL and Humira 100 mg/mL, in healthy subjects. The study is conducted in a population of healthy male subjects aged 18-45 years inclusive at the time of signing the ICF, with a body mass index in the range of 18.5 to 30.0 kg/m2.

The Effect of Oral Oxytocin and Atosiban on Top-down Attention ( OTAtosiban )

The main aim of the present study is to investigate whether orally (lingual spray) administered oxytocin influences human top-down attention via oxytocin receptors and whether its effects are dose- and task-dependent.