Clinical Research Directory
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199 clinical studies listed.
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Tundra lists 199 Healthy Participants clinical trials. Each listing includes eligibility criteria, study locations, and direct links to research sites in the Tundra directory.
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NCT07166471
Global Reference Ranges - Singapore
We aim to undertake the Global Reference Range Study (GRR) to establish a set of healthy adult reference values for measures of fibroinflammation, fat and size/volumes for the liver, and other abdominal and thoracic organs to assess, compare, and if necessary, propose ethnicity specific reference ranges for these measurements.
Gender: All
Ages: 18 Years - Any
Updated: 2026-07-15
NCT06980428
A Study to Investigate Safety, Tolerability, Pharmacokinetics, and Pharmacodynamics of AZD4954 in Healthy Adult Participants With or Without Elevated Lipoprotein (a) (Lp[a]) Levels, and Participants With Dyslipidemia
The purpose of the study is to evaluate the safety, tolerability, pharmacokinetics (PK), and pharmacodynamics (PD) of single and multiple ascending doses of AZD4954 in healthy participants with or without elevated Lipoprotein(a) (Lp\[a\]) levels and participants with dyslipidemia.
Gender: All
Ages: 18 Years - 70 Years
Updated: 2026-07-13
4 states
NCT07643272
A Study on the Effect of Food and Proton Pump Inhibitor on the Pharmacokinetics of HMPL-760 Capsules
This is a single-center, open-label, randomized, four-period, six-sequence study with a planned enrollment of 24 healthy participants. The study consists of a screening period, a dosing period (Cycles 1, 2, 3, and 4), and a follow-up period. Screening must occur within 14 days prior to the first dose of study drug. Enrolled participants will be randomly assigned to one of 6 dosing sequences in the ratio of 1:1:1:1:1:1 to complete Cycles 1-3 dosing to evaluate the effect of different types of food on the PK of HMPL-760, and then to receive rabeprazole and HMPL-760 in Cycle 4 to assess the effect of PPI on the PK of HMPL-760 (see dosing sequence table for details).
Gender: All
Ages: 18 Years - 45 Years
Updated: 2026-07-13
1 state
NCT07444424
A Study to Investigate the Effect of AZD5004 on Mitiglinide and Pioglitazone in Healthy Participants
The purpose of the study is to assess the effect of AZD5004 on the pharmacokinetics (PK) of mitiglinide and pioglitazone in healthy participants.
Gender: All
Ages: 18 Years - 55 Years
Updated: 2026-07-13
NCT07572474
Correlation Between Pinch Grip and Handwriting in School-Age Children
Background: Good handwriting is an important daily skill for school-aged children, helping them to learn and communicate effectively. While experts believe that fine motor skills of the hand, like the strength of a child's pinch grip, might be important for handwriting, we don't yet fully understand the connection between the two. Purpose: The purpose of this study is to measure the possible relationship between pinch grip strength and handwriting quality in school-aged children. Study Details: This study will enroll approximately 100 children between 9 and 11 years old from physical therapy clinics in Egypt. Participating children will be asked to complete two simple tasks. First, they will be asked to write 10 lines of text. Their handwriting will then be scored using a standardized scale (the Handwriting Legibility Scale). Second, their pinch grip strength will be measured using a specialized mechanical device called a pinch gauge. The investigators will then analyze the data to see if a relationship exists between pinch grip strength and handwriting performance.
Gender: All
Ages: 9 Years - 10 Years
Updated: 2026-07-13
1 state
NCT07170202
The Increasing Mindfulness Engagement Project
The goal of this clinical trial is to examine the feasibility and acceptability of different types of text messages and a integrated gaming app to increase engagement in a mindfulness mobile health application. 1. Does receiving text messages increase engagement in a mindfulness app? 2. Does an integrated gaming app increase engagement in a mindfulness app? Researchers will examine whether participants engage more in a mindfulness mobile health application if they receive text messages and if they engage in additional gaming app on their smartphone. Participants will: 1. Use a mindfulness and gaming mobile health application for 28-days. 2. Complete a pre-study survey, post-study survey, follow-up interview, and 3-month follow-up survey in addition to daily brief surveys.
Gender: All
Ages: 18 Years - 29 Years
Updated: 2026-07-13
1 state
NCT07694843
A Phase I Clinical Trial to Evaluate the Pharmacokinetic and Safety of Ammoxetine Hydrochloride Enteric-Coated Tablets in Participants With Mild Hepatic Impairment, Moderate Hepatic Impairment, and Normal Liver Function
Use these resources to provide understandable information about this study to patients, families, and health care providers:This study is a multi-center, non-randomized, open-label, parallel-group, multiple-dose Phase I clinical trial evaluating the pharmacokinetic characteristics of ammoxetine hydrochloride enteric-coated tablets in participants with mild hepatic impairment (Child-Pugh Class A), moderate hepatic impairment (Child-Pugh Class B), and participants with normal liver function who are matched for age, weight, and gender. Participants in all groups receive 20 mg of ammoxetine hydrochloride enteric-coated tablets daily at 1 hour after meals, from day 1 to day 6. Blood samples for pharmacokinetic (PK) analysis, and safety parameters are collected before and after dosing according to the trial protocol.
Gender: All
Ages: 18 Years - 75 Years
Updated: 2026-07-10
1 state
NCT07348276
First-in-Human Study for the Safety and Evaluation of Two 4R Tau Ligands as Potential PET Radioligands for Imaging Tau Protein in the Brain
This clinical study is being conducted to learn more about two new imaging drugs, called \[18F\]ABBV-964i and \[18F\]ABBV-965i, which are designed to help doctors see changes in the brain related to a condition called Progressive Supranuclear Palsy (PSP). PSP is a rare disease that affects movement, balance, and thinking. These drugs are used with a type of scan called PET (Positron Emission Tomography) to show areas of the brain where a protein called tau builds up. Tau buildup is linked to PSP and other brain diseases. The main goal of this study is to find out if these imaging drugs are safe for people and if they work well to show tau in the brain. The study will also look at how the drugs move through the body and how much radiation they give off. Researchers hope this information will help develop better tools for diagnosing PSP and tracking how it changes over time. Who can join? Adults who are healthy or who have PSP may be able to take part. Participants will have screening tests to make sure they qualify. What does participation involve? People in the study will have PET scans, blood tests, and other safety checks. Some participants will also have an MRI scan. The study is divided into three parts: Part A checks radiation levels in healthy volunteers, Part B looks at how the drugs work in the brain of PSP patients and healthy volunteers, and Part C (optional) repeats scans to see if results are consistent. Why is this important? There is currently no cure for PSP, and better imaging tools could help researchers develop new treatments. By joining this study, participants will help advance research that may improve care for people with PSP and similar conditions in the future.
Gender: All
Ages: 18 Years - 80 Years
Updated: 2026-07-10
1 state
NCT07312851
A Study to Investigate Andexanet Dosing and the Interaction Between Andexanet and Subsequent Enoxaparin in Healthy Participants
The purpose of this study is to characterize andexanet posology and interaction between andexanet and enoxaparin post infusion in healthy participants.
Gender: All
Ages: 18 Years - 55 Years
Updated: 2026-07-09
NCT07448155
A Study to Evaluate the Pharmacokinetics, Safety, and Tolerability of INCA033989 Following Subcutaneous or Intravenous Administration in Healthy Adult Participants
This study is being conducted to evaluate the pharmacokinetics, safety, and tolerability of INCA033989 following subcutaneous (SC) or intravenous administration (IV) n healthy adult participants.
Gender: All
Ages: 18 Years - 55 Years
Updated: 2026-07-08
1 state
NCT07361354
An Ethnobridging TriaL of AGA2118 in Healthy Japanese, Chinese, and Caucasian ParticipantS (ATLAS)
This study will evaluate the effects of a single dose of AGA2118 in Japanese, Chinese, and Caucasian participants
Gender: All
Ages: 18 Years - 65 Years
Updated: 2026-07-08
1 state
NCT07226635
Pharmacokinetic Interaction Trial of Clofutriben With Midazolam and Prednisolone
Drug: 2 single oral doses of midazolam, 2 single oral doses of prednisolone , and clofutriben once daily for 16 days.
Gender: All
Ages: 18 Years - 75 Years
Updated: 2026-07-08
1 state
NCT07071259
Study of the Correlation Between Cortical Excitability and Cytoarchitectonics of Prefrontal Cortex in Healthy Adult Participants, Using Transcranial Magnetic Stimulation Coupled to EEG and High-field MRI
Repeated transcranial magnetic stimulation (rTMS) is mainly used to treat mood disorders by addressing differences in brain function, particularly in the dorsolateral prefrontal cortex (DLPFC), which affects emotions and executive functions. The therapy aims to enhance the left DLPFC or suppress the right. It has been approved for severe major depression in several countries (Canada and Israel since 2002, USA since 2008) and is in the process of being validated in Europe but is not yet reimbursed in France. due to variable results from one study to another and lack of standardization issues. In a previous study, by recording electroencephalographic (EEG) rhythms before and after rTMS treatment of the DLPFC, the investigators showed on a small cohort of patients (n=17) with major or bipolar depression, that the responder patients showed higher EEG theta rhythms in the DLPFC but also and especially in parietal regions. This suggests that the DLPFC is part of the fronto-parietal central executive network (CEN), which is important for working memory and cognitive control. The CEN is not well connected in severe resistant depression, possibly leading to negative emotional bias. The rTMS cure of DLPFC can be interpreted as improving depressive symptoms through the normalization of the CEN by increasing DLPFC excitability and its downward connectivity. However experimental and clinical evidence for this mechanism, among others, is still to be demonstrated, and remission rates of rTMS from DLPFC in drug-resistant depression are still low (20-40%). To improve these response rates to rTMS in DLPFC, it is essential to continue research aimed at improving clinical practices through a better knowledge of the functional neuroanatomy and mechanisms of action of rTMS. This will require the definition of biomarkers allowing in particular to better target the DLPFC, this structure beeing indeed relatively poorly defined on the neuroanatomical level (large portion of the medial frontal gyrus). To this end, the investigators have set up a collaborative research program with Dr. Corey Keller, psychiatrist at Stanford University USA, which was jointly funded in 2022 by the Agence Nationale pour la Recherche (ANR) and the National Institute of Health (NIH) - FrontalProbe project "Probing the dorsolateral prefrontal cortex and central executive network for improving neuromodulation in depression". The ultimate aim of this project is to develop and test different strategies for targeting the DLPFC in the rTMS treatment of pharmaco-resistant depressive patients, following the fundamental neuroanatomical and pathophysiological hypothesis that patients will respond better to therapy if their CEN network is better modulated. This clinical trial will take place in Stanford, USA, in the years 2025-2026. Previously, the investigators are working on the development of methodological strategies aimed at preferentially activating, in a personalized way, the part of the DLPFC that projects onto the PPC. This is the subject of the present protocol, which aims to identify this subpart of the DLPFC to be targeted as a priority for modulating the CEN, through neuroanatomical measurements with high-field MRI and cortical excitability by TMS-EEG in healthy subjects. To this end, the investigators will use a small cohort of healthy subjects who will have one multimodal MRI acquisition session of at 7T and one TMS-EEG session. The 7T MRI data, acquired at the Centre de Résonance Magnétique en Biologie et Médecine (CRMBM), will be used to obtain anatomical markers of the DLPFC. TMS-EEG data, acquired at the Institut de Neurosciences de Systèmes (INS), will be used for cortical excitability measurements of the DLPFC and its projection sites, notably the PPC. At this stage, no data exchange is planned with our American partners. Firstly, the processing of MRI data will include segmentation of gray and white matter, reconstruction of the cortical surface and estimation of the different cortical layers, mainly by monitoring variations in the T1 parameter along the cortical mantle. Other MRI parameters will also be acquired to maximize the specificity of the segmentation of the DLPFC into sub-regions, firstly by identifying the part of the DLPFC that connects preferentially to the PPC using the reconstruction of fiber bundles from diffusion MRI and functional resting MRI. Secondly, during TMS-EEG acquisitions, participants will be stimulated in 3 sub-regions of the DLPFC. For each target, the analyses of the EEG data will focus on quantifying connectivity with the PPC as well as their spectral signature, which is possibly an indirect reflection of the neuronal composition of the stimulated regions. Correlation of 7T MRI and TMS-EEG data will help set optimal DLPFC targeting criteria for PPC activation. The aim is to create an MRI-based targeting procedure for clinical practice. In this sense, TMS-EEG will serve as validation of MRI markers.
Gender: All
Ages: 18 Years - 35 Years
Updated: 2026-07-07
NCT07423598
A Study to Investigate Safety, Tolerability, Pharmacokinetics, and Pharmacodynamics With AZD0780 Following Repeated Dose Administration in Healthy Adults With Elevated LDL-C Levels
The purpose of this study is to evaluate pharmacodynamics (PD) of AZD0780 compared with placebo by assessment of low-density lipoprotein-cholesterol (LDL-C) levels following repeated oral dosing in healthy adults with elevated LDL-C levels.
Gender: All
Ages: 18 Years - 65 Years
Updated: 2026-07-07
1 state
NCT07399951
Washington University WU 409: Immune Responses to Rabies Vaccine.
This study will evaluate the immune response to rabies vaccination persons 18 years and older. We will evaluate thirty healthy participants across three cohorts: 1) standard rabies pre-exposure prophylaxis regimen (two doses of Imovax® or RabAvert® seven days apart with no RIG); 2) rabies pre-exposure prophylaxis regimen + day 0 RIG (two doses of Imovax® or RabAvert® seven days apart, with RIG administered at day 0); 3) rabies pre-exposure prophylaxis regimen + day 28 RIG (two doses of Imovax® or RabAvert® seven days apart, with RIG administered at day 28).
Gender: All
Ages: 18 Years - Any
Updated: 2026-07-02
1 state
NCT06349473
A Study of Safety, Tolerability, Pharmacokinetics, and Pharmacodynamics of SR604 in Two Participants Groups (Part A: Healthy Participants, and Part B: Participants With Hemophilia A or Hemophilia B or Factor VII Deficiency)
The purpose of this study is to evaluate the safety, tolerability, pharmacokinetics (PK), and pharmacodynamic (PD) of SR604 in healthy participants (Part A) and to evaluate the safety, tolerability, PK, PD, and efficacy of SR604 in participants with Hemophilia A or Hemophilia B, or Factor VII (FVII) deficiency, with or without inhibitors (Part B).
Gender: All
Ages: 18 Years - 60 Years
Updated: 2026-07-02
8 states
NCT07241377
A Study in Healthy Adults to Compare the Bioavailability of EPA + DHA From Two Microalgal Sources to One Fish Source and Placebo
This is a randomised, double-blind, parallel, placebo-controlled study in healthy adults to compare the absorption of two microalgal formulations, to a fish oil and a placebo. Participant will take their assigned study product for 6 weeks and attend the clinic for 4 visits.
Gender: All
Ages: 18 Years - 64 Years
Updated: 2026-07-02
1 state
NCT07668167
Combined Regulatory Effects of 40 Hz eTNS and Multisensory Stimulation on Brain Networks
The purpose of this study is to investigate the independent and interactive effects of 40Hz auditory, visual, and external trigeminal nerve stimulation (eTNS) on brain state dynamics and functional connectivity. While 40Hz visual and auditory sensory stimulation have been explored for potential cognitive and therapeutic benefits, the underlying mechanisms on large-scale brain networks and the potential effects of combining multiple modalities remain unclear. This study aims to determine whether multimodal co-stimulation genuinely compounds network-level effects or if targeted dual-pairings are more efficient for brain network reorganization. In this within-subject study, 23 participants will receive all eight possible combinations of 40Hz auditory, visual, and eTNS (targeting the maxillary branch) in a randomized order. Each stimulation condition will last for 5 minutes, separated by 1-minute inter-stimulus intervals. Continuous electroencephalography (EEG) will be recorded throughout the procedures to evaluate brain responses. The collected EEG data will be analyzed using microstate analysis, functional connectivity analysis, and graph-theoretic network analysis. Ultimately, the study seeks to understand how these non-invasive stimulation techniques, independently and together, drive large-scale network reorganization and optimize the balance between local specialization and global integration in the brain.
Gender: All
Ages: 18 Years - Any
Updated: 2026-07-01
1 state
NCT07545226
Comparing the Extent to Which Two Evolocumab Drug Products Are Made Available in the Body After a Single Subcutaneous Dose.
The primary objective of this trial is to evaluate the pharmacokinetics (PK) of two evolocumab drug products in healthy participants.
Gender: All
Ages: 18 Years - 60 Years
Updated: 2026-07-01
4 states
NCT07672652
Effect of Type 2 Diabetes on Biomarker Levels in Albumin Platelet-Rich Fibrin
Diabetes mellitus is a metabolic disease that can negatively affect wound healing and tissue repair. Albumin platelet-rich fibrin (Alb-PRF) is a blood-derived biomaterial used in periodontal and regenerative treatments. It contains growth factors and cytokines that may support tissue healing. The purpose of this study is to evaluate whether type 2 diabetes affects the biological composition of Alb-PRF. For this purpose, Alb-PRF samples obtained from individuals with type 2 diabetes will be compared with samples obtained from systemically healthy individuals. A total of 20 participants will be included in the study: 10 individuals with type 2 diabetes and 10 systemically healthy individuals. Venous blood samples will be collected from each participant, and Alb-PRF will be prepared using a standardized protocol. The prepared samples will be stored at -80°C until laboratory analysis. The levels of interleukin-6 (IL-6), epidermal growth factor (EGF), and insulin-like growth factor-1 (IGF-1) in Alb-PRF samples will be measured using an enzyme-linked immunosorbent assay (ELISA). These markers are related to inflammation, tissue repair, and wound healing. The results will help determine whether type 2 diabetes changes the cytokine and growth factor profile of Alb-PRF.
Gender: All
Ages: 18 Years - Any
Updated: 2026-07-01
1 state
NCT07290283
A Study to Investigate Safety, Tolerability, and Pharmacokinetics of AZD3974 in Healthy Participants
The purpose of this study is to assess the safety and tolerability of AZD3974 and characterize the pharmacokinetics (PK) of AZD3974 following oral administration to healthy participants, including participants of Japanese and Chinese descent.
Gender: All
Ages: 18 Years - 55 Years
Updated: 2026-07-01
2 states
NCT07110610
Phase 1 Single and Multiple Ascending Dose of LTG-321 in Healthy Participants
This is a first-in-human, randomized, double-blind, placebo-controlled Phase 1 single ascending dose (SAD) and multiple ascending dose (MAD) study to evaluate the safety, tolerability, pharmacokinetics (PK), and pharmacodynamics (PD) of orally administered LTG-321 in healthy male and female participants 18 to 55 years of age. The study will be conducted in New Zealand. The study also includes a randomized, double-blind, placebo-controlled, within-participant crossover evaluation of pain tolerance using a cold pressor test in healthy male participants 18 to 55 years of age. In addition, a randomized, open-label, crossover Food Effect cohort will evaluate the impact of a high-fat meal on the pharmacokinetics of LTG-321 following single oral doses in the fed and fasted state.
Gender: All
Ages: 18 Years - 55 Years
Updated: 2026-06-29
NCT07671833
A Study of LY03015 in Healthy Chinese and Caucasian Adult Subjects
This is an open-label, single-dose, parallel-group study to evaluate the safety, tolerability and pharmacokinetic characteristics of LY03015 in healthy Chinese and Caucasian adult subjects. The duration of study will be around up to 42 days for each participant, including up to 14 days of screening period, baseline visit, and a 28-day safety assessment period with a 7-day/6-night stay in the clinical research unit.
Gender: All
Ages: 18 Years - 45 Years
Updated: 2026-06-26
1 state
NCT07544628
A Phase 1 Study of Navlimetostat Tablet Formulations
This study aims to compare the PK of Navlimetostat after administration of a wet-granulation tablet versus the dry-granulation tablet formulation in healthy adult female
Gender: FEMALE
Ages: 18 Years - 55 Years
Updated: 2026-06-24
2 states