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Tundra lists 8 Bioavailability clinical trials. Each listing includes eligibility criteria, study locations, and direct links to research sites in the Tundra directory.
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NCT07880925
Effects of Trigonelline Monohydrate on NAD+ Metabolism, Pharmacokinetics, Safety, and Tolerability in Healthy Adults
This Phase 1 study is designed to evaluate the pharmacokinetic, pharmacodynamic, bioavailability, safety, and tolerability effects of trigonelline monohydrate in generally healthy adults aged 40 to 70 years. Sixty participants will be randomized in a double-blind, parallel-arm study to receive one of four doses of trigonelline monohydrate (equivalent to 150 mg, 300 mg, 450 mg, or 600 mg of trigonelline daily), an active comparator (600 mg nicotinamide mononucleotide \[NMN\]), or placebo for 4 weeks. The primary objective is to assess the effect of trigonelline monohydrate supplementation on NAD+ metabolism by measuring the change from baseline in whole blood NAD+ concentrations after 4 weeks of supplementation. Secondary objectives include evaluation of trigonelline pharmacokinetics, bioavailability, plasma accumulation following repeated dosing, effects on NAD-related metabolites, and urinary excretion of trigonelline and NAD-related metabolites. Safety and tolerability will be assessed through adverse events, vital signs, anthropometric measurements, and clinical laboratory assessments. Exploratory analyses will examine inflammatory biomarkers and additional NAD-related metabolic outcomes.
Gender: All
Ages: 40 Years - 70 Years
Updated: 2026-10-19
1 state
NCT07345130
A Bioequivalence Study of Advil Tablet (Mini) (Ibuprofen 200 mg) Versus Advil Tablet (Ibuprofen 200 mg) in Healthy Adult Subjects Under Fasted Conditions and Bioavailability Assessment of Advil Tablet (Mini) Under Fed Conditions
The purpose of this study is to assess the bioequivalence of Advil Tablet (Mini) (Test Product) to Advil Tablet (Reference Product) under fasted conditions and to characterize the impact of food on the bioavailability of the Test Product under fed conditions.
Gender: All
Ages: 18 Years - 55 Years
Updated: 2026-09-23
1 state
NCT06177483
Enhanced Absorption of curQ+ or Liposomal Curcumin Formulations Versus 95% Curcumin Powder in Healthy Subjects
This study is intended to evaluate how significantly a proprietary curcumin formulation (curQ+® or liposomal curcumin) results in greater GI absorption compared to 95% curcumin extract over a 6-hour time period following a single oral dose in healthy men \& women.
Gender: All
Ages: 18 Years - 75 Years
Updated: 2026-08-07
1 state
NCT05774704
Curcumin and Retinal Study
To test how two weeks of curcumin supplementation would cross the blood brain barrier (BBB) and attach to amyloid beta proteins, to assess the feasibility (safety and bioavailability), and to explore the resulting abundance/composition of gut microbiota.
Gender: All
Ages: 40 Years - 89 Years
Updated: 2026-01-13
1 state
NCT07063173
Bioavailability of Ration Items Containing Tart Cherry Extract
To determine how consuming food items containing shelf-stored tart cherry impacts your body's ability to absorb and use the compounds within tart cherry.
Gender: All
Ages: 17 Years - 39 Years
Updated: 2025-12-29
1 state
NCT06758778
CreNeuroS™️CNS Fish Oil Plus Softgels Compared to Vascepa® Capsules and Deplin® Capsules in a Pharmacokinetic, Single Dose Evaluation on Healthy Adult Human Subjects Under Fasting Conditions
The objective of this study is to evaluate the oral bioavailability of 'CreNeuroS CNS Fish Oil Plus Softgels \[Eicosapentaenoic Acid (as Ethyl Ester) 342 mg; L-5-methyltetrahydrofolate 1.875 mg; other Vitamins and Minerals\] (Test Product) compared with co-administration of Omega-3-acid Ethyl ester 1000 mg Capsules (Reference Product-1) and L-methylfolate Calcium 7.5 mg Capsules (Reference Product-2) in healthy human adult subjects under fasting conditions.
Gender: All
Ages: 18 Years - 45 Years
Updated: 2025-01-23
1 state
NCT06306911
Bioavailability of Aronia Melanocarpa
The main objective of this study is to study the bioavailability and kinetics of acute Aronia Melanocarpa supplementation in healthy young (18-35 years) and older adults (55-75 years) adults. During the test day, participants will ingest a drink consisting of Aronia Melanocarpa extract (AME). The bioavailability and kinetics of AME will be assessed via frequent blood sampling, urine collection, and faecal sampling, in which AME and metabolite profiles will be quantified.
Gender: All
Ages: 18 Years - 75 Years
Updated: 2024-06-13
NCT06427681
An Relative Bioavailability Study of BH006 for Injection in Healthy Subjects
The study is an open label, randomized, balanced, two period, two sequence, crossover, single dose, relative bioavailability study in healthy subjects.Each subject, meeting all the inclusion criteria and none of the exclusion criteria, will receive test product or reference product in a crossover manner based on randomization schedule. A balance between T-R and R-T randomization sequence will be ensured using statistical techniques. Blood samples for PK assessment will be collected prior to and after start of intravenous infusion on Day 1 (Period I), Day 15 (Period II).
Gender: All
Ages: 18 Years - 55 Years
Updated: 2024-05-24