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8 clinical studies listed.

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Bioavailability

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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NOT YET RECRUITING

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

NAD+ Metabolism
Pharmacokinetics
Bioavailability
+1
COMPLETED

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

Bioequivalence
Bioavailability
COMPLETED

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

Bioavailability
RECRUITING

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

Bioavailability
Gut Microbiome
Safety
RECRUITING

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

Bioavailability
ENROLLING BY INVITATION

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

Bioavailability
RECRUITING

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

Bioavailability
Kinetics
NOT YET RECRUITING

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

Bioavailability