View clinical trials related to Biological Availability.
Filter by:The evaluation of protein quality has been identified as the top priority question by the Food and Agricultural Organization (FAO) of the United Nations. However, the current available methods do not precisely estimate protein quality, or need invasive procedures. The proposed 'dual tracer approach' is a non-invasive method to evaluate protein quality in humans. The present project characterizes the use of 15N-intrinsically-labelled milk protein as a reference-protein for development a non-invasive method that can be used to assess protein quality in human subjects
The objectives will be to evaluate the dose-response between the amount of soybean oil in salad dressing and the absorption of: 1) carotenoids, phylloquinone, and tocopherols in salad vegetables; 2) retinyl palmitate formed from the provitamin A carotenoids, alpha- and beta-carotene.
Mastiha is a natural product from the tree Pistacia lentiscus var. Chia (Anacardiaceae) growing exclusively in the Southern part of Chios Island. It is the natural resinous exudate produced after longitudinal incisions made at close intervals from the base of the trunk up to the thicker branches of the tree. U.S. Food and Drug Administration has classified Mastiha as GRAS. Previous research demonstrates Mastiha's safety, as well as anti-inflammatory, antimicrobial and antioxidant properties. In addition, the European Medicine Agency has recently recognized Mastiha as a natural medicine and classified it to the category of traditional herbal medicines in diarrhea problems, mild dyspeptic disorders, skin inflammation and healing (EMA/HMPC/46758/2015). However, the bioavailability of its microconstituents in human biological samples is still undetermined. To this end, the current study aims to investigate the whether Mastiha's compounds are bioavailable in healthy adults. Twenty apparently healthy men, aged 20-40 years old, will be enrolled based on certain inclusion and exclusion criteria. The staff of the study will provide detailed information regarding the aims, the methods, anticipated benefits and potential hazards of the study and all patients will receive the Patient Information Leaflet (PIL). Ample time (48 hours) will be provided in order to decide whether they want to participate in the protocol. Each patient agreeing to participate will sign an Informed Consent document and the staff will explain to patients that they are under no obligation to enter the trial and that they can withdraw at any time during the trial, without having to give a reason. A copy of the signed Informed Consent will be given to the participant. After enrollment, the volunteers will undergo a medical and dietary assessment and their health status will be evaluated through a complete blood count. Then, they will follow a low-phytochemical diet for five days, meaning that they will exclude fruits, vegetables, legumes, coffee, tea, alcoholic beverages and chocolate. On the day of the experiment and after overnight fasting, the volunteers will consume 10g of natural Mastiha and blood samples will be obtained on timepoints 0h, 30min, 1h, 2h, 4h, 6h and 24h after Mastiha intake. Until timepoint 6h, they will be allowed to consume only water. Urine samples will also be collected on timepoints 0h, 4h, 8h and 24h. After collection, the phenolic and terpenoid content or metabolites of Mastiha will be identified in plasma samples applying LC-HRMS. Additionally, the metabolomic profile will be assessed in plasma samples with LC-HRMS and in urine samples with NMR-based metabolomics. Oxidative stress will be evaluated through the CuSO4 technique and oxidised LDL levels in serum samples, as well as F-2 isoprostanes in urine samples.
The primary objective of the study is to • Investigate the relative bioavailability of sorafenib as 400 mg (4 x 100 mg) tablet for oral suspension formulation in comparison to 400 mg (2 x 200 mg) marketed tablet formulation. The secondary objectives of this study are to - Evaluate the dose proportionality in sorafenib pharmacokinetics for sorafenib tablet for oral suspension formulation after administration of 200 mg (2 x 100 mg) and 400 mg (4 x 100 mg) dose of sorafenib in fasted state - Evaluate the effect of food on the pharmacokinetics of the tablet for oral suspension formulation after administration of a single dose of 400 mg sorafenib (4 x 100mg) - Evaluate the taste and palatability of sorafenib (both formulations) - Assess the safety and tolerability of sorafenib tablet for oral suspension in healthy male subjects
The study will evaluate the relative bioavailability of Pronovum PRF-037 and Pronovum PRF-041 with PronovaPure 150:150 EE EU and Eskimo-3 (500 mg omega-3 acid triglyceride containing 80 mg EPA and 50 mg DHA per gram oil) in healthy subjects.
Rivaroxaban is a substance developed for use in the treatment of blood coagulation disorders. Thrombosis (blood clots) can occur as a result of excessive coagulation activity in the blood vessels. Excessive coagulation activity can occur in children as well, and rivaroxaban is therefore being developed for the treatment of thromboembolic events in children and adolescents. As small children are often unable to swallow tablets, an oral suspension (mixture of a liquid containing finely distributed solids) has been developed which allows dosing according to body weight. The objective of this trial is to compare the bioavailability (proportion of a substance that remains available unchanged in the blood circulation) of a rivaroxaban oral solution with that of the rivaroxaban tablet approved for treatment. In order to evaluate the potential influence of food, the oral suspension containing 20 mg rivaroxaban will be taken after consuming food. In addition, the pharmacokinetics (concentrations of the drug and breakdown products (metabolites) in blood), safety and tolerability will be assessed.
The purpose of this study is to test the relative bioavailability (extent and rate to which a drug is taken up by the body) of TMC207 following the administration of two pediatric formulations of TMC207 taken with and without food in healthy adult participants.
A new formulation of methylprednisolone is being developed. A study is needed to determine the drug availability using the new formulation, a powder for reconstitution into a suspension, versus the current commercially available tablet formulation in healthy volunteers.
The purpose of the study is to compare the pharmacokinetics of naltrexone following i.v. and oral administration in healthy volunteers, and to assess the bioavailability of naltrexone following oral administration. Moreover, safety is assessed.
The purpose of the study is to compare the pharmacokinetics of fentanyl following i.v. and oral administration in healthy volunteers, and to assess the bioavailability of fentanyl following oral administration. Moreover, safety is assessed.