A Randomized Trial on the Combined Effect of Ponesimod and Propranolol on Heart Rate, Cardiac Safety, and Pharmacokinetics in Healthy Adults.

The objective of this phase 1 study was to evaluate the pharmacokinetics (PK), pharmacodynamics, and cardiac effect following administration of ponesimod (a selective sphingosine-1-phosphate receptor modulator) and propranolol in healthy adults. In treatment period (TP) 1, participants received ponesimod (2 mg). In TP2, if resting heart rate (HR) was ≥ 55 bpm, the ponesimod up-titration regimen was initiated.

On-the-road driving performance the morning after bedtime use of suvorexant 15 and 30 mg in healthy elderly.

Rationale: Suvorexant is a first-in-class orexin receptor antagonist for treating insomnia. There is a general concern that hypnotics may impair next-morning driving ability.

Objective: The objective of this study was to evaluate next-morning driving performance in older adults after single and repeated doses of suvorexant.

Pharmacokinetics, Safety, and Tolerability of Fevipiprant (QAW039), a Novel CRTh2 Receptor Antagonist: Results From 2 Randomized, Phase 1, Placebo-Controlled Studies in Healthy Volunteers.

We evaluated the pharmacokinetics (PK), safety, and tolerability of a novel oral CRTh2 antagonist, fevipiprant (QAW039), in healthy subjects. Peak concentrations of fevipiprant in plasma were observed 1-3 hours postdosing. Concentrations declined in a multiexponential manner, followed by an apparent terminal phase (t1/2 , ∼20 hours).

Background morbidity in HIV vaccine trial participants from various geographic regions as assessed by unsolicited adverse events.

Background: Recently, more clinical trials are being conducted in Africa and Asia, therefore, background morbidity in the respective populations is of interest. Between 2000 and 2007, the International AIDS Vaccine Initiative sponsored 19 Phase 1 or 2A preventive HIV vaccine trials in the US, Europe, Sub-Saharan Africa and India, enrolling 900 healthy HIV-1 uninfected volunteers.

Objective: To assess background morbidity as reflected by unsolicited adverse events (AEs), unrelated to study vaccine, reported in clinical trials from four continents.

Effects of nitazoxanide on pharmacokinetics and pharmacodynamics of a single dose of warfarin.

Purpose: The effects of nitazoxanide on warfarin pharmacokinetics and pharmacodynamics are examined.

Methods: This was a Phase I, single-center, open-label, randomized, two-way, crossover study. Secondary endpoints included an evaluation of the effect of nitazoxanide on coagulation parameters observed after a single dose of warfarin and an assessment of the overall tolerability of study treatments.

Assessment of the CYP3A-mediated drug interaction potential of anacetrapib, a potent cholesteryl ester transfer protein (CETP) inhibitor, in healthy volunteers.

In this study, midazolam was used as a probe-sensitive CYP3A substrate to investigate the effect of anacetrapib on CYP3A activity, and ketoconazole was used as a probe-inhibitor to investigate the effect of potent CYP3A inhibition on the pharmacokinetics of anacetrapib, a novel cholesteryl ester transfer protein inhibitor in development for the treatment of dyslipidemia. Two partially blinded, randomized, 2-period, fixed-sequence studies were performed. Safety, tolerability, and midazolam and anacetrapib plasma concentrations were assessed.

Seasonal influenza vaccine delivered by intradermal microinjection: A randomised controlled safety and immunogenicity trial in adults.

Influenza vaccines remain largely underused. A promising alternative to current intramuscular vaccines is a trivalent inactivated influenza vaccine (TIV) delivered using a microinjection system to offer a less invasive and possibly more acceptable vaccination. A phase II, multicentre, randomised open-label study in 978 healthy adults (18-57 years) evaluated the immunogenicity and safety of intradermal TIV.

A phase 1 study to evaluate the safety and immunogenicity of a recombinant HIV type 1 subtype C adeno-associated virus vaccine.

A novel prophylactic AIDS vaccine candidate, consisting of single-stranded DNA for HIV-1 subtype C gag, protease, and part of reverse transcriptase genes, enclosed within a recombinant adeno-associated virus serotype-2 protein capsid (tgAAC09) induced T cell responses and antibodies in nonhuman primates. In this randomized, dose escalation phase I trial, HIV-uninfected healthy volunteers (50 in Europe, 30 in India) received a single intramuscular injection of tgAAC09 at 3 x 10(9) DNase resistant particles (DRP) (n = 16), 3 x 10(10) DRP (n = 23), 3 x 10(11) DRP (n = 25), or placebo (n = 16). Twenty-one participants in Europe received a second (boost) dose of 3 x 10(11) DRP tgAAC09 or placebo at least 24 weeks after the first injection.