Clinical pharmacology of ponesimod, a selective S1P1 receptor modulator, after uptitration to supratherapeutic doses in healthy subjects.
Eur J Pharm Sci
; 63: 147-53, 2014 Oct 15.
Article
en En
| MEDLINE
| ID: mdl-25046167
ABSTRACT
PURPOSE:
The aim of this study was to assess in healthy subjects the safety, tolerability, pharmacokinetics, and pharmacodynamics of ponesimod, an oral selective sphingosine-1-phosphate receptor 1 (S1P1) modulator in development for multiple sclerosis, by using an uptitration scheme up to supratherapeutic doses.METHODS:
This was a double-blind, placebo-controlled, randomised, parallel group, uptitration study. Male and female subjects received ascending oral doses of ponesimod (n=12) or placebo (n=4) once daily for 3 days at each dose level (10-20-40-60-80-100mg).RESULTS:
The most frequent adverse events were chest discomfort, headache, dizziness, dyspnoea, abdominal pain, and night sweats. Chest discomfort and dyspnoea were considered dose-limiting. A transient decrease in heart rate was observed following the first 10-mg ponesimod dose (maximum mean decrease of 9 beats per minute (bpm) (placebo 2 bpm)). After uptitration, effects on heart rate were indistinguishable from placebo. A dose-dependent effect on pulmonary function tests was observed and reached a plateau with 60-80 mg ponesimod (maximum mean decrease from baseline of 1.24l (-30.5%) in forced expiratory volume in 1s). A plateau in mean lymphocyte count reduction of approximately 70% from baseline was reached at the 40 mg dose level. Observed effects were fully reversible within 10days after treatment discontinuation. No relevant sex differences were observed.CONCLUSIONS:
At supratherapeutic doses, symptoms of chest discomfort and dyspnoea were dose-limiting. An uptitration dosing scheme is to be preferred in clinical studies in patients in order to limit effects of ponesimod on heart rate and atrioventricular (AV) conduction.Palabras clave
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Tiazoles
/
Receptores de Lisoesfingolípidos
Tipo de estudio:
Clinical_trials
Límite:
Adolescent
/
Adult
/
Aged
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Female
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Humans
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Male
/
Middle aged
Idioma:
En
Revista:
Eur J Pharm Sci
Asunto de la revista:
FARMACIA
/
FARMACOLOGIA
/
QUIMICA
Año:
2014
Tipo del documento:
Article