Comparison of the Pharmacokinetic Properties of Two Tablet Formulations of Macitentan in Healthy Adults

Study Overview
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Brief Summary
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A study conducted in healthy adults to investigate if a new macitentan tablet leads to the same fate of macitentan in the body (time of onset, time of presence, amount in the blood) as the marketed macitentan tablet.

Detailed Description
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The purpose of this study is to establish biocomparison of 2 types of tablets containing macitentan: a pediatric dispersible tablet and the adult film-coated tablet. A single oral dose of each tablet will be given to healthy subjects on 2 different periods separated by a washout phase of 10 to 14 days. Biocomparison will be based on the comparison of the pharmacokinetic parameters of macitentan with the two types of tablets using specific statistical methods. The pharmacokinetic parameters will be considered equivalent if specific criteria defined in the study protocol are met.

Official Title
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Single-center, Open-label, Randomized, Two-treatment, Single-dose, Crossover Study in Healthy Subjects to Investigate the Biocomparison of the Adult and Pediatric Formulation of Macitentan

Conditions
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Healthy Subjects

Intervention / Treatment
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* Drug: Treatment A (adult formulation)
* Drug: Treatment B (pediatric formulation)


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Signed informed consent Healthy on the basis of the physical examination, vital signs (systolic and diastolic blood pressure, heart rate), 12-lead ECG, and laboratory tests performed at screening Exclusion Criteria: History or clinical evidence of any disease and/or condition, which might interfere with the absorption, distribution, metabolism or excretion of the study drug Previous history of fainting, collapse, syncope, orthostatic hypotension, or vasovagal reactions History or clinical evidence of alcoholism or drug abuse within the 3 -year period prior to screening Excessive caffeine consumption Smoking within 3 months prior to screening and inability to refrain from smoking during the course of the study Previous treatment with any prescribed medications (including vaccines) or over-the counter medications within 2 weeks prior to first study drug administration Loss of 250 mL or more of blood within 3 months prior to screening Any circumstances or conditions, which, in the opinion of the investigator, may affect full participation in the study or compliance with the protocol

Ages Eligible for Study
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Minimum Age: 18 Years
Maximum Age: 45 Years

Sexes Eligible for Study
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Male

Accepts Healthy Volunteers
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Accepts Healthy Volunteers

Study Plan
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How is the study designed?
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Design Details

Allocation: Randomized
Intervention Model: Crossover Assignment
Masking: None (Open Label)


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: Sequence AB<br>Subjects receive treatment A in Period 1 followed by treatment B in Period 2 with a washout phase of 10 to 14 days between the two treatment periods | Drug: Treatment A (adult formulation)<br>* Single oral administration of one film-coated tablet containing 10 mg of macitentan as active substance and lactose, magnesium stearate, microcrystalline cellulose, povidone, sodium starch glycolate type A, polysorbate as inactive ingredients.The film coat contains titanium dioxide, talc, xanthan gum, polyvinyl alcohol, and soy lecithin.<br>* Other names: Opsumit;Drug: Treatment B (pediatric formulation)<br>* Single oral administration of two dispersible tablets, each containing 5 mg of macitentan as active ingredient and Mannitol delta polymorphic crystals, mannitol, isomalt, isomalt agglomerated, croscarmellose sodium, and magnesium stearate as inactive ingredients.<br>|
| Experimental: Sequence BA<br>Subjects receive treatment B in Period 1 followed by treatment A in Period 2 with a washout phase of 10 to 14 days between the two treatment periods | Drug: Treatment A (adult formulation)<br>* Single oral administration of one film-coated tablet containing 10 mg of macitentan as active substance and lactose, magnesium stearate, microcrystalline cellulose, povidone, sodium starch glycolate type A, polysorbate as inactive ingredients.The film coat contains titanium dioxide, talc, xanthan gum, polyvinyl alcohol, and soy lecithin.<br>* Other names: Opsumit;Drug: Treatment B (pediatric formulation)<br>* Single oral administration of two dispersible tablets, each containing 5 mg of macitentan as active ingredient and Mannitol delta polymorphic crystals, mannitol, isomalt, isomalt agglomerated, croscarmellose sodium, and magnesium stearate as inactive ingredients.<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Plasma pharmacokinetic profile | Pharmacokinetic profile will be determined by the following parameters: Cmax (Maximum plasma concentration), tmax (Time to reach Cmax), t1/2 (Terminal half-life), AUC(0-t) (Area under the plasma concentration-time curve from zero to time t of the last measured concentration above the limit of quantification), AUC(0-inf) (Area under the plasma concentration-time curve from zero to infinity) | From pre-dose to 216 hours post-dose | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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macitentan, biocomparison, safety