CClinicalTrials.gg
CompletedNCT05236231Updated Mar 30, 2025

A Study of Fixed Dose Combination of Macitentan/Tadalafil (10 mg/20 mg) Compared to the Reference Free Combination of Macitentan and Tadalafil in Healthy Adult Participants

A Phase 1 interventional study of Macitentan 10 mg and Tadalafil 20 mg in Healthy, sponsored by Actelion. Completed at 1 site in United States. Open to participants aged 18 Years to 55 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2025-03-30.

Sponsored by Actelion · Phase 1, Interventional, and Basic science

From the registry’s dates

  • Primary completion was May 2022, 4 years 4 months ago, and no results have been posted to the registry.
Phase
Phase 1
Study type
Interventional
Enrollment
40
Allocation
Randomized
Ages
18 Years to 55 Years
Sex
All
01

Study summary

The purpose of this study is to demonstrate bioequivalence on the primary pharmacokinetic (PK) parameters between macitentan and tadalafil administered as a fixed dose combination (FDC) (test) of macitentan/tadalafil and the co- administered free combination (reference) of macitentan (Opsumit) and tadalafil (Adcirca) in fasted conditions in healthy adult participants; and to evaluate the effect of food on the primary PK parameters of macitentan and tadalafil administered as an FDC of macitentan/tadalafil in fed versus fasted conditions in healthy adult participants.

02

Conditions studied

  • Healthy
03

In context

Lead sponsor

Actelion is the lead sponsor of 140 studies on the registry; 1 is open to participants now.

Of its 27 completed or terminated interventional studies of FDA-regulated products, 24 (89%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 55 Years
Sexes eligible
All
Accepts healthy volunteers
Yes

Inclusion criteria

  • Healthy on the basis of physical examination and medical history, performed at screening. If there are any abnormalities, they must be considered not clinically relevant and this determination must be recorded in the participant's source documents and initialed by the investigator
  • Systolic blood pressure (SBP) between 100 and 145 millimeters of mercury (mm Hg) (inclusive), diastolic blood pressure (DBP) between 50 and 90 mm Hg (inclusive), and pulse rate between 45 and 90 beats per minute (inclusive) at screening, supine for at least 5 minutes and after 3 minutes of standing
  • Twelve-lead electrocardiogram (ECG) without clinically relevant abnormalities, at the discretion of the investigator, measured after the participant is supine for at least 5 minutes, at screening
  • A woman must agree not to donate eggs (ova, oocytes) for the purposes of assisted reproduction during the study and for a period of 30 days after the last study intervention intake
  • Willing and able to adhere to the lifestyle restrictions specified in this protocol

Exclusion criteria

Exclusion Criteria:

  • Known allergies, hypersensitivity, or intolerance to macitentan, tadalafil, or drug of the same class, or its excipients
  • History or clinical evidence of any disease and/or existence of any surgical or medical condition which might interfere with the absorption, distribution, metabolism, or excretion of the study intervention(s) (appendectomy and herniotomy allowed, cholecystectomy not allowed)
  • Veins unsuitable for intravenous puncture on either arm (example, veins that are difficult to locate, access, or puncture, and veins with a tendency to rupture during or after puncture)
  • Known hereditary degenerative retinal disorders, including retinitis pigmentosa
05

Study design

Phase
Phase 1
Primary purpose
Basic science
Allocation
Randomized
Intervention model
Crossover assignment
Masking
None (open label)
Enrollment
40 participants (actual)

Study arms

  • Experimental
    Treatment Sequence ABC

    Participants will receive single oral dose of fixed dose combination (FDC) of macitentan/tadalafil under fasting conditions in (test) (Treatment A) Treatment Period 1 followed by single oral dose of FDC of macitentan/tadalafil under fed conditions (test) (Treatment B) in Treatment Period 2 and then single oral dose of macitentan/tadalafil under fasting conditions (reference) (Treatment C) in Treatment Period 3 on Day 1 of each Treatment Period. There will be a wash-out period of at least 12 days between Day 1 of subsequent treatment period.

    Drug: Macitentan 10 mg · Drug: Tadalafil 20 mg · Drug: Macitentan 10 mg/Tadalafil 20mg FDC

  • Experimental
    Treatment Sequence BCA

    Participants will receive Treatment B in Treatment Period 1 followed by Treatment C in Treatment Period 2 and Treatment A in Treatment Period 3. There will be a wash-out period of at least 12 days between Day 1 of subsequent treatment period.

    Drug: Macitentan 10 mg · Drug: Tadalafil 20 mg · Drug: Macitentan 10 mg/Tadalafil 20mg FDC

  • Experimental
    Treatment Sequence CAB

    Participants will receive Treatment C in Treatment Period 1 followed by Treatment A in Treatment Period 2 and Treatment B in Treatment Period 3. There will be a wash-out period of at least 12 days between Day 1 of subsequent treatment period.

    Drug: Macitentan 10 mg · Drug: Tadalafil 20 mg · Drug: Macitentan 10 mg/Tadalafil 20mg FDC

  • Experimental
    Treatment Sequence ACB

    Participants will receive Treatment A in Treatment Period 1 followed by Treatment C in Treatment Period 2 and Treatment B in Treatment Period 3. There will be a wash-out period of at least 12 days between Day 1 of subsequent treatment period.

    Drug: Macitentan 10 mg · Drug: Tadalafil 20 mg · Drug: Macitentan 10 mg/Tadalafil 20mg FDC

  • Experimental
    Treatment Sequence CBA

    Participants will receive Treatment C in Treatment Period 1 followed by Treatment B in Treatment Period 2 and Treatment A in Treatment Period 3. There will be a wash-out period of at least 12 days between Day 1 of subsequent treatment period.

    Drug: Macitentan 10 mg · Drug: Tadalafil 20 mg · Drug: Macitentan 10 mg/Tadalafil 20mg FDC

  • Experimental
    Treatment Sequence BAC

    Participants will receive Treatment B in Treatment Period 1 followed by Treatment A in Treatment Period 2 and Treatment C in Treatment Period 3. There will be a wash-out period of at least 12 days between Day 1 of subsequent treatment period.

    Drug: Macitentan 10 mg · Drug: Tadalafil 20 mg · Drug: Macitentan 10 mg/Tadalafil 20mg FDC

Interventions

  • DrugMacitentan 10 mg

    Macitentan 10mg tablet will be administered orally as per assigned treatment sequence.

    Also known as: Opsumit, JNJ-67896062

  • DrugTadalafil 20 mg

    Tadalafil 20mg tablet will be administered orally as per assigned treatment sequence.

    Also known as: Adcirca, JNJ-10291697

  • DrugMacitentan 10 mg/Tadalafil 20mg FDC

    FDC of Macitentan 10 mg/Tadalafil 20 mg will be administered orally as single dose tablets.

    Also known as: ACT-064992D

06

What researchers measure

Primary outcomes

  1. Maximum Observed Plasma Analyte Concentration (Cmax) of Macitentan and its Metabolite JNJ-68212820, and Tadalafil.

    Cmax is defined as the maximum observed plasma analyte concentration.

    Time frame: Predose up to 216 hours (up to Day 10)

  2. Area Under the Plasma Analyte Concentration Time Curve of Macitentan, its Metabolite JNJ-68212820, and Tadalafil from Time Zero to Time of the Last Quantifiable Concentration (AUC [0-Last])

    AUC (0-last) is defined as area under the plasma analyte concentration time curve of macitentan, its metabolite JNJ-68212820 and tadalafil from time 0 to the time of the last quantifiable (non-below quantification limit \[non-BQL\]) concentrations.

    Time frame: Predose up to 216 hours (up to Day 10)

  3. Area Under the Plasma Concentration Time Curve of Macitentan and its Metabolite JNJ-68212820, and Tadalafil from Time Zero to Infinite time (AUC [0-Infinity])

    AUC (0-infinity) is defined as area under the plasma concentration-time curve of macitentan and its metabolite JNJ-68212820, and tadalafil from time 0 to infinite time, calculated as the sum of AUC (0-last) and C(last)/lambda(z) where C(last) is the last observed measurable (non-BQL) plasma analyte concentration.

    Time frame: Predose up to 216 hours (up to Day 10)

Secondary outcomes

  1. Time to Reach Maximum Observed Plasma Analyte Concentration (Tmax) of Macitentan and its Metabolite JNJ-68212820, Tadalafil

    Tmax is defined as actual sampling time to reach the maximum observed plasma analyte concentration.

    Time frame: Predose up to 216 hours (up to Day 10)

  2. Area Under the Plasma Concentration Versus Time Curve of Macitentan and its Metabolite JNJ-68212820, Tadalafil From Time Zero up to 72 Hours Post Dosing (AUC72h)

    (AUC 0-72h) is defined as the area under the plasma concentration-time curve of macitentan and its metabolite JNJ-68212820, tadalafil from time 0 to 72 hours postdose, calculated by linear-linear trapezoidal summation.

    Time frame: Predose up to 216 hours (up to Day 10)

  3. Apparent Elimination Half-Life (t1/2) of Macitentan and its Metabolite JNJ-68212820, Tadalafil

    t1/2 is defined as apparent elimination half-life calculated as 0.693/lambda(z).

    Time frame: Predose up to 216 hours (up to Day 10)

  4. Apparent Terminal Elimination Rate Constant (lambda z) of Macitentan and its Metabolite JNJ-68212820, Tadalafil

    Apparent terminal elimination rate constant is estimated by linear regression using the terminal log-linear phase of the log-transformed concentration versus time curve.

    Time frame: Predose up to 216 hours (up to Day 10)

  5. Total Apparent Oral Clearance (CL/F) of Macitentan and its Metabolite JNJ-68212820, Tadalafil

    CL/F is defined as total apparent oral clearance calculated as dose/AUC(0-infinity).

    Time frame: Predose up to 216 hours (up to Day 10)

  6. Apparent Volume of Distribution (Vd/F) of Macitentan and its Metabolite JNJ-68212820, Tadalafil

    Vd/F is defined as apparent volume of distribution calculated as dose/(lambda(z) \*AUC (0 to infinity).

    Time frame: Predose up to 216 hours (up to Day 10)

  7. Last Observed Measurable Plasma Concentration (Clast) of Macitentan and its Metabolite JNJ-68212820, Tadalafil

    Clast is defined as the last observed measurable (non-BQL) plasma concentration of macitentan and its metabolite JNJ-68212820, Tadalafil.

    Time frame: Predose up to 216 hours (up to Day 10)

07

Study locations

1 site
  • PRAHS
    Salt Lake City, Utah 84124, United States
08

References and documents

Individual participant data

Plan to share: Yes — The data sharing policy of the Janssen Pharmaceutical Companies of Johnson \& Johnson is available at www.janssen.com/clinical-trials/transparency. As noted on this site, requests for access to the study data can be submitted through Yale Open Data Access (YODA) Project site at yoda.yale.edu

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Mar 30, 2025, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT05236231
Lead sponsor
Actelion
Responsible party
Sponsor
First posted
Feb 11, 2022
Start date
Feb 4, 2022
Primary completion
May 13, 2022
Completion
May 14, 2022
Last update
Mar 30, 2025

Study contacts

Actelion Clinical Trial
study director · Actelion

Oversight

Data monitoring committee
No
FDA-regulated drug
Yes
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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This study is completed, as verified in Mar 2025. You cannot join it, but the record below documents what was studied.

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