NCT05552196

Brief Summary

The purpose of this study is to evaluate the effect of steady-state carbamazepine (CBZ; a strong pregnane X receptor \[PXR\] agonist) on the pharmacokinetics (PK) of ponesimod following a gradual up-titration regimen in healthy adult participants.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
28

participants targeted

Target at P25-P50 for phase_1 healthy

Timeline
Completed

Started Oct 2022

Typical duration for phase_1 healthy

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

September 21, 2022

Completed
2 days until next milestone

First Posted

Study publicly available on registry

September 23, 2022

Completed
25 days until next milestone

Study Start

First participant enrolled

October 18, 2022

Completed
5 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

March 5, 2023

Completed
24 days until next milestone

Study Completion

Last participant's last visit for all outcomes

March 29, 2023

Completed
Last Updated

April 27, 2025

Status Verified

April 1, 2025

Enrollment Period

5 months

First QC Date

September 21, 2022

Last Update Submit

April 25, 2025

Conditions

Outcome Measures

Primary Outcomes (4)

  • Treatment A: Cmax is the maximum Observed Plasma Concentration (Cmax) of Ponesimod

    Cmax is the maximum observed plasma concentration of Ponesimod.

    Pre dose up to 120 hours post dose on Day 15

  • Treatment A: Area Under The Plasma Concentration-time Curve of Ponesimod From Time 0 to 24 Hours Post Dose (AUC [0-24h])

    AUC (0-24h) is the plasma concentration-time curve of Ponesimod from time 0 to 24 hours post dose, calculated by linear-linear trapezoidal summation.

    Pre dose up to 120 hours post dose on Day 15

  • Treatment B: Cmax is the maximum Observed Plasma Concentration (Cmax) of Ponesimod

    Cmax is the maximum observed plasma concentration of Ponesimod.

    Pre dose up to 120 hours post dose on Day 22

  • Treatment B: Area Under The Plasma Concentration-time Curve of Ponesimod From Time 0 to 24 Hours Post Dose (AUC [0-24h])

    AUC (0-24h) is the plasma concentration-time curve of Ponesimod from time 0 to 24 hours post dose, calculated by linear-linear trapezoidal summation.

    Pre dose up to 120 hours post dose on Day 22

Secondary Outcomes (3)

  • Number of Participants with Treatment Emergent Adverse Events (TEAEs)

    Up to Day 27

  • Total Lymphocyte Count

    Treatment A: Day 1 (Baseline) and Day 16; Treatment B: Day 1 (Baseline) and Day 23

  • Percentage Change in Lymphocytes From Baseline

    Treatment A: Baseline and Day 16, Treatment B: Baseline and Day 23

Study Arms (2)

Treatment A: Ponesimod

EXPERIMENTAL

Participants will receive up-titrated Ponesimod orally once daily from Day 1 to Day 15.

Drug: Ponesimod

Treatment B: Ponesimod + Carbamazepine

EXPERIMENTAL

Participants will receive up-titrated Carbamazepine from Day 1 to Day 7 and from Day 23 to Day 26. Participants will also receive up-titrated Ponesimod and Carbamazepine from Day 8 to Day 22.

Drug: PonesimodDrug: Carbamazepine

Interventions

Ponesimod tablet will be administered orally.

Also known as: JNJ-67896153, ACT-128800, Ponvory
Treatment A: PonesimodTreatment B: Ponesimod + Carbamazepine

Carbamazepine tablet will be administered orally.

Also known as: Tegretol
Treatment B: Ponesimod + Carbamazepine

Eligibility Criteria

Age18 Years - 55 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64)

You may qualify if:

  • Body mass index between (BMI) 18-30 kilograms per meter square (kg/m\^2)
  • Willing and able to adhere to the prohibitions and restrictions.
  • Female participants with negative pregnancy test.
  • Women of childbearing potential (WOCBP) must use 2 methods of contraception.
  • Healthy on the basis of physical examination (including neurological examination and skin examination), Columbia suicide severity rating scale questionnaire (C-SSRS) questionnaire, ophthalmological examination, medical history, vital signs, and 12-lead electrocardiogram (ECG).
  • Positive varicella zoster virus (VZV).

You may not qualify if:

  • History of or current clinically significant medical illness including (but not limited to) cardiac arrhythmias or other cardiac disease, hematologic disease, coagulation disorders (including any abnormal bleeding or blood dyscrasias), lipid abnormalities, significant pulmonary disease, including bronchospastic respiratory disease, diabetes mellitus, hepatic or renal insufficiency (creatinine clearance below 60 milliliter per minute \[mL/min\]), thyroid disease, neurologic or psychiatric disease, confirmed or suspected macular edema, infection, or any other illness that the investigator considers should exclude the participant or that could interfere with the interpretation of the study results.
  • Contraindications to the use of Carbamazepine (CBZ) as per local prescribing information
  • Any immunosuppressive treatment within 6 weeks before first study drug administration.
  • Lymphopenia (less than 1,000 cells per microliter).
  • Received an investigational drug or used an invasive investigational medical device within 30 days before the first study drug intake or received a biological product within 3 months or 5 half-lives (whichever is longer) before the first study drug intake, or is currently enrolled in an investigational study.
  • Lack of good/reasonable venous access.
  • Any condition for which, in the opinion of the investigator, participation would not be in the best interest of the participant (example, compromise the well-being) or that could prevent, limit, or confound the protocol-specified assessments.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Clinical Pharmacology Unit

Merksem, 2170, Belgium

Location

MeSH Terms

Interventions

ponesimodCarbamazepine

Intervention Hierarchy (Ancestors)

DibenzazepinesHeterocyclic Compounds, 3-RingHeterocyclic Compounds, Fused-RingHeterocyclic Compounds

Study Officials

  • Janssen Pharmaceutica N.V., Belgium Clinical Trial

    Janssen Pharmaceutica N.V., Belgium

    STUDY DIRECTOR

Study Design

Study Type
interventional
Phase
phase 1
Allocation
RANDOMIZED
Masking
NONE
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
INDUSTRY
Responsible Party
SPONSOR

Study Record Dates

First Submitted

September 21, 2022

First Posted

September 23, 2022

Study Start

October 18, 2022

Primary Completion

March 5, 2023

Study Completion

March 29, 2023

Last Updated

April 27, 2025

Record last verified: 2025-04

Data Sharing

IPD Sharing
Will share

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

More information

Locations