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Pharmacokinetics (PK) of Rilzabrutinib (PRN1008) in Healthy Japanese and Caucasian Subjects

A Phase 1, Single-Center, Open-Label Study to Evaluate the Pharmacokinetics and Tolerability of Rilzabrutinib (PRN1008) in Japanese and Caucasian Healthy Male and Female Subjects

Status
Completed
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06444191
Enrollment
23
Registered
2024-06-05
Start date
2021-01-04
Completion date
2021-04-12
Last updated
2024-06-05

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Healthy Volunteers

Brief summary

This is a single-dose and multiple doses study to assess the Pharmacokinetics (PK) of rilzabrutinib as well as to evaluate the tolerability of rilzabrutinib in Japanese and Caucasian Healthy Male and Female subjects.

Interventions

DRUGRilzabrutinib

Rilzabrutinib tablet(s) administered orally

Sponsors

Principia Biopharma, a Sanofi Company
Lead SponsorINDUSTRY

Study design

Allocation
NON_RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to 75 Years
Healthy volunteers
Yes

Inclusion criteria

* Japanese subjects must have both biological parents and all four grandparents of Japanese ancestry and born in a Japanese country of origin. * Caucasian subjects must have four Caucasian grandparents (Hispanics of white race can be considered Caucasian). * Healthy adult male or non-pregnant non-lactating females, 18 to 75 years of age (inclusive) at the time of screening. * Body mass index (BMI) ≥18 and ≤35 (kg/m2), inclusive, and a minimum body weight of 45 kg. Additional inclusion criteria might apply.

Exclusion criteria

* Symptoms consistent with COVID-19 such as fever, cough, and shortness of breath within 14 days before Day 1. * Positive test for severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) at screening or check-in (Day -1). * Known previous COVID-19 infection. * Use of any prescription or over-the-counter (OTC) medication, herbal products, or dietary supplements within the 7 days or 5 half-lives, whichever is longer, prior to the first study drug administration. Use of hormonal contraception is allowed prior to and during the study. Additional

Design outcomes

Primary

MeasureTime frame
Accumulation ratio (Rac)Up to 48 hours after the last rilzabrutinib dose
Maximum measured concentration of total rilzabrutinib in plasma (Cmax)Up to 48 hours after the last rilzabrutinib dose
Time from dosing to maximum measured concentration of total rilzabrutinib in plasma (tmax)Up to 48 hours after the last rilzabrutinib dose
Area under the concentration-time curve of total rilzabrutinib in plasma from 0 to the last measurable concentration (AUC0-last)Up to 48 hours after the last rilzabrutinib dose
Area under the concentration-time curve of total rilzabrutinib in plasma over the time interval from 0 extrapolated to infinity (AUC0-inf)Up to 48 hours after the last rilzabrutinib dose
Area under the plasma concentration-time curve of total rilzabrutinib from zero during the dosage interval (AUC0-tau)Up to 48 hours after the last rilzabrutinib dose
Terminal Half-Life of total rilzabrutinib in Plasma (t1/2)Up to 48 hours after the last rilzabrutinib dose
Apparent Total Clearance of rilzabrutinib in the plasma after oral administration (CL/F)Up to 48 hours after the last rilzabrutinib dose
Apparent volume of distribution after oral administration (Vd/F)Up to 48 hours after the last rilzabrutinib dose
Dose proportionality of rilzabrutinibUp to 48 hours after the last rilzabrutinib dose

Secondary

MeasureTime frame
Number of Adverse Events (AE) / Serious Adverse Events (SAE)From date of signed ICF, up to 47 days
Bruton's Tyrosine Kinase (BTK) Occupancy characterizationUp to 48 hours after the last rilzabrutinib dose
Maximum measured concentration of rilzabrutinib metabolites in plasma (Cmax)Up to 48 hours after the last rilzabrutinib dose
Time from dosing to maximum measured concentration of rilzabrutinib metabolites in plasma (tmax)Up to 48 hours after the last rilzabrutinib dose
Area under the concentration-time curve of rilzabrutinib metabolites in plasma from 0 to the last measurable concentration (AUC0-last)Up to 48 hours after the last rilzabrutinib dose
Area under the concentration-time curve of rilzabrutinib metabolites in plasma over the time interval from 0 extrapolated to infinity (AUC0-inf)Up to 48 hours after the last rilzabrutinib dose
Area under the plasma concentration-time curve of rilzabrutinib metabolites from zero during the dosage interval (AUC0-tau)Up to 48 hours after the last rilzabrutinib dose
Terminal Half-Life of rilzabrutinib metabolites in Plasma (t1/2)Up to 48 hours after the last rilzabrutinib dose
Incidence of potentially clinically significant laboratory test, vital signs, and electrocardiogram (ECGs) abnormalitiesUp to 14 days after rilzabrutinib dosing

Countries

United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026