The purpose of this study is to characterize the mass balance, absorption, metabolism, and elimination pathways of orally administered \[14C\] rucaparib followed by cycle by cycle treatment with rucaparib continuing until disease progression or other reason for discontinuation
This is a Phase 1, open-label, non-randomized, mass balance study in patients with histologically or cytologically confirmed advanced solid tumors. Approximately 6 patients will be enrolled. The study will consist of 2 parts: a mass balance part (Part I) and a rucaparib treatment part (Part II). Each patient will receive a single oral dose of 600 mg \[14C\] rucaparib (approximately 140 µCi) in the fasted state. Patients will be confined at the study site for the collection of blood samples and excreta for a maximum of 13 days, from Day -1. The patient can be discharged sooner than Day 13, if the discharge criteria are met. If the cumulative recovery of radioactivity exceeds 90% of the administered dose or if radioactivity in urine and feces is \< 1% of the administered dose over a 24 hour period on two consecutive days, as determined by quick counts. In Part II, the treatment with rucaparib in 28-day cycles will continue until progression of disease, unacceptable toxicity, or other reason for discontinuation.
Study Type
INTERVENTIONAL
Allocation
NA
Purpose
OTHER
Masking
NONE
Enrollment
6
Each dosage unit consists of a hard gelatin capsule filled with cold rucaparib camsylate and \[14C\]-rucaparib camsylate salt. Each capsule contains approximately 150 mg rucaparib (free base weight) and approximately 35 µCi of \[14C\]-rucaparib. Each patient will ingest four capsules in the fasted state for a total dose of 600 mg rucaparib (free base weight) with approximately 140 µCi of \[14C\]-rucaparib
200 \& 300 mg tablet
PRA Magyarország Kft.
Budapest, Rottenbiller Utca 13, Hungary
Pharmacokinetics of 14C-labeled rucaparib (radioactivity in whole blood and plasma): tmax
Time to peak concentration (tmax)
Time frame: Days 1-13
Pharmacokinetics of 14C-labeled rucaparib(Radioactivity in whole blood and plasma): Cmax
peak (maximum) concentration (Cmax)
Time frame: Days 1-13
Pharmacokinetics of 14C-labeled rucaparib(Radioactivity in whole blood and plasma): t1/2
Elimination half-life (t1/2)
Time frame: Days 1-13
Pharmacokinetics of 14C-labeled rucaparib(Radioactivity in whole blood and plasma): AUC
Area under curve (AUC)
Time frame: Days 1-13
Pharmacokinetics of 14C-labeled rucaparib(Radioactivity in whole blood and plasma): CL/F
Oral clearance (CL/F)
Time frame: Days 1-13
Pharmacokinetics of 14C-labeled rucaparib(Radioactivity in whole blood and plasma): V/F
Apparent volume of distribution (V/F)
Time frame: Days 1-13
Excretion rate of 14C-labeled rucaparib(radioactivity in feces)
Percent of dose excreted in feces
Time frame: Days 1-13
Excretion rate of 14C-labeled rucaparib(radioactivity in urine)
Percent of dose excreted in urine
Time frame: Days 1-13
Pharmacokinetics of rucaparib (in urine): CLR
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Renal clearance (CLR)
Time frame: Days 1-13
Excretion rate of 14C-labeled rucaparib(radioactivity in vomit, if applicable)
Percent of dose in vomit, if applicable
Time frame: Days 1-13
Metabolite identification of rucaparib in plasma, urine and feces
Time frame: Days 1-13
Cumulative whole blood:plasma ratio calculated for Cmax
peak concentration (Cmax)
Time frame: Days 1-13
Cumulative whole blood:plasma ratio calculated for AUC0-tlast
AUC from time zero to the last time point with concentration above the lower limit of quantitation (AUC0-last)
Time frame: Day 1-13
Cumulative whole blood:plasma ratio calculated for AUCinf
AUC from time zero to infinity (AUCinf)
Time frame: Day 1-13
Tolerability and safety of rucaparib assessed by incidence of Adverse Events (AEs), clinical laboratory abnormalities, and dose modifications
Incidence of Adverse Events (AEs), clinical laboratory abnormalities, and dose modifications
Time frame: From cycle 1 Day 1 until radiologically confirmed disease progression, death, or initiation of subsequent treatment whichever comes first up to 52 weeks