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Study to Determine Absorption, Metabolism, and Excretion of [14C]-SAR439859, and to Assess Absolute Oral Bioavailability of Amcenestrant (SAR439859), in Healthy Post-menopausal Women

Phase 1
Completed
Conditions
Breast Cancer
Healthy Volunteers
Interventions
Drug: [14C]-SAR439859 microtracer
Drug: [14C]-SAR439859
Registration Number
NCT04940026
Lead Sponsor
Sanofi
Brief Summary

Primary Objectives:

* To assess the excretion balance after oral and IV administration of \[14C\]-SAR439859

* To assess PK of total radioactivity, \[14C\] -SAR439859 and its metabolite (M7) after IV administration of \[14C\]-SAR439859 and, PK of radioactivity, SAR439859 and M7 after oral administration of SAR439859 alone or with \[14C\]-SAR439859

* To assess IV clearance and absolute bioavailability of SAR439859 using microdose of \[14C\]-SAR439859 tracer on top of a single tablet oral dose.

* To assess relative bioavailability of SAR439859 given as tablet or solution

Secondary objectives:

* To collect samples in order to assess metabolic profile in plasma and excreta of SAR439859 after oral administration of \[14C\]-SAR439859 as solution, contribution in plasma of SAR439859 and metabolite relative to total radioactivity and identify metabolites (samples will be analyzed according to metabolic analysis plan and results will be documented in a separate report).

* To assess safety and tolerance of SAR439859

Detailed Description

Total study duration is 3 to 10 weeks, including a screening period of up to 27 days, treatment period of up to 16 days and a follow-up and end of study of up to 4 weeks.

Recruitment & Eligibility

Status
COMPLETED
Sex
Female
Target Recruitment
6
Inclusion Criteria

Female participants (age between 40 and 75 years old) who are postmenopausal or had post-bilateral surgical oophorectomy not linked to a history of cancer.

Participants who are overtly healthy. Body weight within 40.0 and 95.0 kg and body mass index (BMI) within the range 18.0 and 30 kg/m2 (inclusive).

Capable of giving signed informed consent.

Exclusion Criteria

Subject has clinical signs and symptoms consistent with COVID-19, e.g., fever, dry cough, dyspnea, loss of taste and smell, sore throat, fatigue or confirmed infection by appropriate laboratory test within the last 4 weeks prior to Screening.

Subject who had severe course of COVID-19 (i.e., hospitalization, extracorporeal membrane oxygenation, mechanically ventilated).

Frequent headaches and/or migraine, recurrent nausea and/or vomiting (for vomiting only: more than twice a month).

Blood donation, any volume (usually approximately 500 mL), within 2 months before inclusion.

Presence or history of drug hypersensitivity, or allergic disease diagnosed and treated by a physician.

History or presence of drug or alcohol abuse (alcohol consumption more than 40 g per day).

Smoking regularly more than 5 cigarettes or equivalent per week, unable to stop smoking during the study (occasional smoker can be enrolled).

Excessive consumption of beverages containing xanthine bases (more than 5 cups or glasses per day).

Subjects who are occupationally exposed to radiation as defined in the Ionizing Radiation Regulations 2017.

Participation in a trial with [13C] or [14C] radiolabeled medication in the 12 months preceding the study.

The above information is not intended to contain all considerations relevant to a patient's potential participation in a clinical trial.

Study & Design

Study Type
INTERVENTIONAL
Study Design
SINGLE_GROUP
Arm && Interventions
GroupInterventionDescription
SAR439859[14C]-SAR439859 microtracerSingle oral dose of SAR439859 at Day 1 in fasted condition followed by intravenous administration of \[14C\]-SAR439859 microtracer 3 hours later, and single oral dose of \[14C\]-SAR439859 at Day 7 in fasted condition
SAR439859amcenestrantSingle oral dose of SAR439859 at Day 1 in fasted condition followed by intravenous administration of \[14C\]-SAR439859 microtracer 3 hours later, and single oral dose of \[14C\]-SAR439859 at Day 7 in fasted condition
SAR439859[14C]-SAR439859Single oral dose of SAR439859 at Day 1 in fasted condition followed by intravenous administration of \[14C\]-SAR439859 microtracer 3 hours later, and single oral dose of \[14C\]-SAR439859 at Day 7 in fasted condition
Primary Outcome Measures
NameTimeMethod
Percentage of radioactive dose excreted in urine and feces after oral administrationDay 7 up to max Day 44
Assessment of Pharmacokinetic (PK) parameter: AUC for radioactivity and SAR439859 after IV administrationDay 1 to Day 3

Area under the plasma concentration versus time curve extrapolated to infinity

Assessment of PK parameter: t1/2z for radioactivity and SAR439859 after IV administrationDay 1 to Day 3

Terminal half-life associated with the terminal slope (λz)

Assessment of PK parameter: AUC ratios after IV administrationDay 1 to Day 3

SAR439859 to radioactivity ratio for plasma AUC

Assessment of PK parameter: t1/2z for radioactivity and SAR439859 after oral administrationDay 1 to Day 5, Day 7 to Day 11
Absolute oral bioavailability of SAR439859Day 1 to Day 5, Day 7 to Day 11

Absolute oral bioavailability, expressed as a percentage, estimated from AUCs obtained after oral and IV administration

Assessment of PK parameter: CL for SAR439859 after IV administrationDay 1 to Day 3

Total body clearance

Assessment of PK parameter: Rmet AUC after IV and oral administrationDay 1 to Day 5, Day 7 to Day 11

M7 to SAR439859 ratio for plasma AUC

Percentage of radioactive dose, SAR439859 and M7 excreted in urine and feces after IV administrationDay 1 to Day 6
Assessment of PK parameter: Cmax for radioactivity and SAR439859 after oral administrationDay 1 to Day 5, Day 7 to Day 11

Maximum plasm concentration observed

Assessment of PK parameter: Cmax for M7 after IV and oral administrationDay 1 to Day 5, Day 7 to Day 11
Relative bioavailability of SAR439859 after oral administrationDay 1 to Day 5, Day 7 to Day 11
Assessment of PK parameter: tmax for radioactivity and SAR439859 after oral administrationDay 1 to Day 5, Day 7 to Day 11

Time to reach Cmax

Assessment of PK parameter: AUC for radioactivity and SAR439859 after oral administrationDay 1 to Day 5, Day 7 to Day 11
Assessment of PK parameter: AUC ratios after oral administrationDay 7 to Day 11

SAR439859 to radioactivity ratio for plasma AUC

Assessment of PK parameter: AUC for M7 after IV and oral administrationDay 1 to Day 5, Day 7 to Day 11
Assessment of PK parameter: t1/2z for M7 after IV and oral administrationDay 1 to Day 5, Day 7 to Day 11
Assessment of PK parameter: Rmet Cmax after IV and oral administrationDay 1 to Day 5, Day 7 to Day 11

M7 to SAR439859 ratio for plasma Cmax

Secondary Outcome Measures
NameTimeMethod
Number of participants with adverse eventsDay 1 to Day 44

Trial Locations

Locations (1)

Investigational Site Number 8260001

🇬🇧

Nottingham, United Kingdom

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