Pharmacokinetics, Dialysability and Safety of P03277 in Healthy Volunteers and in Patients With Impaired Renal Function

Pharmacokinetics, Dialysability and Safety of P03277, a New Gadolinium-based Contrast Agent, in Healthy Volunteers and in Patients With Impaired Renal Function

This is an open-label, non-randomized, successive cohorts design, multicenter, single dose phase I study.

The primary objectives are:

• to evaluate the pharmacokinetics (plasma and urine) profile of P03277 following single intravenous injection (0.1 mmol/kg body weight) in patients with mild to severe renal impairment and in healthy volunteers with normal renal function used as reference.
• to assess dialysability of P03277 following a single intravenous injection (0.1 mmol/kg body weight) in patients with end stage renal disease requiring hemodialysis.

A full range design including the different degrees of renal impairment and healthy volunteers used as reference has been chosen.

Enrolment will be successive starting with both healthy volunteers (cohort 1) and patients with mild renal impairment (cohort 2), then patients with moderate renal impairment (cohort 3), then patients with severe renal impairment (cohort 4) to end with patients with end stage renal disease (cohort 5). Pharmacokinetics and safety profiles following the confinement period will be reviewed per each successive cohort by a Data Monitoring Committee before starting recruitment of patients in the next cohort. Cohorts 1 and 2 will be recruited in parallel and Data Monitoring Committee review will start after the completion of these first two cohorts.

Inclusion Criteria:

For all subjects:

• Subject being 18 years or older, able and willing to participate in the trial
• Subject in good enough health status as determined by investigator according to medical history, physical examination, vital signs, 12 lead ECG and laboratory tests at screening and inclusion

For healthy volunteers / cohort 1:

Healthy volunteer with stable normal renal function defined with an absolute value of eGFR ≥ 90 mL/min based on two eGFR assessments done at screening and inclusion, with a maximum tolerance of 15% between the 2 measurements

For patients with renal impairment / cohorts 2 to 5:

• Cohort 2: patient with stable mild renal impairment defined with an absolute value of eGFR between 60 and 89 mL/min included based on two eGFR assessments done at screening and inclusion, with a maximum tolerance of 15% between the 2 measurements
• Cohort 3: patient with stable moderate renal impairment defined with an absolute value of eGFR between 30 and 59 mL/min included based on two eGFR assessments done at screening and inclusion, with a maximum tolerance of 15% between the 2 measurements
• Cohort 4: patient with stable severe renal impairment defined with an absolute value of eGFR between 15 and 29 mL/min included based on two eGFR assessments done at screening and inclusion, with a maximum tolerance of 15% between the 2 measurements
• Cohort 5: patient with end-stage renal failure who requires 3 hemodialysis sessions per week