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Pivotal Bioequivalence Study to Qualify Manufacturing Site Transfer for Prazosin Hydrochloride Capsules

NCT04967443 · Status: COMPLETED · Phase: PHASE1 · Type: INTERVENTIONAL · Enrollment: 72

Last updated 2024-07-12

Study results available
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Summary

Prazosin hydrochloride (HCl) is an oral anti-hypertensive indicated for the treatment of primary and secondary hypertension and heart failure. Pfizer Inc. is the marketing authorization holder for prazosin HCl oral capsules and intended to transfer drug product manufacturing operations from Pfizer, Barceloneta Puerto Rico to Pfizer Pharmaceutical, Ascoli, Italy. To support the manufacturer site transfer and process changes, this bioequivalence (BE) study is being conducted.

This study will be a 2 Cohort, open-label, randomized, single dose study in healthy adult male and/or female participants. Cohort 1 will be crossover with 3 treatments, 3 periods, 6 sequences. Cohort 2 will be crossover with 2 treatments, 2 periods, 2 sequences. Primary objective of this study is demonstrate bioequivalence between prazosin HCl 1, 2 and 5 mg capsules manufactured at Ascoli versus prazosin HCl 2 and 5 mg capsules manufactured at Barceloneta under fasting conditions in healthy adult participants. Approximately 36 participants will be enrolled in each Cohort 1 and Cohort 2.

Pharmacokinetic and statistical analysis will be performed for prazosin. Data from 2 Cohorts will be analyzed separately. The PK parameters area under the plasma concentration-time curve from time zero to the time of the last quantifiable concentration (AUClast), and from time zero extrapolated to infinite time (AUCinf), maximum plasma concentration (Cmax), time to first occurrence of Cmax (Tmax), and terminal phase elimination half-life (t½) will be summarized descriptively by analyte and treatment.

For primary objective, bioequivalence of the Test treatment relative to Reference treatment will be concluded if the 90% confidence intervals (CI) for the ratio of adjusted geometric means of Test treatments relative to Reference treatment for AUCinf (if data permit), AUClast and Cmax, fall wholly within (80%, 125%).

Conditions

Interventions

DRUG

Prazosin HCl 2mg

Prazosin HCL 1 X 2 mg capsule.

DRUG

Prazosin HCl 1 mg

Prazosin HCl 2 X 1 mg capsule.

DRUG

Prazosin HCl 5 mg

Prazosin HCL 1 X 5 mg capsule.

Sponsors & Collaborators

Principal Investigators

  • Pfizer CT.gov Call Center · Pfizer

Study Design

Allocation
RANDOMIZED
Purpose
OTHER
Masking
NONE
Model
CROSSOVER

Eligibility

Min Age
18 Years
Max Age
55 Years
Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2021-09-22
Primary Completion
2022-02-15
Completion
2022-02-15
FDA Drug
Yes

Countries

  • United States

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT04967443 on ClinicalTrials.gov