Bioequivalence Study of AJU-G721 and G721R in Healthy Adult Volunteers Under Fasting Conditions

June 8, 2026 updated by: AJU Pharm Co., Ltd.

An Open-Label, Randomized, Fasting, Single-Dose, Two-Sequence, Two-Period Crossover Study to Evaluate the Bioequivalence of "AJU-G721" and "G721R" in Healthy Adult Male Subjects

To evaluate and compare the safety and pharmacokinetic profiles of "AJU-G721" (test drug) and "G721R" (reference drug) in healthy adult male subjects.

Study Overview

Study Type

Interventional

Enrollment (Estimated)

44

Phase

  • Phase 1

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

  • Adult

Accepts Healthy Volunteers

Yes

Description

Inclusion Criteria:

  • Healthy male adults aged ≥19 years and <55 years at screening.
  • Body weight ≥ 50 kg and body mass index (BMI) between 18 and 30 kg/m².
  • Clinically healthy based on medical history, physical examination, ECG, and laboratory test results, as determined by the investigator.
  • Willing and able to provide written informed consent.
  • Agrees to use medically acceptable contraception during the required study period.

Exclusion Criteria:

  • Use of medications known to induce or inhibit drug-metabolizing enzymes within 30 days prior to the first dose, or other medications that may interfere with the study within 10 days prior to dosing.
  • Participation in another clinical trial involving an investigational product within 6 months prior to the first dose.
  • Whole blood donation within 8 weeks or component blood donation within 2 weeks prior to the first dose.
  • History of gastrointestinal resection that may affect drug absorption.
  • Known hypersensitivity to dutasteride, tamsulosin, or any component of the investigational product.
  • History of psychiatric illness, or any condition considered unsuitable for study participation by the investigator.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Crossover Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Sequence A
Period 1: Reference Drug, Single dose/ Period 2: Test Drug, Single dose
AJU-G721
G721R
Experimental: Sequence B
Period 1: Test Drug, Single dose/ Period 2: Reference Drug, Single dose
AJU-G721
G721R

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Cmax of Dutasteride and Tamsulosin.
Time Frame: [Time Frame: 0 hour ~ 72 hour after drug administration]
To assess the maximum observed plasma concentration (Cmax) of Dutasteride and Tamsulosin.
[Time Frame: 0 hour ~ 72 hour after drug administration]
AUCt of Dutasteride and Tamsulosin
Time Frame: [Time Frame: 0 hour ~ 72 hour after drug administration]
To assess the plasma concentration-time curve from time 0 to the last measurable concentration (AUCt) of Dutasteride and Tamsulosin
[Time Frame: 0 hour ~ 72 hour after drug administration]

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Estimated)

June 1, 2026

Primary Completion (Estimated)

June 1, 2026

Study Completion (Estimated)

July 1, 2026

Study Registration Dates

First Submitted

June 8, 2026

First Submitted That Met QC Criteria

June 8, 2026

First Posted (Actual)

June 11, 2026

Study Record Updates

Last Update Posted (Actual)

June 11, 2026

Last Update Submitted That Met QC Criteria

June 8, 2026

Last Verified

June 1, 2026

More Information

Terms related to this study

Other Study ID Numbers

  • 25BPH11801

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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