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The Safety/Tolerability and Pharmacokinetics (PKs) of Naftopidil in Korean Healthy Male Volunteers

This study has been completed.
Information provided by (Responsible Party):
Dong-A ST Co., Ltd. Identifier:
First received: August 26, 2009
Last updated: September 30, 2014
Last verified: September 2014
The safety/tolerability and pharmacokinetics (PK) of Naftopidil (commercial name: Flivas) after oral administration will be investigated in Korean healthy male volunteers. All volunteers will be assigned to 2 groups and administered a lower single dose tablet (Period 1). After one week's wash-over period, the volunteers take higher dosages (Period 2).

Condition Intervention Phase
Healthy Drug: Naftopidil Phase 1

Study Type: Interventional
Study Design: Intervention Model: Parallel Assignment
Masking: Single (Outcomes Assessor)
Primary Purpose: Basic Science
Official Title: A Clinical Trial to Investigate the Safety/Tolerability and Pharmacokinetics of Naftopidil After Oral Administration in Korean Healthy Male Volunteers

Further study details as provided by Dong-A ST Co., Ltd.:

Primary Outcome Measures:
  • Pharmacokinetics of naftopidil [ Time Frame: Dec. 2009 (anticipated) ]

Enrollment: 16
Study Start Date: September 2009
Study Completion Date: March 2010
Primary Completion Date: October 2009 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: Naftopidil Drug: Naftopidil
25mg/ 50 mg/ 75mg dosage tablets


Ages Eligible for Study:   20 Years to 45 Years   (Adult)
Sexes Eligible for Study:   Male
Accepts Healthy Volunteers:   Yes

Inclusion Criteria:

  • Healthy males subjects, 20-45 years inclusive
  • Weight over 55 kg inclusive and Ideal Body Weight (IBW) between -20% and +20% inclusive
  • Written informed consent given

Exclusion Criteria:

  • Hypersensitivity to drugs(aspirin, antibiotics and so on) including naftopidil
  • History or presence of any clinically significant liver or kidney disease, gastrointestinal, cardiovascular, respiratory, endocrinal, musculoskeletal, neurologic/psychiatric, urinary, hematological, oncological pathology
  • Have a history of drug abuse, or show positive for drug abuse at urine screening
  • Have participated in another clinical study within 2 months prior to entering inth the study
  • Are considered ineligible by the investigator due to clinical laboratory results or any other relevant reasons
  Contacts and Locations
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Please refer to this study by its identifier: NCT00967772

Korea, Republic of
Clinical Trial center, Clinical Research institute, Seoul National University Hospital
Seoul, Korea, Republic of
Sponsors and Collaborators
Dong-A ST Co., Ltd.
Principal Investigator: Kyung-Sang Yu, M.D.,Ph.D. Assistant Professor of Clinical Pharmacology, Seoul Nat'l Univ. Hospital
  More Information

Responsible Party: Dong-A ST Co., Ltd. Identifier: NCT00967772     History of Changes
Other Study ID Numbers: FLV100
Study First Received: August 26, 2009
Last Updated: September 30, 2014

Keywords provided by Dong-A ST Co., Ltd.:

Additional relevant MeSH terms:
Adrenergic alpha-Antagonists
Adrenergic Antagonists
Adrenergic Agents
Neurotransmitter Agents
Molecular Mechanisms of Pharmacological Action
Physiological Effects of Drugs
Antihypertensive Agents
Calcium Channel Blockers
Membrane Transport Modulators
Platelet Aggregation Inhibitors processed this record on August 18, 2017