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Efficacy and Safety of MP-424, Peginterferon Alfa-2a (PEG-IFN Alfa-2a), and Ribavirin(RBV) in Treatment-Naïve or Relapsed Hepatitis C

This study is ongoing, but not recruiting participants.
Information provided by (Responsible Party):
Mitsubishi Tanabe Pharma Corporation Identifier:
First received: December 13, 2012
Last updated: January 6, 2014
Last verified: January 2014

This study will evaluate the efficacy and safety of MP-424 with PEG-IFN Alfa-2a and RBV in patients with genotype 1 hepatitis C, who are naïve to its treatment or relapsed after previous treatment.

Condition Intervention Phase
Chronic Hepatitis C (CHC)
Drug: MP-424
Drug: RBV
Drug: PEG-IFN alfa-2a
Phase 3

Study Type: Interventional
Study Design: Endpoint Classification: Safety/Efficacy Study
Intervention Model: Single Group Assignment
Masking: Open Label
Primary Purpose: Treatment
Official Title: A Phase 3 Study of MP-424 in Combination With PEG-IFN Alfa-2a and RBV, in Subjects With Genotype 1 Hepatitis C, Who Are Treatment-Naïve or Relapsed After Previous Treatment

Resource links provided by NLM:

Further study details as provided by Mitsubishi Tanabe Pharma Corporation:

Primary Outcome Measures:
  • Undetectable HCV (Hepatitis C Virus) RNA (Ribonucleic Acid) at 24 weeks after completion of drug administration (SVR, sustained viral response) [ Time Frame: 48 weeks ] [ Designated as safety issue: No ]

Secondary Outcome Measures:
  • Undetectable HCV RNA at 4 weeks after beginning of drug administration (RVR, rapid viral response) [ Time Frame: 4 weeks ] [ Designated as safety issue: No ]
  • Undetectable HCV RNA at completion of drug administration (ETR, end-of-treatment response) [ Time Frame: 24 weeks ] [ Designated as safety issue: No ]
  • Undetectable HCV RNA at 12 weeks after completion of drug administration [ Time Frame: 36 weeks ] [ Designated as safety issue: No ]
  • Transition of serum HCV RNA levels [ Time Frame: From baseline to 24 weeks after completion of drug administration ] [ Designated as safety issue: No ]
  • Viral sequencing at the NS3 protease region of HCV virus [ Time Frame: From baseline to 24 weeks after completion of drug administration ] [ Designated as safety issue: No ]

Estimated Enrollment: 50
Study Start Date: December 2012
Estimated Study Completion Date: October 2014
Estimated Primary Completion Date: October 2014 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: MP-424(+RBV+PEG-IFN alfa-2a) Drug: MP-424
MP-424: 750mg every 8 hours (q8h) for 12 weeks
Drug: RBV
RBV: 600 - 1000 mg/day based on body weight for 24 weeks
Drug: PEG-IFN alfa-2a
PEG-IFN alfa-2a: 180mcg/week for 24 weeks


Ages Eligible for Study:   20 Years to 65 Years
Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • Genotype 1 CHC
  • treatment-naïve or relapsers (patient who relapsed after previous treatment)
  • Able and willing to follow contraception requirements

Exclusion Criteria:

  • Cirrhosis of the liver or hepatic failure
  • Hepatitis B surface antigen-positive or HIV (Human Immunodeficiency Virus) antibodies-positive
  • History of, or concurrent hepatocellular carcinoma
  • History of, or concurrent depression, schizophrenia, or suicide attempt in the past
  • Pregnant, lactating, or suspected pregnant patients, or male patients whose female partner is pregnant
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its identifier: NCT01753557

Toranomon Hospital
Kawasaki City, Takatsu-ku, Japan, 213-8587
Sponsors and Collaborators
Mitsubishi Tanabe Pharma Corporation
Study Director: Kazuoki Kondo, M.D. Mitsubishi Tanabe Pharma Corporation
  More Information

No publications provided

Responsible Party: Mitsubishi Tanabe Pharma Corporation Identifier: NCT01753557     History of Changes
Other Study ID Numbers: G060-A12
Study First Received: December 13, 2012
Last Updated: January 6, 2014
Health Authority: Japan: Ministry of Health, Labor and Welfare

Keywords provided by Mitsubishi Tanabe Pharma Corporation:

Additional relevant MeSH terms:
Hepatitis A
Hepatitis C
Hepatitis C, Chronic
Hepatitis, Chronic
Digestive System Diseases
Enterovirus Infections
Flaviviridae Infections
Hepatitis, Viral, Human
Liver Diseases
Picornaviridae Infections
RNA Virus Infections
Virus Diseases
Peginterferon alfa-2a
Anti-Infective Agents
Antiviral Agents
Immunologic Factors
Pharmacologic Actions
Physiological Effects of Drugs
Therapeutic Uses processed this record on November 20, 2014