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New hope for hepatitis c: experimental drug combo shows promise

NCT ID NCT01753557

Disease control Sponsor: Tanabe Pharma Corporation Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed This study
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 26, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This completed Phase 3 trial tested an experimental drug called MP-424, combined with two standard hepatitis C medications (pegylated interferon and ribavirin), in 54 adults with genotype 1 hepatitis C. Participants were either new to treatment or had relapsed after previous therapy. The main goal was to see if the virus stayed undetectable 24 weeks after treatment ended (sustained viral response).

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

Active substance
MP-424 (an experimental antiviral drug) combined with pegylated interferon alfa-2a and ribavirin
What this could lead to
If successful, this combination could offer a new treatment option for people with genotype 1 hepatitis C who have not been treated before or who relapsed after prior therapy.
What could go wrong
This is a small, completed Phase 3 trial with only 54 participants, so results may not apply to everyone. The regimen includes interferon, which can cause significant side effects like flu-like symptoms and depression.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Phase

Phase 3

Large-scale testing in a bigger group. Usually the last step before a treatment can be approved.

Participants

54 people

The number who actually took part.

Start date

Dec 2012

Finished

Nov 2014

Lead sponsor

A company

The lead sponsor is a pharmaceutical, biotech, or medical-device company.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Ages

20 to 65 years

Sex

Anyone

Healthy volunteers

Not accepted

This study is not open to healthy volunteers. The entry requirements below say who it is open to.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

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

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Conditions

The condition(s) this trial relates to.

chronic hepatitis C virus infection hepatitis C virus infection

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Chronic hepatitis C (CHC)

Contacts and locations

Locations

  • Toranomon Hospital

    Kawasaki, Takatsu-ku, 213-8587, Japan

More trials for these conditions

Other studies related to the condition(s) this trial covers.