Hepatitis C VirusMAPPINGNCT02597270
An Observational/Non-interventional, Study of NS3/4a Protease and NS5A Protein of Hepatitis C Virus in Brazilian Participants With Chronic HCV Infection
An observational study of Hepatitis C Virus, run by Janssen-Cilag Ltd. at 6 sites in Brazil.
Trial summary
The purpose of this study is to describe the genetic diversity of Hepatitis C virus (HCV) NS3/4a protease and NS5A protein of HCV in participants with chronic disease naive-drug or previously failed to double therapy (Peg-interferon and Ribavirin) and to identify the frequency of natural polymorphisms in HCV NS3/4a… Read more about this study
- Who is it for?
- Ages 18 to 65 years
- Conditions the study is for
- Hepatitis C Virus
- How many people
- 239 participants
- Where
- 6 sitesBrazil
- Study dates
- Mar 2016to Nov 2016
- Phase
- Observational
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 to 65 years
- All sexes
- No healthy volunteers
- Adult, Older adult
Study population: Brazilian participants with Genotype 1 HCV infection treatment naive patients or previously failed to double therapy (Peg-interferon-α and Ribavirin) will be included in the trial.
Who may be able to join
- Participants mono infected with chronic Hepatitis C infection (genotype 1), including naive patients or previously failed to double therapy (Peg-interferon-α and Ribavirin)
- There is no restriction on fibrosis stage or clinical liver disease
- There is no restriction for comorbidities
- Male or female participants with age >=18 years
Who cannot join
- Participants failed to triple therapy using protease inhibitors
- Participants with co-infections (i.e. Human immunodeficiency virus, Hepatitis B virus)
- Participants that are not agree to sign the written informed consent
- Participants is taking part in an interventional clinical trial with an investigational agent (i.e. non-commercialized agent) or in an interventional clinical trial sponsored by Johnson \& Johnson
Trial locations and contacts
6 sites in 1 country.
6 sites in 1 country
Brazil6 sites
Study site
Belém
Study site
Goiânia
Study site
Porto Alegre
Study site
Porto Velho
Study site
Salvador
Study site
São Paulo
About this study
Official title: Mapping Natural Polymorphisms of Hepatitis C Virus NS3/4A Protease and NS5A Region Among Brazilian Chronic Patients (MAPPING)
The purpose of this study is to describe the genetic diversity of Hepatitis C virus (HCV) NS3/4a protease and NS5A protein of HCV in participants with chronic disease naive-drug or previously failed to double therapy (Peg-interferon and Ribavirin) and to identify the frequency of natural polymorphisms in HCV NS3/4a protease and NS5A protein that are associated with direct-acting antivirals (DAAs)-resistance.
Read the detailed description
This is a multicenter, observational/non-interventional, cross-sectional study to describe the genetic diversity of and to identify the natural polymorphisms in HCV NS3/4a protease and NS5A protein of hepatitis C virus in Brazilian participants with chronic HCV infection. Brazilian participants with Genotype 1 HCV infection treatment naive participants or previously failed to double therapy (Peg-interferon-α and Ribavirin) will be included in the trial and will constitute the trial population.
- Conditions
- Hepatitis C Virus
- Keywords
- Hepatitis C virus
- Medical subject headings
- Hepatitis C
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
| Study group | Role | What they receive |
|---|---|---|
| Cohort 1 | Brazilian participants with Genotype 1 HCV infection treatment naive participants or previously failed to double therapy (Peg-interferon-α and Ribavirin) will be included in the trial and will constitute the trial population. |
What is being measured
The primary outcome is the main question the study is designed to answer.
Number of Participants With HCV NS3/4a Protease and NS5A Protein
After extraction of HCV RNA from collected blood samples, the sequences of the NS3/4A and NS5A genes of HCV will be amplified by reverse transcription polymerase chain reaction (RTPCR) using specific primers for each genomic region. PCR products will be sequenced subsequently by direct sequencing. Detection of natural polymorphisms will be analyzed a comparison of the each sequence with the subtype consensus sequence.
Measured: Day 1
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted5 Nov 2015 (estimated)
- Study startMar 2016
- Primary completionNov 2016
- Study completionNov 2016
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Hepatitis C VirusStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Observational
- Observational model
- Cohort
- Time perspective
- Retrospective
- Enrolment
- 239 participants (actual)
Sponsor and investigators
- Lead sponsor
- Janssen-Cilag Ltd.
- Sponsor type
- Industry (pharma, biotech, devices)
- Responsible party
- Sponsor
- Investigators
- Janssen-Cilag Ltd. Clinical Trial, Study director, Janssen-Cilag Ltd.
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT02597270
- Sponsor's protocol ID
- CR107065
- Other IDs
- TMC435HPC4012
- Acronym
- MAPPING
- Status last verified
- Feb 2017
- First submitted
- 3 Nov 2015
- Last updated
- 6 Feb 2017
- Results posted
- No
- Data monitoring committee
- No
Study at a glance
From the registry record, last updated by the sponsor on 6 Feb 2017. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Mapping Natural Polymorphisms of Hepatitis C Virus NS3/4A Protease and NS5A Region Among Brazilian Chronic Patients (MAPPING)
- ClinicalTrials.gov ID
- NCT02597270
- Acronym / sponsor ID
- MAPPING / CR107065
- Conditions
- Hepatitis C Virus
- Keywords
- Hepatitis C virus
- Study type
- Observational
- Recruitment status
- Completed
- Enrolment
- 239 participants (actual)
- Lead sponsor
- Janssen-Cilag Ltd.Industry (pharma, biotech, devices)
- Study start
- Mar 2016
- Primary completion
- Nov 2016 (actual)
- Study completion
- Nov 2016 (actual)
- First posted
- 5 Nov 2015 (estimated)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
The purpose of this study is to describe the genetic diversity of Hepatitis C virus (HCV) NS3/4a protease and NS5A protein of HCV in participants with chronic disease naive-drug or previously failed to double therapy (Peg-interferon and Ribavirin) and to identify the frequency of natural polymorphisms in HCV NS3/4a protease and NS5A protein that are associated with direct-acting antivirals (DAAs)-resistance.
Detailed description
This is a multicenter, observational/non-interventional, cross-sectional study to describe the genetic diversity of and to identify the natural polymorphisms in HCV NS3/4a protease and NS5A protein of hepatitis C virus in Brazilian participants with chronic HCV infection. Brazilian participants with Genotype 1 HCV infection treatment naive participants or previously failed to double therapy (Peg-interferon-α and Ribavirin) will be included in the trial and will constitute the trial population.
Study design
- Observational model
- Cohort
- Time perspective
- Retrospective
- Number of arms
- 1
| Arm | Type | Receives |
|---|---|---|
| Cohort 1 | – | –Brazilian participants with Genotype 1 HCV infection treatment naive participants or previously failed to double therapy (Peg-interferon-α and Ribavirin) will be included in the trial and will constitute the trial population. |
Who may qualify
- Ages
- 18 to 65 years
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
- Study population
- Brazilian participants with Genotype 1 HCV infection treatment naive patients or previously failed to double therapy (Peg-interferon-α and Ribavirin) will be included in the trial.
Key inclusion criteria (4 listed)
- Participants mono infected with chronic Hepatitis C infection (genotype 1), including naive patients or previously failed to double therapy (Peg-interferon-α and Ribavirin)
- There is no restriction on fibrosis stage or clinical liver disease
- There is no restriction for comorbidities
- Male or female participants with age >=18 years
Key exclusion criteria (4 listed)
- Participants failed to triple therapy using protease inhibitors
- Participants with co-infections (i.e. Human immunodeficiency virus, Hepatitis B virus)
- Participants that are not agree to sign the written informed consent
- Participants is taking part in an interventional clinical trial with an investigational agent (i.e. non-commercialized agent) or in an interventional clinical trial sponsored by Johnson \& Johnson
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Primary outcome
Number of Participants With HCV NS3/4a Protease and NS5A Protein
Time frame: Day 1
After extraction of HCV RNA from collected blood samples, the sequences of the NS3/4A and NS5A genes of HCV will be amplified by reverse transcription polymerase chain reaction (RTPCR) using specific primers for each genomic region. PCR products will be sequenced subsequently by direct sequencing. Detection of natural polymorphisms will be analyzed a comparison of the each sequence with the subtype consensus sequence.
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 6 Feb 2017.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Janssen-Cilag Ltd. Clinical Trial study director
Janssen-Cilag Ltd.
6 sites in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
An observational study of Hepatitis C Virus, run by Janssen-Cilag Ltd. at 6 sites in Brazil.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 4 inclusion and 4 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 6 Feb 2017. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 6 sites in Brazil. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Number of Participants With HCV NS3/4a Protease and NS5A Protein (time frame: Day 1). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 6 Feb 2017.