Hepatitis C Virus Chronic InfectionNCT00272389
Prediction of Response to Treatment of Patients With Chronic HCV Infection by Genetic Profile
An observational study of Hepatitis C Virus Chronic Infection, run by Hadassah Medical Organization at 1 site in Israel.
Trial summary
We hypothesized that pretreatment nonresponder and responder liver tissue would show consistent differences in gene expression levels and that these differences could be used to predict treatment outcomes and this can obviate the need of the present therapeutic trial.We are interested in conducting a retrospective… Read more about this study
- Who is it for?
- Ages 18 to 80 years
- Conditions the study is for
- Hepatitis C Virus Chronic Infection
- How many people
- 150 participants
- Where
- 1 siteIsrael
- Study dates
- Mar 2006to May 2006
- 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 80 years
- All sexes
- No healthy volunteers
- Adult, Older adult
Who may be able to join
- PATIENTS COMPLETING TREATMENT WITH PEGINTERFERON AND RIBAVIRIN FOR CHRONIC HCV INFECTION AND UNDERWENT LIVER BIOPSY PRIOR THERAPY ONSET
Who cannot join
- TREATMENT NOT COMPLETED
Trial locations and contacts
1 site in 1 country.
Israel1 site
Hadassah Medical Organization
Jerusalem
Arik Tzukert, DMD, 00 972 2 6776095, arik@hadassah.org.il
Hadas Lemberg, PhD, : 00 972 2 6777572, lhadas@hadassah.org.il
About this study
Official title: Prediction of Response to PEGINTERFERON and RIBAVIRIN Treatment in Patients With Chronic HCV Infection by Genetic Profile
We hypothesized that pretreatment nonresponder and responder liver tissue would show consistent differences in gene expression levels and that these differences could be used to predict treatment outcomes and this can obviate the need of the present therapeutic trial.We are interested in conducting a retrospective study using the data of patients suffering from chronic HCV infection who were treated in our department with a combination of PEGINTERFERON and RIBAVIRIN. All these patients underwent liver biopsy prior the treatment. Based on the clinical data available it is possible to determine the responders and nonresponders to this therapy.RNA will be extracted from the liver tissue and the expression of 5 genes(IFI15,IFI616,IFI1,OAS3,OAS2 )will be checked .The prediction power of the combination of these genes in differentiating responders from nonresponders will be determined.
Read the detailed description
Hepatitis C virus is a leading cause of chronic liver disease, with over 170 million people infected worldwide. It is also the leading indication for liver transplantation. Complications from chronic hepatitis C infection include cirrhosis, hepatic decompensation, and hepatocellular carcinoma. As a result, treatment strategies to prevent such complications have been widely researched, although many questions remain unanswered. To date, the standard therapy for chronic hepatitis C infection is the combination of peginterferon and .ribavirin.A large proportion of patients do not respond to therapy for reasons that are unclear. The heterogeneity of viral and host phenotypes makes it unlikely that any single factor will accurately predict the cellular response to treatment.It was supposed that liver tissue of nonresponder and responder show consistent differences in gene expression levels and that these differences could be used to predict treatment outcomes.Hepatic gene expression profiling identified consistent differences in patients who subsequently fail treatment with pegylated IFN-α plus ribavirin: up-regulation of a specific set of IFN-responsive genes predicts nonresponse to exogenous therapy. These data may be of use in predicting clinical responses to treatment. 18 genes, confirmed by real-time PCR, with expression levels that differed consistently between nonresponders and responders liver tissue were detected. Levels for these 18 genes in responders liver were closer to uninfected tissue than to nonresponders liver, with a general up-regulation of gene expression in nonresponders liver. Many of these genes are IFN responsive, suggesting that the nonresponders patients have adopted a different, yet characteristic, equilibrium in their host-virus immune response(Chen L et al. Gastroentology 2005:128:1437-1444) We have found a method that can predict success or failure of the treatment of chronic hepatitis C based on the weighted expression level of a small number of genes (4-5) We derive the genes and their decision weights from the microarray data set obtained from the liver biopsy of the patients in the above mentioned paper . We would like to test the prediction power of this method in an independent set of liver tissues of treated patients in our department.
- Conditions
- Hepatitis C Virus Chronic Infection
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted6 Jan 2006 (estimated)
- Study startMar 2006
- Study completionMay 2006 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (1)Papers the sponsor has linked to this study.
- Other trials for Hepatitis C Virus Chronic InfectionStudies of the same condition, open and under way.
- More trials run by Hadassah Medical OrganizationThe sponsor's other registered studies.
- 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
- Defined population
- Time perspective
- Other
- Enrolment
- 150 participants (estimated)
Sponsor and investigators
- Lead sponsor
- Hadassah Medical Organization
- Sponsor type
- University, hospital or other
- Investigators
- Yaron Ilan, MD, Principal investigator, Hadassah Medical Organization
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT00272389
- Sponsor's protocol ID
- tBEB1t-HMO-CTIL
- Status last verified
- Jan 2006
- First submitted
- 4 Jan 2006
- Last updated
- 6 Jan 2006
- Results posted
- No
Publications
Chen L, Borozan I, Feld J, Sun J, Tannis LL, Coltescu C, Heathcote J, Edwards AM, McGilvray ID. Hepatic gene expression discriminates responders and nonresponders in treatment of chronic hepatitis C viral infection. Gastroenterology. 2005 May;128(5):1437-44. doi: 10.1053/j.gastro.2005.01.059.
PubMed 15887125
Study at a glance
From the registry record, last updated by the sponsor on 6 Jan 2006. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Prediction of Response to PEGINTERFERON and RIBAVIRIN Treatment in Patients With Chronic HCV Infection by Genetic Profile
- ClinicalTrials.gov ID
- NCT00272389
- Acronym / sponsor ID
- tBEB1t-HMO-CTIL
- Conditions
- Hepatitis C Virus Chronic Infection
- Study type
- Observational
- Recruitment status
- Unknown status
- Enrolment
- 150 participants (estimated)
- Lead sponsor
- Hadassah Medical OrganizationUniversity, hospital or other
- Study start
- Mar 2006
- Study completion
- May 2006 (estimated)
- First posted
- 6 Jan 2006 (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.
We hypothesized that pretreatment nonresponder and responder liver tissue would show consistent differences in gene expression levels and that these differences could be used to predict treatment outcomes and this can obviate the need of the present therapeutic trial.We are interested in conducting a retrospective study using the data of patients suffering from chronic HCV infection who were treated in our department with a combination of PEGINTERFERON and RIBAVIRIN. All these patients underwent liver biopsy prior the treatment. Based on the clinical data available it is possible to determine the responders and nonresponders to this therapy.RNA will be extracted from the liver tissue and the expression of 5 genes(IFI15,IFI616,IFI1,OAS3,OAS2 )will be checked .The prediction power of the combination of these genes in differentiating responders from nonresponders will be determined.
Detailed description
Hepatitis C virus is a leading cause of chronic liver disease, with over 170 million people infected worldwide. It is also the leading indication for liver transplantation. Complications from chronic hepatitis C infection include cirrhosis, hepatic decompensation, and hepatocellular carcinoma. As a result, treatment strategies to prevent such complications have been widely researched, although many questions remain unanswered. To date, the standard therapy for chronic hepatitis C infection is the combination of peginterferon and .ribavirin.A large proportion of patients do not respond to therapy for reasons that are unclear. The heterogeneity of viral and host phenotypes makes it unlikely that any single factor will accurately predict the cellular response to treatment.It was supposed that liver tissue of nonresponder and responder show consistent differences in gene expression levels and that these differences could be used to predict treatment outcomes.Hepatic gene expression profiling identified consistent differences in patients who subsequently fail treatment with pegylated IFN-α plus ribavirin: up-regulation of a specific set of IFN-responsive genes predicts nonresponse to exogenous therapy. These data may be of use in predicting clinical responses to treatment. 18 genes, confirmed by real-time PCR, with expression levels that differed consistently between nonresponders and responders liver tissue were detected. Levels for these 18 genes in responders liver were closer to uninfected tissue than to nonresponders liver, with a general up-regulation of gene expression in nonresponders liver. Many of these genes are IFN responsive, suggesting that the nonresponders patients have adopted a different, yet characteristic, equilibrium in their host-virus immune response(Chen L et al. Gastroentology 2005:128:1437-1444) We have found a method that can predict success or failure of the treatment of chronic hepatitis C based on the weighted expression level of a small number of genes (4-5) We derive the genes and their decision weights from the microarray data set obtained from the liver biopsy of the patients in the above mentioned paper . We would like to test the prediction power of this method in an independent set of liver tissues of treated patients in our department.
Study design
- Observational model
- Defined population
- Time perspective
- Other
Who may qualify
- Ages
- 18 to 80 years
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (1 listed)
- PATIENTS COMPLETING TREATMENT WITH PEGINTERFERON AND RIBAVIRIN FOR CHRONIC HCV INFECTION AND UNDERWENT LIVER BIOPSY PRIOR THERAPY ONSET
Key exclusion criteria (1 listed)
- TREATMENT NOT COMPLETED
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
Not reported in the source record.
Results and safety
Results are not available in the source record.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 6 Jan 2006.
- Background: PubMed 15887125Chen L, Borozan I, Feld J, Sun J, Tannis LL, Coltescu C, Heathcote J, Edwards AM, McGilvray ID. Hepatic gene expression discriminates responders and nonresponders in treatment of chronic hepatitis C viral infection. Gastroenterology. 2005 May;128(5):1437-44. doi: 10.1053/j.gastro.2005.01.059.
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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.
Yaron Ilan, MD principal investigator
Hadassah Medical Organization
1 site 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 Chronic Infection, run by Hadassah Medical Organization at 1 site in Israel.
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 1 inclusion and 1 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: status not confirmed, as of the sponsor's last update on 6 Jan 2006. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in Israel. 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?
Results are not available in the source record.
How can a doctor refer a patient or contact the research team?
Contact Yaron Ilan, MD (00972 2 6778231, ilan@hadassah.org.il), or a site near the patient. AzTrials does not enrol participants or take referrals.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT00272389, which also lists 1 linked publication.
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 Jan 2006.