An Extension to Viral Kinetics Study of Telbivudine and Entecavir in Adults With Chronic Hepatitis B

This study is to evaluate the safety of telbivudine for up to 21 months of open-label treatment in patients with chronic hepatitis B who have completed the CLDT600A2407 trial. Patients treated with telbivudine during core phase will continue telbivudine and patients treated with entecavir during core phase will be switched to telbivudine if the patient is willing to enroll this study.

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Key information

Conditions

Chronic Hepatitis B Blood-Borne Infections Chronic Disease Communicable Diseases DNA Virus Infections Digestive System Diseases Disease Attributes Hepadnaviridae Infections Hepatitis Hepatitis B Hepatitis B, Chronic Hepatitis, Chronic Hepatitis, Viral, Human Infections Liver Diseases Pathologic Processes Pathological Conditions, Signs and Symptoms Virus Diseases

Age range

18 year–70 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Phase 4

Primary location

Novartis Investigative Site (705-035), Daegu, South Korea

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

The patient has completed the previous CLDT600A2407 study and is able to immediately enter this extension study with no study drug discontinuation
Patient is willing and able to comply with the study drug regimen and all other study requirements
The patient is willing and able to provide written informed consent to participate in the extension study.

Exclusion criteria

Patient is pregnant or breastfeeding.
Patient is co-infected with HCV, HDV, or HIV.
History of malignancy of any organ system, treated or untreated, within the past 5 years with the exception of localized basal cell carcinoma of the skin.

Other protocol-defined inclusion/exclusion criteria may apply.

Treatment and study plan

telbivudine

Drug

Primary outcomes

Safety of telbivudine (LDT600) up to 21 additional months of open-label treatment in patients with chronic hepatitis B who have completed study CLDT600A2407 assessed by Adverse Events, data of vital signs and other tests

Secondary outcomes

Safety of patients switched from entecavir to telbivudine compared with patients continuing telbivudine assessed by Adverse Events, data of vital signs and other tests

Sponsors and collaborators

Lead sponsor

Novartis Pharmaceuticals

Industry

Registry information

Official study title

An Extension to A Randomized, Open-label, Controlled, Multicenter, Exploratory Trial to Characterize the Results of Daily Oral Administration of Telbivudine (LDT600) 600 mg or Entecavir (ETV) 0.5 mg Given Over 12 Weeks on the Kinetics of Hepatitis B Virus (HBV) DNA in Adults With HBeAg-positive, Compensated Chronic Hepatitis B (CHB) (An Open-label Multicenter, follow-on Trial of the Safety of Oral Administration of Telbivudine (LDT600) 600 mg Over 21 Months in Adults With HBeAg-positive Ompensated Chronic Hepatitis B (CHB))

Important dates

Study start: 2007
Primary completion: 2009
Study completion: 2009
First posted: Apr 30, 2007
Registry last updated: Jun 23, 2017

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

Published trials that share one or more normalized conditions with this study.

Completed