Hepatitis B Infection Clinical Trial
Official title:
A Study to Describe the Antiviral Effect of Entecavir (ETV) in Blacks/African Americans and Hispanics With Chronic Hepatitis B Virus (HBV) Infection Who Are Nucleoside-Naive
Verified date | March 2012 |
Source | Bristol-Myers Squibb |
Contact | n/a |
Is FDA regulated | No |
Health authority | United States: Food and Drug Administration |
Study type | Interventional |
The purpose of this clinical research study is to develop observational clinical experience with the use of entecavir in participants who are either of Black/African-American race or of Hispanic ethnicity.
Status | Completed |
Enrollment | 131 |
Est. completion date | March 2011 |
Est. primary completion date | March 2011 |
Accepts healthy volunteers | No |
Gender | Both |
Age group | 16 Years and older |
Eligibility |
Inclusion Criteria: - Chronic HBV infection, with either HBeAg-positive (HBeAb-negative) or HBeAg-negative (HBeAb-positive) disease - Black/African American Race and/or Hispanic ethnicity - Nucleoside/tide-naive - Males or females = 16 years of age (or minimum age required in a given country) - Compensated liver function - ALT of 1.3 to 10 x upper limit of normal (ULN) - No Co-infection with human immunodeficiency virus (HIV), hepatitis C virus (HCV) or hepatitis D virus (HDV) Exclusion Criteria - Women of childbearing potential (WOCBP) who are unwilling or unable to use an acceptable method to avoid pregnancy for the entire study period and for up to 6 weeks after study medication has been discontinued - Women who are pregnant or breastfeeding - Women with a positive pregnancy test on enrollment or prior to study drug administration - Evidence of decompensated cirrhosis including but not limited to: variceal bleeding; hepatic encephalopathy; or ascites requiring management with diuretics or paracentesis - Recent history of pancreatitis (resolution of any recent pancreatitis must be documented by normal lipase at least 12 weeks prior to the first dose of study medication) - Currently abusing illegal drugs or alcohol sufficient, in the investigator's opinion, to prevent adequate compliance with study therapy or to increase the risk of hepatotoxicity or pancreatitis - Other serious medical conditions that might preclude completion of this study or that require chronic administration of prohibited medications - Serum creatinine > 1.5 mg/dL - Hemoglobin < 10.0 g/dL - Platelet count < 70,000/mm3 - Absolute neutrophil count < 1200 cells/mm3 - Serum alpha fetoprotein (AFP) level > 100 ng/mL. If the AFP level is between 21 and 100 ng/mL, it must be repeated. If the repeat AFP level is between 21 and 100 ng/mL and if ultrasonography or computerized tomography (CT) of the liver performed prior to the first dose of study medication does not demonstrate a focal lesion suggestive of carcinoma, the subject may be dosed in the study - Known history of allergy to nucleoside analogues - Any prior therapy with Entecavir - Any prior or concomitant use of nucleoside or nucleotide analogue antiviral agents with activity against hepatitis B (e.g., ETV, lamivudine (LVD), tenofovir [TDF], emtricitabine (FTC), clevudine, telbivudine [LdT], famciclovir), or any other experimental anti-HBV antiviral agent - Therapy with interferon, thymosin alpha or other immunostimulators within 24 weeks of enrollment (i.e., dosing) into this study - Subjects who require chronic administration of concomitant medications which cause immunosuppression or which are associated with a high rate of nephrotoxicity or hepatotoxicity, or which affect renal excretion, should not be enrolled in this study - Unable to tolerate oral medication - Poor peripheral venous access - Prisoners or subjects who are compulsorily detained (involuntarily incarcerated) for treatment of either a psychiatric or physical (e.g., infectious disease) illness must not be enrolled into this study |
Allocation: Non-Randomized, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Single Group Assignment, Masking: Open Label, Primary Purpose: Treatment
Country | Name | City | State |
---|---|---|---|
Brazil | Local Institution | Belo Horizonte - Mg | Minas Gerais |
Brazil | Local Institution | Campinas | Sao Paulo |
Brazil | Local Institution | Rio De Janeiro - Rj | Rio De Janeiro |
Brazil | Local Institution | Salvador | Bahia |
Brazil | Local Institution | Sao Paulo - Sp | Sao Paulo |
Mexico | Local Institution | Df | Distrito Federal |
Mexico | Local Institution | Guadalajara | Jalisco |
Mexico | Local Institution | Guadalajara | Jalisco |
Mexico | Local Institution | Guadalajara | Jalisco |
Mexico | Local Institution | Zapopan | Jalisco |
Puerto Rico | Local Institution | Santurce | |
South Africa | Local Institution | Belville | Western Cape |
South Africa | Local Institution | Goodwood | Western Cape |
United States | Brigham And Women'S Hospital | Boston | Massachusetts |
United States | University Of Chicago | Chicago | Illinois |
United States | Banks Hepatology Institute, Pc | College Park | Maryland |
United States | Empire International Research | Miami | Florida |
United States | University Of Miami | Miami | Florida |
United States | Alabama Liver & Digestive Specialists (Alds) | Montgomery | Alabama |
United States | Va New York Harbor Healthcare System | New York | New York |
United States | Albert Einstein Healthcare Network | Philadelphia | Pennsylvania |
United States | Hunter Holmes Mcguire D V A M C | Richmond | Virginia |
United States | Alamo Medical Research | San Antonio | Texas |
United States | L L C Bda The Research Institute | Springfield | Massachusetts |
United States | University Of Arizona | Tucson | Arizona |
United States | George Washington University Medical Center | Washington | District of Columbia |
United States | Westchester Digestive Disease Group, Llp | Yonkers | New York |
Lead Sponsor | Collaborator |
---|---|
Bristol-Myers Squibb |
United States, Brazil, Mexico, Puerto Rico, South Africa,
Type | Measure | Description | Time frame | Safety issue |
---|---|---|---|---|
Primary | Percentage of Participants With HBV Deoxyribonucleic Acid (DNA) < 50 IU/mL by Polymerase Chain Reaction (PCR) at Week 48 | HBV DNA assessments were performed using the Roche COBAS® TaqMan AmpliPrep assay. HBV DNA < 50 IU/mL = approximately <300 copies/mL. | Week 48 of ETV treatment | No |
Secondary | Percentage of Participants Who Achieve HBV DNA < Lower Limit of Quantitation (LOQ = 29 IU/mL [Approximately 169 Copies/mL]) at Week 48 | HBV DNA assessments were performed using the Roche COBAS® TaqMan AmpliPrep assay. LOQ is the level above which quantitative results may be obtained with a specified degree of confidence. The LOQ is mathematically defined as equal to 10 times the standard deviation of the results for a series of replicates used to determine a justifiable limit of detection. | Week 48 | No |
Secondary | Percentage of Participants With HBV DNA by PCR Category at Week 48 | HBV DNA assessments were performed using the Roche COBAS® TaqMan AmpliPrep assay. | Week 48 | No |
Secondary | Percentage of Participants With Virologic Rebound Through Week 48 While on Continued Dosing With ETV | Virologic rebound is defined as a confirmed increase of = 1 log10 in HBV DNA from the participant's nadir value (2 sequential HBV DNA measurements or last on-treatment measurement) | through Week 48 | No |
Secondary | Percentage of Participants With Alanine Aminotransferase (ALT) Normalization at Week 48 | ALT normalization=ALT level being less than or equal to 1 times the upper limit of normal (ULN). ULN for ALT is 37 U/L. | Week 48 | No |
Secondary | Percentage of Participants With Confirmed HBeAg Loss at Week 48 (for HBeAg-positive Participants Only) | HBeAg is a hepatitis B viral protein. HBeAg loss = HBeAg-negative at the specified analysis week | Week 48 | No |
Secondary | Percentage of Participants With HBeAg Seroconversion at Week 48 (for HBeAg-positive Participants Only) | HBeAg is a hepatitis B viral protein. HBeAg Seroconversion = HBeAg Loss and Presence of Hepatitis B e Antibody (HBeAb). | Week 48 | No |
Secondary | Percentage of Participants With Hepatitis B Surface Antigen (HBsAg) Loss at Week 48 | HBsAg = a part of the hepatitis B virus that, when in the blood, is a marker of infection. HBsAg loss = HBsAg-negative at the specified analysis week. | Week 48 | No |
Secondary | Percentage of Participants With HBsAg Seroconversion at Week 48 | HBsAg = a part of the hepatitis B virus that, when in the blood, is a of infection. HBs seroconversion is defined as HBsAg loss with positive HBsAb. | Week 48 | No |
Secondary | Mean log10 Reduction From Baseline in HBV DNA at Week 48 | HBV DNA was analyzed by PCR, using the Roche COBAS®TaqMan TaqMan AmpliPrep assay. Reduction in log10 HBV count=reduced viral load. | baseline, Week 48 | No |
Secondary | Percentage of Participants With HBV DNA < Other IU Cut-off Points That May be Clinically Relevant at the Time of Data Analysis | Week 48 | No | |
Secondary | Number of Participants With Adverse Events (AE), Serious Adverse Events (SAE), and Discontinuations From Study Drug Due to Adverse Events | AE: any new untoward medical occurrence/worsening of pre-existing medical condition, whether or not related to study drug. SAE: any AE that resulted in death; was life threatening; resulted in persistent/significant disability/incapacity; resulted in/prolonged an existing in-patient hospitalization; was a congenital anomaly/birth defect; or was an overdose. Participants who discontinued the study due to any AEs were recorded. | From enrollment through Week 52 + 5 days | Yes |
Secondary | Number of Participants With Laboratory Abnormalities On-treatment (OT) and Off-Treatment (OF): Hematology | Criteria for hematology abnormalities were graded using the modified WHO grading system. Hemoglobin: <=11.0 g/dL; White Blood Cells: <4000/mm^3; Absolute Neutrophils (includes absolute bands): <1500/mm^3; Platelets: <=99,000/mm^3; International Normalized Ratio: = 1.5 and = 0.5 from baseline. | OT: From start of study therapy through Week 52 + 5 days; OF= End of OT period + 24-week follow-up | Yes |
Secondary | Number of Participants With Laboratory Abnormalities On-treatment (OT) and Off-Treatment (OF) : Serum Chemistry | The modified World Health Oranization(WHO)grading system was used to grade the abnormalities. ULN=upper limit of normal. Alanine aminotransferase:>1.25xULN, Aspartate aminotransferase:>1.25xULN, Alkaline Phosphatase:>1.25xULN, Total Bilirubin:>1.1xULN, Serum Lipase:>1.10xULN, Creatinine:>1.1xULN, Blood Urea Nitrogen:1.25xULN, Hyperglycemia:>116 mg/dL, Hypoglycemia:<64 mg/dL, Hyponatremia:<132meq/L, Hypokalemia:<3.4 meq/L, Albumin:=1g/dL decrease from baseline, <3 g/dL; Hypernatremia:>148 meq/L, Hyperkalemia:>5.6 meq/L, Hypokalemia:<3.4 meq/L, Hyperchloremia:>113 meq/L, Hypochloremia:<93 meq/L | OT: From start of study therapy through Week 52 + 5 days; OF= End of OT period + 24-week follow-up | Yes |
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