Trial Outcomes & Findings for Treatment of Persistent Viremia (Virus in Blood) in Chronic Hepatitis B Subjects Already Receiving Adefovir Dipivoxil (NCT NCT00307489)

NCT ID: NCT00307489

Last Updated: 2011-11-01

Results Overview

Recruitment status

COMPLETED

Study phase

PHASE2

Target enrollment

106 participants

Primary outcome timeframe

48 weeks

Results posted on

2011-11-01

Participant Flow

A total of 106 subjects were randomized (105 of which were subsequently treated) across 28 study centers in the US, Germany, France and Spain between 24 April 2006 and 07 March 2007.

Participant milestones

Participant milestones
Measure
Tenofovir DF
tenofovir DF 300 mg QD
Emtricitibine/Tenofovir DF
emtricitabine 200 mg / tenofovir DF 300 mg QD (combination tablet)
Baseline Through Week 48
STARTED
53
52
Baseline Through Week 48
COMPLETED
52
50
Baseline Through Week 48
NOT COMPLETED
1
2
Week 48 Through Week 168
STARTED
52
50
Week 48 Through Week 168
COMPLETED
46
44
Week 48 Through Week 168
NOT COMPLETED
6
6

Reasons for withdrawal

Reasons for withdrawal
Measure
Tenofovir DF
tenofovir DF 300 mg QD
Emtricitibine/Tenofovir DF
emtricitabine 200 mg / tenofovir DF 300 mg QD (combination tablet)
Baseline Through Week 48
Lost to Follow-up
0
1
Baseline Through Week 48
Physician Decision
1
0
Baseline Through Week 48
Withdrawal by Subject
0
1
Week 48 Through Week 168
Adverse Event
1
0
Week 48 Through Week 168
Physician Decision
1
0
Week 48 Through Week 168
Withdrawal by Subject
1
2
Week 48 Through Week 168
Lack of Efficacy
2
2
Week 48 Through Week 168
Death
0
1
Week 48 Through Week 168
Lost to Follow-up
0
1
Week 48 Through Week 168
Seroconversion
1
0

Baseline Characteristics

Treatment of Persistent Viremia (Virus in Blood) in Chronic Hepatitis B Subjects Already Receiving Adefovir Dipivoxil

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Tenofovir DF
n=53 Participants
tenofovir DF 300 mg QD
Emtricitibine/Tenofovir DF
n=52 Participants
emtricitabine 200 mg / tenofovir DF 300 mg QD (combination tablet)
Total
n=105 Participants
Total of all reporting groups
Age Continuous
40 years
STANDARD_DEVIATION 11.4 • n=5 Participants
39 years
STANDARD_DEVIATION 10.4 • n=7 Participants
39 years
STANDARD_DEVIATION 10.9 • n=5 Participants
Sex: Female, Male
Female
15 Participants
n=5 Participants
10 Participants
n=7 Participants
25 Participants
n=5 Participants
Sex: Female, Male
Male
38 Participants
n=5 Participants
42 Participants
n=7 Participants
80 Participants
n=5 Participants
Race/Ethnicity, Customized
Asian
26 Participants
n=5 Participants
18 Participants
n=7 Participants
44 Participants
n=5 Participants
Race/Ethnicity, Customized
Black or African American
2 Participants
n=5 Participants
8 Participants
n=7 Participants
10 Participants
n=5 Participants
Race/Ethnicity, Customized
White
23 Participants
n=5 Participants
21 Participants
n=7 Participants
44 Participants
n=5 Participants
Race/Ethnicity, Customized
Other
2 Participants
n=5 Participants
5 Participants
n=7 Participants
7 Participants
n=5 Participants
Previous Lamivudine Experience
Yes
30 participants
n=5 Participants
31 participants
n=7 Participants
61 participants
n=5 Participants
Previous Lamivudine Experience
No
23 participants
n=5 Participants
21 participants
n=7 Participants
44 participants
n=5 Participants
Baseline HBV DNA
6.06 log10 copies/mL
STANDARD_DEVIATION 1.430 • n=5 Participants
5.87 log10 copies/mL
STANDARD_DEVIATION 1.779 • n=7 Participants
5.97 log10 copies/mL
STANDARD_DEVIATION 1.607 • n=5 Participants

PRIMARY outcome

Timeframe: 48 weeks

Population: Randomized and Treated (RAT) subjects at Week 48 - Non-Completers=Failure (ie, includes subjects who switched to open-label FTC/TDF at or after Week 24)

Outcome measures

Outcome measures
Measure
Tenofovir DF
n=53 Participants
tenofovir DF 300 mg QD
Emtricitibine/Tenofovir DF
n=52 Participants
emtricitabine 200 mg / tenofovir DF 300 mg QD (combination tablet)
Percentage of Participants With Plasma HBV DNA < 169 Copies/mL at Week 48
75.5 percentage of participants
69.2 percentage of participants

PRIMARY outcome

Timeframe: 48 Weeks

Population: RAT Analysis Set Non-Completers=Failure

Outcome measures

Outcome measures
Measure
Tenofovir DF
n=53 Participants
tenofovir DF 300 mg QD
Emtricitibine/Tenofovir DF
n=52 Participants
emtricitabine 200 mg / tenofovir DF 300 mg QD (combination tablet)
Percentage of Participants With Plasma HBV DNA < 400 Copies/mL at Week 48
81.1 percentage of participants
80.8 percentage of participants

SECONDARY outcome

Timeframe: 48 Weeks

Population: RAT Analysis Set

Outcome measures

Outcome measures
Measure
Tenofovir DF
n=52 Participants
tenofovir DF 300 mg QD
Emtricitibine/Tenofovir DF
n=50 Participants
emtricitabine 200 mg / tenofovir DF 300 mg QD (combination tablet)
Change From Baseline in log10 Plasma HBV DNA Levels at Week 48
-3.58 log10 copies/mL
Standard Deviation 1.290
-3.34 log10 copies/mL
Standard Deviation 1.753

SECONDARY outcome

Timeframe: 48 Weeks

Population: RAT Analysis Set

Outcome measures

Outcome measures
Measure
Tenofovir DF
n=50 Participants
tenofovir DF 300 mg QD
Emtricitibine/Tenofovir DF
n=50 Participants
emtricitabine 200 mg / tenofovir DF 300 mg QD (combination tablet)
Change From Baseline in Alanine Aminotransferase (ALT) Levels at Week 48
-21.6 U/mL
Standard Deviation 54.53
-41.4 U/mL
Standard Deviation 151.67

SECONDARY outcome

Timeframe: 48 Weeks

Population: RAT Analysis Set Non-Completers=Failure

ULN for males = 43 U/L; 34 U/L for females

Outcome measures

Outcome measures
Measure
Tenofovir DF
n=51 Participants
tenofovir DF 300 mg QD
Emtricitibine/Tenofovir DF
n=52 Participants
emtricitabine 200 mg / tenofovir DF 300 mg QD (combination tablet)
Percentage of Participants With Normal ALT at Week 48
66.7 percentage of participants
73.1 percentage of participants

SECONDARY outcome

Timeframe: 48 Weeks

Population: RAT Analysis Set - subjects with ALT above ULN at baseline. Non-Completers=Failure

Subjects with elevated ALT at baseline that return to normal by Week 48.

Outcome measures

Outcome measures
Measure
Tenofovir DF
n=27 Participants
tenofovir DF 300 mg QD
Emtricitibine/Tenofovir DF
n=26 Participants
emtricitabine 200 mg / tenofovir DF 300 mg QD (combination tablet)
Percentage of Participants With Normalized ALT at Week 48
40.7 percentage of participants
61.5 percentage of participants

SECONDARY outcome

Timeframe: 48 Weeks

Population: RAT Analysis Set with Positive HBeAg at Baseline. Non-Completers=Failure

Defined as having negative serum HBeAg for subjects with positive HBeAg at baseline.

Outcome measures

Outcome measures
Measure
Tenofovir DF
n=38 Participants
tenofovir DF 300 mg QD
Emtricitibine/Tenofovir DF
n=39 Participants
emtricitabine 200 mg / tenofovir DF 300 mg QD (combination tablet)
Hepatitis B Early Antigen (HBeAg) Loss at Week 48
3 participants
3 participants

SECONDARY outcome

Timeframe: 48 Weeks

Population: RAT Analysis Set with Positive Baseline HBeAg. Non-Completers=Failure

Defined as having negative serum HBeAg and positive serum antibody to HBeAg \[anti-HBe\] for subjects with positive serum HBeAg at baseline.

Outcome measures

Outcome measures
Measure
Tenofovir DF
n=38 Participants
tenofovir DF 300 mg QD
Emtricitibine/Tenofovir DF
n=39 Participants
emtricitabine 200 mg / tenofovir DF 300 mg QD (combination tablet)
HBeAg Seroconversion at Week 48
2 participants
3 participants

SECONDARY outcome

Timeframe: 48 Weeks

Population: RAT Analysis Set Non-Completers=Failure

Defined as having negative serum HBsAg for subjects with positive HBsAg at baseline.

Outcome measures

Outcome measures
Measure
Tenofovir DF
n=53 Participants
tenofovir DF 300 mg QD
Emtricitibine/Tenofovir DF
n=51 Participants
emtricitabine 200 mg / tenofovir DF 300 mg QD (combination tablet)
HBsAg Loss at Week 48
1 participants
0 participants

SECONDARY outcome

Timeframe: 48 Weeks

Population: RAT Analysis Set Non-Completers=Failure

Defined as having negative serum HBsAg and positive serum antibody to HBsAg \[anti-HBs\] for subject with positive serum HBsAg at baseline.

Outcome measures

Outcome measures
Measure
Tenofovir DF
n=53 Participants
tenofovir DF 300 mg QD
Emtricitibine/Tenofovir DF
n=51 Participants
emtricitabine 200 mg / tenofovir DF 300 mg QD (combination tablet)
Hepatitis B Surface Antigen (HBsAg) Seroconversion at Week 48
1 participants
0 participants

SECONDARY outcome

Timeframe: 168 weeks

Population: Non-completers = failure analysis

Outcome measures

Outcome measures
Measure
Tenofovir DF
n=53 Participants
tenofovir DF 300 mg QD
Emtricitibine/Tenofovir DF
n=52 Participants
emtricitabine 200 mg / tenofovir DF 300 mg QD (combination tablet)
Change From Baseline in log10 Plasma HBV DNA Levels at Week 168
-3.79 log10 copies/mL
Standard Deviation 1.305
-3.48 log10 copies/mL
Standard Deviation 1.629

SECONDARY outcome

Timeframe: 168 weeks

Population: Non-completers = failure analysis

Outcome measures

Outcome measures
Measure
Tenofovir DF
n=53 Participants
tenofovir DF 300 mg QD
Emtricitibine/Tenofovir DF
n=52 Participants
emtricitabine 200 mg / tenofovir DF 300 mg QD (combination tablet)
Change From Baseline in Alanine Aminotransferase (ALT) Levels at Week 168
-26.8 U/mL
Standard Deviation 60.23
-54.5 U/mL
Standard Deviation 141.63

SECONDARY outcome

Timeframe: 168 weeks

Population: Non-completers = failure analysis

Outcome measures

Outcome measures
Measure
Tenofovir DF
n=53 Participants
tenofovir DF 300 mg QD
Emtricitibine/Tenofovir DF
n=52 Participants
emtricitabine 200 mg / tenofovir DF 300 mg QD (combination tablet)
Percentage of Participants With Plasma HBV DNA < 400 Copies/mL at Week 168
82.4 Percent of Participants
84.0 Percent of Participants

SECONDARY outcome

Timeframe: 168 weeks

Population: Non-completers = failure analysis

ULN for males = 43 U/L; ULN for females = 34 U/L

Outcome measures

Outcome measures
Measure
Tenofovir DF
n=50 Participants
tenofovir DF 300 mg QD
Emtricitibine/Tenofovir DF
n=50 Participants
emtricitabine 200 mg / tenofovir DF 300 mg QD (combination tablet)
Percentage of Participants With Normal ALT at Week 168
74.0 Percent of Participants
74.0 Percent of Participants

SECONDARY outcome

Timeframe: 168 weeks

Subjects with elevated ALT at baseline that return to normal by Week 48.

Outcome measures

Outcome measures
Measure
Tenofovir DF
n=25 Participants
tenofovir DF 300 mg QD
Emtricitibine/Tenofovir DF
n=24 Participants
emtricitabine 200 mg / tenofovir DF 300 mg QD (combination tablet)
Percentage of Participants With Normalized ALT at Week 168
68.0 Percent of Participants
70.8 Percent of Participants

SECONDARY outcome

Timeframe: 168 weeks

Population: Non-completer = Failure Analysis

Defined as having negative serum HBeAg for subjecst with positive HBeAg at baseline.

Outcome measures

Outcome measures
Measure
Tenofovir DF
n=37 Participants
tenofovir DF 300 mg QD
Emtricitibine/Tenofovir DF
n=37 Participants
emtricitabine 200 mg / tenofovir DF 300 mg QD (combination tablet)
Hepatitis B Early Antigen (HBeAg) Loss at Week 168
21.6 Percent of Participants
24.3 Percent of Participants

SECONDARY outcome

Timeframe: 168 weeks

Population: Non-completer = Failure Analysis

Defined as having negative serum BHsAg and positive serum antibody to HBsAg (anti-HBs) for subject with positive serum BHsAg at baseline.

Outcome measures

Outcome measures
Measure
Tenofovir DF
n=51 Participants
tenofovir DF 300 mg QD
Emtricitibine/Tenofovir DF
n=51 Participants
emtricitabine 200 mg / tenofovir DF 300 mg QD (combination tablet)
Hepatitis B Surface Antigen (HBsAg) Seroconversion at Week 168
1 Participants
0 Participants

SECONDARY outcome

Timeframe: 168 weeks

Defined as having negative serum HBsAg for subjects with positive HBsAg at baseline.

Outcome measures

Outcome measures
Measure
Tenofovir DF
n=51 Participants
tenofovir DF 300 mg QD
Emtricitibine/Tenofovir DF
n=51 Participants
emtricitabine 200 mg / tenofovir DF 300 mg QD (combination tablet)
HBsAg Loss at Week 168
1 Participants
0 Participants

SECONDARY outcome

Timeframe: 168 weeks

Population: Non-completers = failure analysis

P-values were from a Cochran-Mantel-Haenszel test, controlling for baseline HBeAg status and prior lamivudine use.

Outcome measures

Outcome measures
Measure
Tenofovir DF
n=51 Participants
tenofovir DF 300 mg QD
Emtricitibine/Tenofovir DF
n=50 Participants
emtricitabine 200 mg / tenofovir DF 300 mg QD (combination tablet)
Percentage of Participants With Plasma HBV DNA < 169 Copies/mL at Week 168
80.4 Percent of Participants
78.0 Percent of Participants

Adverse Events

Tenofovir DF

Serious events: 6 serious events
Other events: 49 other events
Deaths: 0 deaths

Emtricitibine/Tenofovir DF

Serious events: 10 serious events
Other events: 42 other events
Deaths: 0 deaths

Serious adverse events

Serious adverse events
Measure
Tenofovir DF
tenofovir DF 300 mg QD
Emtricitibine/Tenofovir DF
emtricitabine 200 mg / tenofovir DF 300 mg QD (combination tablet)
Investigations
Alanine Aminotransferase Increased
0.00%
0/53 • 168 weeks
3.8%
2/52 • 168 weeks
Psychiatric disorders
Alcoholism
0.00%
0/53 • 168 weeks
1.9%
1/52 • 168 weeks
Blood and lymphatic system disorders
Anaemia
1.9%
1/53 • 168 weeks
0.00%
0/52 • 168 weeks
Infections and infestations
Appendicitis
0.00%
0/53 • 168 weeks
1.9%
1/52 • 168 weeks
Cardiac disorders
Atrial Fibrillation
0.00%
0/53 • 168 weeks
1.9%
1/52 • 168 weeks
Reproductive system and breast disorders
Bartholinitis
0.00%
0/53 • 168 weeks
1.9%
1/52 • 168 weeks
Nervous system disorders
Carotid Arteriosclerosis
1.9%
1/53 • 168 weeks
0.00%
0/52 • 168 weeks
Nervous system disorders
Cerebrovascular Accident
0.00%
0/53 • 168 weeks
1.9%
1/52 • 168 weeks
General disorders
Chest Pain
1.9%
1/53 • 168 weeks
0.00%
0/52 • 168 weeks
Infections and infestations
Chronic Sinusitis
0.00%
0/53 • 168 weeks
1.9%
1/52 • 168 weeks
Gastrointestinal disorders
Colitis ulcerative
1.9%
1/53 • 168 weeks
0.00%
0/52 • 168 weeks
Respiratory, thoracic and mediastinal disorders
Dyspnoea
1.9%
1/53 • 168 weeks
0.00%
0/52 • 168 weeks
Neoplasms benign, malignant and unspecified (incl cysts and polyps)
Fibroadenoma of Breast
0.00%
0/53 • 168 weeks
1.9%
1/52 • 168 weeks
Infections and infestations
Gastroenteritis
1.9%
1/53 • 168 weeks
0.00%
0/52 • 168 weeks
Nervous system disorders
Hemiparesis
0.00%
0/53 • 168 weeks
1.9%
1/52 • 168 weeks
Neoplasms benign, malignant and unspecified (incl cysts and polyps)
Lymphoma
0.00%
0/53 • 168 weeks
1.9%
1/52 • 168 weeks
General disorders
Oedema Peripheral
1.9%
1/53 • 168 weeks
0.00%
0/52 • 168 weeks
Nervous system disorders
Pain
0.00%
0/53 • 168 weeks
1.9%
1/52 • 168 weeks
Renal and urinary disorders
Renal failure
0.00%
0/53 • 168 weeks
1.9%
1/52 • 168 weeks
Respiratory, thoracic and mediastinal disorders
Respiratory failure
0.00%
0/53 • 168 weeks
1.9%
1/52 • 168 weeks
Infections and infestations
Sepsis
0.00%
0/53 • 168 weeks
1.9%
1/52 • 168 weeks
Neoplasms benign, malignant and unspecified (incl cysts and polyps)
Waldenstrom's Macroglobulinaemia
1.9%
1/53 • 168 weeks
0.00%
0/52 • 168 weeks
Musculoskeletal and connective tissue disorders
Intervertebral Disc Protrusion
0.00%
0/53 • 168 weeks
1.9%
1/52 • 168 weeks

Other adverse events

Other adverse events
Measure
Tenofovir DF
tenofovir DF 300 mg QD
Emtricitibine/Tenofovir DF
emtricitabine 200 mg / tenofovir DF 300 mg QD (combination tablet)
Gastrointestinal disorders
Abdominal Pain
9.4%
5/53 • 168 weeks
9.6%
5/52 • 168 weeks
Gastrointestinal disorders
Abdominal Pain Upper
15.1%
8/53 • 168 weeks
17.3%
9/52 • 168 weeks
Skin and subcutaneous tissue disorders
Alopecia
5.7%
3/53 • 168 weeks
1.9%
1/52 • 168 weeks
Blood and lymphatic system disorders
Anaemia
5.7%
3/53 • 168 weeks
1.9%
1/52 • 168 weeks
Musculoskeletal and connective tissue disorders
Arthralgia
3.8%
2/53 • 168 weeks
9.6%
5/52 • 168 weeks
General disorders
Asthenia
13.2%
7/53 • 168 weeks
3.8%
2/52 • 168 weeks
Musculoskeletal and connective tissue disorders
Back Pain
17.0%
9/53 • 168 weeks
11.5%
6/52 • 168 weeks
Investigations
Blood Creatine Phosphokinase Increased
0.00%
0/53 • 168 weeks
7.7%
4/52 • 168 weeks
Infections and infestations
Bronchitis
5.7%
3/53 • 168 weeks
13.5%
7/52 • 168 weeks
Gastrointestinal disorders
Constipation
3.8%
2/53 • 168 weeks
5.8%
3/52 • 168 weeks
Respiratory, thoracic and mediastinal disorders
Cough
5.7%
3/53 • 168 weeks
1.9%
1/52 • 168 weeks
Metabolism and nutrition disorders
Decreased appetite
5.7%
3/53 • 168 weeks
1.9%
1/52 • 168 weeks
Psychiatric disorders
Depression
1.9%
1/53 • 168 weeks
5.8%
3/52 • 168 weeks
Gastrointestinal disorders
Diarrhoea
9.4%
5/53 • 168 weeks
5.8%
3/52 • 168 weeks
Nervous system disorders
Dizziness
7.5%
4/53 • 168 weeks
7.7%
4/52 • 168 weeks
Gastrointestinal disorders
Dyspepsia
7.5%
4/53 • 168 weeks
3.8%
2/52 • 168 weeks
General disorders
Fatigue
17.0%
9/53 • 168 weeks
17.3%
9/52 • 168 weeks
Gastrointestinal disorders
Haemorrhoids
5.7%
3/53 • 168 weeks
1.9%
1/52 • 168 weeks
Nervous system disorders
Headache
28.3%
15/53 • 168 weeks
19.2%
10/52 • 168 weeks
Infections and infestations
Influenza
5.7%
3/53 • 168 weeks
1.9%
1/52 • 168 weeks
Psychiatric disorders
Insomnia
1.9%
1/53 • 168 weeks
5.8%
3/52 • 168 weeks
Musculoskeletal and connective tissue disorders
Myalgia
5.7%
3/53 • 168 weeks
1.9%
1/52 • 168 weeks
Infections and infestations
Nasopharyngitis
30.2%
16/53 • 168 weeks
23.1%
12/52 • 168 weeks
Gastrointestinal disorders
Nausea
9.4%
5/53 • 168 weeks
3.8%
2/52 • 168 weeks
Musculoskeletal and connective tissue disorders
Pain in Extremity
3.8%
2/53 • 168 weeks
7.7%
4/52 • 168 weeks
Nervous system disorders
Paraesthesia
0.00%
0/53 • 168 weeks
5.8%
3/52 • 168 weeks
Respiratory, thoracic and mediastinal disorders
Pharyngolaryngeal Pain
15.1%
8/53 • 168 weeks
5.8%
3/52 • 168 weeks
Skin and subcutaneous tissue disorders
Pruritis
5.7%
3/53 • 168 weeks
3.8%
2/52 • 168 weeks
Immune system disorders
Seasonal allergy
3.8%
2/53 • 168 weeks
5.8%
3/52 • 168 weeks
Infections and infestations
Upper respiratory tract infection
1.9%
1/53 • 168 weeks
5.8%
3/52 • 168 weeks
Infections and infestations
Urinary Tract Infection
9.4%
5/53 • 168 weeks
7.7%
4/52 • 168 weeks
Investigations
Alanine Aminotransferase Increased
0.00%
0/53 • 168 weeks
5.8%
3/52 • 168 weeks
Gastrointestinal disorders
Gastroenteritis
5.7%
3/53 • 168 weeks
1.9%
1/52 • 168 weeks

Additional Information

Stephen J. Rossi, PharmD

Gilead Sciences, Inc.

Phone: 650-522-4212

Results disclosure agreements

  • Principal investigator is a sponsor employee
  • Publication restrictions are in place