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Chronic Hepatitis BPhase 2NCT00507689

Truvada Versus Truvada Plus Hepatitis B Immunoglobulin (HBIg) in Prevention of Chronic Hepatitis B Recurrence Post Liver Transplant

A Phase 2 study testing FTC/TDF and Hepatitis B Immunoglobulin (HBIg) in people with Chronic Hepatitis B, run by Gilead Sciences at 7 sites in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The objective of this 96-week study was to evaluate the safety and antiviral efficacy of emtricitabine/tenofovir disoproxil fumarate (FTC/TDF, coformulated; Truvada®) with or without hepatitis B immunoglobulin (HBIg) in preventing the recurrence of chronic hepatitis B following liver transplantation, in participants… Read more about this study

Who is it for?
Ages 18 to 75 years
Conditions the study is for
Chronic Hepatitis B
What is being tested?
FTC/TDF and Hepatitis B Immunoglobulin (HBIg)
Could I receive a placebo?
No, everyone receives an active treatment
How many people
40 participants
Where
7 sitesUnited States
Study dates
Sep 2007to May 2011
Phase
Phase 2
Are there results?
Yes, posted in the registrySummary in the doctors' view

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 75 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Adult subjects (18-75 years of age) with either hepatitis e antigen (HBeAg) positive or HBeAg negative chronic HBV prior to transplant
  • Willing and able to provide written informed consent
  • Subjects with detectable antibody to hepatitis B surface antigen performed by a local laboratory result within 30 days of screening
  • Subjects must have been stable and may not have had 2 or more of the following laboratory parameters associated with decompensated liver disease: conjugated bilirubin > 1.5 x the upper limit of the normal range (ULN), prothrombin time > 1.5 x ULN, platelets < 60,000/mm^3, serum albumin < 3.0 g/dL
  • Must have had at least 12 weeks of center-specific prophylactic therapy including hepatitis B immunoglobulin (HBIg) posttransplant
  • Calculated creatinine clearance ≥ 40 mL/min using the Cockcroft-Gault equation
  • No significant evidence of ongoing deterioration of renal function
  • Negative serum beta-human chorionic gonadotropin (for females of childbearing potential only)

Who cannot join

  • Subjects with HBV recurrence, ie, confirmed HBV DNA ≥ 400 copies/mL, following liver transplant
  • Pregnant women, women who were breast feeding or who believed they may have wished to become pregnant during the course of the study
  • Males and females of reproductive potential who were unwilling to use an effective method of contraception during the study and for at least 30 days from the date of last dose of study drug
  • Evidence of hepatocellular carcinoma (HCC), eg, alpha-fetoprotein > 50 ng/mL, or by any other standard of care measure or presence of multifocal HCC at the time of transplantation if transplantation was within 144 weeks of screening
  • Prior TDF or FTC/TDF experience post-transplant or > 12 months treatment with TDF or FTC/TDF treatment pretransplant
  • Coinfection with hepatitis C virus (by serology), HIV, or hepatitis D virus pretransplant or at screening
Show all 10Show fewer
  • Significant renal, cardiovascular, pulmonary, or neurological disease
  • Known hypersensitivity to the study drugs, the metabolites, or formulation excipients
  • Were likely to receive systemic drugs with nephrotoxic potential, except immunosuppressive agents (eg, cyclosporine, tacrolimus), during the course of the study
  • History of variceal bleeding or hepatic encephalopathy following orthotopic liver transplantation

Trial locations and contacts

7 sites in 1 country.

7 sites in 1 country

United States7 sites
  • Study site

    Atlanta, Georgia, 30322

  • Study site

    Chicago, Illinois, 60608

  • Study site

    Los Angeles, California, 90048

  • Study site

    New York, New York, 10016

  • Study site

    New York, New York, 10029

  • Study site

    San Francisco, California, 94115

  • Study site

    San Francisco, California, 94143

Other trials in United States

About this study

Official title: A Phase 2, Open-Label Randomized Study to Evaluate the Efficacy and Safety of the Combination Product, Emtricitabine/Tenofovir Disoproxil Fumarate in the Presence or Absence of Hepatitis B Immunoglobulin (HBIg) in Preventing Recurrence of Chronic Hepatitis B (CHB) Post-Orthotopic Liver Transplant (OLT)

The objective of this 96-week study was to evaluate the safety and antiviral efficacy of emtricitabine/tenofovir disoproxil fumarate (FTC/TDF, coformulated; Truvada®) with or without hepatitis B immunoglobulin (HBIg) in preventing the recurrence of chronic hepatitis B following liver transplantation, in participants who were chronically infected with hepatitis B prior to transplantation.

Prior to enrollment, participants were required to have received at least 12 weeks of HBIg therapy following liver transplantation. Enrolled participants then received FTC/TDF plus HBIg for an initial 24-week pre-randomization treatment period. Participants who completed the pre-randomization period and who achieved sustained viral suppression were randomized to continue treatment with FTC/TDF with or without HBIg for an additional 72 weeks (randomized period). The antiviral efficacy of treatment was assessed by measuring hepatitis B virus levels in the blood (HBV DNA). Safety and tolerability was monitored by assessing adverse events and various laboratory parameters.

Being tested
FTC/TDF, Hepatitis B Immunoglobulin (HBIg)
Keywords
Truvada, HBIg, Chronic Hepatitis B Recurrence, Post Orthotopic Liver Transplant
Medical subject headings
Hepatitis B, Chronic

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • FTC/TDFDrug

    Also called Truvada

    Emtricitabine (FTC) 200 mg/tenofovir disoproxil fumarate (TDF) 300 mg was administered as a fixed-dose combination tablet orally once daily.

  • Hepatitis B Immunoglobulin (HBIg)Drug

    HBIg was administered either intravenously or by intramuscular injection at a dose and frequency as prescribed by the investigative site protocol.

Study groups in NCT00507689
Study groupRoleWhat they receive
FTC/TDF+HBIgExperimentalParticipants received FTC/TDF+HBIg for up to 24 weeks in the pre-randomization period; those who completed 24 weeks of treatment were then randomized to receive FTC/TDF+HBIg in the randomized period.
Receives: Drug: FTC/TDF; Drug: Hepatitis B Immunoglobulin (HBIg)
FTC/TDFExperimentalParticipants received FTC/TDF+HBIg for up to 24 weeks in the pre-randomization period; those who completed 24 weeks of treatment were then randomized to receive FTC/TDF in the randomized period.
Receives: Drug: FTC/TDF

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Percentage of Participants With HBV Recurrence Prior to or at Week 72

    HBV recurrence was defined as either HBV DNA ≥ 400 at 2 consecutive visits before Week 72, or HBV DNA ≥ 400 at the Week 72 visit.

    Measured: Pretreatment baseline through Week 72

Secondary outcomes (5)
  1. Percentage of Participants With HBV Recurrence at Week 96

    HBV recurrence was defined as HBV DNA ≥ 400 at the Week 96 visit.

    Measured: Week 96

  2. Percentage of Subjects With HBV DNA < 169 Copies/mL at Week 72

    Measured: Week 72

  3. Percentage of Participants With HBV DNA < 169 Copies/mL at Week 96

    Measured: Week 96

  4. Percentage of Participants With Normal ALT at Week 72

    Range of normal ALT was 6 to 34 U/L for females 18-69 years of age, and 6 to 32 U/L for females over age 69. Range of normal ALT was 6 to 43 U/L for males 18-69 years of age, and 6 to 35 U/L for males over age 69.

    Measured: Week 72

  5. Percentage of Participants With Normal ALT at Week 96

    Range of normal ALT was 6 to 34 U/L for females 18-69 years of age, and 6 to 32 U/L for females over age 69. Range of normal ALT was 6 to 43 U/L for males 18-69 years of age, and 6 to 35 U/L for males over age 69.

    Measured: Week 96

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted26 Jul 2007 (estimated)
  2. Study startSep 2007
  3. Primary completionMay 2011
  4. Study completionMay 2011

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 2
Primary purpose
Prevention
Allocation
Randomised
Intervention model
Parallel groups
Masking
Quadruple blind
Who is masked
Participant, Care provider, Investigator, Outcomes assessor
Enrolment
40 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00507689
Sponsor's protocol ID
GS-US-203-0107
Status last verified
Feb 2014
First submitted
25 Jul 2007
Last updated
14 Mar 2014
Data monitoring committee
No

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing FTC/TDF and Hepatitis B Immunoglobulin (HBIg) in people with Chronic Hepatitis B, run by Gilead Sciences at 7 sites in United States.

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 8 inclusion and 10 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 14 Mar 2014. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 7 sites in United States. 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.

What does this phase mean?

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Yes. Results are posted in the registry (first posted 19 Sep 2013). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

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?

Percentage of Participants With HBV Recurrence Prior to or at Week 72 (time frame: Pretreatment baseline through Week 72). 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 14 Mar 2014.

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