CClinicalTrials.gg
WithdrawnNCT00986778Updated Sep 1, 2015

Entecavir Plus Adefovir in Lamivudine-Resistant Patients

A Phase 4 interventional study of Lamivudine and Entecavir in Hepatitis B, Chronic, sponsored by Bristol-Myers Squibb. Withdrawn. Open to participants aged 16 Years and older. Per ClinicalTrials.gov, last updated 2015-09-01.

Sponsored by Bristol-Myers Squibb · Phase 4, Interventional, and Treatment

Why this study was withdrawn
Business Objectives Changed
Phase
Phase 4
Study type
Interventional
Enrollment
0
Allocation
Randomized
Ages
16 Years and older
Sex
All
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Study summary

Combination therapy with entecavir 1.0 mg plus adefovir 10 mg has superior antiviral activity compared with either entecavir monotherapy 1.0 mg or adefovir 10 mg plus lamivudine 100 mg in Chinese adults with lamivudine-resistant chronic hepatitis B infection

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Conditions studied

03

In context

Hepatitis B

1,656 studies on the registry are indexed under Hepatitis B; 196 are open to participants now.

Browse Hepatitis B studies →

Lead sponsor

Bristol-Myers Squibb is the lead sponsor of 1,538 studies on the registry; 116 are open to participants now.

Of its 429 completed or terminated interventional studies of FDA-regulated products, 223 (52%) have results posted.

Counted across the registry records on this site, refreshed daily.

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Who can participate

Ages eligible
16 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  • CHB HBeAg(+) Subject with Lamivudine treatment history must have LVDr substitution at rtM204V/I
  • Naïve to nucleoside/nucleotide analogues except for LVD
  • HBV DNA > 17,200 IU/mL
  • Compensated liver function
  • Serum ALT \<10 × ULN

Exclusion criteria

Exclusion Criteria:

  • Women who are pregnant or breastfeeding
  • Evidence of decompensated cirrhosis
  • Coinfection with HIV, hepatitis C virus (HCV), or hepatitis D virus (HDV)
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Study design

Phase
Phase 4
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
0 participants (actual)

Study arms

  • Active comparator
    Lamivudine plus Adefovir

    Drug: Lamivudine · Drug: Adefovir

  • Active comparator
    Entecavir

    Drug: Entecavir

  • Experimental
    Entecavir plus Adefovir

    Drug: Entecavir · Drug: Adefovir

Interventions

  • DrugLamivudine

    Tablets, Oral, 100mg, once daily, 48-96 weeks depending on response

    Also known as: Heptotin

  • DrugEntecavir

    Tablets, Oral, 1mg, once daily, 48-96 weeks depending on response

    Also known as: Baraclude

  • DrugAdefovir

    Tablets, Oral, 10mg, once daily, 48-96 weeks depending on response

    Also known as: Hepsera

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What researchers measure

Primary outcomes

  1. The proportion of patients with HBV DNA < 50 IU/mL at W48

    Time frame: Week 48

Secondary outcomes

  1. The proportion of patient with HBV DNA < 50 IU/mL at W 96

    Time frame: Week 96

  2. Mean reduction of HBV DNA at W 48 & 96

    Time frame: Week 48 and 96

  3. The proportion of subjects with ALT normalization at W 48 & 96

    Time frame: Week 48 & Week 96

  4. The proportion of subjects achieved HBeAg loss, seroconversion, HBsAg loss and seroconversion at W48 & 96

    Time frame: Week 48 & 96

  5. Safety

    Time frame: Week 48 and Week 96

  6. Resistance

    Time frame: Week 48 & Week 96

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Study locations

No study locations are listed for this record.

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References and documents

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Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Sep 1, 2015, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT00986778
Lead sponsor
Bristol-Myers Squibb
First posted
Sep 30, 2009
Start date
Dec 2009
Primary completion
Dec 2012 (estimated)
Completion
Jun 2014 (estimated)
Last update
Sep 1, 2015

Study contacts

Bristol-Myers Squibb
study director · Bristol-Myers Squibb

Oversight

Data monitoring committee
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is withdrawn, as verified in Dec 2009. You cannot join it, but the record below documents what was studied.

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