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ABI-H2158

Phase 1

Chronic Hepatitis B | Small molecule | Infectious Disease |Assembly Biosciences, Inc.|Last Updated: Jan 27, 2021

Success Probability
Approval Probability 71%
TA Base Rate26%
Adjusted LOA41%
ML RiskLOW_RISK
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Market & Valuation
rNPV $3.2B
Market Size $9.4B
Revenue Basis $1.6B
Competitors 6
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Trial Design
RandomizedDouble-BlindPLACEBO_CONTROLLEDBiomarker
Total Trials3
Total Enrollment175
FDA Designations
No designations recorded
Clinical Trials (3)
NCT IDTitlePhaseStatusEnrollmentVelocityDesignStartCompletionLast UpdatedSitesCountries
NCT04142762A Study to Assess CYP3A4 Modulator, Oral Contraceptive, and pH Modifier Drug Interactions for ABI-H2158 in Healthy AdultsPHASE1 COMPLETED 80Oct 18, 2019Jan 29, 2020Mar 4, 20201 United States
NCT04083716A Study to Assess the Relative Bioavailability and Food Effect of ABI-H2158 in Healthy AdultsPHASE1 COMPLETED 15Sep 6, 2019Oct 7, 2019Nov 29, 20191 United States
NCT03714152A Study of ABI-H2158 in Healthy Volunteers and Patients With Chronic Hepatitis BPHASE1 COMPLETED 80Nov 13, 2018Jan 7, 2021Jan 27, 202114 United States, Australia +5
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Study Endpoints
Primary Endpoints
Area under the plasma concentration time curve (AUC) of ABI-H2158
before dosing and at pre-specified time points up to Day 17
Maximum observed plasma concentration (Cmax) of ABI-H2158
before dosing and at pre-specified time points up to Day 17
AUC of Midazolam
before dosing and at pre-specified time points up to Day 12
Cmax of Midazolam
before dosing and at pre-specified time points up to Day 17
AUC of ethinyl estradiol and levonorgestrel
before dosing and at pre-specified time points up to 5 days after dosing on Day 21 of Cycle 1 and Cycle 2. Cycle 1 is 28 days and Cycle 2 is 26 days
Cmax of ethinyl estradiol and levonorgestrel
before dosing and at pre-specified time points up to 5 days after dosing on Day 21 of Cycle 1 and Cycle 2. Cycle 1 is 28 days and Cycle 2 is 26 days
Area under the plasma concentration time curve (AUC) of ABI-H2158: Relative Bioavailability and Food Effect
before dosing and 0.5, 1, 1.5, 2, 3, 4, 5, 6, 9, 12, 18, 24, 36, 48, 72, 96, and 120 hours after dosing on Days 1, 8, and 15
Maximum observed plasma concentration (Cmax) of ABI-H2158: Relative Bioavailability and Food Effect
before dosing and 0.5, 1, 1.5, 2, 3, 4, 5, 6, 9, 12, 18, 24, 36, 48, 72, 96, and 120 hours after dosing on Days 1, 8, and 15
Number of healthy volunteers and patients with chronic HBV infection with treatment-related adverse events as assessed by CTCAE v4.0.
Up to 28 days
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Study Design & Arms
AllocationNON_RANDOMIZED
MaskingNONE
ModelPARALLEL
PurposeTREATMENT
Treatment Arms
ArmTypeDescription
Cohort 1: ABI-H2158 + ItraconazoleEXPERIMENTALOral ABI-H2158 on Days 1 and 9; oral itraconazole once-daily (QD) on Days 6 through 13
Cohort 2: ABI-H2158 + RifampinEXPERIMENTALOral ABI-H2158 on Days 1 and 12; oral rifampin QD on Days 6 through 16
Cohort 3: ABI-H2158 + EsomeprazoleEXPERIMENTALOral ABI-H2158 on Days 1 and 11; oral esomeprazole QD on Days 6 through 11
Cohort 4: ABI-H2158 + MidazolamEXPERIMENTALOral midazolam on Days 1 and 11; oral ABI-H2158 QD on Days 2 through 11
Cohort 5: ABI-H2158 + Oral ContraceptiveEXPERIMENTALCycle 1: active oral contraceptive (ethinyl estradiol/levonorgestrel) QD on Days 1 through 21 and oral placebo QD on Days 22 through 28; Cycle 2: active oral contraceptive QD on Days 1 through 21, oral placebo QD on Days 22 through 26, and oral ABI-H2158 QD on Days 11 through 24
Group 1EXPERIMENTALABI-H2158 Reference Formulation in a fasting state on Day 1 (Period 1), then ABI-H2158 Test Formulation in a fasting state on Day 8 (Period 2), then ABI-H2158 Test Formulation after a high-fat meal on Day 15 (Period 3)
Group 2EXPERIMENTALABI-H2158 Test Formulation in a fasting state on Day 1 (Period 1), then ABI-H2158 Test Formulation after a high-fat meal on Day 8 (Period 2), then ABI-H2158 Reference Formulation in a fasting state on Day 15 (Period 3)
Group 3EXPERIMENTALABI-H2158 Test Formulation after a high-fat meal on Day 1 (Period 1), then ABI-H2158 Reference Formulation in a fasting state on Day 8 (Period 2), then ABI-H2158 Test Formulation in a fasting state on Day 15 (Period 3)
ABI-H2158EXPERIMENTALABI-H2158 in varying doses of tablets by mouth without and with food for 1 day or 10 days
Matching Placebo for ABI-H2158PLACEBO_COMPARATORMatching Placebo in varying doses of tablets by mouth without and with food for 1 day or 10 days
Interventions
NameTypeDescription
ABI-H2158DRUGABI-H2158 tablets
ItraconazoleDRUGItraconazole capsules
RifampinDRUGRifampin capsules
MidazolamDRUGMidazolam syrup
Ethinyl Estradiol / LevonorgestrelDRUGEthinyl Estradiol / Levonorgestrel tablets
EsomeprazoleDRUGEsomeprazole capsules
Placebo matching oral contraceptiveDRUGPlacebo matching Ethinyl Estradiol / Levonorgestrel tablets
ABI-H2158 Reference FormulationDRUGABI-H2158 tablets Reference Formulation
ABI-H2158 Test FormulationDRUGABI-H2158 tablets Test Formulation
Placebo for ABI-H2158DRUGSugar pill manufactured to mimic the ABI-H2158 5 mg or 25 mg tablets
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Eligibility Criteria
Age Range18 Years — 65 Years
SexALL
Healthy VolunteersYes
Study Sites1

Inclusion Criteria: 1. No clinically significant abnormal findings on physical exam, medical history, or clinical laboratory results at screening. 2. Cohort 5: naive to the use of oral contraceptives. Exclusion Criteria: 1\. Positive test results for human immunodeficiency virus (HIV) or hepatiti...

Countries:United StatesAustraliaChinaHong KongNew ZealandSouth KoreaUnited Kingdom
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