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ACH-126,443

Phase 2

Hepatitis B, Chronic | Small molecule | Infectious Disease |AstraZeneca PLC|Trials Updated: Aug 30, 2023

ACH-126,443 development status

Highest phase Phase 2
Registered trials 4 across 1 sponsor since Apr 2006

ACH-126,443 target and mechanism

ModalitySmall molecule

Also known as beta-L-Fd4C, Elvucitabine

Success Probability

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Market & Valuation

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Trial Design

RandomizedDouble-BlindUNCONTROLLED
Total Trials5
Total Enrollment186

FDA Designations

No designations recorded

ACH-126,443 clinical trials

ACH-126,443 · 5 trials · 3 indications

Phase 2 4Phase 1 1
NCT00675844An Open-Label Treatment Protocol to Provide Continued Elvucitabine TreatmentHIV Infections
COMPLETED7 Analytics
NCT00380159Open-Label, 48-Week Extension Study of Elvucitabine in Combination With Background Antiretroviral Therapy (ART) for Participants Who Have Completed Study ACH443-014AHuman Immunodeficiency Virus (HIV)-1 Infection
COMPLETED4 Analytics
NCT00350272Elvucitabine/Efavirenz/Tenofovir Versus Lamivudine/Efavirenz/Tenofovir in Human Immunodeficiency Virus (HIV)-1 Infected, Treatment-naive ParticipantsHIV Infections
COMPLETED76 Analytics
NCT00034359Safety and Antiviral Activity Study of ACH-126,443 (Beta-L-Fd4C) in Treatment-naive Adults With Chronic Hepatitis B Virus InfectionHepatitis B, Chronic
COMPLETED79 Analytics
PHASE2COMPLETED
An Open-Label Treatment Protocol to Provide Continued Elvucitabine Treatment
HIV InfectionsUnlock trial analytics
PHASE2COMPLETED
Open-Label, 48-Week Extension Study of Elvucitabine in Combination With Background Antiretroviral Therapy (ART) for Participants Who Have Completed Study ACH443-014A
Human Immunodeficiency Virus (HIV)-1 InfectionUnlock trial analytics
PHASE2COMPLETED
Elvucitabine/Efavirenz/Tenofovir Versus Lamivudine/Efavirenz/Tenofovir in Human Immunodeficiency Virus (HIV)-1 Infected, Treatment-naive Participants
HIV InfectionsUnlock trial analytics
PHASE2COMPLETED
Safety and Antiviral Activity Study of ACH-126,443 (Beta-L-Fd4C) in Treatment-naive Adults With Chronic Hepatitis B Virus Infection
Hepatitis B, ChronicUnlock trial analytics

Study Endpoints

Primary Endpoints

Determine Safety Profile Of Elvucitabine Measured By Incidence Of Study Discontinuations And Incidence, Severity, And Type Of Adverse Events And Clinically Significant Changes Or Abnormalities In Participant's Clinical Laboratory Results.
48 months
To Assess The Safety Of 48 Weeks Of 10 mg/daily (QD) Of Elvucitabine In Combination With ART
September 2008
The Proportion Of Participants With Virologic Response For 10 mg/Day Elvucitabine In HIV-1-Infected Participants By 12 Weeks Compared With The Proportion Of Participants With Lamivudine 300 mg/Day
12 weeks

The proportion of participants having achieved a virologic response for elvucitabine 10 mg/day in combination with efavirenz and tenofovir in HIV-1-infected participants over 12 weeks compared with the proportion of participants having achieved a virologic response for lamivudine 300 mg/day in combination with efavirenz and tenofovir. Virologic response was defined as having achieved undetectable (\<50 copies/mL) HIV-1 RNA levels from baseline assessment.

The Safety Profile Of Elvucitabine.
12 weeks

Determination of the safety profile of elvucitabine as defined by the frequency, type and severity of treatment-emergent adverse events (AEs) and the frequency of Grade 3 and Grade 4 laboratory abnormalities.

Reduction In Viral Load
14 days

Secondary Endpoints

Determination Of The Continued Efficacy Of Elvucitabine As Measured By The Change In Helper T Cell (CD4) Count.
48 months
To Describe The Anti-viral Activity Of Elvucitabine In Combination With ART As Measured By Plasma HIV-1 Ribonucleic Acid (RNA) Over 24 Weeks
September 2008
Number of Participants with a Treatment Adverse Event
14 days
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Study Design & Arms

AllocationNON_RANDOMIZED
MaskingNONE
ModelSINGLE_GROUP
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
ElvucitabineEXPERIMENTALParticipants currently receiving elvucitabine will continue elvucitabine as part of their antiretroviral therapy (ART) regimen for an additional 48 months.
Elvucitabine, Efavirenz, TenofovirEXPERIMENTALElvucitabine (blinded) 10 milligrams (mg)/day in combination with open-label efavirenz 600 mg daily and open-label tenofovir 300 mg daily, all administered orally, over 12 weeks. Eligible participants continued with an additional 84 weeks of open-label treatment (through Week 96). Participants who experienced at least a 2 log10 decrease in HIV-1 RNA from Baseline or who had an HIV-1 RNA level of less than 400 copies/ mL at Week 10 and had not experienced any Grade 3 or 4 hematological toxicity as of the Week 10 measurement were considered eligible for an additional 84 weeks of open-label treatment after Week 12.
Lamivudine, Efavirenz, TenofovirACTIVE_COMPARATORLamivudine (blinded) 300 mg daily in combination with open-label efavirenz 600 mg daily and open-label tenofovir 300 mg daily, all administered orally, over 12 weeks. Eligible participants continued with an additional 84 weeks of open-label treatment (through Week 96). Participants who experienced at least a 2 log10 decrease in HIV-1 RNA from Baseline or who had an HIV-1 RNA level of less than 400 copies/mL at Week 10 and had not experienced any Grade 3 or 4 hematological toxicity as of the Week 10 measurement were considered eligible for an additional 84 weeks of open-label treatment after Week 12.
AEXPERIMENTAL -
BACTIVE_COMPARATOR -

Interventions

NameTypeDescription
ElvucitabineDRUG10 milligrams (mg) elvucitabine daily as part of an ART regimen
LamivudineDRUG -
EmtricitabineDRUG -
TenofovirDRUGTenofovir open-label 300 mg orally daily
EfavirenzDRUGEfavirenze open-label 600 mg orally daily
ACH-126,443DRUG -
PlaceboDRUG -
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Eligibility Criteria

Age Range18 Years to 65 Years
SexALL
Healthy VolunteersNo
Study Sites5

Inclusion Criteria: • Participants must have successfully completed 96 weeks of elvucitabine therapy in Protocol ACH443-015 or participants have completed 48 weeks of elvucitabine therapy in Protocol ACH443-014A-018 . Exclusion Criteria: * Participant has experienced virologic rebound as defined ...

Countries:United StatesDominican RepublicGermanySpainPuerto RicoBulgariaFederal Republic of Yugoslavia
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Frequently asked questions about ACH-126,443

What is ACH-126,443 used for?

ACH-126,443 is an investigational small molecule being studied for the treatment of chronic hepatitis B. It was evaluated in a Phase 2 clinical trial in treatment-naive adults with chronic hepatitis B virus infection. The drug is not approved and remains in clinical development.

Who makes ACH-126,443?

ACH-126,443 is being developed by AstraZeneca PLC, a biopharmaceutical company traded on the stock exchange under the ticker AZN. The company conducted a Phase 2 clinical trial of the drug in patients with chronic hepatitis B.

What phase is ACH-126,443 in?

ACH-126,443 is in Phase 2 clinical development. A Phase 2 study of the drug has been completed, but it is not approved and is still investigational. The completed trial enrolled 79 participants with chronic hepatitis B.

What clinical trials is ACH-126,443 in?

ACH-126,443 has one completed clinical trial, registered as NCT00034359. This Phase 2 study assessed the safety and antiviral activity of ACH-126,443 in treatment-naive adults with chronic hepatitis B virus infection. The trial enrolled 79 participants and was conducted in Bulgaria and the Federal Republic of Yugoslavia.

Is ACH-126,443 the same as beta-L-Fd4C?

ACH-126,443 is also known as beta-L-Fd4C. The clinical trial NCT00034359 evaluated ACH-126,443 (beta-L-Fd4C) in patients with chronic hepatitis B. Both names refer to the same investigational drug.