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AT-527+ rosuvastatin

Phase 2

COVID-19 | Small molecule | Infectious Disease |Atea Pharmaceuticals, Inc.|Trials Updated: Oct 26, 2022

AT-527+ rosuvastatin target and mechanism

ModalitySmall molecule

Also known as AT-527 (R07496998), AT-527, AT-527 fed, AT-527 Formulation 1, AT-527 Formulation 2

Success Probability

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Market & Valuation

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Trial Design

RandomizedDouble-BlindPLACEBO_CONTROLLED
Total Trials3
Total Enrollment202

FDA Designations

No designations recorded

AT-527+ rosuvastatin clinical trials

AT-527+ rosuvastatin · 3 trials · 6 indications

Phase 2 2Phase 1 1
NCT04709835Study to Evaluate the Effects of AT-527 in Non-Hospitalized Adult Patients With Mild or Moderate COVID-19COVID-19
COMPLETED104 Analytics
NCT04019717Study of AT-527 in Combination With Daclatasvir in Subjects With Hepatitis C Virus (HCV) InfectionHepatitis C
COMPLETED10 Analytics
PHASE2COMPLETED
Study to Evaluate the Effects of AT-527 in Non-Hospitalized Adult Patients With Mild or Moderate COVID-19
COVID-19Unlock trial analytics
PHASE2COMPLETED
Study of AT-527 in Combination With Daclatasvir in Subjects With Hepatitis C Virus (HCV) Infection
Hepatitis CUnlock trial analytics

Study Endpoints

Primary Endpoints

Change From Baseline in the Amount of Severe Acute Respiratory Syndrome Coronavirus-2 (SARS-CoV-2) Virus RNA for AT-527 550 mg and Matched Placebo
Baseline, Day 3, Day 5, Day 7

SARS-CoV-2 virus RNA was measured by reverse-transcription polymerase chain reaction (RT-PCR) from nasopharyngeal (NP) swabs. The change from baseline was estimated from an ANCOVA model with baseline viral load as a covariate. Reported here is the adjusted mean change from baseline. A negative change from baseline indicates an improvement.

Change From Baseline in the Amount of Severe Acute Respiratory Syndrome Coronavirus-2 (SARS-CoV-2) Virus RNA for AT-527 1100 mg and Pooled Placebo
Baseline, Day 3, Day 5, Day 7

SARS-CoV-2 virus RNA was measured by reverse-transcription polymerase chain reaction (RT-PCR) from NP swabs. The change from baseline was estimated from an ANCOVA model with baseline viral load as a covariate. Reported here is the adjusted mean change from baseline. A negative change from baseline indicates an improvement.

Proportion of subjects achieving sustained virologic response (SVR)
12 weeks after end of treatment

SVR defined as the HCV RNA \< lower limit of quantitation (LLOQ) at 12 weeks after end of treatment

Incidence of treatment-emergent adverse events
Through 4 weeks after end of treatment
Incidence of Treatment-Emergent Adverse Events [Safety and Tolerability]
Through Day 6 for subjects receiving a single dose

Number of subjects experiencing treatment-emergent adverse events

Secondary Endpoints

Time to Cessation of SARS-CoV-2 Viral Shedding
Up to Day 7
Time to Sustained Non-Detectable SARS-CoV-2 Virus RNA
Up to Day 7
Percentage of Participants Positive for SARS-CoV-2 Virus RNA at Specified Timepoints
Baseline, Day 3, Day 5, Day 7
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Study Design & Arms

AllocationRANDOMIZED
MaskingDOUBLE
ModelPARALLEL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
PlaceboPLACEBO_COMPARATORParticipants will receive AT-527-matched placebo twice a day (BID) on Days 1-5.
AT-527 550 mg (1x550 mg)EXPERIMENTALParticipants will receive 550 mg AT-527 (1x550 mg) twice a day (BID) on Days 1-5.
AT-527 1100 mg (4x275 mg)EXPERIMENTALParticipants will receive 1100 mg AT-527 (4x275 mg) twice a day (BID) on Days 1-5.
8 weeksEXPERIMENTAL -
12 weeksEXPERIMENTAL -
AT-527EXPERIMENTAL -

Interventions

NameTypeDescription
AT-527DRUGResults from Arm AT-527 500 mg determined the dose and regimen to be used for AT-527 1100 mg.
PlaceboDRUGThe dose and regimen of the placebo will match that of the respective AT-527 comparator arm.
DaclatasvirDRUGInhibitor of HCV nonstructural protein 5A (NS5A)
Placebo ComparatorOTHERMatching placebo
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Eligibility Criteria

Age Range18 Years to N/A
SexALL
Healthy VolunteersNo
Study Sites12

Inclusion Criteria: * Positive SARS-CoV-2 diagnostic test (RT-PCR or rapid antigen test)at screening * Has symptoms consistent with mild or moderate COVID-19, as determined by the investigator, with onset ≤5 days prior to randomization Exclusion Criteria: * Clinical signs indicative of COVID-19 i...

Countries:CanadaGreeceIrelandLatviaSpainUnited KingdomBelgiumMauritiusMoldova
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Frequently asked questions about AT-527+ rosuvastatin

What is AT-527 + rosuvastatin?

AT-527 + rosuvastatin refers to the investigational small molecule AT-527 studied alongside rosuvastatin in drug interaction research. AT-527 is being developed by Atea Pharmaceuticals, Inc. (AVIR) for infectious disease indications including COVID-19 and chronic hepatitis C. The combination appears among the treatment arms used to evaluate how AT-527 affects other medications.

What is AT-527 used for in COVID-19 and hepatitis C?

AT-527 is being studied for the treatment of COVID-19 and chronic hepatitis C virus infection. Atea Pharmaceuticals has evaluated it in non-hospitalized adults with mild or moderate COVID-19 and in patients with hepatitis C, including a study combining AT-527 with daclatasvir. These programs remain investigational and are in clinical development.

Who makes AT-527?

AT-527 is developed by Atea Pharmaceuticals, Inc., which trades under the ticker AVIR. The company is the sponsor of the clinical studies evaluating AT-527 in COVID-19 and hepatitis C, including the drug interaction studies that pair AT-527 with agents such as rosuvastatin, midazolam, digoxin, carbamazepine, and cyclosporine.

What phase is AT-527 in?

AT-527 has been studied in Phase 2 clinical trials, with earlier Phase 1 work also completed. The Phase 2 program includes a completed study in non-hospitalized adults with mild or moderate COVID-19 and a completed Phase 2 study of AT-527 combined with daclatasvir in patients with hepatitis C virus infection. AT-527 is investigational and has not been approved.

What clinical trials is AT-527 in?

AT-527 has been evaluated in completed trials including NCT04709835, a Phase 2 study of AT-527 in non-hospitalized adults with mild or moderate COVID-19, and NCT04019717, a Phase 2 study of AT-527 with daclatasvir in hepatitis C patients. An earlier Phase 1 study, NCT03219957, enrolled healthy and HCV-infected subjects.