CI

At a glance

ClinicalIndex Comparison Record
Phase 1Recruiting· 600 target
Drug / intervention
CST-2: EIDD-2801 +13 moredrug
Likely dose
Nitazoxanide 1500mgfrom record
Key inclusion· 16
  • Adults aged ≥18 years with laboratory-confirmed SARS-CoV-2 infection (PCR)
  • Ability to provide informed consent signed by study patient or legally acceptable representative
  • Contraception requirements for WOCBP and sexually active males
  • CST-2: Age ≥60 years or ≥50 years with at least one well-controlled comorbidity
Key exclusion· 28
  • ALT and/or AST >5 times upper limit of normal (ULN)
  • Stage 4 severe chronic kidney disease or requiring dialysis (eGFR <30 mL/min/1.73 m²)
  • Pregnant or breast feeding
  • Anticipated transfer to another hospital not a study site within 72 hours

Standardized by ClinicalIndex from the ClinicalTrials.gov record · verify against the source.

Search/NCT04746183
NCT04746183Phase 1RecruitingOn Track
Long Recruiting

AGILE: Seamless Phase I/IIa Platform for the Rapid Evaluation of Candidates for COVID-19 Treatment

University of Liverpool·interventional·Posted Feb 9, 2021·Updated Jun 1, 2026

In Brief

A Phase 1 clinical trial evaluating CST-2: EIDD-2801, CST-2: Placebo, and 11 other interventions for Covid19. Currently recruiting, targeting 600 participants across 7 sites in 2 countries.

Detailed Summary

The AGILE platform master protocol allows incorporation of a range of identified and yet-to-be-identified candidates as potential treatments for adults with COVID-19 into the trial. Candidates will be added into the trial via candidate-specific trial (CST) protocols of this master protocol as appendices. Having one master protocol ensures different candidates are evaluated in the same consistent manor and opening up new trials for new candidates is more efficient. Inclusion of new candidates will be based on pre-clinical data, evidence in the clinical setting and GMP capabilities.

Study Details

Study Typeinterventional
Allocation--
Masking--
Primary Purpose--
ConditionsCovid19
CountriesSouth Africa, United Kingdom

Timeline

Phase 1Recruiting
2021202220232024202520262027
First PostedFeb 9, 2021
Enrollment StartJul 3, 2020
Primary CompletionMar 31, 2027
TodayJul 2, 2026
Enrollment to primary: 6.7 yearsPosted 5.4 years agoPrimary completion in 9 months

Arms & Interventions

CST-2 EIDD-2801 Phase Ibexperimental

EIDD-2801 (also known as MK-4482, molnupiravir). Phase Ib: EIDD-2801 will be administered orally, twice daily (BID) for 10 doses (5 or 6 days). The starting dose will be established based on safety and pharmacokinetics from the EIDD-2801-1001-US/UK study, and dose escalations may occur as described in this CST.

Drug: CST-2: EIDD-2801
CST-2 Controlno_intervention

Phase 1b only (standard of care)

CST-2 Placeboplacebo_comparator

Phase II placebo blinded controlled

Drug: CST-2: Placebo
CST-3A Nitazoxanideexperimental

Phase Ia Nitazoxanide will be administered orally, initially twice daily (BID) for 14 doses (7 days). The starting dose will be 1500mg BID based on existing dose information, but dose adaptations may occur

Drug: Nitazoxanide
CST-5 VIR-7832 Phase Iexperimental

Phase I: Single doses of VIR-7832 will be administered by intravenous (IV) infusion. The starting dose will be 50 mg, and dose escalations of 150 and 500 mg are anticipated.

Drug: VIR-7832
CST-5 VIR-7831 Phase IIactive_comparator

Phase II: 500 mg dose of VIR-7831 will be given by IV infusion.

Drug: VIR-7831
CST-5 Placebo Phase Iplacebo_comparator

Phase I: placebo blinded controlled

Drug: CST-5: Placebo
CST3B Nitazoxanideexperimental

Phase II experimental arm.

Drug: Nitazoxanide
CST3B Controlno_intervention

Standard of care

CST6 IV Favipiravirexperimental

IV Favipiravir twice daily for 7 days. Starting dose 600 mg twice daily. Dose escalation to 1200 mg twice daily, 1800 twice daily, 2400 twice daily.

Drug: Favipiravir
CST6 Controlno_intervention

Standard of care

CST-2 EIDD-2801 Phase IIexperimental

EIDD-2801 (also known as MK-4482, molnupiravir). Phase II: As per Phase Ib, with the dose determined by the recommended phase II dose.

Drug: CST-2: EIDD-2801
CST-8 Phase I Molnupiravir + Paxlovid®experimental

Molnupiravir 800mg Twice a day (BD) in combination with Paxlovid® (300mg nirmatrelvir + ritonavir 100mg) twice a day (BD) for 5 days as starting dose, with a de-escalation protocol reducing in increments of molnupiravir to 600mg BD, then 400mg BD if required. The dose of Paxlovid® will be fixed for all cohorts.

Drug: MolnupiravirDrug: Paxlovid
CST-8 Phase I Molnupiravir + Paxlovid® Controlno_intervention

Standard of care

CST-5 VIR-7832active_comparator

Phase II: 500 mg dose of VIR-7832 will be given by IV infusion.

Drug: VIR-7832
CST-5 Placebo Phase IIplacebo_comparator

Phase II: placebo blinded controlled

Drug: CST-5: Placebo
CST-9a Monotherapyexperimental

Phase II: ALG-097558 600 mg twice a day orally for 5 days

Drug: ALG-097558
CST-9a Combinationexperimental

Phase II: ALG-097558 600 mg twice a day orally for 5 days in combination with IV remdesivir for 3 days (200 mg day 1, 100 mg day 2 and 3)

Drug: ALG-097558Drug: ALG-097558 and Remdesivir
CST-9a Controlactive_comparator

Phase II : standard of care

Drug: NHS standard of care as per COVID-19 treatment guidelines
CST-9b: ALG-097558experimental

twice daily dose for 5 days

Drug: ALG-097558
CST-9b: placebo for ALG097558placebo_comparator

Drug: Placebo

Interventions

CST-2: EIDD-2801drug

CST-2 Phase Ib: EIDD-2801 will be administered orally, twice daily (BID) for 10 doses (5 or 6 days). The starting dose will be established based on safety and pharmacokinetics from the EIDD-2801-1001-US/UK study, and dose escalations may occur as described in this CST. Phase II: As per Phase Ib, with the dose determined by the recommended phase II dose.

CST-2: Placebodrug

CST-2 Phase II: Placebo will be administered orally, twice daily (BID) for 10 doses (5 or 6 days).

Nitazoxanidedrug

CST3A \& CST3B Phase I: Nitazoxanide will be administered orally, initially twice daily (BID) for 14 doses (7 days). The starting dose will be 1500mg BID based on existing dose information, but dose adaptations may occur. Phase II: As per Phase Ib, with the dose determined by the recommended phase II dose.

VIR-7832drug

CST-5: Phase I, Single doses of VIR-7832 will be administered by intravenous (IV) infusion over 1 hour. The starting dose will be 50 mg, and dose escalations of 150 and 500 mg are anticipated, with escalation guided by emerging safety data and decision by the SRC. Phase II: As per Phase I, with the dose determined by the recommended phase II dose.

VIR-7831drug

CST-5 Phase II: A 500 mg dose of VIR-7831 will also be given by IV infusion over 1 hour.

CST-5: Placebodrug

CST-5 Phase 1, Phase II: Placebo given by intravenous infusion over 1 hour

Favipiravirdrug

CST-6: Multiple doses of IV Favipiravir will be administered by intravenous (IV) infusion over 1 hour. Dosing regimen will be every 12 hours for 7 days duration. The starting dose will be 600mg (BID), and dose escalations to 1200mg (BID), 1800mg (BID) and 2400mg (BID) are anticipated as well as a de-escalation dose of 300mg (BID) if necessary, with de-escalation and escalation guided by emerging safety data and decision by the Safety Review Committee (SRC).

Molnupiravirdrug

Molnupiravir 800mg Twice a day (BD) for 5 days as starting dose, with a de-escalation protocol reducing in increments of molnupiravir to 600mg BD, then 400mg BD if required.

Paxloviddrug

Paxlovid® (300mg nirmatrelvir + ritonavir 100mg) twice a day (BD) for 5 days. The dose of Paxlovid® will be fixed for all cohorts.

ALG-097558drug

ALG-097558 600 mg Twice a day (BD) for 5 days

ALG-097558 and Remdesivirdrug

ALG-097558 600 mg Twice a day (BD) for 5 days Remdesivir will be administered once daily by intravenous infusion over 30 to 120 minutes. 200 mg will be given on day 1 and 100 mg on day 2 and day 3.

NHS standard of care as per COVID-19 treatment guidelinesdrug

NHS standard of care as per COVID-19 treatment guidelines

ALG-097558drug

twice daily (Q12H) oral dose of ALG-097558

Placebodrug

twice daily (Q12H) oral dose