for people ages 18 years and up (full criteria)
at Los Angeles, California and other locations
study started
completion around



This study looks at the safety and effectiveness of AZD7442 in treating COVID-19 in people who have been hospitalized with the infection. Participants in the study will be treated with either a AZD7442 plus current standard of care (SOC), or with placebo plus current SOC. This is ACTIV-3/TICO Treatment Trial H4.

Official Title

A Multicenter, Adaptive, Randomized, Blinded Controlled Trial of the Safety and Efficacy of Investigational Therapeutics for Hospitalized Patients With COVID-19 (Trial H4: AZD7442)


This is a treatment trial of the ACTIV-3/TICO master protocol (NCT04501978) to evaluate the safety and efficacy of AZD7442 in hospitalized patients infected with COVID-19.

This is a randomized, blinded, controlled sub-study of AZD7442 plus current standard of care (SOC) against placebo plus current SOC. The placebo arm may be shared across other sub-studies of the ACTIV-3/TICO master protocol. When more than one drug is being tested at the same time, participants will be randomly allocated to treatments or placebo.

Randomization will be stratified by study site pharmacy and disease severity. There are 2 disease severity strata: Participants without organ failure (severity stratum 1) and participants with organ failure (severity stratum 2).

An independent Data and Safety Monitoring Board (DSMB) will regularly review interim analyses and summarize safety and efficacy outcomes. The pace of enrollment with be initially restricted, and there will be an early review of safety data by the DSMB. At the outset of the trial, only participants in disease severity stratum 1 will be enrolled. This will continue until approximately 300 participants are enrolled and followed for 5 days. The exact number will vary according to the speed of enrollment and the timing of DSMB meetings. Prior to expanding enrollment to also include patients in disease severity stratum 2, safety will be evaluated and a pre-specified futility assessment by the DSMB will be carried out using 2 ordinal outcomes assessed at Day 5.

If AZD7442 passes the futility assessment, enrollment of participants will be expanded, seamlessly and without any data unblinding, to include participants in disease severity stratum 2 as well as those in disease severity stratum 1. Future interim analyses will be based on the primary endpoint of sustained recovery and will use pre-specified guidelines to determine early evidence of benefit, harm, or futility for the investigational agent. Participants will be followed for 18 months following randomization.

This trial will be conducted in several hundred clinical sites. Participating sites are affiliated with networks funded by the United States National Institutes of Health (NIH) and the US Department of Veterans Affairs.


COVID-19, COVID 19, Coronaviridae Infections, Coronavirus Infections, RNA Virus Infections, Virus Diseases, Nidovirales Infections, SARS-CoV-2, SARS Coronavirus, ACTIV-3, ACTIV3, TICO, Remdesivir, Cilgavimab and tixagevimab drug combination, AZD7442


You can join if…

Open to people ages 18 years and up

  • Refer to the master protocol (NCT04501978)

You CAN'T join if...

  • Refer to the master protocol (NCT04501978)
  • Additional Exclusion Criteria:
    • Pregnant women
    • Nursing mothers
    • Women of child-bearing potential who are unwilling to acknowledge the strong advice to abstain from sexual intercourse with men or practice appropriate contraception through the entire 18 months of the study
    • Men who are unwilling to acknowledge the strong advice to abstain from sexual intercourse with women of child-bearing potential or to use barrier contraception through the entire 18 months of the study.
  • In addition, prior to the initial futility assessment which is performed when approximately 150 participants have been enrolled on AZD7442 and 150 on placebo, patients on highflow oxygen or non-invasive ventilation (category 5 of the pulmonary ordinal outcome) will be excluded. These patients may be eligible for the trial if the initial futility assessment is passed by this agent.


  • Ronald Reagan UCLA Medical Center (Site 203-002), 757 Westwood Plaza
    Los Angeles California 90095 United States
  • Lundquist Institute for Biomedical Innovation at Harbor-UCLA Medical Center (Site 066-002), 1124 W. Carson Street, CDCRC Building
    Torrance California 90502 United States
  • Cedars-Sinai Medical Center (Site 208-002), 8700 Beverly Blvd.
    Los Angeles California 90048 United States
  • Keck Hospital of USC (Site 301-020), 1500 San Pablo Street
    Los Angeles California 90033 United States
  • VA Long Beach Healthcare System (Site 074-026), 5901 East 7th Street (09/151-M2)
    Long Beach California 90822 United States


in progress, not accepting new patients
Start Date
Completion Date
National Institute of Allergy and Infectious Diseases (NIAID)
Phase 3 COVID-19 Research Study
Study Type
About 1455 people participating
Last Updated