Official Title
A Multicenter, Adaptive, Randomized Blinded Controlled Trial of the Safety and Efficacy of Investigational Therapeutics for the Treatment of COVID-19 in Hospitalized Adults (ACTT-4)
Brief Summary

ACTT-4 will evaluate the combination of baricitinib and remdesivir compared to dexamethasone and remdesivir. Subjects will be assessed daily while hospitalized. If the subjects are discharged from the hospital, they will have a study visit at Days 15, 22, and 29. For discharged subjects, it is preferred that the Day 15 and 29 visits are in person to obtain safety laboratory tests, oropharyngeal (OP) swabs, plasma (Day 29), and serum for secondary research as well as clinical outcome data. However, if infection control or other restrictions limit the ability of the subject to return to the clinic, these visits may be conducted by phone, and only clinical data will be obtained. The Day 22 visit does not have laboratory tests or collection of samples and is conducted by phone. The primary objective is to evaluate the clinical efficacy of baricitinib + remdesivir versus dexamethasone + remdesivir as assessed by the mechanical ventilation free survival by Day 29.

Detailed Description

This study is an adaptive randomized double-blind placebo-controlled trial to evaluate the
safety and efficacy of novel therapeutic agents in hospitalized adults diagnosed with
COVID-19. The study is a multicenter trial that will be conducted in up to approximately 100
sites globally. The study will compare different investigational therapeutic agents to a
control arm. New arms can be introduced according to scientific and public health needs.
There will be interim monitoring to allow early stopping for futility, efficacy, or safety.
If one therapy proves to be efficacious, then this treatment may become the control arm for
comparison(s) with new experimental treatment(s). Any such change would be accompanied by an
updated sample size. This adaptive platform is used to rapidly evaluate different
therapeutics in a population of those hospitalized with moderate to severe COVID-19. The
platform will provide a common framework sharing a similar population, design, endpoints, and
safety oversight. New stages with new therapeutics can be introduced. One independent Data
and Safety Monitoring Board (DSMB) will actively monitor interim data in all stages to make
recommendations about early study closure or changes to study arms.

ACTT-4 will evaluate the combination of baricitinib and remdesivir compared to dexamethasone
and remdesivir. Subjects will be assessed daily while hospitalized. If the subjects are
discharged from the hospital, they will have a study visit at Days 15, 22, and 29. For
discharged subjects, it is preferred that the Day 15 and 29 visits are in person to obtain
safety laboratory tests, oropharyngeal (OP) swabs, plasma (Day 29), and serum for secondary
research as well as clinical outcome data. However, if infection control or other
restrictions limit the ability of the subject to return to the clinic, these visits may be
conducted by phone, and only clinical data will be obtained. The Day 22 visit does not have
laboratory tests or collection of samples and is conducted by phone.

All subjects will undergo a series of efficacy, safety, and laboratory assessments. Safety
laboratory tests and blood (serum and plasma) research samples and oropharyngeal (OP) swabs
will be obtained on Days 1 (prior to infusion) and Days 3, 5, 8, and 11 (while hospitalized).
OP swabs and blood (serum only) plus safety laboratory tests will be collected on Day 15 and
29 (if the subject attends an in-person visit or are still hospitalized).

The primary objective is to evaluate the clinical efficacy of baricitinib + remdesivir versus
dexamethasone + remdesivir as assessed by the mechanical ventilation free survival by Day 29.
The key secondary objective is to evaluate the clinical efficacy of baricitinib + remdesivir
versus dexamethasone + remdesivir according to clinical status (8-point ordinal scale) at Day
15.

Contacts:

20-0006 Central Contact

Telephone: 1 (301) 7617948

Email: DMIDClinicalTrials@niaid.nih.gov

Completed
COVID-19

Drug: Baricitinib

Baricitinib is a Janus kinase (JAK) inhibitor with the chemical name [1-(ethylsulfonyl)-3-(4-(7Hpyrrolo(2,3-d)pyrimidin-4-yl)-1H-pyrazol-1-yl)azetidin-3-yl]acetonitrile. Each tablet contains 2 mg of baricitinib and the following inactive ingredients: croscarmellose sodium, magnesium stearate, mannitol, microcrystalline cellulose, ferric oxide, lecithin (soya), polyethylene glycol, polyvinyl alcohol, talc and titanium dioxide.

Drug: Dexamethasone

Dexamethasone Sodium Phosphate Injection, USP, is an adrenocortical steroid anti-inflammatory drug. It is a water-soluble inorganic ester of dexamethasone. Each mL contains dexamethasone sodium phosphate equivalent to dexamethasone phosphate 4 mg or dexamethasone 3.33 mg; benzyl alcohol 10 mg added as preservative; sodium citrate dihydrate 11 mg; sodium sulfite 1 mg as an antioxidant.

Other: Placebo

Placebo matching oral baricitinib or intravenous dexamethasone.

Drug: Remdesivir

Drug remdesivir is a single diastereomer monophosphoramidate prodrug designed for the intracellular delivery of a modified adenine nucleoside analog GS-441524. In addition to the active ingredient, the lyophilized formulation of remdesivir contains the following inactive ingredients: water for injection, sulfobutylether beta-cyclodextrin sodium (SBECD), and hydrochloric acid and/or sodium hydroxide.

Eligibility Criteria

Inclusion Criteria:

1. Hospitalized with symptoms suggestive of COVID-19.

2. Subject (or legally authorized representative) provides informed consent prior to
initiation of any study procedures and understands and agrees to comply with planned
study procedures.

3. Male or non-pregnant female adult > / = 18 years of age at time of enrollment.

4. Illness of any duration and has laboratory-confirmed SARS-CoV-2 infection as
determined by polymerase chain reaction (PCR) or other commercial or public health
assay (e.g. NAAT, antigen test) in any respiratory specimen or saliva < / = 14 days
prior to randomization.

5. Within the 7 days prior to randomization requiring new use of supplemental oxygen (or
increased oxygen requirement if on chronic oxygen) and requires at the time of
randomization low or high flow oxygen devices or use of non-invasive mechanical
ventilation (ordinal scale category 5 or 6).

6. Women of childbearing potential must agree to either abstinence or use at least one
primary form of contraception not including hormonal contraception from the time of
screening through Day 29.

7. Agrees not to participate in another blinded clinical trial (both pharmacologic and
other types of interventions) for the treatment of COVID-19 through Day 29.

Exclusion Criteria:

1. Prior enrollment in ACTT-3 or ACTT-4. Note: this includes subjects whose participation
in ACTT was terminated early.

2. On invasive mechanical ventilation at the time of randomization (ordinal scale
category 7).

3. Anticipated discharge from the hospital or transfer to another hospital which is not a
study site within 72 hours of randomization.

4. Positive test for influenza virus during the current illness (influenza testing is not
required by protocol).

5. Subjects with a low glomerular filtration rate (eGFR), specifically:

1. Subjects with an eGFR 15-30 mL/min are excluded unless in the opinion of the PI,
the potential benefit of participation outweighs the potential risk of study
participation.

2. All subjects with an eGFR <15 mL/min

3. All subjects on hemodialysis and/or hemofiltration at screening, irrespective of
eGFR are excluded.

6. Neutropenia (absolute neutrophil count <700 cells/microliter, 0.7 x 10^3/microliter).

7. Lymphopenia (absolute lymphocyte count <200 cells/microliter, 0.20 x 10^3/microliter).

8. Received five or more doses of remdesivir including the loading dose, outside of the
study as treatment for COVID-19.

9. Pregnancy or breast feeding (lactating women who agree to discard breast milk from Day
1 until two weeks after the last study product is given are not excluded).

10. Allergy to any study medication.

11. Received convalescent plasma or intravenous immunoglobulin [IVIg] for COVID-19, the
current illness for which they are being enrolled.

12. Received any of the following in the two weeks prior to screening as treatment of
COVID-19:

- More than one dose of baricitinib for the treatment of COVID-19;

- Other small molecule tyrosine kinase inhibitors (e.g. imatinib, gefitinib,
acalabrutinib, etc.);

- monoclonal antibodies targeting cytokines (e.g., TNF inhibitors,
anti-interleukin-1 [IL-1], anti-IL-6 [tocilizumab or sarilumab], etc.);

- monoclonal antibodies targeting T-cells or B-cells as treatment for COVID-19.
Note: receipt of anti-SARS-CoV-2 monoclonal antibody (mAb) prior to enrollment
(e.g. bamlanivimab) for their current COVID-19 illness is not exclusionary

13. Use of probenecid that cannot be discontinued at study enrollment.

14. Received 6 mg or more of dexamethasone by mouth (po) or Intravenous (IV) (or
equivalent for other glucocorticoids) in one day, on more than one day, in the 7 days
prior to time of randomization. Note: 6 mg dexamethasone dose equivalents include 40
mg prednisone, 32 mg methylprednisolone and 160 mg hydrocortisone.

15. Received > / = 20 mg/day of prednisone po or IV (or equivalent for other
glucocorticoids) for > / = 14 consecutive days in the 4 weeks prior to screening.

16. Have diagnosis of current active or latent tuberculosis (TB), if known, treated for
less than 4 weeks with appropriate therapy (by history only, no screening required).

17. Serious infection (besides COVID-19), immunosuppressive state, or immunosuppressive
medications that in the opinion of the investigator could constitute a risk when
taking baricitinib or dexamethasone.

18. Have received any live vaccine (that is, live attenuated) within 4 weeks before
screening, or intend to receive a live vaccine (or live attenuated) during the study.
Note: Use of non-live (inactivated) vaccinations including SARS-CoV-2 vaccine is
allowed for all subjects.

19. Had a known Venous thromboembolism (VTE)(deep vein thrombosis [DVT] or pulmonary
embolism [PE]) during the current COVID-19 illness.

Eligibility Gender
All
Eligibility Age
Minimum: 18 Years ~ Maximum: 99 Years
Countries
Japan
Korea, Republic of
Mexico
Singapore
United States
Locations

University of Alabama at Birmingham School of Medicine - Infectious Disease
Birmingham, Alabama, United States

UCSF Fresno Center for Medical Education and Research - Clinical Research Center
Fresno, California, United States

University of California San Diego Health - Jacobs Medical Center
La Jolla, California, United States

University of California Los Angeles Medical Center - Westwood Clinic
Los Angeles, California, United States

University of California Irvine Medical Center - Infectious Disease
Orange, California, United States

VA Palo Alto Health Care System - Infectious Diseases
Palo Alto, California, United States

University of California Davis Medical Center - Internal Medicine - Infectious Disease
Sacramento, California, United States

Kaiser Permanente San Diego Medical Center
San Diego, California, United States

Naval Medical Center San Diego - Infectious Disease Clinic
San Diego, California, United States

University of California San Francisco - Zuckerberg San Francisco General Hospital - Division of Human Immunodeficiency Virus, Infectious Disease, and Global Medicine
San Francisco, California, United States

Stanford University - Stanford Hospital and Clinics - Pediatrics - Infectious Diseases
Stanford, California, United States

Cedars Sinai Medical Center
West Hollywood, California, United States

VA Eastern Colorado Health Care System
Aurora, Colorado, United States

Denver Health Division of Hospital Medicine - Main Campus
Denver, Colorado, United States

Georgetown University Medical Center - Division of Infectious Diseases
Washington, District of Columbia, United States

University of Florida Health - Shands Hospital - Division of Infectious Diseases and Global Medicine
Gainesville, Florida, United States

University of Florida Health - Jacksonville - Department of Emergency Medicine
Jacksonville, Florida, United States

University of Miami Miller School of Medicine - Infectious Diseases
Miami, Florida, United States

Emory Vaccine Center - The Hope Clinic
Decatur, Georgia, United States

Atlanta VA Medical Center - Infectious Diseases Clinic
Decatur, Georgia, United States

Tripler Army Medical Center
Honolulu, Hawaii, United States

Northwestern Hospital - Infectious Disease
Chicago, Illinois, United States

University of Illinois at Chicago College of Medicine - Division of Infectious Diseases
Chicago, Illinois, United States

University of Iowa Hospitals & Clinics - Department of Internal Medicine
Iowa City, Iowa, United States

Tulane University - Section of Pulmonary Diseases, Critical Care, and Environmental Medicine
New Orleans, Louisiana, United States

University of Maryland School of Medicine - Center for Vaccine Development - Baltimore
Baltimore, Maryland, United States

Johns Hopkins Hospital - Medicine - Infectious Diseases
Baltimore, Maryland, United States

Walter Reed National Military Medical Center
Bethesda, Maryland, United States

National Institutes of Health - Clinical Center, National Institute of Allergy and Infectious Diseases Laboratory Of Immunoregulation, Clinical Research Section
Bethesda, Maryland, United States

Massachusetts General Hospital - Infectious Diseases
Boston, Massachusetts, United States

University of Massachusetts Medical School - Infectious Diseases and Immunology
Worcester, Massachusetts, United States

University of Michigan - Infectious Disease Clinic at Taubman Center
Ann Arbor, Michigan, United States

University of Minnesota Medical Center, Fairview - Infectious Diseases and International Medicine
Minneapolis, Minnesota, United States

Saint Louis University - Center for Vaccine Development
Saint Louis, Missouri, United States

University of Nebraska Medical Center - Infectious Diseases
Omaha, Nebraska, United States

CHI Health Creighton University Medical Center - Bergan Mercy - Pulmonary Medicine
Omaha, Nebraska, United States

Atlantic Health System - Morristown Medical Center
Morristown, New Jersey, United States

University of New Mexico Clinical and Translational Science Center
Albuquerque, New Mexico, United States

Montefiore Medical Center - Infectious Diseases
Bronx, New York, United States

New York University School of Medicine - Langone Medical Center - Microbiology - Parasitology
New York, New York, United States

University of Rochester Medical Center - Vaccine Research Unit
Rochester, New York, United States

Duke Human Vaccine Institute - Duke Vaccine and Trials Unit
Durham, North Carolina, United States

Womack Army Medical Center - Pulmonary and Respiratory Services
Fort Bragg, North Carolina, United States

University of Oklahoma Health Science Center - Surgery
Oklahoma City, Oklahoma, United States

Kaiser Permanente Northwest - Center for Health Research
Portland, Oregon, United States

Penn State Health Milton S. Hershey Medical Center - Division of Infectious Diseases
Hershey, Pennsylvania, United States

Hospital of the University of Pennsylvania - Infectious Diseases
Philadelphia, Pennsylvania, United States

University of Pittsburgh - Medicine - Infectious Diseases
Pittsburgh, Pennsylvania, United States

Baylor Scott & White Health - Baylor University Medical Center - North Texas Infectious Disease Consultants
Dallas, Texas, United States

University of Texas Southwestern Medical Center - Internal Medicine - Infectious Diseases
Dallas, Texas, United States

Brooke Army Medical Center
Fort Sam Houston, Texas, United States

University of Texas Medical Branch - Division of Infectious Disease
Galveston, Texas, United States

Methodist Hospital - Houston
Houston, Texas, United States

Baylor College of Medicine - Molecular Virology and Microbiology
Houston, Texas, United States

University of Texas Health Science Center at San Antonio - Infectious Diseases
San Antonio, Texas, United States

University of Utah - Infectious Diseases
Salt Lake City, Utah, United States

University of Virginia - Acute Care Surgery
Charlottesville, Virginia, United States

Naval Medical Center Portsmouth - Infectious Disease Division
Portsmouth, Virginia, United States

EvergreenHealth Infectious Disease Service
Kirkland, Washington, United States

Providence Sacred Heart Medical Center
Spokane, Washington, United States

Madigan Army Medical Center - Infectious Disease Clinic
Tacoma, Washington, United States

Tokyo Medical and Dental University - Medical Hospital - Department of Respiratory Medicine
Tokyo, Japan

National Center for Global Health and Medicine Hospital - Disease Control and Prevention Center
Tokyo, Japan

Seoul National University Bundang Hospital - Division of Infectious Diseases
Bundang-gu Seongnam-si, Gyeonggi-do, Korea, Republic of

Seoul National University Hospital
Seoul, Jongno-gu, Korea, Republic of

Instituto Nacional de Ciencias Medicas y Nutrición Salvador Zubirán - Departamento de Infectologia
Mexico City, Mexico

Instituto Nacional de Enfermedades Respiratorias (INER) - Ismael Cosío Villegas
Mexico City, Mexico

National University Health System - Division of Infectious Diseases
Singapore, Singapore

National University Health System - Alexandra Hospital - Division of Infectious Diseases
Singapore, Singapore

National Centre for Infectious Diseases
Singapore, Singapore

Changi General Hospital - Clinical Trials and Research Unit (CTRU)
Singapore, Singapore

Ng Teng Fong General Hospital - Infectious Disease Service
Singapore, Singapore

National Institute of Allergy and Infectious Diseases (NIAID)
NCT Number
Keywords
ACTT
Adaptive
Covid-19
Efficacy
Multicenter
novel coronavirus
safety
MeSH Terms
COVID-19
Remdesivir
Dexamethasone