
    insufficient accrual rate
  
['covid19']
['rtb101', 'placebo']

        Inclusion Criteria:

          -  Informed consent must be obtained from the subject or health care proxy before any
             assessment is performed.

          -  Adults (male and female) aged 65 years and over.

          -  Residing in a nursing home in which one or more residents or staff has developed
             laboratory-confirmed symptomatic COVID-19 infection at the time of randomization

        Exclusion Criteria:

        Subjects will not be eligible if they meet any of the following criteria:

          -  Any subject who is a current smoker or has a ≥ 10 pack year smoking history.

          -  Subjects with a medical history of chronic obstructive pulmonary disease (COPD).

          -  Subjects who are in hospice or receiving comfort care only.

          -  Subjects who have symptomatic laboratory-confirmed COVID-19 at the time of screening
             or randomization.

          -  Subjects with current evidence of an unstable medical disorder including an unstable
             respiratory disorder, gastrointestinal disorder (including Child-Pugh class B and C
             hepatic impairment), renal disorder (including subjects with an estimated glomerular
             filtration rate (eGFR) ≤30 mL/min/1.73m2), or hematologic disorder (including active
             leukemia).

          -  Subjects receiving immunosuppressive therapy including chronic use of prednisone >10
             mg daily (however, inhaled corticosteroids and acute use of higher doses of prednisone
             to treat conditions such as exacerbation of asthma or other acute conditions are
             allowed).

          -  Subjects with an immunodeficiency disease, including a positive human immunodeficiency
             virus (HIV) test result.

          -  Sexually active males with a partner of child-bearing potential
      