Currently Enrolling Outpatient
COVID-19 Investigational Vaccine Study (CIR 339) Astra Zeneca


The purpose of this study is to evaluate an investigational vaccine for the prevention of COVID-19 in adults.

You may be able to take part if you:

  • are 18 years of age or older
  • are in good or stable health (you may have an underlying medical condition and still take part, if your disease is stable)
  • have an increased risk of getting COVID-19
  • do not have a previously confirmed diagnosis of COVID-19.

The study has 3 parts.

  • Screening Period (up to14 days):  You will visit the study center to see if the study is right for you, learn more about it, and decide whether you want to take part.
  • Study treatment (4 weeks): you will visit the study center 2 or 3 times for study assessments.  At 2 of these visits, you will receive the study injection (either the investigational vaccine or placebo).  The study center staff will contact you by phone 7 days after each study injections.
  • Follow-up period (about 2 years):  You will visit the study center up to 6 times for study assessments after you have received the study injections.  Additional visits may be required if you develop signs of COVID-19 during the study.

To find out more:

Screening Dates
Wednesday, September 23, 2020 (8:30 am - 11:30 am)
Thursday, September 24, 2020 (1:00 pm - 4:00 pm)
Friday, September 25, 2020 (8:30 am - 11:30 am)
Screening Location
CIR Isolation Unit at Johns Hopkins Bayview
301 Mason Lord Drive, 4th Floor
Baltimore, MD 21224
Study Period
2 years
Main Study: Up to $860
Sub-study: $1040