The COVID-19 pandemic has caused major disruption to healthcare systems with significant socioeconomic impacts. Currently, there are no licensed preventions available against COVID-19 and accelerated vaccine development is urgently needed. A safe and effective vaccine for COVID 19 prevention would have significant global public health impact.
Drug: AZD1222
For subjects in part 1 will have that route of Administration as Intramuscular, 5 × 1010 vp (nominal, ± 1.5 × 1010 vp) on V2
Drug: 0.9% (w/v) saline
For subjects in placebo will have that route of Administration as Intramuscular 0.9% (w/v) saline on V2 and V6.
Inclusion Criteria:
- Participants aged 18 to 55 years (Cohort A and C), aged 56 to 69 years (Subcohorts B1
and D1), or aged ≥ 70 years (Subcohorts B2 and D2)
Exclusion Criteria:
1. Known past laboratory-confirmed SARS-CoV-2 infection
2. Positive SARS-CoV-2 RT PCR test at screening
3. Seropositivity to SARS-CoV-2 at screening.
4. Significant infection or other illness, including fever > 37.8°C on the day prior to
or day randomization
5. History of Guillain-Barré syndrome
6. Any confirmed or suspected immunosuppressive or immunodeficient state; asplenia;
recurrent severe infections and use of immunosuppressant medication within the past 6
months, except topical steroids or short-term oral steroids (course lasting ≤ 14 days)
7. History of allergy to any component of the vaccine
8. Any history of angioedema
9. Any history of anaphylaxis
10. Current diagnosis of or treatment for cancer (except basal cell carcinoma of the skin
and uterine cervical carcinoma in situ)
11. History of serious psychiatric condition likely to affect participation in the study
12. Bleeding disorder (eg, factor deficiency, coagulopathy or platelet disorder), or prior
history of significant bleeding or bruising following IM injections or venepuncture
13. Suspected or known current alcohol or drug dependency
14. Any other significant disease, disorder or finding which may significantly increase
the risk to the participant because of participation in the study, affect the ability
of the participant to participate in the study or impair interpretation of the study
data
15. Severe and/or uncontrolled cardiovascular disease, respiratory disease,
gastrointestinal disease, liver disease, renal disease, endocrine disorder and
neurological illness (mild/moderate well controlled comorbidities are allowed)
Research Site
Fukuoka-shi, Japan
Research Site
Hachioji-shi, Japan
Research Site
Minato-ku, Japan
Research Site
Sumida-ku, Japan
Research Site
Toshima-ku, Japan