Study identifier:D8670C00001
ClinicalTrials.gov identifier:NCT06147063
EudraCT identifier:N/A
CTIS identifier:N/A
A Phase I, Open-label, Randomized, Active-Controlled Study in Adults to Characterize the Safety and Immunogenicity of AZD9838 and AZD6563 Vaccine (ARTEMIS-C)
COVID-19
Phase 1
Yes
-
All
243
Interventional
18 Years - n/a
Allocation: Randomized
Endpoint Classification: -
Intervention Model: Parallel Assignment
Masking: -
Primary Purpose: Prevention
Verified 01 Aug 2026 by AstraZeneca
AstraZeneca
-
No locations available
| Arms | Assigned Interventions |
|---|---|
| Experimental: AZ BA.4/5 5µg, 18-64 years Participants received a single intramuscular dose of AZD9838. | Biological/Vaccine: AZD9838 Intramuscular (IM) injection. |
| Experimental: AZ BA.4/5 10µg, 18-64 years Participants received a single intramuscular dose of AZD9838. | Biological/Vaccine: AZD9838 Intramuscular (IM) injection. |
| Active Comparator: Pfizer XBB.1.5, 18-64 years Participants received a single intramuscular dose of the Pfizer XBB.1.5 vaccine. | Biological/Vaccine: Licensed SARS-CoV-2 mRNA vaccine Intramuscular (IM) injection. |
| Experimental: AZ XBB.1.5 5µg, 18-64 years Participants received a single intramuscular dose of AZD6563. | Biological/Vaccine: AZD6563 Intramuscular (IM) injection. |
| Experimental: AZ XBB.1.5 10µg, 18-64 years Participants received a single intramuscular dose of AZD6563. | Biological/Vaccine: AZD6563 Intramuscular (IM) injection. |
| Experimental: AZ XBB.1.5 5µg, >=65 years Participants received a single intramuscular dose of AZD6563. | Biological/Vaccine: AZD6563 Intramuscular (IM) injection. |
| Experimental: AZ XBB.1.5 10µg, >=65 years Participants received a single intramuscular dose of AZD6563. | Biological/Vaccine: AZD6563 Intramuscular (IM) injection. |
| Active Comparator: Pfizer XBB.1.5, >=65 years Participants received a single intramuscular dose of the Pfizer XBB.1.5 vaccine. | Biological/Vaccine: Licensed SARS-CoV-2 mRNA vaccine Intramuscular (IM) injection. |