Astrazeneca Plc Loss Submission Form

(a) initial clinical trials for the Company’s COVID-19 vaccine, AZD1222, had suffered from a critical manufacturing error, resulting in a substantial number of trial participants receiving half the designed dosage; (b) clinical trials for AZD1222 consisted of a patchwork of disparate patient subgroups, each with subtly different treatments, undermining the validity and import of the conclusions that could be drawn from the clinical data across these disparate patient populations; (c) certain clinical trial participants for AZD1222 had not received a second dose at the designated time points, but rather received the second dose up to several weeks after the dose had been scheduled to be delivered according to the original trial design; (d) AstraZeneca had failed to include a substantial number of patients over 55 years of age in its clinical trials for AZD1222, despite this patient population being particularly vulnerable to the effects of COVID-19 and thus a high priority target market for the drug; (e) AstraZeneca’s clinical trials for AZD1222 had been hamstrung by widespread flaws in design, errors in execution, and a failure to properly coordinate and communicate with regulatory authorities and the general public; (f) as a result of (a)-(e) above, the clinical trials for AZD1222 had not been conducted in accordance with industry best practices and acceptable standards and the data and conclusions that could be derived from the clinical trials was of limited utility; and (g) as a result of (a)-(f) above, AZD1222 was unlikely to be approved for commercial use in the United States in the short term, one of the largest potential markets for the drug.