Dear Health New Zealand,

The questions under this request are numbered to seperate from explanatory material for clarity.

1. Please explain, or provide material that does explain, the apparent variation in expiry length of the paediatric Pfizer Covid vaccines that entered New Zealand.

FN4074 first entered NZ 13/1/22 and had expiry date of 30/4/23.

An extension to expiry dates for paediatric vaccines was applied 13/4/22 which increased the expiry date from 9 months to one year from manufacture.

A further extension to 18 months expiry date was applied to multiple dose vials with orange caps and labels with an orange border in late in 2022.

2. Please confirm the date this extension to 18 months expiry was applied.

For FN4074 to have an expiry date of 30/4/23 the expiry date prior to the extension to 18 months would have been 31/10/22. Taking into account the extension to one year expiry applied in April 2022, this infers a manufacturing date for FN4074 of November 2021. Original expiry would have been 9 months at 30/7/22 then the extension to one year revised expiry date to 31/10/22.

FN4074 would only have been captured by the extension to 18 months if this was applied prior to 31/10/22.

3. If FN4074 was given an extension, why would this not have applied to FR4268 with an expiry of 30/11/22?

Yours faithfully,

Catherine Jamieson