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# FDA Determines Regulatory Review Period for Merck’s Gardasil 9
- URL: https://www.fdaweb.com/fda-determines-regulatory-review-period-for-mercks-gardasil-9/
- Published: 2016-12-07T12:00:00.000Z
- Updated: 2026-09-14T21:53:03.000Z
- Author: David McFarland
- Tags: FDA Policy/General, #legacy-id-D5137512

*Federal Register* Notice: FDA has determined the regulatory review period for Merck’s Gardasil 9 (human papillomavirus 9-valent vaccine, recombinant) for patent extension purposes is 2,662 days. Of this time, 2,296 days occurred during the testing phase, while 366 days occurred during the approval phase. To view the notice, click [here](https://www.gpo.gov/fdsys/pkg/FR-2016-12-07/pdf/2016-29303.pdf?ref=fdaweb.com).