id,agency_id,docket_id,title,document_type,subtype,posted_date,posted_year,posted_month,comment_start_date,comment_end_date,last_modified,fr_doc_num,open_for_comment,withdrawn,object_id FDA-2016-E-4590-0009,FDA,FDA-2016-E-4590,Letter to U. S. Patent and Trademark Office,Other,Letter(s),2025-11-24T05:00:00Z,2025,11,2025-11-24T05:00:00Z,,2025-11-25T03:04:43Z,,0,0,09000064b909515d FDA-2016-E-4590-0008,FDA,FDA-2016-E-4590,Letter to U. S. Patent and Trademark Office,Other,Letter(s),2025-09-19T04:00:00Z,2025,9,2025-09-19T04:00:00Z,,2025-09-19T20:44:49Z,,0,0,09000064b8fb4910 FDA-2016-E-4590-0007,FDA,FDA-2016-E-4590,Determination of Regulatory Review Period for Purposes of Patent Extension; XTAMPZA ER,Notice,Determinations,2024-12-30T05:00:00Z,2024,12,2024-12-30T05:00:00Z,2025-03-01T04:59:59Z,2024-12-30T17:07:31Z,2024-31023,0,0,0900006486894b76 FDA-2016-E-4590-0006,FDA,FDA-2016-E-4590,Letter to U.S. Patent and Trademark Office,Other,Letter(s),2024-12-19T05:00:00Z,2024,12,2024-12-19T05:00:00Z,,2024-12-19T13:28:53Z,,0,0,090000648687e050 FDA-2016-E-4590-0005,FDA,FDA-2016-E-4590,Requirement for Information,Other,Letter(s),2024-04-10T04:00:00Z,2024,4,2024-04-10T04:00:00Z,,2024-04-10T16:33:38Z,,0,0,09000064864c1954 FDA-2016-E-4590-0004,FDA,FDA-2016-E-4590,Letter from U.S. Patent and Trademark Office to FDA CDER,Other,Letter(s),2024-03-22T04:00:00Z,2024,3,2024-03-22T04:00:00Z,,2024-03-22T18:18:49Z,,0,0,090000648648d31e FDA-2016-E-4590-0003,FDA,FDA-2016-E-4590,Letter to U S Patent and Trademark Office,Other,Letter(s),2023-10-20T04:00:00Z,2023,10,2023-10-20T04:00:00Z,,2025-11-01T00:53:50Z,,0,0,09000064861135f1 FDA-2016-E-4590-0001,FDA,FDA-2016-E-4590,"Patent Extension Application from Cooley LLP (on behalf of Collegium Pharmaceutical, Inc)",Other,Letter(s),2016-12-28T05:00:00Z,2016,12,2016-12-28T05:00:00Z,,2016-12-28T18:48:24Z,,0,0,090000648243b930 FDA-2016-E-4590-0002,FDA,FDA-2016-E-4590,Letter from U.S. Patent and Trademark Office to CDER,Other,Letter(s),2016-12-28T05:00:00Z,2016,12,2016-12-28T05:00:00Z,,2016-12-28T18:49:00Z,,0,0,090000648243b933