Amgen Inc., Immunex Corporation, Amgen Manufacturing, Limited v. Gail Mizner

NOTE: This order is nonprecedential.
United States Court of Appeals
for the Federal Circuit
______________________
AMGEN INC., IMMUNEX CORPORATION, AMGEN
MANUFACTURING, LIMITED,
Plaintiffs-Appellants
v.
GAIL MIZNER, in her official capacity as Chair of
the Colorado Prescription Drug Affordability Re-
view Board, SAMI DIAB, in his official capacity as a
member of the Colorado Prescription Drug Afforda-
bility Review Board, AMARYLIS GUTIERREZ, in
her official capacity as a member of the Colorado
Prescription Drug Affordability Review Board,
CATHERINE HARSHBARGER, in her official ca-
pacity as a member of the Colorado Prescription
Drug Affordability Review Board, JAMES JUSTIN
VANDENBERG, in his official capacity as a member
of the Colorado Prescription Drug Affordability Re-
view Board, MICHAEL CONWAY, in his official ca-
pacity as Commissioner of the Colorado Division of
Insurance, PHILIP WEISER, in his official capacity
as Attorney General of the State of Colorado,
Defendants-Appellees
______________________
2025-1641
______________________
Case: 25-1641 Document: 42 Page: 1 Filed: 02/02/2026

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AMGEN INC. v. COLORADO PRES. DRUG AFFORDABILITY REVIEW
BOARD
2
Appeal from the United States District Court for the
District of Colorado in No. 1:24-cv-00810-NYW-SBP, Judge
Nina Y. Wang.
______________________
O R D E R
The parties submit a joint stipulation to voluntarily
dismiss this appeal without prejudice pursuant to Federal
Rule of Appellate Procedure 42(b), with each side to bear
its own costs.
This court generally does not specify whether a dismis-
sal of an appeal is with or without prejudice.
Upon consideration thereof,
IT IS ORDERED THAT:
(1) The appeal is dismissed.
(2) Each side shall bear its own costs.
February 2, 2026
Date
FOR THE COURT
ISSUED AS A MANDATE: February 2, 2026
Case: 25-1641 Document: 42 Page: 2 Filed: 02/02/2026

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