    <SEC-DOCUMENT>0000914475-23-000033-index.html : 20230405
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    <ACCEPTANCE-DATETIME>20230405160338
    ACCESSION NUMBER:		0000914475-23-000033
    CONFORMED SUBMISSION TYPE:	DEFA14A
    PUBLIC DOCUMENT COUNT:		3
    FILED AS OF DATE:		20230405
    DATE AS OF CHANGE:		20230405

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			NEUROCRINE BIOSCIENCES INC
    		CENTRAL INDEX KEY:			0000914475
    		STANDARD INDUSTRIAL CLASSIFICATION:	BIOLOGICAL PRODUCTS (NO DIAGNOSTIC SUBSTANCES) [2836]
    		IRS NUMBER:				330525145
    		STATE OF INCORPORATION:			DE
    		FISCAL YEAR END:			1231

    	FILING VALUES:
    		FORM TYPE:		DEFA14A
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	000-22705
    		FILM NUMBER:		23802452

    	BUSINESS ADDRESS:
    		STREET 1:		12780 EL CAMINO REAL
    		CITY:			SAN DIEGO
    		STATE:			CA
    		ZIP:			92130
    		BUSINESS PHONE:		(858) 617-7600

    	MAIL ADDRESS:
    		STREET 1:		12780 EL CAMINO REAL
    		CITY:			SAN DIEGO
    		STATE:			CA
    		ZIP:			92130
    </SEC-HEADER>
    <DOCUMENT>
    <TYPE>DEFA14A
    <SEQUENCE>1
    <FILENAME>a2022additionalmaterialsa.htm
    <DESCRIPTION>DEFA14A
    <TEXT>
    Document 1 - file: a2022additionalmaterialsa.htm

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    <TYPE>GRAPHIC
    <SEQUENCE>2
    <FILENAME>additionalmaterials_pagex1a.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 2 - file: additionalmaterials_pagex1a.jpg

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    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>3
    <FILENAME>additionalmaterials_pagex2a.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 3 - file: additionalmaterials_pagex2a.jpg

    </DOCUMENT>
    </SEC-DOCUMENT>