    <SEC-DOCUMENT>0001104659-21-051094-index.html : 20210416
    <SEC-HEADER>0001104659-21-051094.hdr.sgml : 20210416
    <ACCEPTANCE-DATETIME>20210416080401
    ACCESSION NUMBER:		0001104659-21-051094
    CONFORMED SUBMISSION TYPE:	DEFA14A
    PUBLIC DOCUMENT COUNT:		3
    FILED AS OF DATE:		20210416
    DATE AS OF CHANGE:		20210416

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			CATABASIS PHARMACEUTICALS INC
    		CENTRAL INDEX KEY:			0001454789
    		STANDARD INDUSTRIAL CLASSIFICATION:	PHARMACEUTICAL PREPARATIONS [2834]
    		IRS NUMBER:				000000000
    		STATE OF INCORPORATION:			DE
    		FISCAL YEAR END:			1231

    	FILING VALUES:
    		FORM TYPE:		DEFA14A
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	001-37467
    		FILM NUMBER:		21830136

    	BUSINESS ADDRESS:
    		STREET 1:		100 HIGH STREET
    		STREET 2:		28TH FLOOR
    		CITY:			BOSTON
    		STATE:			MA
    		ZIP:			02110
    		BUSINESS PHONE:		617-349-1971

    	MAIL ADDRESS:
    		STREET 1:		100 HIGH STREET
    		STREET 2:		28TH FLOOR
    		CITY:			BOSTON
    		STATE:			MA
    		ZIP:			02110
    </SEC-HEADER>
    <DOCUMENT>
    <TYPE>DEFA14A
    <SEQUENCE>1
    <FILENAME>tm2112664d1_defa14a.htm
    <DESCRIPTION>DEFA14A
    <TEXT>
    Document 1 - file: tm2112664d1_defa14a.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>2
    <FILENAME>tm2112664d1_defa14aimg001.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 2 - file: tm2112664d1_defa14aimg001.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>3
    <FILENAME>tm2112664d1_defa14aimg002.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 3 - file: tm2112664d1_defa14aimg002.jpg

    </DOCUMENT>
    </SEC-DOCUMENT>