<SEC-DOCUMENT>0001493152-19-019859-index.html : 20191230
<SEC-HEADER>0001493152-19-019859.hdr.sgml : 20191230
<ACCEPTANCE-DATETIME>20191230154634
ACCESSION NUMBER:		0001493152-19-019859
CONFORMED SUBMISSION TYPE:	SC 13G
PUBLIC DOCUMENT COUNT:		2
FILED AS OF DATE:		20191230
DATE AS OF CHANGE:		20191230

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			AVADEL PHARMACEUTICALS PLC
		CENTRAL INDEX KEY:			0001012477
		STANDARD INDUSTRIAL CLASSIFICATION:	PHARMACEUTICAL PREPARATIONS [2834]
		IRS NUMBER:				000000000
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13G
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	005-50223
		FILM NUMBER:		191316589

	BUSINESS ADDRESS:	
		STREET 1:		BLOCK 10-1 BLANCHARDSTOWN CORPORATE PARK
		STREET 2:		BALLYCOOLIN
		CITY:			DUBLIN
		STATE:			L2
		ZIP:			15
		BUSINESS PHONE:		636-449-1830

	MAIL ADDRESS:	
		STREET 1:		16640 CHESTERFIELD GROVE ROAD
		STREET 2:		SUITE 200
		CITY:			CHESTERFIELD
		STATE:			MO
		ZIP:			63005

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	FLAMEL TECHNOLOGIES SA
		DATE OF NAME CHANGE:	19960422

FILED BY:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			RTW INVESTMENTS, LP
		CENTRAL INDEX KEY:			0001493215
		IRS NUMBER:				000000000
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13G

	BUSINESS ADDRESS:	
		STREET 1:		412 WEST 15TH STREET
		STREET 2:		9TH FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10011
		BUSINESS PHONE:		646-597-6980

	MAIL ADDRESS:	
		STREET 1:		412 WEST 15TH STREET
		STREET 2:		9TH FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10011

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	RTW INVESTMENTS, LLC
		DATE OF NAME CHANGE:	20100602
</SEC-HEADER>
<DOCUMENT>
<TYPE>SC 13G
<SEQUENCE>1
<FILENAME>formsc13g.htm
<TEXT>
Document 1 - file: formsc13g.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-1
<SEQUENCE>2
<FILENAME>ex1.htm
<TEXT>
Document 2 - file: ex1.htm

</DOCUMENT>
</SEC-DOCUMENT>