UNITED STATES
                     SECURITIES AND EXCHANGE COMMISSION 
                           Washington, D.C. 20549 

                                  FORM 6-K 

                      REPORT OF FOREIGN PRIVATE ISSUER
                      PURSUANT TO RULE 13a-16 OR 15d-16
                    OF THE SECURITIES EXCHANGE ACT OF 1934 

                                March 15, 2005 

                         Commission File Number 0-21392 

                            AMARIN CORPORATION PLC 
               (Translation of registrant's name into English) 

                              7 Curzon Street
                              London W1J 5HG
                                 England
                   (Address of principal executive offices) 

     Indicate by check mark whether the registrant files or will file annual
reports under cover of Form 20-F or Form 40-F: 

               Form 20-F [X]       Form 40-F [   ]

     Indicate by check mark whether by furnishing the information contained
in this Form, the registrant is also thereby furnishing the information to the
Commission pursuant to Rule 12g3-2(b) under the Securities Exchange Act of 1934.


                  Yes [   ]       No [X]



Attachment:

Material Events 

(a)  Amarin Corporation announces positive clinical data for Miraxion(TM)
to treat unresponsive depression.


   This report on Form 6-K is hereby incorporated by reference
in (a) the registration statement on Form F-3 (Registration No.
333-104748) of Amarin Corporation plc and in the prospectus
contained therein, (b) the registration statement on Form F-3
(Registration No. 333-13200) of Amarin Corporation plc and in the
prospectus contained therein, (c) the registration statement on
Form F-3 (Registration No. 333-12642) of Amarin Corporation plc and
in the prospectus contained therein, (d) the registration statement
on Form F-3 (Registration No. 333-121431) of Amarin Corporation plc and
in the prospectus contained therein and (e) the registration statement
on Form F-3 (Registration No. 333-121760) of Amarin Corporation plc and
in the prospectus contained therein,, and this report on Form 6-K
shall be deemed a part of each such registration statement from the
date on which this report is filed, to the extent not superseded by
documents or reports subsequently filed or furnished by Amarin
Corporation plc under the Securities Act of 1933 or the Securities
Exchange Act of 1934. 



                                SIGNATURES 

Pursuant to the requirements of the Securities Exchange Act of 1934, the
registrant has duly caused this report to be signed on its behalf by the
undersigned, thereunto duly authorized. 


                                    AMARIN CORPORATION PLC

                                    By: /s/ JONATHAN LAMB
                                    Name: Jonathan Lamb
                                    Title: Secretary

Date: March 15, 2005 



EXHIBIT INDEX 




Index to Exhibits 


Exhibit Item                      Sequentially Numbered Page

(a) Material event description                4





Contact:
Rick Stewart
Chief Executive Officer
Amarin Corporation plc
Phone: +44 (0) 207 907 2442
investor.relations@amarincorp.com

Alan Cooke
Chief Financial Officer
Amarin Corporation plc
Phone: +44 (0) 207 907 2442
investor.relations@amarincorp.com



AMARIN CORPORATION ANNOUNCES ADDITIONAL POSITIVE CLINICAL DATA
FOR MIRAXION(TM) TO TREAT UNRESPONSIVE DEPRESSION
-- Consistent data in three Phase IIa clinical trials in
depression patients with melancholic characteristics --


LONDON, United Kingdom, March 15, 2005 - Amarin Corporation plc (NASDAQSC:
AMRN) today announced positive data analysis from a third exploratory phase
IIa clinical trial using Miraxion to treat depression.  Miraxion was used
as adjunct therapy (with either SSRI's or tricyclics) in 115 patients with
treatment-unresponsive depression in a 12-week double blind, placebo controlled
clinical trial.  The Hamilton Depression Rating Scale (HDRS) was used as the
primary efficacy measure.  Although in the whole group Miraxion did not show
a significant difference over placebo, an exploratory analysis demonstrated
significant superiority (p < 0.05) in the subgroup of depression patients
(n = 70) with melancholic characteristics using a repeated measurements design.

This sub-group of depression patients was defined by using select criteria from
DSM-IV (Diagnostic and Statistical Manual of Mental Disorders - Fourth Edition)
which is the main diagnostic reference of Mental Health professionals in the
United States of America, published by the American Psychiatric Association,
Washington D.C.  Identical methodology was used to identify melancholic
depression patients in the previously announced data analysis from the 77
patient monotherapy trial and the 70 patient adjunct therapy depression trial.
The data from all three trials are consistent and show a significant clinical
benefit using Miraxion in patients with depression with melancholic
characteristics.  

On 12th January 2005, Amarin announced data from a monotherapy clinical trial
using Miraxion alone to treat depression patients.  The monotherapy trial
included 77 patients, of whom 39 patients were identified with melancholic
depression characteristics. In this group, statistical significance (p=<0.05)
was observed using the Bech scale (a sub-scale of HDRS) to measure affective
core symptoms of depression.  A third Phase IIa clinical trial with 70
treatment-unresponsive depression patients was also re-analyzed using identical
symptom-specific methodology identifying 28 melancholic depression patients.
Statistically significant data were again observed, using HDRS, from the
reanalysis of the dataset from this published (Peet and Horrobin, 2002, Archives
of General Psychiatry, volume 59, pages 913-919), randomized, placebo controlled
clinical trial in treatment-unresponsive depression, where Miraxion was used as
an adjunct therapy with standard depression treatments in a dose range from
1g - 4g per day. 

It is estimated that depressed patients who are unresponsive to standard
treatment and have melancholic depression symptoms may represent approximately
20-30% of all patients with depression.

Amarin filed a patent covering intellectual property related to the use of
Miraxion in treatment-unresponsive depression in late 2004.

Rick Stewart, Chief Executive Officer of Amarin commented, "The exploratory
analyses from three Phase IIa clinical trials have shown consistent positive
data in the treatment of depressed patients with melancholic characteristics.
The clinical benefits to patients with melancholic characteristics include
reduction in the affective core symptoms of depression, such as depressed mood
and guilt. There were no sexual dysfunction side effects, which are often
prevalent with standard depression treatments. This positive data allows us to
more accurately target patients with depression that may respond to Miraxion. We
are now planning an additional, larger confirmatory Phase II clinical trial and
we are seeking a development and marketing partner for Miraxion in depression."

About Amarin Corporation
Amarin Corporation plc is a neuroscience company focused on the research,
development and commercialization of novel drugs for the treatment of central
nervous system disorders. Miraxion, Amarin's lead development compound, is in
phase III development for Huntington's disease and in phase II development for
treatment-unresponsive depression.

For press releases and other corporate information, visit our website at
http://www.amarincorp.com.  

Statements in this press release that are not historical facts are forward-
looking statements that involve risks and uncertainties which may cause the
Company's actual results in future periods to be materially different from any
performance suggested herein.  Such risks and uncertainties include, without
limitation, the inherent uncertainty of pharmaceutical research, product
development and commercialization, the impact of competitive products and
patents, as well as other risks and uncertainties detailed from time to time in
periodic reports.  For more information, please refer to Amarin Corporation's
Annual Report for 2003 on Form 20-F and its Form 6-Ks as filed with the U.S.
Securities and Exchange Commission.  The Company assumes no obligation to update
information on its expectations.