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2015-12-08

Galapagos NV: Filgotinib meets primary endpoint in phase 2 study in patients with moderate to severe Crohn's disease

* First JAK-inhibitor to show efficacy in Crohn's disease
* 48% clinical remission rate, statistically significant versus placebo after
10 weeks induction therapy
* Significant improvements in clinical response and IBDQ quality of life
* Filgotinib safety profile similar to that previously observed

Webcast presentation of the results to be held tomorrow 8 December, 16.00
CET/10 AM EDT/7 AM PDT,
+1646 254 3373 access code4725658
more

call number info further down

Mechelen, Belgium; 7 December 2015 - Galapagos NV (Euronext&NASDAQ: GLPG)
announced today that 200 mg filgotinib is shown to be effective and safe as
once-daily, oral induction treatment in moderate to severe Crohn's disease,
based on the FITZROY phase 2 study at the 10-week interim analysis. The
study achieved the primary endpoint of clinical remission: the percentage of
patients achieving a CDAI score lower than 150 was significantly higher in
patients treated with filgotinib versus patients receiving placebo.
Filgotinib was shown to be well tolerated in the FITZROY study, strengthening
its favorable safety profile.

175 patients with moderate to severe Crohn's disease were enrolled in FITZROY,
a double-blind, placebo-controlled study. Patients recruited were either
anti-TNF naïve or anti-TNF failures. The full study has two parts of 10
weeks each: the first part - reported today - investigates the effect of
filgotinib 200mg once daily versus placebo as induction therapy. As the
study is still ongoing, individual data remain blinded. Galapagos expects to
report the full 20 week results for FITZROY in the first half of 2016.

Summary of clinical key endpoints after interim analysis at 10 weeks:

----------------------------------------------------------------------------------------------------------
| placebo filgotinib 200mg p-value |
| |
| n=44 n=128 |
| Clinical remission (CDAI lower than 150) (%), ITT-NRI 23 48 0.0067 |
| Clinical response, (CDAI decrease 100 points or more) (%), ITT-NRI 41 60 0.0386 |
| Total IBDQ score, mean change from baseline, ITT-LOCF 17.56 33.82 0.0045 |
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Overall, in the FITZROY study, filgotinib demonstrated a favorable safety
profile consistent with the previous DARWIN studies. Similar incidences in
SAEs and AEs were observed between filgotinib and placebo, with the majority
of the SAEs related to worsening of Crohn's disease. In the FITZROY study,
filgotinib showed a favorable lipid profile with an increase in HDL and no
change in LDL, resulting in an improved atherogenic index. An increase in
hemoglobin was also observed in FITZROY, without difference between
filgotinib and placebo. No clinically significant changes from baseline in
neutrophils or liver function tests were observed in this study.

"These data are robust and important because collectively they show that
patients who received filgotinib had higher rates of clinical remission and
their quality of life improved considerably. This was further accompanied by
a significant proportion of patients normalizing their CRP, an objective
biomarker of inflammation," commented principal investigator Dr Séverine
Vermeire, Department of Gastroenterology, University hospitals Leuven. "It is
also important to note that during the first 10 weeks of dosing no unexpected
safety findings emerged."

"The results of this study are exciting and show that with an oral treatment
and new mechanism of action we are able to induce a high rate of clinical
remission in moderate to severe Crohn's disease patients. Taken together with
a favorable safety profile, filgotinib has a good potential as future
treatment for IBD," added Dr William Sandborn, Chief, Division of
Gastroenterology, University of California San Diego School of Medicine.

"Filgotinib is the first JAK inhibitor to show efficacy in Crohn's disease, a
disease with still few treatment options today," said Piet Wigerinck, CSO of
Galapagos. "These favorable FITZROY study results complement the excellent
DARWIN data in rheumatoid arthritis and open up new opportunities in a
broader range of inflammatory diseases for filgotinib, our selective JAK-1
inhibitor."

"We are proud to bring innovative treatments to patients where high unmet
medical need exists. We intend to move this drug to Phase 3 as soon as
possible," said Onno van de Stolpe, CEO of Galapagos. "Once again, Galapagos
has demonstrated that its technology platform has the potential to deliver
safe and efficacious drugs which actually can modify the disease for
patients. Our pipeline is filling with later stage programs based on the
same approach we used to discover and develop filgotinib."

Conference call and webcast presentationGalapagos will conduct a conference call open to the public tomorrow, 8
December 2015, at 16:00 CET/10 AM EDT/8 AM PDT, which will also be webcasted.
To participate in the conference call, please call one of the following
numbers ten minutes prior to commencement:

---------------------------------
| Confirmation Code: 4725658 |
---------------------------------

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| United Kingdom: +44(0)20 3427 1928 |
| France: +33(0)1 76 77 22 40 |
| Toll free France: 0805 636 390 |
| Belgium: +32(0)2 400 1974 |
| Toll free Belgium: 0800 39271 |
| United States of America: +1646 254 3373 |
| Netherlands: +31(0)20 721 9157 |
| Toll free Netherlands: 8000 222 330 |
| Toll free United Kingdom: 0800 279 4849 |
| Toll free phone United States of America: 1855 217 7942 |
-------------------------------------------------------------------
A question and answer session will follow the presentation of the results. Go
to www.glpg.com to access the live audio webcast. The archived webcast, PDF
of the slides, and a transcript will also be available on the Galapagos
website later in the day.

About the study endpoints: CDAI, IBDQ

The Crohn's Disease Activity Index (CDAI) incorporates disease activity
indicators in the form of a patient diary. The composite CDAI score is
calculated based on 8 elements with various weightings: number of liquid or
soft stools each day for 7 days, abdominal pain each day for 7 days, general
well-being for 7 days, presence of complications, taking
diphenoxylate/atropine, loperamide, or opiates for diarrhea, presence of an
abdominal mass, hematocrit of lower than 0.47 in men and lower tha 0.42 in
women, and percentage deviation from standard weight. Clinical remission is
defined as CDAI score lower than 150, while clinical response involves a
decrease in CDAI of 100 points or more. Disease states are defined as mild:
150 to 220, moderate to severe: 220 to 450, and severe: more than 450
(adapted fromAGA Perspectives, Vol. 9 No. 2, April/May 2013).

The Inflammatory Bowel Disease Questionnaire (IBDQ) is a questionnaire for
health-related quality of life assessment in patients with inflammatory bowel
diseases: ulcerative colitis and Crohn's disease. It consists of 32
questions divided into four groups: bowel symptoms (10 items), systemic
symptoms (5 items), emotional function (12 items) and social function (5
items). Every question has graded responses from 1 to 7, and thus the total
score is ranging from 32 to 224 with higher scores representing better
quality of life. The IBDQ is a validated assessment tool that reflects
important changes in the quality of life of patients with IBD (adapted from
Pallis et al,Inflamm Bowel Dis, Volume 10, Number 3, May 2004).

About filgotinib

Filgotinib is a highly selective JAK1 inhibitor discovered and developed by
Galapagos using its target and drug discovery technology platform. In more
than 700 patient years of rheumatoid arthritis (RA) clinical study
experience, filgotinib has shown a rapid onset of action, potentially
best-in-class efficacy and to be safe and well tolerated in these studies.
The Company is preparing to initiate a Phase 3 program with filgotinib in
rheumatoid arthritis in the first half of 2016. Filgotinib is fully
proprietary to Galapagos.

About Crohn's disease

Crohn's disease (CD) is an inflammatory bowel disease causing chronic
inflammation of the gastrointestinal, or GI, tract with a relapsing and
remitting course. The prevalence estimates for CD in North America range
from 44 cases to 201 cases per 100,000 persons and in Europe, from 37.5 cases
to 238 cases per 100,000 persons. The disease is slightly more common in
women, with a peak incidence at the age of 20 to 40 years. The disease is
characterized by inflammation that may affect any part of the GI tract from
mouth to anus, but most commonly the distal small intestine and proximal
colon, causing a wide variety of symptoms including anemia, abdominal pain,
diarrhea, vomiting, and weight loss. The characteristic inflammatory response
of CD is focal transmural inflammation, frequently associated with granuloma
formation, which may evolve to progressive damage over time. Treatment of CD
will depend on severity of the disease. The main goal of treatment is to
stop the inflammation in the intestine, prevent flare-ups and keep patients'
disease in remission. While mild symptoms may respond to an antidiarrheal
medicine, antibiotics, and other medicines to control inflammation, severe
symptoms are often treated with anti-TNF agents. Anti-TNF agents, however,
do not work for all patients, and, in patients who do find therapeutic
benefit, they can lose their effect over time as a result of relapse.
Anti-TNF agents have also demonstrated side effects arising from long term
suppression of the immune system including increased rate of infections.
Unlike in RA, few biologics have been approved in CD and, as such, caregivers
have a more limited number of available treatments. The market for CD
therapies, across the 10 main healthcare markets, was approximately $3.2
billion in 2012 and is estimated to exceed $4.1 billion in 2022, according to
a January 2014 GlobalData PharmaPoint report, driven primarily by use of
anti-TNF agents.

About Galapagos

Galapagos(Euronext&NASDAQ: GLPG) is a clinical-stage biotechnology company
specialized in the discovery and development of small molecule medicines with
novel modes of action. Our pipeline comprises three phase 2, three phase 1,
five pre-clinical and 20 discovery studies in cystic fibrosis, inflammation,
fibrosis, osteoarthritis and other indications. We are focused on the
development and commercialization of novel medicines that will improve
people's lives. The Galapagos group, including fee-for-service
subsidiaryFidelta, has approximately 400 employees, operating from its
Mechelen, Belgium headquarters and facilities in The Netherlands, France, and
Croatia. More information atwww.glpg.com.

Contacts

Galapagos NV

Investors: Media:

Elizabeth Goodwin Evelyn Fox
VP IR&Corporate Communications Director Communications
+1 781 460 1784 +31 6 53 591 999
ir@glpg.com
communications@glpg.com

Galapagos forward-looking statements

This release may contain forward-looking statements, including, among other
things, statements regarding the mechanism of action and profile, and timing
of clinical trials and results, of filgotinib. Galapagos cautions the reader
that forward-looking statements are not guarantees of future performance. In
particular it should be noted that the positive interim results of the
FITZROY phase 2 trial with filgotinib in Crohn's disease may not be
indicative of future results. Forward-looking statements involve known and
unknown risks, uncertainties and other factors which might cause the actual
results, financial condition and liquidity, performance or achievements of
Galapagos, or industry results, to be materially different from any historic
or future results, financial conditions and liquidity, performance or
achievements expressed or implied by such forward-looking statements. In
addition, even if Galapagos' results, performance, financial condition and
liquidity, and the development of the industry in which it operates are
consistent with such forward-looking statements, they may not be predictive
of results or developments in future periods. Among the factors that may
result in differences are that Galapagos' expectations regarding its
filgotinib development program may be incorrect, the inherent uncertainties
associated with competitive developments, clinical trial and product
development activities and regulatory approval requirements (including that
data from Galapagos' ongoing clinical research programs may not support
registration or further development of its drug candidates due to safety,
efficacy or other reasons), Galapagos' reliance on collaborations with third
parties, and estimating the commercial potential of Galapagos' product
candidates. A further list and description of these risks, uncertainties and
other risks can be found in Galapagos' Securities and Exchange Commission
(SEC) filings and reports, including in Galapagos' prospectus filed with the
SEC on 14 May 2015 and future filings and reports filed by Galapagos with the
SEC. Given these uncertainties, the reader is advised not to place any undue
reliance on such forward-looking statements. These forward-looking
statements speak only as of the date of publication of this document.
Galapagos expressly disclaims any obligation to update any such
forward-looking statements in this document to reflect any change in its
expectations with regard thereto or any change in events, conditions or
circumstances on which any such statement is based or that may affect the
likelihood that actual results will differ from those set forth in the
forward-looking statements, unless specifically required by law or
regulation.

Filgotinib meets primairy endpoint in phase 2 study in Crohn's disease
http://hugin.info/133350/R/1972012/721188.pdf

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This announcement is distributed by NASDAQ OMX Corporate Solutions on behalf of NASDAQ OMX Corporate Solutions clients.
The issuer of this announcement warrants that they are solely responsible for the content, accuracy and originality of the information contained therein.
Source: Galapagos NV via Globenewswire

HUG#1972012

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