RedHill Biopharma Submits New Drug Application
to U.S. FDA for RHB-103 Anti-Migraine Oral Thin
Tel-Aviv, Israel, March 27, 2013 - RedHill Biopharma Ltd. (NASDAQ: RDHL; TASE:
RDHL) (the “Company” or “RedHill”), an emerging Israeli biopharmaceutical company
focused primarily on the development and acquisition of late clinical-stage, patent-
protected, new formulations and combinations of existing drugs, today announced that
the Company and its co-development partner, IntelGenx Corp. (“IntelGenx”), have
submitted a New Drug Application (NDA) to the U.S. Food and Drug Administration
(FDA) seeking marketing approval of RHB-103, a proprietary, oral thin film formulation
of rizatriptan, a leading drug for the treatment of acute migraine.
The NDA was submitted under a 505(b)(2) regulatory path, following a positive pre-NDA
meeting with the FDA and is supported by a successful bioequivalence clinical trial that
demonstrated the required FDA criteria for therapeutic equivalence between the soluble
oral film of RHB-103 and Merck & Co.’s Maxalt MLT®.
RHB-103 is an oral thin film formulation of rizatriptan benzoate, a 5-HT1 agonist and the
active drug in Merck & Co.’s Maxalt® drugs. Rizatriptan is considered one of the most
effective oral triptans - a class of molecules that constrict blood vessels in the brain in
order to relieve swelling and other migraine symptoms. The worldwide market of triptans
was estimated at approximately $2.1 billion in 2011, of which the worldwide direct sales
of Merck & Co.’s rizatriptan-based drugs exceeded $600 million.
RHB-103 is based on IntelGenx' proprietary “VersaFilmTM” technology. The RHB-103
thin film strip dissolves rapidly in the mouth, leading to the absorption of the drug through
the gastro intestinal track and into the bloodstream.
1 2011 report by Business Insights 2 2012 annual report of Merck & Co., Inc.
"We are very pleased with the submission of the NDA for RHB-103. It is our first NDA
and an important milestone for RedHill and IntelGenx, as it brings us one step closer to
making this attractive thin film rizatriptan drug available for migraine patients in need"
Elkan Gamzu, RedHill’s RHB-103 Product Manager.
"RedHill’s RHB-103 oral thin film is characterized by rapid dissolution, ease of use, pleasant flavoring, and the ability to administer without water, all of which we believe are important for patients who suffer from migraines." RedHill further reported on February 25, 2013 of its plan to submit a second NDA in the fourth quarter of 2013, for the U.S. marketing approval of RHB-102, a patent protected, oral, extended-release (24 hours) formulation of ondansetron for the prevention of nausea and vomiting in cancer patients. The RHB-102 planned NDA submission follows a successful bioavailability trial, as well as a recent Type B meeting with the FDA. About RedHill Biopharma Ltd.:
RedHill Biopharma (NASDAQ: RDHL ; TASE: RDHL) is an emerging Israeli
biopharmaceutical company focused primarily on the development and acquisition of late
clinical-stage, patent protected, new formulations and combinations of existing drugs.
The Company's current product pipeline includes: (i) RHB-101 - a once-daily
formulation of a leading congestive heart failure and high blood pressure drug, planned to
be submitted for a Marketing Authorization Application (MAA) in Europe, (ii) RHB-102
- a once-daily formulation of a leading chemotherapy and radiotherapy-induced nausea
and vomiting prevention drug, planned for U.S. NDA submission in the fourth quarter of
2013, (iii) RHB-103 - an oral thin film formulation drug for the treatment of acute
migraine, with U.S. NDA submitted March 2013, (iv) RHB-104 - a combination therapy
for the treatment of Crohn's disease, planned to commence a first Phase III trial in the
second quarter of 2013, as well as Multiple Sclerosis (MS) Phase IIa proof of concept
trial planned to commence in the first quarter of 2013, (v) RHB-105 - a combination
therapy for the treatment of Helicobacter pylori bacteria causing ulcers, planned to
commence a phase II/III trial in the second quarter of 2013, and (vi) RHB-106 - an
encapsulated formulation for bowel preparation (laxative) ahead of colonoscopy. For
more information please vis

About IntelGenx:
IntelGenx is a drug delivery company focused on the development of oral controlled-
release products as well as novel rapidly disintegrating delivery systems. IntelGenx uses
its unique multiple layer delivery system to provide zero-order release of active drugs in
the gastrointestinal tract. IntelGenx has also developed novel delivery technologies for
the rapid delivery of pharmaceutically active substances in the oral cavity based on its
experience with rapidly disintegrating films. IntelGenx' development pipeline includes
products for the treatment of severe depression, hypertension, erectile dysfunction,
benign prostatic hyperplasia, migraine, insomnia, idiopathic pulmonary fibrosis, allergies
and pain management. More information is available about the company
This press release contains “forward-looking statements” within the meaning of the
Private Securities Litigation Reform Act of 1995. Such statements may be preceded by
the words “intends,” “may,” “will,” “plans,” “expects,” “anticipates,” “projects,”
“predicts,” “estimates,” “aims,” “believes,” “hopes,” “potential” or similar words.
Forward-looking statements are not guarantees of future performance, are based on
certain assumptions and the Company’s current and best understanding of the regulatory
status and are subject to various known and unknown risks and uncertainties, many of
which are beyond the Company’s control, and cannot be predicted or quantified and
consequently, actual results may differ materially from those expressed or implied by
such forward-looking statements. Such risks and uncertainties include, without limitation,
risks and uncertainties associated with (i) the initiation, timing, progress and results of
the Company’s preclinical studies, clinical trials, and other therapeutic candidate
development efforts; (ii) the Company’s ability to advance its therapeutic candidates into
clinical trials or to successfully complete its preclinical studies or clinical trials; (iii) the
extent and number of additional studies that the Company may be required to conduct
and the Company’s receipt of regulatory approvals for its therapeutic candidates, and
the timing of other regulatory filings and approvals; (iv) the clinical development,
commercialization, and market acceptance of the Company’s therapeutic candidates; (v)
the Company’s ability to establish and maintain corporate collaborations; (vi) the
interpretation of the properties and characteristics of the Company’s therapeutic
candidates and of the results obtained with its therapeutic candidates in preclinical
studies or clinical trials; (vii) the implementation of the Company’s business model,
strategic plans for its business and therapeutic candidates; (viii) the scope of protection
the Company is able to establish and maintain for intellectual property rights covering its
therapeutic candidates and its ability to operate its business without infringing the
intellectual property rights of others; (ix) estimates of the Company’s expenses, future
revenues capital requirements and the Company’s needs for additional financing; (x)
competitive companies, technologies and the Company’s industry; and (xi) statements as
to the impact of the political and security situation in Israel on the Company's business.
More detailed information about the Company and the risk factors that may affect the
realization of forward-looking statements is set forth in the Company's filings with the
Securities and Exchange Commission (SEC), including the Company's Annual Report on
From 20-F filed with the SEC on February 19, 2013, and its Reports on Form 6-K.
Investors and security holders are urged to read these documents free of charge on the
SEC's web site at All forward-looking statements included in this

Press Release are made only as of the date of this Press Release. We assume no obligation to update any written or oral forward-looking statement made by us or on our behalf as a result of new information, future events or other factors.
PR contact
Company contact:
Senior VP Business Development & Licensing


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