SEC Filings

KERYX BIOPHARMACEUTICALS INC filed this Form 424B5 on 07/27/2017
Entire Document

Table of Contents

online in the Journal of the American Society of Nephrology in January 2017. We submitted a supplemental new drug application, or sNDA, to the U.S. Food and Drug Administration, or FDA, in January 2017 seeking to expand the label for Auryxia to include the treatment of IDA in NDD-CKD patients, which was accepted by the FDA for review in March 2017. A Prescription Drug User Fee Act, or PDUFA, target action date for the FDA’s review of this sNDA was set for November 6, 2017, and, if approved, we could potentially make the medicine available to these patients immediately thereafter. We estimate that in the United States, approximately 1.7 million adults under the care of a nephrologist have IDA, NDD-CKD, including approximately 650,000 adults currently being treated by nephrologists for IDA. IDA is common in the NDD-CKD population and the prevalence and severity increases as CKD advances. IDA is symptomatic and can significantly impact quality of life. There is significant literature that correlates anemia with increased risk of heart disease and death. No oral iron medications are currently FDA-approved to treat IDA, NDD-CKD.

Expand Our Portfolio

We will evaluate opportunities to expand our product portfolio with other medicines that can help patients with kidney disease. Our business development activities include evaluating several clinical-drug candidates and commercial medicines to in-license or acquire to add to our portfolio and provide us with new commercial opportunities. We will seek to add assets that leverage the infrastructure we have built to support our foundational medicine, Auryxia, including our clinical development and commercial teams. We believe these efforts have the potential to provide additional revenues to us in the future.

Manage Growth and Talent

We are committed to creating a culture of success and continue to engage a work force of high-quality and talented people to support our potential growth.

Ferric Citrate in Japan (Riona) and Europe (Fexeric)

Our Japanese partner, JT and Torii, received manufacturing and marketing approval of ferric citrate from the Japanese Ministry of Health, Labour and Welfare as an oral treatment for the improvement of hyperphosphatemia in patients with CKD, including dialysis and NDD-CKD, in January 2014. Torii began to market the product under the brand name Riona in May 2014. Under the license agreement with JT and Torii, we receive royalty payments based on a tiered double-digit percentage of net sales of Riona in Japan escalating up to the mid-teens, as well as up to an additional $55.0 million upon the achievement of certain annual net sales milestones. We in turn owe royalties at a mid-single digit percentage of net sales to the licensor of ferric citrate associated with net sales of Riona in Japan.

On September 23, 2015, the European Commission, or EC, approved Fexeric (ferric citrate coordination complex) for the control of elevated serum phosphorus levels, or hyperphosphatemia, in adult patients with CKD, including dialysis and NDD-CKD. We are currently seeking potential partners to commercialize Fexeric in the European Union.

Additional Information

We were incorporated in Delaware in October 1998 and commenced operations in November 1999. In January 2016, we moved our executive offices to One Marina Park Drive, 12th Floor, Boston, Massachusetts 02210. Our telephone number is (617) 466-3500. Our website address is The information contained on our website is not incorporated by reference into, and does not form any part of, this prospectus supplement or the accompanying prospectus. We have included our website address as a factual reference and do not intend it to be an active link to our website. Our Annual Reports on Form 10-K, Quarterly Reports on Form 10-Q, Current Reports on Form 8-K, and all amendments to those reports, are available free of charge through the “Investors—SEC Filings and Annual Reports” section of our website as soon as reasonably practicable after such materials have been electronically filed with, or furnished to, the SEC.