KemPharm Receives Clearance From FDA To Initiate Clinical Program For KP201/IR, A Single-Entity Benzhydrocodone HCl Immediate Release Abuse-Deterrent Prodrug For The Treatment Of Acute Pain

KP201/IR could be the first single entity (APAP-free), IR hydrocodone product for pain analgesia with abuse-deterrent properties

CORALVILLE, Iowa, Nov. 29, 2016 (GLOBE NEWSWIRE) -- KemPharm, Inc. (NASDAQ:KMPH), a clinical-stage specialty pharmaceutical company focused on the discovery and development of proprietary prodrugs, today announced that its Investigational New Drug (IND) application for KP201/IR has been accepted by the U.S. Food and Drug Administration (FDA). KP201/IR, KemPharm's co-lead product candidate, is a single-entity benzhydrocodone HCl immediate release abuse-deterrent prodrug for the treatment of acute pain.  KemPharm expects to conduct human clinical trials of KP201/IR in 2017.

"We are very pleased that the FDA has accepted our IND request for KP201/IR.  This, along with the recent acceptance of the IND and initiation of human clinical trials for KP415, our extended release d-threo-methylphenidate product candidate for the treatment of attention deficit hyperactivity disorder (ADHD), means that our two lead product candidates are meeting the early regulatory milestones we have established for them," said Travis Mickle, Ph.D., President and Chief Executive Officer of KemPharm.  "With this clearance, we intend to initiate human clinical trials of KP201/IR in the first half of 2017 and remain on target for a potential submission in 2018 of the KP201/IR New Drug Application (NDA)." 

KP201/IR has the potential to reach the market as the first abuse-deterrent IR hydrocodone product, as well as the first IR hydrocodone-related product without acetaminophen (APAP).  KemPharm believes KP201/IR is well-positioned to take advantage of data generated from the Apadaz™ development program, including data from the KP201.A03 study, which compared hydrocodone exposure following insufflation of benzhydrocodone HCl (KP201) vs. hydrocodone bitartrate.  KemPharm believes that the data observed in the KP201.A03 study, if replicated in a full human abuse potential study, may align with the FDA Division of Anesthesia, Analgesia, and Addiction Products criteria for achieving abuse-deterrent product labeling.

About KemPharm

KemPharm is a clinical-stage specialty pharmaceutical company focused on the discovery and development of proprietary prodrugs to treat serious medical conditions through its Ligand Activated Therapy (LAT) platform technology.  KemPharm utilizes its LAT platform technology to generate improved prodrug versions of FDA-approved drugs in the high need areas of pain, ADHD and other central nervous system (CNS) disorders. KemPharm's co-lead clinical development candidates are KP415, an extended-release (ER) prodrug of methylphenidate for the treatment of attention deficit hyperactivity disorder (ADHD), and KP201/IR, an acetaminophen (APAP)-free formulation of the company's immediate release (IR) abuse deterrent hydrocodone product, KP201.  For more information on KemPharm and its pipeline of prodrug product candidates visit

Caution Concerning Forward Looking StatementsThis press release may contain forward-looking statements made in reliance upon the safe harbor provisions of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended.  Forward-looking statements include all statements that do not relate solely to historical or current facts, and can be identified by the use of words such as "may," "will," "expect," "project," "estimate," "anticipate," "plan," "believe," "potential," "should," "continue" or the negative versions of those words or other comparable words. These forward-looking statements include statements regarding the expected features and characteristics of KP201/IR, the expected development timeline of KP201/IR and KP415, and potential submission of an NDA for KP201/IR.  These forward-looking statements are not guarantees of future actions or performance. These forward-looking statements are based on information currently available to KemPharm and its current plans or expectations, and are subject to a number of uncertainties and risks that could significantly affect current plans. Actual results and performance could differ materially from those projected in the forward-looking statements as a result of many factors, including, without limitation, the risks and uncertainties associated with: KemPharm's financial resources and whether they will be sufficient to meet KemPharm's business objectives and operational requirements; results of earlier studies and trials may not be predictive of future clinical trial results; the protection and market exclusivity provided by KemPharm's intellectual property; risks related to the drug discovery and the regulatory approval process; the impact of competitive products and technological changes; and the FDA approval process under the Section 505(b)(2) regulatory pathway, including without limitation any timelines for related approval. KemPharm's forward-looking statements also involve assumptions that, if they prove incorrect, would cause its results to differ materially from those expressed or implied by such forward-looking statements. These and other risks concerning KemPharm's business are described in additional detail in KemPharm's Quarterly Report on Form 10-Q for the quarter ended September 30, 2016, and KemPharm's other Periodic and Current Reports filed with the Securities and Exchange Commission.  KemPharm is under no obligation to (and expressly disclaims any such obligation to) update or alter its forward-looking statements, whether as a result of new information, future events or otherwise.

Investor Contacts:	Jason Rando / Joshua Drumm, Ph.D.Tiberend Strategic Advisors, Inc.212-375-2665 / 2664jrando@tiberend.comjdrumm@tiberend.comMedia Contact:Daniel L. CohenExecutive VP, Government and Public RelationsKemPharm,

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