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Otonomy Announces Successful End-of-Phase 2 Review by FDA for OTIPRIO® in Acute Otitis Media with Tympanostomy Tubes

SAN DIEGO, June 22, 2017 (GLOBE NEWSWIRE) -- Otonomy, Inc. (NASDAQ:OTIC), a biopharmaceutical company focused on the development and commercialization of innovative therapeutics for diseases and disorders of the ear, today announced that it it has successfully completed an End-of-Phase 2 review with the U.S. Food and Drug Administration (FDA) for OTIPRIO® (ciprofloxacin otic suspension) in the treatment of pediatric patients with acute otitis media with tympanostomy tubes (AOMT). Based on this feedback, Otonomy plans to conduct a single, sham controlled, Phase 3 trial enrolling approximately 200 pediatric patients with AOMT to support approval of OTIPRIO for this indication. The timing for initiation of this trial has not yet been determined.

“We are pleased with the outcome of our End-of-Phase 2 communication with the FDA including their acceptance of a single Phase 3 trial to support the registration of OTIPRIO for the treatment of AOMT,” said David A. Weber, Ph.D., president and CEO of Otonomy. “This feedback is consistent with our previous discussions regarding registration requirements for OTIPRIO in acute otitis externa (AOE) for which we recently submitted a supplemental New Drug Application (sNDA). We believe that, if approved for these indications, AOMT and AOE will more than double the U.S. market opportunity for OTIPRIO, and that OTIPRIO’s single-dose, physician-administered profile is distinct from the current standard of care which requires multi-dose, multi-day administration of ear drops.”

In October 2016, Otonomy announced the successful completion of a Phase 2 clinical trial that evaluated a single administration of OTIPRIO for the treatment of pediatric patients with AOMT. The one-month, prospective, randomized, sham-controlled, blinded Phase 2 clinical trial enrolled 95 pediatric patients with unilateral or bilateral AOMT at 12 centers in the United States. The trial demonstrated that both OTIPRIO doses evaluated, 6 mg (0.1 mL) and 12 mg (0.2 mL), were well-tolerated and achieved higher and statistically significant (p<0.05) clinical cure rates over sham (no treatment).

About Acute Otitis Media with Tympanostomy Tubes

According to the American Academy of OtolaryngologyHead and Neck Surgery Foundation (AAO-HNSF), tympanostomy tube placement (TTP) surgery is the most common ambulatory surgery performed on children. Overall, there are approximately one million TTP procedures performed each year in the United States of which 85% are in pediatric patients, who typically have middle ear effusion and receive tubes in both ears (bilateral). The tubes are placed for the treatment of persistent or recurrent otitis media (infection and/or inflammation of the middle ear) and can remain in place for a year or more. During this time, recurrent ear infections are common totaling approximately 900,000 cases of acute otitis media with tympanostomy tubes (AOMT) per year in the United States. Antibiotic ear drops are considered the standard of care treatment for AOMT with the typical regimen requiring several administrations each day for 7 days.

About OTIPRIO

OTIPRIO (ciprofloxacin otic suspension) is a fluoroquinolone antibacterial indicated for the treatment of pediatric patients with bilateral otitis media with effusion undergoing tympanostomy tube placement. OTIPRIO is administered by a physician as a single 0.1 mL (6 mg) intratympanic administration into each affected ear, following suctioning of the middle ear effusion. The thermosensitive suspension exists as a liquid at or below room temperature and gels when warmed. In two Phase 3 trials, a single intraoperative administration of OTIPRIO demonstrated a statistically significant reduction in the cumulative proportion of study treatment failures compared to tubes alone (p-value <0.001).

Important Safety Information for OTIPRIO

Contraindications: OTIPRIO is contraindicated in patients with a history of hypersensitivity to ciprofloxacin, to other quinolones, or to any of the components of OTIPRIO.

Warnings and Precautions - Potential for Microbial Overgrowth: OTIPRIO may result in overgrowth of nonsusceptible bacteria and fungi. If such infections occur, institute alternative therapy.

Adverse Reactions: Adverse reactions (incidence at least 3%) that occurred in two Phase 3 trials with OTIPRIO vs sham were: nasopharyngitis (5% vs 4%), irritability (5% vs 3%), and rhinorrhea (3% vs 2%).

Use in Specific Populations - Pediatric Use: The safety and effectiveness of OTIPRIO in infants below six months of age have not been established.

Full prescribing information can be found at www.OTIPRIO.com.

About Otonomy

Otonomy is a biopharmaceutical company focused on the development and commercialization of innovative therapeutics for diseases and disorders of the ear. OTIPRIO® (ciprofloxacin otic suspension) is approved in the United States for use during tympanostomy tube placement surgery in pediatric patients, an sNDA has been submitted to the FDA for acute otitis externa (AOE) and a successful Phase 2 trial has been completed in patients with acute otitis media with tympanostomy tubes (AOMT). OTIVIDEX™ (formerly OTO-104) is a steroid in development for the treatment of Ménière's disease and other balance and hearing disorders. Two Phase 3 trials in Ménière's disease patients are ongoing, AVERTS-1 in the United States and AVERTS-2 in Europe, with AVERTS-1 results expected in the third quarter of 2017 and AVERTS-2 results expected by the end of 2017. In addition, a Phase 2 trial of OTIVIDEX is underway in patients at risk for cisplatin-induced hearing loss. OTO-311 is an NMDA receptor antagonist for the treatment of tinnitus that has completed a Phase 1 clinical safety trial with a Phase 2 trial expected to be initiated in the second half of 2017. A fourth program targeting sensorineural hearing loss including age-related hearing loss is in preclinical development. Otonomy’s proprietary formulation technology utilizes a thermosensitive gel and drug microparticles to enable single dose treatment by a physician. For additional information please visit www.otonomy.com.

Cautionary Note Regarding Forward Looking Statements

This press release contains forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. Forward-looking statements generally relate to future events or the future financial or operating performance of Otonomy. Forward-looking statements in this press release include, but are not limited to, the timing of Phase 3 results for OTIVIDEX and the timing of a Phase 2 clinical trial for OTO-311. Otonomy's expectations regarding these matters may not materialize, and actual results in future periods are subject to risks and uncertainties. Actual results may differ materially from those indicated by these forward-looking statements as a result of these risks and uncertainties, including but not limited to: Otonomy's limited operating history and its expectation that it will incur significant losses for the foreseeable future; Otonomy's ability to obtain additional financing; Otonomy's dependence on the commercial success of OTIPRIO and the regulatory success and advancement of additional product candidates, such as OTIVIDEX and OTO-311, and label expansion indications for OTIPRIO; the uncertainties inherent in the clinical drug development process, including, without limitation, Otonomy's ability to adequately demonstrate the safety and efficacy of its product candidates, the nonclinical and clinical results for its product candidates, which may not support further development, and challenges related to patient enrollment in clinical trials; Otonomy's ability to obtain regulatory approval for its product candidates; side effects or adverse events associated with Otonomy's product candidates; competition in the biopharmaceutical industry; Otonomy's dependence on third parties to conduct nonclinical studies and clinical trials; the timing and outcome of hospital pharmacy and therapeutics reviews and other facility reviews; the impact of coverage and reimbursement decisions by third-party payors on the pricing and market acceptance of OTIPRIO; Otonomy's dependence on third parties for the manufacture of OTIPRIO and product candidates; Otonomy's dependence on a small number of suppliers for raw materials; Otonomy's ability to protect its intellectual property related to OTIPRIO and its product candidates in the United States and throughout the world; expectations regarding potential market size, opportunity and growth; Otonomy's ability to manage operating expenses; implementation of Otonomy's business model and strategic plans for its business, products and technology; and other risks. Information regarding the foregoing and additional risks may be found in the section entitled "Risk Factors" in Otonomy's Annual Report on Form 10-Q filed with the Securities and Exchange Commission (the "SEC") on May 4, 2017, and Otonomy's future reports to be filed with the SEC. The forward-looking statements in this press release are based on information available to Otonomy as of the date hereof. Otonomy disclaims any obligation to update any forward-looking statements, except as required by law.

Contacts:
Media Inquiries
Canale Communications
Heidi Chokeir, Ph.D.
Senior Vice President
619.849.5377
heidi@canalecomm.com

Investor Inquiries
Westwicke Partners
Robert H. Uhl
Managing Director
858.356.5932
robert.uhl@westwicke.com

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