-The IND for AK-OTOF is the first to receive FDA clearance for a genetic form of hearing loss and the first for an AAV vector therapy with the potential to treat an inner ear condition
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-Based on auditory brainstem response data from nonclinical studies, a one-time administration of AK-OTOF has the potential to deliver durable restoration of auditory function
“The AK-OTOF IND clearance from FDA is an important step toward achieving our mission of making healthy hearing available to all,” said
“We are excited to advance AK-OTOF into clinical development. There is a significant unmet need in OTOF-mediated hearing loss, as individuals typically have Severe to Profound sensorineural hearing loss from birth, and there are currently no approved pharmacologic options,” said
OTOF-mediated hearing loss is a form of sensorineural hearing loss caused by mutations in the otoferlin gene, which encodes otoferlin, a protein that enables the inner hair cells of the cochlea to release neurotransmitter vesicles in response to stimulation by sound to activate auditory neurons. Individuals with OTOF-mediated hearing loss have bilateral hearing loss that is typically Severe to Profound and congenital, exhibiting absent or highly abnormal auditory brainstem response (ABR) from birth. Approximately 20,000 individuals are affected in
AK-OTOF is a dual adeno-associated viral (AAV) vector-based gene therapy intended to treat patients with OTOF-mediated hearing loss by delivering transgenes encoding OTOF to the inner hair cells (IHCs) of the cochlea. A one-time, unilateral intracochlear administration of AK-OTOF is intended to result in the expression of normal full-length functional otoferlin protein in the IHCs, which has the potential to lead to recovery of auditory function.
The advancement of AK-OTOF into clinical development is supported by nonclinical data demonstrating administration of AK-OTOF in Otof knockout mice results in durable expression of human otoferlin protein sufficient for sustained restoration of auditory function, as assessed by translationally relevant ABR assessments. In both mice and non-human primates, AK-OTOF was systemically and locally well tolerated, and no adverse effects were observed in clinical pathology, otic pathology, systemic histopathology, or auditory or cochlear function.
The Phase 1/2 clinical trial is designed to evaluate the safety and tolerability of escalating doses of AK-OTOF administered unilaterally to trial participants with OTOF-mediated hearing loss; it is also designed to assess efficacy through clinical measures such as ABR, which is an objective, clinically accepted endpoint. Given both the early onset of serious manifestations, as well as the need for timely intervention due to anatomical considerations and developmental considerations, eligible participants for the clinical trial will be pediatric. Based on interactions with FDA during the 30-day IND review period, the Company expects the first two participants will be as young as seven years of age, and that subsequent participants will be as young as two years of age at the time of administration.
The Company plans to provide an update on clinical trial initiation activities for AK-OTOF later this year.
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Statements in this press release about future expectations, plans and prospects, as well as any other statements regarding matters that are not historical facts, may constitute “forward-looking statements” within the meaning of The Private Securities Litigation Reform Act of 1995. These statements include, but are not limited to, statements relating to the initiation, plans, timing of our future clinical trials for AK-OTOF, and the potential benefit of AK-OTOF. The words “anticipate,” “believe,” “contemplate,” “continue,” “could,” “estimate,” “expect,” “intend,” “might,” “may,” “plan,” “potential,” “predict,” “project,” “should,” “target,” “will,” “would,” and similar expressions are intended to identify forward-looking statements, although not all forward-looking statements contain these identifying words. Actual results may differ materially from those indicated by such forward-looking statements as a result of various important factors, including: our limited operating history; uncertainties inherent in the development of product candidates, including the initiation and completion of nonclinical studies and clinical trials; whether results from nonclinical studies will be predictive of results or success of clinical trials; the timing of and our ability to submit applications for, and obtain and maintain regulatory approvals for, our product candidates; our expectations regarding our regulatory strategy; our ability to fund our operating expenses and capital expenditure requirements with our cash, cash equivalents, and marketable securities; the potential advantages of our product candidates; the rate and degree of market acceptance and clinical utility of our product candidates; our estimates regarding the potential addressable patient population for our product candidates; our commercialization, marketing, and manufacturing capabilities and strategy; our ability to obtain and maintain intellectual property protection for our product candidates; our ability to identify additional products, product candidates, or technologies with significant commercial potential that are consistent with our commercial objectives; the impact of government laws and regulations and any changes in such laws and regulations; risks related to competitive programs; the potential that our internal manufacturing capabilities and/or external manufacturing supply may experience delays; the impact of the COVID-19 pandemic on our business, results of operations, and financial condition; our ability to maintain and establish collaborations or obtain additional funding; and other factors discussed in the “Risk Factors” included in the Company’s Quarterly Report on Form 10-Q for the quarter ended
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