Silverback Therapeutics Inc. filed SEC Form 8-K: Other Events
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| Item 8.01 | Other Events. |
On September 19, 2023, ARS Pharmaceuticals, Inc. (the “Company”) announced the receipt of a Complete Response Letter (“CRL”) from the U.S. Food and Drug Administration (the “FDA”) regarding the Company’s New Drug Application (“NDA”) for neffy (epinephrine nasal spray) in the treatment of allergic reactions (Type 1), including anaphylaxis for adults and children ≥30 kg. The Company plans to submit a Formal Dispute Resolution Request to appeal the issuance of the CRL.
In the CRL, the FDA requested completion of a pharmacokinetic/pharmacodynamic study assessing repeat doses of neffy compared to repeat doses of an epinephrine injection product under allergen-induced allergic rhinitis conditions to support approval. This request comes after the recommendation of the FDA Advisory Committee (PADAC) in May 2023 to approve neffy without the need for additional studies to demonstrate its efficacy or safety. Further, the FDA and the Company previously aligned in August 2023 on final physician’s labeling and a post-marketing requirement to conduct this study as informative for labeling.
The PADAC meeting was held on May 11, 2023, and concluded a favorable benefit-risk profile of neffy, with a 16:6 vote in favor for adults and 17:5 vote in favor for children (≥30 kg) for the treatment of patients with allergic reactions (Type I), including anaphylaxis. In that session, no member of the PADAC raised specific concerns about the result of the completed study in people with allergen-induced acute rhinitis with single-dose neffy, which showed enhanced absorption during the time period when a clinical response would be expected.
The Company previously agreed with FDA to conduct a repeat-dose study under allergen-induced allergic rhinitis conditions as a post-marketing commitment, and anticipates a resubmission to the FDA in the first half of 2024, positioning the Company for an anticipated FDA action date in the second half of 2024.
The CRL requested additional information on nitrosamine impurities to be tested for based on new draft guidance issued after the neffy NDA submission. The Company does not believe the additional testing would be a rate-limiting step for the resubmission to the FDA.
Forward-Looking Statements
Statements in this report that are not purely historical in nature are “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995. These statements include, but are not limited to, the Company’s ability to complete the newly required trial and provide the additional information requested by the FDA in the CRL on the timing anticipated, or at all; the timing for the anticipated FDA action date; the potential approval of neffy; the Company’s belief that additional testing for nitrosamine impurities based on new draft guidance issued after the Company’s NDA submission will not be a rate-limiting step for the resubmission to the FDA; and other statements that are not historical fact. Because such statements are subject to risks and uncertainties, actual results may differ materially from those expressed or implied by such forward-looking statements. Words such as “anticipate,” “plans,” “expects,” “will,” “potential” and similar expressions are intended to identify forward-looking statements. These forward-looking statements are based upon the Company’s current expectations and involve assumptions that may never materialize or may prove to be incorrect. Actual results and the timing of events could differ materially from those anticipated in such forward-looking statements as a result of various risks and uncertainties, which include, without limitation, the ability to obtain and maintain regulatory approval for neffy; the ability to successfully complete the newly requested trial on the timeframe anticipated, or at all, as a result of challenges inherent to enrolling, conducting and completing clinical trials; the results of the new clinical trial may not support the approval of neffy; results from clinical trials may not be indicative of results that may be observed in the future; potential safety and other complications from neffy; the labelling for neffy, if approved; the scope, progress and expansion of developing and commercializing neffy; the size and growth of the market therefor and the rate and degree of market acceptance thereof vis-à-vis intramuscular injectable products; the Company’s ability to protect its intellectual property position; and the impact of government laws and regulations. Additional risks and uncertainties that could cause actual outcomes and results to differ materially from those contemplated by the forward-looking statements are included under the caption “Risk Factors” in ARS’s Quarterly Report on Form 10-Q for the quarter ended June 30, 2023, filed with the Securities and Exchange Commission on August 10, 2023.
SIGNATURES
Pursuant to the requirements of the Securities Exchange Act of 1934, as amended, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.
| ARS PHARMACEUTICALS, INC. | ||||||
| Date: September 20, 2023 | By: | /s/ Richard Lowenthal | ||||
| Richard Lowenthal, M.S., MBA | ||||||
| President and Chief Executive Officer | ||||||