FDA accepts Outlook Therapeutics (NASDAQ: OTLK) dispute request on LYTENAVA
Rhea-AI Filing Summary
Outlook Therapeutics filed a report describing a key regulatory step for its retina drug candidate ONS-5010/LYTENAVA™ (bevacizumab‑vikg) in the United States. After receiving a Complete Response Letter from the FDA on December 30, 2025 for its Biologics License Application in neovascular age‑related macular degeneration, the company submitted a formal dispute resolution request. The FDA has accepted this request and granted a meeting with the deciding official in April 2026, giving the company an opportunity to argue that Phase 3 NORSE TWO and additional NORSE EIGHT data sufficiently support approval. The company notes that no safety concerns have been raised by the FDA and highlights that LYTENAVA already holds Marketing Authorizations in the EU and UK for wet AMD, where commercial launch has begun.
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Insights
FDA’s acceptance of the dispute review keeps the U.S. path for LYTENAVA open but does not guarantee approval.
The company is using a formal dispute resolution request to challenge aspects of the FDA’s December 30, 2025 Complete Response Letter for ONS‑5010/LYTENAVA™ in neovascular age‑related macular degeneration. The agency’s agreement to meet in April 2026 means senior officials will reconsider elements of the prior decision.
Management emphasizes NORSE TWO Phase 3 results and supporting NORSE EIGHT and other data, and notes that regulators have not raised safety concerns, framing the issue largely around efficacy and regulatory interpretation. However, the outcome of the dispute process is uncertain and could leave the program still needing additional work.
The product already has Marketing Authorizations in the EU and UK for wet AMD, with launch underway in Germany, Austria, and the UK. That international position may help validate the clinical package, but U.S. approval standards are independent, so investors must wait to see what comes from the April 2026 FDA meeting and any subsequent feedback.
8-K Event Classification
Key Figures
Key Terms
formal dispute resolution request regulatory
Complete Response Letter regulatory
Biologics License Application regulatory
Type A meeting regulatory
Marketing Authorization regulatory
vascular endothelial growth factor medical
UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM
CURRENT REPORT
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| Item 8.01 | Other Events. |
On April 7, 2026, Outlook Therapeutics, Inc. (the “Company”) issued a press release announcing that it submitted a formal dispute resolution request (FDRR) to the U.S. Food and Drug Administration (FDA) as a follow-up to its recent Type A meeting regarding the December 30, 2025 Complete Response Letter (CRL) for the Biologics License Application (BLA) for ONS-5010/LYTENAVA™ (bevacizumab) for the treatment of neovascular age-related macular degeneration, and that the FDA has accepted the FDRR and has granted a meeting with the deciding official to be conducted in April 2026.
The press release is attached as Exhibit 99.1 to this Current Report on Form 8-K and incorporated into this item 8.01 by reference.
| Item 9.01. | Financial Statements and Exhibits. |
(d) Exhibits
| Exhibit No. | Description | |
| 99.1 | Press Release, dated April 7, 2026 | |
| 104 | Cover Page Interactive Data File (embedded within the Inline XBRL document). | |
SIGNATURES
Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.
| Outlook Therapeutics, Inc. | ||
| Date: April 7, 2026 | By: | /s/ Lawrence A. Kenyon |
| Lawrence A. Kenyon | ||
| Chief Financial Officer | ||
Exhibit 99.1
Outlook Therapeutics Announces Formal Dispute Resolution Request for
ONS-5010/LYTENAVA™ (bevacizumab-vikg) Accepted by FDA
ISELIN, N.J., April 7, 2026 — Outlook Therapeutics, Inc. (Nasdaq: OTLK), a biopharmaceutical company focused on enhancing the standard of care for bevacizumab for the treatment of retina diseases, today announced that it submitted a formal dispute resolution request (FDRR) to the U.S. Food and Drug Administration (FDA) as a follow-up to its recent Type A meeting regarding the December 30, 2025 Complete Response Letter (CRL) for the Biologics License Application (BLA) for ONS-5010/LYTENAVA™ (bevacizumab-vikg) for the treatment of neovascular age-related macular degeneration. The FDA has accepted the FDRR and has granted a meeting with the deciding official to be conducted in April 2026.
Subsequent to receiving the CRL in December 2025, Outlook Therapeutics has engaged with the FDA on multiple occasions, including a formal Type A meeting on March 2, 2026, which led to the submission of the FDRR and associated meeting.
“We look forward to our discussions with the FDA and remain committed to our position that data on safety and efficacy for LYTENAVA demonstrated in NORSE TWO and NORSE EIGHT provide sufficient evidence to support approval and bring a much-needed FDA approved option for patients,” said Bob Jahr, Chief Executive Officer of Outlook Therapeutics.
The Company’s submission includes a comprehensive presentation of the existing clinical, functional, and pharmacodynamic data, and safety findings, which Outlook Therapeutics believes collectively support the efficacy and safety of ONS-5010/LYTENAVA™ for the treatment of neovascular age-related macular degeneration.
Outlook Therapeutics will continue to work collaboratively with the FDA throughout the formal dispute resolution process and will provide updates as appropriate.
ONS-5010/LYTENAVA™ demonstrated clinically meaningful and statistically significant improvements in visual acuity in the NORSE TWO randomized, double-masked, active-controlled Phase 3 trial, which met its primary and key secondary endpoints. Additional evidence from NORSE EIGHT and other data submitted in the BLA further support the efficacy and safety profile of ONS-5010, consistent with its anti-VEGF mechanism of action. No safety concerns have been raised by the FDA.
If approved, ONS-5010/LYTENAVA™ would be the first FDA-approved ophthalmic formulation of bevacizumab supported by standardized manufacturing, FDA-approved labeling, and robust pharmacovigilance.
The product candidate is supported by a fully domestic, end-to-end U.S. manufacturing supply chain.
About ONS-5010 / LYTENAVA™ (bevacizumab-vikg, bevacizumab gamma)
ONS-5010/LYTENAVA™ is an ophthalmic formulation of bevacizumab produced in the United States for the treatment of wet AMD. LYTENAVA™ (bevacizumab gamma) is the subject of a centralized Marketing Authorization granted by the European Commission in the EU and Marketing Authorization granted by the Medicines and Healthcare products Regulatory Agency (MHRA) in the UK for the treatment of wet AMD. In certain European Union Member States, ONS-5010/LYTENAVA™ must receive pricing and reimbursement approval before it can be sold.
In the United States, ONS-5010/LYTENAVA ™ (bevacizumab-vikg) is investigational. If approved, it has the potential to be the first ophthalmic formulation of bevacizumab-vikg approved by the FDA for use in ophthalmology.
Bevacizumab-vikg (bevacizumab gamma in the EU and UK) is a recombinant humanized monoclonal antibody (mAb) that selectively binds with high affinity to all isoforms of human vascular endothelial growth factor (VEGF) and neutralizes VEGF’s biologic activity through a steric blocking of the binding of VEGF to its receptors Flt-1 (VEGFR-1) and KDR (VEGFR-2) on the surface of endothelial cells. Following intravitreal injection, the binding of bevacizumab to VEGF prevents the interaction of VEGF with its receptors on the surface of endothelial cells, reducing endothelial cell proliferation, vascular leakage, and new blood vessel formation in the retina.
About Outlook Therapeutics, Inc.
Outlook Therapeutics is a biopharmaceutical company focused on the development and commercialization of ONS-5010/LYTENAVA™ (bevacizumab-vikg, bevacizumab gamma) to enhance the standard of care for bevacizumab for the treatment of retina diseases. LYTENAVA™ (bevacizumab gamma) is the first ophthalmic formulation of bevacizumab to receive European Commission and MHRA Marketing Authorization for the treatment of wet AMD. Outlook Therapeutics commenced commercial launch of LYTENAVA™ (bevacizumab gamma) in Germany, Austria, and the UK as a treatment for wet AMD.
In the United States, ONS-5010/LYTENAVA™ (bevacizumab-vikg) is investigational. If approved in the United States, ONS-5010/LYTENAVA™, would be the first approved ophthalmic formulation of bevacizumab for use in retinal indications, including wet AMD.
Forward-Looking Statements
This press release contains statements that may or are considered “forward-looking statements”. All statements other than statements of historical facts are “forward-looking statements,” including those relating to future events. In some cases, you can identify forward-looking statements by terminology such as “anticipate,” “believe,” “continue,” “expect,” “may,” “on track,” “plan,” “potential,” “target,” “will,” or “would”, the negative of terms like these or other comparable terminology, and other words or terms of similar meaning. These include, among others, plans for continued engagement with the FDA and the potential to agree on a regulatory pathway for ONS-5010, the potential of ONS-5010/LYTENAVA™ as a treatment for wet AMD, the potential for ONS-5010 to receive approval from the FDA, and other statements that are not historical fact. Although Outlook Therapeutics believes that it has a reasonable basis for the forward-looking statements contained herein, they are based on current expectations about future events affecting Outlook Therapeutics and are subject to risks, uncertainties, and factors relating to its operations and business environment, all of which are difficult to predict and many of which are beyond its control. These risk factors include those risks associated with developing and commercializing pharmaceutical product candidates, risks in obtaining necessary regulatory approvals, the content and timing of decisions by regulatory bodies, as well as those risks detailed in Outlook Therapeutics’ filings with the Securities and Exchange Commission (the SEC), including the Annual Report on Form 10-K for the fiscal year ended September 30, 2025, filed with the SEC on December 19, 2025, as supplemented by the Quarterly Report on Form 10-Q for the fiscal quarter ended December 31, 2025 and future reports Outlook Therapeutics files with the SEC, which include uncertainty of market conditions and future impacts related to macroeconomic factors, including as a result of the ongoing overseas conflicts, tariffs, and trade tensions, fluctuations in interest rates and inflation, and potential future bank failures on the global business environment. These risks may cause actual results to differ materially from those expressed or implied by forward-looking statements in this press release. All forward-looking statements included in this press release are expressly qualified in their entirety by the foregoing cautionary statements. You are cautioned not to place undue reliance on these forward-looking statements, which speak only as of the date hereof. Outlook Therapeutics does not undertake any obligation to update, amend or clarify these forward-looking statements whether as a result of new information, future events or otherwise, except as may be required under applicable securities law.
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