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Outlook Therapeutics® Announces Complete Twelve Week Efficacy and Safety Results of NORSE EIGHT Clinical Trial

In This Article:

Outlook Therapeutics, Inc.
Outlook Therapeutics, Inc.
  • ONS-5010 demonstrated to be non-inferior to Lucentis at 12 weeks

  • BLA resubmission on track for calendar Q1 2025

  • Entered into agreements for warrant inducement transaction expected to result in up to $20.4 million in gross proceeds

ISELIN, N.J., Jan. 16, 2025 (GLOBE NEWSWIRE) -- Outlook Therapeutics, Inc. (Outlook Therapeutics, or the Company) (Nasdaq: OTLK), a biopharmaceutical company that achieved regulatory approval in the European Union and the United Kingdom for the first authorized use of an ophthalmic formulation of bevacizumab for the treatment of wet age-related macular degeneration (wet AMD), today announced it has completed the analysis of the complete 12-week safety and efficacy results for NORSE EIGHT, the second of two adequate and well controlled clinical trials evaluating ONS-5010 in wet AMD patients. ONS-5010 demonstrated noninferiority to ranibizumab at week 12 in the NORSE EIGHT trial. Based on the completed analysis of the 12-week results, Outlook Therapeutics plans to resubmit the Biologics License Application (BLA) for ONS-5010 in the first quarter of calendar 2025.

Julia A. Haller, MD, Ophthalmologist-in-Chief at Wills Eye Hospital and an Outlook Therapeutics Board member, commented, “The 3-month data from NORSE EIGHT provides additional evidence to confirm what retina specialists expected. The clinical trial continues to demonstrate that ONS-5010 injections result in immediate and sustained anatomic efficacy, with steady gains in visual acuity and reliable, consistent safety.”

The difference in the mean between ONS-5010 and ranibizumab was -1.009 best corrected visual acuity (BCVA) letters with a 95% confidence interval of (-2.865, 0.848) in the NORSE EIGHT trial. Applying the statistical parameters from the week 8 primary endpoint with the lower bound of the non-inferiority margin at -3.5 with a 95% confidence interval, the noninferiority margin was met at week 12 (p=0.0043), indicating that the two study arms are not different at this timepoint. In the intent-to-treat (ITT) population, NORSE EIGHT demonstrated a mean 5.5 letter improvement in BCVA in the ONS-5010 arm and 6.5 letter improvement in BCVA in the ranibizumab arm.

 

Mean change in BCVA at week 12

Non-Inferiority

ONS-5010 1.25 mg

+5.5 letters

95%CI: (-2.865, 0.848)
P-value: 0.0043

 

 

 

Ranibizumab 0.5mg

+6.5 letters


Additionally, the change in central retinal thickness, a measure of anatomical response, was similar in both study arms at all three study timepoints.

Mean change in central retinal thickness

 

Week 4

Week 8

Week 12

ONS-5010 1.25 mg

-106.6 microns

-117.7 microns

-123.9 microns

Ranibizumab 0.5mg

-108.4 microns

-120.9 microns

-127.3microns


As previously announced, in the NORSE EIGHT trial, ONS-5010 did not meet the pre-specified non-inferiority endpoint at week 8 set forth in the special protocol assessment (SPA) with the U.S. Food and Drug Administration (FDA). However, BCVA data across all study timepoints demonstrated an improvement in vision, increasing over time, and the presence of biologic activity. Overall, in NORSE EIGHT, ONS-5010 demonstrated mean visual acuity improvements of +3.3 letters at week 4, +4.2 letters at week 8, and +5.5 letters at week 12.