Clinical Benefit UncertaintyA subcutaneous filing that relies on demonstrating plaque removal rather than direct cognitive benefit raises concern that measurable clinical improvement may be delayed if high initial drug exposure is needed to saturate plaque.
Program Maturity And Commercial TimelineNext-generation antibody programs remain early stage and are unlikely to contribute to the company's first marketed product, limiting near-term commercial impact.
Safety Profile And Brain Swelling RiskThe subcutaneous formulation does not appear to reduce the main brain swelling risk compared with intravenous dosing, which could constrain any improvement in the overall risk–benefit profile.