Analyst Emily Bodnar of H.C. Wainwright maintained a Buy rating on Atossa Therapeutics, retaining the price target of $7.00.
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Emily Bodnar’s rating is based on the promising clinical trial results of Atossa Therapeutics’ Z-endoxifen, which demonstrated superior efficacy compared to tamoxifen in treating ER+/HER2- metastatic breast cancer (mBC). The Phase 2 study highlighted that patients treated with Z-endoxifen had a significantly longer median progression-free survival (PFS) compared to those on tamoxifen, particularly in CDK4/6 inhibitor-naive patients and those with ESR1 mutations.
Additionally, early results from the RECAST DCIS trial suggest that Z-endoxifen, combined with MRI monitoring, could be a feasible alternative to surgery for ductal carcinoma in situ (DCIS), as it showed no severe adverse effects and maintained patient engagement in active surveillance. These findings indicate a potential for Z-endoxifen to address unmet needs in breast cancer treatment, supporting the Buy rating as further updates and regulatory clearances are anticipated.

