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Aptevo Reports Mipletamig Combination Therapy Enabled 21% of Frontline AML Patients to Advance to Potentially Curative Stem Cell Transplant

$APVOPress releaseOct 26, 2026, 8:05 AM ETRead the release

Aptevo reported that ten of 47 (21%) evaluable frontline AML patients treated with mipletamig plus venetoclax and azacitidine advanced to allogeneic stem cell transplant, a potentially curative option. By comparison, only 0.7% of patients receiving VEN+AZA alone underwent transplant in the pivotal Phase 3 VIALE-A trial, though cross-trial comparisons carry caveats around patient mix and design.

Key figures

Drug Name
mipletamig
Phase Of Trial
Phase 1b/2 (RAINIER)
Transplant rate
21%
Evaluable patients
47
Patients to transplant
10
Viale a transplant rate
0.7%

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