Regimes for co-administration of immunotherapeutic agents against c-kit and cd47
AssigneeForty Seven, Inc.
InventorsCraig Gibbs, Jens-Peter Volkmer, Irving L. Weissman, Kristopher Marjon
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AssigneeForty Seven, Inc.
InventorsCraig Gibbs, Jens-Peter Volkmer, Irving L. Weissman, Kristopher Marjon
Estimating the term…
The invention provides co-administration regimes of immunotherapeutic agents specifically binding to c-kit or inhibiting CD47-SIRPα for ablation of endogenous HSPCs. Relatively low levels of anti-c-kit result in saturation of binding to c-kit on HSPCs without significant reduction of the levels HSPCs. Significant reduction of the level of HSPCs can be obtained when the action of anti-c-kit is promoted by an immunotherapeutic agent inhibiting CD47-SIRPα. HSPCs expressing c-kit can thus be reduced to an acceptable level an acceptable level to permit introduction of replacement HSPCs without detrimental delay during which a subject has inadequate HSPCs.
A method of ablating hematopoietic stem and progenitor cells (HSPCs) in a patient in need thereof, comprising administering to the patient 0.15-2 mg/kg of an immunotherapeutic agent specifically binding to c-kit and an effective regime of an immunotherapeutic agent specifically binding to CD47 or SIRPα, wherein HSPCs are ablated in the patient.
21-27. (canceled)
45-47 (canceled)
Dependencies are inferred from the claim text.