The present application relates to solid state forms of Lumateperone p-Tosylate and processes for preparation thereof. The present application provides amorphous Lumateperone p-tosylate and a solid dispersion comprising amorphous Lumateperone p- tosylate and one or more pharmaceutically acceptable polymers, their processes. The amorphous form and amorphous solid dispersions of the present application can be reproduced easily and is amenable for processing into a dosage form.
