Patent 7615574 was granted and assigned to Council of Scientific and Industrial Research on November, 2009 by the United States Patent and Trademark Office.
The present invention provides a method of treating acute and chronic myeloid leukemia (AML & CML) and lymphoid leukemia, said method comprising administering a pharmaceutical composition comprising pharmaceutically effective amount of chlorogenic acid (CA) and 3-o-p-Coumaryl quinic acid (PCQ) isolated from any plant parts of Piper betel or any other source, both individually or in a synergistic combination optionally along with pharmaceutically acceptable additives.