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# Green tea compound slows progression of leukemia
- URL: https://www.foodconsumer.org/green_tea_leukemia_0706100846/
- Published: 2010-06-07T21:46:00.000Z
- Updated: 2026-09-22T15:54:23.000Z
- Description: A Mayo Clinic phase II trial in 42 patients found EGCG, a green tea compound, showed moderate clinical activity in stabilising chronic lymphocytic leukemia. An earlier phase I trial cut blood leukemia cells by about 20% in 30% of patients and halved swollen nodes in about 70%.
- Author: Food Consumer
- Tags: Phytochemicals, Nutrition, Green Tea, Leukemia, Egcg, #vivvo-import

One green tea compound may be used to treat chronic lymphocytic leukemia or CLL, which would not otherwise need any treatment until symptoms show up, according to a new study led by Tait Shanafelt, M.D. and colleagues at Mayo Clinic.

The phase II trial of 42 patients reported today June 7 at the annual meeting of the American Society of Clinical Oncology showed that epigallocatechin gallate or EGCG exhibited a moderate clinical activity in stabilizing the type of leukemia.

Mayo clinic researchers performed lab studies eight years ago on the anticancer effect of EGCG and found the compound can reduce the survival of CLL leukemia cells. 

The phase I trial showed that EGCG could reduce leukemia cells in the blood by about 20 percent in 30 percent of leukemia patients and shrink the enlarged lymph nodes by 50 percent in about 70 percent of the patients. The results were published in May 2009 in the Journal of Clinical Oncology.

DL