Depends on type. The most common chronic leukemia is chronic lymphocytic leukemia (cll). With initial treatment with the most aggressive treatments, such as fcr have a response rate of 95% and complete remission rate of 70%. Chronic myeloid leukemia (CML) has a 95% rate of complete cytogenetic response for chronic phase patients receiving initial therapy with the latest drugs.
More info needed. There are several types of chronic leukemia. Can you be more specific in what you would like to know?