Hairy cell leukemia Update on diagnosis, risk‐stratification, and treatment - Treatments for hairy cell leukemia Like 75.98% | 108 votes Views: 682 739 Download Biologic therapy. A clinical trial of. Categories: Dig Comments: Add Comment Cancel By Mikashakar - 02:26 This slow-growing cancer doesn't always need immediate treatment. Learn how doctors decide to start chemotherapy and biological therapy. By Yozshusar - 16:02 Hairy cell leukemia treatment options include watchful waiting when there are no symptoms, chemotherapy, biologic therapy, surgery, and. By Munos - 18:38 Hairy cell leukemia (HCL) tends to be slow growing. Treatment may be advised for HCL patients with low blood cell counts, recurrent infections, or an enlarged spleen or lymph nodes. Like chronic lymphocytic leukemia, HCL can cause problems with low blood counts and infections.