What to expect from targeted therapy for chronic lymphocytic leukaemia

These medicines block signals that help abnormal B lymphocytes survive or multiply. The choice can depend on your blood counts, symptoms, other health conditions, previous treatment and interactions with medicines you already take. Some targeted treatments are tablets taken at home, while others may be combined with an antibody infusion.

Early monitoring matters. Blood counts can change as leukaemia cells respond, and your team may check kidney or liver function, heart rhythm, blood pressure or signs of infection. Possible effects include bruising, diarrhoea, nausea, fatigue, headache, rash or changes in blood counts. Your prescribed schedule may include a gradual dose increase or planned breaks.

Take each dose at the same time and follow instructions about food. Do not crush, share or replace tablets, and check before starting antibiotics, herbal products or other new medicines. Keep appointments for blood tests and tell the team about missed doses rather than doubling the next dose.

Use sensible infection precautions advised by your team, drink fluids if permitted, and record symptoms in a simple diary. Report bruising, bleeding, loose stools, dizziness, palpitations or a new cough so the cause can be assessed.

Call your treatment team urgently for fever, chills, persistent vomiting, severe diarrhoea, unusual bleeding, black stools, marked breathlessness, fainting or a racing or irregular heartbeat. Emergency care is needed for chest pain, severe difficulty breathing, sudden weakness on one side, or swelling of the face or throat.

Ask which target your medicine acts on, how long each phase of treatment lasts, which medicines and foods may interact, how infection risk will be monitored, and what symptoms should lead to an urgent call.