How effective is targeted therapy for melanoma?

These medicines act on specific signals that help some melanoma cells grow. Testing the tumour can show whether a target is present, so treatment selection is based on biology rather than appearance alone. A response may mean tumours shrink, remain stable, or cause fewer symptoms. Some people respond quickly, while others need a different approach or a change in treatment if the melanoma begins growing again.

Effectiveness also depends on where the melanoma has spread, overall health, previous treatment and how well the medicine can be taken. Targeted therapy is different from chemotherapy and is not suitable for every melanoma.

Ask the oncology team whether molecular testing has identified a suitable target and what outcome they are aiming to measure. Discuss the planned scans, blood tests, likely treatment schedule and symptoms that should be reported promptly. Keep a written list of medicines and supplements, because interactions can matter.

Take treatment exactly as prescribed and do not stop it without advice. Report new fever, rash, severe diarrhoea, marked tiredness, breathlessness or changes in vision, since the team may need to assess these effects and adjust care.

Contact the oncology service urgently for a high fever, confusion, severe weakness, chest pain, trouble breathing, persistent vomiting, dehydration, or a rapidly worsening rash. New neurological symptoms, such as a seizure, sudden weakness or severe headache, need emergency assessment. These symptoms do not prove that treatment is failing, but they can signal a serious illness or treatment reaction.

Useful questions include: Does my melanoma have a target this treatment can act on? What response are my scans looking for? How will you monitor side effects? What are the alternatives if the melanoma grows or the treatment is not tolerated?