Do most people need more than one cancer treatment?

Most people with cancer have more than one treatment. In the National Cancer Institute's words, some people with cancer have only one treatment, but most have a combination, such as surgery with chemotherapy and radiation therapy.

The types you receive depend on the type of cancer you have and how advanced it is. That is why two people with the same diagnosis can end up with different plans.

Why one treatment is often not enough

Each treatment reaches a different place, and that is the whole logic of combining them.

Surgery removes what can be seen and reached. Radiation therapy treats a defined area with precision, including places a surgeon should not cut. Drug treatments travel through the bloodstream and can reach cells anywhere, including ones no scan has found. If cancer cells have left the original site, no operation can catch them, and something that circulates has to do that work.

The NCI lists ten treatment approaches in use: surgery, radiation therapy, chemotherapy, immunotherapy, targeted therapy, hormone therapy, stem cell transplant, hyperthermia, photodynamic therapy, and biomarker testing.

That last item may look out of place. Biomarker testing does not treat anything by itself. It is how the rest of the plan gets matched to your specific tumor, which is why it now sits alongside the treatments rather than behind them.

The order has names

Treatments are often stacked in sequence, and the sequence has a purpose.

Chemotherapy may be given to make a tumor smaller before surgery or radiation therapy. Given that way, it is called neoadjuvant treatment. It may also be given to destroy cancer cells that could remain after surgery or radiation, which is called adjuvant treatment. Both are common, and neither means anything went wrong.

Chemotherapy is usually given in cycles. A cycle is a period of treatment followed by a period of rest, so your body can recover and build new healthy cells. The rest week is part of the treatment, not a pause in it.

Ask what each part is for

Treatments can aim at different goals. The NCI describes chemotherapy being used to cure cancer, to lower the chance it comes back, to slow its growth, and to shrink tumors that are causing pain.

Those are not the same objective, and knowing which one applies to you changes how you weigh side effects. A treatment given for cure may be worth a hard few months. A treatment given to ease pain should be judged on whether you feel better.

What to ask for

Ask your team to walk you through the plan in order: what comes first, what comes next, roughly how long each part takes, and what result would change the plan.

Ask what each piece is meant to accomplish. Ask which doctor owns which part, since a combination plan usually means a surgeon, a medical oncologist, and a radiation oncologist all have a role, and it is easy to assume someone else is watching a problem.

Ask whether biomarker or genomic testing has been done on your tumor, and whether the results are back. Ask, too, whether your case has been discussed by the center's multidisciplinary team, where specialists review a plan together.