Aging With Cancer & Geriatric Oncology

Most people diagnosed with cancer in the United States are older adults, yet age alone says very little about how someone will handle treatment. Two people in their late seventies can be in entirely different positions: one still driving, gardening and living alone, the other managing heart failure, diabetes and a walker. Geriatric oncology is the part of cancer care built around that difference. It asks not how old someone is, but what their body and their life can absorb.

The goal is not automatically gentler treatment. It is treatment matched to the person, which sometimes means full-strength therapy and sometimes means a modified plan.

A geriatric assessment is a structured review that goes well beyond the usual oncology workup. It is largely questionnaire-based, and much of it can be completed by the patient or a family member before the visit.

The American Society of Clinical Oncology updated its geriatric oncology guideline in 2023, recommending that management be guided by a geriatric assessment in patients with cancer aged 65 and older who have impairments identified by that assessment. The guideline describes assessment across domains including physical and cognitive function, other medical conditions, emotional health, nutrition, polypharmacy and social support, and it extended the earlier recommendation beyond chemotherapy to include targeted therapy and immunotherapy.

Those domains matter because they predict problems better than a doctor's impression across a desk. Whether someone can climb stairs, has fallen in the past six months, is losing weight, or has anyone at home to call at 2am tells you more about how they will tolerate treatment than their birth year does.

If your cancer center does not offer one, it is reasonable to ask whether a geriatric assessment or a referral to a geriatrician is available.

Many older adults arrive at oncology already taking a long list of medications, prescribed by different clinicians over many years, plus supplements nobody has reviewed. Cancer drugs are added on top of that.

Interactions are common and often preventable. Some supplements interfere with cancer treatment. Some long-standing prescriptions are no longer serving a purpose. An oncology pharmacist is usually the best person to sort this out, and most cancer centers have one.

Practical steps that help:

• Bring every bottle to the first appointment — prescriptions, over-the-counter medicines, vitamins and herbal supplements — rather than a list from memory.
• Ask specifically for a pharmacist medication review before treatment starts.
• Ask which of your existing medications could be stopped or reduced during treatment, and which must not be.
• Keep one written list, updated after every appointment, and give a copy to whoever might take you to an emergency room.
• Ask which side effects mean calling the team straight away rather than waiting for the next visit.

For many older adults the real question is not survival in the abstract but whether they will still be able to live at home, drive, and manage without becoming dependent. That is a legitimate thing to say out loud in a treatment discussion, and a good oncologist will treat it as clinical information rather than sentiment.

Worth asking: how many appointments per week will this involve, and for how long? What is the chance this treatment lands me in the hospital? Will I still be able to drive? What happens to my strength, and can physical therapy be part of the plan? Our list of questions to ask before treatment begins is a useful starting point to adapt.

Survival figures deserve care here. Statistics drawn from clinical trial populations often come from patients younger and fitter than the person in the room, and competing health conditions change the picture considerably. Our explanation of what a five-year survival rate actually means may help when those numbers come up.

Care for an older adult with cancer often lands on a spouse who has their own health problems, or an adult child managing it from another state. That arrangement strains quickly. Palliative care can be brought in alongside active treatment to manage symptoms and coordinate, and it is not the same as stopping treatment. Our page on caregiver burnout is written for the people doing the driving and the pill sorting.

Growing older with cancer means holding two things at once: cancer is serious, and it is not the only thing that will shape the coming years. Good geriatric oncology keeps both in view rather than pretending either one away.