Breast and Prostate cancer review

If your grandparents or older family members are diagnosed with breast or prostate cancer, you might wonder:

 “Can they have radiotherapy, and will they tolerate it?”

The good news is: yes, most older patients can have radiotherapy, and they usually handle it well.

A key point in modern cancer care is that treatment decisions are not based on age alone. The most crucial factor is a thorough assessment of the person’s overall health.

The key principle: frailty matters more than age

Today, doctors do not decide on radiotherapy based solely on age.

The foundation of good decision-making is screening for frailty and comorbidities.

This means examining:

• physical strength and independence (frailty)
• other medical conditions (like heart disease and diabetes)
• daily functioning and resilience

Two people of the same age can be very different:

• a healthy, active 80-year-old may tolerate treatment well
• a frail 70-year-old with multiple illnesses may require a gentler approach

So, it’s overall health and vulnerability that guide decisions, not age itself.

Why this matters

Radiotherapy today is designed to be:

• precise
• personalized
• adaptable to patient needs

Treatment decisions rely on frailty assessment, comorbidity evaluation, and functional status rather than just age.

Breast cancer and radiotherapy in older adults

A large review of studies on older women receiving breast radiotherapy shows:

Toxicity rates:

• Severe acute toxicity (very strong skin reaction, significant swelling or discomfort in the breast area, symptoms strong enough to require medical treatment or treatment break): 0% to ~10%

• Severe late toxicity (significant hardening or thickening of breast tissue, long-term changes in skin or breast shape that cause discomfortpersistent pain or functional impact requiring medical care): 0% to ~13%

• Treatment interruptions: very rare (0–2%)

These findings show that serious side effects are uncommon, even in older patients.

Older vs younger patients

Across studies:

• No consistent increase in toxicity in older patients
• In many cases, outcomes are similar to younger patients
• When differences occur, they relate to frailty and comorbidities, not age

This reinforces the message biological health matters more than chronological age.

Prostate cancer and radiotherapy in older adults

Evidence from studies on prostate cancer radiotherapy shows:

Typical toxicity rates:

• Urinary symptoms (more frequent urination, urgency, or mild discomfort): 10% to 40%, but usually mild to moderate and temporary

• Bowel symptoms (looser stools or irritation): 5% to 30%, also usually mild and temporary

• Severe side effects (more serious problems): 0% to 10%, rare in modern radiotherapy

• Long-term serious side effects: uncommon

Older vs younger patients

When comparing older and younger men:

• Side effects are generally similar in both groups
• Some studies show slightly more urinary symptoms in older patients
• However, when overall health is considered, age itself is not the main factor
• Differences are mainly explained by frailty other medical conditions treatment type.

What families should understand

• Age alone does NOT determine eligibility for radiotherapy.
• Most older patients tolerate treatment well.
• Serious toxicity is uncommon.
• A proper health and frailty assessment is crucial.
• Treatments can often be adjusted to improve comfort and safety.

Radiotherapy is not automatically “too strong” for older people.

If you are caring for an older relative facing radiotherapy, feel free to ask the treating team:

– “Has a frailty and overall health assessment been done?”

– “How can the treatment be adapted to their individual condition?”

– “What side effects should we realistically expect in their case?”

Early discussions help ensure that treatment decisions are personalized, safe, and aligned with quality of life. You are an important part of this conversation, and your questions can greatly impact care planning.

Glossary

Radiotherapy – A cancer treatment that uses controlled radiation (like high-energy X-rays) to destroy cancer cells.

Toxicity – Side effects caused by treatment. These can be mild (like tiredness) or more serious, but most are manageable.

Acute toxicity – Side effects that happen during treatment or shortly after it starts.

Late toxicity – Side effects that appear months or even years after treatment.

Frailty – A measure of how physically strong and resilient a person is. It includes strength, energy, independence, and vulnerability to stress.

Comorbidities – Other medical conditions a person has at the same time as cancer (for example heart disease, diabetes, or lung disease).

Cohort – A group of patients studied together in medical research.

Systematic review – A type of scientific study that collects and summarises results from many different research papers on the same topic.

Quality of life – A measure of how a person feels and functions in daily life, including comfort, independence, and wellbeing.

References:

Zamagni A, Buwenge M, Ammendolia I, Ferioli M, Mandrioli A, Morganti AG, Cammelli S. Radiotherapy in elderly patients with breast cancer: a literature review of acute and late toxicity. Transl Cancer Res. 2020 Jan;9(Suppl 1):S173-S188. doi: 10.21037/tcr.2019.08.28. PMID: 35117961; PMCID: PMC8798880.

Marotte D, Chand-Fouche ME, Boulahssass R, Hannoun-Levi JM. Irradiation of localized prostate cancer in the elderly: A systematic literature review. Clin Transl Radiat Oncol. 2022 Apr 20;35:1-8. doi: 10.1016/j.ctro.2022.04.006. PMID: 35492872; PMCID: PMC9046879.