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What factors affect my friend's survival with lung cancer?

This Premium Q&A, reviewed and published, features a real conversation between an iCliniq user and a physician.

Patient's Query

Hello doctor,

My friend is 40 and was diagnosed with lung cancer with brain metastasis last year, and he has already completed radiation for brain lesions and is on systemic therapy now.

We are trying to understand survival expectations in such situations. So our concerns are -

  1. Can a 40-year-old with lung cancer and brain metastasis still survive more than a year?

  2. Do younger patients generally respond better to treatment in metastatic cases?

  3. Also, what factors usually influence survival in lung cancer with brain metastasis?

Kindly help.

Thank you.

Answered by Dr. Ishwar Lal Rathod

Education:

MBBS

Professional Bio:

Dr. Ishwar Lal Rathod is a Clinical Hematologist, Medical Oncologist, and Radiation Oncologist with additional expertise in Pain & Palliative Care and general medicine. He specializes in the diagnosis and management of solid tumors and hematological malignancies, offering evidence-based care spanning chemotherapy, immunotherapy, targeted therapy, radiotherapy coordination, and supportive oncology. His practice is built on personalized treatment planning, compassionate communication, and holistic care that prioritizes both survival and quality of life. Actively engaged in academic teaching, clinical research, and patient education, Dr. Rathod is committed to ethical, guideline-driven oncology practice.

This doctor is not available for online consultations on the platform anymore.

Hello,

Welcome to icliniq.com.

I read your query and can understand your concern.

If you can share the biopsy report and the type of lung cancer (for example, adenocarcinoma (a cancer that begins in glandular cells lining organs), squamous cell carcinoma (a cancer caused by excessive growth of squamous cells), or another subtype), I can provide more accurate guidance.

Yes, even with brain metastases, meaning cancer that has travelled to the brain from some other part of the body, living beyond a year is absolutely possible. How long someone lives varies a great deal from person to person, and depends on a number of things, including:

Performance status (general health and activity level).

Tolerance to chemotherapy or systemic therapy.

Number and size of brain lesions.

Response to treatment on follow-up imaging, such as a CT (computed tomography) scan or PET-CT (positron emission tomography - computed tomography)

With modern treatments, especially targeted therapy (treatment that attacks specific cancer cell targets) and immunotherapy (treatment that promotes the immune system to fight cancer), some patients live several years with a good quality of life.

A younger age (around 40 years) can sometimes help because younger patients may tolerate treatment better, but age alone does not determine survival. Since your friend has already completed brain radiation and is currently on systemic therapy, the treatment goal is to control both the brain lesions and the disease elsewhere in the body.

Overall, many patients with lung cancer and brain metastases do survive beyond one year, and some live longer depending on how well the cancer responds to treatment.

I hope this helps you better understand the situation.

If possible, please upload the biopsy report, details of the treatment completed, and any molecular testing reports, and I will try to guide you further regarding treatment options.

Hope this helps!

Warm regards.

Medically reviewed by iCliniq medical review team
Published At May 23, 2026
Reviewed At July 13, 2026

Education:

MBBS

Professional Bio:

Dr. Ishwar Lal Rathod is a Clinical Hematologist, Medical Oncologist, and Radiation Oncologist with additional expertise in Pain & Palliative Care and general medicine. He specializes in the diagnosis and management of solid tumors and hematological malignancies, offering evidence-based care spanning chemotherapy, immunotherapy, targeted therapy, radiotherapy coordination, and supportive oncology. His practice is built on personalized treatment planning, compassionate communication, and holistic care that prioritizes both survival and quality of life. Actively engaged in academic teaching, clinical research, and patient education, Dr. Rathod is committed to ethical, guideline-driven oncology practice.

This doctor is not available for online consultations on the platform anymore.

Same symptoms don't mean you have the same problem. Consult a doctor now!

Education:

MBBS

Professional Bio:

Dr. Ishwar Lal Rathod is a Clinical Hematologist, Medical Oncologist, and Radiation Oncologist with additional expertise in Pain & Palliative Care and general medicine. He specializes in the diagnosis and management of solid tumors and hematological malignancies, offering evidence-based care spanning chemotherapy, immunotherapy, targeted therapy, radiotherapy coordination, and supportive oncology. His practice is built on personalized treatment planning, compassionate communication, and holistic care that prioritizes both survival and quality of life. Actively engaged in academic teaching, clinical research, and patient education, Dr. Rathod is committed to ethical, guideline-driven oncology practice.

This doctor is not available for online consultations on the platform anymore.

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