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How can a non-smoker live 8 years despite lung cancer recurrence?

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

Patient's Query

Hello doctor,

I am asking about a close friend, 36 years old, a non-smoker, diagnosed with lung cancer almost eight years ago. Since then, cancer has recurred six times in different areas, but each time, treatment has worked again. He is still alive and functional.

  1. Why did a 36-year-old non-smoker with lung cancer survive eight years with cancer recurring six times?

  2. Is this due to mutation-based drugs or immune response?

  3. Does repeated recurrence always mean a worse outcome, or can cancer be controlled like a chronic disease now?

Kindly suggest.
Answered by Dr. Amandeep Singh Arneja

Education:

MD RESPIRATORY MEDICINE

Professional Bio:

I am Dr. Amandeep Singh Arneja, a dedicated Chest Physician and Senior Resident in Pulmonary Medicine at Jawaharlal Nehru Medical College (JNMC), Wardha, with extensive training in the management of complex respiratory and critical care conditions. I completed my M.B.B.S. from Universal College of Medical Sciences, Tribhuvan University (2016) and M.D. in Respiratory Medicine from Shri Shankaracharya Institute of Medical Sciences, Bhilai (2025), where I gained hands-on expertise in managing ICU patients, performing advanced diagnostic and therapeutic procedures, and conducting research in pulmonary diseases. My areas of expertise include: Management of asthma, COPD, tuberculosis, and interstitial lung disease Critical care management (ICU care, mechanical ventilation) Pulmonary function testing (spirometry, DLCO) Interventional procedures (thoracentesis, ICD insertion, bronchoscopy) Sleep medicine and polysomnography Research, academic writing, and clinical presentations I hold certifications in Good Clinical Practice and Biomedical Research. I am a proud member of the National College of Chest Physicians (NCCP). Alongside my pulmonary expertise, I have also completed a CPCDM Fellowship in Diabetes from RSSDI, enabling me to provide holistic care for patients with respiratory diseases complicated by diabetes. Currently, I am also pursuing a Fellowship in Critical Care Medicine, which further enhances my ability to manage critically ill patients with respiratory and systemic illnesses. With multiple research publications, conference presentations (NAPCON, SSIMSCON), and a strong academic background, I strive to combine evidence-based medicine with compassionate patient care. My mission is to provide comprehensive, high-quality care to patients suffering from respiratory and lifestyle-related diseases.

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Hello,

Welcome to icliniq.com.

I have read your query and understand your concern.

I can understand why this feels confusing, because what you are describing does not match the usual expectation people have when they hear about lung cancer. But in practice, especially in younger non-smokers, we do see this kind of course in some patients.

In many such cases, the cancer has certain molecular features that make it more responsive to specific treatments. Because of this, even if the disease comes back in different areas over time, it can still respond again to treatment.

So what you are seeing is not just chance, but a combination of the tumor’s behavior and the availability of effective therapies that can be used one after the other. It is not only the immune system at work here.

While the body does play a role, the main reason for this kind of long survival is usually how well the disease responds to each line of treatment.

I have seen a few patients who went through multiple recurrences over the years, and each time we were able to regain control and maintain a good level of daily functioning. Repeated recurrence does not always mean things are getting worse in a straightforward way.

In some patients, the disease behaves more like something that can be managed over time, with periods of control in between. At the same time, we do remain careful because the pattern can change, so regular follow-up is important.

The fact that your friend has remained functional and responded to treatment repeatedly over eight years is actually a good sign of how his disease is behaving and how well it is being managed.

I hope I have addressed all of your queries and concerns.

For more queries, feel free to reach out to me anytime.

Thank you.

Medically reviewed by iCliniq medical review team
Published At May 11, 2026
Reviewed At May 11, 2026

Education:

MD RESPIRATORY MEDICINE

Professional Bio:

I am Dr. Amandeep Singh Arneja, a dedicated Chest Physician and Senior Resident in Pulmonary Medicine at Jawaharlal Nehru Medical College (JNMC), Wardha, with extensive training in the management of complex respiratory and critical care conditions. I completed my M.B.B.S. from Universal College of Medical Sciences, Tribhuvan University (2016) and M.D. in Respiratory Medicine from Shri Shankaracharya Institute of Medical Sciences, Bhilai (2025), where I gained hands-on expertise in managing ICU patients, performing advanced diagnostic and therapeutic procedures, and conducting research in pulmonary diseases. My areas of expertise include: Management of asthma, COPD, tuberculosis, and interstitial lung disease Critical care management (ICU care, mechanical ventilation) Pulmonary function testing (spirometry, DLCO) Interventional procedures (thoracentesis, ICD insertion, bronchoscopy) Sleep medicine and polysomnography Research, academic writing, and clinical presentations I hold certifications in Good Clinical Practice and Biomedical Research. I am a proud member of the National College of Chest Physicians (NCCP). Alongside my pulmonary expertise, I have also completed a CPCDM Fellowship in Diabetes from RSSDI, enabling me to provide holistic care for patients with respiratory diseases complicated by diabetes. Currently, I am also pursuing a Fellowship in Critical Care Medicine, which further enhances my ability to manage critically ill patients with respiratory and systemic illnesses. With multiple research publications, conference presentations (NAPCON, SSIMSCON), and a strong academic background, I strive to combine evidence-based medicine with compassionate patient care. My mission is to provide comprehensive, high-quality care to patients suffering from respiratory and lifestyle-related diseases.

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

Consult other doctors in the same speciality

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

Dr. Amandeep Singh Arneja
Dr. Amandeep Singh Arneja

Pulmonology (Asthma Doctors)

Education:

MD RESPIRATORY MEDICINE

Professional Bio:

I am Dr. Amandeep Singh Arneja, a dedicated Chest Physician and Senior Resident in Pulmonary Medicine at Jawaharlal Nehru Medical College (JNMC), Wardha, with extensive training in the management of complex respiratory and critical care conditions. I completed my M.B.B.S. from Universal College of Medical Sciences, Tribhuvan University (2016) and M.D. in Respiratory Medicine from Shri Shankaracharya Institute of Medical Sciences, Bhilai (2025), where I gained hands-on expertise in managing ICU patients, performing advanced diagnostic and therapeutic procedures, and conducting research in pulmonary diseases. My areas of expertise include: Management of asthma, COPD, tuberculosis, and interstitial lung disease Critical care management (ICU care, mechanical ventilation) Pulmonary function testing (spirometry, DLCO) Interventional procedures (thoracentesis, ICD insertion, bronchoscopy) Sleep medicine and polysomnography Research, academic writing, and clinical presentations I hold certifications in Good Clinical Practice and Biomedical Research. I am a proud member of the National College of Chest Physicians (NCCP). Alongside my pulmonary expertise, I have also completed a CPCDM Fellowship in Diabetes from RSSDI, enabling me to provide holistic care for patients with respiratory diseases complicated by diabetes. Currently, I am also pursuing a Fellowship in Critical Care Medicine, which further enhances my ability to manage critically ill patients with respiratory and systemic illnesses. With multiple research publications, conference presentations (NAPCON, SSIMSCON), and a strong academic background, I strive to combine evidence-based medicine with compassionate patient care. My mission is to provide comprehensive, high-quality care to patients suffering from respiratory and lifestyle-related diseases.

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

Consult other doctors in the same speciality
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