547P - Immunotherapy outcome in advanced/metastatic lung cancer patients in real-world experience: Indian data

Background

Immunotherapy is now standard of care in advanced/metastatic lung cancer patients either in first line alone or in combination with chemotherapy, also in subsequent lines. Here, we presenting real world outcome with immunotherapy in lung cancer patients from India.

Methods

We performed an analysis of prospectively collected data of patients with advanced/metastatic lung cancer treated at a single academic cancer centre in India. The patient’s demographic data, treatment details, toxicity and response to treatment captured from electronic medical record of each patient. Data was analysed for safety and survival outcome.

Results

From August 2015 to September 2021, 164 eligible patients were included in this study. Median age at presentation was 59 year (range 21 year to 86 year). 82% (n=134) were male and 18% (n=34) were female (M: F 4.5:1). At presentation, 73% (n=118) were ECOG PS 0 or 1, 14.5% (n=24) were ECOG PS 2, and 12.5% (n=22) were ECOG PS 3 or 4. Out of 164, 33% (n = 54), received immunotherapy drug in first line, 46% (n = 76) in second line, 21% (n = 34) in third line and beyond. 65% (n=106) received Nivolumab, 26.5% (n=44) received Pembrolizumab, 8.5% (n=14) received Atezolizumab. Median progression free survival and median overall survival was 5 months (95% CI 3.5 to 6.5 month) and 10 months (95% CI 7.3 to 12.7 month) respectively. Overall, 3-year PFS and OS rate is 5% and 23%. Fatigue was most common seen in 15% patients, hyponatremia in 5.3%, anorexia in 2.4%. Among immune-related toxicity- pneumonitis was most common seen in 4.8%, followed by hypothyroidism in 3.8%, transaminitis and nephritis in 1.9% each, skin rash, colitis, and encephalitis in 1.4% each, adrenal insufficiency and hypophysitis in 1% each seen.

Conclusions

In real world, immunotherapy having clinically significant benefit on survival in advanced/metastatic lung cancer patients with acceptable safety profile including patients with borderline performance status.

Clinical trial identification

Editorial acknowledgement

Legal entity responsible for the study

The authors.

Funding

Has not received any funding.

Disclosure

All authors have declared no conflicts of interest.