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EP1.04 - Immuno-oncology (ID 194)
- Event: WCLC 2019
- Type: E-Poster Viewing in the Exhibit Hall
- Track: Immuno-oncology
- Presentations: 1
- Coordinates: 9/08/2019, 08:00 - 18:00, Exhibit Hall
EP1.04-06 - Analysis of the Relationship Between Ratio N / L and Survival in Patients Treated with Immunotherapy in Lung Cancer (ID 2605)
08:00 - 18:00 | Author(s): JOAQUIN Casal
The neutrophil-lymphocyte (N / L) ratio is a marker of general immune response in different stress situations, having shown a relationship between the quotient and the evolution of patients treated with immunotherapy (IT), emphasizing the importance of inflammation in these patients.Method
In order to evaluate this relationship in a context of usual clinical practice, a retrospective review of patients with pulmonary neoplasia who received IT treatment in the first line or successive, between November 2015 and December 2018, excluding those who received treatment within of ±±clinical trial. Data were collected from the clinical history of each patient, with special attention to baseline neutrophil and lymphocyte numbers, objective response to therapy by criteria iRECIST 1.1 after 3 months of treatment and overall survival (OS) defined from the beginning of treatment until death by progression of the disease.Result
92 patients (29 women and 63 men) were analyzed with a mean age of 64 ±8 years.
15 (16,3%) patients received immunotherapy as first line treatment, 65.2% (60 patients) received it as 2nd line and 18,4% (17 patients) as 3rd or succesive lines. The average number of cycles received was 14 (1-52).
Two stretches of baseline N / L ratios ≤5 (low) and > 5 (high) were defined. Low ratio N / L (≤5) was identified in 62p (67.4%) of the patients treated with IT and high ratio N/L (> 5) in 30p (32,6%).
Of the 62 patients with a low ratio: 41 patients (66.1%) had some type of response or stabilization of their disease, 13 patients (21%) had progression and 8 patients (12.8%) received less than three months of treatment, 6 patients for PS deterioration and the other 2 patients continue with the treatment and are pending reevaluation.
Among the 30 patients patients with high N / L quotient: 7 patients (23.3%) presented response or stabilization of the disease, 23 patients (76,7%) presented progression or treatment was interrupted due to deterioration of the ECOG.
The average survival in the group with a low N / L ratio (≤5) was 213 weeks compared to the group with a high N / L ratio (> 5) 144 weeks (p <0.05).Conclusion
The N / L ratio has been identified in some studies as an adverse prognostic factor in patients treated with IT. Our data from the usual clinical practice support this theory. If these findings are confirmed in future studies, it could be used as a response biomarker for better patient selection.
OA13 - Ideal Approach to Lung Resection and Novel Perioperative Therapy (ID 146)
- Event: WCLC 2019
- Type: Oral Session
- Track: Treatment of Early Stage/Localized Disease
- Presentations: 1
- Now Available
OA13.05 - NADIM Study: Updated Clinical Research and Outcomes (Now Available) (ID 1670)
11:30 - 13:00 | Author(s): JOAQUIN Casal
Patients with stage IIIA (N2 or T4N0) are potentially curable but median overall survival is only around 15 monthsMethod
A Phase II, single-arm, open-label multicenter study of resectable stage IIIA N2-NSCLC in adult patients with CT plus IO as neoadjuvant treatment: 3 cycles of nivolumab (NV) 360 mg IV Q3W + paclitaxel 200 mg/m2 + carboplatin AUC 6 IV Q3W followed by adjuvant NV treatment for 1 year. After completing neoadjuvant therapy, all patients underwent tumor assessment prior to surgery. Surgery was performed during the 3rd or 4th week after day 21 of the 3rd neoadjuvant treatment cycle. The study aimed to recruit 46 patients. The primary endpoint was Progression-Free Survival (PFS) at 24 months. Efficacy was explored using objective pathologic response criteria. Here we present the final data on all study patients that underwent surgical assessment.Result
At the time of submission, the 46 patients had been included. None of the patients were withdrawn from the study preoperatively due to progression or toxicity. 41 patients had undergone surgery and all tumors were deemed resectable with R0 resection in all cases. Intention to treat analysis shows 35 patients (85%; 95% CI, 71; 94%) achieved major pathologic response (MPR) of which 25 (71%; 95% CI, 54; 85%) were complete pathologic responses (CPR). Downstaging was seen in 38 (93%; 95% CI, 80; 98%) of cases. The median follow-up was 13.8 months (P25; P75: 11.7; 16.6 months) for both the whole series and resected patients, and 12 month PFS was 95.7% (95% CI, 84; 99%).Conclusion
This is the first multicentric study to test CT-IO in the neoadjuvant setting in stage IIIA. Neoadjuvant CT-IO with nivolumab in resectable IIIA NSCLC yields a complete pathologic response rate that is higher than ever seen previously, together with a promising PFS which may translate into increased overall survival. EudraCT Number: 2016-003732-20. Clinical trial information: NCT 03081689.
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