Reference Detail

Ref Type

Journal Article

PMID

(30268448)

Authors

Dudnik E, Bshara E, Grubstein A, Fridel L, Shochat T, Roisman LC, Ilouze M, Rozenblum AB, Geva S, Zer A, Rotem O, Allen AM, Peled N

Title

Rare targetable drivers (RTDs) in non-small cell lung cancer (NSCLC): Outcomes with immune check-point inhibitors (ICPi).

Journal	Vol	Issue	Date	Pages	Journal Short Title
Lung cancer (Amsterdam, Netherlands)	124		2018 10	117-124	Lung Cancer

URL

Abstract Text

Efficacy of immune check-point inhibitors (ICPi) in NSCLC with rare targetable drivers (RTDs) is largely unknown.Consecutive patients with NSCLC and RTDs (non-EGFR/ALK, n-82) were selected from the Davidoff Cancer Center database. ORR, PFS, OS with ICPi, OS since advanced disease diagnosis, TMB, MSI, and PD-L1 expression were analyzed; uni- and multivariate PFS and OS analyses were done. OS with ICPi was compared between the RTD cohort and the non-selected NSCLC cohort (n-278).Of 50 tumors tested, 32%, 38%, and 30% were associated with ≥50%, 1-49% and <1% PD-L1 expression, respectively. Median TMB (n-48) comprised 4 muts/Mb (0-57); TMB ≥ 10 muts/Mb was seen in 19% of tumors. Both TMB and PD-L1 expression varied across different RTDs. All the 47 tumors were MSI stable. ORR with ICPi (n-44) was 16%, median PFS was 3.2 months (95% CI, 2.6-5.0), median OS was 16.2 months (95% CI, 8.4-NR). No correlation was seen between OS with ICPi and PD-L1 expression (p > 0.4), TMB (p > 0.8), or RTD type (p > 0.3). In the multivariate analysis, ECOG PS (p-0.005), targeted agents exposure (p-0.005), and ICPi exposure (p-0.04) were the only variables which correlated with OS since advanced disease diagnosis. Median OS since advanced disease diagnosis comprised 32 months (95% CI, 19.9-44.9) and 13 months (95% CI, 6.6-15.9) for patients who were and were not exposed to ICPi, respectively (log-rank test-6.3; p-0.01). In the inter-cohort comparison, for patients matched for ECOG PS (0/1), median OS with ICPi comprised 17.5 months (95% CI, 8.1-NR) and 8.6 months (95% CI, 6.7-NR) for RTD and non-selected patients, respectively (log-rank test-2.4, p-0.1).In NSCLC with RTD, ICPi have favorable efficacy and independent impact on OS. NSCLC with RTD is associated with MSI stable status and variable levels of PD-L1 expression and TMB; their predictive value remains to be determined.

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Molecular Profile	Treatment Approach

Gene Name	Source	Synonyms	Protein Domains	Gene Description	Gene Role

Therapy Name	Drugs	Efficacy Evidence	Clinical Trials

Drug Name	Trade Name	Synonyms	Drug Classes	Drug Description

Gene	Variant	Impact	Protein Effect	Variant Description	Associated with drug Resistance

Molecular Profile	Indication/Tumor Type	Response Type	Therapy Name	Approval Status	Evidence Type	Efficacy Evidence	References
RET mutant	lung non-small cell carcinoma	unknown	unspecified immune checkpoint inhibitor	Clinical Study - Cohort	Actionable	In a retrospective clinical study, patients with non-small cell lung cancer harboring rare targetable drivers (RTD) (BRAF, ERBB2/3, RET, MET, ROS1, NTRK) who received immune checkpoint inhibitors (ICI) achieved longer median overall survival (mOS) (32 vs 13 mo, p=0.01) compared to those who did not receive ICI, mOS was 44.9 mo in a patient harboring RET mutation, although RTD type was not associated with OS in a univariate analysis (PMID: 30268448).	30268448
BRAF mutant	lung non-small cell carcinoma	unknown	unspecified immune checkpoint inhibitor	Clinical Study - Cohort	Actionable	In a retrospective clinical study, patients with non-small cell lung cancer harboring rare targetable drivers (RTD) (BRAF, ERBB2/3, RET, MET, ROS1, NTRK) who received immune checkpoint inhibitors (ICI) achieved longer median overall survival (mOS) (32 vs 13 mo, p=0.01) compared to those who did not receive ICI, mOS was not reached in patients harboring BRAF non-V600E (n=5) mutations, although RTD type was not associated with OS in a univariate analysis (PMID: 30268448).	30268448
ROS1 fusion	lung non-small cell carcinoma	unknown	unspecified immune checkpoint inhibitor	Clinical Study - Cohort	Actionable	In a retrospective clinical study, patients with non-small cell lung cancer harboring rare targetable drivers (RTD) (BRAF, ERBB2/3, RET, MET, ROS1, NTRK) who received immune checkpoint inhibitors (ICI) achieved longer median overall survival (mOS) (32 vs 13 mo, p=0.01) compared to those who did not receive ICI, mOS was not reached in a patient harboring ROS1 fusion, although RTD type was not associated with OS in a univariate analysis (PMID: 30268448).	30268448
RET fusion	lung non-small cell carcinoma	unknown	unspecified immune checkpoint inhibitor	Clinical Study - Cohort	Actionable	In a retrospective clinical study, patients with non-small cell lung cancer harboring rare targetable drivers (RTD) (BRAF, ERBB2/3, RET, MET, ROS1, NTRK) who received immune checkpoint inhibitors (ICI) achieved longer median overall survival (mOS) (32 vs 13 mo, p=0.01) compared to those who did not receive ICI, mOS was 25.7 mo in patients harboring RET fusions (n=4), although RTD type was not associated with OS in a univariate analysis (PMID: 30268448).	30268448
BRAF V600E	lung non-small cell carcinoma	unknown	unspecified immune checkpoint inhibitor	Clinical Study - Cohort	Actionable	In a retrospective clinical study, patients with non-small cell lung cancer harboring rare targetable drivers (RTD) (BRAF, ERBB2/3, RET, MET, ROS1, NTRK) who received immune checkpoint inhibitors (ICI) achieved longer median overall survival (mOS) (32 vs 13 mo, p=0.01) compared to those who did not receive ICI, mOS was not reached in patients harboring BRAF V600E (n=5) mutations, although RTD type was not associated with OS in a univariate analysis (PMID: 30268448).	30268448