Impact of renin angiotensin system inhibitors on survival of patients with metastatic non-small cell lung cancer.

BACKGROUND

We aimed to explore the correlation between anti-hypertensive treatment and survival rates in patients with metastatic non-small cell lung cancer (mNSCLC).

OBJECTIVE

In this study, we analyzed the correlation between antihypertensive treatment and survival in 300 patients with mNSCLC.

DESIGN

Retrospective.

SETTINGS: Medical faculty hospital.

PATIENTS AND

METHODS

We investigated the relationship between antihypertensive treatment and survival in 300 patients who were diagnosed with mNSCLC. We also examined the relationship between histological type, performance status, gender, age and type of antihypertensive medication used and survival.

MAIN OUTCOMES AND MEASURES: Survival difference between mNSCLC patients with and without antihypertensive treatment.

SAMPLE SIZE: 300 patients with mNSCLC.

RESULTS

Among patients receiving concomitant antihypertensive treatment, 107 (35.7%) were prescribed angiotensin-converting enzyme inhibitors (ACEi) or angiotensin II receptor blockers (ARB), 64 (21.3%) beta-blockers and 36 (11%) calcium channel blockers. The study found that the overall survival rates for all patients at 36 and 60 months were 11.5% and 7%, respectively. However, the ACEi/ARB group had higher survival rates at 18.1% and 12% for 36 and 60 months, respectively, compared to the non-ACEi/ARB group with rates of 8.7% and 5% (P<.05).

CONCLUSION

These results strongly suggest that renin-angiotension system (RAS) inhibitors hold great promise as potential adjunctive therapies for mNSCLC due to their significant inhibitory effects on cell proliferation, angiogenesis and tumor progression.

LIMITATIONS: Retrospective and non-randomized nature. Additionally, the retrospective analysis did not allow for verification of the duration or regularity of drug use, which made it infeasible to examine dose-response relationships with reliability.