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Efficacy and Safety of Rociletinib Versus Chemotherapy in Patients With EGFR-Mutated NSCLC: The Results of TIGER-3, a Phase 3 Randomized Study
- Yang, James Chih-Hsin;
- Reckamp, Karen L;
- Kim, Young-Chul;
- Novello, Silvia;
- Smit, Egbert F;
- Lee, Jong-Seok;
- Su, Wu-Chou;
- Akerley, Wallace L;
- Blakely, Collin M;
- Groen, Harry JM;
- Bazhenova, Lyudmila;
- Costa, Enric Carcereny;
- Chiari, Rita;
- Hsia, Te-Chun;
- Golsorkhi, Tony;
- Despain, Darrin;
- Shih, Danny;
- Popat, Sanjay;
- Wakelee, Heather
- et al.
Published Web Location
https://doi.org/10.1016/j.jtocrr.2020.100114Abstract
Introduction
The TIGER-3 (NCT02322281) study was initiated to compare the efficacy and safety of rociletinib, a third-generation EGFR tyrosine kinase inhibitor (TKI) that targets EGFR T790M and common EGFR-activating mutations, versus chemotherapy in patients with NSCLC who progressed on first- or second-generation EGFR TKIs.Methods
Patients with advanced or metastatic EGFR-mutated NSCLC with disease progression on standard therapy (previous EGFR TKI and platinum-based chemotherapy) were randomized to oral rociletinib (500 or 625 mg twice daily) or single-agent chemotherapy (pemetrexed, gemcitabine, docetaxel, or paclitaxel).Results
Enrollment was halted when rociletinib development was discontinued in 2016. Of 149 enrolled patients, 75 were randomized to rociletinib (n = 53: 500 mg twice daily; n = 22: 625 mg twice daily) and 74 to chemotherapy. The median investigator-assessed progression-free survival (PFS) was 4.1 months (95% confidence interval [CI]: 2.6-5.4) in the rociletinib 500-mg group and 5.5 months (95% CI: 1.8-8.1) in the 625-mg group versus 2.5 months (95% CI: 1.4-2.9) in the chemotherapy group. An improved PFS was observed in patients with T790M-positive NSCLC treated with rociletinib (n = 25; 500 mg and 625 mg twice daily) versus chemotherapy (n = 20; 6.8 versus 2.7 mo; hazard ratio = 0.55, 95% CI: 0.28-1.07, p = 0.074). Grade 3 or higher hyperglycemia (24.0%), corrected QT prolongation (6.7%), diarrhea (2.7%), and vomiting (1.3%) were more frequent with rociletinib than chemotherapy (0%, 0%, 1.4%, and 0%, respectively).Conclusions
Rociletinib had a more favorable median PFS versus chemotherapy but had higher rates of hyperglycemia and corrected QT prolongation in patients with advanced EGFR-mutated NSCLC who progressed on previous EGFR TKI. Incomplete enrollment prevented evaluation of the primary efficacy end point.Many UC-authored scholarly publications are freely available on this site because of the UC's open access policies. Let us know how this access is important for you.
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