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Poster display session

522P - Weekly nab-PTX and weekly PTX for relapsed small cell lung cancer

Date

23 Nov 2019

Session

Poster display session

Topics

Tumour Site

Small Cell Lung Cancer

Presenters

Hajime Oi

Citation

Annals of Oncology (2019) 30 (suppl_9): ix157-ix181. 10.1093/annonc/mdz437

Authors

H. Oi1, Y. Yamano1, T. Yokoyama1, T. Matsuda1, M. Morise2, K. Kataoka1, T. Kimura1, Y. Kondoh1

Author affiliations

  • 1 Respiratory Medicine And Allergy, Tosei General Hospital, 489-0065 - Seto/JP
  • 2 Respiratory Medicine, Nagoya University, Graduate School of Medicine, 466-8550 - Nagoya/JP

Resources

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Abstract 522P

Background

The standard treatment of relapsed small cell lung cancer (SCLC) has not been established yet, and weekly paclitaxel (PTX) is recommend as one of the treatment options for relapsed SCLC. In advanced non-small cell lung cancer, nanoparticle albumin-bound paclitaxel (nab-PTX) has shown equal activity to PTX with less neurological adverse event. However, the benefit of nab-PTX for relapsed SCLC has not been fully evaluated yet. The aim of this study is to evaluate efficacy and safety of both weekly nab-PTX and weekly PTX regimen for relapsed SCLC.

Methods

We retrospectively reviewed consecutive relapsed SCLC patients who were treated with weekly nab-PTX (80mg/m2, day1,8,15/q4 weeks) or weekly PTX (80mg/m2, day1,8,15,22/q4 weeks) at Tosei general hospital, from January 2008 to March 2019. We evaluated the objective response rate (ORR), disease control rate (DCR), progression free survival (PFS), overall survival (OS) and adverse event profile in each regimen.

Results

A total of 52 patients with relapsed SCLC were reviewed, 18 and 34 patients received weekly nab-PTX (group A) and weekly PTX (group B), respectively. Patient characteristics (group A: group B) were as follows; male 17 (94%): 28(82%), median of age 74 :70, ECOG-PS 0-1 18(100%) :29(85%), extensive disease 14(78%) :17(50%), refractory relapse 16(89%) :20(59%). ORR in group A and B were 5.6% and 8.8%, and DCR in group A and B were 55.6% and 38%, respectively. The PFS and OS had no difference between group A and B (median PFS, 3.2months and 1.7months; median OS, 5.4 months and 4.5months). Toxicity profile of group A was tolerable as well as group B. About neurological adverse event, group A had less toxicity than group B in any grade (5(28%) and 12(35%) patients) but no severe adverse event was observed.

Conclusions

Weekly nab-PTX and weekly PTX showed similar efficacy for relapsed SCLC. In terms of toxicity, weekly nab-PTX might be less toxic especially in neurological adverse event. Although this is a retrospective single center study, the nab-PTX might be a treatment option for relapsed SCLC.

Clinical trial identification

Editorial acknowledgement

Legal entity responsible for the study

Hajime Oi.

Funding

Has not received any funding.

Disclosure

All authors have declared no conflicts of interest.

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