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Annals of Oncology<br />

pemetrexed (PEM) maintenance <strong>the</strong>rapy produced a high magnitude of PFS<br />

improvement. The OLCSG 0903 phase 2 trial investigated efficacy and safety of cisplatin<br />

(CDDP)-docetaxel (DOC)-BEV induction <strong>the</strong>rapy followed by BEV-PEM maintenance<br />

<strong>the</strong>rapy in patients with advanced nonsquamous non-small cell lung carcinoma.<br />

Methods: In this trial, 40 patients with good PS (0 or 1) participated in <strong>the</strong> induction<br />

phase, specified as four cycles of induction CDDP (80 mg/m 2 ), DOC (60 mg/m 2 ) and<br />

BEV (15 mg/kg) on day 1 of a 21-day cycle. Patients who had not progressed during<br />

CDDP-DOC-BEV induction received maintenance BEV (15 mg/kg) and PEM (500<br />

mg/m 2 ) on day 1 of a 21-day cycle until disease progression. The primary endpoint<br />

was PFS, and <strong>the</strong> secondary endpoints included toxicity, OS and response rate.<br />

Results: Patient characteristics were as follows: median age: 62 years; 78% male;<br />

100% Japanese; 30% PS 0; 73% stage IV; and 70% adenocarcinoma. At <strong>the</strong> time of<br />

this analysis, 23pts (58%) discontinued <strong>the</strong> treatment, and <strong>the</strong> proportion of<br />

discontinuations to AEs was 35% (8/23). The principal toxicity was<br />

myelosuppression (grade 4 hematological: 20 patients [50%]), and grade 3/4 febrile<br />

neutropenia was observed in 10 (25%) despite no treatment-related deaths. The<br />

objective response rate and disease control rate (% patients with CR/PR/SD) was<br />

82.5% and 97.5%, respectively. The median PFS time was 10.2 months, and <strong>the</strong><br />

6-month PFS rate was 63.2% (95% confidence interval: 44.9-76.9 %).<br />

Conclusions: CDDP-DOC-BEV followed by BEV-PEM maintenance seems an<br />

effective and moderately tolerated treatment for patients with advanced<br />

nonsquamous non-small cell lung carcinoma.<br />

Disclosure: K. Hotta: Eli Lilly Japan sanofi-aventis Chugai Pharmaceutical Co. Ltd<br />

Nippon Kayaku. N. Takigawa: Eli Lilly Japan sanofi-aventis Chugai Pharmaceutical<br />

Co. Ltd. K. Kiura: Eli Lilly Japan sanofi-aventis Chugai Pharmaceutical Co. Ltd<br />

Nippon Kayaku. All o<strong>the</strong>r authors have declared no conflicts of interest.<br />

1328 META-ANALYSIS OF RELATIONSHIP BETWEEN SKIN RASH<br />

AND OUTCOME IN NON-SMALL-CELL LUNG CANCER<br />

(NSCLC) PATIENTS TREATED WITH ERLOTINIB (E) AND<br />

GEFITINIB (G)<br />

K.F. Borgonovo, F. Petrelli, M. Cabiddu, M. Ghilardi, M. Cremonesi, F. Maspero,<br />

S. Barni<br />

Medical Oncology Division, Azienda Ospedaliera Treviglio-Caravaggio, Treviglio,<br />

ITALY<br />

Introduction: Dermatological toxicity in <strong>the</strong> form of acneiform rash is a common<br />

event in NSCLC patients being treated with anti-EGFR TKIs. An association between<br />

clinical benefit by EGFR-targeted <strong>the</strong>rapy and development of this form of skin<br />

toxicity has been noted. The objective of this meta-analysis was to assess <strong>the</strong> predictive<br />

value of skin rash for outcome in patients with NSCLC treated with E or G.<br />

Materials and methods: Prospective clinical trials or retrospective case series with<br />

reported survival (OS), progression (PFS/TTP) and response rate (RR) as a function<br />

of skin rash were serched in PubMed until January <strong>2012</strong>. The selected studies have to<br />

include adult patients with histologically confirmed NSCLC treated with G or E,<br />

alone or in combination with o<strong>the</strong>r approved agents. Hazard ratios with 95%<br />

confidence intervals (HRs) for PFS/TTP and OS and risk ratios (RRs) for response<br />

rate in patients with rash were pooled in a meta-analysis.<br />

Results: Twenty-four publications were included in this meta-analysis (17<br />

prospective trials and 7 retrospective case series) for a total of 3032 patients. For <strong>the</strong><br />

primary endpoint (OS) <strong>the</strong> occurrence of skin rash was significantly associated with<br />

reduced risk of death in patients treated with E or G (HR 0.30, p 3 14/7;<br />

non-smoker/smoker: 13/8, with EGFR mutations/without EGFR mutations – 12/9.<br />

Results: Median PFS was 7 months overall, ORR was 75% (9/12, 8 partial responses,<br />

1 complete response) and <strong>the</strong> MoS was not reached in patients with EGFR<br />

mutations. Median PFS was 2 months overall, no objective responses and <strong>the</strong> MoS<br />

was 4 months in patients without EGFR mutations. Differences are statistically<br />

significent in ORR and PFS (p < 0.05).<br />

Conclusions: EGFR TKIs showed high effectiveness and good disease control in<br />

patients with brain metastases from NSCLC with EGFR mutations.<br />

Disclosure: All authors have declared no conflicts of interest.<br />

1331 COMPARISON OF SURVIVAL IN PATIENTS WITH ADVANCED<br />

LUNG ADENOCARCINOMA TREATED BEFORE AND AFTER<br />

GEFITINIB APPROVAL IN CHINA<br />

Y. Shi 1 ,Y.Liu 1 , X. Hao 1 ,J.Li 1 ,X.Hu 1 , Y. Wang 1 , Z. Wang 2 , H. Wang 1 , X. Han 1 ,<br />

X. Zhang 1<br />

1 Oncology, Cancer Hospital-China Academy of Medical Sciences, Beijing,<br />

CHINA, 2 Medical Oncology, Cancer Hospital-Chao Yang District BeijingCAMS<br />

and PUMC, Beijing, CHINA<br />

Objective: This study compared <strong>the</strong> overall survival (OS) between advanced lung<br />

adenocarcinoma patients of before and after gefitinib approval in China.<br />

Methods: The clinical data of 558 advanced lung adenocarcinoma patients who ever<br />

received palliative chemo<strong>the</strong>rapy were reviewed retrospectively. According to a<br />

matched-pair case-control study design, 255 patients of before gefitinib approval who<br />

only received palliative chemo<strong>the</strong>rapy and 255 patients of after gefitinib approval<br />

who received gefitinib treatment were matched by age, sex and smoking history.<br />

Volume 23 | Supplement 9 | September <strong>2012</strong> doi:10.1093/annonc/mds409 | ix435

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