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Explore the latest data on chemotherapy, radiation therapy, and targeted agents for unresectable NSCLC Stage IIIA/B. Key issues and key findings from ASCO 2007 and ASCO 2008 discussed in detail.
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Post - ASCO 2007 Unresectable Stage IIIA/B NSCLC CONTENT • Take Home Message . . . . . 2 • Key Issues . . . . . . 4 • Chemotherapy and RT . . . . . 7 • Navelbine and RT . . . . . 15 • Targeted agents and RT. . . . . 18
ASCO 08 NSCLC unresectable Stage IIIA/BTake Home Message • Many data on CT-RT without major results • Phases II with Taxanes, Pemetrexed • Integration of targeted agents (Cetuximab, Bevacizumab, Erlotinib) in concurrent CT-RT • Docetaxel as consolidation not recommended • Low MS with paclitaxel-CBDCA (known data…) • New data on NVB Oral and concurrent CT-RT • Focus on RT & CT-RT-induced toxicities (lung) (#7555p, #7573p, #7602p)
ASCO 08 NSCLC unresectable Stage IIIA/BRT ant then… Induction, Sequential or Consolidation CT? • Induction CT beforeconcurrent CT-RT: • GEM-platin alone(#7599p)+ Taxane(#7589p) (#7592p) before D-platin-RT “limited impact on OS and PFS” or “GPG concurrently with GEM 225 mg/m2/wtoo toxic” but GEM-CDDP before CDDP-RT more favourable(#7558p) • Consolidation CT after concurrent CT-RT: • HOG LUN 01 update: docetaxel not recommended • GEM vs GEM-CBDCA(#7559p):no benefit from the combination (46 vs 42% 2y-OS) • GEM vs GEM-D after EP-RT(#7597p):better PFS for the doublet (24 vs 8 mo) but at the price of higher toxicity • Sequential CT: • Meta-analysis on 13 rando trials, 2776 pts (Bozcuk #7575p): • The shorter is the time to RT after the onset of induction CT, the greater is the benefit
ASCO 08 NSCLC unresectable Stage IIIA/BKey Issues: Chemotherapy (1/2) • Docetaxel (D): • Ph III DP vs MVP with concur. RT(#7515p): benefit of 3rd generation CT • HOG-LUN 01 update (#7519p): refer to consolidation section • Weekly D in CT-RT schemes: • D-CDDP induction wkly D-RT (#7561p): MS 21 mo & 2y OS 34% • D-CDDP induction D-CDDP+concur. RT (#P 7585): 65% RR • Concurrent wkly D-CBDCA-RT (20 mg/m2, AUC 2, 60Gy) consol. D-CBDCA (#7565p): 2y OS of 20%!, 21% G3 esophagitis & pneumonitis scheme not recommended • Concurrent D-RT (20 mg/m2, #7581p): significant G3-4 tox. (20% esophagitis & 9% pneumonitis) + 5.5% related-death, MS 12.2mo • Paclitaxel-CDDP: sequential vs induction + RT (#7520p): • - Low median survival in both arms: 13.2 and 15.4 m • 3rd generation CT with CDDP–RT likely superior to 2nd generation • Unimproved outcome from taxanes as concurrent or consolidation CT in CT-RT
ASCO 08 NSCLC unresectable Stage IIIA/BKey Issues: Chemotherapy (2/2) • Pemetrexed (PEM) : • Concurrent Pem-CDDP-RT consol. D (#7569p): 53% RR • Pilot study of CBDCA + dose-dense Pem (#7571p) • Ph I concur. Pem-CDDP-RT(#7550p) • Other CT agents & concurrentRT: • S1 (Oral Fluoropyrim.) (Japan) + P + RT Ph II (#7556p): • 87% RR (46% IIIA), PFS 13.4 mo, 6% FN, 24% G3 neutropenia, 12% G3 esophagitis and 4% pneumonitis, • - Oral platinum (#7560p): MTD to be confirmed 30 mg /m2/d
ASCO 08 NSCLC unresectable Stage IIIA/BKey Issues : Navelbine Oral/i.v. • Navelbine Oral is effective in elderly pts • 70 % ORR and 40% 2y-OS in “curative” intent (60 Gy RT) concurrent CT-RT setting (Silvano #20698p) • Navelbine iv or Oral: • A retrospective experience (Portalone #18507p) Effective and safe concurrently with RT, even in elderly pts
ASCO 08 NSCLC unresectable Stage IIIA/BKey Issues : Targeted Therapies • Cetuximab • Appears safe and promising when grafted onto various chemoradiation regimens (#7516p) (#7607p) • Bevacizumab and Erlotinib • Addition seems to be feasible but squamous histology requires major caution (pulmonary hemorrage G3-5)(#7517p) • Erlotinib added to RT, no convincing early results(#7563p)
Concomitant Docetaxel-CDDP vs MVP:A Japanese Phase III Experience (Kiura, #7515p*) # = N Abstract; O = Oral presentation; P = Poster; • 3rd generation CDDP based CT seems superior to 2nd generation cytotoxic • The MS and RR are related to the characteristics of Japanese population
Concomitant Docetaxel-CDDP vs MVP:A Japanese Phase III Experience (Kiura, #7515p*) Toxicity G3-4 (% pts) # = N Abstract; O = Oral presentation; P = Poster; More esophagitis and treatment-related deaths in the DP-RT arm
Consolidation Docetaxel:Survival update of HOG LUN – 01 (#Mina 7519p) # = N Abstract; O = Oral presentation; P = Poster; *DSMB = Data safety monitoring board Consolidation CT by TXT cannot be recommended
Paclitaxel-platinum compound:Induction & concurrent scheme (Ardizzoni #7520p) # = N Abstract; O = Oral presentation; P = Poster; Poor survival results in both groups, in line with previous data withpaclitaxel
Paclitaxel-platinum compound:Induction & concurrent scheme (Ardizzoni #7520p) Toxicity G3-4 (% pts) # = N Abstract; O = Oral presentation; P = Poster; Fewer additional toxicity in the concurrent scheme than the sequential one
Gemcitabine CBDCA Induction:before CDDP + concurrent RT (Germonpré, #7558p) # = N Abstract; O = Oral presentation; P = Poster; Pre-Treatment FEV1 impacts on results: MS 21.6/9 mo if FEV1 70% /<70% And … Pneumonitis and eosophagitis are not reported !
Navelbine Oral concurrently with RT in Elderly Stage IIIA/B NSCLC (Silvano, #20698p) • Oral VRB : 20mg/m2 twice weekly concurrently with RT • 25 pts > 65 y, ECOG < 2, Stage IIIA/B 30/70% • > 1 poor risk inclusion criteria: 60% • 10 pts received 60Gy as “curative” intent RT • 15 pts received 45Gy as palliative RT • Palliative RT: improvement of PS ECOG in 65% pts # = N Abstract; O = Oral presentation; P = Poster; • NBVo concurrently with 60 Gy RT effective in elderly population
Navelbine concurrently with RT A retrospective analysis in Stage IIIA/B (Portalone P#18507) • 31 pts, 16 males, median age 60y, Stage IIIA/B 80.7/19.3% • Induction: CDDP 80 mg/ m2 or CBDCA AUC 5 plus either GEM 1200 mg/ m2 or NVBiv 25 mg/ m2 D1, 8, 21 • CT-RT: NVB iv 5 mg/ m2 or NVBo 12 mg/ m2 x 3 / week 2 hours before RT(2 Gy /d for 6 w) # = N Abstract; O = Oral presentation; P = Poster; • NVB concurrently with RT effective and safe
Erlotinib & concurrent 3D-RT vs 3D-RTRandomized Phase II-Efficacy (Martinez, #7563p*) Data updated since published abstract # = N Abstract; O = Oral presentation; P = Poster; • Erlotinib is safe & reported similar OR added to RT with OS not yet mature
Cetuximab plus CT-RT (Paclitaxel-CBDCA):Ph. II RTOG 0324 -(Blumenschein #7516p*) Efficacy Toxicity G3-4 (% pts) # = N Abstract; O = Oral presentation; P = Poster; *Median FU: 21,6 mo Paclitaxel-CBDCA scheme & Cetuximab: MS not far from the doublet NVB-CDDP
Cetuximab plus CT-RT (Paclitaxel-CBDCA):Randomized Phase II trial GALGB 30407– (Govindan, #7518p) Toxicity G3-4 (% pts) # = N Abstract; O = Oral presentation; P = Poster; Acceptable toxicities from the addition of Cetuximab
Bevacizumab (B) + Erlotinib (E) plus CT-RT:Phase II trial – Toxicity G3-4(%pts) and ORR (Socinski, #7517p) # = N Abstract; O = Oral presentation; P = Poster; • The cohort II chosen for futher investigations (3 grade 3 lung toxicities) • Caution to lung hemorrage risks