Abstract 5908
Background
Gastric and GEJ cancers are one of the top four cancers in India with poor 5-year survival. Post ASCO 2017, we switched to docetaxel-based peri-operative chemotherapy (FLOT) which is the new standard of care. In this audit, we report the pathological response and toxicity of FLOT compared to our older standard (EOX/ECF).
Methods
We analysed our database of 118 patients with gastric or GEJ adenocarcinoma treated at our center from May 2011 to April 2019. 85 patients (72%) received perioperative chemotherapy with three pre-operative and three post-operative 3-week cycles of either EOX (50mg/m2 Epirubicin and 130mg/m2 Oxaliplatin on Day 1 plus 1250mg/m2 Capecitabine for 21 days) or ECF (50mg/m2 Epirubicin and 60mg/m2 Cisplatin on Day 1 plus 800mg/m2/day Fluorouracil as continuous intravenous infusion for 5 days). 33 patients (28%) received four pre-operative and four post-operative 2-week cycles of intravenous FLOT (50mg/m2 Docetaxel, 85mg/m2 Oxaliplatin, 200mg/m2 Leucovorin and 2600mg/m2 Fluorouracil as 24hr infusion on Day 1). We compared the toxicity, and pathological tumor response rates of patients on EOX/ECF and FLOT regimens.
Results
The patients were aged 30 to 73 years (Median 58 years) and 40 (34%) were women. 85 patients received either EOX/ECF and 33 received FLOT chemotherapy. 64 (75%) patients in EOX/ECF underwent gastrectomy among whom eight (12.5%) had pathological Tumour Regression Score (TRS) of 0 or 1. 24 (72%) patients in FLOT group have undergone gastrectomy of whom six (25%) had TRS of 0 or 1. 34 (40%) patients completed full EOX/ECF regimen while 20 (60%) completed full FLOT. The commonest reason for not completing the peri-operative chemotherapy was toxicity in EOX/ECF group (29%) and refusal to undergo surgery (21%) in the FLOT group. 15% patients did not complete FLOT chemotherapy due to toxicity.
Conclusions
FLOT regimen is a better tolerated perioperative therapy in Indian patients achieving higher pathological response compared to EOX/ECF regimen. The patients in both groups are currently on follow up to capture the relapse free survival duration.
Clinical trial identification
Editorial acknowledgement
Legal entity responsible for the study
Tanuj Chawla.
Funding
Has not received any funding.
Disclosure
All authors have declared no conflicts of interest.
Resources from the same session
2083 - PALAESTRA - A phase II trial with short-course radiotherapy followed by chemotherapy as palliative treatment in esophageal adenocarcinoma
Presenter: David Borg
Session: Poster Display session 2
Resources:
Abstract
4317 - Prognostic factors analysis of 343 patients with adenocarcinoma of esophagogastric junction
Presenter: Yixun Lu
Session: Poster Display session 2
Resources:
Abstract
4099 - Effects of preoperative preparation time on efficacy of neoadjuvant chemotherapy (SOX) in patients with advanced gastric cancer
Presenter: Xinxin Wang
Session: Poster Display session 2
Resources:
Abstract
3769 - The prognostic value of higher absolute lymphocyte counts for patients with surgically resected non-advanced gastric cancer
Presenter: Se Jun Park
Session: Poster Display session 2
Resources:
Abstract
1718 - Trastuzumab and pertuzumab added to neoadjuvant chemoradiotherapy in resectable HER2+ esophageal adenocarcinoma patients: an update on survival and predictive biomarkers in the TRAP study
Presenter: Charlotte Stroes
Session: Poster Display session 2
Resources:
Abstract
5403 - Interim analysis of a phase II trial of perioperative chemotherapy plus avelumab in esophagogastric and gastric adenocarcinoma
Presenter: Thierry Alcindor
Session: Poster Display session 2
Resources:
Abstract
591 - Evaluation of the introduction of primary G-CSF prophylaxis to the FLOT chemotherapy regimen.
Presenter: Kelly-Marie Crampton
Session: Poster Display session 2
Resources:
Abstract
1402 - Subgroup analyses of a randomized two-by-two factorial phase II trial comparing neoadjuvant chemotherapy with 2 and 4 courses of cisplatin/S-1 (CS) and docetaxel/cisplatin/S-1 (DCS) as neoadjuvant chemotherapy for locally advanced gastric cancer
Presenter: Tsutomu Hayashi
Session: Poster Display session 2
Resources:
Abstract
3743 - HER2 Copy Number as Predictor of Disease-Free Survival in HER2-Positive Resectable Gastric Cancer
Presenter: Zimin Liu
Session: Poster Display session 2
Resources:
Abstract
2032 - Effect of neoadjuvant chemotherapy on the Programmed Death-1 pathway in esophageal and gastric cancer
Presenter: Maria Svensson
Session: Poster Display session 2
Resources:
Abstract