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Mini Oral - Gastrointestinal tumours, non-colorectal

1424MO - Perioperative FLOT plus ramucirumab versus FLOT alone for resectable esophagogastric adenocarcinoma– Updated results and subgroup analyses of the randomized phase II/III trial RAMSES/FLOT7 of the German AIO and Italian GOIM

Date

18 Sep 2020

Session

Mini Oral - Gastrointestinal tumours, non-colorectal

Presenters

Salah-Eddin Al-Batran

Citation

Annals of Oncology (2020) 31 (suppl_4): S841-S873. 10.1016/annonc/annonc284

Authors

S. Al-Batran1, R.D. Hofheinz2, H. Schmalenberg3, D. Strumberg4, E. Goekkurt5, S. Angermeier6, T. Zander7, J. Potenberg8, H. Kopp9, D. Pink10, G.M. Siegler11, M. Schenk12, F. De Vita13, E. Maiello14, T. Gaiser15, D. Sookthai1, U.S. Bankstahl1, C. Pauligk1, T.O. Götze16, N. Homann17

Author affiliations

  • 1 Ikf, Institut für Klinische Krebsforschung IKF GmbH at Krankenhaus Nordwest, 60488 - Frankfurt am Main/DE
  • 2 Tagestherapiezentrum Am Itm, University Medical Center Mannheim, 68167 - Mannheim/DE
  • 3 Iv. Medizinische Klinik, Städtisches Klinikum Dresden, Dresden/DE
  • 4 Medizinische Klinik Iii - Hämatologie / Onkologie, Marienhospital Herne, Herne/DE
  • 5 Hematology-oncology Practice Hamburg (hope), Facharztzentrum Eppendorf, 20249 - Hamburg/DE
  • 6 Medizinische Klinik I, Klinikum Ludwigsburg, Ludwigsburg/DE
  • 7 Klinik Für Innere Medizin I, Uniklinik Köln, 50937 - Cologne/DE
  • 8 Klinik Für Innere Medizin I, Ev. Waldkrankenhaus, 13589 - Berlin/DE
  • 9 Oncology/hematology, Robert-Bosch-Krankenhaus, 70376 - Stuttgart/DE
  • 10 Klinik Für Hämatologie, Onkologie Und Palliativmedizin, Sarkomzentrum Berlin-brandenburg, Klinik und Poliklinik für Innere Medizin C, Hämatologie und Onkologie, Transplantationszentrum, Palliativmedizin, Universität Greifswald and HELIOS Klinikum Bad Saarow, 15526 - Bad Saarow/DE
  • 11 Medizinische Klinik 5, Klinikum Nürnberg Paracelsus Medizinische Privatuniversität, 90419 - Nürnberg/DE
  • 12 Klinik Für Onkologie Und Hämatologie, Hospital Barmherzige Brüder Regensburg, Regensburg/DE
  • 13 Oncologia Medica, Università della Campania "Luigi Vanvitelli", Napoli/IT
  • 14 Oncologia Medica, IRCCS Fondazione Casa Sollievo della Sofferenza, 71013 - San Giovanni Rotondo/IT
  • 15 Institute Of Pathology, University Medical Center Mannheim, Mannheim/DE
  • 16 Institute Of Clinical Cancer Research (ikf) At Krankenhaus Nordwest, UCT-University Cancer Center, 60488 - Frankfurt am Main/DE
  • 17 Medizinische Klinik Ii, Klinikum Wolfsburg, 38440 - Wolfsburg/DE
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Abstract 1424MO

Background

Periop. FLOT has become SOC for resectable, esophagogastric adenocarcinoma (EGA). However, patient’s outcome is still poor. This trial evaluates the addition of the VEGF-R2 inhibitor ramucirumab (RAM) to FLOT.

Methods

This is a prospective, international, randomized, investigator-initiated phase II/III trial. Patients (pts) with resectable, Her2-negative EGA(≥ cT2 or cN+) were randomized to 4 pre-and post-operative cycles of FLOT (docetaxel 50 mg/m2; oxaliplatin 85 mg/m2; leucovorin 200 mg/m2; 5-FU 2600 mg/m2, q2w) alone (Arm A) or FLOT with RAM 8mg/kg q2w, followed by 16 cycles RAM (Arm B, FLOT-RAM). Here, we report the main results along with the subgroup analysis explaining the higher rate of R0-resection in the FLOT-RAM arm.

Results

In total, 180 pts (FLOT, 91; FLOT-RAM, 89) were randomized. Baseline characteristics were similar between arms (male, 73%; median age, 60y; cT3/T4, 83%; cN+, 78%; GEJ, 54%). The rate of signet-ring cell cancer was high (40%). As reported at ASCO, no difference in path response rates was seen (FLOT, 30%; FLOT-RAM, 27%). However, FLOT-RAM significantly improved R0-resection rate (FLOT, 82%; FLOT-RAM, 96%, p=0.0078). This difference was due to less pts in the FLOT-RAM arm with disease progression prior to operation (FLOT, 6%; FLOT-RAM, 1%), more pts proceeding to operation (FLOT, 93%; FLOT-RAM, 97%), more pts receiving resectional surgery (FLOT, 88%; FLOT-RAM, 97%), and less pts having residual tumor out of the resected pts (FLOT, 4; FLOT-RAM, 1). In the subgroup analysis, the relative benefit of FLOT-RAM in terms of R0-resection was seen in all groups but was a bit pronounced in the cT3/T4 group (FLOT, 80%; FLOT-RAM, 97%), specifically the T4 (FLOT, 1/4 [25%]; FLOT-RAM, 8/8 [100%]) and the diffuse/mixed type histology (FLOT, 77%; FLOT-RAM, 95%).

Conclusions

FLOT-RAM significantly improved R0-resection rates in a patient group enriched with diffuse type and signet cell histology, mainly because more pts proceeded to operation, more pts received resectional surgery, and less pts had residual disease. The effects were pronounced in more advanced stage and the diffuse/mixed type histology.

Clinical trial identification

NCT02661971; EudraCT: 2015-003118-26.

Editorial acknowledgement

Legal entity responsible for the study

Institut für Klinische Krebsforschung IKF GmbH.

Funding

Lilly Deutschland GmbH.

Disclosure

S-E. Al-Batran: Advisory/Consultancy, Research grant/Funding (self): Roche; Advisory/Consultancy, Speaker Bureau/Expert testimony, Research grant/Funding (self): Celgene; Advisory/Consultancy, Speaker Bureau/Expert testimony, Research grant/Funding (self): Lilly; Advisory/Consultancy: Bristol-Myers Squibb; Advisory/Consultancy, Research grant/Funding (self): Merck; Advisory/Consultancy, Speaker Bureau/Expert testimony: Nordic Bioscience; Advisory/Consultancy: Merck Sharp & Dohme; Speaker Bureau/Expert testimony: AIO gGmbH; Speaker Bureau/Expert testimony: Forum für Medizinische Fortbildung; Speaker Bureau/Expert testimony: MCI group; Shareholder/Stockholder/Stock options: IKF Klinische Krebsforschung; Research grant/Funding (self): Medac; Research grant/Funding (self): Hospira; Research grant/Funding (self): Sanofi; Research grant/Funding (self): German Cancer Aid ; Research grant/Funding (self): German Research Foundation; Research grant/Funding (self): Federal Ministry of Education and Research; Research grant/Funding (self): Vifor Pharma. R.D. Hofheinz: Honoraria (self), Advisory/Consultancy: Merck Serono ; Honoraria (self), Advisory/Consultancy, Speaker Bureau/Expert testimony: Amgen ; Honoraria (self), Advisory/Consultancy, Speaker Bureau/Expert testimony: Roche; Honoraria (self), Advisory/Consultancy, Speaker Bureau/Expert testimony, Research grant/Funding (institution): Sanofi ; Honoraria (self), Advisory/Consultancy, Speaker Bureau/Expert testimony: Bristol-Myers Squibb ; Honoraria (self), Advisory/Consultancy, Speaker Bureau/Expert testimony: MSD; Honoraria (self), Speaker Bureau/Expert testimony: Lilly; Speaker Bureau/Expert testimony: Merck; Speaker Bureau/Expert testimony: SERVIER ; Honoraria (self), Research grant/Funding (institution): Medac ; Research grant/Funding (institution): German Cancer Aid. E. Goekkurt: Advisory/Consultancy: MSD; Advisory/Consultancy: Servier; Advisory/Consultancy: Bristol-Myers Squibb; Advisory/Consultancy: Roche; Advisory/Consultancy: Sanofi . D. Pink: Advisory/Consultancy, Research grant/Funding (institution): Lilly; Advisory/Consultancy, Research grant/Funding (institution): Clinigen; Advisory/Consultancy, Research grant/Funding (institution): Roche; Research grant/Funding (institution): Novartis; Research grant/Funding (institution): PharmaMar. G.M. Siegler: Travel/Accommodation/Expenses: Novartis; Travel/Accommodation/Expenses: Eisai; Travel/Accommodation/Expenses: Celgene; Travel/Accommodation/Expenses: Sanofi; Travel/Accommodation/Expenses: Roche; Travel/Accommodation/Expenses: Lilly. E. Maiello: Advisory/Consultancy: Astra Zeneca; Advisory/Consultancy: Eli Lilly; Advisory/Consultancy: Servier; Advisory/Consultancy: Sanofi Genzyme; Advisory/Consultancy: Roche; Advisory/Consultancy: Merck; Advisory/Consultancy: Eisai; Advisory/Consultancy: Pfizer. T.O. Götze: Advisory/Consultancy, Speaker Bureau/Expert testimony: Lilly; Advisory/Consultancy: MSD Oncology ; Advisory/Consultancy: Bayer; Advisory/Consultancy: SERVIER ; Advisory/Consultancy: Roche ; Research grant/Funding (self): Deutsche Forschungsgemeinschaft ; Research grant/Funding (self): Gemeinsamer Bundesausschuss . All other authors have declared no conflicts of interest.

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