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Gemcitabine Combined with the mTOR Inhibitor Temsirolimus in Patients with Locally Advanced or Metastatic Pancreatic Cancer. A Hellenic Cooperative Oncology Group Phase I/II Study.

Abstract：

BACKGROUND:The prognosis of patients with advanced pancreatic cancer is dismal, and there is a need for novel and effective treatments. OBJECTIVES:Tο determine the maximum tolerated dose (MTD) and dose-limiting toxicities (DLTs) of a novel gemcitabine (G) and temsirolimus (T) combination (phase I) and estimate the 6-month progression-free survival (PFS) in patients treated with the T + G combination (phase II). PATIENTS AND METHODS:Eligible patients with histologically confirmed inoperable or metastatic pancreatic carcinoma (MPC) were entered into the trial. G was given bi-weekly and T weekly in a 4-week cycle. The first dose level was set at G 800 mg/m2 and T 10 mg. G was escalated in increments of 200 mg/m2 and T in increments of 5 mg until DLT was reached, and the recommended dose was used for the phase II part. RESULTS:Thirty patients were enrolled in the phase I component at the pre-planned six dose levels; one bilirubin DLT of grade III occurred at the first dose level. The MTD was established as the approved doses of both drugs. Fifty-five patients were entered into the phase II component. Median relative dose intensities administered in the first cycle were 0.75 for T and 0.99 for G. Grade 3-4 hematological toxicities were recorded in 87.3% of patients. The most common non-hematological adverse events were metabolic disorders (81.8%) followed by gastrointestinal disorders (63.6%). Median PFS was 2.69 months (95% CI 1.74-4.95) and median OS was 4.95 months (95% CI 3.54-6.85), while the 6-month PFS rate was 30.9%. CONCLUSIONS:Combination of G and T is feasible in patients with locally advanced or MPC with manageable side effects, but lacks clinical efficacy. The study was registered in the Australian New Zealand Clinical Trials Registry (ACTRN12611000643976).

journal_name

Target Oncol

journal_title

Targeted oncology

authors

Karavasilis V,Samantas E,Koliou GA,Kalogera-Fountzila A,Pentheroudakis G,Varthalitis I,Linardou H,Rallis G,Skondra M,Papadopoulos G,Papatsibas G,Sgouros J,Goudopoulou A,Kalogeras KT,Dervenis C,Pectasides D,Fountzilas G

doi

10.1007/s11523-018-0605-y

subject

Has Abstract

pub_date

2018-12-01 00:00:00

pages

715-724

issue

eissn

1776-2596

issn

1776-260X

pii

10.1007/s11523-018-0605-y

journal_volume

pub_type

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Gemcitabine Combined with the mTOR Inhibitor Temsirolimus in Patients with Locally Advanced or Metastatic Pancreatic Cancer. A Hellenic Cooperative Oncology Group Phase I/II Study.