2. Academic Validation
  3. A randomized phase II trial of nab-paclitaxel and gemcitabine with tarextumab or placebo in patients with untreated metastatic pancreatic cancer

A randomized phase II trial of nab-paclitaxel and gemcitabine with tarextumab or placebo in patients with untreated metastatic pancreatic cancer

  • Cancer Med. 2019 Sep;8(11):5148-5157. doi: 10.1002/cam4.2425.
Zishuo Ian Hu 1,  Johanna C Bendell 2,  Andrea Bullock 3,  Noelle K LoConte 4,  Hassan Hatoum 5,  Paul Ritch 6,  Hugo Hool 7,  Joseph W Leach 8,  James Sanchez 9,  Davendra P S Sohal 10,  John Strickler 11,  Ravindranath Patel 12,  Andrea Wang-Gillam 13,  Irfan Firdaus 14,  Kenneth H Yu 1 15 16,  Ann M Kapoun 17,  Eric Holmgren 17,  Lei Zhou 17,  Jakob Dupont 17,  Vincent Picozzi 18,  Vaibhav Sahai 19,  Eileen M O'Reilly 1 15 16
Affiliations

Affiliations

  • 1 Memorial Sloan Kettering Cancer Center, New York, New York.
  • 2 Sarah Cannon Research Institute/Tennessee Oncology, Nashville, Tennessee.
  • 3 Beth Israel Deaconess Medical Center, Boston, Massachusetts.
  • 4 University of Wisconsin, Cancer Center, Madison, Wisconsin.
  • 5 University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma.
  • 6 Froedtert Hospital and Medical College of Wisconsin, Milwaukee, Wisconsin.
  • 7 Torrance Memorial Physician Network, Redondo Beach, California.
  • 8 Virginia Piper Cancer Institute, Minneapolis, Minnesota.
  • 9 Comprehensive Cancer Centers of Nevada, Henderson, Nevada.
  • 10 Cleveland Clinic, Cleveland, Ohio.
  • 11 Duke University, Durham, North Carolina.
  • 12 Comprehensive Blood and Cancer Center, Bakersfield, California.
  • 13 Washington University School of Medicine, Saint Louis, Missouri.
  • 14 Oncology Hematology Cancer, Inc., Cincinnati, Ohio.
  • 15 David M. Rubenstein Center for Pancreatic Cancer Research, New York, New York.
  • 16 Department of Medicine, Weill Cornell Medical College, New York, New York.
  • 17 Oncomed Pharmaceuticals Inc, Redwood City, California.
  • 18 Virginia Mason Medical Center, Seattle, Washington.
  • 19 University of Michigan, Ann Arbor, Michigan.
PMID: 31347292 DOI: 10.1002/cam4.2425
Abstract

Purpose: Notch signaling dysregulation is implicated in the development of pancreatic adenocarcinoma (PDAC). Tarextumab is a fully human IgG2 antibody that inhibits Notch2/3 receptors.

Patients and methods: Aphase 2, randomized, placebo-controlled, multicenter trial evaluated the activity of tarextumab in combination with nab-paclitaxel and gemcitabine in patients with metastatic PDAC. Patients were stratified based on ECOG performance score and CA 19-9 level and randomized 1:1 to nab-paclitaxel, gemcitabine with either tarextumab or placebo. Based on preclinical and phase Ib results suggesting a positive correlation between Notch3 gene expression and tarextumab anti-tumor activity, patients were also divided into subgroups of low, intermediate, and high Notch3 gene expression. Primary endpoint was overall survival (OS) in all and in patients with the three Notch3 gene expression subgroups (≥25th, ≥50% and ≥75% percentiles); secondary end points included progression-free survival (PFS), 12-month OS, overall response rate (ORR), and safety and biomarker investigation.

Results: Median OS was 6.4 months in the tarextumab group vs 7.9 months in the placebo group (HR = 1.34 [95% CI = 0.95, 1.89], P = .0985). No difference observed in OS in the Notch3 gene expression subgroups. PFS in the tarextumab-treated group (3.7 months) was significantly shorter compared with the placebo group (5.5 months) (hazard ratio was 1.43 [95% CI = 1.01, 2.01]; P = .04). Grade 3 diarrhea and thrombocytopenia were more common in the tarextumab group.

Conclusions: The addition of tarextumab to nab-paclitaxel and gemcitabine did not improve OS, PFS, or ORR in first-line metastatic PDAC, and PFS was specifically statistically worse in the tarextumab-treated patients.

Clinical trial registry no: NCT01647828.

Keywords

Notch 2/3 receptor inhibitor; Pancreatic cancer; cancer stem cell; gemcitabine; nab-paclitaxel; tarextumab.

Figures
Products
  • Cat. No.
    Product Name
    Description
    Target
    Research Area
  • HY-P99320
    抗Notch2/3单克隆抗体
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