Randomized, double‐blind, phase two study of ruxolitinib plus regorafenib in patients with relapsed/refractory metastatic colorectal cancer

Abstract Background The Janus kinase/signal transducer and activator of transcription (JAK‐STAT) signaling pathway plays a key role in the systemic inflammatory response in many cancers, including colorectal cancer (CRC). This study evaluated the addition of ruxolitinib, a potent JAK1/2 inhibitor, t...

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Main Authors: David Fogelman, Antonio Cubillo, Pilar García‐Alfonso, María Luisa Limón Mirón, John Nemunaitis, Daniel Flora, Christophe Borg, Laurent Mineur, Jose M. Vieitez, Allen Cohn, Gene Saylors, Albert Assad, Julie Switzky, Li Zhou, Johanna Bendell
Format: Article
Language:English
Published: Wiley 2018-11-01
Series:Cancer Medicine
Subjects:
Online Access:https://doi.org/10.1002/cam4.1703
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author David Fogelman
Antonio Cubillo
Pilar García‐Alfonso
María Luisa Limón Mirón
John Nemunaitis
Daniel Flora
Christophe Borg
Laurent Mineur
Jose M. Vieitez
Allen Cohn
Gene Saylors
Albert Assad
Julie Switzky
Li Zhou
Johanna Bendell
author_facet David Fogelman
Antonio Cubillo
Pilar García‐Alfonso
María Luisa Limón Mirón
John Nemunaitis
Daniel Flora
Christophe Borg
Laurent Mineur
Jose M. Vieitez
Allen Cohn
Gene Saylors
Albert Assad
Julie Switzky
Li Zhou
Johanna Bendell
author_sort David Fogelman
collection DOAJ
description Abstract Background The Janus kinase/signal transducer and activator of transcription (JAK‐STAT) signaling pathway plays a key role in the systemic inflammatory response in many cancers, including colorectal cancer (CRC). This study evaluated the addition of ruxolitinib, a potent JAK1/2 inhibitor, to regorafenib in patients with relapsed/refractory metastatic CRC. Methods In this two‐part, multicenter, phase 2 study, eligible adult patients had metastatic adenocarcinoma of the colon or rectum; an Eastern Cooperative Oncology Group performance status of 0‐2; received fluoropyrimidine, oxaliplatin, and irinotecan‐based chemotherapy, an anti‐vascular endothelial growth factor therapy (if no contraindication); and if KRAS wild‐type (and no contraindication), an anti‐epidermal growth factor receptor therapy; and progressed following the last administration of approved therapy. Patients who received previous treatment with regorafenib, had an established cardiac or gastrointestinal disease, or had an active infection requiring treatment were excluded. The study was conducted in 95 sites in North America, European Union, Asia Pacific, and Israel. After an open‐label, safety run‐in phase (part 1; ruxolitinib 20 mg twice daily [BID] plus regorafenib 160 mg once daily [QD]), the double‐blind, randomized phase (part 2) was conducted wherein patients were randomized 1:1 to receive ruxolitinib 15 mg BID plus regorafenib 160 mg QD [ruxolitinib group] or placebo plus regorafenib 160 mg QD [placebo group]. Part 2 included substudy 1 (patients with high systemic inflammation, ie, C‐reactive protein [CRP] >10 mg/L) and substudy 2 (patients with low systemic inflammation, ie, CRP ≤10 mg/L); the primary endpoint was overall survival (OS). Results The study was terminated early; substudy 1 was terminated for futility at interim analysis and substudy 2 was terminated per sponsor decision. Ruxolitinib 20 mg BID was well tolerated in the safety run‐in (n = 11). Overall, 396 patients were randomized (substudy 1: n = 175 [ruxolitinib group, n = 87; placebo group, n = 88]; substudy 2: n = 221 [ruxolitinib group, n = 110; placebo group, n = 111]). There was no significant difference in OS or progression‐free survival (PFS) between treatments in substudy 1 (OS: hazard ratio [HR] = 1.040 [95% confidence interval: 0.725‐1.492]; PFS: HR = 1.004 [0.724‐1.391]) and substudy 2 (OS: HR = 0.767 [0.478‐1.231]; PFS: HR = 0.787 [0.576‐1.074]). The most common hematologic adverse event was anemia. No new safety signals with ruxolitinib were identified. Conclusions Although addition of ruxolitinib to regorafenib did not show increased safety concerns in patients with relapsed/refractory metastatic CRC, this combination did not improve OS/PFS vs. regorafenib plus placebo.
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spelling doaj.art-83944eb504bf49ddba72860007a550e72023-09-19T11:30:57ZengWileyCancer Medicine2045-76342018-11-017115382539310.1002/cam4.1703Randomized, double‐blind, phase two study of ruxolitinib plus regorafenib in patients with relapsed/refractory metastatic colorectal cancerDavid Fogelman0Antonio Cubillo1Pilar García‐Alfonso2María Luisa Limón Mirón3John Nemunaitis4Daniel Flora5Christophe Borg6Laurent Mineur7Jose M. Vieitez8Allen Cohn9Gene Saylors10Albert Assad11Julie Switzky12Li Zhou13Johanna Bendell14The University of Texas MD Anderson Cancer Center Houston TexasCentro Integral Oncológico Clara Campal Madrid SpainHospital General Universitario Gregorio Marañón Madrid SpainHospital Universitario Virgen del Rocío Sevilla SpainUniversity of Toledo College of Medicine and Life Sciences Toledo OhioOncology Hematology Care Cincinnati OhioUniversity Hospital of Besançon Besançon FranceInstitut Sainte Catherine Avignon FranceHospital Universitario Central de Asturias Oviedo SpainRocky Mountain Cancer Centers Denver ColoradoCharleston Hematology Oncology Associates Charleston South CarolinaIncyte Corporation Wilmington, DelawareIncyte Corporation Wilmington, DelawareIncyte Corporation Wilmington, DelawareSarah Cannon Research Institute/Tennessee Oncology Nashville TennesseeAbstract Background The Janus kinase/signal transducer and activator of transcription (JAK‐STAT) signaling pathway plays a key role in the systemic inflammatory response in many cancers, including colorectal cancer (CRC). This study evaluated the addition of ruxolitinib, a potent JAK1/2 inhibitor, to regorafenib in patients with relapsed/refractory metastatic CRC. Methods In this two‐part, multicenter, phase 2 study, eligible adult patients had metastatic adenocarcinoma of the colon or rectum; an Eastern Cooperative Oncology Group performance status of 0‐2; received fluoropyrimidine, oxaliplatin, and irinotecan‐based chemotherapy, an anti‐vascular endothelial growth factor therapy (if no contraindication); and if KRAS wild‐type (and no contraindication), an anti‐epidermal growth factor receptor therapy; and progressed following the last administration of approved therapy. Patients who received previous treatment with regorafenib, had an established cardiac or gastrointestinal disease, or had an active infection requiring treatment were excluded. The study was conducted in 95 sites in North America, European Union, Asia Pacific, and Israel. After an open‐label, safety run‐in phase (part 1; ruxolitinib 20 mg twice daily [BID] plus regorafenib 160 mg once daily [QD]), the double‐blind, randomized phase (part 2) was conducted wherein patients were randomized 1:1 to receive ruxolitinib 15 mg BID plus regorafenib 160 mg QD [ruxolitinib group] or placebo plus regorafenib 160 mg QD [placebo group]. Part 2 included substudy 1 (patients with high systemic inflammation, ie, C‐reactive protein [CRP] >10 mg/L) and substudy 2 (patients with low systemic inflammation, ie, CRP ≤10 mg/L); the primary endpoint was overall survival (OS). Results The study was terminated early; substudy 1 was terminated for futility at interim analysis and substudy 2 was terminated per sponsor decision. Ruxolitinib 20 mg BID was well tolerated in the safety run‐in (n = 11). Overall, 396 patients were randomized (substudy 1: n = 175 [ruxolitinib group, n = 87; placebo group, n = 88]; substudy 2: n = 221 [ruxolitinib group, n = 110; placebo group, n = 111]). There was no significant difference in OS or progression‐free survival (PFS) between treatments in substudy 1 (OS: hazard ratio [HR] = 1.040 [95% confidence interval: 0.725‐1.492]; PFS: HR = 1.004 [0.724‐1.391]) and substudy 2 (OS: HR = 0.767 [0.478‐1.231]; PFS: HR = 0.787 [0.576‐1.074]). The most common hematologic adverse event was anemia. No new safety signals with ruxolitinib were identified. Conclusions Although addition of ruxolitinib to regorafenib did not show increased safety concerns in patients with relapsed/refractory metastatic CRC, this combination did not improve OS/PFS vs. regorafenib plus placebo.https://doi.org/10.1002/cam4.1703clinical trialcolorectal cancerinflammationJAK1 protein tyrosine kinaseJAK2 protein tyrosine kinaseruxolitinib
spellingShingle David Fogelman
Antonio Cubillo
Pilar García‐Alfonso
María Luisa Limón Mirón
John Nemunaitis
Daniel Flora
Christophe Borg
Laurent Mineur
Jose M. Vieitez
Allen Cohn
Gene Saylors
Albert Assad
Julie Switzky
Li Zhou
Johanna Bendell
Randomized, double‐blind, phase two study of ruxolitinib plus regorafenib in patients with relapsed/refractory metastatic colorectal cancer
Cancer Medicine
clinical trial
colorectal cancer
inflammation
JAK1 protein tyrosine kinase
JAK2 protein tyrosine kinase
ruxolitinib
title Randomized, double‐blind, phase two study of ruxolitinib plus regorafenib in patients with relapsed/refractory metastatic colorectal cancer
title_full Randomized, double‐blind, phase two study of ruxolitinib plus regorafenib in patients with relapsed/refractory metastatic colorectal cancer
title_fullStr Randomized, double‐blind, phase two study of ruxolitinib plus regorafenib in patients with relapsed/refractory metastatic colorectal cancer
title_full_unstemmed Randomized, double‐blind, phase two study of ruxolitinib plus regorafenib in patients with relapsed/refractory metastatic colorectal cancer
title_short Randomized, double‐blind, phase two study of ruxolitinib plus regorafenib in patients with relapsed/refractory metastatic colorectal cancer
title_sort randomized double blind phase two study of ruxolitinib plus regorafenib in patients with relapsed refractory metastatic colorectal cancer
topic clinical trial
colorectal cancer
inflammation
JAK1 protein tyrosine kinase
JAK2 protein tyrosine kinase
ruxolitinib
url https://doi.org/10.1002/cam4.1703
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