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A single-arm phase II trial of combined chemotherapy with S-1, oral leucovorin, and bevacizumab in heavily pre-treated patients with metastatic colorectal cancer

Overview of attention for article published in BMC Cancer, August 2015
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Title
A single-arm phase II trial of combined chemotherapy with S-1, oral leucovorin, and bevacizumab in heavily pre-treated patients with metastatic colorectal cancer
Published in
BMC Cancer, August 2015
DOI 10.1186/s12885-015-1606-1
Pubmed ID
Authors

Kazuhisa Yamaguchi, Hiroya Taniguchi, Azusa Komori, Yukiya Narita, Sohei Nitta, Motoo Nomura, Shigenori Kadowaki, Daisuke Takahari, Takashi Ura, Masashi Andoh, Kei Muro, Keita Mori, Yoshinori Igarashi

Abstract

The mean 5-6-month survival after failed standard chemotherapy for metastatic colorectal cancer (mCRC) necessitates more effective treatments for refractory mCRC. For untreated mCRC, S-1 + oral leucovorin (SL) therapy offers promising results without severe toxicity. The ML18147 trial demonstrated that bevacizumab (Bev) prolongs overall survival after mCRC progression. We conducted a single-centre phase-II trial to evaluate the safety and efficacy of SL/Bev combination chemotherapy as mCRC salvage therapy. Major eligibility criteria were confirmed adenocarcinoma diagnosis; age >20 years; Eastern Cooperative Oncology Group performance status, 0-2; and progression after administration/intolerance of/to approved drugs for mCRC. (5-FU, oxaliplatin, irinotecan, Bev, and anti-EGFR antibody, if KRAS wild-type). S-1 (80-120 mg/body) and leucovorin (25 mg) were orally administered in a 1-week-on/1-week-off schedule. Bev (5 mg/kg) was administered on day 1 of every 2-week cycle. The primary endpoint was disease control rate (DCR). A total of 31 patients were enrolled. DCR was 65 % [95 % confidence interval (CI), 48-100 %] and the response rate was 7 % (95 % CI, 0.7-22 %). One patient showing partial response to SL/Bev had a BRAF-mutant tumor. Median progression-free survival and overall survivals were 5.3 [95 % CI, 2.1-9.3] and 9.9 [95 % CI, 7.4-NA] months, respectively. The most-frequent grade-3/4 adverse events were mucositis (26 %) and diarrhea (11 %), which were manageable by dose reduction/interruption. SL/Bev showed impressive activity in refractory mCRC and was tolerable, suggesting its potential as an alternative chemotherapy for refractory mCRC. This study has been registered in University Hospital Medical Information Network (UMIN) Clinical Trials Registry ( ID UMIN000009083 ) on 11 October 2012.

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The data shown below were collected from the profiles of 3 X users who shared this research output. Click here to find out more about how the information was compiled.
Mendeley readers

Mendeley readers

The data shown below were compiled from readership statistics for 35 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
Unknown 35 100%

Demographic breakdown

Readers by professional status Count As %
Other 7 20%
Student > Bachelor 6 17%
Student > Master 4 11%
Lecturer 3 9%
Student > Doctoral Student 3 9%
Other 5 14%
Unknown 7 20%
Readers by discipline Count As %
Medicine and Dentistry 18 51%
Nursing and Health Professions 3 9%
Biochemistry, Genetics and Molecular Biology 2 6%
Pharmacology, Toxicology and Pharmaceutical Science 2 6%
Unspecified 1 3%
Other 2 6%
Unknown 7 20%
Attention Score in Context

Attention Score in Context

This research output has an Altmetric Attention Score of 2. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 27 August 2015.
All research outputs
#13,953,851
of 22,826,360 outputs
Outputs from BMC Cancer
#3,194
of 8,302 outputs
Outputs of similar age
#133,580
of 267,486 outputs
Outputs of similar age from BMC Cancer
#46
of 142 outputs
Altmetric has tracked 22,826,360 research outputs across all sources so far. This one is in the 37th percentile – i.e., 37% of other outputs scored the same or lower than it.
So far Altmetric has tracked 8,302 research outputs from this source. They receive a mean Attention Score of 4.3. This one has gotten more attention than average, scoring higher than 59% of its peers.
Older research outputs will score higher simply because they've had more time to accumulate mentions. To account for age we can compare this Altmetric Attention Score to the 267,486 tracked outputs that were published within six weeks on either side of this one in any source. This one is in the 48th percentile – i.e., 48% of its contemporaries scored the same or lower than it.
We're also able to compare this research output to 142 others from the same source and published within six weeks on either side of this one. This one has gotten more attention than average, scoring higher than 63% of its contemporaries.