TY - JOUR
T1 - Randomized Controlled Trials in Lung, Gastrointestinal, and Breast Cancers
T2 - An Overview of Global Research Activity
AU - Connor Wells, J.
AU - Fundytus, Adam
AU - Sharma, Shubham
AU - Hopman, Wilma M.
AU - Del Paggio, Joseph C.
AU - Gyawali, Bishal
AU - Mukherji, Deborah
AU - Hammad, Nazik
AU - Pramesh, C. S.
AU - Aggarwal, Ajay
AU - Sullivan, Richard
AU - Booth, Christopher M.
N1 - Funding Information:
Our findings related to the growing role of industry in funding cancer clinical trials are consistent with our prior work. We have previously described that the proportion of breast, colorectal, and non-small cell lung cancer systemic therapy trials funded by industry increased from 4% in 1975–1984 to 78% in 2005–2009 [8]. Historically, a larger proportion of RCTs were funded by government grants [7]. The reasons for this substantial shift in RCT funding are multifactorial and likely reflect a decreased availability of government grants, high costs of cancer medicines incentivizing industry, and the increased complexity and expense associated with drug development and conducting contemporary RCTs [32,33].
Publisher Copyright:
© 2022 by the authors. Licensee MDPI, Basel, Switzerland.
PY - 2022/4
Y1 - 2022/4
N2 - Background: In this study, we compared and contrasted design characteristics, results, and publications of randomized controlled trials (RCTs) in gastrointestinal (GI), lung, and breast cancer. Methods: A PUBMED search identified phase III RCTs of anticancer therapy in GI, lung, and breast cancer published globally during the period 2014–2017. Descriptive statistics, chi-square tests, and the Kruskal–Wallis test were used to compare RCT design, results, and output across the cancer sites. Results: A total of 352 RCTs were conducted on GI (36%), lung (29%), and breast (35%) cancer. Surrogate endpoints were used in 55% of trials; this was most common in breast trials (72%) compared to GI (47%) and lung trials (43%, p < 0.001). Breast trials more often met their primary endpoint (54%) than GI (41%) and lung trials (41%) (p = 0.024). When graded with the ESMO-MCBS, lung cancer trials (50%, 15/30) were more likely to meet the threshold for substantial benefit. GI trials were published in journals with a substantially lower impact factor (IF; median IF 13) than lung (median IF 21) and breast cancer trials (median IF 21) (p = 0.038). Conclusions: Important differences in RCT design and output exist between the three major cancer sites. Use of surrogate endpoints and the magnitude of benefit associated with new treatments vary substantially across cancer sites.
AB - Background: In this study, we compared and contrasted design characteristics, results, and publications of randomized controlled trials (RCTs) in gastrointestinal (GI), lung, and breast cancer. Methods: A PUBMED search identified phase III RCTs of anticancer therapy in GI, lung, and breast cancer published globally during the period 2014–2017. Descriptive statistics, chi-square tests, and the Kruskal–Wallis test were used to compare RCT design, results, and output across the cancer sites. Results: A total of 352 RCTs were conducted on GI (36%), lung (29%), and breast (35%) cancer. Surrogate endpoints were used in 55% of trials; this was most common in breast trials (72%) compared to GI (47%) and lung trials (43%, p < 0.001). Breast trials more often met their primary endpoint (54%) than GI (41%) and lung trials (41%) (p = 0.024). When graded with the ESMO-MCBS, lung cancer trials (50%, 15/30) were more likely to meet the threshold for substantial benefit. GI trials were published in journals with a substantially lower impact factor (IF; median IF 13) than lung (median IF 21) and breast cancer trials (median IF 21) (p = 0.038). Conclusions: Important differences in RCT design and output exist between the three major cancer sites. Use of surrogate endpoints and the magnitude of benefit associated with new treatments vary substantially across cancer sites.
KW - breast
KW - cancer
KW - design
KW - gastrointestinal
KW - lung
KW - outcomes
KW - randomized controlled trial
UR - http://www.scopus.com/inward/record.url?scp=85128698422&partnerID=8YFLogxK
U2 - 10.3390/curroncol29040207
DO - 10.3390/curroncol29040207
M3 - Article
C2 - 35448181
AN - SCOPUS:85128698422
SN - 1718-7729
VL - 29
SP - 2530
EP - 2538
JO - Current Oncology
JF - Current Oncology
IS - 4
ER -