Abstract
Background
A meta-analysis of published data was conducted to investigate the overall risks of hypertension and QTc prolongation in patients with advanced non-small cell lung cancer (NSCLC) who were receiving vandetanib.
Methods
A computerized search through electronic databases, including PubMed and Embase (until Dec 2014), was performed to obtain eligible randomized controlled trials (RCTs) that compared hypertension and/or QTc prolongation profile of vandetanib alone or plus chemotherapy with control groups (placebo, single targeted therapy, chemotherapy, or a combination of them) in patients with advanced NSCLC. The outcome measures were the overall risks of hypertension and QTc prolongation. Relative risk (RR) and 95 % confidence interval (CI) were calculated and pooled using a random effects model.
Results
A total of nine RCTs, which involved 4813 patients, were enrolled in the present study. A significant increase in risk was observed for all-grade hypertension (RR 5.58; 95 % CI 4.16 to 7.48; P < 0.00001) and grade ≥3 hypertension (RR 4.79; 95 % CI 2.31 to 9.93; P < 0.0001) in advanced NSCLC patients who were receiving vandetanib compared with the controls. Moreover, vandetanib significantly prolonged all-grade QTc interval (RR 7.90; 95 % CI 4.03 to 15.50; P < 0.00001) and grade ≥3 QTc interval (RR 3.12; 95 % CI 1.01 to 9.63; P = 0.05).
Conclusions
Current evidence showed that significant risks in developing hypertension and QTc prolongation exist in advanced NSCLC patients who were receiving vandetanib. Thus, appropriate monitoring and management of these events are recommended.
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Conflict of interest
The authors have no competing interests to declare.
Grant support
The study received support from National Natural Science Foundation of China (General Program, no. 81170007; 81370104) and Fok Ying-Tong Education Foundation, China (no. 131039).
Location of the study
The study was performed at Chinese PLA General Hospital and Chinese PLA Air Force General Hospital, Beijing, China.
Author contributions
Ying Liu and Yi Liu were responsible for article search, acquisition of data, data analysis, and first drafting. Zai-Wen Fan and Jian Li were responsible for acquisition of data, data analysis, and revision of the article. Guo-Gang Xu was responsible for the study design, interpretation of data, critical appraisal, and revision of the article. All the authors were responsible for the final approval of the version to be published.
Ethical standards
Ethics approval was not necessary as this is a meta-analysis.
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Additional information
Ying Liu and Yi Liu contributed equally to this work.
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Table S1
Description of the grades of hypertension and QTc prolongation according to CTC v2.0 and CTCAE v3.0 (DOC 32 kb)
Table S2
Risks of all-grade hypertension and QTc prolongation in each of the previous meta-analyses (DOC 39 kb)
Table S3
Subgroup analyses based on various exclusion criteria for the risk of hypertension (DOC 50 kb)
Table S4
Subgroup analyses based on various exclusion criteria for the risk of QTc interval (DOC 51 kb)
Figure S1
Meta-analysis of the risks of high-grade hypertension and QTc prolongation among all RCTs (GIF 137 kb)
Figure S2
Publication bias for hypertension (A) and QTc prolongation (B) (GIF 30 kb)
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Liu, Y., Liu, Y., Fan, ZW. et al. Meta-analysis of the risks of hypertension and QTc prolongation in patients with advanced non-small cell lung cancer who were receiving vandetanib. Eur J Clin Pharmacol 71, 541–547 (2015). https://doi.org/10.1007/s00228-015-1831-1
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DOI: https://doi.org/10.1007/s00228-015-1831-1