2020
DOI: 10.1016/j.ctro.2019.12.002
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Nitroglycerin as a radiosensitizer in non-small cell lung cancer: Results of a prospective imaging-based phase II trial

Abstract: a b s t r a c tBackground: Nitroglycerin is proposed as an agent to reduce tumour hypoxia by improving tumour perfusion. We investigated the potential of nitroglycerin as a radio-sensitizer in non-small cell lung cancer (NSCLC) and the potential of functional imaging for patient selection. Material and methods: Trial NCT01210378 is a single arm phase II trial, designed to detect 15% improvement in 2-year overall survival (primary endpoint) in stage IB-IV NSCLC patients treated with radical (chemo-) radiotherap… Show more

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Cited by 13 publications
(10 citation statements)
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“…Although side effects remained manageable (mainly represented by headache, commonly observed with vasodilator treatments), a dedicated phase III trial investigating NTG addition for 5 days with conventional first-line chemotherapy in advanced NSCLC patients was stopped at first interim analysis for non-significance [ 370 ]. Its combination with radiotherapy failed to demonstrate a clinical interest and no additional investigations are currently evaluated for this approach [ 371 ].…”
Section: Hypoxia-related Treatments and Research Developmentmentioning
confidence: 99%
“…Although side effects remained manageable (mainly represented by headache, commonly observed with vasodilator treatments), a dedicated phase III trial investigating NTG addition for 5 days with conventional first-line chemotherapy in advanced NSCLC patients was stopped at first interim analysis for non-significance [ 370 ]. Its combination with radiotherapy failed to demonstrate a clinical interest and no additional investigations are currently evaluated for this approach [ 371 ].…”
Section: Hypoxia-related Treatments and Research Developmentmentioning
confidence: 99%
“…Unfortunately, as accrual was still ongoing, the correlation between change in tumor hypoxia during treatment and the actual treatment outcome could not be assessed. Nevertheless and despite limited evidence, these results suggest that [18F]-HX4 PET can be used to monitor treatment response [20].…”
Section: Monitoring Treatment Response [18f]-hx4 Petmentioning
confidence: 87%
“…In line with these findings, [18F]-HX4 PET has been successfully used to determine treatment response to metformin, an antidiabetic drug with anticancer properties, in animal models of NSCLC and colorectal cancer [66]. In clinical setting, Reymen et al [20] assessed treatment response to nitroglycerin as a potential radiosensitizer using [18F]-HX4 in patients suffering from NSCLC. They found that administration of nitroglycerin did not result in the hypothesized decrease of tumor hypoxia defined as [18F]-HX4 uptake, more indicative of the arguable potential of nitroglycerin as a radiosensitizer.…”
Section: Monitoring Treatment Response [18f]-hx4 Petmentioning
confidence: 99%
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“…This was thought to be due to a decreased hypoxic fraction however levels of hypoxia were not measured (Yasuda et al, 2006). A second phase II trial in NCLS combining nitroglycerin with chemo/ radiotherapy was stopped early when no reduction in tumour hypoxia or increased overall survival was seen (Reymen et al, 2020). The lack of overall survival was in part due to the heterogeneous treatment modalities and small sample size, but this cannot explain the lack of decreased hypoxia.…”
Section: Hypoxia Modificationmentioning
confidence: 99%