Prof Tan was one of the authors of a paper published in the Frontiers In Oncology journal in May 2024, comparing the outcomes for breast cancer patients who had undergone NGS at NCIS.
Those who had targeted therapy experienced better progression-free and overall survival compared with patients who did not receive targeted therapy.
“Our ability to identify patients with rare or common mutations, who may benefit from novel targeted treatments that can be matched to their tumour mutation profiles, has enabled us to initiate trials of novel therapies in Singapore and has led to direct patient benefit,” said Prof Tan.
He added: “NGS is increasingly relevant across a broad spectrum of cancers, but its value extends beyond late-stage cancers and can benefit patients with early-stage cancer as well.”
Patients with early-stage endometrial cancers with a particular mutation would be offered additional chemotherapy, as this has been shown to reduce disease relapse and improve survival.
However, patients who have a different mutation which is associated with excellent outcomes would not need any additional chemotherapy or radiotherapy.
Knowing this would spare them the cost and toxicity of these treatments.
Said Prof Kanesvaran: “While NGS has demonstrated potential as a tool that improves our understanding of a patient’s tumour characteristics, it is inaccurate to say that its widespread implementation will have any impact on a nation’s overall cancer mortality.”
Prof Tan agrees that there are other reasons for the relatively high deaths among cancer patients here, such as lower cancer screening rates leading to later diagnosis.
He added that there are also “lifestyle-related risk factors like obesity, smoking and excessive alcohol consumption, which can impact both the incidence of cancer and the patient’s fitness to receive treatment, as well as individual socio-economic factors that may present barriers to accessing cancer care”.