EUnetHTA Joint-Action 1. HTA Core Model Application for Diagnostic Technologies (1.1). Prognostic tests for breast cancer recurrence (uPA/PAI-1 [FEMTELLE], MammaPrint, Oncotype DX). Ethical analysis

Dario Sacchini, Pietro Refolo, Roberta Minacori

Risultato della ricerca: Altra tipologiaOther contribution

Abstract

From the ethical point of view, the foundation of any medical act – including the utilisation of prognostic tests for breast cancer recurrence (PTBCRs) – is the evaluation of (and respect for) the clinical (diagnostic/therapeutic) benefit for patients. At the moment, the available literature shows the following. In this context, clinical utility is the likelihood that using a PTBCR to guide management in patients with diagnosed early-stage breast cancer will significantly improve health-related outcomes. Clinical utility is assessed by investigating the balance of benefits (reduced adverse events due to low-risk women avoiding chemotherapy) and harms (cancer recurrence that might have been prevented) associated with the use of the test compared with the use of alternative management strategies. Direct evidence was not found linking any of the three tests to improved outcomes, but there are studies about the components of clinical utility that might provide indirect evidence for clinical utility. There is encouraging indirect evidence for Oncotype DX®, and plausibility for potential use of MammaPrint® and, possibly, the uPA/PAI-1 test. It seems plausible that more women will benefit (i.e., to avoid unnecessary chemotherapy), but there is the potential for significant harms among a small number of low or intermediate risk women (who might have benefited from chemotherapy) who are moved to a lower level of risk as a result of using these tests, possibly resulting in breast cancer recurrence or death. There are currently insufficient data to confidently estimate these risks and benefits. In addition, it is difficult to determine the proportion of women with moderate to high risk, based on conventional risk assessments, that will have a “low enough” score to affect their decision about chemotherapy. These new tests raise the question of the extent to which patients are prepared to participate in informed decision making about their care. Information from these tests about the risk of breast cancer recurrence should play a significant role in women’s breast cancer treatment decisions. But few studies indicate whether patients understand genomic and similar tests and their results adequately to be informed decision makers when using them. The results of the studies underscore the comparative weight that participants placed on their physicians’ recommendations and the importance of patient education regarding how clinicians incorporate genomic risk of recurrence information into treatment decision-making. Indeed, the value placed on testing by the physician and how this is conveyed will likely be critical to patients’ decision-making processes. Some studies show that health literacy is fundamental to understanding women’s capacity to learn about the new PTBCRs as well as their desire for active participation in medical care: women with lower health literacy recalled less of the information provided about the recurrence risk test than women with higher health literacy. Studies show that most patients prefer to be involved in medical decisions that affect their care and that patients who are active participants in their medical decisions are better adjusted psychologically, report being more satisfied with their decisions, and are more likely to adhere to their treatment regimens. These new tests raise important new issues for the clinicians about how to communicate with patients about their recurrence risks. Acknowledgement by clinicians of the potential problems and subsequent clarification of any misconceptions should prevent or relieve patients’ anxiety and help them to cope with the situation. Physicians should explain the difference between genomic signatures and genetic testing, the clinical meaning of the result of the test with the standard clinicopathological criteria and the expressions that relate to technical problems of these tests. Improving the quality of the in
Lingua originaleEnglish
Stato di pubblicazionePubblicato - 2013

Keywords

  • ethics
  • health techynology assessment
  • prognostic tests for breast cancer

Fingerprint Entra nei temi di ricerca di 'EUnetHTA Joint-Action 1. HTA Core Model Application for Diagnostic Technologies (1.1). Prognostic tests for breast cancer recurrence (uPA/PAI-1 [FEMTELLE], MammaPrint, Oncotype DX). Ethical analysis'. Insieme formano una fingerprint unica.

Cita questo