Application of a decision analytic framework for adoption of clinical trial results: Are the data regarding TARGIT-A IORT ready for prime time?
Breast Cancer Research and Treatment, ISSN: 1573-7217, Vol: 144, Issue: 2, Page: 371-378
2014
- 13Citations
- 64Captures
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Metrics Details
- Citations13
- Citation Indexes13
- 13
- CrossRef9
- Captures64
- Readers64
- 64
Article Description
The results from randomized clinical trials are often adopted slowly. This practice potentially prevents many people from benefiting from more effective care. Provide a framework for analyzing clinical trial results to determine whether and when early adoption of novel interventions is appropriate. The framework includes the evaluation of three components: confidence in trial results, impact of early, and late adoption if trial results are reversed or sustained. The adverse impact of early adoption, and the opportunity cost of late adoption are determined using Markov modeling to simulate the impact of early and late adoption in terms of quality of life years and resources gained or lost. We applied the framework to the TARGIT-A randomized clinical trial comparing intraoperative radiation (IORT) to standard external beam radiation (EBRT) and considered these results in the context of trials comparing endocrine therapy with and without radiation therapy in postmenopausal women. Confidence in the TARGIT-A trial 4 year results is high because the peak hazard for local recurrence in the trial is between 2 and 3 years. This is consistent with most trials, and no second peak has been observed in similar patient populations, suggesting that the TARGIT-A trial results are stable. The interventions offer approximately equivalent life expectancy. If IORT local recurrences rate were as high as 10 % at 10 years (which is higher than expected), we would project only 0.002 fewer expected life years (less than 1 day) compared to EBRT if IORT is adopted early. However, there is a $1.7 billion opportunity cost of waiting an additional 5 years to adopt IORT in low risk, hormone-receptor- positive, postmenopausal women. EBRT costs an additional $1467 in indirect costs per patient. Applying an evaluative framework for the adoption of clinical trial results to the TARGIT-A IORT therapy trial results in the assessment that the trial results are stable, early adoption would lead to minimal adverse impact, and substantially less resource use. Both IORT and no radiation are reasonable strategies to adopt. © 2014 The Author(s).
Bibliographic Details
http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=84896542559&origin=inward; http://dx.doi.org/10.1007/s10549-014-2881-2; http://www.ncbi.nlm.nih.gov/pubmed/24584875; http://link.springer.com/10.1007/s10549-014-2881-2; https://dx.doi.org/10.1007/s10549-014-2881-2; https://link.springer.com/article/10.1007/s10549-014-2881-2
Springer Science and Business Media LLC
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