ATA issues guidelines for anaplastic thyroid cancer management

Richard T. Kloos, MD

ATC is a rare, rapidly growing and [usually] fatal disease. Few physicians have personal expertise, and the published literature tends to be of low quality. Thus, when a patient presents at their doorstep, unfamiliar physicians are ill equipped to manage the disease.

The ATA brought together experts from a range of disciplines that synthesize the published literature and combine it with their clinical experience to thoughtfully guide physicians through the complexities of an ATC diagnosis, evaluation, staging and the establishment of treatment goals. This latest endeavor includes disclosing the patient’s status in a realistic way, including a discussion of treatment risks and benefits, the discussion of patient values and preferences, and the eventual making of an informed decision.  

Unfortunately, physicians see patients in their best condition at the time of the first appointment, as most patients with ATC progressively decline in health and die from the disease in less than 6 months. Therefore, important decisions are needed quickly to address the remainder of their life. The document includes important sections of surrogate decision making, truth telling, advanced directives, airway management, maintenance of nutrition and palliative care/hospice.

This is the first set of comprehensive guidelines on this topic, and Dr. Smallridge and the ATA Task Force are to be congratulated for creating such a thoughtful and extensive document. Readers should quickly appreciate that to treat these patients they need to have an awaiting comprehensive multidisciplinary treatment team on-site to receive such patients, in addition to a group that can review this document to discuss their institutional approach moving forward. Conversely, physicians need to know how and where to rapidly transfer patients into the care of such a team.

Historically, guidelines have improved patient care in the short term by educating physicians and guiding patient care. In the long term, guidelines improve patient care by driving research. Gaps in the medical literature are identified and disagreements over strategies can be appropriately studied to strengthen the evidence base and to change patient care. We all hope that this is the case for ATC, and this document sets the benchmark for optimal care in 2012.

Tobenna Nwizu, MD

These are the first extensive guidelines we have on anaplastic thyroid cancer. Because anaplastic carcinoma is rare there are paucity of randomized prospective clinical trials to guide our management. Other more common malignancies like lung cancer and breast cancer have well defined guidelines as a result of multiple clinical trials that provide evidence-based recommendations. These guidelines are very helpful in that respect.

The guidelines were developed by the American Thyroid Association, and consist of 65 recommendations which focus on obtaining the right diagnosis, the appropriate initial evaluation, establishing treatment goals, controlling locoregional disease and management of metastatic disease. These recommendations were made after a literature review was done on over 2,000 articles, with input from respectable head and neck cancer organizations.

ATC has a very abysmal prognosis, with a median survival of 5 months and 1-year overall survival of 20%. It is key that the right histopathologic diagnosis is made with appropriate immunostaining to exclude other less aggressive and treatable malignancies that mimic ATC.

The next aspect of the recommendation involves evaluating for the extent of disease and possible complications. This aspect involves determining if treatment will be with a curative intent or for palliation. This involves obtaining locoregional control because the rapidity of growth of the tumor can lead to airway obstruction or difficulty with eating.

The guideline also stresses the need for a multidisciplinary approach involving the endocrinologists, head and neck surgeon, medical and radiation oncologist, palliative care and other necessary specialists. It is also pertinent that the patient understands their options, prognosis and the risks of treatment. Goals of care and code status should be discussed with the patient.

Recommendations are also made as to treatment based on the stage of the disease.

It should be noted that this is a guideline and in no way the standard of care. Treatment should be individualized to the patient and his disease state.