The Laryngoscope
Lippincott Williams & Wilkins, Inc.
© 2006 The American Laryngological,
Rhinological and Otological Society, Inc.
Changes in Treatment of Advanced
Oropharyngeal Cancer, 1985–2001
Amy Y. Chen, MD, MPH, FACS; Nicole Schrag, MSPH; Yongping Hao, PhD; Andrew Stewart, MS;
Elizabeth Ward, PhD
Objective: The aim of this study is to describe
patterns of care of advanced oropharyngeal cancer
during 1985 to 2001. Methods: We extracted oropha-
ryngeal squamous cell cancer cases from the National
Cancer Database. Type of initial treatment, type of
facility, stage of tumor, payer status, and demo-
graphic variables were collected. Fisher exact test
was used to compare the patient demographic and
clinical characteristics across facility types.
Weighted least squares regression analysis was
used to analyze treatment trends over time and
t-tests were done to test for significance in trends.
Results: A total of 54,801 cases were available for
analysis. Teaching/research facilities treated a
disproportionately higher number of advanced-
stage cancers (81%, P < .01). In addition, these
facilities treat a higher percentage of uninsured
(7%, P < .01) and nonwhite patients (27%, P < .01).
The use of organ preservation protocols (chemo-
radiation) increased from 15% in 1985 to 29% in
2001 (
1
0.0080, P < .05), whereas the use of
radiation alone decreased from 42% in 1985 to 27%
in 2001 (
1
0.0118, P < .05). The use of cancer-
directed surgery remained stable. There was no
difference in rates of chemoradiation for ad-
vanced oropharyngeal cancer across facility
types. Conclusions: Our results suggest that che-
moradiation is increasingly becoming more prev-
alent at all facility types. The use of radiation
alone as primary treatment significantly declined
during the study period. In view of the complexity
and multidisciplinary nature of treatment for oro-
pharyngeal cancer, it is recommended that care of
such patients be discussed at institutional tumor
boards and that the recommendations be system-
atically recorded and documented in hospital can-
cer registries. Key Words: Oropharyngeal cancer,
patterns of care, chemoradiation.
Laryngoscope, 117:16 –21, 2007
INTRODUCTION
Oropharyngeal cancer involves the soft palate, tonsil,
base of the tongue, and vallecula and is diagnosed in
nearly 9,000 men and women in the United States annu-
ally.
1
The majority of these cancers originate in the base of
the tongue and tonsils and more than 90% are squamous
cell carcinomas.
2
For many years, surgery followed by
radiotherapy or radiotherapy alone was considered the
standard treatment for advanced oropharyngeal cancer.
Unfortunately, patients with advanced disease treated
with surgical resection experience impairment of swallow-
ing and speech, leading to decreased quality of life in
many aspects, including nutrition, social functioning, and
personal hygiene.
3
Progress in nonsurgical treatment for advanced-
stage head and neck cancer began more than a decade ago,
in 1991. The results of a prospective, randomized clinical
trial, the Veterans’ Administration (VA) Laryngeal Can-
cer Study, were published.
4
In this landmark study, more
than 300 patients with stage III or IV laryngeal cancer
were randomized to two arms of treatment: induction
chemotherapy with cisplatin and fluorouracil and radio-
therapy or total laryngectomy followed by radiotherapy.
Close to two-thirds (62%) of the patients in the chemother-
apy and radiation arm were able to preserve their larynx
with no significant differences in overall survival between
the nonsurgical and surgical arms of the study. After the
completion of the VA Laryngeal Cancer Study, the Head
and Neck Intergroup in the United States initiated the
RTOG 91 to 11 study to determine the precise role of
chemotherapy.
5
Concurrent chemotherapy with radiation
offered the highest laryngeal preservation rate (88%) as
compared with radiation alone (70%, P .001) and induc-
tion chemotherapy followed by radiation (74%, P = .005).
This study solidified the use of chemotherapy and radia-
tion as a valid treatment option for patients desiring
laryngeal-preservation treatment.
The findings of the laryngeal cancer clinical trials
were extrapolated for use in other organ sites, including
the oropharynx. In 1999, Calais and colleagues reported
From Emory University School of Medicine (A.Y.C.), Atlanta, Georgia,
U.S.A.; the American Cancer Society (A.Y.C., N.S., Y.H., E.W.), Atlanta, Geor-
gia, U.S.A.; and the American College of Surgeons (A.S.), Chicago, Illinois,
U.S.A.
Editor’s Note: This Manuscript was accepted for publication July 17,
2006.
Presented at the Annual Meeting of the Triological Society, Chicago,
Illinois, U.S.A., May 21, 2006.
Send correspondence to Amy Y. Chen, MD, MPH, FACS, 1599
Clifton Rd. NE, Atlanta, GA 30329, U.S.A. E-mail: amy.chen@cancer.org
DOI: 10.1097/01.mlg.0000240182.61922.31
Laryngoscope 117: January 2007 Chen et al.: Changes in Treatment of Advanced Oropharyngeal Cancer
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