Originally published as JCO Early Release 10.1200/JCO.2005.02.4182 on September 19 2005

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Phase I Study of Gefitinib Plus Celecoxib in Recurrent or Metastatic Squamous Cell Carcinoma of the Head and Neck

From the Department of Adult Oncology, Dana-Farber Cancer Institute; the Department of Medicine, Pathology, and Otolaryngology, Brigham and Women's Hospital; and Harvard Medical School, Boston, MA

Address reprint requests to Lori J. Wirth, MD, Dana-Farber Cancer Institute, 44 Binney St, Boston, MA 02115; e-mail: lwirth{at}partners.org

PURPOSE: Effective and tolerable palliative treatments are needed for patients with incurable squamous cell carcinoma of the head and neck (SCCHN). Single-agent targeted therapies have limited activity in this setting. The feasibility of adding celecoxib to gefitinib for the treatment of incurable SCCHN is unknown.

PATIENTS AND METHODS: Nineteen patients with unresectable recurrent locoregional and/or distant metastatic SCCHN with progressive disease after at least one prior chemotherapy or chemoradiotherapy regimen were enrolled onto this single-institution phase I study. Three dose levels were explored: (1) celecoxib 200 mg twice daily plus gefitinib 250 mg daily; (2) celecoxib 400 mg twice daily plus gefitinib 250 mg daily; and (3) celecoxib 400 mg twice daily plus gefitinib 500 mg daily.

RESULTS: No dose-limiting toxicities were encountered at any dose level. The most common toxicities were acneiform rash, diarrhea, hand reaction, dyspepsia, and anemia. Four of 18 patients assessable for response (22%; 95% CI, 2% to 42%) achieved a confirmed partial response.

CONCLUSION: The combination of gefitinib 500 mg daily plus celecoxib 400 mg twice daily is well-tolerated. The encouraging responses seen in this early study suggest further evaluation of epidermal growth factor receptor and cyclooxygenase-2 inhibitors in SCCHN is warranted.

Supported by AstraZeneca PLC.

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