Pilot Study of Phosphodiesterase-5 Inhibitor Tadalafil (Cialis) as an Immunomodulator in Patients With Oral Cavity and Oropharyngeal Squamous Cell Carcinoma
Abstract
RATIONALE: Biological therapies, such as tadalafil, may stimulate the immune system in different ways and stop tumor cells from growing.
PURPOSE: This randomized clinical trial is studying how well tadalafil works in treating patients who are undergoing surgery for cancer of the oral cavity or oropharynx.
Conditions: Head and Neck Cancer.
Primary outcome: Ratio of MDSC Concentration in the Blood; Ratio of T-reg Cell Concentration in the Blood; Ratio of Tumor-specific T-cell Concentration in the Blood.
Enrollment: 35 participants.
How strong is the evidence?
Evidence Hub reads this as a randomized trial, done in people. Its evidence level is 2 of 5 (High · randomized trial). Randomized trials of a reasonable size are the strongest single-study design. Reported size: 35 participants or records.
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