Photofrin porfimer sodium data

A study in 21 patients shows destruction of the abnormal mucosa in Barrett's esophagus, a precancerous condition, with the Vancouver company's photodynamic therapy.

As reported at the meeting of the American College of Gastroenterology in New York, the dysplasia was eliminated in 17 of the patients (20 had high-grade, one had low-grade, dysplasia). ...