The study design was an open label, phase I/II trial of sirolimus for one year followed by one year off therapy.Patients were seen at baseline,at two weeks to four weeks, and at 2,4,6,9,12,18 and 24 months. Angiomyolipomata imaging was performed at all but the two to four week visit. Complete pulmonary function tests and six-minute walk were obtained at baseline,6 or 9 month, 12 and 24 month visits, while simple spirometry only was performed at all other visits.
