Patients with PgR-positive tumours regardless of ER status (n=26) had the shortest median TTP (8.4 weeks), whereas patients with PgR-negative tumours had similar median TTP (15.4 weeks for ERnegative, PgR negative, n=60; 17 weeks for ER positive, PgR negative, n=12). This evidence concerns the gene PGR and neoplasm.