Abstract： Objective To summarize and analyze the clinical outcomes of gestational trophoblastic neoplasia (GTN) patients receiving primary treatment at Peking Union Medical College Hospital from 1985 to 2015,and investigate the changes in treatment efficacy between the first and the second 15 years.Methods Clinical data of GTN patient receiving primary chemotherapy at Peking Union Medical College Hospital from January 1985 to December 2015 were retrospectively analyzed.It further compared the therapeutic results and chemotherapy cycles given to GTN patients,according to International Federation of Gynecology and Obstetrics (FIGO,2000) prognostic score system,who were classified to different stages and low-or high-risk groups.Results In total,1 711 GTN patients were included in this study.Comparing the 1985-2000 group and the 2001-2015 group,the results showed that:(1) while the overall complete remission (CR) rate was 93.7％ (1 603/1 711),the CR rate of 2001-2015 group was significantly higher than that of 1985-2000 group [98.4％ (1 155/1 174) vs 83.4％ (448/537),x2=139.353,P＜0.01].This difference was significant between stage Ⅲ and Ⅳ patients,but nonexistent between stage Ⅰ and Ⅱ patients,including low-and high-risk groups.(2) The relapse rate of patients who had been in CR was 2.7％ (43/1 603),with no significant differences between the groups of 1985-2001 and 2001-2015 [3.6％ (16/448) vs 2.3％ (27/1 155),x2=6.867,P=0.142].(3) The overall mortality rate was 2.6％ (44/1 711),which significantly decreased in 2001-2015 group compared to 1985-2000 group [1.6％ (19/1 174) vs 4.7％ (25/537),x2=13.830,P＜0.01].This difference appeared only in high-risk patients with stage Ⅲ disease (x2=9.505,P＜0.01).(4) Fluorouracil was gradually replaced by floxridine in chemotherapy regimens.The total cycles of chemotherapy regimens given to low-risk patients with stage Ⅲ disease significantly decreased in 2001-2015 group,but no statistical difference was shown with patients at other stages.Moreover,the cycles of consolidation treatment were significantly reduced in patients with stage Ⅲ patients.Conclusions GTN patients could obtain satisfactory curative results after appropriate and standard treatment.Peking Union Medical College Hospital has achieved better curative effect in the latest 15 years than before.