PMID- 32256799 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20200928 IS - 1792-0981 (Print) IS - 1792-1015 (Electronic) IS - 1792-0981 (Linking) VI - 19 IP - 4 DP - 2020 Apr TI - Risk factors associated with poor response to immunosuppressive therapy in acquired aplastic anemia: A meta-analysis of retrospective studies. PG - 3104-3112 LID - 10.3892/etm.2020.8536 [doi] AB - Acquired aplastic anemia (AA) is a rare hematological disease characterized by bone marrow hypocellularity and varying degrees of pancytopenia. Immunosuppressive therapy (IST) is currently one of the first-line treatments for AA; however, unresponsiveness remains a major concern. Although previous studies have suggested several common risk factors for unresponsiveness, there are currently no widely accepted predictors. Therefore, a meta-analysis of clinical trials including information on factors associated with unresponsiveness of AA to IST was performed in the present study. The PubMed, Embase and Cochrane Library databases were searched for clinical studies on AA evaluating the association between risk factors and unresponsiveness to IST. After the factors were defined from the selected studies, the association between these factors and unresponsiveness to IST was analyzed using Review Manager software. A total of 10 studies comprising 1,820 cases were included in the present meta-analysis. The following factors were identified as predictors of unresponsiveness: Age (>/=60 years), sex, absolute neutrophil count, severity of the disease, paroxysmal nocturnal hemoglobinuria clone, human leukocyte antigen (HLA)-DR2 and cytogenetic abnormalities (CAs). Among these factors, only age (>/=60 years) [odds ratio (OR)=1.65], HLA-DR2 negativity (OR=2.72) and CAs (OR=1.93) exhibited a statistically significant association with unresponsiveness to IST (P=0.006, P=0.04 and P=0.01, respectively). In conclusion, the present meta-analysis revealed that age >/=60 years, HLA-DR2 negativity and CAs are risk factors for unresponsiveness to IST. This result may enable clinicians to select an effective therapeutic scheme for patients with AA and even provide novel clues to the pathogenesis of AA. CI - Copyright: (c) Wang et al. FAU - Wang, Jia AU - Wang J AD - Department of Pathology, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200092, P.R. China. FAU - Shen, Ping AU - Shen P AD - Department of Pathology, Shanghai Children's Medical Center Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200092, P.R. China. FAU - Wu, Xiangru AU - Wu X AD - Department of Pathology, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200092, P.R. China. FAU - Jin, Wenjie AU - Jin W AD - Department of Orthopaedics, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 201999, P.R. China. LA - eng PT - Journal Article DEP - 20200219 PL - Greece TA - Exp Ther Med JT - Experimental and therapeutic medicine JID - 101531947 PMC - PMC7086236 OTO - NOTNLM OT - aplastic anemia OT - immunosuppressive therapy OT - meta-analysis OT - poor response EDAT- 2020/04/08 06:00 MHDA- 2020/04/08 06:01 PMCR- 2020/02/19 CRDT- 2020/04/08 06:00 PHST- 2019/07/09 00:00 [received] PHST- 2020/01/22 00:00 [accepted] PHST- 2020/04/08 06:00 [entrez] PHST- 2020/04/08 06:00 [pubmed] PHST- 2020/04/08 06:01 [medline] PHST- 2020/02/19 00:00 [pmc-release] AID - ETM-0-0-8536 [pii] AID - 10.3892/etm.2020.8536 [doi] PST - ppublish SO - Exp Ther Med. 2020 Apr;19(4):3104-3112. doi: 10.3892/etm.2020.8536. Epub 2020 Feb 19.