Scientific corner

Single Needle Granulocyte and Monocyte Apheresis for Ulcerative Colitis: A Retrospective Safety Analysis

Tetsurou Imai 1Hiroshi Yamasaki 2 3 4Keiichi Mitsuyama 3Osamu Yamaga 1Gaku Sugihara 1Yusuke Kaida 5Ryo Shibata 5Takuma Hazama 5Shinichiro Yoshioka 2 3Takuji Torimura 2Kei Fukami 5Norio Yamashita 6

Kurume Med J. 2020 Jul 1;66(1):1-7. doi: 10.2739/kurumemedj.MS661002. Epub 2020 Jan 15.

Introduction: Granulocyte and monocyte apheresis (GMA) is an effective treatment strategy for active ulcerative colitis (UC) in Japan. Single needle (SN) apheresis reduces needle puncture pain in patients because it requires only one puncture site. We evaluated whether single-needle apheresis could be a safe and effective means of reducing patient burden. Method: We performed a retrospective study of active UC patients who were treated with either SN apheresis or conventional double-needle (DN) apheresis at the Kurume university hospital from April 2014 to March 2018. All the patients treated with GMA after September 2016 underwent SN apheresis. Thus, the two groups predominantly belonged to different time periods. We assessed the safety of SN apheresis. Result: Six patients underwent SN apheresis, and 6 underwent DN apheresis. The average time to the start of apheresis was significantly reduced from 23.1 minutes in the case of DN apheresis to 12.6 minutes for SN apheresis. In addition, the number of difficult punctures was significantly reduced with SN apheresis. There were no differences in adverse events between SN and DN apheresis. Treatment benefits, remission rate and disease activity were similar between SN and DN apheresis.Conclusion: SN apheresis reduced both the time to treatment initiation and pain during puncture, and there was no difference in the number of blood clotting episodes as compared with DN. Although further comparative studies are needed, SN apheresis may be a safe alternative for patients to reduce the strain of treatment.

https://pubmed.ncbi.nlm.nih.gov/31941846/

https://www.jstage.jst.go.jp/article/kurumemedj/66/1/66_MS661002/_article

Scientific corner

A multicenter retrospective study aiming to identify patients who respond well to adsorptive granulomonocytapheresis in moderately to severely active ulcerative colitis.

Takayuki Yamamoto 1Takayuki Iida 2Kentaro Ikeya 2Masaichi Kato 2Ai Matsuura 2Satoshi Tamura 3Ryosuke Takano 3Shinya Tani 4Satoshi Osawa 4Ken Sugimoto 3Takahiro Shimoyama 5Hiroyuki Hanai 2 , Clin Transl Gastroenterol 2018 Jul 6;9(7):170.

Objectives: Adsorptive granulomonocytapheresis (GMA) with the Adacolumn has been introduced as a non-pharmacologic treatment for ulcerative colitis (UC). However, a subset of patients who might respond well to GMA needs to be targeted. This study was conducted at three IBD centers to determine factors affecting the efficacy of GMA in patients with moderately-to-severely active UC. 1234567890(); 1234567890(),; 1234567890(); 1234567890(); Methods: From January 2008 to December 2017, a total of 894 active episodes (first attack or relapse) in 593 patients were treated with GMA. Clinical remission was defined as normal stool frequency and no rectal bleeding. Multiple clinical and laboratory parameters at entry were considered for efficacy assessment. Results: Clinical remission was achieved during 422 (47%) of the 894 treatment cases. In the multivariate analysis, predictors for favorable response to GMA were age ≤60 years, UC duration <1 year, Mayo endoscopic subscore 2 (vs. 3), steroid naïve UC, and biologic naïve UC. Clinical remission rate was 70% in patients with four of the five factors, 52% in patients with three factors, 46% in patients with two factors, 39% in patients with one factor, and 18% in patients with none of these factors. Overall, the clinical remission rate was significantly higher in patients with a greater number of the five predictors (P < 0.0001). Conclusions: GMA appeared to be effective in steroid naïve and biologic naïve patients with short duration of UC. Elderly patients (>60 years) and those with severe endoscopic activity did not respond well to GMA. Additional, well designed, prospective, controlled trials should strengthen our findings.

https://pubmed.ncbi.nlm.nih.gov/29977035/

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6033883/pdf/41424_2018_Article_37.pdf

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