PMID- 32888029 OWN - NLM STAT- MEDLINE DCOM- 20210927 LR - 20210927 IS - 1349-9157 (Electronic) IS - 0449-3060 (Print) IS - 0449-3060 (Linking) VI - 61 IP - 6 DP - 2020 Nov 16 TI - Safety of total body irradiation using intensity-modulated radiation therapy by helical tomotherapy in allogeneic hematopoietic stem cell transplantation: a prospective pilot study. PG - 969-976 LID - 10.1093/jrr/rraa078 [doi] AB - Total body irradiation using intensity-modulated radiation therapy total body irradiation (IMRT-TBI) by helical tomotherapy in allogeneic hematopoietic stem cell transplantation (allo-HSCT) allows for precise evaluation and adjustment of radiation dosage. We conducted a single-center pilot study to evaluate the safety of IMRT-TBI for allo-HSCT recipients. Patients with hematological malignancies in remission who were scheduled for allo-HSCT with TBI-based myeloablative conditioning were eligible. The primary endpoint was the incidence of adverse events (AEs). Secondary endpoints were engraftment rate, overall survival, relapse rate, non-relapse mortality, and the incidence of acute and chronic graft-versus-host disease (aGVHD and cGVHD, respectively). Between July 2018 and November 2018, ten patients were recruited with a median observation duration of 571 days after allo-HSCT (range, 496-614). D80% for planning target volume (PTV) in all patients was 12.01 Gy. Average D80% values for lungs, kidneys and lenses (right/left) were 7.50, 9.03 and 4.41/4.03 Gy, respectively. Any early AEs (within 100 days of allo-HSCT) were reported in all patients. Eight patients experienced oral mucositis and gastrointestinal symptoms. One patient experienced Bearman criteria grade 3 regimen-related toxicity (kidney and liver). All cases achieved neutrophil engraftment. There was no grade III-IV aGVHD or late AE. One patient died of sinusoidal obstruction syndrome 67 days after allo-HSCT. The remaining nine patients were alive and disease-free at final follow-up. Thus, IMRT-TBI was well tolerated in terms of early AEs in adult patients who underwent allo-HSCT; this warrants further study with longer observation times to monitor late AEs and efficacy. CI - (c) The Author(s) 2020. Published by Oxford University Press on behalf of The Japanese Radiation Research Society and Japanese Society for Radiation Oncology. FAU - Konishi, Tatsuya AU - Konishi T AD - Hematology Division, Tokyo Metropolitan Cancer and Infectious Diseases Center, Komagome Hospital. FAU - Ogawa, Hiroaki AU - Ogawa H AD - Division of Radiation Oncology, Department of Radiology, Tokyo Metropolitan Cancer and Infectious Diseases Center, Komagome Hospital. FAU - Najima, Yuho AU - Najima Y AD - Hematology Division, Tokyo Metropolitan Cancer and Infectious Diseases Center, Komagome Hospital. FAU - Hashimoto, Shinpei AU - Hashimoto S AD - Division of Radiation Oncology, Department of Radiology, Tokyo Metropolitan Cancer and Infectious Diseases Center, Komagome Hospital. FAU - Wada, Atsushi AU - Wada A AD - Hematology Division, Tokyo Metropolitan Cancer and Infectious Diseases Center, Komagome Hospital. FAU - Adachi, Hiroto AU - Adachi H AD - Hematology Division, Tokyo Metropolitan Cancer and Infectious Diseases Center, Komagome Hospital. FAU - Konuma, Ryosuke AU - Konuma R AD - Hematology Division, Tokyo Metropolitan Cancer and Infectious Diseases Center, Komagome Hospital. FAU - Kishida, Yuya AU - Kishida Y AD - Hematology Division, Tokyo Metropolitan Cancer and Infectious Diseases Center, Komagome Hospital. FAU - Nagata, Akihito AU - Nagata A AD - Hematology Division, Tokyo Metropolitan Cancer and Infectious Diseases Center, Komagome Hospital. FAU - Yamada, Yuta AU - Yamada Y AD - Hematology Division, Tokyo Metropolitan Cancer and Infectious Diseases Center, Komagome Hospital. FAU - Kaito, Satoshi AU - Kaito S AD - Hematology Division, Tokyo Metropolitan Cancer and Infectious Diseases Center, Komagome Hospital. FAU - Mukae, Junichi AU - Mukae J AD - Hematology Division, Tokyo Metropolitan Cancer and Infectious Diseases Center, Komagome Hospital. FAU - Marumo, Atsushi AU - Marumo A AD - Hematology Division, Tokyo Metropolitan Cancer and Infectious Diseases Center, Komagome Hospital. FAU - Noguchi, Yuma AU - Noguchi Y AD - Hematology Division, Tokyo Metropolitan Cancer and Infectious Diseases Center, Komagome Hospital. FAU - Toya, Takashi AU - Toya T AD - Hematology Division, Tokyo Metropolitan Cancer and Infectious Diseases Center, Komagome Hospital. FAU - Igarashi, Aiko AU - Igarashi A AD - Hematology Division, Tokyo Metropolitan Cancer and Infectious Diseases Center, Komagome Hospital. FAU - Kobayashi, Takeshi AU - Kobayashi T AD - Hematology Division, Tokyo Metropolitan Cancer and Infectious Diseases Center, Komagome Hospital. FAU - Ohashi, Kazuteru AU - Ohashi K AD - Hematology Division, Tokyo Metropolitan Cancer and Infectious Diseases Center, Komagome Hospital. FAU - Doki, Noriko AU - Doki N AD - Hematology Division, Tokyo Metropolitan Cancer and Infectious Diseases Center, Komagome Hospital. FAU - Karasawa, Katsuyuki AU - Karasawa K AD - Division of Radiation Oncology, Department of Radiology, Tokyo Metropolitan Cancer and Infectious Diseases Center, Komagome Hospital. LA - eng PT - Journal Article PL - England TA - J Radiat Res JT - Journal of radiation research JID - 0376611 SB - IM MH - Adult MH - Disease-Free Survival MH - Female MH - Graft vs Host Disease MH - Hematopoietic Stem Cell Transplantation/*methods MH - Humans MH - Incidence MH - Male MH - Middle Aged MH - *Patient Safety MH - Pilot Projects MH - Prospective Studies MH - Radiotherapy, Intensity-Modulated/*methods MH - Recurrence MH - Remission Induction MH - Transplantation Conditioning MH - Treatment Outcome MH - Whole-Body Irradiation/*methods MH - Young Adult PMC - PMC7674702 OTO - NOTNLM OT - allogeneic stem cell transplantation OT - helical tomotherapy OT - intensity-modulated radiation therapy OT - total body irradiation EDAT- 2020/09/06 06:00 MHDA- 2021/09/28 06:00 PMCR- 2020/09/05 CRDT- 2020/09/05 05:19 PHST- 2020/05/11 00:00 [received] PHST- 2020/07/05 00:00 [revised] PHST- 2020/08/20 00:00 [accepted] PHST- 2020/09/06 06:00 [pubmed] PHST- 2021/09/28 06:00 [medline] PHST- 2020/09/05 05:19 [entrez] PHST- 2020/09/05 00:00 [pmc-release] AID - 5901557 [pii] AID - rraa078 [pii] AID - 10.1093/jrr/rraa078 [doi] PST - ppublish SO - J Radiat Res. 2020 Nov 16;61(6):969-976. doi: 10.1093/jrr/rraa078.