PMID- 32822257 OWN - NLM STAT- MEDLINE DCOM- 20210712 LR - 20220302 IS - 2688-1535 (Electronic) IS - 2688-1527 (Print) IS - 2688-1527 (Linking) VI - 17 IP - 3 DP - 2021 Mar TI - Changes in Intravenous Immunoglobulin Usage for Hypogammaglobulinemia After Implementation of a Stewardship Program. PG - e445-e453 LID - 10.1200/OP.20.00312 [doi] AB - PURPOSE: Intravenous immunoglobulin (IVIG) is used to replenish immunoglobulins in hypogammaglobulinemia (HG) caused by hematologic malignancies (HM) or their treatment (autologous stem-cell transplantation [ASCT] and chimeric antigen receptor T-cell therapy [CAR-T]), in an effort to reduce the risk of infections. However, there is limited evidence to support this use, and IVIG supplies are limited and shortages are common. METHODS: An IVIG stewardship program (ISP) was implemented with the following requirements for IVIG administration: immunoglobulin G (IgG) level < 400 mg/dL (corrected for paraprotein) for post-ASCT and post-CAR-T patients, or IgG < 400 mg/dL with a history of a bacterial infection within the preceding 3 months for those with HM. Comparisons of the amount of IVIG administered, the incidence of infections, and the use of antimicrobials were performed between the 3 months before ISP and the 3 months after ISP. RESULTS: IVIG administered for HG decreased from 4,902 g in 86 patients before ISP to 1,777 g in 55 patients after ISP, a cost savings of $44,700. Adherence to ISP guidelines was 80%. Compared with before ISP, patients who stopped receiving IVIG after ISP had lower nadir IgG, fewer infections/patient-months, less antimicrobial usage, and a lower hospitalization rate for infection; no deaths occurred. Compared with before ISP, patients receiving IVIG after ISP had lower predose IgG and fewer infections/patient-months; the antibiotic usage, hospitalization rate for infection, and deaths from infection remained stable. CONCLUSION: To our knowledge, this is the first ISP to lead to a dramatic decrease in IVIG usage with high adherence, primarily by selecting out patients at low risk of infection after IVIG discontinuation. Such an ISP is replicable and warrants adoption. FAU - Derman, Benjamin A AU - Derman BA AD - Section of Hematology/Oncology, University of Chicago Medical Center, Chicago, IL. FAU - Schlei, Zachary AU - Schlei Z AD - Department of Pharmacy, University of Chicago Medical Center, Chicago, IL. FAU - Parsad, Sandeep AU - Parsad S AD - Department of Pharmacy, University of Chicago Medical Center, Chicago, IL. FAU - Mullane, Kathleen AU - Mullane K AD - Section of Infectious Diseases, University of Chicago Medical Center, Chicago, IL. FAU - Knoebel, Randall W AU - Knoebel RW AD - Department of Pharmacy, University of Chicago Medical Center, Chicago, IL. LA - eng PT - Journal Article DEP - 20200821 PL - United States TA - JCO Oncol Pract JT - JCO oncology practice JID - 101758685 RN - 0 (Immunoglobulins, Intravenous) SB - IM MH - *Agammaglobulinemia/drug therapy MH - *Bacterial Infections/prevention & control MH - *Hematologic Neoplasms MH - *Hematopoietic Stem Cell Transplantation MH - Humans MH - Immunoglobulins, Intravenous/therapeutic use PMC - PMC8257910 EDAT- 2020/08/22 06:00 MHDA- 2021/07/13 06:00 PMCR- 2022/03/01 CRDT- 2020/08/22 06:00 PHST- 2020/08/22 06:00 [pubmed] PHST- 2021/07/13 06:00 [medline] PHST- 2020/08/22 06:00 [entrez] PHST- 2022/03/01 00:00 [pmc-release] AID - OP.20.00312 [pii] AID - 10.1200/OP.20.00312 [doi] PST - ppublish SO - JCO Oncol Pract. 2021 Mar;17(3):e445-e453. doi: 10.1200/OP.20.00312. Epub 2020 Aug 21.