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Rashidi A, Ebadi M, Rehman TU, Elhusseini H, Kazadi D, Halaweish H, Khan MH, Hoeschen A, Cao Q, Luo X, Kabage AJ, Lopez S, Holtan SG, Weisdorf DJ, Khoruts A, Staley C. Potential of Fecal Microbiota Transplantation to Prevent Acute GVHD: Analysis from a Phase II Trial. Clin Cancer Res 2023; 29:4920-4929. [PMID: 37787998 PMCID: PMC10841695 DOI: 10.1158/1078-0432.ccr-23-2369] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Revised: 09/18/2023] [Accepted: 09/29/2023] [Indexed: 10/04/2023]
Abstract
PURPOSE Intestinal microbiota disruptions early after allogeneic hematopoietic cell transplantation have been associated with increased risk for acute GVHD (aGVHD). In our recent randomized phase II trial of oral, encapsulated, third-party fecal microbiota transplantation (FMT) versus placebo, FMT at the time of neutrophil recovery was safe and ameliorated dysbiosis. Here, we evaluated in post hoc analysis whether donor microbiota engraftment after FMT may protect against aGVHD. EXPERIMENTAL DESIGN We analyzed pre- and post-FMT stool samples and estimated donor microbiota engraftment (a preplanned secondary endpoint) by determining the fraction of post-FMT microbiota formed by unique donor taxa (donor microbiota fraction; dMf). RESULTS dMf was higher in patients who later developed grade I or no aGVHD (median 33.9%; range, 1.6%-74.3%) than those who developed grade II-IV aGVHD (median 25.3%; range, 2.2%-34.8%; P = 0.006). The cumulative incidence of grade II-IV aGVHD by day 180 was lower in the group with greater-than-median dMf than the group with less-than-median dMf [14.3% (95% confidence interval, CI, 2.1-37.5) vs. 76.9% (95% CI, 39.7-92.8), P = 0.008]. The only determinant of dMf in cross-validated least absolute shrinkage and selection operator (LASSO)-regularized regression was the patient's pre-FMT microbiota diversity (Pearson correlation coefficient -0.82, P = 1.6 × 10-9), indicating more potent microbiota modulation by FMT in patients with more severe dysbiosis. Microbiota network analysis revealed major rewiring including changes in the most central nodes, without emergence of keystone species, as a potential mechanism of FMT effect. CONCLUSIONS FMT may have protective effects against aGVHD, especially in patients with more severe microbiota disruptions.
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Affiliation(s)
- Armin Rashidi
- Division of Hematology, Oncology, and Transplantation, Department of Medicine, University of Minnesota; Minneapolis, MN, USA
- Clinical Research Division, Fred Hutchinson Cancer Center; and Division of Oncology, University of Washington; Seattle, WA, USA
| | - Maryam Ebadi
- Department of Radiation Oncology, University of Washington and Fred Hutchinson Cancer Center; Seattle, WA, USA
| | - Tauseef Ur Rehman
- Division of Hematology, Oncology, and Transplantation, Department of Medicine, University of Minnesota; Minneapolis, MN, USA
| | - Heba Elhusseini
- Division of Hematology, Oncology, and Transplantation, Department of Medicine, University of Minnesota; Minneapolis, MN, USA
| | - David Kazadi
- Department of Medicine, University of Minnesota; Minneapolis, MN, USA
| | - Hossam Halaweish
- Department of Surgery, University of Minnesota; Minneapolis, MN, USA
| | - Mohammad H. Khan
- Department of Surgery, University of Minnesota; Minneapolis, MN, USA
| | - Andrea Hoeschen
- Division of Hematology, Oncology, and Transplantation, Department of Medicine, University of Minnesota; Minneapolis, MN, USA
| | - Qing Cao
- Biostatistics Core, Masonic Cancer Center, University of Minnesota; Minneapolis, MN, USA
| | - Xianghua Luo
- Biostatistics Core, Masonic Cancer Center, University of Minnesota; Minneapolis, MN, USA
- Division of Biostatistics, School of Public Health, University of Minnesota; Minneapolis, MN, USA
| | - Amanda J. Kabage
- Center for Immunology, University of Minnesota; Minneapolis, MN, USA
| | - Sharon Lopez
- Center for Immunology, University of Minnesota; Minneapolis, MN, USA
| | - Shernan G. Holtan
- Division of Hematology, Oncology, and Transplantation, Department of Medicine, University of Minnesota; Minneapolis, MN, USA
| | - Daniel J. Weisdorf
- Division of Hematology, Oncology, and Transplantation, Department of Medicine, University of Minnesota; Minneapolis, MN, USA
| | - Alexander Khoruts
- Division of Gastroenterology, Hepatology, and Nutrition, Department of Medicine, University of Minnesota; Minneapolis, MN, USA
- Center for Immunology, University of Minnesota; Minneapolis, MN, USA
- Biotechnology Institute, University of Minnesota; St. Paul, MN, USA
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