Browsing by Author "Howard, Alan"

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    Summary of the 2019 Blood and Marrow Transplant Clinical Trials Network Myeloma Intergroup Workshop on Minimal Residual Disease and Immune Profiling
    (Elsevier, 2020-10) Holstein, Sarah A.; Howard, Alan; Avigan, David; Bhutani, Manisha; Cohen, Adam D.; Costa, Luciano J.; Dhodapkar, Madhav V.; Gay, Francesca; Gormley, Nicole; Green, Damian J.; Hillengass, Jens; Korde, Neha; Li, Zihai; Mailankody, Sham; Neri, Paola; Parekh, Samir; Pasquini, Marcelo C.; Puig, Noemi; Roodman, G. David; Samur, Mehmet Kemal; Shah, Nina; Shah, Urvi A.; Shi, Qian; Spencer, Andrew; Suman, Vera J.; Usmani, Saad Z.; McCarthy, Philip L.; Medicine, School of Medicine
    The Blood and Marrow Transplant Clinical Trials Network (BMT CTN) Myeloma Intergroup has organized an annual workshop focused on minimal residual disease (MRD) testing and immune profiling (IP) in multiple myeloma since 2016. In 2019, the workshop took place as an American Society of Hematology (ASH) Friday Scientific Workshop entitled “Immune Profiling and Minimal Residual Disease Testing in Multiple Myeloma”. This workshop focused on four main topics: the molecular and immunological evolution of plasma cell disorders, the development of new laboratory- and imaging-based MRD assessment approaches, chimeric antigen receptor T-cell therapy research, and the statistical and regulatory issues associated with novel clinical endpoints. In this report, we provide a summary of the workshop and discuss future directions.
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    Validated graft-specific biomarkers identify patients at risk for chronic graft-versus-host disease and death
    (The American Society for Clinical Investigation, 2023-08-01) Logan, Brent R.; Fu, Denggang; Howard, Alan; Fei, Mingwei; Kou, Jianqun; Little, Morgan R.; Adom, Djamilatou; Mohamed, Fathima A.; Blazar, Bruce R.; Gafken, Philip R.; Paczesny, Sophie; Pediatrics, School of Medicine
    BACKGROUND: Chronic graft-versus-host disease (cGVHD) is a serious complication of allogeneic hematopoietic cell transplantation (HCT). More accurate information regarding the risk of developing cGVHD is required. Bone marrow (BM) grafts contribute to lower cGVHD, which creates a dispute over whether risk biomarker scores should be used for peripheral blood (PB) and BM. METHODS: Day 90 plasma proteomics from PB and BM recipients developing cGVHD revealed 5 risk markers that were added to 8 previous cGVHD markers to screen 982 HCT samples of 2 multicenter Blood and Marrow Transplant Clinical Trials Network (BMTCTN) cohorts. Each marker was tested for its association with cause-specific hazard ratios (HRs) of cGVHD using Cox-proportional-hazards models. We paired these clinical studies with biomarker measurements in a mouse model of cGVHD. RESULTS: Spearman correlations between DKK3 and MMP3 were significant in both cohorts. In BMTCTN 0201 multivariate analyses, PB recipients with 1-log increase in CXCL9 and DKK3 were 1.3 times (95% CI: 1.1–1.4, P = 0.001) and 1.9 times (95%CI: 1.1–3.2, P = 0.019) and BM recipients with 1-log increase in CXCL10 and MMP3 were 1.3 times (95%CI: 1.0–1.6, P = 0.018 and P = 0.023) more likely to develop cGVHD. In BMTCTN 1202, PB patients with high CXCL9 and MMP3 were 1.1 times (95%CI: 1.0–1.2, P = 0.037) and 1.2 times (95%CI: 1.0–1.3, P = 0.009) more likely to develop cGVHD. PB patients with high biomarkers had increased likelihood to develop cGVHD in both cohorts (22%–32% versus 8%–12%, P = 0.002 and P < 0.001, respectively). Mice showed elevated circulating biomarkers before the signs of cGVHD. CONCLUSION: Biomarker levels at 3 months after HCT identify patients at risk for cGVHD occurrence.