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Predictors of death from chronic graft-versus-host disease after bone marrow transplantation
J R Wingard1, S Piantadosi, G B Vogelsang
1Oncology Center, Johns Hopkins Medical Institutions, Baltimore, MD 21205.
Insights
Identifying risk factors for chronic graft-versus-host disease (GVHD) after bone marrow transplantation is crucial. Progressive presentation, skin histology, and elevated bilirubin predict poorer survival in chronic GVHD patients.
Area of Science:
- Hematology
- Immunology
- Oncology
Background:
- Chronic graft-versus-host disease (GVHD) is a significant complication following bone marrow transplantation (BMT).
- It represents a major cause of long-term morbidity and mortality in transplant recipients.
- Understanding prognostic factors is essential for patient management and therapeutic trial design.
Purpose of the Study:
- To identify baseline clinical and histological characteristics associated with mortality in patients with chronic GVHD.
- To stratify patients based on identified risk factors to predict survival outcomes.
Main Methods:
- Retrospective analysis of 85 patients diagnosed with chronic GVHD.
- Multivariate proportional hazards analysis to determine independent predictors of death.
- Evaluation of baseline characteristics including disease presentation, skin histology, and serum bilirubin levels.
Main Results:
- Three independent predictors of death were identified: progressive disease presentation, lichenoid changes on skin biopsy, and elevated serum bilirubin (>1.2 mg/dL).
- Patients with no risk factors had a 6-year survival of 70%.
- Patients with one risk factor had a 6-year survival of 43%, while those with two or more risk factors had a 6-year survival of only 20%.
Conclusions:
- Baseline risk factors, including progressive presentation, skin histology, and elevated bilirubin, significantly predict survival in chronic GVHD.
- These findings can aid in stratifying patients for risk-adapted therapeutic strategies.
- Early identification of high-risk patients may improve outcomes through targeted interventions.
Abstract:
Chronic graft-v-host disease (chronic GVHD) is a frequent cause of late morbidity and death after bone marrow transplantation (BMT). The actuarial survival after onset of chronic GVHD in 85 patients was 42% (95%Cl = 29%, 54%) at 10 years. Baseline characteristics present at the onset of chronic GVHD (before therapy) in 85 patients were reviewed to determine which were risk factors for death. In a multivariate proportional hazards analysis, three baseline factors emerged as independent predictors of death: progressive presentation (chronic GVHD following acute GVHD without resolution of acute GVHD; hazard ratio of 4.1, 95% Cl = 2.1 to 7.8), lichenoid changes on skin histology (hazard ratio of 2.2, 95% Cl = 1.1 to 4.3), and elevation of serum bilirubin greater than 1.2 mg/dL (hazard ratio = 2.1, 95% Cl = 1.1 to 4.1). Actuarial survival of 23 chronic GVHD patients with none of these risk factors was 70% at 6 years (95% Cl = 38%, 88%). Thirty-eight patients with one of these risk factors had a projected 6-year survival of 43% (95% Cl = 21%, 63%). The 29 patients with any combination of two or more of these factors had a projected 6-year survival of only 20% (95% Cl = 8%, 37%). Identification of baseline risk factors should facilitate design of trials of chronic GVHD therapies and assignment of high-risk patients to more aggressive innovative therapeutic regimens.