14  Post-Transplant Maintenance Therapy Visualization

Author

HSCT Program

14.1 Introduction

This document provides visualizations of the recommended maintenance therapy strategies for myeloid malignancies following allogeneic hematopoietic stem cell transplantation (HSCT) as outlined in the Standard Practice Guidelines (SPG R v. 1.00).

14.2 1. Maintenance Therapy Decision Algorithm

Maintenance Therapy Decision Algorithm

Initial Assessment Criteria Recommendation
Patient with myeloid malignancy post-HSCT Prior clinical trial Refer to trial protocol for maintenance
FLT3-ITD mutation (MRD positive) Gilteritinib maintenance
Start Day +30 to +90
Continue for 2 years
Alternative: Consider quizartinib if remission achieved on it prior to HSCT
FLT3-TKD mutation Not recommended
Consider midostaurin if remission achieved on it prior to HSCT

14.3 2. HMA Maintenance Therapy Regimens

Hypomethylating Agent (HMA) Maintenance Regimens
Agent Dose Days Cycle_Length Notes
Azacitidine 35 mg/m² Days 1-7 Every 28 days
Decitabine 5 mg/m² Days 1-5 Every 28 days ±G-CSF
Decitabine-Cedazuridine (Inqovi) 35/100 mg Days 1-3 Every 28-42 days Alternative if IV administration not feasible

14.4 3. Timing of Maintenance Therapy

14.5 4. Monitoring Requirements

Monitoring Requirements Based on Mutation Status

Mutation NGS PCR MRD Monitoring Schedule Additional Notes
FLT3-ITD Yes Yes (Invivoscribe) Pre-HSCT, Day +30, Day +90 Email C.mosse@vumc.org before ordering
NPM1 Yes Yes (ARUP RT-PCR) Pre-HSCT, Day +30, Day +90 ARUP RT-PCR preferred over Invivoscribe

14.6 Conclusion

This document provides a subset of visualizations for the Standard Practice Guidelines (SPG) on Post-Transplant Maintenance Therapy for myeloid malignancies. The complete document contains additional visualizations not shown in this minimal version.