4-8 weeks, including taper.
The 2019 ASH clinical guideline recommends treating for 6 weeks or less:

The 2019 International Consensus Report suggests a maximum of 8 weeks:

Oct
12
2021
4-8 weeks, including taper.
The 2019 ASH clinical guideline recommends treating for 6 weeks or less:
The 2019 International Consensus Report suggests a maximum of 8 weeks: