
Management of Relapse and Refractory Patients
Managing relapsed patients depends on the phase of treatment the patient was in when the relapse occurred:
- Relapse through consolidation or maintenance therapy carries a poor prognosis. Reintroducing intensive treatment is usually recommended as part of an overall plan to try to achieve long-term disease control by some sort of allografting procedure. The exact protocols used will vary and depend to some extent on the initial protocols used. Other intensive schedules such as HyperCVAD could be considered. The outcome of patients who relapsed after UKALL12 is presented by Fielding et al 2007. A good account of treatment of relapsed disease is given in Frey, N.V. and Luger, S.M. (2015). "How I treat adults with relapsed or refractory Philadelphia chromosome–negative acute lymphoblastic leukemia." Blood 126: 589-96.
- Treatment of high risk ALL, including relapsed ALL, is being revolutionised by use of immunotherapy, such as CART cell therapy, e.g. Tisangenlecleucel, BiTE antibody therapy, e.g. Blinatumumab and labelled antibodies, e.g. inotuzumab ozogamicin. None of these are funded in New Zealand. Some success has been achieved by applications for these agents through the NPPA scheme, as a bridge to allogeneic transplant. See:
- If a patient relapses some years after completing maintenance treatment, the same initial treatment could be given again with longer maintenance. Alternatively a different schedule may be used.
- All these decisions will be taken together with the patient by the consultant caring for the patient.
Topic Code: 4421