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Myeloid group

GUIDELINE ON THE USE OF IN MDS

INDICATION

Many patients with MDS require supportive care. The aim of supportive care is to maintain the count at a point where quality of life is maintained.

The objective of this guideline is to help clinicians identify groups of MDS patients who might respond to erythropoietin (Epo) and to offer guidance on the management of MDS patients requiring Epo and/or G-CSF.

Investigations prior to starting Epo

• FBC • Creatinine (for estimated GFR) • Serum epo level measured at the Hb nadir prior to transfusion • Ferritin • Fe/TIBC ratio or equivalent (if ferritin<500) • Bone marrow karyotype, blast percentage, ring sideroblast percentage • Record BP

Erythropoietins Products- Either short or long acting Epo may be used.

Short acting Epoetin alpha (Eprex) Epoetin beta (NeoRecormon) Epoetin delta (Dynepo)

Long acting Darbepoetin alpha (Aranesp)

1. Erythropoietin in non-sideroblastic MDS subtypes

Eligibility

• IPSS low or int-1 risk disease

In addition patients should have one or both of the following criteria: • Serum Epo <500 iu/ml • Transfusion requirement < 2 units/month

This is a controlled document and therefore must not be changed 1 of 4 ML.26 Use of Authorised by Leukaemia lead Prof Paresh Vyas March 2017 V. 2.0 Erythropoietin in MDS

Myeloid group

Approximately 50% of this group of MDS patients will have a meaningful response to Epo. Patients outside this group are much less likely to respond.

Patients with MDS and excess sideroblasts should be considered for upfront Epo/GCSF combination (see below)

Dosing

• Epoetin (alpha, beta, delta): 10,000 units weekly initially and uptitrate every 4 weeks to a maximum of 30,000 units. If no response is seen after 8 weeks, consider increasing to 60,000 units once per week and/or adding G-CSF according to schedule below.

OR

• Darbepoetin: 500 mcg every three weeks initially and if no response after 8 weeks increase to 300mcg once every week and consider adding G-CSF according to schedule below.

 G-CSF (for patient with inadequate response): Start 300mcg or 263mcg, two to three times per week. Monitor blood count weekly and titrate dose to keep WBC between 6 and 10x109/l.

Response Assessment

An assessment of erythroid response should be made after 8 weeks. If there is a less than 10g/L increase in Hb, the dose of Epo should be increased and G-CSF considered. If there is no response after a further 8 weeks, stop the drugs.

Check BP at each clinic visit

2. Upfront Epo-GCSF (EpoG) combined therapy in sideroblastic subtypes of MDS

Eligibility

Patients with MDS and ring sideroblasts who are IPSS low or int-1 risk with serum epo<500iu/ml and/or transfusion requirement <2 units/month

Dosing

Start with epoietin (alpha, beta, delta) 10,000 units weekly uptitrated 4 weekly to maximum of 30 000units or darbepoietin 500mcg every three weeks with G-CSF added incrementally as described above.

Response Assessment

Check response after 8 weeks, if increment in Hb <10g/L, increase epoietin to 60,000 units weekly or darbepoietin to 300mcg weekly. Re-assess response after 8 weeks, if increment in Hb <10g/L, stop Epo-G. This is a controlled document and therefore must not be changed 2 of 4 ML.26 Use of Authorised by Leukaemia lead Prof Paresh Vyas March 2017 V. 2.0 Erythropoietin in MDS

Myeloid group

Check BP at each clinic visit

3. Follow-up monitoring

• FBC (aim for Hb 100-120g/L, higher Hbs are associated with poorer overall survival). Reduce Epo dose by 25% if rise in Hb is too rapid.

• BP (if systolic >150 or diastolic >100, consider Epo dose reduction of 25%)

• If response to Epo suboptimal consider oral iron (Ferrous Sulphate) 200mg daily

4. Loss of response to Epo

Median duration response is about 24 months. Loss of response to Epo does not necessarily herald transformation but the status of the MDS should be re-evaluated. Stop Epo if response is lost.

This is a controlled document and therefore must not be changed 3 of 4 ML.26 Use of Authorised by Leukaemia lead Prof Paresh Vyas March 2017 V. 2.0 Erythropoietin in MDS

Myeloid group

International prognostic scoring system (IPSS) for MDS

Prognostic Variable Score Value 0 0.5 1.0 1.5 2.0 BM blasts (%) <5 5-10 11-20 21-30

* Karyotype Good Intermediate Poor Cytopenias 0/1 2/3

Scores for risk groups are as follows: Low, 0; INT-1, 0.5-1.0; INT-2, 1.5-2.0; High, > 2.5.

* Good, normal, -Y, del(5q), del(20q); Poor, complex (> 3 abnormalities) or chromosome 7 anomalies; Intermediate, other abnormalities.

References

1. Killick S et al Guidelines for the diagnosis and management of adult myelodysplastic syndromes. British Journal Of Haematology 2014;164:503-25 2. Jädersten M, Montgomery SM, Dybedal I, Porwit-MacDonald A, Hellström-Lindberg E. Long-term outcome of treatment of in MDS with erythropoietin and G-CSF. Blood. 2005 Aug 1;106(3):803-11. 3. Greenberg P, Cox C, LeBeau MM, Fenaux P, Morel P, Sanz G, Sanz M, Vallespi T, Hamblin T, Oscier D, Ohyashiki K, Toyama K, Aul C, Mufti G, Bennett J. International scoring system for evaluating prognosis in myelodysplastic syndromes. Blood. 1997 Mar 15;89(6):2079-88.

REVIEW

Name Revision Date Version Review date

Dr Alex Sternberg, Prof Paresh Vyas Re-draft March 2017 v.2.0 March 2019

This is a controlled document and therefore must not be changed 4 of 4 ML.26 Use of Authorised by Leukaemia lead Prof Paresh Vyas March 2017 V. 2.0 Erythropoietin in MDS