“I’ve been diagnosed with CML. What’s the best initial treatment for me?” Dr N M Butt Consultant Haematologist Royal Liverpool University Hospital 11th October 2014 CML: cause treatment Tyrosine Kinase Inhibitors (TKI’s) • • • • • • Ph+ chromosome Abnormal BCR-ABL fusion gene abnormal fusion protein This protein – “enzyme” - Tyrosine Kinase (TK) TKs control cell growth BCR-ABL protein has abnormal tyrosine kinase (TK) activity. Produces unregulated growth of white blood cells which is typical for CML. • Treatment targeted to block (inhibit) TK activity (TKIs) of BCR-ABL has revolutionized the treatment of CML in the past 15 years TKIs in CML Off patent 2016 Imatinib Development License NICE approved Dasatinib Nilotinib Bosutinib Ponatinib (radotinib) CDF 2000 2005 2010 2015 What’s the best initial treatment for me? • It depends… – …on the phase of disease at diagnosis**. – …on the availability of a clinical trial. – …on what drugs are funded**. – …on clinician / patient choice. Phases of disease at diagnosis • Chronic phase • Accelerated phase • Blast crisis What’s the best initial treatment for me? • It depends… – …on the phase of disease at diagnosis**. – …on the availability of a clinical trial. – …on what drugs are funded**. – …on clinician / patient choice. What’s the best initial treatment for me? • It depends… – …on the phase of disease at diagnosis**. – …on the availability of a clinical trial. – …on what drugs are funded**. – …on clinician / patient choice. Clinical Trials Benefits / Advantages Risk / Disadvantages • Gain access to new drugs that may be better for your condition than standard treatments. • Treatment and progress may be monitored more closely than if you were receiving the usual treatment. • Help others in contributing to medical research • You cannot be sure of the outcome. • New treatment may not be as effective as standard treatments. • It is possible that you will experience unexpected, serious or life threatening side effects. • Likely to involve more frequent hospital visits, more tests, more monitoring than you would if you were receiving the standard treatment in usual care. Clinical trials in newly diagnosed CML • • • • • • • • IRIS – IFN V IM SPIRIT – IM with / without IFN , Ara-C SPIRIT2 – IM V DAS DASISION – IM V DAS ENESTnd - IM V NIL BELA – BOS V IM EPIC – PON V IM ……… Clinical trials • Currently no national CML trials open • SPIRIT3 in pipeline…. • Liverpool – BFORE study – BOS V IM (similar to BELA – BOS dose reduced reduced side effects maintain positive features / advantages over IM) What’s the best initial treatment for me? • It depends… – …on the phase of disease at diagnosis**. – …on the availability of a clinical trial. – …on what drugs are funded**. – …on clinician / patient choice. What’s the best initial treatment for me? • It depends… – …on the phase of disease at diagnosis**. – …on the availability of a clinical trial. – …on what drugs are funded**. – …on clinician / patient choice. In the absence of a clinical trial, which drug? Imatinib? Nilotinib? Dasatinib? Bosutinib? Ponatinib? Which drugs are routinely funded for newly diagnosed CML? • Currently – Accelerated / Blast crisis phase CML : - Imatinib (high dose) Which drugs are routinely funded for newly diagnosed CML? • Currently – Chronic phase CML - only two drugs are approved for funding by National Institute for Health and Care Excellence (NICE) for newly diagnosed CML: - Imatinib - Nilotinib TKIs in CML Off patent 2016 Imatinib Development License NICE approved Dasatinib Nilotinib Bosutinib Ponatinib (radotinib) CDF 2000 2005 2010 2015 Which drugs are not routinely funded for newly diagnosed CML? • Dasatinib - no trials directly comparing DAS and NIL - indirect comparisons between DAS and NIL suggest equally as effective - DOH and the manufacturer of NIL agreed to provide the drug to the NHS at a discounted price. - Cost reduction enabled NICE approval NIL for use on the NHS. - (NB DAS is funded via Cancer Drug Fund (CDF) for IM/NIL failure or intolerant) Which drugs are not routinely funded for newly diagnosed CML? • Bosutinib (NICE – only review for previously treated CML – [not approved Nov 2013] – not newly diagnosed); CDF funded – CML failed NIL or DAS) • Ponatinib (not reviewed NICE ; CDF funded for CML with specific mutation - T315I – makes condition resistant to other TKIs) Of drugs which are routinely funded for newly diagnosed CML…. Imatinib versus Nilotinib? What’s the best initial treatment for me? • It depends… – …on the phase of disease at diagnosis**. – …on the availability of a clinical trial. – …on what drugs are funded**. – …on clinician / patient choice. ENESTnd Study Design and Endpoints • N = 846 • 217 centers • 35 countries R Nilotinib 300 mg BID (n=282) A N D O Nilotinib 400 mg BID (n=281) M I Z Imatinib 400 mg QD (n=283) E D*Stratification by Sokal risk score * • Primary endpoint: • Secondary endpoint: • Other endpoints: Follow-up 5 years MMR at 12 months CCyR by 12 months time to and duration of MMR and CCyR, EFS, PFS, time to AP/BC, OS Nilotinib is Superior to Imatinib: CCyR Rates p<0.0001 % CCyR p=0.0005 Nilotinib Leads to Faster / Deeper p<0.0001 Responses 60 p<0.0001 % MMR Percentage 50 44 43 38 40 33 30 30 22 18 20 10 43 12 9 5 1 0 Month 3 Nilotinib 300 mg BID Month 6 Month 9 Nilotinib 400 mg BID Month 12 Imatinib 400 mg QD BUT…. • the trade off…?? • IM (once daily) versus NIL (twice daily**) • Dietary restriction** NIL - No food should be consumed for 2 hours before the dose is taken and no food should be consumed for at least one hour after the dose is taken. • Poor compliance** affects response ENESTnd (nilotinib) Cardiovascular Events by 5 Years Nilotinib 300 mg BID (n = 279) Total, Y1-4, Y5, b n (%) n nc Nilotinib 400 mg BID (n = 277) Total, Y1-4, Y5, b n (%) n nc Imatinib 400 mg QD (n = 280) Total, Y1-4, n (%) nb Total patients with CVEs 21 (7.5) 37 (13.4) 6 (2.1) Ischemic heart disease 18 4 11 (3.9) 11 0 Ischemic cerebrovascular events 4 (1.4) 3 1 Peripheral artery disease 7 (2.5) 4 3 24 14 14 10 9 (3.2) 5 7 (2.5) 5 24 (8.7) Y, year. a All events, regardless of relationship to study drug. b Data cutoff: July 27, 2012 (minimum follow-up of 48 cycles). c Events reported between the 48-cycle and 60-month data cutoffs. CVE, cardiovascular event. Y5, nc 4 2 5 (1.8) 3 2 4 1 (0.4) 1 0 2 0 0 0 Data cutoff: September 30, 2013 26 What’s the best initial treatment for me? • It depends… – …on the phase of disease at diagnosis**. – …on the availability of a clinical trial. – …on what drugs are funded**. – …on clinician / patient choice. What’s the best initial treatment for me? • It depends… – …on the phase of disease at diagnosis**. – …on the availability of a clinical trial. Liverpool – BFORE study; SPIRIT3 in due course – …on what drugs are funded**. UK – AP/BC – Imatinib; UK – CP - Imatinib and Nilotinib – …on clinician / patient choice. Liverpool - Favour Imatinib with very close response monitoring Thank You