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Background: Myelofibrosis (MF) is a blood cancer associated with splenomegaly, blood count abnormalities, reduced life expectancy and high prevalence of disease-associated symptoms. Current treatment options for MF are diverse, with limited data on management strategies in real-world practice in the United Kingdom.Methods: The REALISM UK study was a multi-center, retrospective, non-interventional study, which documented the early management of patients with MF. The primary endpoint was the time from diagnosis to active treatment.Discussion: Two hundred patients were included (63% [n= 126/200] with primary MF; 37% [n= 74/200] with secondary MF). Symptoms and prognostic scores at diagnosis were poorly documented, with infrequent use of patient reported outcome measures. ‘Watch and wait’ was the first management strategy for 53.5% (n= 107/200) of patients, while the most commonly used active treatments were hydroxycarbamide and ruxolitinib. Only 5% of patients proceeded to allogeneic transplant. The median (IQR) time to first active treatment was 46 days (0–350); patients with higher risk disease were prescribed active treatment sooner.Conclusion: These results provide insight into real-world clinical practice for patients with MF in the United Kingdom. Despite the known high prevalence of disease-associated symptoms in MF, symptoms were poorly documented. Most patients were initially observed or received hydroxycarbamide, and ruxolitinib was used as first-line management strategy in only a minority of patients.Plain Language Summary Background:Myelofibrosis is a rare blood cancer associated with symptoms that can seriously affect a patient’s daily life, such as enlarged spleen and decreased white and red blood cells. Although several treatments are available for patients with myelofibrosis, it is not clear which ones clinicians use most frequently. Methods:We aimed to review which treatments are usually given to patients with myelofibrosis in the UK, by collecting information from the medical records of 200 patients with myelofibrosis treated in different centres across the UK. Results:The results showed that the symptoms patients experienced were not always written down in the medical records. Similarly, clinical scores based on patient characteristics (which clinicians use to try to predict if a patient will respond to treatment well or not) were also missing from the medical records. Clinicians also rarely asked patients to complete questionnaires that try to measure the impact of myelofibrosis and its treatment on their health. The most common approach for patients with myelofibrosis in the UK was ‘watch and wait’, which over half of patients received. The most common drugs used for treatment were hydroxycarbamide and ruxolitinib; only a very small proportion of patients received a bone marrow transplant. On average, patients waited for 46 days before receiving a treatment, although patients considered to have a more aggressive type of disease received treatment sooner. Conclusion:The results of this study suggest that medical records can be missing key information, which is needed to decide which is the best way to treat a patient with myelofibrosis. They also suggest that clinicians in the UK prefer observation to treatment for a large number of patients with myelofibrosis. This could mean that the approach used for many patients with myelofibrosis does not help them to control symptoms that have an impact on their daily lives.

SUMMARY The introduction of the tyrosine kinase inhibitor imatinib, a little over a decade ago, has greatly improved the prognosis for patients with chronic myeloid leukemia. Now with the availability of second-generation tyrosine kinase inhibitors we anticipate further improvements in the outcome of this disease. These agents, namely nilotinib, dasatinib and bosutinib, have not only been effective at treatment of imatinib-resistant and/or -intolerant patients, but are increasingly being advocated for upfront usage. In this review, we focus on nilotinib, its pharmacology, clinical indications and side effects, and suggest guidelines for its usage.

Several groups have shown that that the BCR-ABL1 transcript level measured at 3 or 6 months after starting treatment with tyrosine kinase inhibitors strongly predicts clinical outcomes for patients with chronic myeloid leukemia. In this work, we asked whether the prognostic value of the 3-month transcript level could be improved by combining the 3- and 6-month results. We classified patients treated with imatinib and patients treated with dasatinib according to their transcript levels at 3 months and 6 months. The patients who met the 3-month landmark but failed the 6-month one had outcomes identical to those of patients who met both landmarks, whereas the patients who failed the first landmark but met the second one had prognoses similar to those who failed both landmarks. In summary, early intervention strategies can be based robustly just on the transcript level at 3 months. This trial was registered at http://www.clinicaltrials.govas # NCT01460693.

Several groups have shown that that the BCR-ABL1 transcript level measured at 3 or 6 months after starting treatment with tyrosine kinase inhibitors strongly predicts clinical outcomes for patients with chronic myeloid leukemia. In this work, we asked whether the prognostic value of the 3-month transcript level could be improved by combining the 3- and 6-month results. We classified patients treated with imatinib and patients treated with dasatinib according to their transcript levels at 3 months and 6 months. The patients who met the 3-month landmark but failed the 6-month one had outcomes identical to those of patients who met both landmarks, whereas the patients who failed the first landmark but met the second one had prognoses similar to those who failed both landmarks. In summary, early intervention strategies can be based robustly just on the transcript level at 3 months. This trial was registered at www.clinicaltrials.gov as # NCT01460693.

The impact of Coronavirus disease 2019 (COVID-19) on outcomes in patients with cancer remains unclear. Acute Myeloid Leukemia (AML)/high-risk myelodysplasia (MDS) are common hematological malignancies resulting in profound immunosuppression, which is exacerbated by intensive and less-intensive chemotherapy. Importantly, venetoclax based regimens have been increasingly used during the pandemic as a strategy to reduce patient hospitalization however, there is little information concerning the impact of such regimens on COVID-19 infection rates. We therefore opened a prospective clinical study (PACE), at the start of the current pandemic in April 2020 to characterize the risk of COVID-19 infection in patients with AML/MDS-EB2 receiving intensive or non-intensive treatment, including patients treated with venetoclax-based regimens.

Loke: Novartis: Other: Travel; Janssen: Honoraria; Amgen: Honoraria; Pfizer: Honoraria; Daichi Sankyo: Other: Travel. Knapper: Pfizer: Consultancy, Speakers Bureau; Astellas: Ended employment in the past 24 months, Speakers Bureau; Jazz: Consultancy, Speakers Bureau; Novartis: Consultancy, Research Funding, Speakers Bureau. Khan: Abbvie: Honoraria; Astellas: Honoraria; Takeda: Honoraria; Jazz: Honoraria; Gilead: Honoraria; Novartis: Honoraria. Dillon: Amgen: Other: Research support (paid to institution); Astellas: Consultancy, Other: Educational Events , Speakers Bureau; Menarini: Membership on an entity's Board of Directors or advisory committees; Novartis: Membership on an entity's Board of Directors or advisory committees, Other: Session chair (paid to institution), Speakers Bureau; Pfizer: Consultancy, Membership on an entity's Board of Directors or advisory committees, Other: educational events; Jazz: Other: Education events; Abbvie: Consultancy, Membership on an entity's Board of Directors or advisory committees, Other: Research Support, Educational Events; Shattuck Labs: Membership on an entity's Board of Directors or advisory committees. Culligan: AbbVie Ltd: Honoraria, Speakers Bureau; Celgene Ltd: Honoraria, Speakers Bureau; Gilead: Honoraria, Speakers Bureau; Jazz Pharma: Honoraria, Speakers Bureau; Takeda UK Ltd: Honoraria, Speakers Bureau. McMullin: Bristol Myers Squibb: Membership on an entity's Board of Directors or advisory committees, Other: clinical trial support, Research Funding; Celgene: Membership on an entity's Board of Directors or advisory committees, Speakers Bureau; AbbVie: Membership on an entity's Board of Directors or advisory committees, Speakers Bureau; Novartis: Membership on an entity's Board of Directors or advisory committees, Speakers Bureau; AOP Orphan: Research Funding, Speakers Bureau. Murthy: Abbvie: Other: support to attend educational conferences.. Craddock: Novartis Pharmaceuticals: Other: Advisory Board ; Celgene/BMS: Membership on an entity's Board of Directors or advisory committees, Research Funding.

Background:

Mead: Pfizer: Consultancy; Novartis: Consultancy, Honoraria, Other: Travel/accommodation expenses, Research Funding, Speakers Bureau; Bristol Myers-Squibb: Consultancy. Somervaille:Novartis: Consultancy, Honoraria. Butt:Novartis: Consultancy, Honoraria, Speakers Bureau. Whiteway:Novartis: Consultancy, Honoraria, Speakers Bureau. Kirkpatrick:Novartis: Consultancy, Honoraria. Roughley:Novartis: Consultancy, Honoraria. Ewing:Novartis: Honoraria, Other: Meeting attendance sponsorship ; Bristol Myers-Squibb: Other: Meeting attendance sponsorship . Garg:Novartis: Consultancy, Honoraria. Harrison:Promedior: Honoraria; Shire: Speakers Bureau; Sierra Oncology: Honoraria; Celgene: Honoraria, Speakers Bureau; Roche: Honoraria; Novartis: Honoraria, Research Funding, Speakers Bureau; Incyte: Speakers Bureau; Gilead: Speakers Bureau; CTI: Speakers Bureau; AOP: Honoraria; Janssen: Speakers Bureau. Bains:Novartis: Employment. Chiu:Novartis: Employment. Hickey:OPEN VIE: Employment.

Introduction

Byrne: Ariad/Incyte: Honoraria, Speakers Bureau. Ewing:Novartis: Honoraria, Other: Meeting attendance sponsorship ; Bristol Myers-Squibb: Other: Meeting attendance sponsorship . Mead:Novartis: Consultancy, Honoraria, Other: Travel/accommodation expenses, Research Funding, Speakers Bureau; Bristol Myers-Squibb: Consultancy; CTI: Honoraria, Research Funding; Pfizer: Consultancy; Celgene: Consultancy, Research Funding. Oakervee:Novartis: Honoraria; Pfizer: Honoraria; Bristol Myers-Squibb: Honoraria. Campbell:Novartis: Consultancy, Other: Educational support; Takeda: Consultancy, Other: Educational support; Bristol Myers-Squibb: Other: Educational support; Roche: Other: Educational support; Celgene: Other: Educational support. Amott:Celgene: Other: Meeting attendance sponsorship . Goringe:Novartis: Consultancy, Other: Speaker. Heartin:Celgene: Other: Speaker's fees; Janssen: Other: Speaker's fees; Takeda: Other: Speaker's fees; Alexion: Other: Speaker's fees; Novartis: Other: Speaker's fees. Dimitriadou:Celgene: Other: Meeting attendance sponsorship . Arami:Takeda: Other: Meeting attendance sponsorship ; Gilead: Other: Meeting attendance sponsorship ; Roche: Other: Meeting attendance sponsorship ; Celgene: Other: Meeting attendance sponsorship . Neelakantan:Novartis: Honoraria; Celgene: Honoraria. Frewin:Novartis: Consultancy, Other: Meeting attendance sponsorship ; AbbVie: Other: Meeting attendance sponsorship . Pillai:Celgene: Honoraria. De Lavallade:BMS: Honoraria, Research Funding, Speakers Bureau; Pfizer: Honoraria, Speakers Bureau; Novartis: Honoraria, Speakers Bureau; Incyte biosciences: Honoraria, Research Funding, Speakers Bureau. Cross:Novartis: Consultancy, Research Funding; Incyte: Consultancy. Thompson:Incyte: Employment.

Abstract 68This icon denotes a clinically relevant abstract

Goldman: Novartis, Bristol Myers-Squibb, and Amgen: Honoraria. Marin:BMS: Research Funding; Novartis: Research Funding.

Goldman: Novartis, Bristol Myers-Squibb, and Amgen: Honoraria. Marin:Novartis: Research Funding; BMS: Research Funding.

Abstract 3760