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AML with Myelodysplasia-Related Changes: Development, Challenges, and Treatment Advances.

ABSTRACT: Acute myeloid leukemia (AML) with myelodysplasia-related changes (AML-MRC) is a distinct biologic subtype of AML that represents 25-34% of all AML diagnoses and associates with especially inferior outcomes compared to non-MRC AML. Typically, patients with AML-MRC experience low remission rates following intensive chemotherapy and a median overall survival of merely 9-12 months. In light of these discouraging outcomes, it has become evident that more effective therapies are needed for patients with AML-MRC. Liposomal daunorubicin-cytarabine (CPX-351) was approved in 2017 for adults with newly diagnosed AML-MRC and those with therapy-related AML (t-AML), and remains the only therapy specifically approved for this patient population. Other studies have also demonstrated the efficacy of the hypomethylating agent (HMA) azacitidine as upfront therapy for AML-MRC patients, which, to date, is the most common treatment employed for patients unable to tolerate the more intensive CPX-351. HMAs and venetoclax combinations have also been evaluated, but additional studies utilizing these agents in this specific subgroup are needed before conclusions regarding their role in the therapeutic armamentarium of AML-MRC patients can be reached. Currently, many studies are ongoing in attempts to further improve outcomes in this historically ill-fated patient group.

SUBMITTER: Koenig KL

PROVIDER: S-EPMC7464320 | biostudies-literature | 2020 Jul

REPOSITORIES: biostudies-literature

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AML with Myelodysplasia-Related Changes: Development, Challenges, and Treatment Advances.

Koenig Kristin L KL Sahasrabudhe Kieran D KD Sigmund Audrey M AM Bhatnagar Bhavana B

Genes 20200724 8

Acute myeloid leukemia (AML) with myelodysplasia-related changes (AML-MRC) is a distinct biologic subtype of AML that represents 25-34% of all AML diagnoses and associates with especially inferior outcomes compared to non-MRC AML. Typically, patients with AML-MRC experience low remission rates following intensive chemotherapy and a median overall survival of merely 9-12 months. In light of these discouraging outcomes, it has become evident that more effective therapies are needed for patients wi ...[more]

PMID: 32722092

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Project description:BackgroundCurrent national estimates for acute myelogenous leukemia (AML) indicate this disease accounts for 1.1% of new cancer diagnoses and 1.8% of cancer deaths in the United States. The 5-year overall survival rate for patients with AML was 27.4% between 2008 and 2014. The standard induction for patients with AML includes cytarabine, infused for 7 days, with 3 once-daily injections of an anthracycline, such as daunorubicin, known as the 7+3 regimen. Daunorubicin plus cytarabine liposomal encapsulation for injection was approved in the United States in 2017 for adults with newly diagnosed therapy-related AML (tAML) or AML with myelodysplasia-related changes (AML-MRC).ObjectiveTo estimate the annual budget impact of introducing daunorubicin-cytarabine liposome as induction treatment for patients with tAML or AML-MRC in the United States over a 3-year period.MethodsThe model consisted of a simple decision analytic framework for a 1- to 3-year period. We used an incidence-based approach to estimate the annual number of patients newly diagnosed with tAML or AML-MRC in a hypothetical 1-million-member plan. Patients were allocated to 2 groups based on when daunorubicin-cytarabine liposome became available, with the base-case group allocated to the 7+3 regimen, and another group allocated to daunorubicin-cytarabine liposome treatment. The incidence of AML was estimated as 4.3 per 100,000 people. Efficacy measures included the proportion of complete responders, proportion of patients who had undergone transplantation, and survival at 180 and 365 days. Inpatient drug and hospitalization costs were based on diagnosis-related group rates, and outpatient drug costs on wholesale acquisition costs.ResultsBased on this hypothetical 1-million-member health plan, 15.1 members would receive intensive induction for newly diagnosed tAML or AML-MRC annually. Increasing the use of daunorubicin-cytarabine liposome (assumption of year 1, 20%; year 2, 50%; year 3, 80%) resulted in a 3-year incremental cumulative budget impact of $72,041 (1.7% increase for patients with tAML or AML-MRC), with a per-member per-month cost of $0.0032 at year 3. Over a 3-year period, the use of daunorubicin-cytarabine liposome would result in an estimated increase in the number of patients with a complete response to therapy by 2.72 (23.1%), which would lead to an incremental cost decrease of $179,956 per responding patient compared with the use of the 7+3 regimen in the base-case group.ConclusionsBased on these results, induction treatment with daunorubicin-cytarabine liposome for patients with tAML or AML-MRC instead of the 7+3 regimen may have a limited economic impact on the budget of commercial health plans and may result in cost offsets, particularly in patients who respond to therapy.

Dataset Information

AML with Myelodysplasia-Related Changes: Development, Challenges, and Treatment Advances.

Publications

AML with Myelodysplasia-Related Changes: Development, Challenges, and Treatment Advances.

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