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Pearl Toh, 18 Feb 2016
Treatment with eluxadoline, a new oral medication, relieved two major symptoms of irritable bowel syndrome with diarrhoea (IBS-D) — abdominal pain and diarrhoea, according to a study based on two phase III randomized controlled trials. [N Engl J Med 2016;374:242-253]
01 Apr 2016
Amiodarone is safe and effective for early junctional ectopic tachycardia prophylaxis in paediatric patients following open heart surgery, based on a study.
Tristan Manalac, 19 May 2018
Taking oral antibiotics appears to increase the risk of nephrolithiasis, according to a recent study. Moreover, the risk seems to be compounded for individuals with recent antibiotic exposure and those who were exposed at a younger age.
Roshini Claire Anthony, 20 Mar 2018

Individuals with type 2 diabetes (T2D) who initiate therapy with sodium glucose cotransporter-2 (SGLT-2) inhibitors have lower risks of all-cause death and cardiovascular (CV) outcomes, specifically myocardial infarction (MI) and stroke, compared with those who initiate other glucose-lowering therapies, according to results from the CVD-REAL* 2 study.

Midostaurin + chemo improves OS in patients with AML and FLT3 mutation

Roshini Claire Anthony
15 Jul 2017

Adding midostaurin to standard chemotherapy appeared to improve overall survival (OS) in patients recently diagnosed with acute myeloid leukaemia (AML) with a FLT3 mutation, according to a recent study.

“[We] determined that midostaurin, a multitargeted kinase inhibitor, led to improved outcomes among younger adults with AML and a FLT3 mutation, a population with a poor prognosis that represents approximately one-fourth of all patients with AML,” said the researchers.

Seven hundred and seventeen patients (median age 47.9 years) with newly diagnosed AML (non-therapy-related) and a FLT3 mutation (either TKD* or ITD** subtype) received oral midostaurin (50 mg twice daily on days 8–21, n=360, 51.7 percent female) or placebo (n=357, 59.4 percent female) in addition to standard chemotherapy (induction therapy with intravenous daunorubicin [60 mg/m2/day on days 1, 2, and 3] and cytarabine [200 mg/m2 on days 1–7] and consolidation therapy [four 28-day cycles of cytarabine 3,000 mg/m2 over 3 hours every 12 hours on days 1, 3, and 5 after complete remission following induction therapy]).

Patients who remained in remission following consolidation therapy were continued on midostaurin or placebo for twelve 28-day cycles. Median follow-up time was 59 months.

Patients assigned to midostaurin had significantly longer OS compared with those on standard chemotherapy only (median 74.7 vs 25.6 months, hazard ratio [HR], 0.78, 95 percent confidence interval [CI], 0.63–0.96; one-sided p=0.009). At 4 years, the OS was 51.4 and 44.3 percent in the midostaurin and standard chemotherapy only groups, respectively. [N Engl J Med 2017;doi:10.1056/NEJMoa1614359]

There was no significant difference in OS rates between FLT3 subtypes, and rate of complete remission was also comparable between patients on midostaurin and standard chemotherapy only (58.9 percent vs 53.5 percent; p=0.15).

Event-free survival was longer in patients receiving midostaurin compared with those receiving standard chemotherapy only (median 8.2 vs 3.0 months, HR, 0.78, 95 percent CI, 0.66–0.93; one-sided p=0.002), as was disease-free survival (median 26.7 vs 15.5 months; p=0.01).

Incidence of grade 3, 4, or 5 (combined) adverse events was comparable between the two groups, though there was a higher incidence of grade 3, 4, or 5 anaemia and rash in the midostaurin compared with the standard chemotherapy only group (92.7 percent vs 87.8 percent; p=0.03 and 14.1 percent vs 7.6 percent; p=0.008, respectively), while the incidence of nausea was higher in the standard chemotherapy only group (9.6 percent vs 5.6 percent; p=0.05).

Fifty-seven percent of patients underwent transplantation at which point trial treatment was discontinued. After censoring data at time of transplantation, 4-year OS was longer in patients on midostaurin compared with those on standard chemotherapy only (63.7 percent vs 55.7 percent; p=0.08).

“Since exposure to the FLT3 inhibitor was relatively brief ... it is probable that the major effect ... was the early reduction of disease burden,” said the researchers, though they did not discount other potential actions. “It is possible that the benefit of midostaurin ... might lie beyond its ability to inhibit FLT3,” they said.

 

 

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Most Read Articles
Pearl Toh, 18 Feb 2016
Treatment with eluxadoline, a new oral medication, relieved two major symptoms of irritable bowel syndrome with diarrhoea (IBS-D) — abdominal pain and diarrhoea, according to a study based on two phase III randomized controlled trials. [N Engl J Med 2016;374:242-253]
01 Apr 2016
Amiodarone is safe and effective for early junctional ectopic tachycardia prophylaxis in paediatric patients following open heart surgery, based on a study.
Tristan Manalac, 19 May 2018
Taking oral antibiotics appears to increase the risk of nephrolithiasis, according to a recent study. Moreover, the risk seems to be compounded for individuals with recent antibiotic exposure and those who were exposed at a younger age.
Roshini Claire Anthony, 20 Mar 2018

Individuals with type 2 diabetes (T2D) who initiate therapy with sodium glucose cotransporter-2 (SGLT-2) inhibitors have lower risks of all-cause death and cardiovascular (CV) outcomes, specifically myocardial infarction (MI) and stroke, compared with those who initiate other glucose-lowering therapies, according to results from the CVD-REAL* 2 study.