Amgen Announces Top-Line Results Of Phase 3 Trebananib (AMG 386) TRINOVA-1
Trial In Recurrent Ovarian Cancer
Study Meets Primary Endpoint of Progression-Free Survival
THOUSAND OAKS, Calif., June 12, 2013
THOUSAND OAKS, Calif., June 12, 2013 /PRNewswire/ -- Amgen (NASDAQ: AMGN)
today announced that the Phase 3 TRINOVA-1 trial evaluating trebananib plus
paclitaxel versus placebo plus paclitaxel in recurrent ovarian cancer met its
primary endpoint of progression-free survival (PFS). A statistically
significant difference was observed in PFS with a 34 percent reduction in the
risk of disease progression or death (HR = 0.66, 95 percent CI, 0.57, 0.77,
p<0.001). The median PFS was 7.2 months in the trebananib arm versus 5.4
months in the control arm.
The primary analysis of overall survival (OS), a key secondary endpoint, is
expected to mature in 2014 in line with previous guidance. Although an early
imbalance of deaths favoring the control arm was observed, there was an
overall favorable OS trend for trebananib in a pre-planned interim analysis.
"The TRINOVA-1 study is the first of three Phase 3 trials designed to evaluate
the safety and efficacy of trebananib in patients with ovarian cancer," said
Sean E. Harper, M.D., executive vice president of Research and Development at
Amgen. "Angiopoietin inhibition has been a focus of research at Amgen and
these results suggest that the novel biology of trebananib may offer a
promising approach for patients with ovarian cancer."
In the trebananib arm, the most frequently reported adverse events were
localized edema, nausea and alopecia. The rate of discontinuation of
investigational product due to adverse events was 20 percent in the trebananib
arm versus seven percent in the control arm.
Approximately 22,240 new cases of ovarian cancer will be diagnosed in the
United States in 2013.^1 More than 70 percent of women with ovarian cancer
will present with advanced disease at diagnosis and up to 80 percent of them
will experience disease recurrence and eventually die from their disease.^2,3
TRINOVA-1 Trial Design (NCT01204749)
TRINOVA-1 is a Phase 3 global, multicenter, randomized, double-blind,
placebo-controlled study evaluating trebananib in over 900 women with
recurrent partially platinum-sensitive or-resistant (platinum-free interval
of 12 months or less) epithelial ovarian, primary peritoneal or fallopian tube
cancer. Patients were randomized 1:1 to receive either 15 mg/kg of intravenous
trebananib weekly plus 80 mg/m^2 of intravenous paclitaxel weekly (three weeks
on, one week off) or weekly intravenous placebo plus 80 mg/m^2 of intravenous
paclitaxel weekly (three weeks on, one week off).
Other ongoing Phase 3 studies of trebananib include TRINOVA-2 and TRINOVA-3.
TRINOVA-2 is evaluating whether trebananib plus pegylated liposomal
doxorubicin (PLD) is superior to placebo plus PLD as measured by PFS in
recurrent epithelial ovarian, primary peritoneal or fallopian tube cancer.
TRINOVA-3 is evaluating trebananib or placebo in combination with paclitaxel
and carboplatin in the first-line treatment of epithelial ovarian, primary
peritoneal or fallopian tube cancer.
Trebananib is an investigational peptibody designed to inhibit the
angiopoietin axis. The angiopoietin axis is involved in angiogenesis, a
process used by the body to grow new blood vessels, which is also involved in
the pathogenesis of several diseases. Trebananib is designed to bind to both
angiopoietin-1 and -2 (Ang1 and Ang2), and inhibit their interaction with the
Tie2 receptor.^4,5,6 Ang1 and Ang2 each mediate separate actions upon binding
with Tie2.^7,8 Ang1 impacts vessel quality while Ang2 influences vessel
quantity. The angiopoietins are also involved in lymphangiogenesis, the
formation of new lymphatic vessels, which plays a key role in tumor
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against serious illnesses. With a deep and broad pipeline of potential new
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^1 Ovarian Cancer Key Statistics, American Cancer Society website. Available
Accessed March 26, 2013.
^2 Martin L.P., Semin Oncol. 2009.
^3 NCCN Ovarian Cancer 2013 Guidelines.
^4 Herbst R.S., Expert Opin Emerg Drugs. 2006;11:635-650.
^5 Carmeliet P., Jain R.K., Nature. 2000;407:249-257.
^6 Folkman J., Nat Rev Drug Discov. 2007;6:273-286.
^7 Falcon B.L., Hashizume H., Koumoutsakos P., et al., Am J Pathol.
^8 Ahmad S.A., Liu W., Jung Y.D., et al., Cancer Res. 2001;61:1255-1259.
^9 Huang H., Bhat A., Woodnutt G., et al., Nat Rev Cancer. 2010;10:575-585.
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