A recent study showed that T - VEC in combination with
ipilimumab resulted in an overall response rate of 50 %, durable response rate of 44 %, and tolerable safety profile in patients with advanced melanoma, said Georgina Long, BSc, PhD, MBBS, of the Melanoma Institute Australia in Sydney.
Not exact matches
Ipilimumab as adjuvant therapy significantly improves overall survival in patients with high risk stage III melanoma, according to the EORTC 18071 phase III trial
results presented for the first time at the ESMO 2016 Congress in Copenhagen.
The
results of the trial, which compared a combination of checkpoint inhibitors
ipilimumab and nivolumab against
ipilimumab alone in previously untreated patients, were presented today at the 2015 Annual Meeting of the American Association for Cancer Research and have been simultaneously published in the New England Journal of Medicine.
The first such drug, called
ipilimumab (Yervoy), developed out of Allison's basic science research, showed much lower response rates against advanced melanoma than those obtained with targeted drugs, but long - term follow - up found that 22 percent of those treated with Yervoy survived at least four years, unprecedented
results for the disease.
Dr Butler said: «Our
results show that patients benefited from pembrolizumab regardless of whether or not they had been pre-treated with
ipilimumab.»
A cohort of patients treated with the immune checkpoint inhibitor
ipilimumab (207 patients) showed similar
results.
Dr Larkin said: «
Results from our large analysis of pre-defined sub-groups of patients with advanced melanoma provide evidence that suggests the combination of the two drugs consistently improves progression - free survival across a range of sub-groups, including patients with poor prognostic factors, when compared with either nivolumab or
ipilimumab alone.»
Professor Peter Naredi, the ECCO scientific co-chair of the Congress, who was not involved in the research, commented: «Although the CheckMate 067 study has already reported that a combination of two checkpoint inhibitors, nivolumab and
ipilimumab, is superior to either drug alone, the
results presented here in Vienna have important clinical implications.
These adverse events
resulted in 52 percent of patients on
ipilimumab discontinuing treatment before its completion, including 39 percent of patients during the first four doses of
ipilimumab.
Perhaps most promising are
results from a combination treatment using both
ipilimumab and nivolumab, which the FDA approved in 2015 for previously untreated (first - line) unresectable or metastatic melanoma for patients without a BRAF mutation.
This anti-PD-1 antibody works in a complementary fashion to
ipilimumab and can be combined with it for more powerful
results, as has been recently shown by a clinical trial conducted by CRI Scientific Advisory Council associate director Jedd Wolchok.
The positive
results from the two phase III studies of
ipilimumab were made possible in part through the evolution of the clinical science, which is based on new models of academic - industry partnership to advance immunotherapy development.
At a very early follow - up, nivolumab treatment
resulted in a statistically significant 12 - month relapse - free survival rate compared with
ipilimumab.