The biotech specialist said that its updated phase 2 data in a study of its poziotinib candidate treatment for non-small cell lung cancer resulted in a preliminary
confirmed objective response rate and potential progression - free survival benefit in patients with the EGFR Exon 20 Mutant form of the disease.
Data from these two trials also showed
an objective response rate of 72 percent among the 18 patients who met criteria for what was defined as a phase II - eligible population.
«Although still only in an early phase trial, brigatinib is showing
an objective response rate in approximately 70 percent of ALK - positive patients post-crizotinib and it's showing about a year of progression - free survival.
The objective response rate (defined as the proportion of complete response and partial responses among all evaluable patients) was also higher with chemotherapy (92/549, 16.8 percent) compared with TKI (39/540, 7.2 percent).
In addition to helping patients live longer, more patients treated with pembrolizumab responded to treatment and for a longer duration than those treated with chemotherapy;
the objective response rate — the percentage of patients whose tumours shrank or disappeared — was almost twice as high with pembrolizumab: 21 % compared to 11 % on chemotherapy.
The objective response rate, the primary endpoint for the study, was 16 percent (3 of 19).
In the pooled analysis,
the objective response rate was 11 % for nivolumab and 22 % for nivolumab plus ipilimumab.
The objective response rate for the combination was 23 %; for nivolumab monotherapy, it was 11 %.
The objective response rate was 37.1 % and 60.4 % in the mucosal and cutaneous melanoma groups, respectively, and median progression - free survival was 5.9 months vs 11.7 months.
Previously, nivolumab plus ipilimumab had improved progression - free survival (PFS) and
objective response rate (ORR) vs ipilimumab alone in the phase II CheckMate 069 and phase III CheckMate 067 trials of treatment - naive patients with advanced melanoma.
Although lack of effectiveness in the advanced setting does not preclude efficacy in the adjuvant setting, our retrospective single - center study of advanced mucosal melanoma yielded
an objective response rate of only 10 % to alkylator - based cytotoxic therapy, suggesting a general lack of efficacy for chemotherapy in this disease.
A study of this combination showed that trametinib / dabrafenib resulted in
an objective response rate of 76 % compared with 54 % in patients treated with the BRAF inhibitor alone.
Patients receiving the combination had
an objective response rate of 50 %, compared to 40 % for nivolumab and 14 % for ipilimumab — an increase greater than either drug alone.
Interim phase II results [12] of first treatment with electroporation of IL - 12 in 28 patients with advanced melanoma, after 24 weeks of treatment, reported at the American Society of Clinical Oncology 2014 Annual Meeting, revealed a 32.2 %
objective response rate (ORR; the primary endpoint), with a CR in 10.7 %.
The objective response rate to the therapy was 22 %, with a slightly higher response rate (23 % vs 15 %) among those on a weekly dosing schedule than those on an every -3-weeks schedule.