Nimotuzumab Concurrent with Gemcitabine as First-Line Treatment of Locally Advanced or Metastatic Pancreatic Adenocarcinoma
Table 5
Summary of the main results of clinical trials with anti-EGFR+chemotherapy as first-line treatment in patients with locally advanced or metastatic adenocarcinoma of the pancreas.
Study
Arms
mPFS (months)
mOS (months)
Clinical response (%)
Safety concerns
Reference
OSAG Phase IIb (Schultheis et al., 2017)
Nimotuzumab 400 mg+gem () versus gem+placebo ()
5.1 vs. 3.4 (;)
8.6 vs. 6.0 (;)
CR: - PR: 8.6 vs. 8.6 SD: 54.8 vs. 43.0 DC: 63.0 vs. 52.0
The most frequent adverse events were fatigue (21.5% of patients, one patient grade 3), pyrexia (in 16.1%), chills (in 11.8%), and rash (in 15.1%, two patients grade 3)
No statistical difference in the ORR between the two groups ()
The most common grade 3 treatment-related AEs in the nim+gem group were neutropenia (11.1%), leukopenia (8.9%), and thrombocytopenia (6.7%). No grade 4 treatment-related AEs
CR: - PR: 8.0 vs. 7.0 SD: 37 vs. 30 DC: 45.0 vs. 37.0 The ORR was similar in both arms of the study ()
Patients receiving cetuximab+gem: 16% of patients with grade 4-5 toxicities; 7 with grade 5 toxicities; cetuximab was associated with an increased frequency of allergic reactions and skin toxicities including acne and rash. 48% patients with grade 2-3 skin toxicities
Cetuximab+bevacizumab+gem () versus cetuximab+bevacizumab ()
3.55 vs. 1.91
5.41 vs. 4.17
CR: 3.4 vs. 0.0 PR: 10.3 vs. 3.4 SD: 31.0 vs. 24.1 DC: 44.8 vs. 27.6
Patients treated with gemcitabine experienced more grade 3–4 toxicities, including proteinuria and thromboembolic events. The study closed early due to lack of sufficient efficacy in both treatment arms
CR+PR: 8.6 vs. 8.0 SD: 48.9 vs. 41.2 DC: 57.5 vs. 49.2 ()
Patients receiving erlotinib and Gem: higher frequencies of grade 1-2 rash, diarrhea, infection, and stomatitis. Seven patients had an interstitial lung disease- (ILD-) like syndrome possibly related to therapy
Targeted treatment group had a higher frequency of severe grade 3 nausea and vomiting than the conventional treatment group (74.2% vs. 7.1%, respectively)