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Background Cisplatin and fluoropyrimidine (CF) are standard first- line treatment in advanced gastric cancer, but no second-line treatment has yet been established. We present a phase II study in which we evaluated the efficacy and toxicity of the combination of Sorafenib (S), and Oxaliplatin as second-line therapy. Methods Patients with progressive gastric adenocarcinoma after CF- first-line, ECOG 0-2, and measurable disease were included. The primary objective was PFS. Treatment doses were Oxaliplatin 130 mg/m/3 weeks and Sorafenib 800 mg/bid/d. Results We included 40 patients. CR was 2.5 % and SD was 47.2 %. Grade 3-4 toxic effects were neutropenia (9.8 %), thrombocytopenia (7.3 %), neurotoxicity (4.9 %) and diarrhea (4.9 %). Median PFS was 3 months (95 %CI: 2.3-4.1) and median OS was 6.5 months (95 % CI: 5.2-9.6). Time to progression (TTP) to first line therapy was a prognosis factor. Median OS was 9.7 months when time-to-progression during first-line chemotherapy was >6 months and 5.6 m when it was <6 months ( p = 0.04). Conclusions Time-to-progression under a CF-based first-line therapy determines subgroups of GC patients with different prognosis. The combination of Oxaliplatin-Sorafenib in advanced GC patients previously treated with CF appears safe, but our results do not support the implementation of a phase III trial. [ABSTRACT FROM AUTHOR]

The addition of antibiotics to intravaginal sponges used to synchronize ewe estrus is currently a recommended practice for the prevention of posttreatment vaginal infections. Application of this antibiotic treatment is usually done without withdrawal periods for milk, but official pharmaceutical instructions do not consider the extra-label use of antibiotics, Which could result in the presence of antibiotic residues in milk. To understand the effects of the use of antibiotics on the performance of these hormonal treatments, milk collected from a group of Manchega ewes estrus synchronized by intravaginally inserted progestagen sponges jointly impregnated with antibiotics (benzyl penicillin procaine: 1,000,000 IU/25 sponges plus DH-streptomycin: 1 g/25 sponges) was evaluated for antibiotic residue persistence with 5 types of antibiotic screening tests (BRT, Copan CMT, Delvotest MSC, Eclipse 100, and New SNAP Beta-Lactams). Time to antibiotic residue depletion was established by a logistic regression model, and a significant response to milking order was observed in all methods. Positive or doubtful tests were observed after the insertion of intravaginal sponges for all assay screening tests at the time of the first milking and sometimes afterwards. [ABSTRACT FROM AUTHOR]