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A phase I, open-label dose-escalation study of continuous treatment with BIBF 1120 in combination with paclitaxel and carboplatin as first-line treatment in patients with advanced non-small-cell lung cancer.

ABSTRACT: BACKGROUND:BIBF 1120 is an oral potent inhibitor of vascular endothelial growth factor receptor, fibroblast growth factor receptor and platelet-derived growth factor receptor, the three key receptor families involved in angiogenesis. This phase I, open-label dose-escalation study investigated BIBF 1120 combined with paclitaxel (Taxol) and carboplatin in first-line patients with advanced (IIIB/IV) non-small-cell lung cancer. PATIENTS AND METHODS:Patients received BIBF 1120 (starting dose 50 mg b.i.d.) on days 2-21 and paclitaxel (200 mg/m2) and carboplatin [area under curve (AUC)=6 mg/ml/min] on day 1 of each 21-day cycle. Primary end points were safety and BIBF 1120 maximum tolerated dose (MTD) in this combination. Pharmacokinetics (PK) profiles were evaluated. RESULTS:Twenty-six patients were treated (BIBF 1120 50-250 mg b.i.d.). BIBF 1120 MTD was 200 mg b.i.d. in combination with paclitaxel and carboplatin. Six dose-limiting toxicity events occurred during treatment cycle 1 (liver enzyme elevations, thrombocytopenia, abdominal pain, and rash). Best responses included 7 confirmed partial responses (26.9%); 10 patients had stable disease. BIBF 1120 200 mg b.i.d. had no clinically relevant influence on the PK of paclitaxel 200 mg/m2 and carboplatin AUC 6 mg/ml/min and vice versa. CONCLUSIONS:BIBF 1120 MTD was 200 mg b.i.d when given with paclitaxel and carboplatin; this combination demonstrated an acceptable safety profile. No relevant changes in PK parameters of the backbone chemotherapeutic agents or BIBF 1120 were observed.

SUBMITTER: Doebele RC

PROVIDER: S-EPMC4141207 | biostudies-literature | 2012 Aug

REPOSITORIES: biostudies-literature

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A phase I, open-label dose-escalation study of continuous treatment with BIBF 1120 in combination with paclitaxel and carboplatin as first-line treatment in patients with advanced non-small-cell lung cancer.

Doebele R C RC Conkling P P Traynor A M AM Otterson G A GA Zhao Y Y Wind S S Stopfer P P Kaiser R R Camidge D R DR

Annals of oncology : official journal of the European Society for Medical Oncology 20120216 8

<h4>Background</h4>BIBF 1120 is an oral potent inhibitor of vascular endothelial growth factor receptor, fibroblast growth factor receptor and platelet-derived growth factor receptor, the three key receptor families involved in angiogenesis. This phase I, open-label dose-escalation study investigated BIBF 1120 combined with paclitaxel (Taxol) and carboplatin in first-line patients with advanced (IIIB/IV) non-small-cell lung cancer.<h4>Patients and methods</h4>Patients received BIBF 1120 (startin ...[more]

PMID: 22345119

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Project description:Lessons learnedDespite involvement of PI3K pathway activation in tumorigenesis of solid tumors, single-agent PI3K inhibitors have shown modest clinical activity.Preclinical evidence suggests that combining PI3K pathway inhibitors and chemotherapy can enhance antitumor effects.In patients with solid tumors, the PI3K inhibitor pilaralisib had a favorable safety profile but did not enhance the antitumor activity of paclitaxel plus carboplatin.Further clinical evaluation is warranted to identify effective combination strategies with PI3K pathway inhibitors.BackgroundPilaralisib (SAR245408) is an oral, pan-class I phosphoinositide 3-kinase (PI3K) inhibitor. This phase I dose-escalation study evaluated the maximum tolerated dose (MTD), safety, pharmacokinetics (PK), and pharmacodynamics of pilaralisib in capsule and tablet formulations, administered in combination with paclitaxel and carboplatin in patients with advanced solid tumors.MethodsA 3 + 3 design was used. Pilaralisib was administered once daily (QD); paclitaxel (up to 175 mg/m2) and carboplatin (up to area under the curve [AUC] of 6) were administered on day 1 of 21-day cycles. An MTD expansion cohort of patients with endometrial carcinoma was included.ResultsFifty-eight patients were enrolled. Six patients (10.3%) had dose-limiting toxicities, of which only rash (two patients, 3.4%) occurred in more than one patient. The MTD of pilaralisib tablets in combination with paclitaxel and carboplatin was determined to be 200 mg QD. The most frequently reported adverse events (AEs) of any grade were neutropenia (67.2%) and thrombocytopenia (67.2%). PK data showed no interaction between pilaralisib and paclitaxel/carboplatin. Tumor tissue showed moderate inhibition of PI3K and mitogen-activated protein kinase (MAPK) pathways. Seven of 52 evaluable patients had a partial response (PR; 13.5%).ConclusionPilaralisib had a favorable safety profile but did not enhance the antitumor activity of paclitaxel plus carboplatin in solid tumors. The Oncologist 2017;22:377-378.

Dataset Information

A phase I, open-label dose-escalation study of continuous treatment with BIBF 1120 in combination with paclitaxel and carboplatin as first-line treatment in patients with advanced non-small-cell lung cancer.

Publications

A phase I, open-label dose-escalation study of continuous treatment with BIBF 1120 in combination with paclitaxel and carboplatin as first-line treatment in patients with advanced non-small-cell lung cancer.

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