Reference Detail

Ref Type

Journal Article

PMID

(26540314)

Authors

Leone F, Marino D, Cereda S, Filippi R, Belli C, Spadi R, Nasti G, Montano M, Amatu A, Aprile G, Cagnazzo C, Fasola G, Siena S, Ciuffreda L, Reni M, Aglietta M

Title

Panitumumab in combination with gemcitabine and oxaliplatin does not prolong survival in wild-type KRAS advanced biliary tract cancer: A randomized phase 2 trial (Vecti-BIL study).

Journal	Vol	Issue	Date	Pages	Journal Short Title
Cancer	122	4	2016 Feb 15	574-81	Cancer

URL

Abstract Text

Biliary tract cancer (BTC) is a rare and lethal disease with few therapeutic options. Preclinical data suggest that the epidermal growth factor receptor (EGFR) pathway could be involved in its progression.This open-label, randomized phase 2 trial recruited chemotherapy-naive patients with advanced BTC displaying a wild-type (WT) KRAS status. Patients were randomized to gemcitabine (1000 mg/m(2) ) and oxaliplatin (100 mg/m(2) ) with (arm A) or without (arm B) panitumumab (6 mg/kg) for up to 12 cycles. The primary endpoint was progression-free survival (PFS) analyzed in an intention-to-treat fashion.Eighty-nine patients (45 in arm A and 44 in arm B) were enrolled between June 2010 and September 2013. After a median follow-up of 10.1 months, the median PFS was 5.3 months (95% confidence interval, 3.3-7.2 months) in arm A and 4.4 months (95% confidence interval, 2.6-6.2 months) in arm B (P = .27). No survival differences were observed: the median overall survival was 9.9 months in arm A and 10.2 months in arm B (P = .42). In a subgroup analysis, no differences in PFS according to the site of the primary tumor were observed; patients with intrahepatic cholangiocarcinoma treated with panitumumab may have had a survival benefit in comparison with the control group (15.1 vs 11.8 months, P = .13). As for safety, skin toxicity was the main adverse event in arm A (80% of the patients). A higher incidence of diarrhea (55.5% vs 31.8%), mucositis (22.2% vs 13.6%), and constipation (24.4% vs 15.9%) was seen in arm A.These results confirm the marginal role of anti-EGFR therapy even for WT KRAS-selected BTC.

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Molecular Profile	Treatment Approach

Gene Name	Source	Synonyms	Protein Domains	Gene Description	Gene Role

Therapy Name	Drugs	Efficacy Evidence	Clinical Trials

Drug Name	Trade Name	Synonyms	Drug Classes	Drug Description

Gene	Variant	Impact	Protein Effect	Variant Description	Associated with drug Resistance

Molecular Profile	Indication/Tumor Type	Response Type	Therapy Name	Approval Status	Evidence Type	Efficacy Evidence	References