Reference Detail

Ref Type

Journal Article

PMID

(29593099)

Authors

Edelman G, Rodon J, Lager J, Castell C, Jiang J, Van Allen EM, Wagle N, Lindeman NI, Sholl LM, Shapiro GI

Title

Phase I Trial of a Tablet Formulation of Pilaralisib, a Pan-Class I PI3K Inhibitor, in Patients with Advanced Solid Tumors.

Journal	Vol	Issue	Date	Pages	Journal Short Title
The oncologist	23	4	2018 04	401-e38	Oncologist

URL

Abstract Text

A phase I study of the pan-class I phosphoinositide 3-kinase inhibitor pilaralisib (in capsule formulation) in advanced solid tumors established the maximum tolerated dose as 600 mg once daily.The current study investigated pilaralisib in tablet formulation.Pilaralisib tablets were associated with a favorable safety profile and preliminary antitumor activity.Based on pharmacokinetic data, the recommended phase II dose of pilaralisib tablets was established as 400 mg once daily.A phase I trial of pilaralisib, an oral pan-class I phosphoinositide 3-kinase (PI3K) inhibitor, established the maximum tolerated dose (MTD) of the capsule formulation in patients with advanced solid tumors as 600 mg once daily. This phase I study investigated pilaralisib in tablet formulation.Patients with advanced solid tumors received pilaralisib tablets (100-600 mg once daily). Primary endpoints were MTD and safety; secondary and exploratory endpoints included pharmacokinetics (PK), pharmacodynamics, and efficacy.Twenty-two patients were enrolled. No dose-limiting toxicities (DLTs) were reported. The most common treatment-related adverse events were diarrhea (40.9%), fatigue (40.9%), decreased appetite (22.7%), and hyperglycemia (22.7%). Pilaralisib plasma exposure did not appear to increase dose-proportionally. Steady-state exposure was higher with pilaralisib tablet formulation at 400 mg than with pilaralisib capsule formulation at 400 or 600 mg (mean area under the curve [AUC0-24] 2,820,000 ng × h/mL vs. 2,653,000 and 1,930,000 ng × h/mL, respectively). Of 18 evaluable patients, 2 (11.1%) had a partial response (PR).Pilaralisib tablets were associated with a favorable safety profile and preliminary antitumor activity. MTD was not determined. The recommended phase II dose for pilaralisib tablets, based on PK data, was 400 mg once daily.

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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
XL147	XL147	9	1

Drug Name	Trade Name	Synonyms	Drug Classes	Drug Description
XL147		SAR245408\|Pilaralisib\|XL-147	PI3K Inhibitor (Pan) 40	Pilaralisib (XL147) is an inhibitor of all class I PI3Ks, thereby blocking activation of the PI3K signaling pathway and potentially resulting in antitumor activity including inhibition of cell proliferation, cell invasion, and tumor growth (PMID: 25637314, PMID: 29593099).

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