Reference Detail

Ref Type

Journal Article

PMID

(34422335)

Authors

Devarakonda S, Pellini B, Verghese L, Park H, Morgensztern D, Govindan R, Suresh R, Oppelt P, Baggstrom MQ, Wu N, Waqar SN

Title

A phase II study of everolimus in patients with advanced solid malignancies with TSC1, TSC2, NF1, NF2 or STK11 mutations.

Journal	Vol	Issue	Date	Pages	Journal Short Title
Journal of thoracic disease	13	7	2021 Jul	4054-4062	J Thorac Dis

URL

Abstract Text

Activation of the mTOR pathway has been implicated in the development of several malignancies and alterations in TSC1, TSC2, STK11 and NF1, can lead to the dysregulation of this pathway. Furthermore, mutations in TSC1 and NF2 are known to confer sensitivity to everolimus-an mTOR inhibitor. Based on these data, a single-arm, open label, single-institution phase II basket study was designed to assess the activity of everolimus in patients with solid malignancies whose tumors harbored mutations in TSC1, TSC2, NF1, NF2, or STK11.A total of 12 patients with histologically confirmed diagnosis of advanced solid tumors (metastatic, recurrent, or unresectable) with mutations in TSC1, TSC2, NF1, NF2 or STK11 genes, who had failed at least one line of standard of care systemic therapy, were enrolled to this open label, single-arm study. Presence of mutations in TSC1, TSC2, NF1, NF2 or STK11 genes was assessed using targeted-next generation sequencing (NGS). All eligible patients were treated with everolimus at an initial dose of 10 mg orally once daily in cycles of 28 days. The primary endpoint of this study was overall response rate (ORR).Of 12 patients enrolled, 8 were evaluable for response at the end of 2 cycles. One complete response (CR) was observed (12.5%) and one patient (12.5%) had stable disease (SD), while six (75%) patients showed disease progression. Everolimus was overall well tolerated with anemia, decreased neutrophil and lymphocyte counts, peripheral edema and hyperglycemia representing the most common adverse events. One patient discontinued treatment due to a treatment related grade 4 pericardial effusion. Both patients with CR or SD had a diagnosis of lung adenocarcinoma with NF1 or STK11 mutations, respectively.Although this study failed to meet its prespecified ORR threshold for success of 30% or higher, exploratory analyses suggest potential activity for everolimus in a subset of patients with lung adenocarcinomas with STK11 or NF1 mutations. Further studies are necessary to systematically explore the clinical activity of everolimus, potentially as a combination therapy, in these patients.

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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