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Ref Type | Journal Article |
PMID | (30745300) |
Authors | Voss MH, Hierro C, Heist RS, Cleary JM, Meric-Bernstam F, Tabernero J, Janku F, Gandhi L, Iafrate AJ, Borger DR, Ishii N, Hu Y, Kirpicheva Y, Nicolas-Metral V, Pokorska-Bocci A, Vaslin Chessex A, Zanna C, Flaherty KT, Baselga J |
Title | A Phase I, Open-Label, Multicenter, Dose-escalation Study of the Oral Selective FGFR Inhibitor Debio 1347 in Patients with Advanced Solid Tumors Harboring FGFR Gene Alterations. |
Journal | Clinical cancer research : an official journal of the American Association for Cancer Research |
Vol | 25 |
Issue | 9 |
Date | 2019 May 01 |
URL | |
Abstract Text | To investigate tolerability, efficacy, and pharmacokinetics/pharmacodynamics of Debio 1347, a selective FGFR inhibitor.This was a first-in-human, multicenter, open-label study in patients with advanced solid tumors harboring FGFR1-3 gene alterations. Eligible patients received oral Debio 1347 at escalating doses once daily until disease progression or intolerable toxicity. Dose-limiting toxicities (DLT) were evaluated during the first 4 weeks on treatment, pharmacokinetics/pharmacodynamics postfirst dose and after 4 weeks.A total of 71 patients were screened and 58 treated with Debio 1347 at doses from 10 to 150 mg/day. Predominant tumor types were breast and biliary duct cancer, most common gene alterations were FGFR1 amplifications (40%) and mutations in FGFR2 (12%) and FGFR3 (17%); 12 patients (21%) showed FGFR fusions. Five patients at three dose levels had six DLTs (dry mouth/eyes, hyperamylasemia, hypercalcemia, hyperbilirubinemia, hyperphosphatemia, and stomatitis). The maximum tolerated dose was not reached, but dermatologic toxicity became sometimes dose limiting beyond the DLT period at ≥80 mg/day. Adverse events required dose modifications in 52% of patients, mostly due to dose-dependent, asymptomatic hyperphosphatemia (22%). RECIST responses were seen across tumor types and mechanisms of FGFR activation. Six patients, 3 with FGFR fusions, demonstrated partial responses, 10 additional patients' tumor size regressions of ≤30%. Plasma half-life was 11.5 hours. Serum phosphate increased with Debio 1347 plasma levels and confirmed target engagement at doses ≥60 mg/day.Preliminary efficacy was encouraging and tolerability acceptable up to 80 mg/day, which is now used in an extension part of the study. |
Molecular Profile | Treatment Approach |
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Gene Name | Source | Synonyms | Protein Domains | Gene Description | Gene Role |
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Therapy Name | Drugs | Efficacy Evidence | Clinical Trials |
---|---|---|---|
Debio 1347 | Debio 1347 | 55 | 2 |
Drug Name | Trade Name | Synonyms | Drug Classes | Drug Description |
---|---|---|---|---|
Debio 1347 | CH5183284|FF284|debiopharm 1347 | FGFR1 Inhibitor 27 FGFR2 Inhibitor 22 FGFR3 Inhibitor 19 | Debio 1347 inhibits FGFR-1, -2, and -3, resulting in decreased downstream signaling, and potentially leading to reduced tumor cell proliferation and angiogenesis, and increased cell death in FGFR-overexpressing tumor cells (PMID: 30745300). |
Gene | Variant | Impact | Protein Effect | Variant Description | Associated with drug Resistance |
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Molecular Profile | Indication/Tumor Type | Response Type | Therapy Name | Approval Status | Evidence Type | Efficacy Evidence | References |
---|---|---|---|---|---|---|---|
FGFR1 fusion | Advanced Solid Tumor | predicted - sensitive | Debio 1347 | Phase I | Actionable | In a Phase I trial, Debio 1347 treatment resulted in partial response in 10.5% (6/57) and stable disease in 28.1% (16/57) of patients with advanced solid tumors harboring genomic alterations of FGFR1/2/3, including amplifications, fusions, and mutations (PMID: 30745300; NCT01948297). | 30745300 |
FGFR2 fusion FGFR1 amp | colon cancer | predicted - sensitive | Debio 1347 | Case Reports/Case Series | Actionable | In a Phase I trial, Debio 1347 treatment resulted in a partial response with 49.5% reduction of tumor size and 66% decrease of DUSP6 score in a patient with colon cancer harboring FGFR1 amplification and FGFR2 fusion (PMID: 30745300; NCT01948297). | 30745300 |
FGFR2 fusion | Advanced Solid Tumor | predicted - sensitive | Debio 1347 | Phase I | Actionable | In a Phase I trial, Debio 1347 treatment resulted in partial response in 10.5% (6/57) and stable disease in 28.1% (16/57) of patients with advanced solid tumors harboring genomic alterations of FGFR1/2/3, including amplifications, fusions, and mutations (PMID: 30745300; NCT01948297). | 30745300 |
FGFR3 amp | Advanced Solid Tumor | predicted - sensitive | Debio 1347 | Phase I | Actionable | In a Phase I trial, Debio 1347 treatment resulted in partial response in 10.5% (6/57) and stable disease in 28.1% (16/57) of patients with advanced solid tumors harboring genomic alterations of FGFR1/2/3, including amplifications, fusions, and mutations (PMID: 30745300; NCT01948297). | 30745300 |
FGFR2 amp | uterine cancer | predicted - sensitive | Debio 1347 | Case Reports/Case Series | Actionable | In a Phase I trial, Debio 1347 treatment resulted in a stable disease with 3.9% change of tumor size and 60% decrease of DUSP6 score in a patient with uterine cancer harboring FGFR2 amplification (PMID: 30745300; NCT01948297). | 30745300 |
FGFR2 mutant | Advanced Solid Tumor | predicted - sensitive | Debio 1347 | Phase I | Actionable | In a Phase I trial, Debio 1347 treatment resulted in partial response in 10.5% (6/57) and stable disease in 28.1% (16/57) of patients with advanced solid tumors harboring genomic alterations of FGFR1/2/3, including amplifications, fusions, and mutations (PMID: 30745300; NCT01948297). | 30745300 |
FGFR3 mutant | Advanced Solid Tumor | predicted - sensitive | Debio 1347 | Phase I | Actionable | In a Phase I trial, Debio 1347 treatment resulted in partial response in 10.5% (6/57) and stable disease in 28.1% (16/57) of patients with advanced solid tumors harboring genomic alterations of FGFR1/2/3, including amplifications, fusions, and mutations (PMID: 30745300; NCT01948297). | 30745300 |
FGFR1 mutant | Advanced Solid Tumor | predicted - sensitive | Debio 1347 | Phase I | Actionable | In a Phase I trial, Debio 1347 treatment resulted in partial response in 10.5% (6/57) and stable disease in 28.1% (16/57) of patients with advanced solid tumors harboring genomic alterations of FGFR1/2/3, including amplifications, fusions, and mutations (PMID: 30745300; NCT01948297). | 30745300 |
FGFR2 amp | Advanced Solid Tumor | predicted - sensitive | Debio 1347 | Phase I | Actionable | In a Phase I trial, Debio 1347 treatment resulted in partial response in 10.5% (6/57) and stable disease in 28.1% (16/57) of patients with advanced solid tumors harboring genomic alterations of FGFR1/2/3, including amplifications, fusions, and mutations (PMID: 30745300; NCT01948297). | 30745300 |
FGFR1 amp | lung squamous cell carcinoma | predicted - sensitive | Debio 1347 | Case Reports/Case Series | Actionable | In a Phase I trial, Debio 1347 treatment resulted in a stable disease with 26.7% reduction of tumor size and 100% decrease of DUSP6 score in a patient with lung squamous cell carcinoma harboring FGFR1 amplification (PMID: 30745300; NCT01948297). | 30745300 |
FGFR3 fusion | Advanced Solid Tumor | predicted - sensitive | Debio 1347 | Phase I | Actionable | In a Phase I trial, Debio 1347 treatment resulted in partial response in 10.5% (6/57) and stable disease in 28.1% (16/57) of patients with advanced solid tumors harboring genomic alterations of FGFR1/2/3, including amplifications, fusions, and mutations (PMID: 30745300; NCT01948297). | 30745300 |
FGFR2 amp | breast cancer | sensitive | Debio 1347 | Case Reports/Case Series | Actionable | In a Phase I trial, Debio 1347 treatment resulted in a stable disease with 19.4% reduction of tumor size and 41% decrease of DUSP6 score in a patient with lung squamous cell carcinoma harboring FGFR2 amplification (PMID: 30745300; NCT01948297). | 30745300 |
FGFR2 amp FGFR2 mut | cervical adenocarcinoma | predicted - sensitive | Debio 1347 | Case Reports/Case Series | Actionable | In a Phase I trial, Debio 1347 treatment resulted in a partial response with 50% reduction of tumor size and 56% decrease of DUSP6 score in a patient with cervical adenocarcinoma harboring FGFR2 amplification and FGFR2 mutation (PMID: 30745300; NCT01948297). | 30745300 |
FGFR1 amp | Advanced Solid Tumor | predicted - sensitive | Debio 1347 | Phase I | Actionable | In a Phase I trial, Debio 1347 treatment resulted in partial response in 10.5% (6/57) and stable disease in 28.1% (16/57) of patients with advanced solid tumors harboring genomic alterations of FGFR1/2/3, including amplifications, fusions, and mutations (PMID: 30745300; NCT01948297). | 30745300 |