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Phase 1b Trial of BGJ398/BYL719 in Solid Tumors

A Phase Ib, Open-label Study of Oral BGJ398 in Combination With Oral BYL719 in Adult Patients With Select Advanced Solid Tumors

Status
Completed
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT01928459
Enrollment
62
Registered
2013-08-26
Start date
2013-10-31
Completion date
2016-08-31
Last updated
2020-12-09

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Advanced Solid Tumors, Metastatic Solid Tumors

Keywords

BGJ398, BYL719, advanced solid tumor, metastatic breast cancer, PK3CA, FGFR, fibroblast growth factor receptor

Brief summary

To study the safety and efficacy of the combination of BGJ398 with BYL719 in patients whose tumors express mutations to PIK3CA with or without alterations to FGFR 1-3.

Detailed description

This dose escalation/dose expansion study will evaluate the combination of orally administered BGJ398 in combination with orally administered BYL719. During the dose escalation part, the MTD of the combination will be determined in patients whose advanced or metastatic tumors express mutations to PIK3CA. Once the MTD has been determined, the expansion part will begin. Patients will be addd to one of three arms based on the disease type and genetic changes. Patients with metastatic colorectal cancer are not eligible for participation in the expansion part.

Interventions

DRUGBGJ398

BGJ398 will be administered orally once daily for the first 21 days of each 28-day cycle.

DRUGBYL719

BYL719 will be administered orally once daily on each day of the 28-day cycle.

Sponsors

Novartis Pharmaceuticals
Lead SponsorINDUSTRY

Study design

Allocation
NON_RANDOMIZED
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Histologically/cytologically confirmed advanced or metastatic solid tumors who have failed standard therapy or for whom no effective standard anti-cancer therapy exists * Documented PIK3CA mutations in all patients in dose escalation and expansion with or without documented genetic alterations in FGFR depending upon dose expansion cohort (either local or central determination) * Measurable disease defined by RECIST v1.1 * ECOG performance status of ≤2

Exclusion criteria

* Prior PI3Ki or selective FGFR inhibitor treatment (for patients enrolled to expansion part) * Colorectal cancer (for patients enrolled to expansion part) * Patients with diabetes mellitus requiring insulin treatment and/or with clinical signs or with fasting glucose ≥ 140 mg/dL / 7.8 mmol/L, history of clinically significant gestational diabetes mellitus or documented steroid-induced diabetes mellitus * Use of medications that increase serum levels of phosphorus and/or calcium * Inorganic phosphorus outside of normal limits * Total and ionized serum calcium outside of normal limits

Design outcomes

Primary

MeasureTime frameDescription
Incidence rate of dose limiting toxicities (DLTs) of the combination of BGJ398 with BYL719Approximately 8 monthsThe dose escalation part of the study will be guided by a well-established statistical method/model to estimate the maximum tolerated dose(s) and/or the recommended dose for expansion (RDE). Safety(incidence and nature of DLTs), pharmacokinetic and pharmacodynamic data will guide dose escalation decisioins.

Secondary

MeasureTime frameDescription
Safety and tolerability of BGJ398/BYL719 combination at the recommended dose for expansion (RDE)Every 28 days from baseline visit until end of study visitThis will be assessed by looking at the number of Adverse Events (AEs), serious AEs (SAEs) changes in hematology and chemistry values, vital signs, electrocardiograms (ECGs), dose interruptions and reductions
Overall response rateEvery two months from the date of baseline CT scanAssessment of preliminary antitumor activity of the combination of BGJ398 with BYL719; Overall response rate = complete response + partial response
Progression free survivalEvery two months from the date of baseline CT scanAssessment of preliminary antitumor activity of the combination of BGJ398 with BYL719
Time vs. concentration profile of BGJ398 and BYL719Every 28 days for up to 10 cyclesPlasma concentration versus time profiles. Plasma PK parameters will be used to characterize the PK profiles of the combination of BGJ398 with BYL719

Countries

Australia, Belgium, Canada, France, Germany, Italy, Netherlands, Singapore, South Korea, Spain, Switzerland, United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Mar 11, 2026