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A Dose Escalation Study in Solid Tumors and a Dose Expansion Study of PRN1371 in Adult Patients With Metastatic Urothelial Carcinoma

A Phase I Open-Label, Multicenter, Dose-Escalation Study of PRN1371, a FGFR 1-4 Kinase Inhibitor, in Adult Patients With Advanced Solid Tumors, Followed by an Expansion Cohort in Patients With Metastatic Urothelial Carcinoma With FGFR 1, 2, 3, or 4 Genetic Alterations

Status
Terminated
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02608125
Enrollment
45
Registered
2015-11-18
Start date
2015-10-28
Completion date
2020-06-23
Last updated
2020-12-24

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

Conditions

Metastatic Urothelial Carcinoma & Renal Pelvis & Ureter, Solid Tumors

Keywords

FGFR

Brief summary

This is a multi-center, open label, non-randomized Phase 1 study, to be conducted in two parts, Part A, and Part B. Part A in solid tumors included the dose escalation phase for evaluating the safety and tolerability profile of PRN1371, a FGFR 1-4 Kinase inhibitor. Part B is the Cohort Expansion phase in patients with metastatic urothelial carcinoma to further evaluate safety and tolerability, preliminary activity, PK, and PD in patients with FGFR genetic alterations.

Detailed description

The protocol specifies rules for dose-limiting toxicity and a maximum tolerated dose (MTD). To gain further experience with the MTD, and/or at some lower optimal biologic dose level, an expansion cohort (Part B) enrolled patients with metastatic urothelial carcinoma with fibroblast growth factor receptor (FGFR) 1, 2, 3 or 4 genetic alterations.

Interventions

DRUGPRN1371

Sponsors

Principia Biopharma, a Sanofi Company
Lead SponsorINDUSTRY

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

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

Inclusion criteria

* Age ≥ 18 years * Histological or cytological documentation of an advanced solid tumor * Subject must have metastatic or recurrent disease and have failed first-line systemic treatment, and if indicated, failed approved second-line therapy, and for whom no standard therapy options are anticipated to result in a durable remission * Subject must have evaluable, progressive, and measurable disease per the Response Evaluation Criteria in Solid Tumors (RECIST) guidelines, Version 1.1 * Adequate bone marrow, liver, and renal function * Patient has an Eastern Cooperative Oncology Group (ECOG) performance status ≤ 1 For Part B (expansion) in subjects metastatic urothelial carcinoma: * The patient's tumor has been evaluated and prospectively identified as having FGFR 1, 2, 3, or 4 genetic alterations.

Exclusion criteria

* Patients who have received adequate prior treatment with a highly selective FGFR inhibitor * Patients with other major uncontrolled medical conditions, e.g., recent myocardial infarction, stroke, diabetes, active hepatitis * Patients who have received prior systemic anticancer therapy ≤ 3 weeks prior to study start (6 weeks for nitrosourea, antibodies, or mitomycin-C) * Patients diagnosed with another primary malignancy within 3 years prior to study start, with the exception of adequately treated basal cell carcinoma, squamous cell carcinoma, or other non-melanomatous skin cancer, or carcinoma in situ of the uterine cervix * Patients with glioblastoma multiforme * Patient has a primary neoplasm of the brain or known uncontrolled metastases to the central nervous system (CNS).

Design outcomes

Primary

MeasureTime frame
Incidence of treatment related Grade 3 and/or Grade 4 adverse events, defined as dose limiting toxicities, for the doses of PRN137128 days on average

Secondary

MeasureTime frame
Pharmacokinetic profile of PRN1371 including maximum serum concentrationDays 1 and 15
Pharmacokinetic profile of PRN1371 including time to maximum serum concentrationDays 1 and 15
Pharmacodynamic profile of PRN1371 including the effect of PRN1371 on phosphate levelsWhile being treated with PRN1371 (expected average of 16 weeks)
Pharmacokinetic profile of PRN1371 including area under the serum concentration-time curveDays 1 and 15
Pharmacodynamic profile of PRN1371 including the effect of PRN1371 on serum FGF23 (Part A only) levelsWhile being treated with PRN1371 (expected average of 16 weeks)
Objective response rate (ORR) as measured by RECIST v1.1 in patients treated with PRN1371Every 8 weeks while being treated with PRN1371 (expected average of 16 weeks)
Duration of response in patients treated with PRN1371Every 8 weeks while being treated with PRN1371 (expected average 16 weeks)
Pharmacodynamic profile of PRN1371 including the effect of PRN1371 on calcium levelsWhile being treated with PRN1371 (expected average of 16 weeks)

Countries

Spain, United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Mar 1, 2026