An Open-label, Multicenter Study of LOXO-435 (LY3866288) in Advanced Solid Tumor Malignancies with FGFR3 Alterations

Cancer Categories

Karmanos Trial ID

NCT ID

Age Group

Scope

Phase

Principal Investigator

Primary Objectives:

To determine the recommended dose of LOXO-435
in patients with advanced solid tumors harboring
alterations in FGFR3 or its ligands

Secondary Objectives

To determine the safety and tolerability of
LOXO-435 in patients with advanced solid tumors
harboring alterations in FGFR3 or its ligands
To characterize the PK properties of LOXO-435 in
patients with advanced solid tumors harboring
alterations in FGFR3 or its ligands
To characterize the preliminary antitumor activity of
LOXO-435 in patients with advanced solid tumors
harboring alterations in FGFR3 or its ligands

Eligibility

Inclusion Criteria:

Have solid tumor cancer with an FGFR3 pathway alteration on molecular testing in tumor or blood sample that is deemed as actionable.

Cohort A1 (Dose Escalation): Presence of an alteration in FGFR3 or its ligands.
Cohort A2 (Dose Optimization): Histological diagnosis of urothelial cancer (UC) that is locally advanced or metastatic with a qualifying FGFR3 alteration.
Cohorts B1, B2 and B3 (Dose Expansion): Histological diagnosis of urothelial cancer that is locally advanced or metastatic with a prespecified activating FGFR3 alteration.
Cohort C (Dose Expansion): Must have histological diagnosis of a non-urothelial solid tumor malignancy that is locally advanced or metastatic with a prespecified activating FGFR3 alteration.

Cohort A1: Measurable or non-measurable disease as defined by Response Evaluation Criteria in Solid Tumors v 1.1 (RECIST v1.1)
Cohorts A2, B1, B2, B3, and C1: Measurable disease required as defined by RECIST v1.1

Have adequate archival tumor tissue sample available or undergo a screening biopsy if allowed per country-specific regulations.
Have an Eastern Cooperative Oncology Group (ECOG) performance status of 0 or 1.
Prior Systemic Therapy Criteria:

Cohort A1/C1: Participant has received all standard therapies for which the participant was deemed to be an appropriate candidate by the treating Investigator; OR the participant is refusing the remaining most appropriate standard of care treatment; OR there is no standard therapy available for the disease. There is no restriction on number of prior therapies.
Cohort A2/B1/B2/B3: Participants must have received at least one prior regimen in the advanced or metastatic setting. There is no restriction on number of prior therapies.

Cohort A1/A2: Prior FGFR inhibitor treatment is permitted, but not required.
Cohort B1: Participants must have been previously treated with a FGFR inhibitor.
Cohort B2, B3, C1: Participants must be FGFR inhibitor naïve.

Exclusion Criteria:

Participants with primary central nervous system (CNS) malignancy.
Known or suspected history of uncontrolled CNS metastases.
Current evidence of corneal keratopathy or retinal disorder.
Have a history and/or current evidence of extensive tissue calcification.
Any serious unresolved toxicities from prior therapy.
Significant cardiovascular disease.
Prolongation of the QT interval corrected for heart rate using Fridericia's formula (QTcF).
Active uncontrolled systemic infection or other clinically significant medical conditions.

Locations

4100 John R
Detroit, MI 48201
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Phone: 800-527-6266

31995 Northwestern Hwy
Farmington Hills, MI 48334
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Phone: 800-527-6266

Applicable Disease Site

Therapies, Drugs, Devices