Study of Recombinant Interleukin 21 in Combination With Sorafenib for Metastatic Renal Cell Carcinoma

ZymoGenetics52 enrolled

Overview

The purpose of the study is to evaluate whether recombinant IL-21 used in combination with sorafenib is safe for patients with metastatic renal cell carcinoma (RCC).

This is a Phase 1/2 open-label dose-escalation study of rIL-21 given in combination with sorafenib to patients with metastatic RCC. The Phase 1 part of this study will estimate the maximum tolerated dose of rIL-21 given for 1 treatment course (consisting of two 5-day cycles of rIL-21) in combination with a standard dose of sorafenib administered during a 6-week treatment course. Increasing doses of rIL-21 will be studied sequentially in different groups of patients. The Phase 2 part of the study will further evaluate the safety and preliminary antitumor activity of rIL-21 at the dose recommended from Phase 1 in combination with sorafenib. Patients will be evaluated for safety over the course of the study. Disease evaluation (tumor restaging) will be performed during the last week of each 6-week treatment course. Patients with stable disease or better at this evaluation may go on to receive additional treatment courses. Patients may be in the study for 2 to 7 months.

Study Type

INTERVENTIONAL

Allocation

NON_RANDOMIZED

Purpose

TREATMENT

Masking

NONE

Enrollment

Conditions

Carcinoma, Renal Cell

Interventions

rIL-21 onlyDRUG

Part 1: rIL-21, IV, Day 1-5 and 15-19 of each 6-week treatment course

rIL-21 + sorafenibDRUG

Part 2: rIL-21 IV, Day 1-5 and 15-19 of each 6-week treatment course + sorafenib (up to 400 mg taken orally twice daily)

Eligibility

Sex: ALLMin age: 18 Years

Medical Language ↔ Plain English

Inclusion Criteria: * Diagnosis of RCC of predominantly clear cell histology * Either no prior treatment or a maximum of 2 prior treatment regimens for metastatic RCC that included no more than 1 treatment regimen targeting the vascular endothelial growth factor (VEGF) pathway (Phase 1 only) * At least 1 but no more than 2 prior systemic therapies for metastatic RCC that included no more than 1 therapy targeting the VEGF pathway (Phase 2 only) * Disease measurable per the Response Evaluation Criteria in Solid Tumors (RECIST) (Phase 2 only) Exclusion Criteria: * Presence of acute infection or other significant systemic illness * Central nervous system involvement by malignancy * History of other cancer within 5 years * Previously received rIL-21 or sorafenib

Locations (3)

University of Alabama

Birmingham, Alabama, United States

Premiere Oncology of Arizona

Scottsdale, Arizona, United States

Dartmouth-Hitchcock Medical Center

Lebanon, New Hampshire, United States

Outcomes

Primary Outcomes

Safety profile, including incidence and severity of adverse events

Time frame: During treatment and 28 days after last dose of rIL-21

Secondary Outcomes

Objective response rate at recommended dose of rIL-21

Time frame: Every 6 weeks during treatment and then every 3 months after last dose of rIL-21 until 3 months after median survival is reached

Progression-free survival at recommended dose of rIL-21

Time frame: Every 6 weeks during treatment and then every 3 months after last dose of rIL-21 until 3 months after median survival is reached

Pharmacokinetic profiles of rIL-21 and sorafenib

Time frame: rIL-21: During treatment and 15 days after dosing; sorafenib: During treatment and 22 days after dosing

Data from ClinicalTrials.gov

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