We're building a better ClinicalTrials.gov. Check it out and tell us what you think!
Try the New Site
We're building a modernized ClinicalTrials.gov! Visit Beta.ClinicalTrials.gov to try the new functionality.
ClinicalTrials.gov Menu

Extension Study of UC-961 (Cirmtuzumab) for Patients With Chronic Lymphocytic Leukemia Treated Previously With UC-961

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details.
ClinicalTrials.gov Identifier: NCT02860676
Recruitment Status : Completed
First Posted : August 9, 2016
Last Update Posted : March 20, 2019
Information provided by (Responsible Party):
Catriona Jamieson, University of California, San Diego

Brief Summary:

The purpose of the study is to investigate the safety of the investigational drug called cirmtuzumab when given for a duration of 6 to 12 months. Cirmtuzumab is a type of drug called a monoclonal antibody. This drug is designed to attach to a protein called ROR1 that is on the surface of chronic lymphocytic leukemia (CLL) cells. This blocks growth and survival of the CLL cells. ROR1 is rarely expressed on healthy cells so this drug should target the cancer cells. Cirmtuzumab is considered experimental because its use is not approved by United States (US) Food and Drug Administration (FDA).

Although there is evidence from tests on laboratory animals that cirmtuzumab can decrease the number of CLL cells, the investigators do not know if this will work in humans. Therefore, the goal of this study is to see if cirmtuzumab is safe and tolerable in study participants when given for a duration of 6 to 12 months.

Condition or disease Intervention/treatment Phase
Chronic Lymphocytic Leukemia Drug: cirmtuzumab Phase 1

Detailed Description:

This is an open-label extension study to determine the safety and tolerability of cirmtuzumab given to participants who enrolled and completed the initial phase 1 trial in CLL without a dose-limiting toxicity.

UC-961 is administered by intravenous infusion every 14 days for 4 doses, then every 28 days for 4 doses, after which responses will be assessed. Patients with an objective response (meeting working group criteria for partial response or complete response) will continue at the same dose and schema. Patients with stable disease or progressive disease are eligible to increase the dose of UC-961 for another 6-month course.

Duration of UC-961 administration is until disease progression, treatment intolerance, or lack of clinical benefit.

Layout table for study information
Study Type : Interventional  (Clinical Trial)
Actual Enrollment : 3 participants
Allocation: N/A
Intervention Model: Single Group Assignment
Masking: None (Open Label)
Primary Purpose: Treatment
Official Title: A Phase 1 Extension Study to Determine the Safety of UC-961 (Cirmtuzumab) at the Recommended Phase 2 Dose for Retreatment of Patients With Chronic Lymphocytic Leukemia Treated Previously With UC-961
Actual Study Start Date : November 3, 2016
Actual Primary Completion Date : February 27, 2018
Actual Study Completion Date : May 22, 2018

Arm Intervention/treatment
Experimental: Cirmtuzumab Drug: cirmtuzumab
cirmtuzumab, dose based on ongoing phase 1 trial, q14days x 4 doses, then q28 days x 4 doses, until disease progression.
Other Name: UC-961

Primary Outcome Measures :
  1. Number of participants with treatment-related adverse events as assessed by CTCAE v4.0 [ Time Frame: 1 year ]
    Adverse events assessed by CTCAE v4.0 during treatment and 3 month follow-up

Secondary Outcome Measures :
  1. Overall response rate [ Time Frame: 1 year ]
  2. Progression free survival [ Time Frame: 1 year ]
  3. Stable Disease Rate (SD) [ Time Frame: 1 year ]
  4. Partial Response Rate (PR) [ Time Frame: 1 year ]
  5. Minimal Residual Disease Rate (MRD) [ Time Frame: 1 year ]

Information from the National Library of Medicine

Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, Learn About Clinical Studies.

Layout table for eligibility information
Ages Eligible for Study:   18 Years and older   (Adult, Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • Clinical and phenotypic verification of B cell CLL and measurable disease. Immunophenotyping of the leukemic cells (blood or marrow) must demonstrate a monoclonal (or light chain positive) B cell population with immunophenotype consistent with CLL (e.g., co-expressing CD19 and CD5).
  • Recovered from toxic effects attributed to UC-961 to grade 1 levels, or baseline.
  • Must have measurable disease, including one of the following:

    • absolute lymphocyte count greater than 5000/uL
    • lymphadenopathy greater than 1.5 cm in longest dimension
    • splenomegaly
    • bone marrow biopsy with residual CLL cells, or resultant bone marrow dysfunction
  • Women of childbearing potential must agree not to become pregnant for the duration of the study. Both men and women must agree to use a barrier method of contraception for the duration of the study and until 10 weeks after the final dose of UC-961.
  • Subjects must have an ECOG performance status of 0-2.
  • Adequate hematologic function
  • Adequate renal function
  • Adequate hepatic function
  • Adequate coagulation tests

Exclusion Criteria:

  • Pregnant or breast-feeding women
  • May have had intervening therapy since completion of initial UC-961 dosing, but excluding the following:

    • Within 7 days of UC-961 restart, or 5 half-lives (if known), whichever is shorter: small molecule tyrosine kinase inhibitor (eg: ibrutinib, idelalisib, AVL-292, IPI-145);
    • Within 28 days of UC-961 restart: chemotherapy (e.g., purine analogues, alkylating agents), corticosteroids, radiation therapy, or participation in any other investigational drug treatment (besides UC-961);
    • Within 56 days of UC-961 restart: previous UC-961 dosing;
    • Within 56 days of UC-961 restart: monoclonal antibody therapy directed against CLL (e.g., rituximab, ofatumumab, obinutuzumab, alemtuzumab).
  • Current infection requiring parenteral antibiotics.
  • Active infection with HIV, HBV, or HCV.
  • Concurrent malignancy or prior malignancy within the previous 3 years (other than completely resected carcinoma in situ, prostate cancer, or localized non-melanoma skin cancer).
  • Known central nervous system (CNS) involvement by malignancy.
  • Untreated autoimmunity such as autoimmune hemolytic anemia, or immune thrombocytopenia.
  • Uncompensated hypothyroidism (defined as TSH greater than 2x upper limit of normal not treated with replacement hormone).
  • Presence of more than 55% pro-lymphocytes in peripheral blood. Patients with Richter's transformation are not excluded.
  • Insufficient recovery from surgical-related trauma or wound healing.
  • Impaired cardiac function including any of the following:

    • Myocardial infarction within 6 months of starting study drug;
    • A past medical history of clinically significant ECG abnormalities;
    • Other clinically significant heart disease (e.g. uncontrolled congestive heart failure, uncontrolled hypertension, history of labile hypertension, or history of poor compliance with an antihypertensive regimen).

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT02860676

Layout table for location information
United States, California
UC San Diego Moores Cancer Center
La Jolla, California, United States, 92093
Sponsors and Collaborators
University of California, San Diego
Layout table for investigator information
Principal Investigator: Catriona Jamieson, MD, PhD University of California, San Diego
Principal Investigator: Michael Y Choi, MD University of California, San Diego
Layout table for additonal information
Responsible Party: Catriona Jamieson, Professor of Medicine, University of California, San Diego
ClinicalTrials.gov Identifier: NCT02860676    
Other Study ID Numbers: 150851
First Posted: August 9, 2016    Key Record Dates
Last Update Posted: March 20, 2019
Last Verified: March 2019
Keywords provided by Catriona Jamieson, University of California, San Diego:
Additional relevant MeSH terms:
Layout table for MeSH terms
Leukemia, Lymphoid
Leukemia, Lymphocytic, Chronic, B-Cell
Neoplasms by Histologic Type
Lymphoproliferative Disorders
Lymphatic Diseases
Immunoproliferative Disorders
Immune System Diseases
Leukemia, B-Cell
Chronic Disease
Disease Attributes
Pathologic Processes