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Phase I Trial of Anti-CD74 (hLL1) Antibody Therapy in B Cell Malignancies

This study has been completed.
Immunomedics, Inc.
Information provided by (Responsible Party):
Weill Medical College of Cornell University Identifier:
First received: July 19, 2007
Last updated: February 7, 2017
Last verified: February 2017

Previous experience with antibody therapy in both NHL and CLL warrants further exploration of new antibody treatments for these diseases.

Immunomedics has developed hLL1 (previously designated EPB-1), which is a CDR-grafted, fully humanized monoclonal antibody specifically targeting CD74.38 The human IgG1 backbone for hLL1 is the same as hLL2 (epratuzumab), a monoclonal antibody whose safety has been demonstrated in clinical trials of patients with B-cell malignancies and autoimmune disorders.

This is a Phase I, open-label, study conducted in patients with recurrent non-Hodgkin's lymphoma (NHL) or chronic lymphocytic leukemia (CLL) who have progressed after at least one prior standard treatment. All patients will receive hLL1 administered intravenously once daily Monday through Friday of each of 2 consecutive weeks (10 total doses.) Patients will be assigned to a cohort for hLL1 treatment dose assignment (escalating doses of hLL1 per statistical plan) in order to determine the maximum tolerated dose (MTD) for this administration schedule.

Condition Intervention Phase
Non-Hodgkin's Lymphoma
Chronic Lymphocytic Leukemia
Drug: hLL1
Phase 1

Study Type: Interventional
Study Design: Intervention Model: Single Group Assignment
Masking: No masking
Primary Purpose: Treatment
Official Title: Phase I Trial of Anti-CD74 (hLL1) Antibody Therapy in B Cell Malignancies

Resource links provided by NLM:

Further study details as provided by Weill Medical College of Cornell University:

Primary Outcome Measures:
  • To determine the toxicity profile and maximum tolerated dose (MTD) of hLL1 when administered to patients with recurrent non-Hodgkin's lymphoma and chronic lymphocytic leukemia [ Time Frame: duration of study ]

Enrollment: 23
Study Start Date: June 2007
Study Completion Date: October 7, 2015
Primary Completion Date: April 1, 2011 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: Study Treatment
This study is a single arm study
Drug: hLL1
hLL1 administered intravenously once daily Monday through Friday for 2 consecutive weeks (10 total doses) at one of 4 planned dose levels: 1.5, 4, 6 or 8 mg/kg.


Ages Eligible for Study:   18 Years and older   (Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • Histologically confirmed diagnosis of recurrent B cell non-Hodgkin's lymphoma or diagnosis of recurrent chronic lymphocytic leukemia
  • Patient has received at least one prior treatment with standard chemotherapy and at least one prior treatment with rituximab (negative HAHA test required if received prior humanized antibody treatment)
  • Patient has not received anti-cancer therapy within 28 days of treatment unless disease progression has been demonstrated and toxicities from prior therapy have resolved
  • Available tumor tissue (lymph node/mass, blood or bone marrow) for correlative analyses (paraffin or frozen, recent or archived)
  • Measurable disease as defined by a tumor mass > 1.5 cm in one dimension or WBC > 5,000 (CLL patients)
  • Age > 18 years
  • Patient has KPS > 50%
  • Absolute granulocyte count > 1000 cells/mm3
  • Platelet count > 50,000 cells/mm3
  • Creatinine < 2.0 x ULN
  • Total bilirubin < 2.0 x ULN
  • Patient agrees to use birth control if of reproductive potential
  • Patient has signed IRB-approved informed consent

Exclusion Criteria:

  • Known central nervous system (CNS) involvement by lymphoma
  • Known HIV disease
  • Patient is pregnant or nursing
  • Patient is receiving other investigational drugs
  • Known serum human anti-human antibodies (HAHA)
  • Estimated life expectancy of < 3 months
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Please refer to this study by its identifier: NCT00504972

United States, New York
Weill Cornell Medical College
New York, New York, United States, 10021
Sponsors and Collaborators
Weill Medical College of Cornell University
Immunomedics, Inc.
Principal Investigator: John P Leonard, MD Weill Medical College of Cornell University
  More Information

Additional Information:
Responsible Party: Weill Medical College of Cornell University Identifier: NCT00504972     History of Changes
Other Study ID Numbers: 0608008669
Study First Received: July 19, 2007
Last Updated: February 7, 2017
Individual Participant Data  
Plan to Share IPD: Undecided

Studies a U.S. FDA-regulated Drug Product: Yes
Studies a U.S. FDA-regulated Device Product: No

Additional relevant MeSH terms:
Lymphoma, Non-Hodgkin
Leukemia, Lymphoid
Leukemia, Lymphocytic, Chronic, B-Cell
Neoplasms by Histologic Type
Lymphoproliferative Disorders
Lymphatic Diseases
Immunoproliferative Disorders
Immune System Diseases
Leukemia, B-Cell
Immunologic Factors
Physiological Effects of Drugs processed this record on May 22, 2017