A Study of Idelalisib and Rituximab in Elderly Patients With Untreated CLL or SLL

This study is currently recruiting participants. (see Contacts and Locations)
Verified August 2014 by Gilead Sciences
Information provided by (Responsible Party):
Gilead Sciences
ClinicalTrials.gov Identifier:
First received: September 15, 2010
Last updated: August 22, 2014
Last verified: August 2014

This study is to evaluate the safety and clinical activity of idelalisib alone and in combination with rituximab in patients with CLL or SLL.

This Phase 2 study will be the first time that idelalisib is administered to previously untreated patients with hematologic malignancies. Idelalisib has demonstrated clinical activity as a single agent in relapsed or refractory CLL and SLL with acceptable toxicity, which supports its evaluation in previously untreated patients. The study population is limited to patients over 65 years of age because younger patients are generally appropriate for standard immunochemotherapy regimens that are highly active. Since the mechanism of action of idelalisib is distinct from rituximab, it is hypothesized that the combination will be more active than either agent alone. This study will establish initial safety and clinical activity of idelalisib in combination with rituximab in patients with CLL or SLL. Cohort 2 of this study will establish safety and clinical activity of idelalisib alone in subjects with untreated CLL or SLL.

Condition Intervention Phase
Chronic Lymphocytic Leukemia (CLL)
Small Lymphocytic Lymphoma (SLL)
Drug: Idelalisib
Drug: Rituximab
Phase 2

Study Type: Interventional
Study Design: Endpoint Classification: Safety/Efficacy Study
Intervention Model: Single Group Assignment
Masking: Open Label
Primary Purpose: Treatment
Official Title: A Phase 2 Single Arm Study to Investigate the Safety and Clinical Activity of Idelalisib Alone and in Combination With Rituximab in Elderly Subjects With Previously Untreated Chronic Lymphocytic Leukemia or Small Lymphocytic Lymphoma

Resource links provided by NLM:

Further study details as provided by Gilead Sciences:

Primary Outcome Measures:
  • Overall response rate [ Time Frame: Every 2-3 months ] [ Designated as safety issue: No ]
    Clinical activity will be evaluated using standard response definitions

Secondary Outcome Measures:
  • Duration of response and progression-free survival [ Time Frame: Every 2-3 months ] [ Designated as safety issue: No ]
    Clinical activity will be evaluated using standard response definitions

  • Plasma exposures of idelalisib [ Time Frame: 7 months ] [ Designated as safety issue: No ]
    Periodic serial plasma samples will be collected for analysis of idelalisib concentration

  • Pharmacodynamic effects of idelalisib treatment [ Time Frame: 7 months ] [ Designated as safety issue: No ]
    Periodic serial plasma samples will be collected for analysis of exploratory pharmacodynamic measures

  • Safety of idelalisib [ Time Frame: 12 months ] [ Designated as safety issue: Yes ]
    Safety will be evaluated by assessing extent of exposure to idelalisib, adverse events, clinical laboratory data, and vital signs

Estimated Enrollment: 104
Study Start Date: October 2010
Estimated Study Completion Date: May 2016
Estimated Primary Completion Date: May 2016 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: Idelalisib plus rituximab Drug: Idelalisib
Idelalisib 150 mg administered orally twice daily for 12 months or until disease progression or unacceptable toxicity
Other Names:
  • GS-1101
  • CAL-101
  • Zydelig®
Drug: Rituximab
Rituximab 375 mg/m2 administered intravenously once weekly x 8 weeks
Other Name: Rituxan


Ages Eligible for Study:   65 Years and older
Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • Histologically or cytologically confirmed CLL or SLL.
  • Age ≥ 65
  • Presence of measurable lymphadenopathy (defined as the presence of ≥1 nodal lesion that measures ≥ 1.5 cm in the longest diameter [LD] and ≥ 1.0 cm in the longest perpendicular diameter [LPD] as assessed by physical exam, computed tomography [CT] or magnetic resonance imaging [MRI]).
  • CLL - Binet Stage C or Rai Stage III or IV or has active disease defined by meeting at least one of the following criteria:

    • Evidence of progressive marrow failure as manifested by the development of, or worsening of, anemia and/or thrombocytopenia
    • Massive (ie, > 6 cm below the left costal margin) or progressive or symptomatic splenomegaly
    • Massive nodes (ie, > 10 cm in longest diameter) or progressive or symptomatic lymphadenopathy
    • Progressive lymphocytosis with an increase of more than 50% over a 2-month period or lymphocyte doubling time of less than 6 months
    • Autoimmune anemia and/or thrombocytopenia poorly responsive to corticosteroids or other standard therapy

      • At least one of the following disease-related symptoms:
      • Unintentional weight loss ≥ 10% within the previous 6 months
      • Significant fatigue
      • Fevers > 100.4 F for ≥ 2 weeks without other evidence of infection
      • Night sweats for ≥ 1 month without evidence of infection
  • SLL - has active disease as defined above for CLL, except the lymphocytosis criterion does not apply
  • World Health Organization (WHO) Performance Status of ≤ 2
  • For men of child-bearing potential, willing to use adequate methods of contraception for the entire duration of the study
  • Able to provide written informed consent

Exclusion Criteria:

  • Prior therapy for CLL or SLL, except corticosteroids for symptom relief
  • Treatment with a short course of corticosteroids for symptom relief within 1-week prior to Visit 1
  • Known active central nervous system involvement of the malignancy
  • Ongoing active, serious infection requiring systemic therapy. Patients may be receiving prophylactic antibiotics and antiviral therapy at the discretion of the treating physician.
  • Serum creatinine ≥ 2.0 mg/dL
  • Serum bilirubin ≥ 2 mg/dL (unless due to Gilbert's syndrome) or serum transaminases (ie, aspartate aminotransferase [AST], alanine aminotransferase [ALT]) ≥ 2 x upper limit of normal
  • Positive test for human immunodeficiency virus (HIV) antibodies
  • Active hepatitis B or C (confirmed by ribonucleic acid [RNA] test). Patients with serologic evidence of prior exposure are eligible.
  • History of a non-CLL malignancy except for the following: adequately treated local basal cell or squamous cell carcinoma of the skin, cervical carcinoma in situ, superficial bladder cancer, asymptomatic prostate cancer without known metastatic disease and with no requirement for therapy or requiring only hormonal therapy and with normal prostate-specific antigen for ≥1 year prior to study entry, other adequately treated Stage 1 or 2 cancer currently in complete remission, or any other cancer that has been in complete remission for ≥5 years.
  Contacts and Locations
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, see Learn About Clinical Studies.

Please refer to this study by its ClinicalTrials.gov identifier: NCT01203930

United States, California
University of California, San Diego, Moores Cancer Center Recruiting
La Jolla, California, United States, 92093-0820
Contact: Jenny Perales       j7perez@ucsd.edu   
Contact: Jesika Reiner       jreiner@ucsd.edu   
Principal Investigator: Thomas Kipps, MA         
Stanford University School of Medicine Recruiting
Stanford, California, United States, 94304
Contact: Nini Estevez       nestevez@stanford.edu   
Contact: Tessa St. Rose       tessast.rose1@stanford.edu   
Principal Investigator: Steven Coutre, MD         
United States, New York
Memorial Sloan Kettering Cancer Center Recruiting
New York, New York, United States, 10065
Contact: Erika Chung    646-497-9127    chunge@mskcc.org   
Principal Investigator: Andrew Zelenetz, MD         
Columbia University - Herbert Irving Pavilion Recruiting
New York, New York, United States, 10032
Contact: Hanna Weissbrot    212-304-5558    hw2432@cumc.columbia.edu   
Principal Investigator: Nicole Lamanna, MD         
United States, Tennessee
Sarah Cannon Research Institute Recruiting
Nashville, Tennessee, United States, 37203
Contact: Ask SARAH    877-MY-1-SCRI (691-7274)    asksarah@scresearch.net   
Principal Investigator: Ian Flinn, MD         
United States, Texas
The Universtity of Texas MD Anderson Cancer Center Recruiting
Houston, Texas, United States, 77030
Contact: Ana Ayala    713-792-4254    abayala@mdanderson.org   
Principal Investigator: Susan O'Brien, MD         
Sponsors and Collaborators
Gilead Sciences
Study Director: Ronald Dubowy, MD Gilead Sciences
  More Information

No publications provided

Responsible Party: Gilead Sciences
ClinicalTrials.gov Identifier: NCT01203930     History of Changes
Other Study ID Numbers: 101-08
Study First Received: September 15, 2010
Last Updated: August 22, 2014
Health Authority: United States: Food and Drug Administration

Keywords provided by Gilead Sciences:
Phosphatidylinositol 3-kinase (PI3K)

Additional relevant MeSH terms:
Leukemia, Lymphocytic, Chronic, B-Cell
Leukemia, Lymphoid
Neoplasms by Histologic Type
Leukemia, B-Cell
Lymphoproliferative Disorders
Lymphatic Diseases
Immunoproliferative Disorders
Immune System Diseases
Antineoplastic Agents
Therapeutic Uses
Pharmacologic Actions
Immunologic Factors
Physiological Effects of Drugs
Antirheumatic Agents

ClinicalTrials.gov processed this record on August 26, 2014