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NCT Number: NCT01263704

A Study of MabThera/Rituxan (Rituximab) in Combination With Fludarabine And Cyclophosphamide as Primary Therapy in Elderly Patients With Chronic Lymphocytic Leukemia

This single arm, open-label study will assess the safety and efficacy of low dose fludarabine and cyclophosphamide in combination with standard dose MabThera/Rituxan (rituximab) as primary therapy in elderly patients (>/= 65 years) with chronic lymphocytic leukemia. Patients will receive six 28-day cycles of treatment with Mabthera/Rituxan (375 mg/m2 intravenously [iv] Day 0 of cycle 1, 500 mg/m2 iv Day 1 of cycles 2-6), fludarabine (12.5 mg/m2/d iv Days 1-3, cycles 1-6) and cyclophosphamide (150 mg/m2/d iv Days 1-3, cycles 1-6). Anticipated time on study treatment is 6 months, with a 30-month follow-up period.

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Key information

Age range

65 year and older

Sex eligibility

All sexes

Study type

Interventional

Phase

Phase 2

Primary location

Haemek Medical Center; Hematology Department, Afula, Israel

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Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Adult patients, >/= 65 years of age
  • Previously untreated B-cell chronic lymphocytic leukemia (CLL)
  • Binet stage C or active Binet stage A and B disease

Exclusion criteria

  • Prior treatment for CLL
  • CLL with transformation (Richter's syndrome)
  • Suspected or known central nervous system (CNS) involvement of CLL
  • Impaired renal or hepatic function
  • Human Immunodeficiency Virus (HIV) positivity, active hepatitis B/C or Hepatitis B Virus (HBV) surface antigen positive, or any active or uncontrolled infections
  • Patients with anti-HBV core antibodies (past infection with HBV) but who are negative for Hepatitis B Virus Surface Antigen (HBVsAg) (either anti-HBS Ab positive or negative) and are positive for HBV- Deoxyribonucleic acid (DNA) by Polymerase chain reaction (PCR) analysis
  • Concomitant diseases requiring chronic steroid administration
  • Active second malignancy within the 2 years prior to study (except for non-melanoma skin cancer and in situ cervix or breast or prostate carcinoma)
  • Eastern Cooperative Oncology Group (ECOG) performance status >/= 3

Treatment and study plan

Cyclophosphamide

Drug

150 milligrams per square meter (mg/m^2) intravenously (IV) on Days 1-3 of each 28-day cycle for 6 cycles

Fludarabine

Drug

12.5 mg/m^2 IV on Days 1-3 of every 28-day cycle for 6 cycles

Rituximab

Drug

375 mg/m^2 IV Day 0 of Cycle 1, 500 mg/m^2 IV Day 1 of Cycles 2-6. Each cycle was 28 days.

Other names: MabThera/Rituxan

Primary outcomes

  1. Overall Response Rate

    Time frame: Up to 42 months

    Overall response rate was defined as the percentage of participants with a complete response (CR) or a partial response (PR) according to National Cancer Institute - Working Group [NCI-WG] guidelines. CR: no clonal B lymphocytes in peripheral blood, no significant lymphadenopathy, liver and spleen normal size, no disease symptoms, blood counts: absolute neutrophil count (ANC) >1,500/microliter (mcL), platelets > 100,000/mcL, hemoglobin > 11.0 grams/deciliter (g/dL), normocellular bone marrow. PR: >/= 50% decrease in clonal B lymphocyte count, >/= 50% reduction in lymphadenopathy, >/= 50% reduction of liver or spleen enlargement and ANC >1,500/mcL, platelets > 100,000/mcL, hemoglobin > 11.0 g/dL OR >/= 50% increase in ANC, platelets or hemoglobin.

Secondary outcomes

  1. Percentage of Participants With Adverse Events (AEs) and Serious Adverse Events (SAEs)

    Time frame: Up to 53 months

    An AE is any untoward medical occurrence in a participant administered a pharmaceutical product and which does not necessarily have to have a causal relationship with the treatment. Preexisting conditions which worsen during a study are also considered as adverse events. An SAE is any experience that suggests a significant hazard, contraindication, side effect, or precaution, and fulfills any of the following criteria: fatal (resulted in death), life-threatening, required in-patient hospitalization or prolongation of existing hospitalization, resulted in persistent or significant disability/incapacity, was a congenital anomaly/birth defect, was medically significant or required intervention to prevent any of the other outcomes listed here.

  2. Percentage of Participants With Neutropenic Fever, Infection, >/= Grade 3 Drug-Related Neutropenia, >/= Grade 3 Drug-Related Thrombocytopenia, Hospitalizations

    Time frame: Up to 53 months

  3. Hospitalization Days

    Time frame: Up to 53 months

  4. Progression-free Survival (PFS)

    Time frame: Up to 53 months

    PFS was defined as the interval from the first study drug treatment day to the first sign of disease progression according to NCI-WG guidelines. Progressive disease (PD): Any new lesion, any disease symptoms, >/=50% increase in lymphadenopathy, splenomegaly, hepatomegaly, >/= 50% increase in the number of circulating clonal B lymphocytes, decrease of hemoglobin levels by > 2.0 g/dL, >/= 50% decrease of platelet counts, increase of lymphocytes in bone marrow to more than 30% from normal.

  5. Quality of Life (QoL): Functional Assessment of Chronic Illness Therapy Fatigue (FACIT-F) Questionnaire

    Time frame: [Visit 1 (Screening, Week 0), at Visits 11 (Week 45) and 14 (Week 80) and at the end of the study (Month 42)]

    The FACIT-F questionnaire consists of 13 questions with a total score range of 0 to 52 with 0 indicating a better outcome and 52 indicating a worse outcome.

Sponsors and collaborators

Lead sponsor

Hoffmann-La Roche

Industry

Registry information

Official study title

A Phase II, Multicenter, Single Arm Study to Determine the Efficacy and Safety of Low Dose Fludarabine and Cyclophosphamide Combined With Standard Dose Rituximab as Primary Therapy in Elderly Untreated Patients (>/=65 Years Old) With Chronic Lymphocytic Leukemia

Important dates

Study start
2011
Primary completion
2017
Study completion
2017
First posted
Dec 21, 2010
Registry last updated
Apr 23, 2018

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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