Ofatumumab Added to Fludarabine-Cyclophosphamide vs. Fludarabine-Cyclophosphamide Combination in Relapsed subjects with Chronic Lymphocytic Leukemia
Trial overview
Progression-free survival (PFS), as assessed by the Independent Review Committee (IRC)
Timeframe: From randomization up to 5 years after last dose of study drug
Number of participants who were negative for Minimal Residual Disease (MRD) assessed by IRC
Timeframe: From randomization up to 5 years after last dose of study drug
Maximum concentration (Cmax) and observed drug concentration prior to the next dose (Ctrough) of Ofatumumab
Timeframe: Cycle 1 Week 1, Cycle 1 Week 2, Cycles 2,3,4,5
Change from baseline in the European organization for the research and treatment of cancer quality of life questionnaire core 30 (EORTC QLQ-C30) score
Timeframe: Screening, Cycle 3 Day 1, and 1 M and every 3 month post last dose up to 24 month.
Percentage of participants with the best OR, as assessed by the Investigator
Timeframe: From randomization up to 5 years after last dose of study drug
Mean area under the time-concentration curve (AUC) curve over the dosing interval (AUC[0-tau]) of ofatumumab
Timeframe: Cycle 1 Week 1, Cycle 1 Week 2, Cycles 2,3,4,5,6
Mean level of Immunoglobulin (Ig) Antibodies IgA, IgG, and IgM
Timeframe: Baseline, 1M and 6M follow up
Number of participants who were negative for MRD assessed by investigator
Timeframe: From randomization up to 5 years after last dose of study drug
Number of participants with any Adverse Event (AE) or Serious Adverse Event (SAE)
Timeframe: From first dose of study medication to 60 Days after the last dose of study medication (for an AE), or up to 5 years after the last dose of study drug or until the time of the next anti-CLL therapy (for SAE)
Time of occurrence of Cmax (Tmax) of ofatumumab
Timeframe: Cycle 1 Week 1, Cycle 1 Week 2, Cycle 4
Number of Participants with no B-Symptoms or at least one B-symptoms over the time
Timeframe: Screening, Cycle1 Day 1, Cycle 2 Day1, Cycle 3 Day1, Cycle 4 Day1, Cycle 5 Day1, Cycle 6 Day 1 and During at 1M after study drug therapy, then every 3 M up to 5 year (up to 60 months)
Change from Baseline in Cell Counts, CD5- CD19+
Timeframe: Screening, Cycle 1 Day1, Cycle 1 Day 15, Cycle 2 Day 1, Cycle 2 Day 15, Cycle 3 Day 1, Cycle 4 Day 1, Cycle 5 Day 1, Cycle 6 Day 1 and after last dose at 1 M and then every three month up to 45 M during Follow-up Period
Overall survival (OS)
Timeframe: From randomization up to 5 years after last dose of study drug
Time to response, as assessed by the IRC
Timeframe: From randomization up to 5 years after last dose of study drug
Percentage of participants with the best Overall Response (OR), as assessed by the IRC
Timeframe: From randomization up to 5 years after last dose of study drug
Duration of Response (DOR), as assessed by the IRC
Timeframe: From time of initial response to disease progression or death, whichever came first (up to 5 years after the last dose of study drug)
Changes in Patient Reported Outcome (PRO) measures and scores for European organization for research and treatment of cancer quality of life questionnaire, chronic lymphocytic leukaemia 16 item module (EORTC QLQ-CLL 16)
Timeframe: Screening, Cycle 3 Day 1, and 1 M and every 3 month post last dose up to 24 month.
Change from baseline in Cluster of Differentiation (CD) Cell Counts, CD5+ and CD19+
Timeframe: Screening, Cycle 1 Day1, Cycle 1 Day 15, Cycle 2 Day 1, Cycle 2 Day 15, Cycle 3 Day 1, Cycle 4 Day 1, Cycle 5 Day 1, Cycle 6 Day 1 and after last dose at 1 M and then every three months up to 45 M during Follow-up Period
Prognostic and biological markers correlating with clinical response
Timeframe: From randomization up to 5 years after last dose of study drug
Time to progression, as assessed by the IRC
Timeframe: From randomization up to 5 years after the last dose of study drug
Number of participants with improvement in Eastern Cooperative Oncology Group (ECOG) performance status
Timeframe: Cycle 2 Day1, Cycle 3 Day1, Cycle 4 Day1, Cycle 5 Day1, Cycle 6 Day1, follow up (FU) at 1Month (M) after study drug therapy, then every 3 month up to 5 year (up to 60 months)
Number of participants with drug related AEs and SAEs of maximum severity of Grade 3 or Higher
Timeframe: From first dose of study medication to 60 days after the last dose of study medication (for an AE), or up to 5 years after the last dose of study drug or until the time of the next anti-CLL therapy (for SAE)
Time to next therapy
Timeframe: From the start of study drug until the start of the next anti-CLL therapy (up to 5 years after the last dose of study drug)
Number of Participants With a Human Anti-human Antibody (HAHA) Positive Result at indicated time points
Timeframe: From start of study drug until 60 days after the last dose of study medication
Number of participants who received no transfusion or at Least One transfusion during the study
Timeframe: From randomization up to 5 years after last dose of study drug
Mean of Health Change Questionnaire (HCQ)
Timeframe: Screening, Cycle 3 Day 1, and 1 M and every 3 month post last dose up to 24 month.
Change from Baseline in Patient Reported Outcome (PRO) as assessed by EuroQoL Five-Dimension (EQ-5D) score at indicated visit
Timeframe: Screening, Cycle 3 Day 1, and 1 M and every 3 month post last dose up to 24 month.
Number of participants with Autoimmune Hemolytic Anaemia (AIHA)
Timeframe: From first dose of study medication to 60 days after the last dose of study medication (for an AE), or up to 5 years after the last dose of study drug or until the time of the next anti-CLL therapy (for SAE)
Number of participants with at least one Grade 3/Grade 4 myelosuppression (Anemia, Neutropenia, and Thrombocytopenia)
Timeframe: From first dose of study medication to 60 days after the last dose of study medication (for an AE), or up to 5 years after the last dose of study drug or until the time of the next anti-CLL therapy (for SAE)
- confirmed and active CLL requiring treatment
- at least one previous treatment for CLL and having achieved a complete or partial remission/response but after a period of 6 or more months, shows evidence of disease progression
- diagnosis of refractory CLL (failure to achieve a complete or partial remission/response or disease progression within 6 months of last anti-CLL treatment
- abnormal/inadequate blood values, liver and kidney function
- confirmed and active CLL requiring treatment
- at least one previous treatment for CLL and having achieved a complete or partial remission/response but after a period of 6 or more months, shows evidence of disease progression
- fully active at a minimum or fully capable of selfcare and up and about more than 50% of waking hours
- age 18yrs or older
- signed written informed consent
- diagnosis of refractory CLL (failure to achieve a complete or partial remission/response or disease progression within 6 months of last anti-CLL treatment
- abnormal/inadequate blood values, liver and kidney function
- certain heart problems, serious significant diseases, AIHA, other current cancers or within the last 5 years
- active or chronic infections
- use of drugs to suppress allergic or inflammatory responses (glucocorticoids)
- CLL transformation
- CLL central nervous system involvement
- current participation in other clinical study
- inability to comply with the protocol activities
- lactating or pregnant women or female patients of child-bearing potential (or male patients with such partners) not willing to use adequate contraception
Trial location(s)
This study does not involve prospective enrollment of participants.
Study documents
If you wish to request for full study report, please contact - [email protected]
Results overview
Refer to study documents
Plain language summaries
Plain language summaries of clinical trial results for Phase 2-4 clinical trials that were initiated on or after January 2022 will be posted by GSK within one year following study completion.