The objective of this study is to test the efficacy and toxicity of a combined OBINUTUZUMAB/bendamustine therapy or single agent OBINUTUZUMAB in younger (\< 60 years) medically non-fit, 'compromised' patients and in all older patients (≥ 60 years). For the assessment of the antilymphoma activity the overall response rate (ORR)" will be applied as primary endpoint. Overall response is defined as complete or partial response after 19 - 21 weeks.
Study design: This is a randomized, open-label, multicenter phase II trial with a parallel-group design of two groups. Randomization and Interventions: Randomization between Obinutuzumab single agent treatment versus Obinutuzumab plus Bendamustine followed by Obinutuzumab Treatment plans: Arm A: Obinutuzumab single agent Obinutuzumab flat dose of 1000 mg on Day 1 of each of four 28 -day cycles and on Days 8 and 15 of Cycle 1 If at least 'stable disease': Obinutuzumab flat dose of 1000 mg at weeks 21, 29, 37 and 45 Arm B: Obinutuzumab plus Bendamustine Obinutuzumab flat dose of 1000 mg on Day 1 of each of four 28 -day cycles and on Days 8 and 15 of Cycle 1 plus Bendamustine 70 mg/m2 iv d1+2 of each of four 28 -day cycles If at least 'stable disease': Obinutuzumab flat dose of 1000 mg at weeks 21, 29, 37 and 45 The project attempts to establish an evidence based treatment strategy for medically non-fit advanced stage FL-patients who are not eligible for standard therapeutic immunochemotherapy approaches to improve their long term perspectives. It will furthermore provide a prospectively generated data set which will link performance in the assessment scores IADL, G8 and CIRS-G to medical fitness as judged by the treating physician. The generated data will allow using geriatric and functional tests to define medical fitness and to provide a more solid basis for future studies.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Enrollment
46
Obinutuzumab (GA 101) is a first-in-class, potent, intravenously administered type II anti-CD 20 antibody that is developed by Roche AG for the treatment of B-cell malignancies.
Bendamustine belongs formally to the alkylators, but has been shown to have a unique mechanism of action. The dose limiting toxicity of bendamustine is its reversible suppression of bone marrow function with drops in leukocyte and thromobocyte counts.
Klinikum der Universität München
München, Bavaria, Germany
ORR
Overall response is defined as complete or partial response at the end of the initial treatment phase (after 19-21 weeks).
Time frame: week 19 to 21
Event free survival, EFS
Response in accordance with the 2007 Revised Response Criteria for the time from the day of randomization to the date of first documented disease progression, death by any cause, or institution of a new anti-lymphoma treatment.
Time frame: through study completion, up to 5 years
CR
Rate of patients who has a complete response (CR) at the end of induction randomization
Time frame: End of Induction of each patient, week 19 - 21
TTF
The time to treatment failure will be measured from the day of randomization to the date of failure of initial treatment (no response) or first documented disease progression or death by any cause.
Time frame: Through study completion, up to 5 years
PFS
progression-free survival will be measured from the day of randomization to the date of first documented disease progression or death by any cause.
Time frame: Through study completion, up to 5 years
RD
Duration of remission will be measured for responding patients from the end of initial treatment to the date of first documented disease progression or death by any cause.
Time frame: week 19 up to 5,5 years follow up
Time to next anti-lymphoma treatment
will be measured from the date of randomization to the date of first documented start of a new chemotherapy, radiotherapy or immunotherapy.
Time frame: Through study completion, up to 6.5 years
Overall Survival
will be determined from the date of randomization to the date of death irrespective of cause.
Time frame: Through study completion, up to 5 years
Number of SAEs
Therapy-related toxicities according to the NCI-CTC-criteria will be compared for both treatment arms during the initial treatment and the consolidation treatment period.
Time frame: Through study completion, up to 5 years
Frequency of Hospitalization
The days of hospitalisation will be compared for both treatment arms during the initial treatment, the consolidation treatment period and the first two years after the end of consolidation.
Time frame: Through study completion, up to 3 years (per patient)
Duration of Hospitalization
The duration of hospitalisation will be compared for both treatment arms during the initial treatment, the consolidation treatment period and the first two years after the end of consolidation.
Time frame: Through study completion, up to 3 years (per patient)
Supportive Care
The number of blood transfusions, the application of growth factors and the days of treatment with i.v. antibiotics will be compared for both treatment arms
Time frame: Through study completion, up to 5 years
Incidence of secondary transformation to aggressive lymphoma
Incidence of secondary transformation to aggressive lymphoma
Time frame: Through study completion, up to 5 years
Number of AEs
Incidence of secondary malignancies
Time frame: Through study completion, up to 5 years
Number of participants that had completed the therapy regularly (including: Total cumulative dose of obinutuzumab and bendamustine, number of cycles, duration of treatment)
Time frame: Through study completion, up to 5 years
QoL
Quality of Life Analysis scale measurements using the QLQ-C30 questionnaires are collected over time and will be compared for patients receiving OBINUTUZUMAB single agent versus OBINUTUZUMAB plus bendamustine.
Time frame: Through study completion, up to 5 years
Comorbidity assessment will be performed by using the Instrumental Activities of Daily Living (=IADL)
With the Instrumental Activities of Daily Living (=IADL) the functional status) will be analysed (=instrument to assess independent living skills) The instrument is most useful for identifying how a person is functioning at the present time and for identifying improvement or deterioration over time. There are 8 domains of function measured with the Lawton IADL scale. Historically, women were scored on all 8 areas of function; men were not scored in the domains of food preparation, housekeeping, laundering. However, current recommendations are to assess all domains for both genders. Persons are scored according to their highest level of functioning in that category. A summary score ranges from 0 (low function, dependent) to 8 (high function, independent).
Time frame: Through study completion, up to 6.5 years
Comorbidity assessment will be performed by using the Cumulative Illness Rating Scale for Geriatrics (CIRS-G)
This can be used to measure the burden of current and chronic illnesses in the older adult.This scoring system measures the chronic medical illness ("morbidity") burden while taking into consideration the severity of chronic diseases in 14 items representing individual body systems. The general rules for severity rating are: 0→No problem affecting that system. 1. Current mild problem or past significant problem. 2. Moderate disability or morbidity and/or requires first line therapy. 3. Severe problem and/or constant and significant disability and/or hard to control chronic problems. 4. Extremely severe problem and/or immediate treatment required and/or organ failure and/or severe functional impairment.
Time frame: Through study completion, up to 5 years
Comorbidity assessment will be performed by using the G 8 (=geriatric) 8 screening score
The G8 screening tool was developed to separate fit older cancer patients who were able to receive standard treatment from those that should undergo a geriatric assessment to guide tailoring of therapy. The assessment includes (instrumental) activities of daily living, cognition, mood, nutritional status, mobility, polypharmacy and social support. G8 is an independent predictor of mortality within the first year after inclusion (hazard ratio 3.93; 95 % confidence interval 1.67-9.22, p \< 0.001). The G-8 Score is a screening tool containing 8 questions. The total G-8 score lies between 0 and 17. A higher score indicates a better health status.
Time frame: Through study completion, up to 5 years
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