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A Study of Obinutuzumab in Chinese Participants With CD20+ Malignant Disease

Primary Purpose

Lymphocytic Leukemia, Chronic, Diffuse Large B-cell Lymphoma, Follicular Lymphoma

Status
Completed
Phase
Phase 1
Locations
China
Study Type
Interventional
Intervention
Obinutuzumab
Sponsored by
Hoffmann-La Roche
About
Eligibility
Locations
Arms
Outcomes
Full info

About this trial

This is an interventional treatment trial for Lymphocytic Leukemia, Chronic, Diffuse Large B-cell Lymphoma, Follicular Lymphoma

Eligibility Criteria

18 Years - undefined (Adult, Older Adult)All SexesDoes not accept healthy volunteers

Inclusion Criteria:

  • Diagnosis of CD20+ B-cell lymphoma or B-CLL
  • Refractory/relapsed CLL, FL, and DLBCL
  • At least 1 measurable lesion (greater than [>] 1.5 centimeters [cm] in its largest dimension) with the exception of CLL
  • Eastern Cooperative Oncology Group (ECOG) performance status of 0 or 1
  • Life expectancy >6 months

Exclusion Criteria:

  • Prior use of any investigational antibody therapy within 6 months of study start
  • Prior use of any anti-cancer vaccine
  • Prior administration of rituximab within 3 months of study start
  • Prior administration of radioimmunotherapy 3 months prior to study entry
  • Central nervous system lymphoma
  • History of other malignancy
  • Evidence of significant, uncontrolled concomitant disease
  • Abnormal laboratory values
  • Patients with progressive multifocalleukoencephalopathy (PML)
  • Infection with human immunodeficiency virus (HIV), hepatitis B or hepatitis C

Sites / Locations

Arms of the Study

Arm 1

Arm 2

Arm 3

Arm Type

Experimental

Experimental

Experimental

Arm Label

CLL: 1000 mg Obinutuzumab

DLBCL: 1000 mg Obinutuzumab

FL: 1000 mg Obinutuzumab

Arm Description

Participants with chronic lymphocytic leukemia (CLL) will receive 1000 milligrams (mg) obinutuzumab as an intravenous (IV) infusion, on Day 1 of each 21-day cycle for a maximum of 8 cycles. The first infusion on Cycle 1 Day 1 will be given over two days: Day 1 and Day 2. Additional doses of obinutuzumab will be administered on Cycle 1 Day 8 and Day 15.

Participants with diffuse large B-cell lymphoma (DLBCL) will receive 1000 mg obinutuzumab as an IV infusion, on Day 1 of each 21-day cycle for a maximum of 8 cycles. Additional doses of obinutuzumab will be administered on Cycle 1 Day 8 and Day 15.

Participants with follicular lymphoma (FL) will receive 1000 mg obinutuzumab as an IV infusion, on Day 1 of each 21-day cycle for a maximum of 8 cycles. Additional doses of obinutuzumab will be administered on Cycle 1 Day 8 and Day 15.

Outcomes

Primary Outcome Measures

Area Under the Serum Concentration Time Curve From Zero to Day 7 (AUC0-7) of Obinutuzumab on Day 1, Cycle 1
DLBCL and FL are sub-types of Non-Hodgkin's Lymphoma (NHL) and time frame for these 2 groups was presented under NHL. For CLL, pharmacokinetic (PK) parameters were from Cycle 1 Day 1 and Day 2 dosing, due to split dosing.
Maximum Observed Serum Concentration (Cmax) of Obinutuzumab on Day 1, Cycle 1
DLBCL and FL are sub-types of NHL and time frame for these 2 groups was presented under NHL. For CLL, PK parameters were from Cycle 1 Day 1 and Day 2 dosing, due to split dosing.
Area Under the Serum Concentration Versus Time Curve From 0 to Day 21 (AUC0-21) of Obinutuzumab at Cycle 8
Cmax of Obinutuzumab at Cycle 8

Secondary Outcome Measures

Time to Maximum Observed Serum Concentration (Tmax) of Obinutuzumab at Cycle 8
Apparent Terminal Half-life (t1/2)
Half-life is the time measured for the serum concentration of study drug to decrease (Dec) by one half.
Volume of Distribution at Steady State (Vss) of Obinutuzumab at Cycle 8
Vss reflects the actual blood and tissue volume into which a drug is distributed and the relative binding of drug to protein in these spaces.
Total Systemic Clearance at Steady State (CLss) of Obinutuzumab at Cycle 8
Clearance of a drug is a measure of the rate at which a drug is metabolized or eliminated by normal biological processes.
Minimum Observed Serum Concentration of Obinutuzumab
Percentage of Participants With Complete Response (CR), CR Unconfirmed (CRu) at End of Treatment (1 Month After Cycle 8) in NHL Participants (DLBCL and FL Participants) Per Cheson 1999 Criteria
CR: 1) Disappearance of clinical and radiographic evidence of disease, related symptoms and normalization of biochemical abnormalities definitely assignable to NHL, 2) Lymph nodes (LN) and nodal masses regressed to normal size after therapy (AT) (≤1.5 centimeters [cm] in their greatest transverse diameter [GTD] for LN greater than (>) 1.5 cm before therapy [BT]). LN that were 1.1 to 1.5 cm in their GTD BT decreased to ≤1 cm in GTD AT, or >75% in the sum of the products (SPD) of the GTD, 3) Enlarged spleen regressed in size and not palpable, 4) Absence of macroscopic nodules, 5) Enlarged organs decreased in size, and 6) If the bone marrow (BM) was involved, the infiltrate must be cleared on repeat BM aspirate and biopsy. CRu included those participants who met CR Criteria 1 and 3, but with 1 or more of the following features: a) A residual LN mass >1.5 cm in GTD that has regressed by more than 75% in their SPD, and b) Indeterminate BM (increased [Inc] number or size of aggregates).
Percentage of Participants With Partial Response (PR), Stable Disease (SD), and Progressive Disease (PD) at End of Treatment (1 Month After Cycle 8) in NHL Participants (DLBCL and FL Participants) Per Cheson 1999 Criteria
PR: 1) ≥50% decrease in SPD of the 6 largest dominant nodes/nodal masses. These nodes or masses selected according to the following features: a) clearly measurable in ≥2 perpendicular dimensions, b) from as disparate regions of the body as possible, and c) included mediastinal and retroperitoneal areas of disease. 2) No increase in size of other nodes (liver/spleen). 3) Splenic and hepatic nodules regressed by ≥50% in SPD. 4) With exception of splenic and hepatic nodules, involvement of other organs was considered assessable and not measurable disease. 5) BM assessment is irrelevant for determination of a PR because it was assessable and not measurable disease; however, if positive, the cell type was specified. 6) No new sites of disease. PD requires the following: 1) ≥50% increase from nadir in the SPD of any previously identified abnormal node for PRs or nonresponders. 2) Appearance of any new lesion during or at the end of therapy. SD is defined as less than a PR but not PD.
Percentage of Participants With Best Overall Response (BOR) of CR, CRu at Anytime During Study in NHL Participants (DLBCL and FL Participants) Per Cheson 1999 Criteria
CR: 1) Disappearance of clinical and radiographic evidence of disease, related symptoms and normalization of biochemical abnormalities definitely assignable to NHL, 2) LN and nodal masses regressed to normal size AT (≤1.5 cm] in their GTD for LN >1.5 cm BT). LN that were 1.1 to 1.5 cm in their GTD BT decreased to ≤1 cm in GTD AT, or >75% in the SPD of the GTD, 3) Enlarged spleen regressed in size and not palpable, 4) Absence of macroscopic nodules in any organs, 5) Enlarged organs decreased in size, and 6) If the BM was involved, the infiltrate must be cleared on repeat BM aspirate and biopsy. CRu included those participants who met CR Criteria 1 and 3, but with 1 or more of the following features: a) A residual LN mass >1.5 cm in GTD that has regressed by more than 75% in their SPD, b) Indeterminate BM (increased number or size of aggregates).
Percentage of Participants With BOR of PR, SD, and PD at Anytime During Study in NHL Participants (DLBCL and FL Participants) Per Cheson 1999 Criteria
PR: 1) ≥50% decrease in SPD of the 6 largest dominant nodes/nodal masses. These nodes or masses selected according to the following features: a) clearly measurable in ≥2 perpendicular dimensions, b) from as disparate regions of the body as possible, and c) included mediastinal and retroperitoneal areas of disease. 2) No increase in size of other nodes (liver/spleen). 3) Splenic and hepatic nodules regressed by ≥50% in SPD. 4) With exception of splenic and hepatic nodules, involvement of other organs was considered assessable and not measurable disease. 5) BM assessment is irrelevant for determination of a PR because it was assessable and not measurable disease; however, if positive, the cell type was specified. 6) No new sites of disease. PD requires the following: 1) ≥50% increase from nadir in the SPD of any previously identified abnormal node for PRs or nonresponders. 2) Appearance of any new lesion during or at the end of therapy. SD is defined as less than a PR but not PD.
Percentage of Participants With Complete Remission (CRe), CRe With Incomplete BM Recovery (CRi) at End of Treatment (1 Month After Cycle 8) in CLL Participants According to International Workshop on Chronic Lymphocytic Leukemia (IWCLL) 2008 Guidelines
CRe required the following criteria as assessed, at least 2 months from completing therapy: a) peripheral blood lymphocytes (PBL) less than (<) 4 x 10^9/L, b) Absence of significant lymphadenopathy (LD) by physical examination (PE), c) No hepatomegaly/splenomegaly (HM/SM) by PE, d) Absence of constitutional symptoms and e) Blood counts above the following values (i. Neutrophils [Neu] >1.5 x 10^9/L without the need for exogenous growth factors [EGF], ii. Platelets (Plt) >100 x 10^9/L without the need for EGF, and iii. Hemoglobin (Hb) >11.0 g/dL without blood transfusion or need for erythropoietin), and d) Once clinical and laboratory reports demonstrated CRe, a BM aspirate and biopsy was performed at least 2 months after the last treatment; to define a CRe, BM sample should be normocellular for age, <30% of the cells being PBL and lymphoid nodules absent. CRi: CRe but persistent anemia/thrombocytopenia/neutropenia unrelated to CLL, but related to drug toxicity.
Percentage of Participants With PR, SD, and PD at End of Treatment (1 Month After Cycle 8) in CLL Participants According to IWCLL 2008 Guidelines
Group A: a)Dec LN size by ≥50% either in SPD of 6 LN or largest diameter of enlarged LN (ELN) detected BT, b)Reduction (Red) in BT enlargement of liver, c)Red in BT enlargement of spleen, d)Dec in PBL by ≥50% from baseline, e)A 50% Red in BM infiltrate or B-lymphoid nodules in BM and f)No Inc in any LN and no new ELN. Group B: a)Plt count=100,000/µL or Inc of ≥50% over baseline, b)Hb >11 g/dL or ≥50% Inc over baseline, c)Neu > 1500/µL or > 50% Inc over baseline. PR is considered as achieved if 2 of Group A criteria and 1 of Group B criteria were met for ≥2 months. PD is defined as LD (appearance of new lesion [ELN], SM, HM or other organ infiltrates) or Inc by ≥50% in greatest determined diameter of any previous site or Inc in previously noted enlargement of liver/spleen by ≥50% or new appearance of HM/SM or an Inc in number of PBL ≥50% or transformation to a more aggressive histology or occurrence of cytopenia attributable to CLL. SD is defined as less than a PR but is not PD.
Percentage of Participants With BOR of CRe, CRi at Anytime During the Study in CLL Participants According to IWCLL 2008 Guidelines
CRe required the following criteria as assessed, at least 2 months from completing therapy: a) PBL <4 x 10^9/L, b) Absence of significant LD by PE, c) No HM/SM by PE, d) Absence of constitutional symptoms and e) Blood counts above the following values (i. Neu >1.5 x 10^9/L without the need for EGF, ii. Plt >100 x 10^9/L without the need for EGF, and iii. Hb >11.0 g/dL without blood transfusion or need for EGF, and d) Once clinical and laboratory reports demonstrated CRe, a BM aspirate and biopsy was performed at least 2 months after the last treatment; to define a CRe, BM sample should be normocellular for age, <30% of the cells being PBL and lymphoid nodules absent. CRi: CRe but persistent anemia/thrombocytopenia/neutropenia unrelated to CLL, but related to drug toxicity.
Percentage of Participants With BOR of PR, SD, and PD at Anytime During Study in CLL Participants According to IWCLL 2008 Guidelines
Group A: a)Dec LN size by ≥50% either in SPD of 6 LN or largest diameter of ELN detected BT, b)Red in BT enlargement of liver, c)Red in BT enlargement of spleen, d)Dec in PBL by ≥50% from baseline, e)A 50% Red in BM infiltrate or B-lymphoid nodules in BM and f)No Inc in any LN and no new ELN. Group B: a)Plt count=100,000/µL or Inc of ≥50% over baseline, b)Hb >11 g/dL or ≥50% Inc over baseline, c)Neu > 1500/µL or > 50% Inc over baseline. PR is considered as achieved if 2 of Group A criteria and 1 of Group B criteria were met for ≥2 months. PD is defined as LD (appearance of new lesion [ELN], SM, HM or other organ infiltrates) or Inc by ≥50% in greatest determined diameter of any previous site or Inc in previously noted enlargement of liver/spleen by ≥50% or new appearance of HM/SM or an Inc in number of PBL ≥50% or transformation to a more aggressive histology or occurrence of cytopenia attributable to CLL. SD is defined as less than a PR but is not PD.
Number of Participants With Positive Human Anti-Human Antibodies (HAHA)
For the detection of HAHA, serum samples were initially analyzed using a validated enzyme linked immunosorbent assay (ELISA) method (screening assay, tier 1). The lower limit of quantification (LLOQ) in undiluted serum was 18.4 nanograms per milliliter (ng/mL). The precision ranged from 4.85 percent (%) to 16.0%. In serum samples found positive, the presence of specific anti-obinutuzumab antibodies was confirmed or excluded using the same ELISA method with an appropriate immunocompetition step (addition of excess obinutuzumab, confirmation assay, tier 2). Samples were confirmed as containing specific anti-obinutuzumab antibodies if there was a signal reduction ≥85.7% in the presence of obinutuzumab.
Number of Participants With Positive Human Anti-Chimeric Antibodies (HACA)
Serum concentrations of HACA against rituximab were determined by ELISA. The LLOQ in undiluted serum was 5.00 relative units per milliliter (RU/mL). The precision and accuracy of the assay, as determined from the analysis of quality control samples, were satisfactory throughout the study; precision ranged from 6.4% to 13.6% and accuracy ranged from 88.2% to 94.8%.
Number of Participants With B-cell Depletion or Recovery
Depletion is defined as cluster of differentiation (CD) 19+ B-cell count <0.07 x10^9/L.Recovery is defined as CD19+ B-cell equal to or greater than 0.07 x 10^9/L.
Duration of Depletion of CD19+ B-cell
Depletion is defined as CD19+ B-cell count < 0.07 x 10^9/L. The duration of depletion is defined as the number of days between first assessment of B-cell depletion and the first assessment where CD19+ cell count returned to at least the depletion level from baseline and not followed by any further B-cell depletion. If participant did not return to above depletion level, then the cut off is at the time of last assessment.
Time to Recovery of CD19+ B-cell
Recovery is defined as CD19+ B-cell equal to or greater than 0.07 x 10^9/L. Time to recovery is defined as time between the beginning of depletion and first value after end of treatment that is equal or above 0.07x10^9/L and not exclusively followed by depleted values only. If participant did not return to above recovery level then set to Null.

Full Information

First Posted
September 4, 2012
Last Updated
March 23, 2016
Sponsor
Hoffmann-La Roche
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1. Study Identification

Unique Protocol Identification Number
NCT01680991
Brief Title
A Study of Obinutuzumab in Chinese Participants With CD20+ Malignant Disease
Official Title
A Multi-Center, Open Label, Single Arm, Multiple Dose Study to Assess the Pharmacokinetics of RO5072759 in Chinese Patients With CD20+ Malignant Disease
Study Type
Interventional

2. Study Status

Record Verification Date
March 2016
Overall Recruitment Status
Completed
Study Start Date
September 2012 (undefined)
Primary Completion Date
December 2014 (Actual)
Study Completion Date
December 2014 (Actual)

3. Sponsor/Collaborators

Responsible Party, by Official Title
Sponsor
Name of the Sponsor
Hoffmann-La Roche

4. Oversight

5. Study Description

Brief Summary
This multi-center, open-label, single-arm study will evaluate the pharmacokinetics and safety of obinutuzumab in participants with cluster of differentiation (CD) 20 positive (+) malignant disease. Participants will receive multiple doses of obinutuzumab. The anticipated time on study treatment is 24 weeks.

6. Conditions and Keywords

Primary Disease or Condition Being Studied in the Trial, or the Focus of the Study
Lymphocytic Leukemia, Chronic, Diffuse Large B-cell Lymphoma, Follicular Lymphoma

7. Study Design

Primary Purpose
Treatment
Study Phase
Phase 1
Interventional Study Model
Parallel Assignment
Masking
None (Open Label)
Allocation
Non-Randomized
Enrollment
48 (Actual)

8. Arms, Groups, and Interventions

Arm Title
CLL: 1000 mg Obinutuzumab
Arm Type
Experimental
Arm Description
Participants with chronic lymphocytic leukemia (CLL) will receive 1000 milligrams (mg) obinutuzumab as an intravenous (IV) infusion, on Day 1 of each 21-day cycle for a maximum of 8 cycles. The first infusion on Cycle 1 Day 1 will be given over two days: Day 1 and Day 2. Additional doses of obinutuzumab will be administered on Cycle 1 Day 8 and Day 15.
Arm Title
DLBCL: 1000 mg Obinutuzumab
Arm Type
Experimental
Arm Description
Participants with diffuse large B-cell lymphoma (DLBCL) will receive 1000 mg obinutuzumab as an IV infusion, on Day 1 of each 21-day cycle for a maximum of 8 cycles. Additional doses of obinutuzumab will be administered on Cycle 1 Day 8 and Day 15.
Arm Title
FL: 1000 mg Obinutuzumab
Arm Type
Experimental
Arm Description
Participants with follicular lymphoma (FL) will receive 1000 mg obinutuzumab as an IV infusion, on Day 1 of each 21-day cycle for a maximum of 8 cycles. Additional doses of obinutuzumab will be administered on Cycle 1 Day 8 and Day 15.
Intervention Type
Drug
Intervention Name(s)
Obinutuzumab
Other Intervention Name(s)
RO5072759, GA101
Intervention Description
Multiple doses of obinutuzumab.
Primary Outcome Measure Information:
Title
Area Under the Serum Concentration Time Curve From Zero to Day 7 (AUC0-7) of Obinutuzumab on Day 1, Cycle 1
Description
DLBCL and FL are sub-types of Non-Hodgkin's Lymphoma (NHL) and time frame for these 2 groups was presented under NHL. For CLL, pharmacokinetic (PK) parameters were from Cycle 1 Day 1 and Day 2 dosing, due to split dosing.
Time Frame
Cycle 1-NHL: within 2 hours (h) pre-dose (Pr-D), end of infusion (EoI), 4, 24, 72 and 120 h post-infusion (Po-I) on Day 1; CLL: within 2 h Pr-D, EoI on Days 1,2; 4, 24, 72 and 120 h Po-I on Day 2. NHL and CLL: within 2 h Pr-D on Day 8
Title
Maximum Observed Serum Concentration (Cmax) of Obinutuzumab on Day 1, Cycle 1
Description
DLBCL and FL are sub-types of NHL and time frame for these 2 groups was presented under NHL. For CLL, PK parameters were from Cycle 1 Day 1 and Day 2 dosing, due to split dosing.
Time Frame
Cycle 1-NHL: within 2 h Pr-D, EoI, 4, 24, 72 and 120 h Po-I on Day 1; CLL: within 2 h Pr-D, EoI on Days 1,2; 4, 24, 72 and 120 h Po-I on Day 2. NHL and CLL: within 2 h Pr-D on Day 8
Title
Area Under the Serum Concentration Versus Time Curve From 0 to Day 21 (AUC0-21) of Obinutuzumab at Cycle 8
Time Frame
Cycle 8: within 2 h Pr-D, EoI, 4, 24, 72, 120, 168, 336 (Day 15), and 504 (Day 22) h Po-I on Day 1
Title
Cmax of Obinutuzumab at Cycle 8
Time Frame
Cycle 8: within 2 h Pr-D, EoI, 4, 24, 72, 120, 168, 336 (Day 15), and 504 (Day 22) h Po-I on Day 1
Secondary Outcome Measure Information:
Title
Time to Maximum Observed Serum Concentration (Tmax) of Obinutuzumab at Cycle 8
Time Frame
Cycle 8: within 2 h Pr-D, EoI, 4, 24, 72, 120, 168, 336 (Day 15), and 504 (Day 22) h Po-I on Day 1
Title
Apparent Terminal Half-life (t1/2)
Description
Half-life is the time measured for the serum concentration of study drug to decrease (Dec) by one half.
Time Frame
Cycle 8: within 2 h Pr-D, EoI, 4, 24, 72, 120, 168, 336 (Day 15), and 504 (Day 22) h Po-I on Day 1, 4-week follow-up (Day 29), 3 and 6 months after Cycle 8 dosing
Title
Volume of Distribution at Steady State (Vss) of Obinutuzumab at Cycle 8
Description
Vss reflects the actual blood and tissue volume into which a drug is distributed and the relative binding of drug to protein in these spaces.
Time Frame
Cycle 8: within 2 h Pr-D, EoI, 4, 24, 72, 120, 168, 336 (Day 15), and 504 (Day 22) h Po-I on Day 1
Title
Total Systemic Clearance at Steady State (CLss) of Obinutuzumab at Cycle 8
Description
Clearance of a drug is a measure of the rate at which a drug is metabolized or eliminated by normal biological processes.
Time Frame
Cycle 8: within 2 h Pr-D, EoI, 4, 24, 72, 120, 168, 336 (Day 15), and 504 (Day 22) h Po-I on Day 1
Title
Minimum Observed Serum Concentration of Obinutuzumab
Time Frame
Within 2 hours Pr-D on Day 1 of Cycles 2-8 and on Days 8,15 of Cycle 1
Title
Percentage of Participants With Complete Response (CR), CR Unconfirmed (CRu) at End of Treatment (1 Month After Cycle 8) in NHL Participants (DLBCL and FL Participants) Per Cheson 1999 Criteria
Description
CR: 1) Disappearance of clinical and radiographic evidence of disease, related symptoms and normalization of biochemical abnormalities definitely assignable to NHL, 2) Lymph nodes (LN) and nodal masses regressed to normal size after therapy (AT) (≤1.5 centimeters [cm] in their greatest transverse diameter [GTD] for LN greater than (>) 1.5 cm before therapy [BT]). LN that were 1.1 to 1.5 cm in their GTD BT decreased to ≤1 cm in GTD AT, or >75% in the sum of the products (SPD) of the GTD, 3) Enlarged spleen regressed in size and not palpable, 4) Absence of macroscopic nodules, 5) Enlarged organs decreased in size, and 6) If the bone marrow (BM) was involved, the infiltrate must be cleared on repeat BM aspirate and biopsy. CRu included those participants who met CR Criteria 1 and 3, but with 1 or more of the following features: a) A residual LN mass >1.5 cm in GTD that has regressed by more than 75% in their SPD, and b) Indeterminate BM (increased [Inc] number or size of aggregates).
Time Frame
1 month after the last dose (received on Day 148) of study drug
Title
Percentage of Participants With Partial Response (PR), Stable Disease (SD), and Progressive Disease (PD) at End of Treatment (1 Month After Cycle 8) in NHL Participants (DLBCL and FL Participants) Per Cheson 1999 Criteria
Description
PR: 1) ≥50% decrease in SPD of the 6 largest dominant nodes/nodal masses. These nodes or masses selected according to the following features: a) clearly measurable in ≥2 perpendicular dimensions, b) from as disparate regions of the body as possible, and c) included mediastinal and retroperitoneal areas of disease. 2) No increase in size of other nodes (liver/spleen). 3) Splenic and hepatic nodules regressed by ≥50% in SPD. 4) With exception of splenic and hepatic nodules, involvement of other organs was considered assessable and not measurable disease. 5) BM assessment is irrelevant for determination of a PR because it was assessable and not measurable disease; however, if positive, the cell type was specified. 6) No new sites of disease. PD requires the following: 1) ≥50% increase from nadir in the SPD of any previously identified abnormal node for PRs or nonresponders. 2) Appearance of any new lesion during or at the end of therapy. SD is defined as less than a PR but not PD.
Time Frame
1 month after the last dose (received on Day 148) of study drug
Title
Percentage of Participants With Best Overall Response (BOR) of CR, CRu at Anytime During Study in NHL Participants (DLBCL and FL Participants) Per Cheson 1999 Criteria
Description
CR: 1) Disappearance of clinical and radiographic evidence of disease, related symptoms and normalization of biochemical abnormalities definitely assignable to NHL, 2) LN and nodal masses regressed to normal size AT (≤1.5 cm] in their GTD for LN >1.5 cm BT). LN that were 1.1 to 1.5 cm in their GTD BT decreased to ≤1 cm in GTD AT, or >75% in the SPD of the GTD, 3) Enlarged spleen regressed in size and not palpable, 4) Absence of macroscopic nodules in any organs, 5) Enlarged organs decreased in size, and 6) If the BM was involved, the infiltrate must be cleared on repeat BM aspirate and biopsy. CRu included those participants who met CR Criteria 1 and 3, but with 1 or more of the following features: a) A residual LN mass >1.5 cm in GTD that has regressed by more than 75% in their SPD, b) Indeterminate BM (increased number or size of aggregates).
Time Frame
From screening to up to 1 month after the last dose (received on Day 148) of study drug
Title
Percentage of Participants With BOR of PR, SD, and PD at Anytime During Study in NHL Participants (DLBCL and FL Participants) Per Cheson 1999 Criteria
Description
PR: 1) ≥50% decrease in SPD of the 6 largest dominant nodes/nodal masses. These nodes or masses selected according to the following features: a) clearly measurable in ≥2 perpendicular dimensions, b) from as disparate regions of the body as possible, and c) included mediastinal and retroperitoneal areas of disease. 2) No increase in size of other nodes (liver/spleen). 3) Splenic and hepatic nodules regressed by ≥50% in SPD. 4) With exception of splenic and hepatic nodules, involvement of other organs was considered assessable and not measurable disease. 5) BM assessment is irrelevant for determination of a PR because it was assessable and not measurable disease; however, if positive, the cell type was specified. 6) No new sites of disease. PD requires the following: 1) ≥50% increase from nadir in the SPD of any previously identified abnormal node for PRs or nonresponders. 2) Appearance of any new lesion during or at the end of therapy. SD is defined as less than a PR but not PD.
Time Frame
From screening to up to 1 month after the last dose (received on Day 148) of study drug
Title
Percentage of Participants With Complete Remission (CRe), CRe With Incomplete BM Recovery (CRi) at End of Treatment (1 Month After Cycle 8) in CLL Participants According to International Workshop on Chronic Lymphocytic Leukemia (IWCLL) 2008 Guidelines
Description
CRe required the following criteria as assessed, at least 2 months from completing therapy: a) peripheral blood lymphocytes (PBL) less than (<) 4 x 10^9/L, b) Absence of significant lymphadenopathy (LD) by physical examination (PE), c) No hepatomegaly/splenomegaly (HM/SM) by PE, d) Absence of constitutional symptoms and e) Blood counts above the following values (i. Neutrophils [Neu] >1.5 x 10^9/L without the need for exogenous growth factors [EGF], ii. Platelets (Plt) >100 x 10^9/L without the need for EGF, and iii. Hemoglobin (Hb) >11.0 g/dL without blood transfusion or need for erythropoietin), and d) Once clinical and laboratory reports demonstrated CRe, a BM aspirate and biopsy was performed at least 2 months after the last treatment; to define a CRe, BM sample should be normocellular for age, <30% of the cells being PBL and lymphoid nodules absent. CRi: CRe but persistent anemia/thrombocytopenia/neutropenia unrelated to CLL, but related to drug toxicity.
Time Frame
2 months after the last dose (received on Day 148) of study drug
Title
Percentage of Participants With PR, SD, and PD at End of Treatment (1 Month After Cycle 8) in CLL Participants According to IWCLL 2008 Guidelines
Description
Group A: a)Dec LN size by ≥50% either in SPD of 6 LN or largest diameter of enlarged LN (ELN) detected BT, b)Reduction (Red) in BT enlargement of liver, c)Red in BT enlargement of spleen, d)Dec in PBL by ≥50% from baseline, e)A 50% Red in BM infiltrate or B-lymphoid nodules in BM and f)No Inc in any LN and no new ELN. Group B: a)Plt count=100,000/µL or Inc of ≥50% over baseline, b)Hb >11 g/dL or ≥50% Inc over baseline, c)Neu > 1500/µL or > 50% Inc over baseline. PR is considered as achieved if 2 of Group A criteria and 1 of Group B criteria were met for ≥2 months. PD is defined as LD (appearance of new lesion [ELN], SM, HM or other organ infiltrates) or Inc by ≥50% in greatest determined diameter of any previous site or Inc in previously noted enlargement of liver/spleen by ≥50% or new appearance of HM/SM or an Inc in number of PBL ≥50% or transformation to a more aggressive histology or occurrence of cytopenia attributable to CLL. SD is defined as less than a PR but is not PD.
Time Frame
2 months after the last dose (received on Day 148) of study drug
Title
Percentage of Participants With BOR of CRe, CRi at Anytime During the Study in CLL Participants According to IWCLL 2008 Guidelines
Description
CRe required the following criteria as assessed, at least 2 months from completing therapy: a) PBL <4 x 10^9/L, b) Absence of significant LD by PE, c) No HM/SM by PE, d) Absence of constitutional symptoms and e) Blood counts above the following values (i. Neu >1.5 x 10^9/L without the need for EGF, ii. Plt >100 x 10^9/L without the need for EGF, and iii. Hb >11.0 g/dL without blood transfusion or need for EGF, and d) Once clinical and laboratory reports demonstrated CRe, a BM aspirate and biopsy was performed at least 2 months after the last treatment; to define a CRe, BM sample should be normocellular for age, <30% of the cells being PBL and lymphoid nodules absent. CRi: CRe but persistent anemia/thrombocytopenia/neutropenia unrelated to CLL, but related to drug toxicity.
Time Frame
From screening to up to 2 months after the last dose (received on Day 148) of study drug
Title
Percentage of Participants With BOR of PR, SD, and PD at Anytime During Study in CLL Participants According to IWCLL 2008 Guidelines
Description
Group A: a)Dec LN size by ≥50% either in SPD of 6 LN or largest diameter of ELN detected BT, b)Red in BT enlargement of liver, c)Red in BT enlargement of spleen, d)Dec in PBL by ≥50% from baseline, e)A 50% Red in BM infiltrate or B-lymphoid nodules in BM and f)No Inc in any LN and no new ELN. Group B: a)Plt count=100,000/µL or Inc of ≥50% over baseline, b)Hb >11 g/dL or ≥50% Inc over baseline, c)Neu > 1500/µL or > 50% Inc over baseline. PR is considered as achieved if 2 of Group A criteria and 1 of Group B criteria were met for ≥2 months. PD is defined as LD (appearance of new lesion [ELN], SM, HM or other organ infiltrates) or Inc by ≥50% in greatest determined diameter of any previous site or Inc in previously noted enlargement of liver/spleen by ≥50% or new appearance of HM/SM or an Inc in number of PBL ≥50% or transformation to a more aggressive histology or occurrence of cytopenia attributable to CLL. SD is defined as less than a PR but is not PD.
Time Frame
From screening to up to 2 months after the last dose (received on Day 148) of study drug
Title
Number of Participants With Positive Human Anti-Human Antibodies (HAHA)
Description
For the detection of HAHA, serum samples were initially analyzed using a validated enzyme linked immunosorbent assay (ELISA) method (screening assay, tier 1). The lower limit of quantification (LLOQ) in undiluted serum was 18.4 nanograms per milliliter (ng/mL). The precision ranged from 4.85 percent (%) to 16.0%. In serum samples found positive, the presence of specific anti-obinutuzumab antibodies was confirmed or excluded using the same ELISA method with an appropriate immunocompetition step (addition of excess obinutuzumab, confirmation assay, tier 2). Samples were confirmed as containing specific anti-obinutuzumab antibodies if there was a signal reduction ≥85.7% in the presence of obinutuzumab.
Time Frame
Cycle 1 (Day 1), Cycle 4 (Day 1), 4-week follow-up, 3 and 6 month follow-up
Title
Number of Participants With Positive Human Anti-Chimeric Antibodies (HACA)
Description
Serum concentrations of HACA against rituximab were determined by ELISA. The LLOQ in undiluted serum was 5.00 relative units per milliliter (RU/mL). The precision and accuracy of the assay, as determined from the analysis of quality control samples, were satisfactory throughout the study; precision ranged from 6.4% to 13.6% and accuracy ranged from 88.2% to 94.8%.
Time Frame
Cycle 1, Day 1
Title
Number of Participants With B-cell Depletion or Recovery
Description
Depletion is defined as cluster of differentiation (CD) 19+ B-cell count <0.07 x10^9/L.Recovery is defined as CD19+ B-cell equal to or greater than 0.07 x 10^9/L.
Time Frame
Screening, Cycle 1 (Days 1,8), Cycle 2 (Day 1), Cycle 4 (Day 1), Cycle 6 (Day 1), Cycle 8 (Day 1), 4 weeks after last dose of study drug and every 3 months after last dose of study drug up to 1 year
Title
Duration of Depletion of CD19+ B-cell
Description
Depletion is defined as CD19+ B-cell count < 0.07 x 10^9/L. The duration of depletion is defined as the number of days between first assessment of B-cell depletion and the first assessment where CD19+ cell count returned to at least the depletion level from baseline and not followed by any further B-cell depletion. If participant did not return to above depletion level, then the cut off is at the time of last assessment.
Time Frame
Screening, Cycle 1 (Days 1,8), Cycle 2 (Day 1), Cycle 4 (Day 1), Cycle 6 (Day 1), Cycle 8 (Day 1), 4 weeks after last dose of study drug and every 3 months after last dose of study drug up to 1 year
Title
Time to Recovery of CD19+ B-cell
Description
Recovery is defined as CD19+ B-cell equal to or greater than 0.07 x 10^9/L. Time to recovery is defined as time between the beginning of depletion and first value after end of treatment that is equal or above 0.07x10^9/L and not exclusively followed by depleted values only. If participant did not return to above recovery level then set to Null.
Time Frame
Screening, Cycle 1 (Days 1,8), Cycle 2 (Day 1), Cycle 4 (Day 1), Cycle 6 (Day 1), Cycle 8 (Day 1), 4 weeks after last dose of study drug and every 3 months after last dose of study drug up to 1 year

10. Eligibility

Sex
All
Minimum Age & Unit of Time
18 Years
Accepts Healthy Volunteers
No
Eligibility Criteria
Inclusion Criteria: Diagnosis of CD20+ B-cell lymphoma or B-CLL Refractory/relapsed CLL, FL, and DLBCL At least 1 measurable lesion (greater than [>] 1.5 centimeters [cm] in its largest dimension) with the exception of CLL Eastern Cooperative Oncology Group (ECOG) performance status of 0 or 1 Life expectancy >6 months Exclusion Criteria: Prior use of any investigational antibody therapy within 6 months of study start Prior use of any anti-cancer vaccine Prior administration of rituximab within 3 months of study start Prior administration of radioimmunotherapy 3 months prior to study entry Central nervous system lymphoma History of other malignancy Evidence of significant, uncontrolled concomitant disease Abnormal laboratory values Patients with progressive multifocalleukoencephalopathy (PML) Infection with human immunodeficiency virus (HIV), hepatitis B or hepatitis C
Overall Study Officials:
First Name & Middle Initial & Last Name & Degree
Clinical Trials
Organizational Affiliation
Hoffmann-La Roche
Official's Role
Study Director
Facility Information:
City
Beijing
ZIP/Postal Code
100021
Country
China
City
Beijing
ZIP/Postal Code
100142
Country
China
City
Guangzhou
Country
China
City
Shanghai
ZIP/Postal Code
200025
Country
China

12. IPD Sharing Statement

Citations:
PubMed Identifier
29843792
Citation
Qin Y, Song Y, Shen Z, Du X, Ji W, Hsu W, Zhu J, Shi Y. Safety and efficacy of obinutuzumab in Chinese patients with B-cell lymphomas: a secondary analysis of the GERSHWIN trial. Cancer Commun (Lond). 2018 May 30;38(1):31. doi: 10.1186/s40880-018-0300-5.
Results Reference
derived
PubMed Identifier
28072473
Citation
Zhai J, Qin Y, Zhu J, Song Y, Shen Z, Du X, Jamois C, Brewster M, Shi Y, Shi J. Pharmacokinetics of obinutuzumab in Chinese patients with B-cell lymphomas. Br J Clin Pharmacol. 2017 Jul;83(7):1446-1456. doi: 10.1111/bcp.13232. Epub 2017 Feb 14.
Results Reference
derived

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A Study of Obinutuzumab in Chinese Participants With CD20+ Malignant Disease

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