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NCT04221477 · FLOW

Participant flow

A Study to Evaluate the Efficacy and Safety of Obinutuzumab in Participants With ISN/RPS 2003 Class III or IV Lupus Nephritis · Source last updated 2026-07-21

Results reported by the registry submitting party. Population, time horizon, units and missing values must be read together.

groups
  1. description
    Participants received obinutuzumab, 1000 milligrams (mg) as an intravenous (IV) infusion on Day 1 and Weeks 2, 24, 26, and either Weeks 50 and 52 or Week 52 only, along with mycophenolate mofetil (MMF) and SOC therapy. Placebo was administered at Week 50 for participants not treated with obinutuzumab. Participants with adequate response at Week 76 continued to receive obinutuzumab at Week 80 and every 6 months (Q6M) thereafter. The dose of MMF can be adjusted at the investigator's discretion beginning at Week 80.
    id
    FG000
    title
    Obinutuzumab
  2. description
    Participants received Obinutuzumab matching placebo as an IV infusion on Day 1 and Weeks 2, 24, 26, 50, and 52. Participants also received SOC therapy and MMF. Participants with adequate response at Week 76 continued to receive placebo at Week 80 and Q6M thereafter. The dose of MMF can be adjusted at the investigator's discretion beginning at Week 80.
    id
    FG001
    title
    Placebo
periods
  1. drop Withdraws
    1. reasons
      1. group Id
        FG000
        num Subjects
        1
      2. group Id
        FG001
        num Subjects
        1
      type
      Adverse Event
    2. reasons
      1. group Id
        FG000
        num Subjects
        5
      2. group Id
        FG001
        num Subjects
        4
      type
      Death
    3. reasons
      1. group Id
        FG000
        num Subjects
        1
      2. group Id
        FG001
        num Subjects
        2
      type
      Lack of Efficacy
    4. reasons
      1. group Id
        FG000
        num Subjects
        1
      2. group Id
        FG001
        num Subjects
        2
      type
      Lost to Follow-up
    5. reasons
      1. group Id
        FG000
        num Subjects
        1
      2. group Id
        FG001
        num Subjects
        0
      type
      Non-compliance with Study Drug
    6. reasons
      1. group Id
        FG000
        num Subjects
        0
      2. group Id
        FG001
        num Subjects
        5
      type
      Reason not Specified
    7. reasons
      1. group Id
        FG000
        num Subjects
        0
      2. group Id
        FG001
        num Subjects
        6
      type
      Physician Decision
    8. reasons
      1. group Id
        FG000
        num Subjects
        10
      2. group Id
        FG001
        num Subjects
        14
      type
      Withdrawal by Subject
    9. reasons
      1. group Id
        FG000
        num Subjects
        116
      2. group Id
        FG001
        num Subjects
        102
      type
      Ongoing in the Study
    milestones
    1. achievements
      1. group Id
        FG000
        num Subjects
        135
      2. group Id
        FG001
        num Subjects
        136
      type
      STARTED
    2. achievements
      1. group Id
        FG000
        num Subjects
        136
      2. group Id
        FG001
        num Subjects
        132
      comment
      Safety evaluable population included all participants who received any part of blinded infusion of Obinutuzumab/placebo \& are grouped according to treatment they received. 3 participants from placebo arm were excluded from the safety analysis as they received no treatment post-randomization. 1 participant randomized to the placebo arm received obinutuzumab \& was included in the obinutuzumab arm for safety analysis.
      type
      Safety Population
    3. achievements
      1. group Id
        FG000
        num Subjects
        122
      2. group Id
        FG001
        num Subjects
        120
      type
      Completed Week 76 Assessment
    4. achievements
      1. group Id
        FG000
        num Subjects
        0
      2. group Id
        FG001
        num Subjects
        0
      type
      COMPLETED
    5. achievements
      1. group Id
        FG000
        num Subjects
        135
      2. group Id
        FG001
        num Subjects
        136
      type
      NOT COMPLETED
    title
    Overall Study
pre Assignment Details
Participants were randomized in a 1:1 ratio to Obinutuzumab/placebo. As pre-specified in the statistical analysis plan (SAP), participant flow data for all participants randomized to 1 of the 2 dosing schedules of obinutuzumab (Groups 1 \& 2) were reported in the combined obinutuzumab treatment group. This study is ongoing.
recruitment Details
A total of 271 participants with International Society of Nephrology/ Renal Pathology Society (ISN/RPS) 2003 Class III or IV lupus nephritis (LN) treated with standard-of-care (SOC) therapy took part in the study across 72 sites in 15 countries. This study consists of blinded treatment with obinutuzumab or placebo, followed by open-label treatment (OLT) with obinutuzumab.
Complete source fields
groups
  1. description
    Participants received obinutuzumab, 1000 milligrams (mg) as an intravenous (IV) infusion on Day 1 and Weeks 2, 24, 26, and either Weeks 50 and 52 or Week 52 only, along with mycophenolate mofetil (MMF) and SOC therapy. Placebo was administered at Week 50 for participants not treated with obinutuzumab. Participants with adequate response at Week 76 continued to receive obinutuzumab at Week 80 and every 6 months (Q6M) thereafter. The dose of MMF can be adjusted at the investigator's discretion beginning at Week 80.
    id
    FG000
    title
    Obinutuzumab
  2. description
    Participants received Obinutuzumab matching placebo as an IV infusion on Day 1 and Weeks 2, 24, 26, 50, and 52. Participants also received SOC therapy and MMF. Participants with adequate response at Week 76 continued to receive placebo at Week 80 and Q6M thereafter. The dose of MMF can be adjusted at the investigator's discretion beginning at Week 80.
    id
    FG001
    title
    Placebo
periods
  1. drop Withdraws
    1. reasons
      1. group Id
        FG000
        num Subjects
        1
      2. group Id
        FG001
        num Subjects
        1
      type
      Adverse Event
    2. reasons
      1. group Id
        FG000
        num Subjects
        5
      2. group Id
        FG001
        num Subjects
        4
      type
      Death
    3. reasons
      1. group Id
        FG000
        num Subjects
        1
      2. group Id
        FG001
        num Subjects
        2
      type
      Lack of Efficacy
    4. reasons
      1. group Id
        FG000
        num Subjects
        1
      2. group Id
        FG001
        num Subjects
        2
      type
      Lost to Follow-up
    5. reasons
      1. group Id
        FG000
        num Subjects
        1
      2. group Id
        FG001
        num Subjects
        0
      type
      Non-compliance with Study Drug
    6. reasons
      1. group Id
        FG000
        num Subjects
        0
      2. group Id
        FG001
        num Subjects
        5
      type
      Reason not Specified
    7. reasons
      1. group Id
        FG000
        num Subjects
        0
      2. group Id
        FG001
        num Subjects
        6
      type
      Physician Decision
    8. reasons
      1. group Id
        FG000
        num Subjects
        10
      2. group Id
        FG001
        num Subjects
        14
      type
      Withdrawal by Subject
    9. reasons
      1. group Id
        FG000
        num Subjects
        116
      2. group Id
        FG001
        num Subjects
        102
      type
      Ongoing in the Study
    milestones
    1. achievements
      1. group Id
        FG000
        num Subjects
        135
      2. group Id
        FG001
        num Subjects
        136
      type
      STARTED
    2. achievements
      1. group Id
        FG000
        num Subjects
        136
      2. group Id
        FG001
        num Subjects
        132
      comment
      Safety evaluable population included all participants who received any part of blinded infusion of Obinutuzumab/placebo \& are grouped according to treatment they received. 3 participants from placebo arm were excluded from the safety analysis as they received no treatment post-randomization. 1 participant randomized to the placebo arm received obinutuzumab \& was included in the obinutuzumab arm for safety analysis.
      type
      Safety Population
    3. achievements
      1. group Id
        FG000
        num Subjects
        122
      2. group Id
        FG001
        num Subjects
        120
      type
      Completed Week 76 Assessment
    4. achievements
      1. group Id
        FG000
        num Subjects
        0
      2. group Id
        FG001
        num Subjects
        0
      type
      COMPLETED
    5. achievements
      1. group Id
        FG000
        num Subjects
        135
      2. group Id
        FG001
        num Subjects
        136
      type
      NOT COMPLETED
    title
    Overall Study
pre Assignment Details
Participants were randomized in a 1:1 ratio to Obinutuzumab/placebo. As pre-specified in the statistical analysis plan (SAP), participant flow data for all participants randomized to 1 of the 2 dosing schedules of obinutuzumab (Groups 1 \& 2) were reported in the combined obinutuzumab treatment group. This study is ongoing.
recruitment Details
A total of 271 participants with International Society of Nephrology/ Renal Pathology Society (ISN/RPS) 2003 Class III or IV lupus nephritis (LN) treated with standard-of-care (SOC) therapy took part in the study across 72 sites in 15 countries. This study consists of blinded treatment with obinutuzumab or placebo, followed by open-label treatment (OLT) with obinutuzumab.

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