E.1 Medical condition or disease under investigation |
E.1.1 | Medical condition(s) being investigated |
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E.1.1.1 | Medical condition in easily understood language |
LN is inflammation of the kidney that is caused by systemic lupus erythematosus (SLE) which is an autoimmune disease in which the body's immune system mistakenly attacks healthy tissue. |
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E.1.1.2 | Therapeutic area | Diseases [C] - Immune System Diseases [C20] |
MedDRA Classification |
E.1.2 Medical condition or disease under investigation |
E.1.2 | Version | 21.1 |
E.1.2 | Level | PT |
E.1.2 | Classification code | 10025140 |
E.1.2 | Term | Lupus nephritis |
E.1.2 | System Organ Class | 10038359 - Renal and urinary disorders |
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E.1.3 | Condition being studied is a rare disease | No |
E.2 Objective of the trial |
E.2.1 | Main objective of the trial |
To evaluate the efficacy of obinutuzumab compared with placebo based on proportion of patients who achieve a complete renal response (CRR) at Week (WK) 76 |
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E.2.2 | Secondary objectives of the trial |
• To evaluate the efficacy of obinutuzumab compared with placebo based on proportion of patients who achieve proteinuric response at WK 76, overall renal response (ORR) at WK 50, proportion of patients who experience death or renal-related events and mean change in eGFR from baseline to WK 76, change in anti-double stranded DNA antibody (anti-dsDNA) titer and C3 from baseline to WK 50, change eGFR from baseline to WK 76, change in SLE Disease Activity Index 2000 (SLEDAI-2K) from baseline to WK 76, proportion of patients who achieve CRR with serum creatinine criteria at WK 76. • To evaluate safety of obinutuzumab compared with placebo • To characterize obinutuzumab pharmacokinetic profile • To evaluate immune response to obinutuzumab • To characterize obinutuzumab-induced changes in circulating B-cells |
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E.2.3 | Trial contains a sub-study | No |
E.3 | Principal inclusion criteria |
- Age 18-75 years - Ability to comply with the study protocol, in the investigator's judgment - Active or active/chronic International Society of Nephrology / Renal Pathology Society (ISN/RPS) 2003 Class III or IV proliferative LN by renal biopsy performed in the 6 months prior to screening or during screening - SLE according to the 2019 European League Against Rheumatism/ American College of Rheumatology (EULAR/ACR) Classification Criteria, which are met by the presence of Class III or IV LN (above) and: Current or past positive antinuclear antibody (ANA), as evidenced by ANA at a titer of >= 1:80 on HEp-2 cells or an equivalent positive ANA test at least once - Urinary protein-to-creatinine ratio >= 1g/g on a 24-hour collection at screening - Receipt of at least one dose of pulse methylprednisolone IV (>= 250 mg) or equivalent for treatment of the current episode of active LN during the 6 months prior to screening or during screening or during screening; or to be given on Day 1 prior to the first infustion. A maximum of 3 g methylprednisolone IV or equivalent during the 4 weeks prior to screening or during screening is allowed. - For women of childbearing potential: agreement to remain abstinent or use highly effective contraception, and agreement to refrain from donating eggs, women must remain abstinent or use two reliable methods of contraception, including at least one method with a failure rate of < 1% per year, during study treatment and for 18 months after the final dose of obinutuzumab and 6 weeks after the final dose of mycophenolate mofetil (MMF) - For men: agreement to remain abstinent or use contraceptive methods, and agreement to refrain from donating sperm, with a female partner of childbearing potential who is not pregnant, men who are not surgically sterile must remain abstinent or use a condom plus an additional contraceptive method used by the female partner that together result in a failure rate of < 1% per year during the treatment period and for 90 days after the final dose of MMF and for 90 days after the final dose of obinutuzumab study drug; With a pregnant female partner, men must remain abstinent or use a condom during the treatment period and for 90 days after the final dose of MMF and for 12 months after the final dose of obinutuzumab or placebo to avoid exposing the embryo.
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E.4 | Principal exclusion criteria |
- Pregnant or breastfeeding, or intending to become pregnant during the study or within 18 months after the final dose of obinutuzumab or placebo or within 6 weeks after the final dose of MMF - Severe renal impairment, as defined by eGFR < 30 mL/min/1.73 m² or the need for dialysis or renal transplantation - Sclerosis in > 50% of glomeruli on renal biopsy - Presence of rapidly progressive glomerulonephritis - Receipt of an excluded therapy - Severe, active central nervous system SLE, including retinitis, poorly-controlled seizure disorder, acute confusional state, myelitis, stroke, cerebellar ataxia, or dementia - High risk for clinically-significant bleeding or any condition requiring plasmapheresis, intravenous immunoglobulin, or acute blood product transfusions - Significant or uncontrolled medical disease which, in the investigators opinion, would preclude patient participation - HIV and Tuberculosis infection; latent TB after completion of appropriate treatment is not exclusionary. - Active infection of any kind, excluding fungal infection of the nail beds - Any major episode of infection that required hospitalization or treatment with IV or oral antibiotics or anti-infectives during the 8 weeks prior to screening or during screening - History of serious recurrent or chronic infection - History of progressive multifocal leukoencephalopathy - History of cancer, including solid tumors, hematological malignancies, and carcinoma in situ, within the past 5 years - Major surgery requiring hospitalization during the 4 weeks prior to screening or during screening - Current alcohol or drug abuse or history of alcohol or drug abuse within 12 months prior to screening or during screening - Intolerance or contraindication to study therapies - Laboratory parameters • AST or ALT > 2.5 × upper limit of normal (ULN) • Amylase or lipase > 2 × ULN • Neutrophils < 1.5 × 10³/µL • Positive hepatitis B surface antigen (HBsAg) • Positive hepatitis C serology • Hemoglobin < 7 g/dL, unless caused by autoimmune hemolytic anemia resulting from SLE • Platelet count < 25,000/µL • Positive serum human chorionic gonadotropin measured at screening
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E.5 End points |
E.5.1 | Primary end point(s) |
Proportion of patients who achieve a CRR at Week 76 |
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E.5.1.1 | Timepoint(s) of evaluation of this end point |
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E.5.2 | Secondary end point(s) |
1. Proportion of patients who achieve a proteinuric response at Week 76 2. Proportion of patients who achieve CRR with successful prednisone taper at Week 76 3. Proportion of patients who achieve an ORR, evaluated at Week 50 4. Proportion of patients who experience death or renal-related events through Week 76 5. Mean change in eGFR from baseline to Week 76 6. Change in anti-dsDNA titer from baseline to Week 50 7. Change in C3 from baseline to Week 50 8. Change in SLEDAI-2K from baseline to Week 76 9. Time to onset of CRR over the course of 76 weeks 10. Change in FACIT-F scale from baseline to Week 76 11. Proportion of patients who achieve CRR with serum creatinine criteria at Week 76 12. Incidence and severity of adverse events, with severity determined according to National Cancer Institute Common Terminology Criteria for Adverse Events (NCI CTCAE) v5.0 13. To characterize adverse events of special interest, including among others, IRRs, neutropenia, infections and thrombocytopenia. 14. Change from baseline in targeted vital signs 15. Change from baseline in targeted clinical laboratory test results 16. Maximum observed concentration (Cmax) of obinutuzumab 17. Minimum observed concentration (Cmix) of obinutuzumab 18. Area under concentration- time curve (AUC) of obinutuzumab 19. Clearance (CL) of obinutuzumab 20. Prevalence of anti-drug antibodies (ADAs) at baseline and incidence of ADAs post-treatment during the study 21. Total peripheral B-cell count at specified timepoints |
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E.5.2.1 | Timepoint(s) of evaluation of this end point |
1-2. At Week 76 3. At Week 50 4-5. At Week 76 6-7. Baseline (Day 1) to Week 50 8-11. Baseline to Week 76 12-15. Up to 8 years 16-19. Baseline, WK 2, 4, 12, 24, 26, 36, 50, 52, 64, 76, 80, 106, 132,158, 184, every 6 months thereafter, unplanned visit (UV) and at study discontinuation (SD); open label extension(OLE): Baseline, Week 2, 4, 12, 24, 26, 36, 52, 64, 76, every 6 months thereafter, UV, SD 20. Baseline , Week 2, 4, 12, 24, 36, 50, 76, 80, 106, 132, 158, 184, every 6 months therafter, unplanned visit (UV) and at study discontinuation(SD); open label extension(OLE): WK 0, 2, 12, 24, 36, 52, 76, every 6 months thereafter, UV, SD 21. Baseline, WK4, 24 ,50, 76, 106, 132, 158, 184 every 6 months therafter, open label extension(OLE): WK 0, 4, 24, 52, 76, every 6 months therafter
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E.6 and E.7 Scope of the trial |
E.6 | Scope of the trial |
E.6.1 | Diagnosis | No |
E.6.2 | Prophylaxis | No |
E.6.3 | Therapy | No |
E.6.4 | Safety | Yes |
E.6.5 | Efficacy | Yes |
E.6.6 | Pharmacokinetic | Yes |
E.6.7 | Pharmacodynamic | No |
E.6.8 | Bioequivalence | No |
E.6.9 | Dose response | No |
E.6.10 | Pharmacogenetic | No |
E.6.11 | Pharmacogenomic | No |
E.6.12 | Pharmacoeconomic | No |
E.6.13 | Others | No |
E.7 | Trial type and phase |
E.7.1 | Human pharmacology (Phase I) | No |
E.7.1.1 | First administration to humans | No |
E.7.1.2 | Bioequivalence study | No |
E.7.1.3 | Other | No |
E.7.1.3.1 | Other trial type description | |
E.7.2 | Therapeutic exploratory (Phase II) | No |
E.7.3 | Therapeutic confirmatory (Phase III) | Yes |
E.7.4 | Therapeutic use (Phase IV) | No |
E.8 Design of the trial |
E.8.1 | Controlled | Yes |
E.8.1.1 | Randomised | Yes |
E.8.1.2 | Open | No |
E.8.1.3 | Single blind | No |
E.8.1.4 | Double blind | Yes |
E.8.1.5 | Parallel group | No |
E.8.1.6 | Cross over | No |
E.8.1.7 | Other | No |
E.8.2 | Comparator of controlled trial |
E.8.2.1 | Other medicinal product(s) | No |
E.8.2.2 | Placebo | Yes |
E.8.2.3 | Other | No |
E.8.2.4 | Number of treatment arms in the trial | 3 |
E.8.3 |
The trial involves single site in the Member State concerned
| No |
E.8.4 | The trial involves multiple sites in the Member State concerned | Yes |
E.8.4.1 | Number of sites anticipated in Member State concerned | 8 |
E.8.5 | The trial involves multiple Member States | No |
E.8.6 Trial involving sites outside the EEA |
E.8.6.1 | Trial being conducted both within and outside the EEA | Yes |
E.8.6.2 | Trial being conducted completely outside of the EEA | No |
E.8.6.3 | If E.8.6.1 or E.8.6.2 are Yes, specify the regions in which trial sites are planned |
Argentina |
Brazil |
Canada |
Colombia |
Israel |
Mexico |
Peru |
South Africa |
United States |
Russian Federation |
France |
Germany |
Italy |
Poland |
Spain |
United Kingdom |
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E.8.7 | Trial has a data monitoring committee | Yes |
E.8.8 |
Definition of the end of the trial and justification where it is not the last
visit of the last subject undergoing the trial
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The end of this study is defined as the date when the last patient, last visit (LPLV), occurs or the date at which SFU is received from the last patient up to a maximum of 18 months from the last obinutuzumab infusion (blinded and open-label). The end of the study is expected to occur approximately 8.5 years after the last patient is enrolled. In addition, the Sponsor may decide to terminate the study at any time. |
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E.8.9 Initial estimate of the duration of the trial |
E.8.9.1 | In the Member State concerned years | 11 |
E.8.9.1 | In the Member State concerned months | |
E.8.9.1 | In the Member State concerned days | |
E.8.9.2 | In all countries concerned by the trial years | 11 |