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An Exploratory Maintenance Trial of BI 655064 in Patients With Lupus Nephritis

An Exploratory Maintenance Trial Evaluating the Effect of BI 655064 in Lupus Nephritis Patients Who Have Achieved a Meaningful Response Either at the End of 1293.10 or After an Induction Treatment Outside of 1293.10

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03385564
Enrollment
69
Registered
2017-12-28
Start date
2018-01-09
Completion date
2021-07-27
Last updated
2022-07-13

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Lupus Nephritis

Brief summary

The main objectives of this trial are to evaluate the long term efficacy and safety of different doses of BI 655064 versus placebo as add-on therapy to Standard of Care (SOC) during maintenance therapy for lupus nephritis.

Detailed description

Initially planned participating countries: Argentina, Australia, Canada, Colombia, Czech Republic, France, Germany, Greece, Hong Kong, Italy, Japan, Republic of Korea, Malaysia, Mexico, Philippines, Poland, Portugal, Serbia, Spain, Taiwan, Thailand, United Kingdom, United States

Interventions

subcutaneous injection

DRUGPlacebo

subcutaneous injection

Sponsors

Boehringer Ingelheim
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
DOUBLE (Subject, Investigator)

Eligibility

Sex/Gender
ALL
Age
18 Years to 70 Years
Healthy volunteers
No

Inclusion criteria

* Male or female patients. * Women of childbearing potential and men able to father a child must be ready and able to use two reliable methods of birth control simultaneously, one of which must be highly effective. Highly effective birth control per International Conference on Harmonisation (ICH) M3(R2) is a method that result in a low failure rate of less than 1% per year when used consistently and correctly. The reliable methods of birth control must be used before starting Mycophenolate mofetil/Azathioprine (MMF/AZA) and the trial drug; then continue during the trial period; and for at least 50 days after the last dose of MMF/AZA and trial medication. In case a female patient is treated with AZA the contraception shall continue for 90 days after treatment with AZA.A list of contraception methods meeting these criteria is provided in the patient information. * Sexually active men must be ready to use condoms during treatment with MMF/AZA and for at least 90 days after cessation of MMF/AZA. * Permanent sterilisation methods include hysterectomy, bilateral oophorectomy and bilateral salpingectomy. * Tubal ligation is NOT a method of permanent sterilisation. * A postmenopausal state is defined as no menses for 12 months without an alternative medical cause. * Signed and dated written informed consent in accordance with ICH-GCP and local legislation prior to admission to the trial. For Group 1 patients only: \- Achieved either a Complete renal Response (CRR) or a Partial Renal Response (PRR) or proteinuria ≤ 1g/d (or UP/UC ≤ 1) at the end of 1293.10.

Exclusion criteria

* Evidence of current or previous clinically significant diseases or medical conditions other than lupus, or findings of the medical examination (including vital signs and ECG) that, in the opinion of the investigator, would compromise the safety of the patient or the quality of the data. This criterion provides an opportunity for the investigator to exclude patients based on clinical judgment, even if other eligibility criteria are satisfied. * Significant central nervous system symptoms related to Systemic Lupus Erythematosus (SLE) based on investigators assessment. * Clinically important acute or chronic infections including but not limited to HIV, hepatitis B or C. * Impaired hepatic function defined as serum Aspartate Aminotransferase/Alanine Aminotransferase (AST/ALT), bilirubin or alkaline phosphatase \> 2 x Upper Limit of Normal (ULN). * Estimated glomerular filtration rate (eGFR) \< 30 ml/min/1.73m2 at screening (using CKD-EPI formula). * Known hypersensitivity to any constituents of the trial medication; and/or contraindications to Mycophenolate mofetil (MMF) or Azathioprine (AZA) or glucocorticoids. * The use of any restricted medications or any drug considered likely to interfere with the safe conduct of the trial. * Unable to comply with the protocol in the investigator's opinion. * Chronic alcohol or drug abuse or any condition that, in the investigator's opinion, makes them an unreliable trial patient or unlikely to complete the trial. * Women who are pregnant, nursing, or who plan to become pregnant while in the trial.

Design outcomes

Primary

MeasureTime frameDescription
Percentage of Patients With Complete Renal Response (CRR) and Without Any Renal FlaresAt Week 52The adjusted (model-based, adjusted for race and proteinuria at screening) percentage of patients with complete renal response (CRR) and without any renal flares is reported. A logistic regression model was used including treatment and the covariates: race (Asian versus (vs.) non-Asian) and proteinuria \<3 gram (g)/day vs. ≥3 g/day (or Urine protein (UP)/ Urine creatinine (UC) \<3 vs. UP/UC ≥3) at screening. Complete renal response (CRR) was defined as urine protein (UP) \< 0.5 g/day and either estimated glomerular filtration rate (eGFR) within normal range or decrease in eGFR \< 20% from baseline if eGFR was below normal range (below lower limit of normal \[LLN\], where LLN = 90 mL/min.

Secondary

MeasureTime frameDescription
Percentage of Patients With Proteinuria <0.8 Grams (g)/Day (d) and Without Any Renal Flares at Week 52At Week 52The percentage of patients with proteinuria \<0.8 grams (g)/day (d) and without any renal flares at week 52 is reported.
Percentage of Patients With Complete Renal Response (CRR) at Week 52 and Sustained Steroid Reduction to ≤5 Milligrams (mg)/Day (d) From Week 26 to Week 52At Week 52 (Sustained Steroid Reduction to ≤5 mg/d was evaluated from Week 26 to Week 52).The percentage of patients with complete renal response (CRR) at Week 52 and sustained steroid reduction to ≤5 milligrams (mg)/day (d) from Week 26 to Week 52 is reported. Complete renal response (CRR) was defined as urine protein (UP) \< 0.5 g/day and either estimated glomerular filtration rate (eGFR) within normal range or decrease in eGFR \< 20% from baseline if eGFR was below normal range (below lower limit of normal \[LLN\], where LLN = 90 mL/min.
Percentage of Patients Experiencing at Least One Renal Flare During 52 WeeksAt Week 52The percentage of patients experiencing at least one renal flare during 52 weeks is reported.
Time to First Renal Flare Over the Course of 52 WeeksUp to 52 weeks.The time to first renal flare over the course of 52 weeks is reported.
Percentage of Patients With Confirmed Complete Renal Response (CRR) and Without Any Renal FlaresAt Week 52The percentage of patients with confirmed complete renal response (CRR) (defined as CRR at both Week 42 and Week 52 using urine protein (UP)/urine creatine (UC) ratio \[UP/UC\] from the spot urines) and without any renal flares is reported. Complete renal response (CRR) was defined as urine protein (UP) \< 0.5 g/day and either estimated glomerular filtration rate (eGFR) within normal range or decrease in eGFR \< 20% from baseline if eGFR was below normal range (below lower limit of normal \[LLN\], where LLN = 90 mL/min).
Change From Baseline in Systemic Lupus Erythematosus Disease Activity Index (SLEDAI) Total Score at Week 12At baseline and at Week 12Change from baseline in Systemic Lupus Erythematosus Disease Activity Index (SLEDAI) total score at Week 12 is reported. Change from baseline at Week 12 is calculated as: value at Week 12 - value at baseline. SLEDAI assessment consists of 24 items capturing non-renal and renal symptoms. The total score captures non-renal and renal symptoms. Each of the 24 items has a score ranging from 1 to 8. A participant will get the score if the event of the item presents, while 0 if not. 8 items have the score 8, 6 items have the score 4, 7 items have the score 2, and 3 items have the score 1. The SLEDAI Total score is the sum of the scores of the 24 items, ranging from 0 (better health) to 105 (worse health).
Change From Baseline in Systemic Lupus Erythematosus Disease Activity Index (SLEDAI) Total Score at Week 26At baseline and at Week 26Change from baseline in Systemic Lupus Erythematosus Disease Activity Index (SLEDAI) total score at Week 26 is reported. Change from baseline at Week 26 is calculated as: value at Week 26 - value at baseline. SLEDAI assessment consists of 24 items capturing non-renal and renal symptoms. The total score captures non-renal and renal symptoms. Each of the 24 items has a score ranging from 1 to 8. A participant will get the score if the event of the item presents, while 0 if not. 8 items have the score 8, 6 items have the score 4, 7 items have the score 2, and 3 items have the score 1. The SLEDAI Total score is the sum of the scores of the 24 items, ranging from 0 (better health) to 105 (worse health).
Change From Baseline in Systemic Lupus Erythematosus Disease Activity Index (SLEDAI) Total Score at Week 42At baseline and at Week 42Change from baseline in Systemic Lupus Erythematosus Disease Activity Index (SLEDAI) total score at Week 42 is reported. Change from baseline at Week 42 is calculated as: value at Week 42 - value at baseline. SLEDAI assessment consists of 24 items capturing non-renal and renal symptoms. The total score captures non-renal and renal symptoms. Each of the 24 items has a score ranging from 1 to 8. A participant will get the score if the event of the item presents, while 0 if not. 8 items have the score 8, 6 items have the score 4, 7 items have the score 2, and 3 items have the score 1. The SLEDAI Total score is the sum of the scores of the 24 items, ranging from 0 (better health) to 105 (worse health).
Change From Baseline in Systemic Lupus Erythematosus Disease Activity Index (SLEDAI) Total Score at Week 52At baseline and at Week 52Change from baseline in Systemic Lupus Erythematosus Disease Activity Index (SLEDAI) total score at Week 52 is reported. Change from baseline at Week 52 is calculated as: value at Week 52 - value at baseline. SLEDAI assessment consists of 24 items capturing non-renal and renal symptoms. The total score captures non-renal and renal symptoms. Each of the 24 items has a score ranging from 1 to 8. A participant will get the score if the event of the item presents, while 0 if not. 8 items have the score 8, 6 items have the score 4, 7 items have the score 2, and 3 items have the score 1. The SLEDAI Total score is the sum of the scores of the 24 items, ranging from 0 (better health) to 105 (worse health).
Percentage of Patients With Partial Renal Response (PRR) and Without Any Renal Flares Derived From Urine Protein (UP) 24 Hours (h) Collection at Week 52At Week 52The percentage of patients with partial renal response (PRR) and without any renal flares derived from urine protein (UP) 24 hours (h) collection at Week 52 is reported. Partial renal response (PRR) was defined as at least 50% reduction of proteinuria from baseline if estimated glomerular filtration rate (eGFR) was within normal range at time of assessment or decrease of eGFR \<20% from baseline if eGFR was below normal range at time of assessment.

Countries

Australia, Canada, Czechia, Germany, Greece, Hong Kong, Japan, Malaysia, Mexico, Philippines, Poland, Portugal, South Korea, Thailand, United Kingdom, United States

Participant flow

Recruitment details

This study was to evaluate long-term efficacy and safety of different doses of BI 655064 versus placebo as add-on therapy to standard of care during maintenance treatment for lupus nephritis.

Pre-assignment details

This is an extension trial with the requirement to entry that subjects responded to treatment in 1293.10 (NCT02770170) and had the desire to continue participation in a clinical trial. Subjects were screened for eligibility prior to participation in trial 1293.10 (NCT02770170).

Participants by arm

ArmCount
BI 655064 120 mg
120 milligrams (mg) BI 655064 were administered as solution for subcutaneous injection in a prefilled syringe once every 2 weeks plus the administration of matching placebo as subcutaneous injection in a prefilled syringe once every 2 weeks (in the alternative weeks without BI 655064 administration) over a treatment period of 52 weeks, followed by a 12-week follow-up period. The patients received 1 injection per week.
7
BI 655064 180 mg
180 milligrams (mg) BI 655064 were administered as solution for subcutaneous injection in a prefilled syringe once every 2 weeks plus the administration of matching placebo as subcutaneous injection in a prefilled syringe once every 2 weeks (in the alternative weeks without BI 655064 administration) over a treatment period of 52 weeks, followed by a 12-week follow-up period. The patients received 1 injection per week.
15
BI 655064 240 mg
120 milligrams (mg) BI 655064 were administered as solution for subcutaneous injection in a prefilled syringe once every week (240 mg every 2 weeks) over a treatment period of 52 weeks, followed by a 12-week follow-up period. The patients received 1 injection per week.
21
Placebo
Matching placebo were administered as solution for subcutaneous injection in a prefilled syringe once every week over a treatment period of 52 weeks, followed by a 12-week follow-up period. The patients received 1 injection per week.
26
Total69

Withdrawals & dropouts

PeriodReasonFG000FG001FG002FG003
Overall StudyAdverse Event0033
Overall StudyDeath0010
Overall StudyLack of Efficacy0001
Overall StudyOther than listed0005
Overall StudyWithdrawal by Subject0110

Baseline characteristics

CharacteristicPlaceboTotalBI 655064 120 mgBI 655064 180 mgBI 655064 240 mg
Age, Continuous34.8 Years
STANDARD_DEVIATION 10.9
35.1 Years
STANDARD_DEVIATION 9.9
31.9 Years
STANDARD_DEVIATION 6.5
36.5 Years
STANDARD_DEVIATION 8.7
35.4 Years
STANDARD_DEVIATION 10.5
Ethnicity (NIH/OMB)
Hispanic or Latino
6 Participants19 Participants3 Participants4 Participants6 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
20 Participants50 Participants4 Participants11 Participants15 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Asian
11 Participants28 Participants2 Participants6 Participants9 Participants
Race (NIH/OMB)
Black or African American
0 Participants1 Participants0 Participants0 Participants1 Participants
Race (NIH/OMB)
More than one race
0 Participants1 Participants1 Participants0 Participants0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants1 Participants1 Participants0 Participants0 Participants
Race (NIH/OMB)
White
15 Participants38 Participants3 Participants9 Participants11 Participants
Sex: Female, Male
Female
24 Participants61 Participants5 Participants13 Participants19 Participants
Sex: Female, Male
Male
2 Participants8 Participants2 Participants2 Participants2 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
EG003
affected / at risk
deaths
Total, all-cause mortality
0 / 70 / 151 / 210 / 26
other
Total, other adverse events
6 / 711 / 1515 / 2115 / 26
serious
Total, serious adverse events
1 / 72 / 156 / 214 / 26

Outcome results

Primary

Percentage of Patients With Complete Renal Response (CRR) and Without Any Renal Flares

The adjusted (model-based, adjusted for race and proteinuria at screening) percentage of patients with complete renal response (CRR) and without any renal flares is reported. A logistic regression model was used including treatment and the covariates: race (Asian versus (vs.) non-Asian) and proteinuria \<3 gram (g)/day vs. ≥3 g/day (or Urine protein (UP)/ Urine creatinine (UC) \<3 vs. UP/UC ≥3) at screening. Complete renal response (CRR) was defined as urine protein (UP) \< 0.5 g/day and either estimated glomerular filtration rate (eGFR) within normal range or decrease in eGFR \< 20% from baseline if eGFR was below normal range (below lower limit of normal \[LLN\], where LLN = 90 mL/min.

Time frame: At Week 52

Population: Intent to treat (ITT) set: this patient set included all patients from the treated set (TS) who had a baseline proteinuria (spot urine could be a used if the patient did not have 24 hours urine collections) and a baseline Estimated glomerular filtration rate (eGFR) value. Only subjects with non-missing results were included in the analysis.

ArmMeasureValue (NUMBER)
BI 655064 120 mgPercentage of Patients With Complete Renal Response (CRR) and Without Any Renal Flares51.83 Percentage of participants
BI 655064 180 mgPercentage of Patients With Complete Renal Response (CRR) and Without Any Renal Flares48.15 Percentage of participants
BI 655064 240 mgPercentage of Patients With Complete Renal Response (CRR) and Without Any Renal Flares59.49 Percentage of participants
PlaceboPercentage of Patients With Complete Renal Response (CRR) and Without Any Renal Flares57.51 Percentage of participants
p-value: 0.795780% CI: [-34.192, 22.825]Regression, Logistic
p-value: 0.581180% CI: [-31.178, 12.44]Regression, Logistic
p-value: 0.897280% CI: [-17.534, 21.48]Regression, Logistic
Secondary

Change From Baseline in Systemic Lupus Erythematosus Disease Activity Index (SLEDAI) Total Score at Week 12

Change from baseline in Systemic Lupus Erythematosus Disease Activity Index (SLEDAI) total score at Week 12 is reported. Change from baseline at Week 12 is calculated as: value at Week 12 - value at baseline. SLEDAI assessment consists of 24 items capturing non-renal and renal symptoms. The total score captures non-renal and renal symptoms. Each of the 24 items has a score ranging from 1 to 8. A participant will get the score if the event of the item presents, while 0 if not. 8 items have the score 8, 6 items have the score 4, 7 items have the score 2, and 3 items have the score 1. The SLEDAI Total score is the sum of the scores of the 24 items, ranging from 0 (better health) to 105 (worse health).

Time frame: At baseline and at Week 12

Population: Intent to treat (ITT) set: this patient set included all patients from the treated set (TS) who had a baseline proteinuria (spot urine could be a used if the patient did not have 24 hours urine collections) and a baseline Estimated glomerular filtration rate (eGFR) value. Only subjects with non-missing results were included in the analysis.

ArmMeasureValue (MEAN)Dispersion
BI 655064 120 mgChange From Baseline in Systemic Lupus Erythematosus Disease Activity Index (SLEDAI) Total Score at Week 12-8.4 Score on a scaleStandard Deviation 5.8
BI 655064 180 mgChange From Baseline in Systemic Lupus Erythematosus Disease Activity Index (SLEDAI) Total Score at Week 12-7.5 Score on a scaleStandard Deviation 4.3
BI 655064 240 mgChange From Baseline in Systemic Lupus Erythematosus Disease Activity Index (SLEDAI) Total Score at Week 12-9.3 Score on a scaleStandard Deviation 4.9
PlaceboChange From Baseline in Systemic Lupus Erythematosus Disease Activity Index (SLEDAI) Total Score at Week 12-7.7 Score on a scaleStandard Deviation 6.1
Secondary

Change From Baseline in Systemic Lupus Erythematosus Disease Activity Index (SLEDAI) Total Score at Week 26

Change from baseline in Systemic Lupus Erythematosus Disease Activity Index (SLEDAI) total score at Week 26 is reported. Change from baseline at Week 26 is calculated as: value at Week 26 - value at baseline. SLEDAI assessment consists of 24 items capturing non-renal and renal symptoms. The total score captures non-renal and renal symptoms. Each of the 24 items has a score ranging from 1 to 8. A participant will get the score if the event of the item presents, while 0 if not. 8 items have the score 8, 6 items have the score 4, 7 items have the score 2, and 3 items have the score 1. The SLEDAI Total score is the sum of the scores of the 24 items, ranging from 0 (better health) to 105 (worse health).

Time frame: At baseline and at Week 26

Population: Intent to treat (ITT) set: this patient set included all patients from the treated set (TS) who had a baseline proteinuria (spot urine could be a used if the patient did not have 24 hours urine collections) and a baseline Estimated glomerular filtration rate (eGFR) value. Only subjects with non-missing results were included in the analysis.

ArmMeasureValue (MEAN)Dispersion
BI 655064 120 mgChange From Baseline in Systemic Lupus Erythematosus Disease Activity Index (SLEDAI) Total Score at Week 26-8.7 Score on a scaleStandard Deviation 5.7
BI 655064 180 mgChange From Baseline in Systemic Lupus Erythematosus Disease Activity Index (SLEDAI) Total Score at Week 26-7.9 Score on a scaleStandard Deviation 3.5
BI 655064 240 mgChange From Baseline in Systemic Lupus Erythematosus Disease Activity Index (SLEDAI) Total Score at Week 26-11.3 Score on a scaleStandard Deviation 4.8
PlaceboChange From Baseline in Systemic Lupus Erythematosus Disease Activity Index (SLEDAI) Total Score at Week 26-5.9 Score on a scaleStandard Deviation 5.2
Secondary

Change From Baseline in Systemic Lupus Erythematosus Disease Activity Index (SLEDAI) Total Score at Week 42

Change from baseline in Systemic Lupus Erythematosus Disease Activity Index (SLEDAI) total score at Week 42 is reported. Change from baseline at Week 42 is calculated as: value at Week 42 - value at baseline. SLEDAI assessment consists of 24 items capturing non-renal and renal symptoms. The total score captures non-renal and renal symptoms. Each of the 24 items has a score ranging from 1 to 8. A participant will get the score if the event of the item presents, while 0 if not. 8 items have the score 8, 6 items have the score 4, 7 items have the score 2, and 3 items have the score 1. The SLEDAI Total score is the sum of the scores of the 24 items, ranging from 0 (better health) to 105 (worse health).

Time frame: At baseline and at Week 42

Population: Intent to treat (ITT) set: this patient set included all patients from the treated set (TS) who had a baseline proteinuria (spot urine could be a used if the patient did not have 24 hours urine collections) and a baseline Estimated glomerular filtration rate (eGFR) value. Only subjects with non-missing results were included in the analysis.

ArmMeasureValue (MEAN)Dispersion
BI 655064 120 mgChange From Baseline in Systemic Lupus Erythematosus Disease Activity Index (SLEDAI) Total Score at Week 42-6.6 Score on a scaleStandard Deviation 3.4
BI 655064 180 mgChange From Baseline in Systemic Lupus Erythematosus Disease Activity Index (SLEDAI) Total Score at Week 42-6.3 Score on a scaleStandard Deviation 2.4
BI 655064 240 mgChange From Baseline in Systemic Lupus Erythematosus Disease Activity Index (SLEDAI) Total Score at Week 42-11.1 Score on a scaleStandard Deviation 5.1
PlaceboChange From Baseline in Systemic Lupus Erythematosus Disease Activity Index (SLEDAI) Total Score at Week 42-6.5 Score on a scaleStandard Deviation 6.7
Secondary

Change From Baseline in Systemic Lupus Erythematosus Disease Activity Index (SLEDAI) Total Score at Week 52

Change from baseline in Systemic Lupus Erythematosus Disease Activity Index (SLEDAI) total score at Week 52 is reported. Change from baseline at Week 52 is calculated as: value at Week 52 - value at baseline. SLEDAI assessment consists of 24 items capturing non-renal and renal symptoms. The total score captures non-renal and renal symptoms. Each of the 24 items has a score ranging from 1 to 8. A participant will get the score if the event of the item presents, while 0 if not. 8 items have the score 8, 6 items have the score 4, 7 items have the score 2, and 3 items have the score 1. The SLEDAI Total score is the sum of the scores of the 24 items, ranging from 0 (better health) to 105 (worse health).

Time frame: At baseline and at Week 52

Population: Intent to treat (ITT) set: this patient set included all patients from the treated set (TS) who had a baseline proteinuria (spot urine could be a used if the patient did not have 24 hours urine collections) and a baseline Estimated glomerular filtration rate (eGFR) value. Only subjects with non-missing results were included in the analysis.

ArmMeasureValue (MEAN)Dispersion
BI 655064 120 mgChange From Baseline in Systemic Lupus Erythematosus Disease Activity Index (SLEDAI) Total Score at Week 52-8.9 Score on a scaleStandard Deviation 6.1
BI 655064 180 mgChange From Baseline in Systemic Lupus Erythematosus Disease Activity Index (SLEDAI) Total Score at Week 52-7.2 Score on a scaleStandard Deviation 4
BI 655064 240 mgChange From Baseline in Systemic Lupus Erythematosus Disease Activity Index (SLEDAI) Total Score at Week 52-10.6 Score on a scaleStandard Deviation 4.9
PlaceboChange From Baseline in Systemic Lupus Erythematosus Disease Activity Index (SLEDAI) Total Score at Week 52-5.3 Score on a scaleStandard Deviation 8
Secondary

Percentage of Patients Experiencing at Least One Renal Flare During 52 Weeks

The percentage of patients experiencing at least one renal flare during 52 weeks is reported.

Time frame: At Week 52

Population: Intent to treat (ITT) set: this patient set included all patients from the treated set (TS) who had a baseline proteinuria (spot urine could be a used if the patient did not have 24 hours urine collections) and a baseline Estimated glomerular filtration rate (eGFR) value. Only subjects with non-missing results were included in the analysis.

ArmMeasureValue (NUMBER)
BI 655064 120 mgPercentage of Patients Experiencing at Least One Renal Flare During 52 Weeks0 Percentage of participants
BI 655064 180 mgPercentage of Patients Experiencing at Least One Renal Flare During 52 Weeks21.4 Percentage of participants
BI 655064 240 mgPercentage of Patients Experiencing at Least One Renal Flare During 52 Weeks0 Percentage of participants
PlaceboPercentage of Patients Experiencing at Least One Renal Flare During 52 Weeks16.0 Percentage of participants
p-value: 0.792180% CI: [-10.19, 23.57]Barnard test
Secondary

Percentage of Patients With Complete Renal Response (CRR) at Week 52 and Sustained Steroid Reduction to ≤5 Milligrams (mg)/Day (d) From Week 26 to Week 52

The percentage of patients with complete renal response (CRR) at Week 52 and sustained steroid reduction to ≤5 milligrams (mg)/day (d) from Week 26 to Week 52 is reported. Complete renal response (CRR) was defined as urine protein (UP) \< 0.5 g/day and either estimated glomerular filtration rate (eGFR) within normal range or decrease in eGFR \< 20% from baseline if eGFR was below normal range (below lower limit of normal \[LLN\], where LLN = 90 mL/min.

Time frame: At Week 52 (Sustained Steroid Reduction to ≤5 mg/d was evaluated from Week 26 to Week 52).

Population: Intent to treat (ITT) set: this patient set included all patients from the treated set (TS) who had a baseline proteinuria (spot urine could be a used if the patient did not have 24 hours urine collections) and a baseline Estimated glomerular filtration rate (eGFR) value. Only subjects with non-missing results were included in the analysis.

ArmMeasureValue (NUMBER)
BI 655064 120 mgPercentage of Patients With Complete Renal Response (CRR) at Week 52 and Sustained Steroid Reduction to ≤5 Milligrams (mg)/Day (d) From Week 26 to Week 5242.9 Percentage of participants
BI 655064 180 mgPercentage of Patients With Complete Renal Response (CRR) at Week 52 and Sustained Steroid Reduction to ≤5 Milligrams (mg)/Day (d) From Week 26 to Week 5242.9 Percentage of participants
BI 655064 240 mgPercentage of Patients With Complete Renal Response (CRR) at Week 52 and Sustained Steroid Reduction to ≤5 Milligrams (mg)/Day (d) From Week 26 to Week 5255.6 Percentage of participants
PlaceboPercentage of Patients With Complete Renal Response (CRR) at Week 52 and Sustained Steroid Reduction to ≤5 Milligrams (mg)/Day (d) From Week 26 to Week 5239.1 Percentage of participants
p-value: 0.911980% CI: [-20.53, 29.6]Barnard test
p-value: 0.85180% CI: [-16.58, 24.31]Barnard test
p-value: 0.349880% CI: [-3.53, 34.73]Barnard test
Secondary

Percentage of Patients With Confirmed Complete Renal Response (CRR) and Without Any Renal Flares

The percentage of patients with confirmed complete renal response (CRR) (defined as CRR at both Week 42 and Week 52 using urine protein (UP)/urine creatine (UC) ratio \[UP/UC\] from the spot urines) and without any renal flares is reported. Complete renal response (CRR) was defined as urine protein (UP) \< 0.5 g/day and either estimated glomerular filtration rate (eGFR) within normal range or decrease in eGFR \< 20% from baseline if eGFR was below normal range (below lower limit of normal \[LLN\], where LLN = 90 mL/min).

Time frame: At Week 52

Population: Intent to treat (ITT) set: this patient set included all patients from the treated set (TS) who had a baseline proteinuria (spot urine could be a used if the patient did not have 24 hours urine collections) and a baseline Estimated glomerular filtration rate (eGFR) value. Only subjects with non-missing results were included in the analysis.

ArmMeasureValue (NUMBER)
BI 655064 120 mgPercentage of Patients With Confirmed Complete Renal Response (CRR) and Without Any Renal Flares42.9 Percentage of participants
BI 655064 180 mgPercentage of Patients With Confirmed Complete Renal Response (CRR) and Without Any Renal Flares30.8 Percentage of participants
BI 655064 240 mgPercentage of Patients With Confirmed Complete Renal Response (CRR) and Without Any Renal Flares50.0 Percentage of participants
PlaceboPercentage of Patients With Confirmed Complete Renal Response (CRR) and Without Any Renal Flares52.0 Percentage of participants
p-value: 0.82580% CI: [-32.83, 17.02]Barnard test
p-value: 0.256280% CI: [-39.44, 0.51]Barnard test
p-value: 0.963280% CI: [-20.45, 16.62]Barnard test
Secondary

Percentage of Patients With Partial Renal Response (PRR) and Without Any Renal Flares Derived From Urine Protein (UP) 24 Hours (h) Collection at Week 52

The percentage of patients with partial renal response (PRR) and without any renal flares derived from urine protein (UP) 24 hours (h) collection at Week 52 is reported. Partial renal response (PRR) was defined as at least 50% reduction of proteinuria from baseline if estimated glomerular filtration rate (eGFR) was within normal range at time of assessment or decrease of eGFR \<20% from baseline if eGFR was below normal range at time of assessment.

Time frame: At Week 52

Population: Intent to treat (ITT) set: this patient set included all patients from the treated set (TS) who had a baseline proteinuria (spot urine could be a used if the patient did not have 24 hours urine collections) and a baseline Estimated glomerular filtration rate (eGFR) value. Only subjects with non-missing results were included in the analysis.

ArmMeasureValue (NUMBER)
BI 655064 120 mgPercentage of Patients With Partial Renal Response (PRR) and Without Any Renal Flares Derived From Urine Protein (UP) 24 Hours (h) Collection at Week 52100.0 Percentage of participants
BI 655064 180 mgPercentage of Patients With Partial Renal Response (PRR) and Without Any Renal Flares Derived From Urine Protein (UP) 24 Hours (h) Collection at Week 5264.3 Percentage of participants
BI 655064 240 mgPercentage of Patients With Partial Renal Response (PRR) and Without Any Renal Flares Derived From Urine Protein (UP) 24 Hours (h) Collection at Week 5275.0 Percentage of participants
PlaceboPercentage of Patients With Partial Renal Response (PRR) and Without Any Renal Flares Derived From Urine Protein (UP) 24 Hours (h) Collection at Week 5268.0 Percentage of participants
p-value: 0.101680% CI: [10.28, 44.74]Barnard test
p-value: 0.832380% CI: [-23.79, 15.29]Barnard test
p-value: 0.624780% CI: [-10.5, 23.31]Barnard test
Secondary

Percentage of Patients With Proteinuria <0.8 Grams (g)/Day (d) and Without Any Renal Flares at Week 52

The percentage of patients with proteinuria \<0.8 grams (g)/day (d) and without any renal flares at week 52 is reported.

Time frame: At Week 52

Population: Intent to treat (ITT) set: this patient set included all patients from the treated set (TS) who had a baseline proteinuria (spot urine could be a used if the patient did not have 24 hours urine collections) and a baseline Estimated glomerular filtration rate (eGFR) value. Only subjects with non-missing results were included in the analysis.

ArmMeasureValue (NUMBER)
BI 655064 120 mgPercentage of Patients With Proteinuria <0.8 Grams (g)/Day (d) and Without Any Renal Flares at Week 5257.1 Percentage of participants
BI 655064 180 mgPercentage of Patients With Proteinuria <0.8 Grams (g)/Day (d) and Without Any Renal Flares at Week 5250.0 Percentage of participants
BI 655064 240 mgPercentage of Patients With Proteinuria <0.8 Grams (g)/Day (d) and Without Any Renal Flares at Week 5260.0 Percentage of participants
PlaceboPercentage of Patients With Proteinuria <0.8 Grams (g)/Day (d) and Without Any Renal Flares at Week 5260.0 Percentage of participants
p-value: 0.927580% CI: [-28.58, 21.1]Barnard test
p-value: 0.606480% CI: [-29.9, 10.64]Barnard test
80% CI: [-18.37, 18.07]
Secondary

Time to First Renal Flare Over the Course of 52 Weeks

The time to first renal flare over the course of 52 weeks is reported.

Time frame: Up to 52 weeks.

Population: Intent to treat (ITT) set: this patient set included all patients from the treated set (TS) who had a baseline proteinuria (spot urine could be a used if the patient did not have 24 hours urine collections) and a baseline Estimated glomerular filtration rate (eGFR) value. Only subject with non-missing results were included in the analysis.

ArmMeasureValue (MEDIAN)
BI 655064 180 mgTime to First Renal Flare Over the Course of 52 Weeks36.0 Weeks
PlaceboTime to First Renal Flare Over the Course of 52 Weeks37.5 Weeks

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026