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A Long-Term Study of the Safety and Tolerability of Repeated Administration of CEP-33457 in Participants With Systemic Lupus Erythematosus

An Open-Label Long-Term Study of the Safety and Tolerability of Repeated Administration of CEP-33457 in Patients With Systemic Lupus Erythematosus

Status
Terminated
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT01240694
Enrollment
136
Registered
2010-11-15
Start date
2010-12-09
Completion date
2012-06-14
Last updated
2022-12-30

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

Conditions

Systemic Lupus Erythematosus

Keywords

Lupus, SLE

Brief summary

The primary objective of this study is to evaluate the long term safety and tolerability of repeated administration of subcutaneous (SC) CEP-33457 for injection every 4 weeks over 72 weeks (18 doses) in participants with systemic lupus erythematosus (SLE) who have participated in a previous Cephalon sponsored clinical study of CEP-33457, and completed at least Visit 8 (Week 24 of that study).

Interventions

CEP-33457 will be administered subcutaneously per dose specified in the arm description.

Sponsors

Cephalon, Inc.
Lead SponsorINDUSTRY

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

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

Inclusion criteria

* The participant has an established diagnosis of SLE as defined by ACR Classification Revised Criteria. The diagnosis is fulfilled provided that at least 4 criteria are met. * The participant previously participated in and completed at least Visit 8 (Week 24) the Cephalon sponsored clinical study with CEP-33457 (study C33457/2047) and, in the investigator's opinion, would benefit from continued participation in a clinical study. * Women must be surgically sterile, 2 years postmenopausal, or, if of childbearing potential, using a medically accepted method of contraception, and must agree to continued use of this method for the duration of the study and for 30 days after discontinuation of study drug treatment.

Exclusion criteria

* The participant has New York Heart Association (NYHA) Class III or IV congestive heart failure. * The participant has an estimated glomerular filtration rate (eGFR) of less than 30 milliliters (mL)/minute (min)/1.73 square meter (m\^2) (via Modification of Diet in Renal Disease \[MDRD\] equation). * The participant has an aspartate aminotransferase (AST) or alanine aminotransferase (ALT) value greater than 2 times the upper limit of normal (ULN) or a total bilirubin level greater than 1.5 times ULN. * The participant has a planned immunization with a live or live attenuated vaccine within 3 months prior to administration of the first dose of study drug and for 3 months after administration of the last dose of study drug. * The participant has any clinically significant abnormalities on electrocardiogram (ECG) that are not related to SLE, as determined by the investigator. Participants with stable ECG changes without evidence of active cardiovascular disease may participate at the discretion of the investigator and medical monitor. * The participant has an ongoing active systemic infection requiring treatment or a history of severe infection, such as hepatitis or pneumonia, in the 3 months prior to administration of the first dose of study drug. Less severe infections in the 3 months prior to administration of the first dose of study drug are permitted at the discretion of the investigator and medical monitor. * The participant has any concomitant medical condition unrelated to SLE that may interfere with his or her safety or with evaluation of the study drug, as determined by the investigator. * The participant has a history of a positive test result for hepatitis B surface antigen (HBsAg) or hepatitis C virus antibody (HCV Ab). * The participant has a known positive history of antibodies to human immunodeficiency virus (HIV) or HIV disease. * The participant has a history of alcohol or substance dependence or abuse (with the exception of nicotine), according to the Diagnostic and Statistical Manual of Mental Disorders of the American Psychiatric Association, Fourth Edition, Text Revision (DSM-IV-TR), within 3 months of the screening visit for study C33457/2047, or has current substance abuse. * The participant has a history of severe allergic reactions to or hypersensitivity to any component of the study drug. * The participant is a pregnant or lactating woman. (Any women becoming pregnant during the study will be withdrawn from the study.) * The participant has undergone or is undergoing treatment with another investigational drug for the treatment of lupus within 6 months prior to the 1st dose of study drug or has received any other investigational drug for any other condition within 30 days prior to the 1st dose of study drug, except for treatment with CEP-33457 or placebo in study C33457/2047. * The participant has a known history of antibodies to CEP-33457. * The participant is unlikely to comply with the study protocol or is unsuitable for any other reason, as judged by the investigator or medical monitor.

Design outcomes

Primary

MeasureTime frameDescription
Number of Participants With Adverse Events (AEs)Baseline up to Week 72An AE was defined as any untoward medical occurrence in a participant who received study drug without regard to possibility of causal relationship. AEs included clinically significant vitals, labs, and physical examination findings. Serious adverse events (SAEs) were defined as death, a life-threatening AE, inpatient hospitalization or prolongation of existing hospitalization, persistent or significant disability or incapacity, a congenital anomaly or birth defect, or an important medical event that jeopardized participant and required medical intervention to prevent 1 of the outcomes listed in this definition. A summary of other non-serious AEs and all serious AEs, regardless of causality is located in Reported AE section.
Number of Participants Who Received Concomitant MedicationsBaseline up to Week 72Any concomitant therapy or medication taken while the participant received study drug.

Secondary

MeasureTime frameDescription
Number of Participants With British Isles Lupus Assessment Group 2004 (BILAG-2004) ResponseWeek 4, 8, 12, 16, 20, 24, 28, 32, 36, 40, 44, 48, 52, 56, 60, 64, 68 and 72The BILAG-2004 is a validated objective and subjective global measure of the SLE disease activity, based on the physician's intention to treat, and refers to disease activity within the last 4 weeks before completion of the index. It includes 97 clinical and laboratory components to evaluate SLE disease activity in 9 different body systems (constitutional, mucocutaneous, neuropsychiatric, musculoskeletal, cardiorespiratory, gastrointestinal, ophthalmic, renal, and hematological). Each body system is assigned a score displayed as a grade from A to E, as follows: A=very active disease; B=participant needs increase in treatment for moderately active disease; C=stab1e or mild disease; D=previous system involvement but no current disease activity; and E=no current disease activity and the body system has never been involved. BILAG 2004 response was defined as no new BILAG A body system score and no more than 1 new BILAG B body system score from baseline.
Number of Participants Showing No Worsening on Physician's Global Assessment (PhGA) ScaleWeek 4, 8, 12, 16, 20, 24, 28, 32, 36, 40, 44, 48, 52, 56, 60, 64, 68 and 72The PhGA was completed by the physician using a 3-inch visual analog scale (VAS) labeled from 0=none to 3=severe. A change of greater than 0.3 point on the VAS indicates worsening. The number of participants showing no worsening are presented.
Number of Participants Showing No Worsening on Patient's Global Assessment (PtGA) ScaleWeek 12, 24, 36, 48, 60, and 72The PtGA was completed by the participant, using a 3-inch VAS labeled from 0=none to 3=severe. A change of greater than 0.3 point on the VAS indicated worsening. The number of participants showing no worsening are presented.
Change From Baseline in Short-Form 36 (SF-36) Domain ScoresBaseline, Week 12, 24, 36, 48, 60 and final assessment (or early termination [up to Week 72])The SF-36 questionnaire has 36 questions composing the scale that represent 8 domains: 1) physical functioning, 2) physical role functioning, 3) bodily pain, 4) general health, 5) vitality, 6) social functioning, 7) emotional role functioning, and 8) mental health. All domains are scored on a scale from 0 (worst) to 100 (best), with higher scores representing the best possible health state. Change from baseline scores in the following individual standardized domains: Bodily pain, physical functioning, social functioning and vitality were presented.
Change From Baseline in the Biomarker: Anti-U1 Ribonucleoprotein Antibody (Anti-UI RNP Ab)Baseline, Week 12, 24, 36, 48, 60 and final assessment (or early termination [up to Week 72])Anti-UI RNP Ab was measured from blood serum collected at specified time points.
Change From Baseline in the Biomarker: C-Reactive Protein (CRP)Baseline, Week 12, 24, 36, 48, 60, and Final Assessment (or Early Termination [up to Week 72])CRP was measured from blood serum samples at specified time points.
Number of Participants Achieving a Clinical Response Using the Systemic Lupus Erythematosus (SLE) Responder Index (SRI)Week 4, 8, 12, 16, 20, 24, 28, 32, 36, 40, 44, 48, 52, 56, 60, 64, 68 and 72An SRI response was defined as a reduction from baseline in SLE Disease Activity Index 2000 (SLEDAI-2K) score of ≥4 points, no worsening in Physician Global Assessment (PhGA), no new British Isles Lupus Assessment Group (BILAG) A body system score, and ≤1 new BILAG B body system score from baseline. SLEDAI 2K includes 24 weighted clinical and laboratory variables. Total score = 0 to 105. A score of 6 to 10 = moderate disease activity, and a reduction of \>3 points = improvement. PhGA was completed by physician using a visual analog scale (VAS) from 0=none to 3=severe. A change of \>0.3 points = worsening. BILAG includes 97 clinical and laboratory items. Each organ system is assigned a score displayed as a grade from A to E: A=very active disease; B=participant needs increase in treatment for moderately active disease; C=stable or mild disease; D=previous organ involvement but no current disease activity; and E=no current disease activity and organ system has never been involved.
Number of Participants With Mild to Moderate Flare, Severe Flare, and No Flare, Based on the Safety of Estrogens in Lupus Erythematosus: National Assessment (SELENA) Flare IndexWeek 4, 8, 12, 16, 20, 24, 28, 32, 36, 40, 44, 48, 52, 56, 60, 64 and Final Assessment (or Early Termination [up to Week 72])The SELENA Flare Index divides flares into 2 categories: mild/moderate and severe. A severe flare would lead to early withdrawal. The number of participants with mild to moderate flare, severe flare, and no flare at each visit during the treatment period were reported.
Change From Baseline in Total Damage Score as Assessed by the Systemic Lupus International Collaborative Clinics/American College of Rheumatology (SLICC/ACR) Damage IndexBaseline, Week 24, 48 and Final Assessment (or Early Termination [up to Week 72])The SLICC/ACR damage index assesses specific comorbidities associated with SLE. It consists of 41 items and covers 12 body systems. Total damage scores were calculated using the 41 items. The total damage score ranges from 0 (no damage) to 47 (maximum disease damage severity) with higher scores indicating increasing disease damage severity.
Number of Participants Achieving Remission of DiseaseBaseline, Weeks 4, 8, 12, 16, 20, 24, 28, 32, 36, 40, 44, 48, 52, 56, 60, 64 and Final Assessment (or Early Termination [up to Week 72])Remission of disease was defined as a reduction of SLEDAI-2K score to 0. The SLEDAI-2K is a validated objective measure that assesses disease activity within the last 28 days before completion of the index. It is a global index and includes 24 weighted clinical and laboratory variables. The total score (sum of all 24 scores) ranges from 0 to 105, with higher scores representing increased disease activity.
Number of Participants With Change in Steroid DoseFrom Baseline up to Final Assessment (or Early Termination [up to Week 72])Number of participants with change in steroid dose (prednisone equivalent/day) were reported. The change in steroid dose was evaluated to determine the number of participants taking a dose less than 7.5 mg of prednisone equivalent/day, a dose of 7.5 mg prednisone equivalent/day or more, and none per day.
Number of Participants With Reactive and Non-Reactive Anti-CEP-33457 AntibodiesWeek 24, 48 and Final Assessment (or Early Termination [up to Week 72])Immunogenicity was assessed by detection of the presence of specific anti-CEP-33457 antibodies in blood serum samples collected at the specified time points.
Number of Participants With Anti-nuclear Antibodies (ANA)Week 12, 24, 36, 48, 60, and Final Assessment (or Early Termination [up to Week 72])Anti-nuclear antibodies (ANA) were measured from blood serum samples at specified time points.
Change From Baseline in Systemic Lupus Erythematosus Disease Activity Index 2000 (SLEDAI-2K) Total ScoreBaseline, Week 4, 8, 12, 16, 20, 24, 28, 32, 36, 40, 44, 48, 52, 56, 60, 64 and Final Assessment (or Early Termination [up to Week 72])The SLEDAI-2K is a validated objective measure that assesses disease activity within the last 28 days before completion of the index. It is a global index and includes 24 weighted clinical and laboratory variables. The total score (sum of all 24 scores) ranges from 0 to 105, with higher scores representing increased disease activity.

Countries

Belgium, Czechia, France, Germany, Hungary, Poland, Portugal, Spain, Ukraine, United Kingdom, United States

Participant flow

Participants by arm

ArmCount
CEP-33457
Participants received 200 mcg of CEP-33457 SC every 4 weeks for a maximum of 17 doses (64 weeks).
136
Total136

Withdrawals & dropouts

PeriodReasonFG000
Overall StudyAdverse Event9
Overall StudyLack of Efficacy6
Overall StudyLost to Follow-up2
Overall StudyOther than specified3
Overall StudyProtocol Violation2
Overall StudyWithdrawal by Subject6
Overall StudyWithdrawn due to early study termination107

Baseline characteristics

CharacteristicCEP-33457
Age, Continuous40.6 years
STANDARD_DEVIATION 11.44
Ethnicity (NIH/OMB)
Hispanic or Latino
16 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
120 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants
Race/Ethnicity, Customized
Race
Asian
5 Participants
Race/Ethnicity, Customized
Race
Black
22 Participants
Race/Ethnicity, Customized
Race
Other
8 Participants
Race/Ethnicity, Customized
Race
White
101 Participants
Sex: Female, Male
Female
124 Participants
Sex: Female, Male
Male
12 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
0 / 136
other
Total, other adverse events
89 / 136
serious
Total, serious adverse events
11 / 136

Outcome results

Primary

Number of Participants Who Received Concomitant Medications

Any concomitant therapy or medication taken while the participant received study drug.

Time frame: Baseline up to Week 72

Population: Safety analysis set included all enrolled participants who took at least 1 dose of study drug.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
CEP-33457Number of Participants Who Received Concomitant Medications136 Participants
Primary

Number of Participants With Adverse Events (AEs)

An AE was defined as any untoward medical occurrence in a participant who received study drug without regard to possibility of causal relationship. AEs included clinically significant vitals, labs, and physical examination findings. Serious adverse events (SAEs) were defined as death, a life-threatening AE, inpatient hospitalization or prolongation of existing hospitalization, persistent or significant disability or incapacity, a congenital anomaly or birth defect, or an important medical event that jeopardized participant and required medical intervention to prevent 1 of the outcomes listed in this definition. A summary of other non-serious AEs and all serious AEs, regardless of causality is located in Reported AE section.

Time frame: Baseline up to Week 72

Population: Safety analysis set included all enrolled participants who took at least 1 dose of study drug.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
CEP-33457Number of Participants With Adverse Events (AEs)117 Participants
Secondary

Change From Baseline in Short-Form 36 (SF-36) Domain Scores

The SF-36 questionnaire has 36 questions composing the scale that represent 8 domains: 1) physical functioning, 2) physical role functioning, 3) bodily pain, 4) general health, 5) vitality, 6) social functioning, 7) emotional role functioning, and 8) mental health. All domains are scored on a scale from 0 (worst) to 100 (best), with higher scores representing the best possible health state. Change from baseline scores in the following individual standardized domains: Bodily pain, physical functioning, social functioning and vitality were presented.

Time frame: Baseline, Week 12, 24, 36, 48, 60 and final assessment (or early termination [up to Week 72])

Population: ITT analysis set included all enrolled participants who took at least 1 dose of study drug. Here, 'Overall number of participants analyzed' signifies participants evaluable for this outcome measure and 'number analyzed' signifies participants evaluable for specified category.

ArmMeasureGroupValue (MEAN)Dispersion
CEP-33457Change From Baseline in Short-Form 36 (SF-36) Domain ScoresBodily pain: Change at Week 122.8 units on a scaleStandard Deviation 16.43
CEP-33457Change From Baseline in Short-Form 36 (SF-36) Domain ScoresBodily pain: Change at Week 241.5 units on a scaleStandard Deviation 20.68
CEP-33457Change From Baseline in Short-Form 36 (SF-36) Domain ScoresBodily pain: Change at Week 365.5 units on a scaleStandard Deviation 23.09
CEP-33457Change From Baseline in Short-Form 36 (SF-36) Domain ScoresBodily pain: Change at Week 488.8 units on a scaleStandard Deviation 16.18
CEP-33457Change From Baseline in Short-Form 36 (SF-36) Domain ScoresBodily pain: Change at Week 609.0 units on a scaleStandard Deviation 28.59
CEP-33457Change From Baseline in Short-Form 36 (SF-36) Domain ScoresBodily pain: Change at Final Assessment (or Early Termination [up to Week 72])2.7 units on a scaleStandard Deviation 20.26
CEP-33457Change From Baseline in Short-Form 36 (SF-36) Domain ScoresPhysical functioning: Change at Week 121.7 units on a scaleStandard Deviation 12.28
CEP-33457Change From Baseline in Short-Form 36 (SF-36) Domain ScoresPhysical functioning: Change at Week 24-0.4 units on a scaleStandard Deviation 15.57
CEP-33457Change From Baseline in Short-Form 36 (SF-36) Domain ScoresPhysical functioning: Change at Week 36-0.5 units on a scaleStandard Deviation 17.2
CEP-33457Change From Baseline in Short-Form 36 (SF-36) Domain ScoresPhysical functioning: Change at Week 483.0 units on a scaleStandard Deviation 14.36
CEP-33457Change From Baseline in Short-Form 36 (SF-36) Domain ScoresPhysical functioning: Change at Week 604.4 units on a scaleStandard Deviation 15.45
CEP-33457Change From Baseline in Short-Form 36 (SF-36) Domain ScoresPhysical functioning: Change at Final Assessment (or Early Termination [up to Week 72])1.1 units on a scaleStandard Deviation 17.04
CEP-33457Change From Baseline in Short-Form 36 (SF-36) Domain ScoresSocial functioning: Change at Week 120.7 units on a scaleStandard Deviation 15.18
CEP-33457Change From Baseline in Short-Form 36 (SF-36) Domain ScoresSocial functioning: Change at Week 243.6 units on a scaleStandard Deviation 19.43
CEP-33457Change From Baseline in Short-Form 36 (SF-36) Domain ScoresSocial functioning: Change at Week 362.3 units on a scaleStandard Deviation 21.87
CEP-33457Change From Baseline in Short-Form 36 (SF-36) Domain ScoresSocial functioning: Change at Week 48-0.6 units on a scaleStandard Deviation 22.75
CEP-33457Change From Baseline in Short-Form 36 (SF-36) Domain ScoresSocial functioning: Change at Week 607.8 units on a scaleStandard Deviation 21.06
CEP-33457Change From Baseline in Short-Form 36 (SF-36) Domain ScoresSocial functioning: Change at Final Assessment (or Early Termination [up to Week 72])-0.1 units on a scaleStandard Deviation 20.56
CEP-33457Change From Baseline in Short-Form 36 (SF-36) Domain ScoresVitality: Change at Week 123.4 units on a scaleStandard Deviation 15.28
CEP-33457Change From Baseline in Short-Form 36 (SF-36) Domain ScoresVitality: Change at Week 242.1 units on a scaleStandard Deviation 18.04
CEP-33457Change From Baseline in Short-Form 36 (SF-36) Domain ScoresVitality: Change at Week 363.9 units on a scaleStandard Deviation 19.03
CEP-33457Change From Baseline in Short-Form 36 (SF-36) Domain ScoresVitality: Change at Week 484.7 units on a scaleStandard Deviation 17.78
CEP-33457Change From Baseline in Short-Form 36 (SF-36) Domain ScoresVitality: Change at Week 607.0 units on a scaleStandard Deviation 23.25
CEP-33457Change From Baseline in Short-Form 36 (SF-36) Domain ScoresVitality: Change at Final Assessment (or Early Termination [up to Week 72])2.6 units on a scaleStandard Deviation 15.94
Secondary

Change From Baseline in Systemic Lupus Erythematosus Disease Activity Index 2000 (SLEDAI-2K) Total Score

The SLEDAI-2K is a validated objective measure that assesses disease activity within the last 28 days before completion of the index. It is a global index and includes 24 weighted clinical and laboratory variables. The total score (sum of all 24 scores) ranges from 0 to 105, with higher scores representing increased disease activity.

Time frame: Baseline, Week 4, 8, 12, 16, 20, 24, 28, 32, 36, 40, 44, 48, 52, 56, 60, 64 and Final Assessment (or Early Termination [up to Week 72])

Population: ITT analysis set included all enrolled participants who took at least 1 dose of study drug. Here, 'number analyzed' signifies participants evaluable at specified timepoint.

ArmMeasureGroupValue (MEAN)Dispersion
CEP-33457Change From Baseline in Systemic Lupus Erythematosus Disease Activity Index 2000 (SLEDAI-2K) Total ScoreChange at Week 40-1.9 units on a scaleStandard Deviation 3.34
CEP-33457Change From Baseline in Systemic Lupus Erythematosus Disease Activity Index 2000 (SLEDAI-2K) Total ScoreChange at Week 44-2.3 units on a scaleStandard Deviation 3.84
CEP-33457Change From Baseline in Systemic Lupus Erythematosus Disease Activity Index 2000 (SLEDAI-2K) Total ScoreChange at Week 48-2.2 units on a scaleStandard Deviation 3.86
CEP-33457Change From Baseline in Systemic Lupus Erythematosus Disease Activity Index 2000 (SLEDAI-2K) Total ScoreChange at Week 52-3.0 units on a scaleStandard Deviation 3.94
CEP-33457Change From Baseline in Systemic Lupus Erythematosus Disease Activity Index 2000 (SLEDAI-2K) Total ScoreChange at Week 56-3.6 units on a scaleStandard Deviation 4.41
CEP-33457Change From Baseline in Systemic Lupus Erythematosus Disease Activity Index 2000 (SLEDAI-2K) Total ScoreChange at Week 60-2.3 units on a scaleStandard Deviation 5.52
CEP-33457Change From Baseline in Systemic Lupus Erythematosus Disease Activity Index 2000 (SLEDAI-2K) Total ScoreChange at Week 64-3.3 units on a scaleStandard Deviation 6.5
CEP-33457Change From Baseline in Systemic Lupus Erythematosus Disease Activity Index 2000 (SLEDAI-2K) Total ScoreChange at Final Assessment (or Early Termination [up to Week 72])-0.9 units on a scaleStandard Deviation 3.62
CEP-33457Change From Baseline in Systemic Lupus Erythematosus Disease Activity Index 2000 (SLEDAI-2K) Total ScoreChange at Week 4-0.4 units on a scaleStandard Deviation 2.48
CEP-33457Change From Baseline in Systemic Lupus Erythematosus Disease Activity Index 2000 (SLEDAI-2K) Total ScoreChange at Week 8-0.9 units on a scaleStandard Deviation 2.36
CEP-33457Change From Baseline in Systemic Lupus Erythematosus Disease Activity Index 2000 (SLEDAI-2K) Total ScoreChange at Week 12-0.9 units on a scaleStandard Deviation 2.71
CEP-33457Change From Baseline in Systemic Lupus Erythematosus Disease Activity Index 2000 (SLEDAI-2K) Total ScoreChange at Week 16-0.7 units on a scaleStandard Deviation 2.74
CEP-33457Change From Baseline in Systemic Lupus Erythematosus Disease Activity Index 2000 (SLEDAI-2K) Total ScoreChange at Week 20-1.3 units on a scaleStandard Deviation 3.1
CEP-33457Change From Baseline in Systemic Lupus Erythematosus Disease Activity Index 2000 (SLEDAI-2K) Total ScoreChange at Week 24-1.5 units on a scaleStandard Deviation 3.4
CEP-33457Change From Baseline in Systemic Lupus Erythematosus Disease Activity Index 2000 (SLEDAI-2K) Total ScoreChange at Week 28-2.0 units on a scaleStandard Deviation 3.8
CEP-33457Change From Baseline in Systemic Lupus Erythematosus Disease Activity Index 2000 (SLEDAI-2K) Total ScoreChange at Week 32-1.9 units on a scaleStandard Deviation 3.48
CEP-33457Change From Baseline in Systemic Lupus Erythematosus Disease Activity Index 2000 (SLEDAI-2K) Total ScoreChange at Week 36-2.1 units on a scaleStandard Deviation 3.39
Secondary

Change From Baseline in the Biomarker: Anti-U1 Ribonucleoprotein Antibody (Anti-UI RNP Ab)

Anti-UI RNP Ab was measured from blood serum collected at specified time points.

Time frame: Baseline, Week 12, 24, 36, 48, 60 and final assessment (or early termination [up to Week 72])

Population: ITT analysis set included all enrolled participants who took at least 1 dose of study drug. Here, 'Overall number of participants analyzed' signifies participants evaluable for this outcome measure and 'number analyzed' signifies participants evaluable at specified timepoint.

ArmMeasureGroupValue (MEAN)Dispersion
CEP-33457Change From Baseline in the Biomarker: Anti-U1 Ribonucleoprotein Antibody (Anti-UI RNP Ab)Change at Week 12193.0 units (U)/milliliter (mL)Standard Deviation 505.2
CEP-33457Change From Baseline in the Biomarker: Anti-U1 Ribonucleoprotein Antibody (Anti-UI RNP Ab)Change at Week 24313.6 units (U)/milliliter (mL)Standard Deviation 642.69
CEP-33457Change From Baseline in the Biomarker: Anti-U1 Ribonucleoprotein Antibody (Anti-UI RNP Ab)Change at Week 36199.2 units (U)/milliliter (mL)Standard Deviation 497.79
CEP-33457Change From Baseline in the Biomarker: Anti-U1 Ribonucleoprotein Antibody (Anti-UI RNP Ab)Change at Week 48327.7 units (U)/milliliter (mL)Standard Deviation 643.54
CEP-33457Change From Baseline in the Biomarker: Anti-U1 Ribonucleoprotein Antibody (Anti-UI RNP Ab)Change at Week 60480.1 units (U)/milliliter (mL)Standard Deviation 723.53
CEP-33457Change From Baseline in the Biomarker: Anti-U1 Ribonucleoprotein Antibody (Anti-UI RNP Ab)Change at Final Assessment (or Early Termination [up to Week 72])154.7 units (U)/milliliter (mL)Standard Deviation 470.23
Secondary

Change From Baseline in the Biomarker: C-Reactive Protein (CRP)

CRP was measured from blood serum samples at specified time points.

Time frame: Baseline, Week 12, 24, 36, 48, 60, and Final Assessment (or Early Termination [up to Week 72])

Population: ITT analysis set included all enrolled participants who took at least 1 dose of study drug. Here, 'Overall number of participants analyzed' signifies participants evaluable for this outcome measure and 'number analyzed' signifies participants evaluable at specified timepoint.

ArmMeasureGroupValue (MEAN)Dispersion
CEP-33457Change From Baseline in the Biomarker: C-Reactive Protein (CRP)Change at Week 120 milligrams (mg)/deciliter (dL)Standard Deviation 0.68
CEP-33457Change From Baseline in the Biomarker: C-Reactive Protein (CRP)Change at Week 240 milligrams (mg)/deciliter (dL)Standard Deviation 0.48
CEP-33457Change From Baseline in the Biomarker: C-Reactive Protein (CRP)Change at Week 36-0.1 milligrams (mg)/deciliter (dL)Standard Deviation 0.41
CEP-33457Change From Baseline in the Biomarker: C-Reactive Protein (CRP)Change at Week 480 milligrams (mg)/deciliter (dL)Standard Deviation 0.46
CEP-33457Change From Baseline in the Biomarker: C-Reactive Protein (CRP)Change at Week 60-0.1 milligrams (mg)/deciliter (dL)Standard Deviation 0.3
CEP-33457Change From Baseline in the Biomarker: C-Reactive Protein (CRP)Change at Final Assessment (or Early Termination [up to Week 72])0 milligrams (mg)/deciliter (dL)Standard Deviation 0.82
Secondary

Change From Baseline in Total Damage Score as Assessed by the Systemic Lupus International Collaborative Clinics/American College of Rheumatology (SLICC/ACR) Damage Index

The SLICC/ACR damage index assesses specific comorbidities associated with SLE. It consists of 41 items and covers 12 body systems. Total damage scores were calculated using the 41 items. The total damage score ranges from 0 (no damage) to 47 (maximum disease damage severity) with higher scores indicating increasing disease damage severity.

Time frame: Baseline, Week 24, 48 and Final Assessment (or Early Termination [up to Week 72])

Population: ITT analysis set included all enrolled participants who took at least 1 dose of study drug. Here, 'Overall number of participants analyzed' signifies participants evaluable for this outcome measure and 'number analyzed' signifies participants evaluable at specified timepoint.

ArmMeasureGroupValue (MEAN)Dispersion
CEP-33457Change From Baseline in Total Damage Score as Assessed by the Systemic Lupus International Collaborative Clinics/American College of Rheumatology (SLICC/ACR) Damage IndexChange at Week 240 units on a scaleStandard Deviation 0.42
CEP-33457Change From Baseline in Total Damage Score as Assessed by the Systemic Lupus International Collaborative Clinics/American College of Rheumatology (SLICC/ACR) Damage IndexChange at Week 48-0.1 units on a scaleStandard Deviation 0.48
CEP-33457Change From Baseline in Total Damage Score as Assessed by the Systemic Lupus International Collaborative Clinics/American College of Rheumatology (SLICC/ACR) Damage IndexChange at Final Assessment (or Early Termination [up to Week 72])-0.1 units on a scaleStandard Deviation 0.44
Secondary

Number of Participants Achieving a Clinical Response Using the Systemic Lupus Erythematosus (SLE) Responder Index (SRI)

An SRI response was defined as a reduction from baseline in SLE Disease Activity Index 2000 (SLEDAI-2K) score of ≥4 points, no worsening in Physician Global Assessment (PhGA), no new British Isles Lupus Assessment Group (BILAG) A body system score, and ≤1 new BILAG B body system score from baseline. SLEDAI 2K includes 24 weighted clinical and laboratory variables. Total score = 0 to 105. A score of 6 to 10 = moderate disease activity, and a reduction of \>3 points = improvement. PhGA was completed by physician using a visual analog scale (VAS) from 0=none to 3=severe. A change of \>0.3 points = worsening. BILAG includes 97 clinical and laboratory items. Each organ system is assigned a score displayed as a grade from A to E: A=very active disease; B=participant needs increase in treatment for moderately active disease; C=stable or mild disease; D=previous organ involvement but no current disease activity; and E=no current disease activity and organ system has never been involved.

Time frame: Week 4, 8, 12, 16, 20, 24, 28, 32, 36, 40, 44, 48, 52, 56, 60, 64, 68 and 72

Population: Intent-to-treat (ITT) analysis set included all enrolled participants who took at least 1 dose of study drug.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
CEP-33457Number of Participants Achieving a Clinical Response Using the Systemic Lupus Erythematosus (SLE) Responder Index (SRI)Week 410 Participants
CEP-33457Number of Participants Achieving a Clinical Response Using the Systemic Lupus Erythematosus (SLE) Responder Index (SRI)Week 818 Participants
CEP-33457Number of Participants Achieving a Clinical Response Using the Systemic Lupus Erythematosus (SLE) Responder Index (SRI)Week 1219 Participants
CEP-33457Number of Participants Achieving a Clinical Response Using the Systemic Lupus Erythematosus (SLE) Responder Index (SRI)Week 1619 Participants
CEP-33457Number of Participants Achieving a Clinical Response Using the Systemic Lupus Erythematosus (SLE) Responder Index (SRI)Week 2021 Participants
CEP-33457Number of Participants Achieving a Clinical Response Using the Systemic Lupus Erythematosus (SLE) Responder Index (SRI)Week 2418 Participants
CEP-33457Number of Participants Achieving a Clinical Response Using the Systemic Lupus Erythematosus (SLE) Responder Index (SRI)Week 2817 Participants
CEP-33457Number of Participants Achieving a Clinical Response Using the Systemic Lupus Erythematosus (SLE) Responder Index (SRI)Week 3211 Participants
CEP-33457Number of Participants Achieving a Clinical Response Using the Systemic Lupus Erythematosus (SLE) Responder Index (SRI)Week 3612 Participants
CEP-33457Number of Participants Achieving a Clinical Response Using the Systemic Lupus Erythematosus (SLE) Responder Index (SRI)Week 4010 Participants
CEP-33457Number of Participants Achieving a Clinical Response Using the Systemic Lupus Erythematosus (SLE) Responder Index (SRI)Week 446 Participants
CEP-33457Number of Participants Achieving a Clinical Response Using the Systemic Lupus Erythematosus (SLE) Responder Index (SRI)Week 485 Participants
CEP-33457Number of Participants Achieving a Clinical Response Using the Systemic Lupus Erythematosus (SLE) Responder Index (SRI)Week 525 Participants
CEP-33457Number of Participants Achieving a Clinical Response Using the Systemic Lupus Erythematosus (SLE) Responder Index (SRI)Week 566 Participants
CEP-33457Number of Participants Achieving a Clinical Response Using the Systemic Lupus Erythematosus (SLE) Responder Index (SRI)Week 602 Participants
CEP-33457Number of Participants Achieving a Clinical Response Using the Systemic Lupus Erythematosus (SLE) Responder Index (SRI)Week 641 Participants
CEP-33457Number of Participants Achieving a Clinical Response Using the Systemic Lupus Erythematosus (SLE) Responder Index (SRI)Week 680 Participants
CEP-33457Number of Participants Achieving a Clinical Response Using the Systemic Lupus Erythematosus (SLE) Responder Index (SRI)Week 720 Participants
Secondary

Number of Participants Achieving Remission of Disease

Remission of disease was defined as a reduction of SLEDAI-2K score to 0. The SLEDAI-2K is a validated objective measure that assesses disease activity within the last 28 days before completion of the index. It is a global index and includes 24 weighted clinical and laboratory variables. The total score (sum of all 24 scores) ranges from 0 to 105, with higher scores representing increased disease activity.

Time frame: Baseline, Weeks 4, 8, 12, 16, 20, 24, 28, 32, 36, 40, 44, 48, 52, 56, 60, 64 and Final Assessment (or Early Termination [up to Week 72])

Population: ITT analysis set included all enrolled participants who took at least 1 dose of study drug. Here 'number analyzed' signifies participants evaluable at specified timepoint.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
CEP-33457Number of Participants Achieving Remission of DiseaseWeek 521 Participants
CEP-33457Number of Participants Achieving Remission of DiseaseWeek 561 Participants
CEP-33457Number of Participants Achieving Remission of DiseaseWeek 48 Participants
CEP-33457Number of Participants Achieving Remission of DiseaseWeek 89 Participants
CEP-33457Number of Participants Achieving Remission of DiseaseWeek 1211 Participants
CEP-33457Number of Participants Achieving Remission of DiseaseWeek 1610 Participants
CEP-33457Number of Participants Achieving Remission of DiseaseWeek 2010 Participants
CEP-33457Number of Participants Achieving Remission of DiseaseWeek 244 Participants
CEP-33457Number of Participants Achieving Remission of DiseaseWeek 282 Participants
CEP-33457Number of Participants Achieving Remission of DiseaseWeek 321 Participants
CEP-33457Number of Participants Achieving Remission of DiseaseWeek 361 Participants
CEP-33457Number of Participants Achieving Remission of DiseaseWeek 401 Participants
CEP-33457Number of Participants Achieving Remission of DiseaseWeek 441 Participants
CEP-33457Number of Participants Achieving Remission of DiseaseWeek 481 Participants
CEP-33457Number of Participants Achieving Remission of DiseaseWeek 600 Participants
CEP-33457Number of Participants Achieving Remission of DiseaseWeek 640 Participants
CEP-33457Number of Participants Achieving Remission of DiseaseFinal Assessment (or Early Termination [up to Week 72])8 Participants
Secondary

Number of Participants Showing No Worsening on Patient's Global Assessment (PtGA) Scale

The PtGA was completed by the participant, using a 3-inch VAS labeled from 0=none to 3=severe. A change of greater than 0.3 point on the VAS indicated worsening. The number of participants showing no worsening are presented.

Time frame: Week 12, 24, 36, 48, 60, and 72

Population: ITT analysis set included all enrolled participants who took at least 1 dose of study drug.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
CEP-33457Number of Participants Showing No Worsening on Patient's Global Assessment (PtGA) ScaleWeek 1290 Participants
CEP-33457Number of Participants Showing No Worsening on Patient's Global Assessment (PtGA) ScaleWeek 2443 Participants
CEP-33457Number of Participants Showing No Worsening on Patient's Global Assessment (PtGA) ScaleWeek 3623 Participants
CEP-33457Number of Participants Showing No Worsening on Patient's Global Assessment (PtGA) ScaleWeek 4817 Participants
CEP-33457Number of Participants Showing No Worsening on Patient's Global Assessment (PtGA) ScaleWeek 606 Participants
CEP-33457Number of Participants Showing No Worsening on Patient's Global Assessment (PtGA) ScaleWeek 720 Participants
Secondary

Number of Participants Showing No Worsening on Physician's Global Assessment (PhGA) Scale

The PhGA was completed by the physician using a 3-inch visual analog scale (VAS) labeled from 0=none to 3=severe. A change of greater than 0.3 point on the VAS indicates worsening. The number of participants showing no worsening are presented.

Time frame: Week 4, 8, 12, 16, 20, 24, 28, 32, 36, 40, 44, 48, 52, 56, 60, 64, 68 and 72

Population: ITT analysis set included all enrolled participants who took at least 1 dose of study drug.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
CEP-33457Number of Participants Showing No Worsening on Physician's Global Assessment (PhGA) ScaleWeek 4113 Participants
CEP-33457Number of Participants Showing No Worsening on Physician's Global Assessment (PhGA) ScaleWeek 8111 Participants
CEP-33457Number of Participants Showing No Worsening on Physician's Global Assessment (PhGA) ScaleWeek 12105 Participants
CEP-33457Number of Participants Showing No Worsening on Physician's Global Assessment (PhGA) ScaleWeek 16100 Participants
CEP-33457Number of Participants Showing No Worsening on Physician's Global Assessment (PhGA) ScaleWeek 2076 Participants
CEP-33457Number of Participants Showing No Worsening on Physician's Global Assessment (PhGA) ScaleWeek 2448 Participants
CEP-33457Number of Participants Showing No Worsening on Physician's Global Assessment (PhGA) ScaleWeek 2841 Participants
CEP-33457Number of Participants Showing No Worsening on Physician's Global Assessment (PhGA) ScaleWeek 3234 Participants
CEP-33457Number of Participants Showing No Worsening on Physician's Global Assessment (PhGA) ScaleWeek 3628 Participants
CEP-33457Number of Participants Showing No Worsening on Physician's Global Assessment (PhGA) ScaleWeek 4025 Participants
CEP-33457Number of Participants Showing No Worsening on Physician's Global Assessment (PhGA) ScaleWeek 4420 Participants
CEP-33457Number of Participants Showing No Worsening on Physician's Global Assessment (PhGA) ScaleWeek 4819 Participants
CEP-33457Number of Participants Showing No Worsening on Physician's Global Assessment (PhGA) ScaleWeek 5215 Participants
CEP-33457Number of Participants Showing No Worsening on Physician's Global Assessment (PhGA) ScaleWeek 5610 Participants
CEP-33457Number of Participants Showing No Worsening on Physician's Global Assessment (PhGA) ScaleWeek 608 Participants
CEP-33457Number of Participants Showing No Worsening on Physician's Global Assessment (PhGA) ScaleWeek 643 Participants
CEP-33457Number of Participants Showing No Worsening on Physician's Global Assessment (PhGA) ScaleWeek 680 Participants
CEP-33457Number of Participants Showing No Worsening on Physician's Global Assessment (PhGA) ScaleWeek 720 Participants
Secondary

Number of Participants With Anti-nuclear Antibodies (ANA)

Anti-nuclear antibodies (ANA) were measured from blood serum samples at specified time points.

Time frame: Week 12, 24, 36, 48, 60, and Final Assessment (or Early Termination [up to Week 72])

Population: ITT analysis set included all enrolled participants who took at least 1 dose of study drug. Here, 'Overall number of participants analyzed' signifies participants evaluable for this outcome measure and 'number analyzed' signifies participants evaluable at specified timepoint.

ArmMeasureGroupCategoryValue (COUNT_OF_PARTICIPANTS)
CEP-33457Number of Participants With Anti-nuclear Antibodies (ANA)Week 60>=1:12801 Participants
CEP-33457Number of Participants With Anti-nuclear Antibodies (ANA)Week 601:12800 Participants
CEP-33457Number of Participants With Anti-nuclear Antibodies (ANA)Week 12None detected0 Participants
CEP-33457Number of Participants With Anti-nuclear Antibodies (ANA)Week 12<1:400 Participants
CEP-33457Number of Participants With Anti-nuclear Antibodies (ANA)Week 121:4016 Participants
CEP-33457Number of Participants With Anti-nuclear Antibodies (ANA)Week 121:8017 Participants
CEP-33457Number of Participants With Anti-nuclear Antibodies (ANA)Week 121:16020 Participants
CEP-33457Number of Participants With Anti-nuclear Antibodies (ANA)Week 121:32030 Participants
CEP-33457Number of Participants With Anti-nuclear Antibodies (ANA)Week 121:6407 Participants
CEP-33457Number of Participants With Anti-nuclear Antibodies (ANA)Week 121:12800 Participants
CEP-33457Number of Participants With Anti-nuclear Antibodies (ANA)Week 12>=1:128022 Participants
CEP-33457Number of Participants With Anti-nuclear Antibodies (ANA)Week 24None detected0 Participants
CEP-33457Number of Participants With Anti-nuclear Antibodies (ANA)Week 24<1:400 Participants
CEP-33457Number of Participants With Anti-nuclear Antibodies (ANA)Week 241:403 Participants
CEP-33457Number of Participants With Anti-nuclear Antibodies (ANA)Week 241:8011 Participants
CEP-33457Number of Participants With Anti-nuclear Antibodies (ANA)Week 241:16012 Participants
CEP-33457Number of Participants With Anti-nuclear Antibodies (ANA)Week 241:32011 Participants
CEP-33457Number of Participants With Anti-nuclear Antibodies (ANA)Week 241:6404 Participants
CEP-33457Number of Participants With Anti-nuclear Antibodies (ANA)Week 241:12800 Participants
CEP-33457Number of Participants With Anti-nuclear Antibodies (ANA)Week 24>=1:128016 Participants
CEP-33457Number of Participants With Anti-nuclear Antibodies (ANA)Week 36None detected0 Participants
CEP-33457Number of Participants With Anti-nuclear Antibodies (ANA)Week 36<1:400 Participants
CEP-33457Number of Participants With Anti-nuclear Antibodies (ANA)Week 361:405 Participants
CEP-33457Number of Participants With Anti-nuclear Antibodies (ANA)Week 361:806 Participants
CEP-33457Number of Participants With Anti-nuclear Antibodies (ANA)Week 361:1607 Participants
CEP-33457Number of Participants With Anti-nuclear Antibodies (ANA)Week 361:3204 Participants
CEP-33457Number of Participants With Anti-nuclear Antibodies (ANA)Week 361:6402 Participants
CEP-33457Number of Participants With Anti-nuclear Antibodies (ANA)Week 361:12800 Participants
CEP-33457Number of Participants With Anti-nuclear Antibodies (ANA)Week 36>=1:12806 Participants
CEP-33457Number of Participants With Anti-nuclear Antibodies (ANA)Week 48None detected0 Participants
CEP-33457Number of Participants With Anti-nuclear Antibodies (ANA)Week 48<1:400 Participants
CEP-33457Number of Participants With Anti-nuclear Antibodies (ANA)Week 481:404 Participants
CEP-33457Number of Participants With Anti-nuclear Antibodies (ANA)Week 481:804 Participants
CEP-33457Number of Participants With Anti-nuclear Antibodies (ANA)Week 481:1603 Participants
CEP-33457Number of Participants With Anti-nuclear Antibodies (ANA)Week 481:3202 Participants
CEP-33457Number of Participants With Anti-nuclear Antibodies (ANA)Week 481:6402 Participants
CEP-33457Number of Participants With Anti-nuclear Antibodies (ANA)Week 481:12800 Participants
CEP-33457Number of Participants With Anti-nuclear Antibodies (ANA)Week 48>=1:12805 Participants
CEP-33457Number of Participants With Anti-nuclear Antibodies (ANA)Week 60None detected0 Participants
CEP-33457Number of Participants With Anti-nuclear Antibodies (ANA)Week 60<1:400 Participants
CEP-33457Number of Participants With Anti-nuclear Antibodies (ANA)Week 601:401 Participants
CEP-33457Number of Participants With Anti-nuclear Antibodies (ANA)Week 601:802 Participants
CEP-33457Number of Participants With Anti-nuclear Antibodies (ANA)Week 601:1602 Participants
CEP-33457Number of Participants With Anti-nuclear Antibodies (ANA)Week 601:3201 Participants
CEP-33457Number of Participants With Anti-nuclear Antibodies (ANA)Week 601:6401 Participants
CEP-33457Number of Participants With Anti-nuclear Antibodies (ANA)Final Assessment (or Early Termination [up to Week 72])None detected0 Participants
CEP-33457Number of Participants With Anti-nuclear Antibodies (ANA)Final Assessment (or Early Termination [up to Week 72])<1:400 Participants
CEP-33457Number of Participants With Anti-nuclear Antibodies (ANA)Final Assessment (or Early Termination [up to Week 72])1:4016 Participants
CEP-33457Number of Participants With Anti-nuclear Antibodies (ANA)Final Assessment (or Early Termination [up to Week 72])1:8016 Participants
CEP-33457Number of Participants With Anti-nuclear Antibodies (ANA)Final Assessment (or Early Termination [up to Week 72])1:16018 Participants
CEP-33457Number of Participants With Anti-nuclear Antibodies (ANA)Final Assessment (or Early Termination [up to Week 72])1:32028 Participants
CEP-33457Number of Participants With Anti-nuclear Antibodies (ANA)Final Assessment (or Early Termination [up to Week 72])1:64018 Participants
CEP-33457Number of Participants With Anti-nuclear Antibodies (ANA)Final Assessment (or Early Termination [up to Week 72])1:12800 Participants
CEP-33457Number of Participants With Anti-nuclear Antibodies (ANA)Final Assessment (or Early Termination [up to Week 72])>=1:128030 Participants
Secondary

Number of Participants With British Isles Lupus Assessment Group 2004 (BILAG-2004) Response

The BILAG-2004 is a validated objective and subjective global measure of the SLE disease activity, based on the physician's intention to treat, and refers to disease activity within the last 4 weeks before completion of the index. It includes 97 clinical and laboratory components to evaluate SLE disease activity in 9 different body systems (constitutional, mucocutaneous, neuropsychiatric, musculoskeletal, cardiorespiratory, gastrointestinal, ophthalmic, renal, and hematological). Each body system is assigned a score displayed as a grade from A to E, as follows: A=very active disease; B=participant needs increase in treatment for moderately active disease; C=stab1e or mild disease; D=previous system involvement but no current disease activity; and E=no current disease activity and the body system has never been involved. BILAG 2004 response was defined as no new BILAG A body system score and no more than 1 new BILAG B body system score from baseline.

Time frame: Week 4, 8, 12, 16, 20, 24, 28, 32, 36, 40, 44, 48, 52, 56, 60, 64, 68 and 72

Population: ITT analysis set included all enrolled participants who took at least 1 dose of study drug.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
CEP-33457Number of Participants With British Isles Lupus Assessment Group 2004 (BILAG-2004) ResponseWeek 4126 Participants
CEP-33457Number of Participants With British Isles Lupus Assessment Group 2004 (BILAG-2004) ResponseWeek 8118 Participants
CEP-33457Number of Participants With British Isles Lupus Assessment Group 2004 (BILAG-2004) ResponseWeek 12111 Participants
CEP-33457Number of Participants With British Isles Lupus Assessment Group 2004 (BILAG-2004) ResponseWeek 16110 Participants
CEP-33457Number of Participants With British Isles Lupus Assessment Group 2004 (BILAG-2004) ResponseWeek 2088 Participants
CEP-33457Number of Participants With British Isles Lupus Assessment Group 2004 (BILAG-2004) ResponseWeek 2456 Participants
CEP-33457Number of Participants With British Isles Lupus Assessment Group 2004 (BILAG-2004) ResponseWeek 2847 Participants
CEP-33457Number of Participants With British Isles Lupus Assessment Group 2004 (BILAG-2004) ResponseWeek 3234 Participants
CEP-33457Number of Participants With British Isles Lupus Assessment Group 2004 (BILAG-2004) ResponseWeek 3630 Participants
CEP-33457Number of Participants With British Isles Lupus Assessment Group 2004 (BILAG-2004) ResponseWeek 4028 Participants
CEP-33457Number of Participants With British Isles Lupus Assessment Group 2004 (BILAG-2004) ResponseWeek 4422 Participants
CEP-33457Number of Participants With British Isles Lupus Assessment Group 2004 (BILAG-2004) ResponseWeek 4819 Participants
CEP-33457Number of Participants With British Isles Lupus Assessment Group 2004 (BILAG-2004) ResponseWeek 5215 Participants
CEP-33457Number of Participants With British Isles Lupus Assessment Group 2004 (BILAG-2004) ResponseWeek 5612 Participants
CEP-33457Number of Participants With British Isles Lupus Assessment Group 2004 (BILAG-2004) ResponseWeek 607 Participants
CEP-33457Number of Participants With British Isles Lupus Assessment Group 2004 (BILAG-2004) ResponseWeek 643 Participants
CEP-33457Number of Participants With British Isles Lupus Assessment Group 2004 (BILAG-2004) ResponseWeek 680 Participants
CEP-33457Number of Participants With British Isles Lupus Assessment Group 2004 (BILAG-2004) ResponseWeek 720 Participants
Secondary

Number of Participants With Change in Steroid Dose

Number of participants with change in steroid dose (prednisone equivalent/day) were reported. The change in steroid dose was evaluated to determine the number of participants taking a dose less than 7.5 mg of prednisone equivalent/day, a dose of 7.5 mg prednisone equivalent/day or more, and none per day.

Time frame: From Baseline up to Final Assessment (or Early Termination [up to Week 72])

Population: ITT analysis set included all enrolled participants who took at least 1 dose of study drug.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
CEP-33457Number of Participants With Change in Steroid Dose<7.5 mg at Baseline to <7.5 mg at Final Assessment37 Participants
CEP-33457Number of Participants With Change in Steroid Dose<7.5 mg at Baseline to >=7.5 mg at Final Assessment1 Participants
CEP-33457Number of Participants With Change in Steroid Dose<7.5 mg at Baseline to None at Final Assessment0 Participants
CEP-33457Number of Participants With Change in Steroid Dose>=7.5 mg at Baseline to <7.5 mg at Final Assessment5 Participants
CEP-33457Number of Participants With Change in Steroid Dose>=7.5 mg at Baseline to >=7.5 mg at Final Assessment49 Participants
CEP-33457Number of Participants With Change in Steroid Dose>=7.5 mg at Baseline to None at Final Assessment3 Participants
CEP-33457Number of Participants With Change in Steroid DoseNone at Baseline to <7.5 mg at Final Assessment3 Participants
CEP-33457Number of Participants With Change in Steroid DoseNone at Baseline to >=7.5 mg at Final Assessment2 Participants
CEP-33457Number of Participants With Change in Steroid DoseNone at Baseline to None at Final Assessment36 Participants
Secondary

Number of Participants With Mild to Moderate Flare, Severe Flare, and No Flare, Based on the Safety of Estrogens in Lupus Erythematosus: National Assessment (SELENA) Flare Index

The SELENA Flare Index divides flares into 2 categories: mild/moderate and severe. A severe flare would lead to early withdrawal. The number of participants with mild to moderate flare, severe flare, and no flare at each visit during the treatment period were reported.

Time frame: Week 4, 8, 12, 16, 20, 24, 28, 32, 36, 40, 44, 48, 52, 56, 60, 64 and Final Assessment (or Early Termination [up to Week 72])

Population: ITT analysis set included all enrolled participants who took at least 1 dose of study drug. Here, 'Overall number of participants analyzed' signifies participants evaluable for this outcome measure and 'number analyzed' signifies participants evaluable at specified timepoint.

ArmMeasureGroupCategoryValue (COUNT_OF_PARTICIPANTS)
CEP-33457Number of Participants With Mild to Moderate Flare, Severe Flare, and No Flare, Based on the Safety of Estrogens in Lupus Erythematosus: National Assessment (SELENA) Flare IndexWeek 4Mild/moderate flare15 Participants
CEP-33457Number of Participants With Mild to Moderate Flare, Severe Flare, and No Flare, Based on the Safety of Estrogens in Lupus Erythematosus: National Assessment (SELENA) Flare IndexWeek 4Severe flare1 Participants
CEP-33457Number of Participants With Mild to Moderate Flare, Severe Flare, and No Flare, Based on the Safety of Estrogens in Lupus Erythematosus: National Assessment (SELENA) Flare IndexWeek 4No flare114 Participants
CEP-33457Number of Participants With Mild to Moderate Flare, Severe Flare, and No Flare, Based on the Safety of Estrogens in Lupus Erythematosus: National Assessment (SELENA) Flare IndexWeek 8Mild/moderate flare13 Participants
CEP-33457Number of Participants With Mild to Moderate Flare, Severe Flare, and No Flare, Based on the Safety of Estrogens in Lupus Erythematosus: National Assessment (SELENA) Flare IndexWeek 8Severe flare0 Participants
CEP-33457Number of Participants With Mild to Moderate Flare, Severe Flare, and No Flare, Based on the Safety of Estrogens in Lupus Erythematosus: National Assessment (SELENA) Flare IndexWeek 8No flare109 Participants
CEP-33457Number of Participants With Mild to Moderate Flare, Severe Flare, and No Flare, Based on the Safety of Estrogens in Lupus Erythematosus: National Assessment (SELENA) Flare IndexWeek 12Mild/moderate flare21 Participants
CEP-33457Number of Participants With Mild to Moderate Flare, Severe Flare, and No Flare, Based on the Safety of Estrogens in Lupus Erythematosus: National Assessment (SELENA) Flare IndexWeek 12Severe flare0 Participants
CEP-33457Number of Participants With Mild to Moderate Flare, Severe Flare, and No Flare, Based on the Safety of Estrogens in Lupus Erythematosus: National Assessment (SELENA) Flare IndexWeek 12No flare97 Participants
CEP-33457Number of Participants With Mild to Moderate Flare, Severe Flare, and No Flare, Based on the Safety of Estrogens in Lupus Erythematosus: National Assessment (SELENA) Flare IndexWeek 16Mild/moderate flare14 Participants
CEP-33457Number of Participants With Mild to Moderate Flare, Severe Flare, and No Flare, Based on the Safety of Estrogens in Lupus Erythematosus: National Assessment (SELENA) Flare IndexWeek 16Severe flare0 Participants
CEP-33457Number of Participants With Mild to Moderate Flare, Severe Flare, and No Flare, Based on the Safety of Estrogens in Lupus Erythematosus: National Assessment (SELENA) Flare IndexWeek 16No flare99 Participants
CEP-33457Number of Participants With Mild to Moderate Flare, Severe Flare, and No Flare, Based on the Safety of Estrogens in Lupus Erythematosus: National Assessment (SELENA) Flare IndexWeek 20Mild/moderate flare9 Participants
CEP-33457Number of Participants With Mild to Moderate Flare, Severe Flare, and No Flare, Based on the Safety of Estrogens in Lupus Erythematosus: National Assessment (SELENA) Flare IndexWeek 20Severe flare0 Participants
CEP-33457Number of Participants With Mild to Moderate Flare, Severe Flare, and No Flare, Based on the Safety of Estrogens in Lupus Erythematosus: National Assessment (SELENA) Flare IndexWeek 20No flare82 Participants
CEP-33457Number of Participants With Mild to Moderate Flare, Severe Flare, and No Flare, Based on the Safety of Estrogens in Lupus Erythematosus: National Assessment (SELENA) Flare IndexWeek 24Mild/moderate flare8 Participants
CEP-33457Number of Participants With Mild to Moderate Flare, Severe Flare, and No Flare, Based on the Safety of Estrogens in Lupus Erythematosus: National Assessment (SELENA) Flare IndexWeek 24Severe flare0 Participants
CEP-33457Number of Participants With Mild to Moderate Flare, Severe Flare, and No Flare, Based on the Safety of Estrogens in Lupus Erythematosus: National Assessment (SELENA) Flare IndexWeek 24No flare51 Participants
CEP-33457Number of Participants With Mild to Moderate Flare, Severe Flare, and No Flare, Based on the Safety of Estrogens in Lupus Erythematosus: National Assessment (SELENA) Flare IndexWeek 28Mild/moderate flare8 Participants
CEP-33457Number of Participants With Mild to Moderate Flare, Severe Flare, and No Flare, Based on the Safety of Estrogens in Lupus Erythematosus: National Assessment (SELENA) Flare IndexWeek 28Severe flare0 Participants
CEP-33457Number of Participants With Mild to Moderate Flare, Severe Flare, and No Flare, Based on the Safety of Estrogens in Lupus Erythematosus: National Assessment (SELENA) Flare IndexWeek 28No flare39 Participants
CEP-33457Number of Participants With Mild to Moderate Flare, Severe Flare, and No Flare, Based on the Safety of Estrogens in Lupus Erythematosus: National Assessment (SELENA) Flare IndexWeek 32Mild/moderate flare5 Participants
CEP-33457Number of Participants With Mild to Moderate Flare, Severe Flare, and No Flare, Based on the Safety of Estrogens in Lupus Erythematosus: National Assessment (SELENA) Flare IndexWeek 32Severe flare0 Participants
CEP-33457Number of Participants With Mild to Moderate Flare, Severe Flare, and No Flare, Based on the Safety of Estrogens in Lupus Erythematosus: National Assessment (SELENA) Flare IndexWeek 32No flare32 Participants
CEP-33457Number of Participants With Mild to Moderate Flare, Severe Flare, and No Flare, Based on the Safety of Estrogens in Lupus Erythematosus: National Assessment (SELENA) Flare IndexWeek 36Mild/moderate flare4 Participants
CEP-33457Number of Participants With Mild to Moderate Flare, Severe Flare, and No Flare, Based on the Safety of Estrogens in Lupus Erythematosus: National Assessment (SELENA) Flare IndexWeek 36Severe flare0 Participants
CEP-33457Number of Participants With Mild to Moderate Flare, Severe Flare, and No Flare, Based on the Safety of Estrogens in Lupus Erythematosus: National Assessment (SELENA) Flare IndexWeek 36No flare28 Participants
CEP-33457Number of Participants With Mild to Moderate Flare, Severe Flare, and No Flare, Based on the Safety of Estrogens in Lupus Erythematosus: National Assessment (SELENA) Flare IndexWeek 40Mild/moderate flare4 Participants
CEP-33457Number of Participants With Mild to Moderate Flare, Severe Flare, and No Flare, Based on the Safety of Estrogens in Lupus Erythematosus: National Assessment (SELENA) Flare IndexWeek 40Severe flare0 Participants
CEP-33457Number of Participants With Mild to Moderate Flare, Severe Flare, and No Flare, Based on the Safety of Estrogens in Lupus Erythematosus: National Assessment (SELENA) Flare IndexWeek 40No flare25 Participants
CEP-33457Number of Participants With Mild to Moderate Flare, Severe Flare, and No Flare, Based on the Safety of Estrogens in Lupus Erythematosus: National Assessment (SELENA) Flare IndexWeek 44Mild/moderate flare4 Participants
CEP-33457Number of Participants With Mild to Moderate Flare, Severe Flare, and No Flare, Based on the Safety of Estrogens in Lupus Erythematosus: National Assessment (SELENA) Flare IndexWeek 44Severe flare0 Participants
CEP-33457Number of Participants With Mild to Moderate Flare, Severe Flare, and No Flare, Based on the Safety of Estrogens in Lupus Erythematosus: National Assessment (SELENA) Flare IndexWeek 44No flare21 Participants
CEP-33457Number of Participants With Mild to Moderate Flare, Severe Flare, and No Flare, Based on the Safety of Estrogens in Lupus Erythematosus: National Assessment (SELENA) Flare IndexWeek 48Mild/moderate flare2 Participants
CEP-33457Number of Participants With Mild to Moderate Flare, Severe Flare, and No Flare, Based on the Safety of Estrogens in Lupus Erythematosus: National Assessment (SELENA) Flare IndexWeek 48Severe flare0 Participants
CEP-33457Number of Participants With Mild to Moderate Flare, Severe Flare, and No Flare, Based on the Safety of Estrogens in Lupus Erythematosus: National Assessment (SELENA) Flare IndexWeek 48No flare19 Participants
CEP-33457Number of Participants With Mild to Moderate Flare, Severe Flare, and No Flare, Based on the Safety of Estrogens in Lupus Erythematosus: National Assessment (SELENA) Flare IndexWeek 52Mild/moderate flare2 Participants
CEP-33457Number of Participants With Mild to Moderate Flare, Severe Flare, and No Flare, Based on the Safety of Estrogens in Lupus Erythematosus: National Assessment (SELENA) Flare IndexWeek 52Severe flare0 Participants
CEP-33457Number of Participants With Mild to Moderate Flare, Severe Flare, and No Flare, Based on the Safety of Estrogens in Lupus Erythematosus: National Assessment (SELENA) Flare IndexWeek 52No flare15 Participants
CEP-33457Number of Participants With Mild to Moderate Flare, Severe Flare, and No Flare, Based on the Safety of Estrogens in Lupus Erythematosus: National Assessment (SELENA) Flare IndexWeek 56Mild/moderate flare3 Participants
CEP-33457Number of Participants With Mild to Moderate Flare, Severe Flare, and No Flare, Based on the Safety of Estrogens in Lupus Erythematosus: National Assessment (SELENA) Flare IndexWeek 56Severe flare0 Participants
CEP-33457Number of Participants With Mild to Moderate Flare, Severe Flare, and No Flare, Based on the Safety of Estrogens in Lupus Erythematosus: National Assessment (SELENA) Flare IndexWeek 56No flare10 Participants
CEP-33457Number of Participants With Mild to Moderate Flare, Severe Flare, and No Flare, Based on the Safety of Estrogens in Lupus Erythematosus: National Assessment (SELENA) Flare IndexWeek 60Mild/moderate flare2 Participants
CEP-33457Number of Participants With Mild to Moderate Flare, Severe Flare, and No Flare, Based on the Safety of Estrogens in Lupus Erythematosus: National Assessment (SELENA) Flare IndexWeek 60Severe flare0 Participants
CEP-33457Number of Participants With Mild to Moderate Flare, Severe Flare, and No Flare, Based on the Safety of Estrogens in Lupus Erythematosus: National Assessment (SELENA) Flare IndexWeek 60No flare6 Participants
CEP-33457Number of Participants With Mild to Moderate Flare, Severe Flare, and No Flare, Based on the Safety of Estrogens in Lupus Erythematosus: National Assessment (SELENA) Flare IndexWeek 64Mild/moderate flare1 Participants
CEP-33457Number of Participants With Mild to Moderate Flare, Severe Flare, and No Flare, Based on the Safety of Estrogens in Lupus Erythematosus: National Assessment (SELENA) Flare IndexWeek 64Severe flare0 Participants
CEP-33457Number of Participants With Mild to Moderate Flare, Severe Flare, and No Flare, Based on the Safety of Estrogens in Lupus Erythematosus: National Assessment (SELENA) Flare IndexWeek 64No flare3 Participants
CEP-33457Number of Participants With Mild to Moderate Flare, Severe Flare, and No Flare, Based on the Safety of Estrogens in Lupus Erythematosus: National Assessment (SELENA) Flare IndexFinal Assessment (or Early Termination [up to Week 72])Mild/moderate flare24 Participants
CEP-33457Number of Participants With Mild to Moderate Flare, Severe Flare, and No Flare, Based on the Safety of Estrogens in Lupus Erythematosus: National Assessment (SELENA) Flare IndexFinal Assessment (or Early Termination [up to Week 72])Severe flare4 Participants
CEP-33457Number of Participants With Mild to Moderate Flare, Severe Flare, and No Flare, Based on the Safety of Estrogens in Lupus Erythematosus: National Assessment (SELENA) Flare IndexFinal Assessment (or Early Termination [up to Week 72])No flare107 Participants
Secondary

Number of Participants With Reactive and Non-Reactive Anti-CEP-33457 Antibodies

Immunogenicity was assessed by detection of the presence of specific anti-CEP-33457 antibodies in blood serum samples collected at the specified time points.

Time frame: Week 24, 48 and Final Assessment (or Early Termination [up to Week 72])

Population: ITT analysis set included all enrolled participants who took at least 1 dose of study drug. Here, 'Overall number of participants analyzed' signifies participants evaluable for this outcome measure and 'number analyzed' signifies participants evaluable at specified timepoint.

ArmMeasureGroupCategoryValue (COUNT_OF_PARTICIPANTS)
CEP-33457Number of Participants With Reactive and Non-Reactive Anti-CEP-33457 AntibodiesWeek 24Reactive4 Participants
CEP-33457Number of Participants With Reactive and Non-Reactive Anti-CEP-33457 AntibodiesWeek 24Non-reactive53 Participants
CEP-33457Number of Participants With Reactive and Non-Reactive Anti-CEP-33457 AntibodiesWeek 48Reactive1 Participants
CEP-33457Number of Participants With Reactive and Non-Reactive Anti-CEP-33457 AntibodiesWeek 48Non-reactive21 Participants
CEP-33457Number of Participants With Reactive and Non-Reactive Anti-CEP-33457 AntibodiesFinal Assessment (or Early Termination [up to Week 72])Reactive7 Participants
CEP-33457Number of Participants With Reactive and Non-Reactive Anti-CEP-33457 AntibodiesFinal Assessment (or Early Termination [up to Week 72])Non-reactive119 Participants

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