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Phase IIb Study of IFN-K in Systemic Lupus Erythematosus

A Phase IIb, Randomized, Double-Blind, Placebo-Controlled Study to Evaluate the Neutralization of the Interferon Gene Signature and the Clinical Efficacy of IFNα-Kinoid in Adult Subjects With Systemic Lupus Erythematosus

Status
Terminated
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02665364
Enrollment
185
Registered
2016-01-27
Start date
2015-09-23
Completion date
2020-02-04
Last updated
2020-04-09

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

Conditions

Systemic Lupus Erythematosus

Brief summary

The safety and immunogenicity of the IFNα-Kinoid (IFN-K) have been evaluated in a phase I clinical study conducted in subjects with Systemic Lupus Erythematosus (SLE). Preliminary results showed acceptable safety profile and patients developped antibodies response. The principal aim of the present study is to confirm the neutralization of the interferon gene signature and the clinical efficacy of IFN-K in subjects with SLE. In addition, the immune responses and the safety elicited by IFN-K will also be evaluated.

Interventions

BIOLOGICALIFNα-Kinoid
OTHERPlacebo
OTHERISA 51 VG

Sponsors

Neovacs
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
18 Years to 65 Years
Healthy volunteers
No

Inclusion criteria

* Has had a diagnosis of SLE according to current American College of Rheumatology (ACR) criteria (4 of 11 ACR criteria) * Has SLEDAI-2K ≥ 6 * Has at least 1 BILAG A and/or at least 2 BILAG B * Has a positive IFN gene signature by reverse transcription quantitative polymerase chain reaction (RT-qPCR) * Has anti-nuclear antibodies (ANA) ≥ 1:160 and/or anti-dsDNA antibodies ≥ 7.0 IU/mL * Currently receiving at least one treatment for SLE

Exclusion criteria

* Has active, severe lupus nephritis as defined either by the immediate need for cyclophosphamide treatment or by renal BILAG A * Has active, severe, neuropsychiatric SLE, defined as neuropsychiatric BILAG A * Has been treated with corticosteroids (CS) at a dose of \>20 mg of prednisone equivalent/day for \> 7 consecutive days * Is currently receiving or has received pulse dose CS (≥ 250 mg prednisone equivalent/day) * Has received potent immunosuppressive drugs * Has received abatacept, sifalimumab, rontalizumab, anifrolumab, belimumab, tumor necrosis factor (TNF) antagonists or another registered or investigational biological therapy * Has received anti-B-cell therapy (e.g., rituximab, epratuzumab) * Has frequent recurrences of oral or genital herpes simplex lesions * Is at high risk of significant infection and/or has any current signs or symptoms of infection at entry or has received intravenous antibiotics * Has received any live vaccine * Has used any investigational or non-registered product or any investigational or non-registered vaccine * Is high-risk human papilloma virus (HPV) positive by rRT-qPCR on a cervical swab * Has cytological abnormalities ≥ high grade squamous intraepithelial lesions (HSIL) on a cervical swab

Design outcomes

Primary

MeasureTime frameDescription
Number of Participants Who Achieved a British Isles Lupus Assessment Group-based Composite Lupus Assessment (BICLA) With Superimposed CS Tapering at Week 36At Week 36British Isles Lupus Assessment Group-based Composite Lupus Assessment (BICLA) responder was defined as a subject who had the following criteria at week 36: * All BILAG A scores at baseline improve to B/C/D and all BILAG B scores improve to C/D at W36, and * No BILAG worsening in other body systems: no new BILAG A or ≥ 2 new BILAG B scores at W36, and * No worsening in SLEDAI-2K total score at W36 compared with baseline, and * No deterioration in Physician Global Assessment (PGA) (\< 10% worsening) on Visual Analog Scale (VAS) 100 mm at W36 compared with baseline, and * No addition or increased dose level of anti-malarial drugs or immunosuppressive drugs or CS\* between W24 and W36 (\*≤5 mg prednisolone or equivalent /day at W24 and no increase until W36).
Percent Change From Baseline in IFN Gene Signature at W36Baseline and Last Available Value (LVA) between week 24 and week 36The biological endpoint aimed at evaluating the neutralization of the IFN gene signature following treatment with IFN-K compared to placebo, as measured by the % change from baseline of the expression of IFN-induced genes.

Secondary

MeasureTime frameDescription
Number of Participants Who Achieved a Lupus Low Disease Activity State (LLDAS) at Week 36At Week 36Lupus low disease activity state (LLDAS) was conceptually defined as 'a state which, if sustained, is associated with a low likelihood of adverse outcome, considering disease activity and medication safety'. Subsequently defined using consensus methodology, LLDAS is attained if all the following items are met: * SLEDAI-2K ≤4, with no activity in major organ systems (renal, central nervous system (CNS), cardiopulmonary, vasculitis, fever) and no hemolytic anemia or gastrointestinal activity * No new features of lupus disease activity compared with the previous assessment * SELENA-SLEDAI physician global assessment (PGA, scale 0-3) ≤1 * Current prednisolone (or equivalent) dose ≤7.5 mg daily * Well tolerated standard maintenance doses of immunosuppressive drugs and approved biological agents, excluding investigational drugs
BILAG Global Score Change From Baseline to Last Available Value (LVA) Between Week 24 and Week 36Last Available Value (LVA) between week 24 and week 36British Isles Lupus Assessment Group (BILAG)-2004 index, it categorizes disease activity into 5 different levels from A to E, with Grade A representing very active disease and Grade E indicating no current or previous disease activity. Scoring was based on a total of 101 items, grouped into 9 organ/systems and the summation of the numerical values for the nine-system scores was given by the following formula: Numerical global score = A\*12 + B\*8 + C\*1, where A, B and C represent the number of Grades A, B and C respectively at each assessment. Grades D and E are considered as 0 (Chee-Seng Yee et al, 2010). The minimum score is 0 with no predefined maximum. The higher scores mean a worse outcome. The BILAG global score change from baseline to Last Available Value (LVA) week 24 and week 36 were presented analyzed.
SELENA-SLEDAI - Change From Baseline to Week 36Baseline and Week 36Safety of Estrogens in Systemic Lupus Erythematosus National Assessment (SELENA)-SLEDAI, is a slightly modified version of the SLEDAI. This is a weighted index in which signs and symptoms, laboratory tests, and Physician's Global Assessment (PGA) for each of nine organ systems are given a weighted score and summed up if present at the time of the visit or in the preceding 10 days. The maximum theoretical score for the SELENA SLEDAI is 105 (all 24 descriptors present simultaneously) with 0 indicating inactive disease.
SLICC/ACR-DI Change From Baseline at Week 36Baseline and Week 36Systemic Lupus International Collaborating Clinics/American College of Rheumatology Damage Index for systemic lupus erythematosus (SLICC/ACR-DI) captures permanent changes which have occurred in patients with SLE, regardless of causality. The questionnaire contains 41 items covering 12 different organ systems. The score of items ranges from 1 to 3 and the total score from 0 to 47. By definition score 0 corresponds to diagnostics and damage over time can only be stable or increase, theoretically to a maximum of 47 points.
Number of Participants Who Achieved a Composite SRI-4 Including CS ≤7,5mg/Day at Week 36At Week 36SRI (4) plus CS ≤ 7.5 mg/day responder was defined as a participant who had the following criteria at week 36: * reduction ≥4 points in SELENA-SLEDAI at week 36 compared with baseline, and * no new BILAG A at week 36, and * no more than 1 new BILAG B at week 36, and * no deterioration in PGA (\<10% worsening) on 100-mm VAS compared with baseline plus CS ≤7.5mg equivalent prednisolone per day at week 36
Number of Participants Who Achieved a Composite SRI-4 Including CS ≤5mg/Day at Week 36At Week 36SRI-4 plus CS ≤ 5mg/day responder was defined as a participant who had the following criteria at Week 36: * reduction ≥4 points in SELENA-SLEDAI at week 36 compared with baseline, and * no new BILAG A at week 36, and * no more than 1 new BILAG B at week 36, and * no deterioration in PGA (\<10% worsening) on 100-mm VAS compared with baseline plus corticosteroids (CS) ≤5mg equivalent prednisolone per day at week 36
Number of Participants With Neutralizing Anti-IFN-alpha Antibodies at W36At week 36Individual serum antibody neutralizing capacity against recombinant IFN-alpha2b was measured by reporter gene assay using Interferon Sensitive Response Element (ISRE) reporter.
Number of Participants With Treatment-related Adverse Events9 monthsNumber of participants who reported any treatment-related adverse events until month 9
CLASI Total Activity Change From Baseline at Week 36Baseline and Week 36Cutaneous Lupus Erythematosus Disease Area and Severity Index (CLASI) was specifically developed to assess the cutaneous manifestations of SLE. It measures both disease activity and permanent damage (e.g. dyspigmentation and scarring) over the entire body surface. CLASI total activity score ranges from 0 to 70, with higher scores indicating more severe skin disease.
Number of Participants Who Achieved a Systematic Lupus Erythematosus (SLE) Responder Index (SRI)-4 at Week 36W36 (9 months)SLE Responder Index (SRI); SRI-4 responder was defined as a subject who had the following criteria at week 36: * reduction ≥4 points in SELENA-SLEDAI at week 36 compared with baseline, and * no new BILAG A at week 36, and * no more than 1 new BILAG B at week 36, and * no deterioration in PGA (\<10% worsening) on 100-mm VAS compared with baseline

Other

MeasureTime frameDescription
CS Mean Daily Dose at W36At W36mean daily dose of corticosteroid (CS) (prednisone equivalent)

Countries

Argentina, Belgium, Chile, Colombia, Croatia, France, Georgia, Germany, Italy, Mexico, Moldova, Peru, Philippines, Poland, Russia, South Korea, Switzerland, Taiwan, Thailand, Tunisia, United States

Participant flow

Pre-assignment details

The number of participants enrolled is the number of participants who signed informed condent form. One subject was randomized in IFN-K group and did not receive IFN-K. A total of 185 subjects were randomized and 184 subjects were treated : 91 subjects received IFN-K and 93 subjects received placebo.

Participants by arm

ArmCount
IFN-Kinoid
IFN-K adjuvanted with ISA 51 VG
91
Placebo
Placebo adjuvanted with ISA 51 VG
93
Total184

Baseline characteristics

CharacteristicPlaceboTotalIFN-Kinoid
Age, Categorical
<=18 years
0 Participants0 Participants0 Participants
Age, Categorical
>=65 years
0 Participants0 Participants0 Participants
Age, Categorical
Between 18 and 65 years
93 Participants184 Participants91 Participants
Race/Ethnicity, Customized
Eyhnic origin
Asian
10 Participants26 Participants16 Participants
Race/Ethnicity, Customized
Eyhnic origin
Black
1 Participants2 Participants1 Participants
Race/Ethnicity, Customized
Eyhnic origin
Caucasian/Hispanic
72 Participants140 Participants68 Participants
Race/Ethnicity, Customized
Eyhnic origin
Other
10 Participants16 Participants6 Participants
Region of Enrollment
Argentina
1 participants1 participants0 participants
Region of Enrollment
Belgium
0 participants1 participants1 participants
Region of Enrollment
Chile
4 participants6 participants2 participants
Region of Enrollment
Colombia
9 participants18 participants9 participants
Region of Enrollment
Croatia
1 participants2 participants1 participants
Region of Enrollment
France
0 participants1 participants1 participants
Region of Enrollment
Georgia
3 participants5 participants2 participants
Region of Enrollment
Germany
2 participants4 participants2 participants
Region of Enrollment
Italy
3 participants6 participants3 participants
Region of Enrollment
Mexico
9 participants19 participants10 participants
Region of Enrollment
Moldova
14 participants20 participants6 participants
Region of Enrollment
Peru
11 participants21 participants10 participants
Region of Enrollment
Philippines
9 participants19 participants10 participants
Region of Enrollment
Poland
5 participants18 participants13 participants
Region of Enrollment
Russia
13 participants22 participants9 participants
Region of Enrollment
South Korea
0 participants1 participants1 participants
Region of Enrollment
Taiwan
1 participants2 participants1 participants
Region of Enrollment
Thailand
0 participants3 participants3 participants
Region of Enrollment
Tunisia
4 participants9 participants5 participants
Region of Enrollment
United States
4 participants6 participants2 participants
Sex: Female, Male
Female
88 Participants172 Participants84 Participants
Sex: Female, Male
Male
5 Participants12 Participants7 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
1 / 911 / 93
other
Total, other adverse events
75 / 9171 / 93
serious
Total, serious adverse events
6 / 9112 / 93

Outcome results

Primary

Number of Participants Who Achieved a British Isles Lupus Assessment Group-based Composite Lupus Assessment (BICLA) With Superimposed CS Tapering at Week 36

British Isles Lupus Assessment Group-based Composite Lupus Assessment (BICLA) responder was defined as a subject who had the following criteria at week 36: * All BILAG A scores at baseline improve to B/C/D and all BILAG B scores improve to C/D at W36, and * No BILAG worsening in other body systems: no new BILAG A or ≥ 2 new BILAG B scores at W36, and * No worsening in SLEDAI-2K total score at W36 compared with baseline, and * No deterioration in Physician Global Assessment (PGA) (\< 10% worsening) on Visual Analog Scale (VAS) 100 mm at W36 compared with baseline, and * No addition or increased dose level of anti-malarial drugs or immunosuppressive drugs or CS\* between W24 and W36 (\*≤5 mg prednisolone or equivalent /day at W24 and no increase until W36).

Time frame: At Week 36

Population: A total of 185 subjects were randomized and 184 were treated. 91 subjects received IFN-K, among them, 85 completed Week 36 visit. 93 subjects received placebo, among them, 84 completed Week 36 visit.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
IFN-KNumber of Participants Who Achieved a British Isles Lupus Assessment Group-based Composite Lupus Assessment (BICLA) With Superimposed CS Tapering at Week 3635 Participants
PlaceboNumber of Participants Who Achieved a British Isles Lupus Assessment Group-based Composite Lupus Assessment (BICLA) With Superimposed CS Tapering at Week 3629 Participants
Comparison: Descriptive statistics for the response to treatment according to BICLA at week 36 were presented by treatment group. The response to treatment according to BICLA was analyzed using a logistic regression with the response rate as dependent variable and treatment as independent variable, while adjusting for the minimization factors used for randomization.p-value: 0.3495% CI: [0.716, 2.657]Regression, Logistic
Primary

Percent Change From Baseline in IFN Gene Signature at W36

The biological endpoint aimed at evaluating the neutralization of the IFN gene signature following treatment with IFN-K compared to placebo, as measured by the % change from baseline of the expression of IFN-induced genes.

Time frame: Baseline and Last Available Value (LVA) between week 24 and week 36

Population: A total of 185 subjects were randomized and 184 were treated. 91 subjects received IFN-K, among them, 87 had a Last available value (LAV) between Week 24 and Week 36 analyzed. 93 subjects received placebo, among them, 84 had LAV between Week 24 and Week 36 analyzed.

ArmMeasureValue (MEAN)Dispersion
IFN-KPercent Change From Baseline in IFN Gene Signature at W36-31.04 percent changeStandard Deviation 38.96
PlaceboPercent Change From Baseline in IFN Gene Signature at W36-0.44 percent changeStandard Deviation 27.34
Comparison: The percent of change from baseline to last available value between W24 and W36 of treatment in the expression of IFN-induced genes was analyzed using an analysis of covariance (ANCOVA) model.p-value: <0.000195% CI: [-40.6653, -19.8951]ANCOVA
Secondary

BILAG Global Score Change From Baseline to Last Available Value (LVA) Between Week 24 and Week 36

British Isles Lupus Assessment Group (BILAG)-2004 index, it categorizes disease activity into 5 different levels from A to E, with Grade A representing very active disease and Grade E indicating no current or previous disease activity. Scoring was based on a total of 101 items, grouped into 9 organ/systems and the summation of the numerical values for the nine-system scores was given by the following formula: Numerical global score = A\*12 + B\*8 + C\*1, where A, B and C represent the number of Grades A, B and C respectively at each assessment. Grades D and E are considered as 0 (Chee-Seng Yee et al, 2010). The minimum score is 0 with no predefined maximum. The higher scores mean a worse outcome. The BILAG global score change from baseline to Last Available Value (LVA) week 24 and week 36 were presented analyzed.

Time frame: Last Available Value (LVA) between week 24 and week 36

Population: A total of 185 subjects were randomized and 184 were treated. 91 subjects received IFN-K, among them, 87 had a Last available value (LAV) between Week 24 and Week 36 analyzed. 93 subjects received placebo, among them, 84 had LAV between Week 24 and Week 36 analyzed.

ArmMeasureValue (MEAN)Dispersion
IFN-KBILAG Global Score Change From Baseline to Last Available Value (LVA) Between Week 24 and Week 36-11.43 scores on a scaleStandard Deviation 8.57
PlaceboBILAG Global Score Change From Baseline to Last Available Value (LVA) Between Week 24 and Week 36-10.76 scores on a scaleStandard Deviation 7.84
Comparison: Baseline to last available value between W24 and W36p-value: 0.7946Wilcoxon (Mann-Whitney)
Secondary

CLASI Total Activity Change From Baseline at Week 36

Cutaneous Lupus Erythematosus Disease Area and Severity Index (CLASI) was specifically developed to assess the cutaneous manifestations of SLE. It measures both disease activity and permanent damage (e.g. dyspigmentation and scarring) over the entire body surface. CLASI total activity score ranges from 0 to 70, with higher scores indicating more severe skin disease.

Time frame: Baseline and Week 36

ArmMeasureValue (MEAN)Dispersion
IFN-KCLASI Total Activity Change From Baseline at Week 36-3.22 scores on a scaleStandard Deviation 5.94
PlaceboCLASI Total Activity Change From Baseline at Week 36-2.85 scores on a scaleStandard Deviation 3.6
p-value: 0.6169Student - Satterthwaite
Secondary

Number of Participants Who Achieved a Composite SRI-4 Including CS ≤5mg/Day at Week 36

SRI-4 plus CS ≤ 5mg/day responder was defined as a participant who had the following criteria at Week 36: * reduction ≥4 points in SELENA-SLEDAI at week 36 compared with baseline, and * no new BILAG A at week 36, and * no more than 1 new BILAG B at week 36, and * no deterioration in PGA (\<10% worsening) on 100-mm VAS compared with baseline plus corticosteroids (CS) ≤5mg equivalent prednisolone per day at week 36

Time frame: At Week 36

Population: A total of 185 subjects were randomized and 184 were treated. 91 subjects received IFN-K, among them, 79 had CS ≤5mg/day at Week 36 visit. 93 subjects received placebo, among them, 77 had CS ≤5mg/day at Week 36 visit.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
IFN-KNumber of Participants Who Achieved a Composite SRI-4 Including CS ≤5mg/Day at Week 3643 Participants
PlaceboNumber of Participants Who Achieved a Composite SRI-4 Including CS ≤5mg/Day at Week 3630 Participants
p-value: 0.076295% CI: [0.938, 3.574]Regression, Logistic
Secondary

Number of Participants Who Achieved a Composite SRI-4 Including CS ≤7,5mg/Day at Week 36

SRI (4) plus CS ≤ 7.5 mg/day responder was defined as a participant who had the following criteria at week 36: * reduction ≥4 points in SELENA-SLEDAI at week 36 compared with baseline, and * no new BILAG A at week 36, and * no more than 1 new BILAG B at week 36, and * no deterioration in PGA (\<10% worsening) on 100-mm VAS compared with baseline plus CS ≤7.5mg equivalent prednisolone per day at week 36

Time frame: At Week 36

Population: A total of 185 subjects were randomized and 184 were treated. 91 subjects received IFN-K, among them, 79 had CS ≤7,5mg/day at Week 36 visit. 93 subjects received placebo, among them, 77 had CS ≤7,5mg/day at Week 36 visit.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
IFN-KNumber of Participants Who Achieved a Composite SRI-4 Including CS ≤7,5mg/Day at Week 3646 Participants
PlaceboNumber of Participants Who Achieved a Composite SRI-4 Including CS ≤7,5mg/Day at Week 3633 Participants
p-value: 0.079695% CI: [0.932, 3.524]Regression, Logistic
Secondary

Number of Participants Who Achieved a Lupus Low Disease Activity State (LLDAS) at Week 36

Lupus low disease activity state (LLDAS) was conceptually defined as 'a state which, if sustained, is associated with a low likelihood of adverse outcome, considering disease activity and medication safety'. Subsequently defined using consensus methodology, LLDAS is attained if all the following items are met: * SLEDAI-2K ≤4, with no activity in major organ systems (renal, central nervous system (CNS), cardiopulmonary, vasculitis, fever) and no hemolytic anemia or gastrointestinal activity * No new features of lupus disease activity compared with the previous assessment * SELENA-SLEDAI physician global assessment (PGA, scale 0-3) ≤1 * Current prednisolone (or equivalent) dose ≤7.5 mg daily * Well tolerated standard maintenance doses of immunosuppressive drugs and approved biological agents, excluding investigational drugs

Time frame: At Week 36

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
IFN-KNumber of Participants Who Achieved a Lupus Low Disease Activity State (LLDAS) at Week 3645 Participants
PlaceboNumber of Participants Who Achieved a Lupus Low Disease Activity State (LLDAS) at Week 3625 Participants
p-value: 0.0022Pearson's Chi-squared
Secondary

Number of Participants Who Achieved a Systematic Lupus Erythematosus (SLE) Responder Index (SRI)-4 at Week 36

SLE Responder Index (SRI); SRI-4 responder was defined as a subject who had the following criteria at week 36: * reduction ≥4 points in SELENA-SLEDAI at week 36 compared with baseline, and * no new BILAG A at week 36, and * no more than 1 new BILAG B at week 36, and * no deterioration in PGA (\<10% worsening) on 100-mm VAS compared with baseline

Time frame: W36 (9 months)

Population: A total of 185 subjects were randomized and 184 were treated. 91 subjects received IFN-K, among them, 84 completed Week 36 visit. 93 subjects received placebo, among them, 83 completed Week 36 visit.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
IFN-KNumber of Participants Who Achieved a Systematic Lupus Erythematosus (SLE) Responder Index (SRI)-4 at Week 3657 Participants
PlaceboNumber of Participants Who Achieved a Systematic Lupus Erythematosus (SLE) Responder Index (SRI)-4 at Week 3654 Participants
Comparison: The SRI-4 response was analyzed using a logistic regression using the response rate as dependent variable and treatment as independent variable, while adjusting for the minimization factors used for randomization.p-value: 0.624395% CI: [0.602, 2.329]Regression, Logistic
Secondary

Number of Participants With Neutralizing Anti-IFN-alpha Antibodies at W36

Individual serum antibody neutralizing capacity against recombinant IFN-alpha2b was measured by reporter gene assay using Interferon Sensitive Response Element (ISRE) reporter.

Time frame: At week 36

Population: 91 subjects received IFN-K, among them, 79 were positive for Anti-IFN-alpha antibodies at Week 36 visit.~No Neutralizing Anti-IFN-alpha antibodies were performed on placebo subjects.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
IFN-KNumber of Participants With Neutralizing Anti-IFN-alpha Antibodies at W3672 Participants
PlaceboNumber of Participants With Neutralizing Anti-IFN-alpha Antibodies at W360 Participants
Secondary

Number of Participants With Treatment-related Adverse Events

Number of participants who reported any treatment-related adverse events until month 9

Time frame: 9 months

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
IFN-KNumber of Participants With Treatment-related Adverse Events75 Participants
PlaceboNumber of Participants With Treatment-related Adverse Events71 Participants
Secondary

SELENA-SLEDAI - Change From Baseline to Week 36

Safety of Estrogens in Systemic Lupus Erythematosus National Assessment (SELENA)-SLEDAI, is a slightly modified version of the SLEDAI. This is a weighted index in which signs and symptoms, laboratory tests, and Physician's Global Assessment (PGA) for each of nine organ systems are given a weighted score and summed up if present at the time of the visit or in the preceding 10 days. The maximum theoretical score for the SELENA SLEDAI is 105 (all 24 descriptors present simultaneously) with 0 indicating inactive disease.

Time frame: Baseline and Week 36

Population: A total of 185 subjects were randomized and 184 were treated. 91 subjects received IFN-K, among them, 84 completed Week 36 visit. 93 subjects received placebo, among them, 83 completed Week 36 visit.

ArmMeasureValue (MEAN)Dispersion
IFN-KSELENA-SLEDAI - Change From Baseline to Week 36-5.48 SELENA SLEDAI ScoreStandard Deviation 4.3
PlaceboSELENA-SLEDAI - Change From Baseline to Week 36-5.54 SELENA SLEDAI ScoreStandard Deviation 4.44
p-value: 0.9224student - pooled
Secondary

SLICC/ACR-DI Change From Baseline at Week 36

Systemic Lupus International Collaborating Clinics/American College of Rheumatology Damage Index for systemic lupus erythematosus (SLICC/ACR-DI) captures permanent changes which have occurred in patients with SLE, regardless of causality. The questionnaire contains 41 items covering 12 different organ systems. The score of items ranges from 1 to 3 and the total score from 0 to 47. By definition score 0 corresponds to diagnostics and damage over time can only be stable or increase, theoretically to a maximum of 47 points.

Time frame: Baseline and Week 36

Population: A total of 185 subjects were randomized and 184 were treated. 91 subjects received IFN-K, among them, 82 completed SLICC/ACR/DI questionnaire at Week 36 visit. 93 subjects received placebo, among them, 83 completed Week 36 visit.

ArmMeasureValue (MEAN)Dispersion
IFN-KSLICC/ACR-DI Change From Baseline at Week 36-0.09 scores on a scaleStandard Deviation 0.59
PlaceboSLICC/ACR-DI Change From Baseline at Week 36-0.17 scores on a scaleStandard Deviation 0.49
p-value: 0.3258student - pooled
Other Pre-specified

CS Mean Daily Dose at W36

mean daily dose of corticosteroid (CS) (prednisone equivalent)

Time frame: At W36

ArmMeasureValue (MEAN)Dispersion
IFN-KCS Mean Daily Dose at W365.42 mg/dayStandard Error 3.28
PlaceboCS Mean Daily Dose at W367.06 mg/dayStandard Error 4.69
p-value: 0.0097Student - Satterthwaite
Post Hoc

Number of Participants Who Achieved a Composite SRI-4 (CS ≤5mg/Day) Excluding IFN-K Subjects Without Positive Anti-IFNalpha Neutralizing Antibodies at Week 36

Subjects who had the following criteria defined as : SRI-4 plus CS ≤5mg/day -excluding IFN-K subjects without positive anti-IFN-alpha neutralizing antibodies

Time frame: At week 36

Population: A total of 185 subjects were randomized and 184 were treated. 91 subjects received IFN-K, among them, 72 had a Composite SRI-4 (CS ≤5mg/day) at Week 36 visit. 93 subjects received placebo, among them, 77 had a Composite SRI-4 CS ≤5mg/day at Week 36 visit.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
IFN-KNumber of Participants Who Achieved a Composite SRI-4 (CS ≤5mg/Day) Excluding IFN-K Subjects Without Positive Anti-IFNalpha Neutralizing Antibodies at Week 3640 Participants
PlaceboNumber of Participants Who Achieved a Composite SRI-4 (CS ≤5mg/Day) Excluding IFN-K Subjects Without Positive Anti-IFNalpha Neutralizing Antibodies at Week 3630 Participants
p-value: 0.0425Pearson's Chi-squared
Post Hoc

Number of Participants Who Achieved a Composite SRI-4 (CS ≤7.5mg/Day) Excluding IFN-K Subjects Without Positive Anti-IFNalpha Neutralizing Antibodies at Week 36

participant who had the following criteria defined as : SRI-4 plus CS ≤7.5mg/day -excluding IFN-K Patients without positive anti-IFN-alpha neutralizing antibodies

Time frame: At week 36

Population: A total of 185 subjects were randomized and 184 were treated. 91 subjects received IFN-K, among them, 72 had a Composite SRI-4 (CS ≤7.5mg/day) at Week 36 visit. 93 subjects received placebo, among them, 77 had a Composite SRI-4 (CS ≤7.5mg/day) at Week 36 visit.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
IFN-KNumber of Participants Who Achieved a Composite SRI-4 (CS ≤7.5mg/Day) Excluding IFN-K Subjects Without Positive Anti-IFNalpha Neutralizing Antibodies at Week 3643 Participants
PlaceboNumber of Participants Who Achieved a Composite SRI-4 (CS ≤7.5mg/Day) Excluding IFN-K Subjects Without Positive Anti-IFNalpha Neutralizing Antibodies at Week 3633 Participants
p-value: 0.0396Pearson's Chi-squared

Source: ClinicalTrials.gov · Data processed: Mar 1, 2026