The PREVAIL-2 study was designed to assess the safety and potential efficacy of PRV-3279 in flare prevention in systemic lupus erythematosus (SLE) participants with active disease after amelioration induced by corticosteroid treatment.
This was a randomized, double-blind, placebo-controlled study in adult participants with active SLE. Approximately 100 eligible participants were randomized at a 1:1 ratio to receive treatment with either PRV-3279 or placebo. Eligible participants included male or female adults, 18 to 70 years of age, with a diagnosis of SLE for at least 6 months. The study drug was administered every 4 weeks for 20 weeks in a double-blind fashion, followed by an 8-week safety follow-up period.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
QUADRUPLE
Enrollment
28
Percentage of Participants Who Maintained the Improvement in Systemic Lupus Erythematosus (SLE) Disease Activity From Baseline to Week 24
Improvement in SLE disease activity:no lupus flare during baseline to Week 24. Lupus flare:Investigator's assessment that SLE activity met Lupus Foundation of America international consensus definition for flare (defined as measurable increase in disease activity in 1 or more organ systems involving new or worse clinical signs and symptoms and/or laboratory measurements,must be considered clinically significant by the assessor,and usually there would be at least consideration of a change or an increase in treatment);a score of "definite worsening" or "severe worsening" on Clinician's Global Impression of Change;and at least 1 of following occurrences: an increase of \>=4 points from baseline in hybrid Safety of Estrogens in Lupus Erythematosus National Assessment- Systemic Lupus Erythematosus Disease Activity Index (SELENA-SLEDAI) score (hSLEDAI),or \>=1 organ with an A score (severe) or B score (moderate) item rated new or worse on British Isles Lupus Assessment Group (BILAG) Index.
Time frame: Baseline (Day 1) to Week 24
Time to Treatment Failure From Baseline to Week 24
Treatment failure was defined compared to baseline as the occurrence of an SLE flare (as defined in the primary outcome measure #1); or missing 2 consecutive doses or 3 or more total doses of the study treatment for any reason; or initiation of a new SLE medication; or increased dose of current SLE medication, with the exception of nonsteroidal anti-inflammatory drugs; or participant withdrawal from the study before the Week 24 visit. Baseline was defined as the last non-missing value prior to the first dose of study treatment. Estimations were based on the Kaplan-Meier method.
Time frame: Baseline (Day 1) to Week 24
Percentage of Participants Who Met European League Against Rheumatism (EULAR)-Recommended Goal of Low Disease Responders From Baseline Until Week 24
EULAR recommended goal of low disease responders were defined as participants who met either of following criteria: hSLEDAI score \<3 (lower disease activity) or all BILAG scores were C (mild disease activity), or D (no disease activity in an organ previously affected) or E (organ inactive and never previously active). Baseline was defined as the last non-missing value prior to the first dose of study treatment. Percentages are rounded off to the tenth decimal place.
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Medvin Clinical Research - Apple Valley- Site Number : 133
Apple Valley, California, United States
Medvin Clinical Research - Covina - West San Bernardino Road- Site Number : 106
Covina, California, United States
University of California San Diego - La Jolla- Site Number : 108
La Jolla, California, United States
University of California Los Angeles Medical Center- Site Number : 122
Los Angeles, California, United States
Facey Medical Group - Los Angeles- Site Number : 126
Los Angeles, California, United States
Desert Medical Advances- Site Number : 114
Rancho Mirage, California, United States
Medvin Clinical Research - Tujunga- Site Number : 119
Tujunga, California, United States
Medvin Clinical Research - Whittier- Site Number : 118
Whittier, California, United States
Highlands Advanced Rheumatology & Arthritis Center- Site Number : 116
Avon Park, Florida, United States
Center for Rheumatology, Immunology and Arthritis- Site Number : 109
Fort Lauderdale, Florida, United States
...and 26 more locations
Time frame: Baseline (Day 1) and Weeks 4, 8, 12, 16, 20 and 24
Change From Screening Until Week 24 in the Physical Component Score (PCS) in the Short Form 36 (SF-36) Health Survey
SF-36 health survey consisted of 36 items which measured 8 subscales relevant to quality of life (QOL):physical functioning(PF),general health(GH),mental health(MH),vitality(VT),role physical(RP),role emotional(RE),bodily pain(BP), and social functioning(SF).Score range for each of 8 subscales was from 0(maximum disability) to 100(no disability);higher scores indicated good health condition. Responses on SF-36 were used to calculate 2 summary scores: PCS contributed by PF,RP,BP and GH and mental component summary(MCS) contributed by MH,RE, SF and VT. Summations of item scores of same domain gave sub-scale scores, which were transformed to calculate summary scores of PCS and MCS. Both PCS and MCS score ranges from 0(worst) to 100(best); higher scores indicated less disability and better QoL. Change from screening (post-screening value minus screening value) until Week 24 in PCS in SF-36 health survey is presented. Baseline:last non-missing value prior to first dose of study treatment.
Time frame: Screening (Days -42 to -1), Baseline (Day 1) and Weeks 4, 8, 12, 16, 20 and 24
Percentage of Participants Who Met the Criteria for Systemic Lupus Erythematosus Responder Index-4 (SRI-4) From Baseline Until Week 24
SRI-4 was defined as a hSLEDAI score decrease of \>=4 points; and no new organs with a BILAG A (severe) score; and no more than 1 new organ with a BILAG B (moderate) score; and no SELENA-SLEDAI physician's global assessment (ssPGA) score increase of \>0.3 points. Baseline was defined as the last non-missing value prior to the first dose of study treatment. Percentages are rounded off to the tenth decimal place.
Time frame: Baseline (Day 1) and Weeks 4, 8, 12, 16, 20 and 24
Percentage of Participants Who Met the British Isles Lupus Assessment Group-Based Combined Lupus Assessment (BICLA) Criteria From Baseline Until Week 24
BICLA criteria was defined as reduction by \>=1 grade in all organs with BILAG A (severe) or B (moderate) scores; and no worsening of SLEDAI or other BILAG organs; and no ssPGA score increase of \>=0.3 points. Baseline was defined as the last non-missing value prior to the first dose of study treatment. Percentages are rounded off to the tenth decimal place.
Time frame: Baseline (Day 1) and Weeks 4, 8, 12, 16, 20 and 24
Number of Participants With Treatment-Emergent Adverse Events (TEAEs), Treatment-Emergent Serious Adverse Events (TESAEs), TEAEs Leading to Treatment Discontinuation and Treatment-Emergent Adverse Events of Special Interest (TEAESIs)
An AE was any untoward medical occurrence in a participant or clinical study participant, temporally associated with the use of study treatment, whether or not considered related to the study treatment. An SAE was defined as any untoward medical occurrence that, at any dose, resulted in death, was life-threatening, required inpatient hospitalization or prolongation of existing hospitalization, resulted in persistent disability/incapacity, was a congenital anomaly/birth defect, or any other medically important event. A TEAE was defined as an AE that developed, worsened or became serious during the TE period. An AESI was defined as a TEAE including SAE, that were of scientific and medical concern specific to PRV-3279, for which ongoing monitoring and rapid communication by the Investigator to the Sponsor was considered appropriate.
Time frame: From first dose of study treatment (Day 1) up to 56 days post last dose of study treatment, up to 29.1 weeks
Serum Concentrations of PRV-3279
Serum samples were collected at specified timepoints to evaluate serum concentration of PRV-3279.
Time frame: Pre-dose and 2 hours post-dose on Days 1, 29, 57, 86, 113, 141, 169 and 197; 24, 48, 72, 168, 336 hours post-dose on Days 1 and 141
Number of Participants With Anti-Drug Antibodies (ADAs) Against PRV-3279
Blood samples were collected at specified timepoints to evaluate the presence of ADA against PRV-3279. Treatment-emergent ADA was defined as at least 1 treatment-induced or treatment-boosted ADA at any time after first study treatment administration. Treatment-induced ADA was defined as ADA that developed at any time after first study treatment administration and without pre-existing ADA (including participants without pre-treatment samples). Treatment-boosted ADA was defined as pre-existing ADA that boosted during the TE period to a significant higher titer than the baseline. Number of participants with treatment-emergent ADA is presented.
Time frame: From first dose of study treatment (Day 1) up to 56 days post last dose of study treatment, up to 29.1 weeks