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Randomized Placebo-controlled Study of ISA247 in Plaque Psoriasis

A Phase III, Randomized, Multicentre, Double-Blind, Placebo-Controlled Study of ISA247 in Plaque Psoriasis Patients

Status
Completed
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00244842
Acronym
SPIRIT
Enrollment
451
Registered
2005-10-27
Start date
2004-12-31
Completion date
2005-10-31
Last updated
2023-03-27

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

Conditions

Psoriasis

Keywords

Randomized Controlled Trials, Immunosuppression, Adult, Chronic Disease, Dermatologic Agents, Female, Humans, Male, Middle Aged, Severity of Illness Index, Treatment Outcome, Quality of Life, Double-Blind Method

Brief summary

The purpose of this study is to determine which dose of voclosporin is effective in the treatment of plaque psoriasis compared to placebo.

Detailed description

Psoriasis is a chronic skin condition that can have a significant impact on patient's physical and mental well being. The most common form of psoriasis is plaque psoriasis. Targeted treatments in psoriasis have been reported recently, yet cyclosporine, a calcineurin inhibitor (CNi) remains one of the treatments which has the greatest efficacy. Voclosporin represents the possibility of a calcineurin inhibitor which is not only as efficacious as cyclosporine A, but also has an improved toxicity profile. Comparison(s): Voclosporin at 3 dose levels (0.2, 0.3, and 0.4 mg/kg twice a day)compared to placebo.

Interventions

voclosporin 0.2, 0.3, or 0.4 mg/kg po BID

DRUGPlacebo

Placebo

Sponsors

Aurinia Pharmaceuticals Inc.
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

* Plaque psoriasis ≥ 6 months prior to screening. * Diagnosis of stable, plaque psoriasis; i.e. psoriasis must not be spontaneously improving or worsening in the 4 weeks prior to the screening visit. * Plaque psoriasis involving ≥10% of the body surface area (BSA) at screening and prior to randomization at the day 0 visit. * PASI score ≥10 at screening and prior to randomization at the day 0 visit. * Not pregnant or nursing or planning to become pregnant during the course of the study. * Sexually active women of childbearing potential or less than 1 year post-menopausal and sexually active men who are not surgically sterile must use a reliable form of birth control during study treatment and for at least 3 months after the last dose of study drug. Surgically sterile females are not considered to be of childbearing potential. Reliable forms of birth control include oral or depot contraceptives, and double-barrier methods. * Written informed consent prior to washout and screening procedures. * Able to keep study appointments and cooperate with all study requirements, in the opinion of the investigator.

Exclusion criteria

* Has generalized erythrodermic, guttate, or pustular psoriasis. * Have other dermatoses that would interfere with the evaluation of psoriasis, at the discretion of the investigator. * A current malignancy or history of malignancy within 5 years or a history of lymphoma at any time. Subjects can be enrolled with a history of squamous or basal cell carcinoma that has been surgically excised or removed with curettage and electrodesiccation. * Has current, uncontrolled bacterial, viral, or fungal infections that require intravenous antibiotics or antifungals or had had such infections within 60 days prior to screening. * A history of streptococcal infection that required oral antibiotics within 30 days prior to screening. * A known history of tuberculosis. * Serologic evidence or known latent human immunodeficiency virus (HIV), hepatitis B (HBV) or hepatitis C (HCV) virus. * Uncontrolled hypertension as defined by systolic blood pressure ≥150 mm Hg or diastolic blood pressure ≥ 90 mm Hg. * MDRD GFR ≤ 60 ml/min. * Variation between the screening and Visit 1 GFR ≥30%. * Alanine transaminase, aspartate transaminase, or gamma-glutamyl transferase ≥ 3x upper limit of normal (ULN). * White blood cell count ≤ 2.8 x 109/L. * Triglycerides ≥ 3x ULN. * Requires the following prohibited medications or treatments during the washout or treatment period: drugs potentiating the nephrotoxicity of voclosporin such as NSAID's or ACE inhibitors, drugs interfering with its pharmacokinetics; drugs considered to contribute to psoriasis flare; or, systemic and topical psoriasis medication (including psoralen/ultraviolet A light treatment) that may interfere with assessment of study drug efficacy. * Has used any investigational drug or device within 28 days or 5 half lives (whichever is longer) prior to the screening visit. * Has taken biological agent(s), except flu shots, tetanus shots, or boosters, within 3 months of the start of treatment. Biological agents include any virus, therapeutic serum, toxin, antitoxin, or analogous product applicable to the prevention, treatment, or cure of diseases or injuries of man. * Previous exposure to voclosporin. * A history of clinically defined allergy to cyclosporine or any of the constituents of the voclosporin formulation (vitamin E, medium chain triglyceride oil, Tween 40, ethanol). * A history of alcoholism or drug addiction within 1 year prior to study entry. * Weighs \<45 kg (99 lbs) or \> 140 kg (308 lbs). * A history of disease, including mental/emotional disorder that would interfere with the subject's participation in the study, or that might cause the administration of ISA247 to pose a significant risk to the subject, in the opinion of the investigator.

Design outcomes

Primary

MeasureTime frameDescription
Proportion of Subjects Achieving a PASI-75 at 12 Weeks at Each of the 3 Dose Levels of Voclosporin.Twelve WeeksProportion of subjects achieving a PASI-75 at 12 weeks at each of the 3 dose levels of voclosporin.

Secondary

MeasureTime frame
To Investigate the Safety and Tolerability of Voclosporin.Twelve and twenty four weeks
To Investigate the Pharmacokinetics and Pharmacodynamics of Voclosporin After Chronic Dosing in a Subset of Subjects.Twelve and twenty four weeks
To Evaluate the Effect of Voclosporin on Subject Quality of LifeTwelve and twenty four weeks

Countries

Canada

Participant flow

Participants by arm

ArmCount
Placebo
Placebo
115
Voclosporin: 0.2
voclosporin 0.2 mg/kg po BID
107
Voclosporin: 0.3
voclosporin 0.3 mg/kg po BID
113
Voclosporin: 0.4
voclosporin 0.4 mg/kg po BID
116
Total451

Baseline characteristics

CharacteristicVoclosporin: 0.2Voclosporin: 0.3PlaceboVoclosporin: 0.4Total
Age, Categorical
<=18 years
0 Participants0 Participants0 Participants0 Participants0 Participants
Age, Categorical
>=65 years
0 Participants0 Participants0 Participants0 Participants0 Participants
Age, Categorical
Between 18 and 65 years
107 Participants113 Participants115 Participants116 Participants451 Participants
Age, Continuous42 years40 years41 years41 years41 years
Region of Enrollment
Canada
107 participants113 participants115 participants116 participants451 participants
Sex: Female, Male
Female
44 Participants25 Participants45 Participants35 Participants149 Participants
Sex: Female, Male
Male
63 Participants88 Participants70 Participants81 Participants302 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
EG003
affected / at risk
deaths
Total, all-cause mortality
1 / 1150 / 1071 / 1130 / 116
other
Total, other adverse events
62 / 11567 / 10765 / 11380 / 116
serious
Total, serious adverse events
4 / 1152 / 1074 / 1131 / 116

Outcome results

Primary

Proportion of Subjects Achieving a PASI-75 at 12 Weeks at Each of the 3 Dose Levels of Voclosporin.

Proportion of subjects achieving a PASI-75 at 12 weeks at each of the 3 dose levels of voclosporin.

Time frame: Twelve Weeks

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
PlaceboProportion of Subjects Achieving a PASI-75 at 12 Weeks at Each of the 3 Dose Levels of Voclosporin.4 Participants
Voclosporin 0.2Proportion of Subjects Achieving a PASI-75 at 12 Weeks at Each of the 3 Dose Levels of Voclosporin.14 Participants
Voclosporin 0.3Proportion of Subjects Achieving a PASI-75 at 12 Weeks at Each of the 3 Dose Levels of Voclosporin.26 Participants
Voclosporin 0.4Proportion of Subjects Achieving a PASI-75 at 12 Weeks at Each of the 3 Dose Levels of Voclosporin.44 Participants
Secondary

To Evaluate the Effect of Voclosporin on Subject Quality of Life

Time frame: Twelve and twenty four weeks

Secondary

To Investigate the Pharmacokinetics and Pharmacodynamics of Voclosporin After Chronic Dosing in a Subset of Subjects.

Time frame: Twelve and twenty four weeks

Secondary

To Investigate the Safety and Tolerability of Voclosporin.

Time frame: Twelve and twenty four weeks

Source: ClinicalTrials.gov · Data processed: Apr 5, 2026