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Efficacy and Safety of Subcutaneous Secukinumab in Adults With Moderate to Severe Scalp Psoriasis

A Randomized, Double-blind, Placebo-controlled, Parallel-group, Multicenter Study to Demonstrate the Efficacy of Subcutaneous Secukinumab [300 mg] as Assessed by the Psoriasis Scalp Severity Index (PSSI) at 12 Weeks of Treatment, Compared to Placebo, and to Assess Safety and Tolerability up to 24 Weeks in Adult Subjects With Moderate to Severe Scalp Psoriasis

Status
Completed
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02267135
Acronym
SCALP
Enrollment
102
Registered
2014-10-17
Start date
2014-09-29
Completion date
2015-12-07
Last updated
2021-01-05

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

Conditions

Chronic Scalp Psoriasis

Keywords

scalp psoriasis, plaque psoriasis, secukinumab, AIN457, biologic, monoclonal antibody, psoriasis, AIN457A

Brief summary

This study will assess the efficacy and safety of secukinumab compared to placebo in adult patients who have moderate to severe scalp psoriasis that is poorly controlled by current psoriasis treatments.

Interventions

Secukinumab 300 mg will be provided in 1 mL prefilled syringes of 150 mg. Each dose of 300 mg secukinumab will consist of two secukinumab 150 mg injections once weekly for 5 weeks (Baseline, Weeks 1, 2, 3 and 4), followed by dosing every four weeks starting at Week 8 through Week 20 inclusive. In order to maintain the blinding, patients will receive additional placebo injections at Weeks 13, 14 and 15. The patients (or caregivers) will self-inject each dose at the study site under the supervision of site personnel when injections occur of days of study visits. The injections not occurring during a study visit will be done by the patients (or caregivers) at home.

BIOLOGICALPlacebo

Placebo will be provided in 1 mL prefilled syringe. Each placebo dose will consist of two placebo injections once weekly for five weeks (Baseline, Weeks 1, 2, 3 and 4), then after four weeks at Week 8. At Week 12, PSSI responders will continue on placebo and receive their injections once weekly for five weeks (Weeks 12, 13, 14, 15 and 16), then followed by dosing after four weeks at Week 20. PSSI non-responders will be switched to receive 300 mg secukinumab at Weeks 12, 13, 14, 15 and 16, then after four weeks at Week 20. The patients (or caregivers) will self-inject each dose at the study site under the supervision of site personnel when injections occur on days of study visits. The injections not occurring during a study visit will be done by the patients (or caregivers) at home.

Sponsors

Novartis Pharmaceuticals
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 No maximum
Healthy volunteers
No

Inclusion criteria

* Chronic scalp psoriasis for at least the previous six months * Moderate to severe scalp psoriasis as defined by a PSSI score of ≥12 and 30% or higher of scalp surface area affected * Must be candidates for systemic therapy, which means having scalp psoriasis inadequately controlled by topical treatments (corticosteroids), and/or phototherapy, and/or previous systemic therapy.

Exclusion criteria

* Forms of psoriasis other than chronic plaque * Drug-induced psoriasis (e.g., new onset or current exacerbation from β-blockers, calcium channel inhibitors) * Ongoing use of prohibited treatments (e.g., topical or systemic corticosteroids, UV therapy) * Prior exposure to secukinumab (AIN457) or any other biologic drug directly targeting IL17A or IL-17RA receptors * Use of other investigational drugs within 30 days prior to study entry, or within a period of 5 half-lives of the investigational treatment, whichever is longer * Active, ongoing inflammatory diseases other than psoriasis that might confound the evaluation of the benefit of secukinumab * Active system infections (with the exception of the common cold) during the two weeks prior to starting study treatment * Other protocol-defined inclusion/

Design outcomes

Primary

MeasureTime frameDescription
Psoriasis Scalp Severity Index 90 (PSSI 90)12 weeksPSSI 90 response (yes) at Week 12; PSSI 90 response means at least a 90% improvement in scalp psoriasis Percentage of participants with Psoriasis Scalp Severity Index 90 (PSSI 90) response of yes

Secondary

MeasureTime frameDescription
Change From Baseline in PSSI Score12 weeksChange from baseline in Psoriasis Scalp Severity Index (PSSI) score. PSSI score ranges from 0-72 with 72 being severe
Psoriasis Scalp Severity Index 75 (PSSI 75) Response12 weeksPSSI 75 response (yes) at Week 12 (non-responder imputation); PSSI 75 response means at least a 75% improvement in scalp psoriasis
Psoriasis Scalp Severity Index 100 (PSSI 100) Response12 weeksPSSI 100 response (yes) at Week 12 (non-responder imputation); PSSI 100 response means no sign of scalp psoriasis
Time to 50% Reduction in PSSI Score up to Week 1212 weeksTime to 50% reduction in PSSI score up to week 12 was estimated for drug arm The median time to reduction was not estimable for placebo because a 50% reduction in PSSI score was not achieved by enough participants receiving placebo
Psoriasis Area and Severity Index 75 (PASI 75)12 weeksPASI 75 response (yes) at Week 12 (non-responder imputation); PASI 75 response means at least a 75% improvement in body psoriasis
Secondary: Investigator's Global Assessment Model 2011 (IGA Mod 2011) Score of 0 or 1 (Scalp Only)12 weeksIGA mod 2011 score of 0 or 1 (scalp only) response at Week 12 (non-responder imputation); IGA mod 2011 score of 0 means no sign of scalp psoriasis, and IGA score of 1 means almost no scalp psoriasis
Psoriasis Area and Severity Index 100 (PASI 100)12 weeksPASI 100 response (yes) at Week 12 (non-responder imputation); PASI 100 response means no sign of body psoriasis
Investigator's Global Assessment Model 2011 (GA Mod 2011) Score of 0 or 1 (Entire Body Including Scalp)12 weeksIGA mod 2011 score of 0 or 1 (entire body including scalp); IGA mod 2011 score of 0 means no sign of psoriasis, and IGA mod 2011 score of 1 means almost no psoriasis
Change From Baseline in Subject Assessment of Pain12 weeksChange from baseline in the Subject Assessment of Pain Scale of 0-10 with 10 being the most painful
Change From Baseline in Subject Assessment of Itching12 weeksChange from baseline in the Subject Assessment of Itching Scale of 0-10 with 10 being the most itchy
Change From Baseline in Subject Assessment of Scaling (Scalp Only)12 weeksChange from baseline in the Subject Assessment of Scaling (scalp only) Scale of 0-10 with 10 being the most scaling
Psoriasis Area and Severity Index 90 (PASI 90)12 weeksPASI 90 response (yes) at Week 12 (non-responder imputation); PASI 90 response means at least a 90% improvement in body psoriasis

Countries

United States

Participant flow

Participants by arm

ArmCount
Secukinumab
Eligible patients received secukinumab 300 mg once weekly at Baseline, Weeks 1, 2, 3 and 4 followed by monthly dosing starting at Week 8 through Week 20 inclusive
51
Placebo
Eligible participants received placebo doses once weekly at Baseline, Weeks 1, 2, 3 and 4 followed by a dose after four weeks at Week 8. Prior to taking the Week 12 dose, participants were assessed for response to treatment using the Psoriasis Scalp Severity Index (PSSI). If the participant was a responder, the participant continued on placebo through Week 20. Participants who were not responders were switched to treatment with secukinumab 300 mg.
51
Total102

Withdrawals & dropouts

PeriodReasonFG000FG001
Period 1 (Randomized Set)Lost to Follow-up01
Period 1 (Randomized Set)Withdrawal by Subject13
Period 2 (Randomized Set)Adverse Event20
Period 2 (Randomized Set)Lost to Follow-up11
Period 2 (Randomized Set)Withdrawal by Subject10

Baseline characteristics

CharacteristicSecukinumabPlaceboTotal
Age, Customized
Mean
42.7 Age (years)
STANDARD_DEVIATION 13.39
41.1 Age (years)
STANDARD_DEVIATION 14.17
41.9 Age (years)
STANDARD_DEVIATION 13.74
Sex: Female, Male
Female
24 Participants30 Participants54 Participants
Sex: Female, Male
Male
27 Participants21 Participants48 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
— / —— / —— / —— / —
other
Total, other adverse events
8 / 515 / 515 / 465 / 96
serious
Total, serious adverse events
0 / 511 / 511 / 461 / 96

Outcome results

Primary

Psoriasis Scalp Severity Index 90 (PSSI 90)

PSSI 90 response (yes) at Week 12; PSSI 90 response means at least a 90% improvement in scalp psoriasis Percentage of participants with Psoriasis Scalp Severity Index 90 (PSSI 90) response of yes

Time frame: 12 weeks

Population: Full Analysis Set

ArmMeasureValue (NUMBER)
SecukinumabPsoriasis Scalp Severity Index 90 (PSSI 90)52.9 Percent of Participants
PlaceboPsoriasis Scalp Severity Index 90 (PSSI 90)2.0 Percent of Participants
p-value: <0.00195% CI: [37, 65]Cochran-Mantel-Haenszel
Secondary

Change From Baseline in PSSI Score

Change from baseline in Psoriasis Scalp Severity Index (PSSI) score. PSSI score ranges from 0-72 with 72 being severe

Time frame: 12 weeks

Population: Full Analysis Set

ArmMeasureValue (MEAN)Dispersion
SecukinumabChange From Baseline in PSSI Score-25.47 Scores on a scaleStandard Deviation 17.052
PlaceboChange From Baseline in PSSI Score-5.98 Scores on a scaleStandard Deviation 12.868
Secondary

Change From Baseline in Subject Assessment of Itching

Change from baseline in the Subject Assessment of Itching Scale of 0-10 with 10 being the most itchy

Time frame: 12 weeks

Population: Full Analysis Set

ArmMeasureValue (MEAN)Dispersion
SecukinumabChange From Baseline in Subject Assessment of Itching-4.10 Scores on a scaleStandard Deviation 3.008
PlaceboChange From Baseline in Subject Assessment of Itching-0.24 Scores on a scaleStandard Deviation 2.84
Secondary

Change From Baseline in Subject Assessment of Pain

Change from baseline in the Subject Assessment of Pain Scale of 0-10 with 10 being the most painful

Time frame: 12 weeks

Population: Full Analysis Set

ArmMeasureValue (MEAN)Dispersion
SecukinumabChange From Baseline in Subject Assessment of Pain-1.43 Scores on a scaleStandard Deviation 3.233
PlaceboChange From Baseline in Subject Assessment of Pain1.04 Scores on a scaleStandard Deviation 2.615
Secondary

Change From Baseline in Subject Assessment of Scaling (Scalp Only)

Change from baseline in the Subject Assessment of Scaling (scalp only) Scale of 0-10 with 10 being the most scaling

Time frame: 12 weeks

Population: Full Analysis Set

ArmMeasureValue (MEAN)Dispersion
SecukinumabChange From Baseline in Subject Assessment of Scaling (Scalp Only)-5.24 Scores on a scaleStandard Deviation 2.861
PlaceboChange From Baseline in Subject Assessment of Scaling (Scalp Only)-0.65 Scores on a scaleStandard Deviation 2.763
Secondary

Investigator's Global Assessment Model 2011 (GA Mod 2011) Score of 0 or 1 (Entire Body Including Scalp)

IGA mod 2011 score of 0 or 1 (entire body including scalp); IGA mod 2011 score of 0 means no sign of psoriasis, and IGA mod 2011 score of 1 means almost no psoriasis

Time frame: 12 weeks

Population: Full Analysis Set

ArmMeasureValue (NUMBER)
SecukinumabInvestigator's Global Assessment Model 2011 (GA Mod 2011) Score of 0 or 1 (Entire Body Including Scalp)52.9 Percent of Participants
PlaceboInvestigator's Global Assessment Model 2011 (GA Mod 2011) Score of 0 or 1 (Entire Body Including Scalp)3.9 Percent of Participants
Secondary

Psoriasis Area and Severity Index 100 (PASI 100)

PASI 100 response (yes) at Week 12 (non-responder imputation); PASI 100 response means no sign of body psoriasis

Time frame: 12 weeks

ArmMeasureValue (NUMBER)
SecukinumabPsoriasis Area and Severity Index 100 (PASI 100)23.5 Percent of Participants
PlaceboPsoriasis Area and Severity Index 100 (PASI 100)0.0 Percent of Participants
Secondary

Psoriasis Area and Severity Index 75 (PASI 75)

PASI 75 response (yes) at Week 12 (non-responder imputation); PASI 75 response means at least a 75% improvement in body psoriasis

Time frame: 12 weeks

Population: Full Analysis Set

ArmMeasureValue (NUMBER)
SecukinumabPsoriasis Area and Severity Index 75 (PASI 75)64.7 Percent of participants
PlaceboPsoriasis Area and Severity Index 75 (PASI 75)2.0 Percent of participants
Secondary

Psoriasis Area and Severity Index 90 (PASI 90)

PASI 90 response (yes) at Week 12 (non-responder imputation); PASI 90 response means at least a 90% improvement in body psoriasis

Time frame: 12 weeks

Population: Full Analysis Set

ArmMeasureValue (NUMBER)
SecukinumabPsoriasis Area and Severity Index 90 (PASI 90)47.1 Percent of Participants
PlaceboPsoriasis Area and Severity Index 90 (PASI 90)0.0 Percent of Participants
Secondary

Psoriasis Scalp Severity Index 100 (PSSI 100) Response

PSSI 100 response (yes) at Week 12 (non-responder imputation); PSSI 100 response means no sign of scalp psoriasis

Time frame: 12 weeks

Population: Full Analysis Set

ArmMeasureValue (NUMBER)
SecukinumabPsoriasis Scalp Severity Index 100 (PSSI 100) Response35.3 Percent of Participants
PlaceboPsoriasis Scalp Severity Index 100 (PSSI 100) Response0.0 Percent of Participants
Secondary

Psoriasis Scalp Severity Index 75 (PSSI 75) Response

PSSI 75 response (yes) at Week 12 (non-responder imputation); PSSI 75 response means at least a 75% improvement in scalp psoriasis

Time frame: 12 weeks

Population: Full Analysis Set

ArmMeasureValue (NUMBER)
SecukinumabPsoriasis Scalp Severity Index 75 (PSSI 75) Response62.7 Percent of Participants
PlaceboPsoriasis Scalp Severity Index 75 (PSSI 75) Response5.9 Percent of Participants
Secondary

Secondary: Investigator's Global Assessment Model 2011 (IGA Mod 2011) Score of 0 or 1 (Scalp Only)

IGA mod 2011 score of 0 or 1 (scalp only) response at Week 12 (non-responder imputation); IGA mod 2011 score of 0 means no sign of scalp psoriasis, and IGA score of 1 means almost no scalp psoriasis

Time frame: 12 weeks

Population: Full Analysis Set

ArmMeasureValue (NUMBER)
SecukinumabSecondary: Investigator's Global Assessment Model 2011 (IGA Mod 2011) Score of 0 or 1 (Scalp Only)56.9 Percent of Participants
PlaceboSecondary: Investigator's Global Assessment Model 2011 (IGA Mod 2011) Score of 0 or 1 (Scalp Only)5.9 Percent of Participants
Secondary

Time to 50% Reduction in PSSI Score up to Week 12

Time to 50% reduction in PSSI score up to week 12 was estimated for drug arm The median time to reduction was not estimable for placebo because a 50% reduction in PSSI score was not achieved by enough participants receiving placebo

Time frame: 12 weeks

Population: Full Analysis Set

ArmMeasureValue (MEDIAN)
SecukinumabTime to 50% Reduction in PSSI Score up to Week 123.29 weeks

Source: ClinicalTrials.gov · Data processed: Mar 12, 2026