Summary of the safety profileThe most frequently reported adverse reactions are upper respiratory tract infections (17.1%) (mostfrequently nasopharyngitis, rhinitis).
Tabulated list of adverse reactionsAdverse reactions from clinical studies and post-marketing reports (Table 3) are listed by MedDRAsystem organ class. Within each system organ class, the adverse reactions are ranked by frequency,with the most frequent reactions first. Within each frequency grouping, adverse reactions are presentedin order of decreasing seriousness. In addition, the corresponding frequency category for each adversereaction is based on the following convention: very common (≥1/10); common (≥1/100 to <1/10);uncommon (≥1/1 000 to <1/100); rare (≥1/10 000 to <1/1 000); very rare (<1/10 000); and not known(cannot be estimated from the available data).
Over 20 000 patients have been treated with secukinumab in blinded and open-label clinical studies invarious indications (plaque psoriasis, psoriatic arthritis, axial spondyloarthritis, hidradenitissuppurativa [HS] and other autoimmune conditions), representing 34 908 patient years of exposure. Ofthese, over 14 000 patients were exposed to secukinumab for at least one year. The safety profile ofsecukinumab is consistent across all indications.
Table 3 List of adverse reactions in clinical studies1) and post-marketing experience
System organ class Frequency Adverse reaction
Infections and Very common Upper respiratory tract infectionsinfestations Common Oral herpes
Uncommon Oral candidiasis
Otitis externa
Lower respiratory tract infections
Tinea pedis
Not known Mucosal and cutaneous candidiasis (includingoesophageal candidiasis)
Blood and lymphatic Uncommon Neutropeniasystem disorders
Immune system Rare Anaphylactic reactionsdisorders Angioedema
Nervous system Common Headachedisorders
Eye disorders Uncommon Conjunctivitis
Respiratory, thoracic Common Rhinorrhoeaand mediastinaldisorders
Gastrointestinal Common Diarrhoeadisorders Nausea
Uncommon Inflammatory bowel disease
Skin and subcutaneous Common Eczematissue disorders Uncommon Urticaria
Dyshidrotic eczema
Rare Exfoliative dermatitis2)
Hypersensitivity vasculitis
Not known Pyoderma gangrenosum
General disorders and Common Fatigueadministration siteconditions1) Placebo-controlled clinical studies (phase III) in plaque psoriasis, PsA, AS, nr-axSpA and HSpatients exposed to 300 mg, 150 mg, 75 mg or placebo up to 12 weeks (psoriasis) or 16 weeks(PsA, AS, nr-axSpA and HS) treatment duration2) Cases were reported in patients with psoriasis diagnosis
Description of selected adverse reactionsInfectionsIn the placebo-controlled period of clinical studies in plaque psoriasis (a total of 1 382 patients treatedwith secukinumab and 694 patients treated with placebo for up to 12 weeks), infections were reportedin 28.7% of patients treated with secukinumab compared with 18.9% of patients treated with placebo.
The majority of infections consisted of non-serious and mild to moderate upper respiratory tractinfections, such as nasopharyngitis, which did not necessitate treatment discontinuation. There was anincrease in mucosal or cutaneous candidiasis, consistent with the mechanism of action, but the caseswere mild or moderate in severity, non-serious, responsive to standard treatment and did notnecessitate treatment discontinuation. Serious infections occurred in 0.14% of patients treated withsecukinumab and in 0.3% of patients treated with placebo (see section 4.4).
Over the entire treatment period (a total of 3 430 patients treated with secukinumab for up to 52 weeksfor the majority of patients), infections were reported in 47.5% of patients treated with secukinumab(0.9 per patient-year of follow-up). Serious infections were reported in 1.2% of patients treated withsecukinumab (0.015 per patient-year of follow-up).
Infection rates observed in psoriatic arthritis and axial spondyloarthritis (ankylosing spondylitis andnon-radiographic axial spondyloarthritis) clinical studies were similar to those observed in thepsoriasis studies.
Patients with hidradenitis suppurativa are more susceptible to infections. In the placebo-controlledperiod of clinical studies in hidradenitis suppurativa (a total of 721 patients treated with secukinumaband 363 patients treated with placebo for up to 16 weeks), infections were numerically highercompared to those observed in the psoriasis studies (30.7% of patients treated with secukinumabcompared with 31.7% in patients treated with placebo). Most of these were non-serious, mild ormoderate in severity and did not require treatment discontinuation or interruption.
NeutropeniaIn psoriasis phase III clinical studies, neutropenia was more frequently observed with secukinumabthan with placebo, but most cases were mild, transient and reversible. Neutropenia <1.0-0.5x109/l(CTCAE grade 3) was reported in 18 out of 3 430 (0.5%) patients on secukinumab, with no dosedependence and no temporal relationship to infections in 15 out of 18 cases. There were no reportedcases of more severe neutropenia. Non-serious infections with usual response to standard care and notrequiring discontinuation of secukinumab were reported in the remaining 3 cases.
The frequency of neutropenia in psoriatic arthritis, axial spondyloarthritis (ankylosing spondylitis andnon-radiographic axial spondyloarthritis) and hidradenitis suppurativa was similar to psoriasis.
Rare cases of neutropenia <0.5x109/l (CTCAE grade 4) were reported.
ImmunogenicityIn psoriasis, psoriatic arthritis, axial spondyloarthritis (ankylosing spondylitis and non-radiographicaxial spondyloarthritis) and hidradenitis suppurativa clinical studies, less than 1% of patients treatedwith secukinumab developed antibodies to secukinumab up to 52 weeks of treatment. About half ofthe treatment-emergent anti-drug antibodies were neutralising, but this was not associated with loss ofefficacy or pharmacokinetic abnormalities.
Paediatric populationUndesirable effects in paediatric patients from the age of 6 years with plaque psoriasis
The safety of secukinumab was assessed in two phase III studies in paediatric patients with plaquepsoriasis. The first study (paediatric study 1) was a double-blind, placebo-controlled study of162 patients from 6 to less than 18 years of age with severe plaque psoriasis. The second study(paediatric study 2) is an open-label study of 84 patients from 6 to less than 18 years of age withmoderate to severe plaque psoriasis. The safety profile reported in these two studies was consistentwith the safety profile reported in adult plaque psoriasis patients.
Undesirable effects in paediatric patients with JIA
The safety of secukinumab was also assessed in a phase III study in 86 juvenile idiopathic arthritispatients with ERA and JPsA from 2 to less than 18 years of age. The safety profile reported in thisstudy was consistent with the safety profile reported in adult patients.
Reporting of suspected adverse reactionsReporting suspected adverse reactions after authorisation of the medicinal product is important. Itallows continued monitoring of the benefit/risk balance of the medicinal product. Healthcareprofessionals are asked to report any suspected adverse reactions via the national reporting systemlisted in Appendix V.
Pharmacotherapeutic group: Immunosuppressants, interleukin inhibitors, ATC code: L04AC10
Mechanism of actionSecukinumab is a fully human IgG1/κ monoclonal antibody that selectively binds to and neutralisesthe proinflammatory cytokine interleukin-17A (IL-17A). Secukinumab works by targeting IL-17A andinhibiting its interaction with the IL-17 receptor, which is expressed on various cell types includingkeratinocytes. As a result, secukinumab inhibits the release of proinflammatory cytokines, chemokinesand mediators of tissue damage and reduces IL-17A-mediated contributions to autoimmune andinflammatory diseases. Clinically relevant levels of secukinumab reach the skin and reduce localinflammatory markers. As a direct consequence treatment with secukinumab reduces erythema,induration and desquamation present in plaque psoriasis lesions.
IL-17A is a naturally occurring cytokine that is involved in normal inflammatory and immuneresponses. IL-17A plays a key role in the pathogenesis of plaque psoriasis, psoriatic arthritis and axialspondyloarthritis (ankylosing spondylitis and non-radiographic axial spondyloarthritis) and isup-regulated in lesional skin in contrast to non-lesional skin of plaque psoriasis patients and insynovial tissue of psoriatic arthritis patients. The frequency of IL-17-producing cells was alsosignificantly higher in the subchondral bone marrow of facet joints from patients with ankylosingspondylitis. Increased numbers of IL-17A producing lymphocytes have also been found in patientswith non-radiographic axial spondyloarthritis. Inhibition of IL-17A was shown to be effective in thetreatment of ankylosing spondylitis, thus establishing the key role of this cytokine in axialspondyloarthritis.
Pharmacodynamic effectsSerum levels of total IL-17A (free and secukinumab-bound IL-17A) are initially increased in patientsreceiving secukinumab. This is followed by a slow decrease due to reduced clearance ofsecukinumab-bound IL-17A, indicating that secukinumab selectively captures free IL-17A, whichplays a key role in the pathogenesis of plaque psoriasis.
In a study with secukinumab, infiltrating epidermal neutrophils and various neutrophil-associatedmarkers that are increased in lesional skin of plaque psoriasis patients were significantly reduced afterone to two weeks of treatment.
Secukinumab has been shown to lower (within 1 to 2 weeks of treatment) levels of C-reactive protein,which is a marker of inflammation.
Clinical efficacy and safetyAdult plaque psoriasis
The safety and efficacy of secukinumab were assessed in four randomised, double-blind,placebo-controlled phase III studies in patients with moderate to severe plaque psoriasis who werecandidates for phototherapy or systemic therapy [ERASURE, FIXTURE, FEATURE, JUNCTURE].
The efficacy and safety of secukinumab 150 mg and 300 mg were evaluated versus either placebo oretanercept. In addition, one study assessed a chronic treatment regimen versus a “retreatment asneeded” regimen [SCULPTURE].
Of the 2 403 patients who were included in the placebo-controlled studies, 79% were biologic-naive,45% were non-biologic failures and 8% were biologic failures (6% were anti-TNF failures, and 2%were anti-p40 failures). Approximately 15 to 25% of patients in phase III studies had psoriatic arthritis(PsA) at baseline.
Psoriasis study 1 (ERASURE) evaluated 738 patients. Patients randomised to secukinumab received150 mg or 300 mg doses at weeks 0, 1, 2, 3 and 4, followed by the same dose every month. Psoriasisstudy 2 (FIXTURE) evaluated 1 306 patients. Patients randomised to secukinumab received 150 mg or300 mg doses at weeks 0, 1, 2, 3 and 4, followed by the same dose every month. Patients randomisedto etanercept received 50 mg doses twice per week for 12 weeks followed by 50 mg every week. Inboth study 1 and study 2, patients randomised to receive placebo who were non-responders at week 12then crossed over to receive secukinumab (either 150 mg or 300 mg) at weeks 12, 13, 14, and 15,followed by the same dose every month starting at week 16. All patients were followed for up to52 weeks following first administration of study treatment.
Psoriasis study 3 (FEATURE) evaluated 177 patients using a pre-filled syringe compared with placeboafter 12 weeks of treatment to assess the safety, tolerability, and usability of secukinumabself-administration via the pre-filled syringe. Psoriasis study 4 (JUNCTURE) evaluated 182 patientsusing a pre-filled pen compared with placebo after 12 weeks of treatment to assess the safety,tolerability, and usability of secukinumab self-administration via the pre-filled pen. In both study 3and study 4, patients randomised to secukinumab received 150 mg or 300 mg doses at weeks 0, 1, 2, 3and 4, followed by the same dose every month. Patients were also randomised to receive placebo atweeks 0, 1, 2, 3 and 4, followed by the same dose every month.
Psoriasis study 5 (SCULPTURE) evaluated 966 patients. All patients received secukinumab 150 mg or300 mg doses at weeks 0, 1, 2, 3, 4, 8 and 12 and then were randomised to receive either amaintenance regimen of the same dose every month starting at week 12 or a “retreatment as needed”regimen of the same dose. Patients randomised to “retreatment as needed” did not achieve adequatemaintenance of response and therefore a fixed monthly maintenance regimen is recommended.
The co-primary endpoints in the placebo and active-controlled studies were the proportion of patientswho achieved a PASI 75 response and IGA mod 2011 “clear” or “almost clear” response versusplacebo at week 12 (see Tables 4 and 5). The 300 mg dose provided improved skin clearanceparticularly for “clear” or “almost clear” skin across the efficacy endpoints of PASI 90, PASI 100, and
IGA mod 2011 0 or 1 response across all studies with peak effects seen at week 16, therefore this doseis recommended.
Table 4 Summary of PASI 50/75/90/100 & IGA⃰ mod 2011 “clear” or “almost clear” clinicalresponse in psoriasis studies 1, 3 and 4 (ERASURE, FEATURE and JUNCTURE)
Week 12 Week 16 Week 52
Placebo 150 mg 300 mg 150 mg 300 mg 150 mg 300 mg
Study 1
Number of patients 246 244 245 244 245 244 245
PASI 50 response n (%) 22 203 222 212 224 187 207(8.9%) (83.5%) (90.6%) (87.2%) (91.4%) (77%) (84.5%)
PASI 75 response n (%) 11 174 200 188 211 146 182(4.5%) (71.6%)** (81.6%)** (77.4%) (86.1%) (60.1%) (74.3%)
PASI 90 response n (%) 3 (1.2%) 95 145 130 171 88 147(39.1%)** (59.2%)** (53.5%) (69.8%) (36.2%) (60.0%)
PASI 100 response n (%) 2 (0.8%) 31 70 51 102 49 96(12.8%) (28.6%) (21.0%) (41.6%) (20.2%) (39.2%)
IGA mod 2011 “clear” or 6 125 160 142 180 101 148“almost clear” response (2.40%) (51.2%)** (65.3%)** (58.2%) (73.5%) (41.4%) (60.4%)n (%)
Study 3
Number of patients 59 59 58 - - - -
PASI 50 response n (%) 3 (5.1%) 51 51 - - - -(86.4%) (87.9%)
PASI 75 response n (%) 0 (0.0%) 41 44 - - - -(69.5%)** (75.9%)**
PASI 90 response n (%) 0 (0.0%) 27 35 - - - -(45.8%) (60.3%)
PASI 100 response n (%) 0 (0.0%) 5 25 - - - -(8.5%) (43.1%)
IGA mod 2011 “clear” or 0 (0.0%) 31 40 - - - -“almost clear” response (52.5%)** (69.0%)**n (%)
Study 4
Number of patients 61 60 60 - - - -
PASI 50 response n (%) 5 (8.2%) 48 58 - - - -(80.0%) (96.7%)
PASI 75 response n (%) 2 (3.3%) 43 52 - - - -(71.7%)** (86.7%)**
PASI 90 response n (%) 0 (0.0%) 24 33 - - - -(40.0%) (55.0%)
PASI 100 response n(%) 0 (0.0%) 10 16 - - - -(16.7%) (26.7%)
IGA mod 2011 “clear” or 0 (0.0%) 32 44 - - - -“almost clear” response (53.3%)** (73.3%)**n (%)
* The IGA mod 2011 is a 5-category scale including “0 = clear”, “1 = almost clear”, “2 = mild”, “3 =moderate” or “4 = severe”, indicating the physician’s overall assessment of the psoriasis severity focusingon induration, erythema and scaling. Treatment success of “clear” or “almost clear” consisted of no signs ofpsoriasis or normal to pink colouration of lesions, no thickening of the plaque and none to minimal focalscaling.
** p-values versus placebo and adjusted for multiplicity: p<0.0001.
Table 5 Summary of clinical response on psoriasis study 2 (FIXTURE)
Week 12 Week 16 Week 52
Placebo 150 mg 300 mg Etanercept 150 mg 300 mg Etanercept 150 mg 300 mg Etanercept
Number of 324 327 323 323 327 323 323 327 323 323patients
PASI 50 49 266 296 226 290 302 257 (79.6%) 249 274 234 (72.4%)response (15.1%) (81.3%) (91.6%) (70.0%) (88.7%) (93.5%) (76.1%) (84.8%)n (%)
PASI 75 16 219 249 142 247 280 189 (58.5%) 215 254 179 (55.4%)response (4.9%) (67.0%) (77.1%) (44.0%) (75.5%) (86.7%) (65.7%) (78.6%)n (%) ** **
PASI 90 5 (1.5%) 137 175 67 (20.7%) 176 234 101 (31.3%) 147 210 108 (33.4%)response (41.9%) (54.2%) (53.8%) (72.4%) (45.0%) (65.0%)n (%)
PASI 100 0 (0%) 47 78 14 (4.3%) 84 119 24 (7.4%) 65 117 32 (9.9%)response (14.4%) (24.1%) (25.7%) (36.8%) (19.9%) (36.2%)n (%)
IGA mod 9 (2.8%) 167 202 88 (27.2%) 200 244 127 (39.3%) 168 219 120 (37.2%)2011 “clear” (51.1%) (62.5%) (61.2%) (75.5%) (51.4%) (67.8%)or “almost ** **clear”responsen (%)
** p-values versus etanercept: p=0.0250
In an additional psoriasis study (CLEAR) 676 patients were evaluated. Secukinumab 300 mg met theprimary and secondary endpoints by showing superiority to ustekinumab based on PASI 90 responseat week 16 (primary endpoint), speed of onset of PASI 75 response at week 4, and long-term PASI 90response at week 52. Greater efficacy of secukinumab compared to ustekinumab for the endpoints
PASI 75/90/100 and IGA mod 2011 0 or 1 response (“clear” or “almost clear”) was observed earlyand continued through to week 52 (Table 6).
Table 6 Summary of clinical response on CLEAR study
Week 4 Week 16 Week 52
Secukinumab Ustekinumab* Secukinumab Ustekinumab* Secukinumab Ustekinumab*300 mg 300 mg 300 mg
Number of 334 335 334 335 334 335patients
PASI 75 166 (49.7%)** 69 (20.6%) 311 (93.1%) 276 (82.4%) 306 (91.6%) 262 (78.2%)response n (%)
PASI 90 70 (21.0%) 18 (5.4%) 264 (79.0%)** 192 (57.3%) 250 203 (60.6%)response n (%) (74.9%)***
PASI 100 14 (4.2%) 3 (0.9%) 148 (44.3%) 95 (28.4%) 150 (44.9%) 123 (36.7%)response n (%)
IGA mod 2011 128 (38.3%) 41 (12.2%) 278 (83.2%) 226 (67.5%) 261 (78.1%) 213 (63.6%)“clear” or“almost clear”response n (%)
* Patients treated with secukinumab received 300 mg doses at weeks 0, 1, 2 3 and 4, followed by the same doseevery 4 weeks until week 52. Patients treated with ustekinumab received 45 mg or 90 mg at weeks 0 and 4, thenevery 12 weeks until week 52 (dosed by weight as per approved posology)
** p-values versus ustekinumab: p<0.0001 for primary endpoint of PASI 90 at week 16 and secondary endpoint of PASI 75at week 4
*** p-values versus ustekinumab: p=0.0001 for secondary endpoint of PASI 90 at week 52
Secukinumab was efficacious in systemic treatment-naive, biologic-naive, biologic/anti-TNF-exposedand biologic/anti-TNF-failure patients. Improvements in PASI 75 in patients with concurrent psoriaticarthritis at baseline were similar to those in the overall plaque psoriasis population.
Secukinumab was associated with a fast onset of efficacy with a 50% reduction in mean PASI byweek 3 for the 300 mg dose.
Figure 1 Time course of percentage change from baseline of mean PASI score in study 1(ERASURE)
PASI % changefrom baseline
Weeks of treatmentn = number of patients evaluable
* secukinumab 150 mg (n=243) secukinumab 300 mg (n=245) Placebo (n=245)
Specific locations/forms of plaque psoriasis
In two additional placebo-controlled studies, improvement was seen in both nail psoriasis(TRANSFIGURE, 198 patients) and palmoplantar plaque psoriasis (GESTURE, 205 patients). In the
TRANSFIGURE study, secukinumab was superior to placebo at week 16 (46.1% for 300 mg, 38.4%for 150 mg and 11.7% for placebo) as assessed by significant improvement from baseline in the Nail
Psoriasis Severity Index (NAPSI %) for patients with moderate to severe plaque psoriasis with nailinvolvement. In the GESTURE study, secukinumab was superior to placebo at week 16 (33.3% for300 mg, 22.1% for 150 mg, and 1.5% for placebo) as assessed by significant improvement of ppIGA 0or 1 response (“clear” or “almost clear”) for patients with moderate to severe palmoplantar plaquepsoriasis.
A placebo-controlled study evaluated 102 patients with moderate to severe scalp psoriasis, defined ashaving a Psoriasis Scalp Severity Index (PSSI) score of ≥12, an IGA mod 2011 scalp only score of 3or greater and at least 30% of the scalp surface area affected. Secukinumab 300 mg was superior toplacebo at week 12 as assessed by significant improvement from baseline in both the PSSI 90 response(52.9% versus 2.0%) and IGA mod 2011 0 or 1 scalp only response (56.9% versus 5.9%).
Improvement in both endpoints was sustained for secukinumab patients who continued treatmentthrough to week 24.
Quality of life/patient-reported outcomes
Statistically significant improvements at week 12 (studies 1-4) from baseline compared to placebowere demonstrated in the DLQI (Dermatology Life Quality Index). Mean decreases (improvements) in
DLQI from baseline ranged from -10.4 to -11.6 with secukinumab 300 mg, from -7.7 to -10.1 withsecukinumab 150 mg, versus -1.1 to -1.9 for placebo at week 12. These improvements weremaintained for 52 weeks (studies 1 and 2).
Forty percent of the participants in studies 1 and 2 completed the Psoriasis Symptom Diary©. For theparticipants completing the diary in each of these studies, statistically significant improvements atweek 12 from baseline compared to placebo in patient-reported signs and symptoms of itching, painand scaling were demonstrated.
Statistically significant improvements at week 4 from baseline in patients treated with secukinumabcompared to patients treated with ustekinumab (CLEAR) were demonstrated in the DLQI and theseimprovements were maintained for up to 52 weeks.
Statistically significant improvements in patient-reported signs and symptoms of itching, pain andscaling at week 16 and week 52 (CLEAR) were demonstrated in the Psoriasis Symptom Diary© inpatients treated with secukinumab compared to patients treated with ustekinumab.
Statistically significant improvements (decreases) at week 12 from baseline in the scalp psoriasis studywere demonstrated in patient reported signs and symptoms of scalp itching, pain and scaling comparedto placebo.
Paediatric populationPaediatric plaque psoriasisSecukinumab has been shown to improve signs and symptoms, and health-related quality of life inpaediatric patients 6 years and older with plaque psoriasis (see Tables 8 and 10).
Severe plaque psoriasis
The safety and efficacy of secukinumab were assessed in a randomised, double-blind, placebo andetanercept-controlled phase III study in paediatric patients from 6 to <18 years of age with severeplaque psoriasis, as defined by a PASI score ≥20, an IGA mod 2011 score of 4, and BSA involvementof ≥10%, who were candidates for systemic therapy. Approximately 43% of the patients had priorexposure to phototherapy, 53% to conventional systemic therapy, 3% to biologics, and 9% hadconcomitant psoriatic arthritis.
The paediatric psoriasis study 1 evaluated 162 patients who were randomised to receive low dosesecukinumab (75 mg for body weight <50 kg or 150 mg for body weight ≥50 kg), high dosesecukinumab (75 mg for body weight <25 kg, 150 mg for body weight between ≥25 kg and <50 kg, or300 mg for body weight ≥50 kg), or placebo at weeks 0, 1, 2, 3, and 4 followed by the same doseevery 4 weeks, or etanercept. Patients randomised to etanercept received 0.8 mg/kg weekly (up to amaximum of 50 mg). Patient distribution by weight and age at randomisation is described in Table 7.
Table 7 Patient distribution by weight and age for paediatric psoriasis study 1
Randomisation Description Secukinumab Secukinumab Placebo Etanercept Totalstrata low dose high dosen=40 n=40 n=41 n=41 N=162
Age 6-<12 years 8 9 10 10 37≥12- 32 31 31 31 125<18 years
Weight <25 kg 2 3 3 4 12≥25-<50 kg 17 15 17 16 65≥50 kg 21 22 21 21 85
Patients randomised to receive placebo who were non-responders at week 12 were switched to eitherthe secukinumab low or high dose group (dose based on body weight group) and received study drugat weeks 12, 13, 14, and 15, followed by the same dose every 4 weeks starting at week 16. The co-primary endpoints were the proportion of patients who achieved a PASI 75 response and IGA mod2011 ‘clear’ or ‘almost clear’ (0 or 1) response at week 12.
During the 12 week placebo-controlled period, the efficacy of both the low and the high dose ofsecukinumab was comparable for the co-primary endpoints. The odds ratio estimates in favour of bothsecukinumab doses were statistically significant for both the PASI 75 and IGA mod 2011 0 or 1responses.
All patients were followed for efficacy and safety during the 52 weeks following the first dose. Theproportion of patients achieving PASI 75 and IGA mod 2011 ‘clear’ or ‘almost clear’ (0 or 1)responses showed separation between secukinumab treatment groups and placebo at the first post-baseline visit at week 4, the difference becoming more prominent at week 12. The response wasmaintained throughout the 52 week time period (see Table 8). Improvement in PASI 50, 90, 100responder rates and Children’s Dermatology Life Quality Index (CDLQI) scores of 0 or 1 were alsomaintained throughout the 52 week time period.
In addition, PASI 75, IGA 0 or 1, PASI 90 response rates at weeks 12 and 52 for both secukinumablow and high dose groups were higher than the rates for patients treated with etanercept (see Table 8).
Beyond week 12, efficacy of both the low and the high dose of secukinumab was comparable althoughthe efficacy of the high dose was higher for patients ≥50 kg. The safety profiles of the low dose andthe high dose were comparable and consistent with the safety profile in adults.
Table 8 Summary of clinical response in severe paediatric psoriasis at weeks 12 and 52(paediatric psoriasis study 1)*
Response Treatment comparison 'test' 'control' odds ratiocriterion 'test' vs. 'control' n**/m (%) n**/m (%) estimate (95% CI) p-value
At week 12***
PASI 75 secukinumab low dose vs. placebo 32/40 (80.0) 6/41 (14.6) 25.78 (7.08, 114.66) <0.0001secukinumab high dose vs. placebo 31/40 (77.5) 6/41 (14.6) 22.65 (6.31, 98.93) <0.0001secukinumab low dose vs. etanercept 32/40 (80.0) 26/41 (63.4) 2.25 (0.73, 7.38)secukinumab high dose vs. etanercept 31/40 (77.5) 26/41 (63.4) 1.92 (0.64, 6.07)
IGA 0/1 secukinumab low dose vs. placebo 28/40 (70.0) 2/41 (4.9) 51.77 (10.02, 538.64) <0.0001secukinumab high dose vs. placebo 24/40 (60.0) 2/41 (4.9) 32.52 (6.48, 329.52) <0.0001secukinumab low dose vs. etanercept 28/40 (70.0) 14/41 (34.1) 4.49 (1.60, 13.42)secukinumab high dose vs. etanercept 24/40 (60.0) 14/41 (34.1) 2.86 (1.05, 8.13)
PASI 90 secukinumab low dose vs. placebo 29/40 (72.5) 1/41 (2.4) 133.67 (16.83, 6395.22) <0.0001secukinumab high dose vs. placebo 27/40 (67.5) 1/41 (2.4) 102.86 (13.22, 4850.13) <0.0001secukinumab low dose vs. etanercept 29/40 (72.5) 12/41 (29.3) 7.03 (2.34, 23.19)secukinumab high dose vs. etanercept 27/40 (67.5) 12/41 (29.3) 5.32 (1.82, 16.75)
At week 52
PASI 75 secukinumab low dose vs. etanercept 35/40 (87.5) 28/41 (68.3) 3.12 (0.91, 12.52)secukinumab high dose vs. etanercept 35/40 (87.5) 28/41 (68.3) 3.09 (0.90, 12.39)
IGA 0/1 secukinumab low dose vs. etanercept 29/40 (72.5) 23/41 (56.1) 2.02 (0.73, 5.77)secukinumab high dose vs. etanercept 30/40 (75.0) 23/41 (56.1) 2.26 (0.81, 6.62)
PASI 90 secukinumab low dose vs. etanercept 30/40 (75.0) 21/41 (51.2) 2.85 (1.02, 8.38)secukinumab high dose vs. etanercept 32/40 (80.0) 21/41 (51.2) 3.69 (1.27, 11.61)
* non-responder imputation was used to handle missing values
** n is the number of responders, m = number of patients evaluable
*** extended visit window at week 12
Odds ratio, 95% confidence interval, and p-value are from an exact logistic regression model with treatmentgroup, baseline body-weight category and age category as factors
A higher proportion of paediatric patients treated with secukinumab reported improvement in health-related quality of life as measured by a CDLQI score of 0 or 1 compared to placebo at week 12 (lowdose 44.7%, high dose 50%, placebo 15%). Over time up to and including week 52 both secukinumabdose groups were numerically higher than the etanercept group (low dose 60.6%, high dose 66.7%,etanercept 44.4%).
Moderate to severe plaque psoriasis
Secukinumab was predicted to be effective for the treatment of paediatric patients with moderateplaque psoriasis based on the demonstrated efficacy and exposure response relationship in adultpatients with moderate to severe plaque psoriasis, and the similarity of the disease course,pathophysiology, and drug effect in adult and paediatric patients at the same exposure levels.
Moreover, the safety and efficacy of secukinumab was assessed in an open-label, two-arm,parallel-group, multicentre phase III study in paediatric patients from 6 to <18 years of age withmoderate to severe plaque psoriasis, as defined by a PASI score ≥12, an IGA mod 2011 score of ≥3,and BSA involvement of ≥10%, who were candidates for systemic therapy.
The paediatric psoriasis study 2 evaluated 84 patients who were randomised to receive low dosesecukinumab (75 mg for body weight <50 kg or 150 mg for body weight ≥50 kg) or high dosesecukinumab (75 mg for body weight <25 kg, 150 mg for body weight between ≥25 kg and <50 kg, or300 mg for body weight ≥50 kg) at weeks 0, 1, 2, 3, and 4 followed by the same dose every 4 weeks.
Patient distribution by weight and age at randomisation is described in Table 9.
Table 9 Patient distribution by weight and age for paediatric psoriasis study 2
Sub-groups Description Secukinumab Secukinumab Totallow dose high dosen=42 n=42 N=84
Age 6-<12 years 17 16 33≥12-<18 years 25 26 51
Weight <25 kg 4 4 8≥25-<50 kg 13 12 25≥50 kg 25 26 51
The co-primary endpoints were the proportion of patients who achieved a PASI 75 response and IGAmod 2011 ‘clear’ or ‘almost clear’ (0 or 1) response at week 12.
The efficacy of both the low and the high dose of secukinumab was comparable and showedstatistically significant improvement compared to historical placebo for the co-primary endpoints. Theestimated posterior probability of a positive treatment effect was 100%.
Patients were followed for efficacy over a 52 week period after first administration. Efficacy (definedas PASI 75 response and IGA mod 2011 ‘clear’ or ‘almost clear’ [0 or 1]) was observed as early as thefirst post-baseline visit at week 2, and the proportion of patients who achieved a PASI 75 response and
IGA mod 2011 ‘clear’ or ‘almost clear’ (0 or 1) increased up to week 24 and were sustained untilweek 52. Improvement in PASI 90 and PASI 100 were also observed at week 12, increased up toweek 24, and were sustained until week 52 (see Table 10).
The safety profiles of the low dose and the high dose were comparable and consistent with the safetyprofile in adults.
Table 10 Summary of clinical response in moderate to severe paediatric psoriasis at weeks 12and 52 (paediatric psoriasis study 2)*
Week 12 Week 52
Secukinumab Secukinumab Secukinumab Secukinumablow dose high dose low dose high dose
Number of patients 42 42 42 42
PASI 75 response n (%) 39 (92.9%) 39 (92.9%) 37 (88.1%) 38 (90.5%)
IGA mod 2011 ‘clear’ or ‘almost 33 (78.6%) 35 (83.3%) 36 (85.7%) 35 (83.3%)clear’ response n (%)
PASI 90 response n (%) 29 (69%) 32 (76.2%) 32 (76.2%) 35 (83.3%)
PASI 100 response n (%) 25 (59.5%) 23 (54.8%) 22 (52.4%) 29 (69.0%)
* non-responder imputation was used to handle missing values
These outcomes in the paediatric moderate to severe plaque psoriasis population confirmed thepredictive assumptions based on the efficacy and exposure response relationship in adult patients,mentioned above.
In the low dose group, 50% and 70.7% of patients achieved a CDLQI 0 or 1 score at weeks 12 and 52,respectively. In the high dose group, 61.9% and 70.3% achieved a CDLQI 0 or 1 score at weeks 12and 52, respectively.
Juvenile idiopathic arthritis (JIA)Enthesitis-related arthritis (ERA) and juvenile psoriatic arthritis (JPsA)
The efficacy and safety of secukinumab were assessed in 86 patients in a 3-part, double-blind,placebo-controlled, event-driven, randomised, phase III study in patients 2 to <18 years of age withactive ERA or JPsA as diagnosed based on a modified International League of Associations for
Rheumatology (ILAR) JIA classification criteria. The study consisted of an open-label portion (Part 1)where all patients received secukinumab until week 12. Patients demonstrating a JIA ACR 30response at week 12 entered into the Part 2 double-blind phase and were randomised 1:1 to continuetreatment with secukinumab or to begin treatment with placebo (randomised withdrawal) untilweek 104 or until a flare occured. Patients who flared then entered open-label secukinumab treatmentuntil week 104 (Part 3).
The JIA patient subtypes at study entry were: 60.5% ERA and 39.5% JPsA, who either had inadequateresponse or were intolerant to ≥1 disease-modifying antirheumatic drugs (DMARDs) and ≥1 non-steroidal anti-inflammatory drugs (NSAIDs). At baseline, MTX use was reported for 65.1% ofpatients; (63.5% [33/52] of ERA patients and 67.6% [23/34] of JPsA patients). There were 12 out of52 ERA patients concomitantly treated with sulfasalazine (23.1%). Patients with a body weight atbaseline <50 kg (n=30) were given a dose of 75 mg and patients with a body weight ≥50 kg (n=56)were given a dose of 150 mg. Age at baseline ranged from 2 to 17 years, with 3 patients between 2 to<6 years, 22 patients 6 to <12 years and 61 patients 12 to <18 years. At baseline the Juvenile Arthritis
Disease Activity Score (JADAS)-27 was 15.1 (SD:7.1).
The primary endpoint was time to flare in the randomised withdrawal period (Part 2). Disease flarewas defined as a ≥30% worsening in at least three of the six JIA ACR response criteria and ≥30%improvement in not more than one of the six JIA ACR response criteria and a minimum of two activejoints.
At the end of Part 1, 75 out of 86 (87.2%) patients demonstrated a JIA ACR 30 response and enteredinto Part 2.
The study met its primary endpoint by demonstrating a statistically significant prolongation in the timeto disease flare in patients treated with secukinumab compared to placebo in Part 2. The risk of flarewas reduced by 72% for patients on secukinumab compared with patients on placebo in Part 2 (Hazardratio=0.28, 95% CI: 0.13 to 0.63, p<0.001) (Figure 2 and Table 11). During Part 2, a total of21 patients in the placebo group experienced a flare event (11 JPsA and 10 ERA) compared with10 patients in the secukinumab group (4 JPsA and 6 ERA).
Figure 2 Kaplan-Meier estimates of the time to disease flare in Part 2
Proportion ofpatients withdisease flare (%)
Time (days)
Secukinumab ------ Placebo in Part 2 + Censored
Number of patients at risk
Secukinumab 37 36 34 33 32 30 30 29 29 29 25 25 24 23 23 23 23 23 23 21 21 21 20 14 0
Placebo in Part 2 38 38 32 29 28 25 22 21 21 21 20 20 19 19 19 18 18 16 16 15 15 15 15 10 0
Table 11 Survival analysis of time to disease flare - Part 2
Secukinumab Placebo in Part 2(N=37) (N=38)
Number of flare events at the end of Part 2, 10 (27.0) 21 (55.3)n (%)
Kaplan-Meier estimates:
Median, in days (95% CI) NC (NC, NC) 453.0 (114.0, NC)
Flare-free rate at 6 months (95% CI) 85.8 (69.2, 93.8) 60.1 (42.7, 73.7)
Flare-free rate at 12 months (95% CI) 76.7 (58.7, 87.6) 54.3 (37.1, 68.7)
Flare-free rate at 18 months (95% CI) 73.2 (54.6, 85.1) 42.9 (26.7, 58.1)
Hazard ratio to placebo: Estimate (95% CI) 0.28 (0.13, 0.63)
Stratified log-rank test p-value <0.001**
Analysis was conducted on all randomised patients who received at least one dose of study drug in
Part 2.
Secukinumab: all patients who did not take any placebo. Placebo in Part 2: all patients who tookplacebo in Part 2 and secukinumab in other period/s. NC = Not calculable. ** = Statisticallysignificant on one-sided significance level 0.025.
In open-label Part 1, all patients received secukinumab until week 12. At week 12, 83.7%, 67.4%, and38.4% of children were JIA ACR 50, 70 and 90 responders, respectively (Figure 3). The onset ofaction of secukinumab occurred as early as week 1. At week 12 the JADAS-27 score was 4.64(SD:4.73) and the mean decrease from baseline in JADAS-27 was -10.487 (SD:7.23).
Figure 3 JIA ACR 30/50/70/90 response for subjects up to week 12 in Part 1*
Percentage ofresponders
Time (weeks)
*non-responder imputation was used to handle missing values
The data in the 2 to <6 age group were inconclusive due to the low number of patients below 6 yearsof age enrolled in the study.
The European Medicines Agency has waived the obligation to submit the results of studies with
Cosentyx in plaque psoriasis in paediatric patients aged from birth to less than 6 years and in chronicidiopathic arthritis for paediatric patients aged from birth to less than 2 years (see section 4.2 forinformation on paediatric use).