A Randomized, Active-Controlled, Double-Blind, Phase 3 Study to Compare Efficacy and Safety of CT-P55 with Cosentyx in Patients with Moderate to Severe Plaque Psoriasis

2024-513348-27-00 Protocol CT-P55 3.1 Therapeutic confirmatory (Phase III) Ongoing, recruitment ended

Start 9 May 2025 · Status Ongoing, recruitment ended · 1 EU/EEA countries · 12 sites · Protocol CT-P55 3.1

Overview

Sponsor-declared trial summary

Phase Therapeutic confirmatory (Phase III)
Status Ongoing, recruitment ended
Participants planned 153
Countries 1
Sites 12

Plaque psoriasis

To demonstrate that CT-P55 is equivalent to EU-approved Cosentyx, in terms of efficacy as determined by the percent change from baseline in Psoriasis Area and Severity Index (PASI) score at Week 8

Key facts

Sponsor
Celltrion Inc.
Participant type
Patients
Age range
18-64 years, 65+ years
Gender
Male and Female
Therapeutic area
Diseases [C] - Skin and Connective Tissue Diseases [C17]
Trial duration
9 May 2025 → ongoing
Decision date (initial)
2025-02-17
Transition trial
No
Low-intervention
No
Rare-disease indication
No
Vulnerable population
No
Funding sources
CELLTRION, Inc.

External identifiers

EU CT number
2024-513348-27-00
ClinicalTrials.gov
NCT06630559

Trial design

CTIS Part I — objectives, methods, condition coding

Main objective

Scope: Efficacy

To demonstrate that CT-P55 is equivalent to EU-approved Cosentyx, in terms of efficacy as determined by the percent change from baseline in Psoriasis Area and Severity Index (PASI) score at Week 8

Secondary objectives 1

  1. To evaluate additional efficacy, pharmacokinetics (PK) and overall safety including immunogenicity up to Week 56

Conditions and MedDRA coding

Plaque psoriasis

VersionLevelCodeTermSystem organ class
20.0 LLT 10071117 Plaque psoriasis 10040785

Study design 1 period

#TitleAllocationBlindingRoles blindedArms
1 Treatment period
The patient will receive either CT-P55 or EU-approved Cosentyx, as per the first and second randomization, by SC injection every week until Week 4 and then every 4 weeks from Week 8 to Week 48.
Randomised Controlled Double [{"id":164674,"code":4,"name":"Analyst"},{"id":164671,"code":3,"name":"Monitor"},{"id":164675,"code":2,"name":"Investigator"},{"id":164673,"code":5,"name":"Carer"},{"id":164672,"code":1,"name":"Subject"}] CT-P55: 300 mg by 2 SC injections of 150 mg/mL via PFS every week for CT-P55 5 doses, followed by every 4 weeks for CT-P55 11 doses
EU-approved Cosentyx (Cosentyx maintenance group): 300 mg by 2 SC injections of 150 mg/mL via PFS every week for EU-approved Cosentyx 5 doses, followed by every 4 weeks for EU-approved Cosentyx 11 doses
EU-approved Cosentyx (switching group): 300 mg by 2 SC injections of 150 mg/mL via PFS every week for EU-approved Cosentyx 5 doses, EU-approved Cosentyx at Week 8, followed by every 4 weeks for CT-P55 10 doses

Eligibility criteria

Principal inclusion / exclusion criteria as submitted by sponsor

Inclusion criteria 4

  1. Patient is male or female aged 18 to 75 years old, both inclusive.
  2. Patient has a body weight of <110 kg.
  3. Patient has had a diagnosis of chronic plaque psoriasis for at least 24 weeks prior to the first administration of the study drug (Day 1).
  4. Patient has stable moderate to severe psoriasis with or without psoriatic arthritis at both Screening and at the time of the first administration of the study drug (Day 1) as defined by; a) PASI score of 12 or greater and b) Investigator’s Global Assessment (IGA) score of 3 or greater (based on a scale of 0 to 4) and c) Body Surface Area (BSA) affected by plaque psoriasis of 10% or greater.

Exclusion criteria 5

  1. Patient diagnosed with forms of psoriasis other than chronic plaque-type or medication-induced psoriasis.
  2. Patient who currently has or has a history of human immunodeficiency virus, hepatitis B/C, tuberculosis, or certain other infections.
  3. Patient who has the following medical conditions; uncontrolled diabetes mellitus, uncontrolled hypertension or cardiac disease, ongoing inflammatory disease, current or history of inflammatory bowel disease, ongoing eczematous eruptions, history of lymphoproliferative disease or malignancy within the 5 years, or clinically significant demyelinating disorders.
  4. Patient who has received or plans to receive any of the prohibited medications or treatments.
  5. Patient not willing to limit ultraviolet light exposure.

Endpoints

Primary and secondary outcome measures (English text)

Primary endpoints 1

  1. Percent change from baseline in PASI score at Week 8

Investigational products

Investigational medicinal products (IMPs), comparators, placebo, auxiliary

Test 1

CT-P55

PRD11550481 · Product

Active substance
Secukinumab
Other product name
Secukinumab
Pharmaceutical form
INJECTION
Route of administration
SUBCUTANEOUS INJECTION
Max daily dose
300 mg milligram(s)
Max total dose
4800 mg milligram(s)
Max treatment duration
48 Week(s)
Authorisation status
Not Authorised
MA holder
CELLTRION INC.
Paediatric formulation
No
Orphan designation
No

Comparator 1

Cosentyx 150 mg solution for injection in pre-filled syringe

PRD2398836 · Product

Active substance
Secukinumab
Substance synonyms
Recombinant human monoclonal antibody to human interleukin (IL)-17A of the IgG1/k class, AIN457
Pharmaceutical form
SOLUTION FOR INJECTION
Route of administration
SUBCUTANEOUS INJECTION
Max daily dose
300 mg milligram(s)
Max total dose
4800 mg milligram(s)
Max treatment duration
48 Week(s)
Authorisation status
Authorised
ATC code
L04AC10 — -
Marketing authorisation
EU/1/14/980/003
MA holder
NOVARTIS EUROPHARM LIMITED
MA country
EU
Paediatric formulation
No
Orphan designation
No
Modified vs. Marketing Authorisation
No

Sponsors and contacts

Sponsor organisations, regulatory contacts, third parties

Celltrion Inc.

Sponsor organisation
Celltrion Inc.
Address
13-1 Songdo-Dong
City
Incheon
Postcode
22014
Country
Korea, Republic of

Scientific contact point

Organisation
Celltrion Inc.
Contact name
Clinical Planning

Public contact point

Organisation
Celltrion Inc.
Contact name
Clinical Operation

Locations

1 EU/EEA country · 12 investigational sites

By country

CountryMS statusPlanned subjectsSites
Poland Ongoing, recruitment ended 153 12
Rest of world 0

Investigational sites

Poland

12 sites · Ongoing, recruitment ended
Royalderm Agnieszka Nawrocka
Dermatology, ul. Krzysztofa Kieślowskiego 3B/3, 02-962, Warszawa
Clinical Best Solutions Sp. z o.o. S.K.
Dermatology, Ul. Ludwika Idzikowskiego 16, 00-710, Warsaw
Centrum Badan Klinicznych Pi-House Sp. z o.o.
Dermatology, Ul. Na Zaspe 3, 80-546, Gdansk
Dermmedica Sp. z o.o.
Dermatology, Ul. Krzysztofa Kolumba 6, 51-503, Wroclaw
Specjalistyczny Gabinet Dermatologiczny Aplikacyjno Badawczy Marek Brzewski Paweł Brzewski s.c.
Dermatology, ul. Zbozowa 2/25, 30-002, Krakow
Uniwersytecki Szpital Kliniczny Im.Fryderyka Chopina W Rzeszowie
Dermatology, Ul. Fryderyka Szopena 2, 35-055, Rzeszow
Klinika Reuma Park Sp. z o.o. S.K.
Rheumatology, Aleja Wilanowska 333, 02-665, Warsaw
Wromedica I Bielicka A Strzalkowska s.c.
Dermatology, Ul. Adama Mickiewicza 91, 51-685, Wroclaw
Zdrowie Osteo-Medic S.C. Lidia i Artur Racewicz, Agnieszka i Jerzy Supronik
Dermatology, ul Wiejska 81, 15-351, Białystok
Dermoklinika-Centrum Medyczne s.c. M. Kierstan J. Narbutt A. Lesiak
Dermatology, Al. Tadeusza Kościuszki 93, 90-436, Łódź
NZOZ Lecznica Mak Med s.c.
Rheumatology, Ul. Wisniowa 22, 05-830, Nadarzyn
Clinicmed Daniluk Nowak Sp. k.
Rheumatology, Ul. Stoleczna 7/200, 15-879, Bialystok

Country notifications

Trial-start, recruitment-start, end and early-termination notifications submitted per Member State

Country Trial startTrial end Recruitment startRecruitment end Early termination
Poland 2025-05-09 2025-05-09 2025-09-03

Results and documents

Annex IV summary of results, Annex V layperson summary, and all documents registered in CTIS for this trial

Documents 10 files

Public protocol annexes, IB summaries, regulatory submissions and post-authorisation documents registered in CTIS.

TypeTitleVersion
Protocol (for publication) D1_Protocol_2024-513348-27_Public 5.0
Protocol (for publication) D3_11 point NRS_pl 1.1
Protocol (for publication) D3_DLQI_pl N/A
Recruitment arrangements (for publication) K1_Recruitment arrangements_pl 1
Subject information and informed consent form (for publication) L1_Biomarker-ICF_pl_public 1.4
Subject information and informed consent form (for publication) L1_Main-ICF_pl_public 4.2
Subject information and informed consent form (for publication) L1_Pregnant-Partner-ICF_pl_public v1.4
Summary of Product Characteristics (SmPC) (for publication) E2_SmPC_Cosentyx N/A
Synopsis of the protocol (for publication) D1_Protocol synopsis_en_2024-513348-27_Public 5.0
Synopsis of the protocol (for publication) D1_Protocol synopsis_pl_2024-513348-27_Public 5.0

Application history

3 submissions — initial application plus substantial / non-substantial modifications

#TypeCodeSubmittedReference MSConclusionDecision date
1 INITIAL IN 2024-10-11 Poland Acceptable
2025-02-10
2025-02-17
2 NON SUBSTANTIAL MODIFICATION NSM-2 2025-07-01 Poland Acceptable
2025-02-10
2025-07-01
3 SUBSTANTIAL MODIFICATION SM-3 2025-10-27 Poland Acceptable
2026-02-06
2026-02-09