Overview
Sponsor-declared trial summary
psoriatic arthritis (PsA)
To evaluate long-term safety and tolerability of sonelokimab in participants with PsA
Key facts
- Sponsor
- MoonLake Immunotherapeutics AG
- Participant type
- Patients
- Age range
- 18-64 years, 65+ years
- Gender
- Male and Female
- Therapeutic area
- Diseases [C] - Musculoskeletal Diseases [C05]
- Decision date (initial)
- 2026-03-06
- Transition trial
- No
- Low-intervention
- No
- Rare-disease indication
- No
- Vulnerable population
- Yes
- Funding sources
- MoonLake Immunotherapeutics AG
Trial design
CTIS Part I — objectives, methods, condition coding
Main objective
Scope: Efficacy, Safety
To evaluate long-term safety and tolerability of sonelokimab in participants with PsA
Secondary objectives 1
- To describe the long-term efficacy of sonelokimab in participants with PsA
Conditions and MedDRA coding
psoriatic arthritis (PsA)
| Version | Level | Code | Term | System organ class |
|---|---|---|---|---|
| 21.0 | LLT | 10037160 | Psoriatic arthritis | 10028395 |
Regulatory references
- Scientific advice from competent authorities
- European Medicines Agency, Food And Drug Administration
- Plan to share IPD
- Yes
| EU CT number | Title | Sponsor |
|---|---|---|
| 2025-520564-17-00 | A Phase 3, multicenter, open-label extension study to evaluate the long-term safety, tolerability, and efficacy of subcutaneous sonelokimab in participants with moderate to severe hidradenitis suppurativa | MoonLake Immunotherapeutics AG |
| 2024-516213-20-00 | A Phase 3, parallel-group, randomized, double-blind, 3-arm, placebo-controlled, multicenter study to investigate the efficacy and safety of subcutaneous sonelokimab in male and female participants aged 18 years and over with active psoriatic arthritis who are naive to biologic DMARDs | MoonLake Immunotherapeutics AG |
| 2024-516219-25-00 | A Phase 3, parallel-group, randomized, double-blind, 4-arm, placebo-controlled, multicenter study with risankizumab as active reference arm, to investigate the efficacy and safety of subcutaneous sonelokimab in male and female participants aged 18 years and over with active psoriatic arthritis and previous inadequate response or intolerance to tumor necrosis factor-α inhibitors | MoonLake Immunotherapeutics AG |
Eligibility criteria
Principal inclusion / exclusion criteria as submitted by sponsor
Inclusion criteria 7
- 1. Participants who, in the opinion of the investigator, are expected to benefit from participation in this OLE study.
- 2. Participants who have received the second to last and/or last dose, as planned in the parental study, and have completed the end-of-treatment (EOT) visit (Week 52) of the parental study.
- 3. Participants must have received their last dose of study treatment in the parental study no more than 8 weeks (but ideally 4 weeks) before the first dose in this OLE study.
- 4. Female participants are eligible to participate if they are not pregnant or breastfeeding and must be of nonchildbearing potential (WONCBP) or (if childbearing potential [WOCBP]) must agree to use highly effective methods of contraception during the study and for at least 8 weeks after the last dose of study treatment. WOCBP must have a negative urine pregnancy test in the week prior to the first administration of treatment in this OLE study (Week 0). Female participant of childbearing potential must refrain from donating oocytes during the study and for at least 8 weeks after the last dose of study treatment. NOTE: These precautions for contraception in WOCBP are required for 21 weeks after the last dose of study treatment in the parental study M1095-PsA-302, in case of study drug discontinuations occurring during the first 9 weeks of OLE. Additional precautions in WOCBP may also be required due to the use of any other concomitant medications.
- 5. Male participants must be willing to use a condom when sexually active with a partner of childbearing potential during the study and for at least 8 weeks after the last dose of study treatment, unless surgically sterile. Male participants must also agree to refrain from donating sperm during the study and for at least 8 weeks after the last dose of study treatment.
- 6. Participants are considered reliable and capable of adhering to the protocol, visit schedule, and medication intake, according to the judgment of the investigator.
- 7. Participants are able to understand and provide signed informed consent, per local regulations and guidelines.
Exclusion criteria 5
- 1. Participants who met any of the discontinuation criteria of the parental study at the time of enrollment in this OLE study.
- 2. Participants who have ongoing or planned use of one or more of the prohibited PsA or non-PsA treatments specified in this protocol.
- 3. Participants who plan to participate in another interventional study for a drug or device during this study.
- 4. Participants who were unblinded during the parental study.
- 5. Participant noncompliance to the parental study (significant violation of protocol requirements or any other instances as per investigator’s judgement).
Endpoints
Primary and secondary outcome measures (English text)
Primary endpoints 6
- Treatment-emergent adverse events (TEAEs)
- Serious adverse events (SAEs)
- TEAEs leading to study withdrawal
- Adverse events of special interest (AESIs)
- Vital signs, and electrocardiogram (ECG) results
- Abnormal laboratory parameters (hematology, clinical chemistry)
Investigational products
Investigational medicinal products (IMPs), comparators, placebo, auxiliary
Test 1
PRD10271601 · Product
- Active substance
- Sonelokimab
- Pharmaceutical form
- INJECTION
- Route of administration
- SUBCUTANEOUS INJECTION
- Max daily dose
- 120.00 mg milligram(s)
- Max total dose
- 1320.00 mg milligram(s)
- Max treatment duration
- 48 Week(s)
- Authorisation status
- Not Authorised
- MA holder
- MOONLAKE IMMUNOTHERAPEUTICS AG
- Paediatric formulation
- No
- Orphan designation
- No
Sponsors and contacts
Sponsor organisations, regulatory contacts, third parties
MoonLake Immunotherapeutics AG
- Sponsor organisation
- MoonLake Immunotherapeutics AG
- Address
- Dorfstrasse 29
- City
- Zug
- Postcode
- 6300
- Country
- Switzerland
Scientific contact point
- Organisation
- MoonLake Immunotherapeutics AG
- Contact name
- Clinical Trial Information Point
Public contact point
- Organisation
- MoonLake Immunotherapeutics AG
- Contact name
- Clinical Trial Information Point
Third parties 3
| Organisation | City, country | Duties |
|---|---|---|
| Icon Clinical Research Limited ORG-100008322
|
Dublin 18, Ireland | Other |
| Veramed Limited ORG-100048461
|
Twickenham, United Kingdom | Code 10 |
| PRA Hellas CRO A.E. ORG-100048208
|
Nea Ionia, Greece | Other |
Locations
16 EU/EEA countries · 148 investigational sites
By country
| Country | MS status | Planned subjects | Sites |
|---|---|---|---|
| Bulgaria | Authorised, recruitment pending | 48 | 13 |
| Croatia | Authorised, recruitment pending | 5 | 2 |
| Czechia | Authorised, recruitment pending | 67 | 11 |
| Estonia | Authorised, recruitment pending | 50 | 3 |
| Finland | Authorised, recruitment pending | 3 | 1 |
| France | Authorised, recruitment pending | 11 | 11 |
| Germany | Authorised, recruitment pending | 47 | 10 |
| Greece | Authorised, recruitment pending | 5 | 3 |
| Hungary | Authorised, recruitment pending | 62 | 12 |
| Latvia | Authorised, recruitment pending | 28 | 2 |
| Lithuania | Authorised, recruitment pending | 11 | 4 |
| Poland | Authorised, recruitment pending | 500 | 46 |
| Portugal | Authorised, recruitment pending | 6 | 6 |
| Romania | Authorised, recruitment pending | 25 | 5 |
| Slovakia | Authorised, recruitment pending | 35 | 4 |
| Spain | Authorised, recruitment pending | 45 | 15 |
| Rest of world
Argentina, Chile, United Kingdom, Mexico, Canada, Georgia, United States, Serbia, Colombia
|
— | 612 | — |
Investigational sites
Results and documents
Annex IV summary of results, Annex V layperson summary, and all documents registered in CTIS for this trial
Documents 92 files
Public protocol annexes, IB summaries, regulatory submissions and post-authorisation documents registered in CTIS.
| Type | Title | Version |
|---|---|---|
| Protocol (for publication) | D1_Protocol_2025-522471-28-00_Greek_redacted | 2.1 EU |
| Protocol (for publication) | D1_Protocol_2025-522471-28-00_redacted | 2.1 EU |
| Recruitment arrangements (for publication) | K1_BG_Recruitment Procedure_Bulgarian | 1.0 |
| Recruitment arrangements (for publication) | K1_CZ_Recruitment Procedure_Bilingual | 1-0 |
| Recruitment arrangements (for publication) | K1_DE_Recruitment Procedure | 1.0 |
| Recruitment arrangements (for publication) | K1_EE_Recruitment Procedure | 1.0 |
| Recruitment arrangements (for publication) | K1_EL_Recruitment Procedure | 1.0 |
| Recruitment arrangements (for publication) | K1_ES_Recruitment Procedure | 1.0 |
| Recruitment arrangements (for publication) | K1_FI_Recruitment Procedure_Finnish | 1.1 |
| Recruitment arrangements (for publication) | K1_FR_Recruitment Procedure_Bilingual | 1.0 |
| Recruitment arrangements (for publication) | K1_HR_Recruitment Procedure Template | 1.0 |
| Recruitment arrangements (for publication) | K1_HU_Recruitment Procedure_Recruit-ICF Process | 1.0 |
| Recruitment arrangements (for publication) | K1_LT_Recruitment Procedure | 1.0 |
| Recruitment arrangements (for publication) | K1_LV_Recruitment Procedure | 1.0 |
| Recruitment arrangements (for publication) | K1_PL_Recruitment Procedure_Polish | 1.1 |
| Recruitment arrangements (for publication) | K1_PT_Recruitment Procedure | 1.0 |
| Recruitment arrangements (for publication) | K1_RO_Recruitment Procedure | 1.0 |
| Recruitment arrangements (for publication) | K1_SK_Recruitment Procedure | 1.1 |
| Subject information and informed consent form (for publication) | L1_BG_SIS-ICF_Main_Bulgarian_redacted | 1.1 |
| Subject information and informed consent form (for publication) | L1_BG_SIS-ICF_Main_redacted | 1.1 |
| Subject information and informed consent form (for publication) | L1_BG_SIS-ICF_Pregnant Partner_Bulgarian_redacted | 1.0 |
| Subject information and informed consent form (for publication) | L1_BG_SIS-ICF_Pregnant Partner_redacted | 1.0 |
| Subject information and informed consent form (for publication) | L1_CZ_SIS-ICF_Data Privacy_Czech_redacted | 1.1 |
| Subject information and informed consent form (for publication) | L1_CZ_SIS-ICF_Greenphire_Czech | 1.0 |
| Subject information and informed consent form (for publication) | L1_CZ_SIS-ICF_Main_Czech_redacted | 1.2 |
| Subject information and informed consent form (for publication) | L1_CZ_SIS-ICF_Pregnant Partner_Czech_redacted | 1.0 |
| Subject information and informed consent form (for publication) | L1_DE_SIS-ICF_Greenphire_German | 1.0 |
| Subject information and informed consent form (for publication) | L1_DE_SIS-ICF_Main_German_redacted | 1.1 |
| Subject information and informed consent form (for publication) | L1_DE_SIS-ICF_Pregnancy_German_redacted | 1.0 |
| Subject information and informed consent form (for publication) | L1_EE_SIS-ICF_Main_Estonian_redacted | 1.5 |
| Subject information and informed consent form (for publication) | L1_EE_SIS-ICF_Main_Russian_redacted | 1.5 |
| Subject information and informed consent form (for publication) | L1_EE_SIS-ICF_Pregnant Partner_Estonian_redacted | 1.1 |
| Subject information and informed consent form (for publication) | L1_EE_SIS-ICF_Pregnant Partner_Russian_redacted | 1.1 |
| Subject information and informed consent form (for publication) | L1_EL_SIS-ICF_Main_Greek_redacted | 1.2 |
| Subject information and informed consent form (for publication) | L1_EL_SIS-ICF_Pregnant Partner_Greek_redacted | 1.0 |
| Subject information and informed consent form (for publication) | L1_ES_SIS ICF_Main_Spanish_redacted | 1.4 |
| Subject information and informed consent form (for publication) | L1_ES_SIS ICF_Preg Partner_spanish_redacted | 1.0 |
| Subject information and informed consent form (for publication) | L1_FI_SIS-ICF_Adults_Finnish_redacted | 2.0 |
| Subject information and informed consent form (for publication) | L1_FI_SIS-ICF_Pregnant Partner_Finnish_redacted | 2.0 |
| Subject information and informed consent form (for publication) | L1_FR_SIS-ICF_Greenphire_French_redacted | 2.0 |
| Subject information and informed consent form (for publication) | L1_FR_SIS-ICF_Main_French_redacted | 2.1 |
| Subject information and informed consent form (for publication) | L1_FR_SIS-ICF_Pregnant Partner_French_redacted | 1.0 |
| Subject information and informed consent form (for publication) | L1_HR_SIS-ICF_Greenphire_Croatian | 1.0 |
| Subject information and informed consent form (for publication) | L1_HR_SIS-ICF_Main_Croatian_redacted | 1.4 |
| Subject information and informed consent form (for publication) | L1_HR_SIS-ICF_Pregnant Participant_Croatian_redacted | 1.0 |
| Subject information and informed consent form (for publication) | L1_HR_SIS-ICF_Pregnant Partner_Croatian_redacted | 1.0 |
| Subject information and informed consent form (for publication) | L1_HU_SIS-ICF_Main_Hungarian_redacted | 1.3 |
| Subject information and informed consent form (for publication) | L1_HU_SIS-ICF_Pregnant Partner_Hungarian_redacted | 1.0 |
| Subject information and informed consent form (for publication) | L1_LT_SIS ICF_Main_Lithuanian_redacted | 1.5 |
| Subject information and informed consent form (for publication) | L1_LT_SIS ICF_Pregnant Partner_Lithuanian_redacted | 1.3 |
| Subject information and informed consent form (for publication) | L1_LV_SIS-ICF_Main_Latvian_redacted | 1.3 |
| Subject information and informed consent form (for publication) | L1_LV_SIS-ICF_Main_Russian_redacted | 1.3 |
| Subject information and informed consent form (for publication) | L1_LV_SIS-ICF_Pregnant Partner_Latvian_redacted | 1.0 |
| Subject information and informed consent form (for publication) | L1_LV_SIS-ICF_Pregnant Partner_Russian_redacted | 1.0 |
| Subject information and informed consent form (for publication) | L1_PL_SIS-ICF_Main_Polish_redacted | 1.5 |
| Subject information and informed consent form (for publication) | L1_PL_SIS-ICF_Pregnancy Data Collection_Polish_redacted | 1.1 |
| Subject information and informed consent form (for publication) | L1_PT_SIS-ICF_Main_Portuguese_redacted | 1.3 |
| Subject information and informed consent form (for publication) | L1_PT_SIS-ICF_Pregnancy_Portuguese_redacted | 1.1 |
| Subject information and informed consent form (for publication) | L1_RO_SIS-ICF_Main_Redacted | 1.5 |
| Subject information and informed consent form (for publication) | L1_RO_SIS-ICF_Main_Romanian_Redacted | 1.5 |
| Subject information and informed consent form (for publication) | L1_RO_SIS-ICF_Pregnant Partner_Redacted | 1.1 |
| Subject information and informed consent form (for publication) | L1_RO_SIS-ICF_Pregnant Partner_Romanian_Redacted | 1.1 |
| Subject information and informed consent form (for publication) | L1_SK_SIS-ICF_Main_Slovak_redacted | 2.0 |
| Subject information and informed consent form (for publication) | L1_SK_SIS-ICF_Pregnant Partner_Slovak_redacted | 2.0 |
| Subject information and informed consent form (for publication) | L1_SK_SIS-ICF_Privacy_Slovak_redacted | 2.0 |
| Subject information and informed consent form (for publication) | L2_HU_Other Subject Material_List of Submitted Documents_bilingual_redacted | N/A |
| Synopsis of the protocol (for publication) | D1_Lay Protocol Summary_2025-522471-28-00 | 1.0 |
| Synopsis of the protocol (for publication) | D1_Lay Protocol Summary_2025-522471-28-00_Bulgarian | 1.0 |
| Synopsis of the protocol (for publication) | D1_Lay Protocol Summary_2025-522471-28-00_Croatian | 1.0 |
| Synopsis of the protocol (for publication) | D1_Lay Protocol Summary_2025-522471-28-00_Czech | 1.0 |
| Synopsis of the protocol (for publication) | D1_Lay Protocol Summary_2025-522471-28-00_Estonian | 1.0 |
| Synopsis of the protocol (for publication) | D1_Lay Protocol Summary_2025-522471-28-00_French | 1.0 |
| Synopsis of the protocol (for publication) | D1_Lay Protocol Summary_2025-522471-28-00_Greek | 1.0 |
| Synopsis of the protocol (for publication) | D1_Lay Protocol Summary_2025-522471-28-00_Hungarian | 1.0 |
| Synopsis of the protocol (for publication) | D1_Lay Protocol Summary_2025-522471-28-00_Latvian | 1.0 |
| Synopsis of the protocol (for publication) | D1_Lay Protocol Summary_2025-522471-28-00_Lithuanian | 1.0 |
| Synopsis of the protocol (for publication) | D1_Lay Protocol Summary_2025-522471-28-00_Polish | 1.0 |
| Synopsis of the protocol (for publication) | D1_Lay Protocol Summary_2025-522471-28-00_Portuguese | 1.0 |
| Synopsis of the protocol (for publication) | D1_Lay Protocol Summary_2025-522471-28-00_Romanian | 1.0 |
| Synopsis of the protocol (for publication) | D1_Lay Protocol Summary_2025-522471-28-00_Slovak | 1.0 |
| Synopsis of the protocol (for publication) | D1_Protocol Synopsis_2025-522471-28-00_Bulgarian_redacted | 2.1 EU |
| Synopsis of the protocol (for publication) | D1_Protocol Synopsis_2025-522471-28-00_Croatian_redacted | 2.1 EU |
| Synopsis of the protocol (for publication) | D1_Protocol Synopsis_2025-522471-28-00_Czech_redacted | 2.1 EU |
| Synopsis of the protocol (for publication) | D1_Protocol Synopsis_2025-522471-28-00_French_redacted | 2.1 EU |
| Synopsis of the protocol (for publication) | D1_Protocol Synopsis_2025-522471-28-00_Greek_redacted | 2.1 EU |
| Synopsis of the protocol (for publication) | D1_Protocol Synopsis_2025-522471-28-00_Hungarian_redacted | 2.1 EU |
| Synopsis of the protocol (for publication) | D1_Protocol Synopsis_2025-522471-28-00_Latvian_redacted | 2.1 EU |
| Synopsis of the protocol (for publication) | D1_Protocol Synopsis_2025-522471-28-00_Lithuanian_redacted | 2.1 EU |
| Synopsis of the protocol (for publication) | D1_Protocol Synopsis_2025-522471-28-00_Portuguese_redacted | 2.1 EU |
| Synopsis of the protocol (for publication) | D1_Protocol Synopsis_2025-522471-28-00_redacted | 2.1 EU |
| Synopsis of the protocol (for publication) | D1_Protocol Synopsis_2025-522471-28-00_Slovak_redacted | 2.1 EU |
| Synopsis of the protocol (for publication) | D1_Protocol Synopsis_2025-522471-28-00_Spanish_redacted | 2.1 EU |
Application history
2 submissions — initial application plus substantial / non-substantial modifications
| # | Type | Code | Submitted | Reference MS | Conclusion | Decision date |
|---|---|---|---|---|---|---|
| 1 | INITIAL | IN | 2025-10-31 | Finland | Acceptable 2026-02-25
|
2026-02-25 |
| 2 | NON SUBSTANTIAL MODIFICATION | NSM-1 | 2026-03-09 | Acceptable 2026-02-25
|
2026-03-09 |