Overview
Sponsor-declared trial summary
Autoimmune disease
To evaluate the efficacy and safety of zetomipzomib in patients with active Class III or IV (with or without Class V; Class III/IV +/-V) LN and for those with pure Class V LN
Key facts
- Sponsor
- Kezar Life Sciences Inc.
- Participant type
- Patients
- Age range
- 18-64 years, 65+ years
- Gender
- Male and Female
- Therapeutic area
- Diseases [C] - Immune System Diseases [C20]
- Trial duration
- 25 Oct 2023 → 8 Nov 2024
- Decision date (initial)
- 2023-10-02
- Transition trial
- No
- Low-intervention
- No
- Rare-disease indication
- No
- Vulnerable population
- Yes
- Funding sources
- Kezar Life Sciences, Inc.
External identifiers
- EU CT number
- 2022-502227-22-00
- ClinicalTrials.gov
- NCT05781750
Trial design
CTIS Part I — objectives, methods, condition coding
Main objective
Scope: Safety, Efficacy
To evaluate the efficacy and safety of zetomipzomib in patients with active Class III or IV (with or without Class V; Class III/IV +/-V) LN and for those with pure Class V LN
Secondary objectives 1
- To evaluate zetomipzomib compared with placebo in patients with active Class III/IV +/-V LN on background MMF or equivalent, and corticosteroids based upon current guideline-driven standard of care
Conditions and MedDRA coding
Autoimmune disease
| Version | Level | Code | Term | System organ class |
|---|---|---|---|---|
| 20.0 | LLT | 10029142 | Nephritis systemic lupus erythematosus | 10038359 |
| 21.1 | PT | 10025140 | Lupus nephritis | 100000004857 |
Study design 1 period
| # | Title | Allocation | Blinding | Roles blinded | Arms |
|---|---|---|---|---|---|
| 1 | tbc tbc
|
Randomised Controlled | Double | [{"id":50652,"code":1,"name":"Subject"},{"id":50651,"code":3,"name":"Monitor"},{"id":50653,"code":2,"name":"Investigator"}] | Experimental: zetomipzomib 30 mg + standard-of-care: Initial 30 mg dose of zetomipzomib, followed by weekly doses of 30 mg zetomipzomib through 52 weeks of the treatment period. Experimental: zetomipzomib 60 mg + standard-of-care: Initial 30 mg dose of zetomipzomib, followed by weekly doses of 60 mg zetomipzomib through 52 weeks of the treatment period. Placebo Comparator: placebo + standard-of-care: Initial 30 mg dose of placebo, followed by weekly doses (30 mg or 60 mg) of placebo through 52 weeks of the treatment period. |
Regulatory references
- Scientific advice from competent authorities
- European Medicines Agency
| EU CT number | Title | Sponsor |
|---|---|---|
| 2020-004382-39 | An Open-label Extension to the Phase 2 Randomized, Double-blind, Placebo-controlled, Crossover Multicenter Study to Evaluate the Safety and Efficacy of KZR-616 in the Treatment of Patients with Active Polymyositis or Dermatomyositis . |
Eligibility criteria
Principal inclusion / exclusion criteria as submitted by sponsor
Inclusion criteria 1
- Body mass index of ≥18 kg/m^2 eGFR ≥30 mL/min/1.73 m^2 Unequivocally positive ANA test result and/or a positive anti-dsDNA serum antibody test Diagnosis of LN according to 2003 or 2018 ISN/RPS criteria and confirmed by renal biopsy performed within 12 months prior to Screening. UPCR ≥1.0 (Class III/IV +/-V) or UPCR ≥2.0 (Class V) Adequate hematologic, hepatic, and renal function
Exclusion criteria 1
- 1.Current or medical history of: - Central nervous system manifestations of SLE - Overlapping autoimmune condition that may affect study assessments/outcomes - Antiphospholipid syndrome with history of thromboembolic event of within the 52 weeks prior to Screening - Thrombocytopenia or at high risk for developing clinically significant bleeding or organ dysfunction requiring therapies (i.e., plasmapheresis or acute blood or platelet transfusions - Solid organ transplant or planned transplant during study - Malignancy of any type, with exceptions for non-melanoma skin cancers and certain cancers >5 years ago 2. Has received dialysis within the 52 weeks prior to Screening 3. Positive test at Screening for HIV, hepatitis B/C 4. Known intolerance to MMF or equivalent and corticosteroids
Endpoints
Primary and secondary outcome measures (English text)
Primary endpoints 1
- The primary efficacy endpoint is the proportion of patients achieving CRR at Week 37.
Secondary endpoints 3
- The key secondary efficacy endpoints will evaluate the proportion of patients achieving the following: • PRR at Week 25, Week 37, and Week 53 • CRR at Week25 and Week 53 The other secondary efficacy endpoints include the following: • Percentage change from Baseline in UPCR by visit • Time to event (CRR, PRR, death or renal event)
- • Proportion of patients achieving CRR (at Weeks 25, 37, and 53) with successful taper of prednisone or equivalent by Week 17 • Proportion of patients achieving CRR (at Weeks 25, 37, and 53) with no use of prednisone or equivalent during the 8 weeks prior to the renal response assessment • Proportion of patients with UPCR ≤0.5 at Weeks 13, 25, 37, and 53
- • Proportion of patients achieving CRR with UPCR ≤ upper limit of normal (ULN) at Weeks 25, 37, and 53 • Change from Baseline in clinical Systemic Lupus Erythematosus Disease Activity Index 2000 (SLEDAI-2K) score, excluding complement and anti-dsDNA components • Change from Baseline in EuroQol 5-Dimension 5-Level (EQ-5D-5L)
Investigational products
Investigational medicinal products (IMPs), comparators, placebo, auxiliary
Test 5
-
V07AB · Product
- Pharmaceutical form
- PHF00017MIG
- Route of administration
- SUBCUTANEOUS INJECTION
- Max daily dose
- 0.92 ml millilitre(s)
- Max total dose
- 0.92 ml millilitre(s)
- Max treatment duration
- 52 Week(s)
- Authorisation status
- Authorised
- ATC code
- V07AB — SOLVENTS AND DILUTING AGENTS, INCL. IRRIGATING SOLUTIONS
- Marketing authorisation
- -
- Paediatric formulation
- No
- Orphan designation
- No
- Modified vs. Marketing Authorisation
- No
Sterile Water For Injection, 0.92 mL (Prefilled Syringe)
PRD10367627 · Product
- Active substance
- Water for Injection
- Pharmaceutical form
- SOLVENT FOR PARENTERAL USE
- Route of administration
- SUBCUTANEOUS INJECTION
- Max daily dose
- 0.92 ml millilitre(s)
- Max total dose
- 0.92 ml millilitre(s)
- Max treatment duration
- 52 Week(s)
- Authorisation status
- Not Authorised
- MA holder
- KEZAR LIFE SCIENCES, INC.
- Paediatric formulation
- No
- Orphan designation
- No
Myfenax 500 mg film-coated tablets
PRD8167789 · Product
- Active substance
- Mycophenolate Mofetil
- Pharmaceutical form
- FILM-COATED TABLET
- Route of administration
- ORAL USE
- Max daily dose
- 3 g gram(s)
- Max total dose
- 1022 g gram(s)
- Max treatment duration
- 52 Week(s)
- Authorisation status
- Authorised
- ATC code
- L04AA06 — MYCOPHENOLIC ACID
- Marketing authorisation
- EU/1/07/438/010
- MA holder
- TEVA B.V
- MA country
- EU
- Paediatric formulation
- No
- Orphan designation
- No
- Modified vs. Marketing Authorisation
- No
Myfenax 500 mg film-coated tablets
PRD3926751 · Product
- Active substance
- Mycophenolate Mofetil
- Pharmaceutical form
- FILM-COATED TABLET
- Route of administration
- ORAL USE
- Max daily dose
- 3 g gram(s)
- Max total dose
- 1022 g gram(s)
- Max treatment duration
- 52 Week(s)
- Authorisation status
- Authorised
- ATC code
- L04AA06 — MYCOPHENOLIC ACID
- Marketing authorisation
- EU/1/07/438/005
- MA holder
- TEVA B.V
- MA country
- Iceland
- Paediatric formulation
- No
- Orphan designation
- No
- Modified vs. Marketing Authorisation
- No
PRD10367626 · Product
- Active substance
- Zetomipzomib
- Substance synonyms
- 4,5-Anhydro-1-(1-cyclopenten-1-yl)-1,2-dideoxy-4-C-methyl-2-((N-(2-(4-morpholinyl)acetyl)-L-alanyl-(βR)-β-hydroxy-O-methyl-L-tyrosyl)amino)-D-erythro-3-pentulose, KZR-616, (2S,3R)-N-[(2S)-3-(cyclopent-1-en-1-yl)-1-[(2R)-2-methyloxiran-2-yl]-1-oxopropan-2-yl]-3-hydroxy-3-(4-methoxyphenyl)-2-[(2S)-2-[2-(morpholin-4-yl)acetamido]propanamido]propanamide
- Pharmaceutical form
- SOLUTION FOR INJECTION
- Route of administration
- SUBCUTANEOUS INJECTION
- Max daily dose
- 60 mg milligram(s)
- Max total dose
- 3120 mg milligram(s)
- Max treatment duration
- 52 Week(s)
- Authorisation status
- Not Authorised
- MA holder
- KEZAR LIFE SCIENCES, INC.
- Paediatric formulation
- No
- Orphan designation
- Yes
- Orphan designation number
- 18-6720 & 18-6635
Placebo 1
sterilized lyophilized powder with no active
N/A · Product
- Other product name
- N/A
- Pharmaceutical form
- N/A
- ATC code
- N/A — N/A
- Marketing authorisation
- N/A
- MA holder
- N/A
- MA country
- Iceland
- Paediatric formulation
- No
Auxiliary 3
-
H02AB · Product
- Pharmaceutical form
- PHF00231MIG
- Route of administration
- ORAL USE
- Max daily dose
- 40 mg milligram(s)
- Max total dose
- 3815 mg milligram(s)
- Max treatment duration
- 52 Week(s)
- Authorisation status
- Authorised
- ATC code
- H02AB — GLUCOCORTICOIDS
- Marketing authorisation
- -
- Paediatric formulation
- No
- Orphan designation
- No
- Modified vs. Marketing Authorisation
- No
SUB08872MIG · Substance
- Active substance
- Methylprednisolone
- Pharmaceutical form
- POWDER FOR SOLUTION FOR INJECTION
- Route of administration
- INTRAVENOUS BOLUS INJECTION/IV INFUSION
- Max daily dose
- 3 g gram(s)
- Max total dose
- 3 g gram(s)
- Max treatment duration
- 1 Day(s)
- Authorisation status
- Authorised
- ATC code
- - — -
- Marketing authorisation
- -
- Paediatric formulation
- No
- Orphan designation
- No
- Modified vs. Marketing Authorisation
- No
PRD3680541 · Product
- Active substance
- Methylprednisolone Sodium Succinate
- Pharmaceutical form
- SOLUTION FOR INJECTION/INFUSION
- Route of administration
- INTRAVENOUS BOLUS INJECTION/IV INFUSION
- Max daily dose
- 3 g gram(s)
- Max total dose
- 3 g gram(s)
- Max treatment duration
- 1 Day(s)
- Authorisation status
- Authorised
- ATC code
- H02AB04 — METHYLPREDNISOLONE
- Marketing authorisation
- 89739.00.00
- MA holder
- ACIS ARZNEIMITTEL GMBH
- MA country
- Germany
- Paediatric formulation
- No
- Orphan designation
- No
- Modified vs. Marketing Authorisation
- No
Sponsors and contacts
Sponsor organisations, regulatory contacts, third parties
Kezar Life Sciences Inc.
- Sponsor organisation
- Kezar Life Sciences Inc.
- Address
- 4000 Shoreline Court Suite 300
- City
- South San Francisco
- Postcode
- 94080-2005
- Country
- United States
Scientific contact point
- Organisation
- Kezar Life Sciences Inc.
- Contact name
- Clinical Operations
Public contact point
- Organisation
- Kezar Life Sciences Inc.
- Contact name
- Clinical Development
Third parties 15
| Organisation | City, country | Duties |
|---|---|---|
| PPD Global Ltd. ORG-100007531
|
Marousi, Greece | On site monitoring, Other |
| Primevigilance Limited ORG-100027742
|
Guildford, United Kingdom | Other, Code 8 |
| Fisher Clinical Services GmbH ORG-100017323
|
Rheinfelden (Baden), Germany | Other |
| Clinical Ink Inc. ORG-100042433
|
Horsham, United States | Other |
| Jumo Health USA Inc. ORG-100044054
|
New Haven, United States | Other |
| Scout Clinical ORG-100042228
|
Dallas, United States | Other |
| PPD Development Ireland Limited ORG-100007309
|
Athlone, Ireland | Other |
| PPD Development LP ORG-100011560
|
Wilmington, United States | On site monitoring, Code 12, Code 13, Code 14, Laboratory analysis, Code 5, Data management, E-data capture |
| Signant Health LLC ORG-100040732
|
Blue Bell, United States | Interactive response technologies (IRT) |
| Fisher Clinical Services GmbH ORG-100012942
|
Allschwil, Switzerland | Other |
| Crisalis LLC ORG-100047297
|
Oklahoma City, United States | Other |
| MARKEN Germany GmbH ORG-100017196
|
Kelsterbach, Germany | Other |
| Fisher Clinical Services UK Limited ORG-100012049
|
Horsham, United Kingdom | Other |
| PPD Global Central Labs ORG-100046496
|
Zaventem, Belgium | Other |
| Medidata Solutions Inc. ORG-100016256
|
New York, United States | Other |
Locations
7 EU/EEA countries · 37 investigational sites
By country
| Country | MS status | Planned subjects | Sites |
|---|---|---|---|
| Croatia | Ended | 6 | 3 |
| France | Ended | 8 | 4 |
| Germany | Ended | 6 | 2 |
| Greece | Ended | 10 | 5 |
| Italy | Ended | 22 | 8 |
| Portugal | Ended | 12 | 6 |
| Spain | Ended | 18 | 9 |
| Rest of world
South Africa, Serbia, Brazil, Canada, Singapore, Argentina, Israel, Taiwan, Australia, China, Turkey, Colombia, United States, United Kingdom, Korea, Republic of
|
— | 165 | — |
Investigational sites
Country notifications
Trial-start, recruitment-start, end and early-termination notifications submitted per Member State
| Country | Trial start | Trial end | Recruitment start | Recruitment end | Early termination |
|---|---|---|---|---|---|
| Croatia | 2023-11-16 | 2024-03-27 | 2024-09-24 | ||
| Greece | 2023-10-31 | 2024-01-18 | 2024-09-24 | ||
| Portugal | 2023-10-25 | ||||
| Spain | 2023-10-27 | 2024-04-23 | 2024-09-24 |
Oversight and notifications
Regulatory notifications under CTR Articles 38, 52, 53, 54 and 77
Temporary halts 4 · Art. 38 CTR
Temporary halt TH-50684
- Halt date
- 2024-09-24
- Member states concerned
- Greece
- Publication date
- 2024-10-09
- Reason
- Safety related (clinical or pre-clinical results)
- Follow-up measures
- The Sponsor has notified all study investigators and is in the process of notifying all relevant global regulatory authorities. Investigators and study teams have been instructed to continue to follow patients and perform all safety and efficacy procedures per the schedule of assessments.
- Benefit-risk balance changed
- Yes
- Treatment stopped
- Yes
Temporary halt TH-50681
- Halt date
- 2024-09-24
- Member states concerned
- Portugal
- Publication date
- 2024-10-09
- Reason
- Safety related (clinical or pre-clinical results)
- Follow-up measures
- The Sponsor has notified all study investigators and is in the process of notifying all relevant global regulatory authorities. Investigators and study teams have been instructed to continue to follow patients and perform all safety and efficacy procedures per the schedule of assessments.
- Benefit-risk balance changed
- Yes
- Treatment stopped
- Yes
Temporary halt TH-50679
- Halt date
- 2024-09-24
- Member states concerned
- Spain
- Publication date
- 2024-10-09
- Reason
- Safety related (clinical or pre-clinical results)
- Follow-up measures
- The Sponsor has notified all study investigators and is in the process of notifying all relevant global regulatory authorities. Investigators and study teams have been instructed to continue to follow patients and perform all safety and efficacy procedures per the schedule of assessments.
- Benefit-risk balance changed
- Yes
- Treatment stopped
- Yes
Temporary halt TH-50686
- Halt date
- 2024-09-24
- Member states concerned
- Croatia
- Publication date
- 2024-10-09
- Reason
- Safety related (clinical or pre-clinical results)
- Follow-up measures
- The Sponsor has notified all study investigators and is in the process of notifying all relevant global regulatory authorities. Investigators and study teams have been instructed to continue to follow patients and perform all safety and efficacy procedures per the schedule of assessments.
- Benefit-risk balance changed
- Yes
- Treatment stopped
- Yes
Results and documents
Annex IV summary of results, Annex V layperson summary, and all documents registered in CTIS for this trial
Summary of results Art. 37(4) CTR
| Title | Submission date | Status | Type |
|---|---|---|---|
| Kezar_KZR-616-202_CSR Summary of results SUM-92755
|
2025-08-15T03:02:21 | Submitted | Summary of Results |
Layperson summary Annex V
| Title | Submission date | Status | Type |
|---|---|---|---|
| Summary of the results of the clinical trial | 2025-08-15T03:03:38 | Submitted | Laypersons Summary of Results |
Documents 11 files
Public protocol annexes, IB summaries, regulatory submissions and post-authorisation documents registered in CTIS.
| Type | Title | Version |
|---|---|---|
| Laypersons summary of results (for publication) | B1_Kezar_KZR-616-202_CSR Summary_Cover Letter | N/A |
| Laypersons summary of results (for publication) | D1_Kezar_KZR 616-202_CSR Layperson Summary_2022-502227-22-00_DE_Public | N/A |
| Laypersons summary of results (for publication) | D1_Kezar_KZR 616-202_CSR Layperson Summary_2022-502227-22-00_EN_Public | N/A |
| Laypersons summary of results (for publication) | D1_Kezar_KZR 616-202_CSR Layperson Summary_2022-502227-22-00_ES_Public | N/A |
| Laypersons summary of results (for publication) | D1_Kezar_KZR 616-202_CSR Layperson Summary_2022-502227-22-00_FR_Public | N/A |
| Laypersons summary of results (for publication) | D1_Kezar_KZR 616-202_CSR Layperson Summary_2022-502227-22-00_GR_Public | N/A |
| Laypersons summary of results (for publication) | D1_Kezar_KZR 616-202_CSR Layperson Summary_2022-502227-22-00_HR_Public | N/A |
| Laypersons summary of results (for publication) | D1_Kezar_KZR 616-202_CSR Layperson Summary_2022-502227-22-00_IT_Public | N/A |
| Laypersons summary of results (for publication) | D1_Kezar_KZR 616-202_CSR Layperson Summary_2022-502227-22-00_PT_Public | N/A |
| Summary of results (for publication) | B1_Kezar_KZR-616-202_CSR Summary_Cover Letter | N/A |
| Summary of results (for publication) | D1_Kezar_KZR 616-202_CSR Summary_2022-502227-22-00_Public | N/A |
Application history
2 submissions — initial application plus substantial / non-substantial modifications
| # | Type | Code | Submitted | Reference MS | Conclusion | Decision date |
|---|---|---|---|---|---|---|
| 1 | INITIAL | IN | 2023-06-09 | Spain | Acceptable with conditions 2023-09-15
|
2023-09-15 |
| 2 | SUBSTANTIAL MODIFICATION | SM-2 | 2024-01-29 | Spain | Acceptable 2024-04-19
|
2024-04-19 |