NCT07483827

Brief Summary

This study is the first time the new medicine CPV-104 is being tested in people. CPV-104 is designed to regulate the complement system, which can be overactive in diseases such as C3 glomerulopathy (C3G), an ultra-rare kidney disorder. The study includes healthy adults and adult patients with C3G to assess safety, tolerability, how the body processes the medicine, and whether the immune system reacts to it. The study is divided in two part; in Part 1 (SAD), healthy volunteers receive one IV dose of CPV-104 or a placebo while in Part 2 (MAD) patients with C3G receive four weekly IV doses of CPV-104 (no placebo). Participants will have close monitoring, including side-effect checks, blood and urine tests, ECGs, vital signs, and blood samples to measure drug levels and antibodies. For those with C3G, researchers will also observe kidney function, although the main goal is safety, not testing effectiveness. A Safety Review Committee will regularly review results to ensure it is safe to continue to the next dose or study group.

Trial Health

88
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
39

participants targeted

Target at P50-P75 for phase_1

Timeline
2mo left

Started Jun 2025

Geographic Reach
11 countries

16 active sites

Status
recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Progress83%
Jun 2025Nov 2026

Study Start

First participant enrolled

June 26, 2025

Completed
8 months until next milestone

First Submitted

Initial submission to the registry

March 5, 2026

Completed
14 days until next milestone

First Posted

Study publicly available on registry

March 19, 2026

Completed
8 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

November 1, 2026

Expected
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

November 1, 2026

Last Updated

July 31, 2026

Status Verified

July 1, 2026

Enrollment Period

1.4 years

First QC Date

March 5, 2026

Last Update Submit

July 30, 2026

Conditions

Keywords

CPV-104C3GComplement Systemkidney diseasekidneyFactor H

Outcome Measures

Primary Outcomes (1)

  • Incidence of severe drug reactions (severe ADRs) and serious adverse drug reactions (SADRs)

    Up to Day 29 for Part 1 - SAD-HV and up to Day 50 for Part 2 - MAD-C3G

Secondary Outcomes (31)

  • Incidence of treatment-emergent adverse events (TEAEs), serious adverse events (SAEs), and adverse drug reactions (ADRs)

    Up to Day 29 for Part 1 - SAD-HV and up to Day 50 for Part 2 - MAD-C3G

  • Change from baseline in patient reported parameters (patients with C3G only)

    Up to Day 50

  • Change from baseline in physician global assessment (patients with C3G only)

    Up to Day 50

  • Change from baseline in safety laboratory parameters, physical examinations, vital signs, and 12-lead ECG parameters

    Up to Day 29 for Part 1 - SAD-HV and up to Day 50 for Part 2 - MAD-C3G

  • Cmax of CPV-104 after single dose (SAD-HV)

    Up to Day 29

  • +26 more secondary outcomes

Other Outcomes (2)

  • Change from baseline in estimated glomerular filtration rate (eGFR)

    Up to Day 29 for Part 1 - SAD-HV and up to Day 50 for Part 2 - MAD-C3G

  • Change from baseline in urine protein-to-creatinine ratio (UPCR)

    Up to Day 29 for Part 1 - SAD-HV and up to Day 50 for Part 2 - MAD-C3G

Study Arms (2)

Part 1 - SAD-HV: Single ascending dose cohorts in healthy subjects

EXPERIMENTAL

Healthy volunteer subject cohorts randomized 4:2 receiving a single dose of CPV-104 or placebo. The first cohort consisting of three volunteers will receive CPV-104 only. Dose escalation will occur if CPV-104 or placebo is tolerated.

Drug: CPV-104/Placebo

Part 2 - MAD-C3G: Multiple ascending dose cohorts in C3G patients

EXPERIMENTAL

Patients to receive multiple ascending doses of CPV-104, dosed weekly over 28 days. Dose escalation will occur if CPV-104 is tolerated.

Drug: CPV-104

Interventions

CPV-104 or Placebo

Part 1 - SAD-HV: Single ascending dose cohorts in healthy subjects

CPV-104

Part 2 - MAD-C3G: Multiple ascending dose cohorts in C3G patients

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Participants must be at least 18 years old and no more than 50 years old, at the time of consent, and must be able to sign and date the informed consent form (ICF) themselves.

You may not qualify if:

  • Body weight within 50 kg for male/ 45 kg for female to 110 kg and BMI within the range 18 - 32 kg/m2 (inclusive).
  • Childbearing potential (CBP) participants should agree to use a highly effective method of contraception throughout the study and for 90 days after the last dose of the IMP.
  • CBP participants should agree not to donate oocytes or freeze for future use for the purposes of assisted reproduction during the study and for a period of 90 days after the last dose of the IMP. Male participants should agree not to donate sperm or freeze sperm for future use for the purposes of assisted reproduction during the study and for a period of 90 days after the last dose of the IMP.
  • CBP participants should have a negative pregnancy test at screening.
  • Participant provides written informed consent which includes compliance with the requirements and restrictions listed in the ICF and in this protocol.
  • Participant has a history of clinically significant disorders or diseases affecting the endocrine, gastrointestinal, cardiovascular, hematological, liver, immune, kidney, respiratory, reproductive, or neurological systems (such as stroke or epilepsy). Participants with a history of minor medical issues may be considered for the study at the investigator's discretion.
  • Participant has any medical or psychiatric condition that, in the opinion of the Investigator, could jeopardize or would compromise the study participant's ability to participate in this study.
  • Participant has a recent history of febrile illness or other evidence of a clinically significant active infection, within 14 days prior to screening.
  • Participant has a history of severe allergies (e.g. to medications, food, or latex) or has experienced an anaphylactic reaction to food or medicine.
  • Participant has a known hypersensitivity to any components of the IMP as stated in this protocol.
  • Alanine transaminase (ALT) or Aspartate aminotransferase (AST) \>1.5 x upper limit of normal (ULN).
  • Total Bilirubin \>1 x ULN, \> 1.5 x ULN if Gilbert's syndrome.
  • Current or chronic history of liver disease or known hepatic or biliary abnormalities (except for Gilbert's syndrome or asymptomatic gallstones).
  • Participant has received any complement modifying treatment within 6 months prior to the first dosing day.
  • Exposure to more than four new chemical entities within 12 months prior to the first dosing day.
  • +38 more criteria

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (17)

Medizinische Universität Wien

Vienna, Austria

RECRUITING

Cliniques universitaires Saint-Luc

Brussels, Belgium

RECRUITING

Fakultni Thomayerova nemocnice

Prague, Czechia

RECRUITING

Hôpital Européen Georges-Pompidou HEGP

Paris, France

RECRUITING

Centre Hospitalier Universitaire De Toulouse

Toulouse, France

RECRUITING

Laiko General Hospital Of Athens

Athens, Greece

RECRUITING

Pauls Stradins Clinical University Hospital

Riga, Latvia

RECRUITING

Vilnius University Hospital Santaros Klinikos

Vilnius, Lithuania

RECRUITING

Amsterdam UMC Stichting

Amsterdam, Netherlands

RECRUITING

Hospital Curry Cabral - Centro Hospitalar de Lisboa Central - ULS Sao José

Lisbon, Portugal

RECRUITING

University Clinical Center of Serbia

Belgrade, Serbia

NOT YET RECRUITING

Fundacio Puigvert

Barcelona, Spain

NOT YET RECRUITING

Hospital Universitario 12 De Octubre

Madrid, Spain

RECRUITING

Clinica Universidad De Navarra

Pamplona, Spain

RECRUITING

Hospital Universitario Virgen De La Macarena

Seville, Spain

RECRUITING

University Hospital Virgen Del Rocio S.L.

Seville, Spain

RECRUITING

Karolinska University Hospital

Huddinge, Sweden

RECRUITING

MeSH Terms

Conditions

Kidney Diseases

Condition Hierarchy (Ancestors)

Urologic DiseasesFemale Urogenital DiseasesFemale Urogenital Diseases and Pregnancy ComplicationsUrogenital DiseasesMale Urogenital Diseases

Study Officials

  • Bernd Jilma, Prof.

    Medical University of Vienna

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Study Design

Study Type
interventional
Phase
phase 1
Allocation
RANDOMIZED
Masking
TRIPLE
Who Masked
PARTICIPANT, INVESTIGATOR, OUTCOMES ASSESSOR
Purpose
TREATMENT
Intervention Model
SEQUENTIAL
Model Details: Part 1 - SAD-HV: Single ascending dose in healthy volunteers, Part 2 - MAD-C3G: Multiple ascending dose in C3G patients
Sponsor Type
INDUSTRY
Responsible Party
SPONSOR

Study Record Dates

First Submitted

March 5, 2026

First Posted

March 19, 2026

Study Start

June 26, 2025

Primary Completion (Estimated)

November 1, 2026

Study Completion (Estimated)

November 1, 2026

Last Updated

July 31, 2026

Record last verified: 2026-07

Data Sharing

IPD Sharing
Will share

Locations