A study to evaluate the safety and processing of RO7434656 by the body and the effects it has in healthy Chinese participants

ISRCTN ISRCTN85572126
DOI https://doi.org/10.1186/ISRCTN85572126
Secondary identifying numbers YA45226
Submission date
20/08/2024
Registration date
23/08/2024
Last edited
14/04/2025
Recruitment status
No longer recruiting
Overall study status
Completed
Condition category
Other
Prospectively registered
Protocol
Statistical analysis plan
Results
Individual participant data
Record updated in last year

Plain English summary of protocol

Background and study aims
Immunoglobulin A nephropathy (IgAN) is a disease in which IgA, a protein produced by the immune system, builds up and damages the filtering part of the kidney causing chronic kidney disease and kidney failure. This study is testing a medicine called RO7434656. It is being developed to treat IgAN. RO7434656 is an experimental medicine. This means health authorities (like the US Food and Drug Administration and European Medicines Agency) have not approved RO7434656 for the treatment of IgAN. This study aims to test the safety of RO7434656 (at different doses) and to understand what happens to RO7434656 once it is in the body.

Who can participate?
Healthy Chinese people aged 18-65 years. Participants may not be able to take part in this study if they have a history or presence of any significant diseases. People who are pregnant, or currently breastfeeding cannot take part in the study.

What does the study involve?
Participants will be screened to check if they are able to participate in the study. The screening period will take place for a maximum of 84 days before the start of treatment. Everyone who joins this study will be split into two groups randomly (like flipping a coin) to receive RO7434656, given an injection under the skin on Day 1 at two different doses. Participants will have an equal chance of being placed in either group. Participants will have regular blood tests and will be checked for unwanted effects throughout the study. This is an open-label study. This means everyone involved, including the participant and the study doctor, will know the study treatment the participant has been given. During the study, the study doctors will see the participants 7 times during the clinic visits. Participants will be admitted to the clinic 1 day before receiving the treatment (Day -1) and stay in the clinic until Day 4. Participants will have to visit the hospital regularly for up to 90 days. Study doctors will see how well the treatment is working and any unwanted effects participants may have. Total time of participation in the study will be about 6 months. Participants have the right to stop study treatment and leave the study at any time if they wish to do so.

What are the possible benefits and risks of participating?
Participants will not receive any benefits from taking part in the study. However, the information collected in the study can help treat future patients.
It may not be fully known at the time of the study how safe and how well the study treatment works. People interested in taking part will be informed about the risks and benefits, as well as any additional procedures or tests they may need to undergo. All details of the study will be described in an informed consent document. This includes information about possible effects and other options for treatment.
Participants may have unwanted effects of the drug used in this study. These unwanted effects can be mild to severe, even life-threatening, and vary from person to person. During this study, participants will have regular check-ups to see if there are any unwanted effects. Participants will be told about the known unwanted effects of RO7434656 and possible unwanted effects based on human and laboratory studies or knowledge of similar medicines. Possible unwanted effects include an increased risk of infections, abnormal liver tests, a decrease in the number of blood cells that help blood clot and kidney damage. RO7434656 will be given as an injection under the skin. Potential unwanted side effects include injection-site reactions like redness of the skin (erythema). The study medicine(s) may be harmful to an unborn baby. Women must take precautions to avoid exposing an unborn baby to the study treatment.

Where is the study run from?
F. Hoffmann-La Roche Ltd (Switzerland)

When is the study starting and how long is it expected to run for?
April 2024 to April 2025

Who is funding the study?
F. Hoffmann-La Roche Ltd (Switzerland)

Who is the main contact?
global.trial_information@roche.com

Contact information

Dr Clinical Trials
Public, Scientific, Principal Investigator

Building 1, Grenzacherstrasse 124
Basel
CH-4070
Switzerland

Phone + 41 (0)616878333
Email global.trial_information@roche.com

Study information

Study designPhase I interventional open-label randomized parallel-group study
Primary study designInterventional
Secondary study designRandomised parallel trial
Study setting(s)Hospital
Study typeTreatment
Scientific titleA Phase I, open-label, parallel-group study to investigate the pharmacokinetics, pharmacodynamics, safety, and tolerability of a single subcutaneous administration of RO7434656 in healthy adult Chinese participants
Study objectivesThe main purpose of this study is to determine the plasma pharmacokinetics (PK) of a single subcutaneous administration of RO7434656 in Chinese healthy adults.
Ethics approval(s)

Approved 26/06/2024, Peking University First Hospital Ethics Committee (Room 408, Administration Building, No. 74, Xishiku Street, Xicheng district, Peking University First Hospital, Beijing, 100034, China; +86 (0)10-661190259; bdyyec@163.com), ref: Nil known

Health condition(s) or problem(s) studiedHealthy volunteers
InterventionParticipants will be randomized to Group 1 or Group 2 in a 1:1 ratio to receive RO7434656. Randomization will be done based on the treatment list generated by independent representatives of the sponsor.

Group 1: Participants will receive a single low dose of RO7434656 as a subcutaneous (SC) injection on Day 1.
Group 2: Participants will receive a single high dose of RO7434656 as a SC injection on Day 1.
Intervention typeDrug
Pharmaceutical study type(s)Pharmacokinetic, Pharmacodynamic
PhasePhase I
Drug / device / biological / vaccine name(s)RO7434656
Primary outcome measurePlasma concentration and PK parameters of RO7434656 measured using blood samples collected at pre-dose and multiple timepoints post-dose from Day 1 to Day 90 of the Observation Period
Secondary outcome measures1. Change from baseline of plasma Factor B levels following subcutaneous administration of RO7434656 determined using plasma samples collected from Day 1 to Day 90 of the Observation Period
2. Number of participants with adverse events (AEs) and severity of AEs determined according to National Cancer Institute Common Terminology Criteria For Adverse Events (NCI CTCAE), Version 5.0 from Screening to Observation Period (up to approximately 174 days)
3. Number of participants with alanine aminotransferase (ALT) more than 3 * upper limit of normal, assessed using data from electronic case reported forms (eCRF) from Screening to end of Observation Period (up to approximately 174 days)
4. Number of participants with meningococcal and pneumococcal infections, assessed using data from eCRF from Screening to the end of the Observation Period (up to approximately 174 days)
5. Number of participants with injection-site reactions and severity, assessed using data collected in the eCRF from Day 1 to Day 90
Overall study start date19/04/2024
Completion date10/04/2025

Eligibility

Participant type(s)Healthy volunteer
Age groupAdult
Lower age limit18 Years
Upper age limit65 Years
SexBoth
Target number of participants14
Key inclusion criteria1. Overtly healthy and has no evidence of active or chronic disease as determined by detailed medical and surgical history and the results of a physical examination, vital signs, 12 lead electrocardiogram (ECG), or clinical laboratory tests.
2. Body weight greater than or equal to 50 kilograms (kg) and a body mass index within the range 18.5 to 28.0 kilogram per meter squared (kg/m2)
3. Vaccination against Neisseria meningitidis within 5 years prior to initiation of study treatment
4. Vaccination against Streptococcus pneumoniae within 5 years prior to initiation of study treatment
Key exclusion criteria1. Treatment with any other investigational drug, biological agent, or device within 4 weeks or 5 drug-elimination half-lives, whichever is longer, prior to initiation of study treatment.
2. Received or is scheduled to receive any live vaccine within 4 weeks prior to the first dose of investigational product or within 90 days after receipt of the investigational product.
3. Received or is scheduled to receive an inactivated vaccine within 1 week prior to the first dose of investigational product or within 90 days after receipt of the investigational product.
4. History or evidence of any medical conditions (e.g., gallbladder removal, malabsorption syndrome, or hepatic disorder) potentially altering the absorption, distribution, metabolism, or elimination of drugs.
5. Social circumstances that increase the risk of infection with bacteria that can cause encapsulated infections
6. History or presence of clinically significant cardiovascular disease, renal disease, hepatic disease, gastrointestinal disease, hematological disease, immunological disease, neurological disease, endocrine disease, metabolic disease, pulmonary disease, or history of any of these diseases with renal, hepatic, or cardiopulmonary dysfunction.
8. Pregnancy or breastfeeding, or intention of becoming pregnant during the study or within 3 months after the single SC dose of RO7434656.
Date of first enrolment10/10/2024
Date of final enrolment15/10/2024

Locations

Countries of recruitment

  • China

Study participating centre

Peking University First Hospital
100009
China

Sponsor information

F. Hoffmann-La Roche Ltd
Industry

Building 1, Grenzacherstrasse 124
Basel
CH-4070
Switzerland

Phone +41 (0)616878333
Email global.trial_information@roche.com
Website www.roche.com/about/

Funders

Funder type

Industry

F. Hoffmann-La Roche
Private sector organisation / For-profit companies (industry)
Alternative name(s)
Hoffman-La Roche, F. Hoffmann-La Roche Ltd.
Location
Switzerland

Results and Publications

Intention to publish date10/04/2026
Individual participant data (IPD) Intention to shareNo
IPD sharing plan summaryNot expected to be made available
Publication and dissemination planPlanned publication in a high-impact peer-reviewed journal
IPD sharing planThe datasets generated during and/or analysed during the current study are not expected to be made available due to participant-level data not being a regulatory requirement.

Editorial Notes

14/04/2025: The overall end date was changed from 31/12/2025 to 10/04/2025.
04/11/2024: The recruitment end date was changed from 31/12/2024 to 15/10/2024.
17/10/2024: The recruitment start date was changed from 02/09/2024 to 10/10/2024.
23/08/2024: Study's existence confirmed by the Peking University First Hospital Ethics Committee.