Clinical trial • Phase IV • Infectious Disease

Rabies virus (inactivated) strain Flury LEP for Viral infections

Phase IV trial of Rabies virus (inactivated) strain Flury LEP for Viral infections.

Overview

Trial Therapeutic Area
Infectious Disease
Trial Disease
Viral infections
Trial Stage
Phase IV
Drug Modality
Vaccine

Key dates

Initial CTIS Submission Date
05-09-2024
First CTIS Authorization Date
19-09-2024

Trial design

Reference/comparator group: subjects who received primary vaccination with two-visit, single-dose pre-exposure rabies vaccination (two-visit single-dose PrEP). Investigational regimen: single-visit single-dose intramuscular rabies PrEP (single 1.0 mL intramuscular dose).-controlled Phase IV trial across 1 site in Netherlands.

Comparator
Reference/comparator group: subjects who received primary vaccination with two-visit, single-dose pre-exposure rabies vaccination (two-visit single-dose PrEP). Investigational regimen: single-visit single-dose intramuscular rabies PrEP (single 1.0 mL intramuscular dose).
Target Sample Size
240
Trial Duration For Participant
1825

Eligibility

Recruits 240 Vulnerable populations are not selected for this trial. Participants must be able to provide informed consent (inclusion criterion: "Able to provide informed consent"); only adults (age 18-40) are eligible. No assent process or enrolment of minors indicated..

Pregnancy Exclusion
Pregnancy or breastfeeding during study visits in which the participant is vaccinated
Vulnerable Population
Vulnerable populations are not selected for this trial. Participants must be able to provide informed consent (inclusion criterion: "Able to provide informed consent"); only adults (age 18-40) are eligible. No assent process or enrolment of minors indicated.

Inclusion criteria

  • {"criterion_text":"- Age between 18 and 40 years\n- Good health according to investigator\n- Willingness and ability to adhere to the study regimen\n- Able to provide informed consent\n- Naïve to rabies exposure or vaccination\n- Willing to comply to a follow-up of 5 years\n- Unlikely to require rabies PrEP in next 5 years"}

Exclusion criteria

  • {"criterion_text":"- History of previous rabies vaccination\n- History of any neurological disorder including epilepsy\n- Pregnancy or breastfeeding during study visits in which the participant is vaccinated\n- Any current infectious disease other than seasonal cold\n- Bleeding disorders or use of anticoagulants\n- Suspected previous vaccination against rabies\n- Known or suspected severe allergy against egg protein\n- Known or suspected allergy against any of the other vaccine components\n- History of unusual or severe reactions to any previous vaccination\n- History of (pre)syncope associated with medical procedures involving n\n- Immunocompromized state due to illness or medication\n- Administration of plasma or blood products three months prior to inclusion\n- (hydroxy)chloroquine or mefloquine use"}

Endpoints

Primary endpoints

  • {"endpoint_text":"- The primary endpoint is the rate of increase of geometric mean concentrations (GMC) of neutralizing antibodies between day 1 and day 8 after revaccination","definition_or_measurement_approach":"Rate of increase of geometric mean concentrations (GMC) of neutralizing antibodies measured between day 1 and day 8 after revaccination (GMC of RVNA)."}

Secondary endpoints

  • {"endpoint_text":"- Percentage of subjects with RVNA titer >0.5 IU/mL at D1, D57 or D64, Y1, Y2 and Y5 after primary vaccination.","definition_or_measurement_approach":"Proportion of subjects with rabies virus neutralizing antibody (RVNA) titer >0.5 IU/mL measured at the specified time points."}
  • {"endpoint_text":"- Percentage of subjects with RVNA titer >0.5 IU/mL at D1, D8 and D15 after the simulated post-exposure vaccination","definition_or_measurement_approach":"Proportion of subjects with RVNA titer >0.5 IU/mL measured at D1, D8 and D15 after simulated post-exposure vaccination."}
  • {"endpoint_text":"- Percentage of subjects with RVNA titer >3 IU/mL, and percentage of subjects with RVNA titers >5 IU/mL at day 8 after simulated PEP.","definition_or_measurement_approach":"Proportion of subjects with RVNA titers exceeding 3 IU/mL and 5 IU/mL at day 8 after simulated post-exposure prophylaxis (PEP)."}
  • {"endpoint_text":"- GMCs at D1, D57 or D64, Y1, Y2 and Y5 after primary vaccination, and at D1, D8 and D15 after the simulated post-exposure vaccination","definition_or_measurement_approach":"Geometric mean concentrations (GMCs) of RVNA measured at the listed time points after primary vaccination and after simulated post-exposure vaccination."}

Recruitment

Planned Sample Size
240
Recruitment Window Months
72
Consent Approach
Participants must provide informed consent (inclusion criterion: "Able to provide informed consent"). Only adults aged 18-40 are eligible. A subject information sheet and informed consent form document is listed (L1_SIS and ICF), but specific languages or age-specific consent/assent procedures are not specified in the provided source.

Geography

Total Number Of Sites
1
Total Number Of Participants
240

Netherlands

Latest Decision Or Authorization Date
19-09-2024
Processing Time Days
14
Number Of Sites
1
Number Of Participants
240

Sites

Site Name
Leids Universitair Medisch Centrum (LUMC)
Department Name
Infectious Diseases
Principal Investigator Name
Leo Visser
Principal Investigator Email
l.g.visser@lumc.nl
Contact Person Name
Leo Visser
Contact Person Email
l.g.visser@lumc.nl

Sponsor

Primary sponsor

Full Name
Academisch Ziekenhuis Leiden
Organisation Type
Hospital/Clinic/Other health care facility
Country Of Registered Address
Netherlands

Investigational products

Investigational Product Name
Rabipur poeder en oplosmiddel voor oplossing voor injectie in een voorgevulde spuit.Rabiësvaccin (geïnactiveerd).
Active Substance
Rabies virus (inactivated) strain Flury LEP
Modality
Vaccine
Routes Of Administration
Intramuscular injection
Route
Intramuscular injection
Authorisation Status
Authorised (marketing authorisation RVG 117796, NL)
Starting Dose
1.0 mL
Dose Levels
1.0 mL (single-dose primary vaccination)
Frequency
Single intramuscular dose (primary vaccination); revaccination/simulated PEP timepoints per protocol
Maximum Dose
3 ml (maxTotalDoseAmount = 3)

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