NCT05401305

Brief Summary

Trial purpose is to evaluate the safety, tolerability and reactogenicity of the Vaccine for the prevention of infections caused by Haemophilus Influenzae Type b in volunteers aged 18-50.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
60

participants targeted

Target at P75+ for phase_1

Timeline
Completed

Started Jan 2020

Shorter than P25 for phase_1

Geographic Reach
1 country

1 active site

Status
completed

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 Start

First participant enrolled

January 14, 2020

Completed
3 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

March 30, 2020

Completed
3 months until next milestone

Study Completion

Last participant's last visit for all outcomes

June 17, 2020

Completed
1.9 years until next milestone

First Submitted

Initial submission to the registry

May 27, 2022

Completed
6 days until next milestone

First Posted

Study publicly available on registry

June 2, 2022

Completed
Last Updated

June 2, 2022

Status Verified

May 1, 2022

Enrollment Period

3 months

First QC Date

May 27, 2022

Last Update Submit

May 27, 2022

Conditions

Keywords

Haemophilus InfluenzaeHaeophilus influenza type bVaccineHib vaccinesHibSPbSRIVS

Outcome Measures

Primary Outcomes (2)

  • Incidence of local adverse events (AEs)

    * Pain at the injection site * Hyperemia at the injection site * Infiltrate at the injection site * Injection site edema Severity of an AE was established according to the following classification: 0 - none - No symptoms 1. \- mild - Mild symptoms 2. \- moderate - Symptoms that disrupt normal daily activities to a certain extent 3. \- severe - Symptoms that disrupt normal daily activities Hyperemia/infiltration/edema 0 - none - No symptoms 1. \- mild - Hyperemia with a diameter of up to 50 mm or infiltrate/edema with a diameter of up to 25 mm 2. \- moderate - Hyperemia with a diameter of up to 50 mm or infiltrate/edema with a diameter of 26-50 mm 3. \- severe - Infiltrate/edema more than 50 mm in diameter

    Days 1-7 post-vaccination

  • Incidence of systemic adverse events (AEs)

    Fever, Irritability, Anxiety, Drowsiness, Fainting, Fatigue, Convulsions, Apnea, Arthralgia, Myalgia, Headache, Dizziness, Nausea, Abdominal pain, Loss of appetite, Vomiting, Diarrhea, Rash Severity of an AE was established according to the following classification: 0 - none - No symptoms 1. \- mild - Mild symptoms 2. \- moderate - Symptoms that disrupt normal daily activities to a certain extent 3. \- severe - Symptoms that disrupt normal daily activities Fever 0 - none \<=37.0°С 1. \- mild \> 37.0°С - \<=37.5°С 2. \- moderate \> 37.6°С - \<=38.5°С 3. \- severe \> 38.6°С

    Days 1-7 post-vaccination

Secondary Outcomes (15)

  • Incidence of other adverse events (AEs)

    Days 8-28 post-vaccination

  • Incidence of immediate adverse events (AEs) (allergic reactions)

    2 hours after vaccination

  • Incidence of severe adverse events (SAEs)

    Days 0-28

  • Withdrawal of a volunteer from the trial due to development of an AE/SAE associated with the use of the trial products

    Days 0-28

  • Number of patients with abnormal results of assessment of vital signs - blood pressure (BP)

    Days 0-7, 14, 28

  • +10 more secondary outcomes

Study Arms (2)

Hib vaccine

EXPERIMENTAL

Volunteers will be vaccinated with Vaccine for the prevention of infections caused by Haemophilus influenza type b once intramuscularly at a dose of 0.5 mL. Stage I: 5 volunteers Stage II: 25 volunteers

Biological: Vaccine for the prevention of infections caused by Haemophilus influenza type b

Placebo

PLACEBO COMPARATOR

Volunteers will receive a placebo once intramuscularly at a dose of 0.5 mL. Stage I: 5 volunteers Stage II: 25 volunteers

Biological: Placebo

Interventions

The vaccine is administered into the region of the deltoid muscle

Hib vaccine
PlaceboBIOLOGICAL

The placebo is administered into the region of the deltoid muscle

Placebo

Eligibility Criteria

Age18 Years - 50 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64)

You may qualify if:

  • Healthy volunteers (men and women) aged 18-50 years;
  • Written informed consent of volunteers to participate in the clinical trial;
  • Volunteers not previously vaccinated with any vaccine to prevent infections caused by Haemophilus influenza type b;
  • Volunteers able to fulfill requirements of the Protocol (i.e. fill out the patient's diary, come to follow-up visits);
  • For fertile women, a negative pregnancy test and consent to observe adequate methods of contraception (if hormonal contraceptives are used, they must be canceled at least 2 months before the start of the trial). All women with childbearing potential must have a negative pregnancy test result during the Data Collection Period. In the course of the trial women should use contraception methods with a reliability exceeding 90 %, or be sterile, or be in a postmenopausal state. Contraception methods with a reliability exceeding 90 % of common use include cervical caps with spermicide, diaphragms with spermicide, condoms, intra-uterine spirals.
  • For the men, are able to conceive - consent to use adequate contraception methods. In the course of the trial, men and their sexual partners should use contraception methods with a reliability exceeding 90 %, or be sterile. Contraception methods with a reliability exceeding 90 % of common use include cervical caps with spermicide, diaphragms with spermicide, condoms, intra-uterine spirals.

You may not qualify if:

  • A serious post-vaccination reaction (temperature above 40 °C, hyperemia or edema more than 8 cm in diameter) or complications (collapse or shock-like condition that developed within 48 hours after vaccination; convulsions accompanied or not accompanied by a fever due to any previous vaccination);
  • Allergic reactions to vaccine components, especially to tetanus toxoid, or to any previous vaccination for the prevention of infections caused by Haemophilus influenza type b;
  • Guillain-Barré syndrome (acute polyneuropathy) in the medical history;
  • Previous vaccination with rabies vaccines less than 2 months before immunization or scheduled vaccination with rabies vaccines within 1 month after immunization with the trial vaccines;
  • Vaccination with any vaccine within one month before the vaccination;
  • History of leukemia, tuberculosis, cancer, autoimmune diseases;
  • Positive blood test results for HIV, syphilis, hepatitis B/C.
  • Volunteers who received immunoglobulin or blood products or had a blood transfusion during the last three months before the trial;
  • History of long-term use (more than 14 days) of immunosuppressants or other immunomodulatory products for six months before the trial;
  • History of any confirmed or suspected immunosuppressive or immunodeficiency condition;
  • History of chronic diseases of the cardiovascular, bronchopulmonary systems, gastrointestinal tract, liver, kidneys, blood in the acute or decompensation stage;
  • History of progressive neurological pathology, convulsive syndrome;
  • Diabetes, thyrotoxicosis or other diseases of the endocrine system;
  • History of eczema;
  • Treatment with glucocorticosteroids, including in small doses, as well as local use of products containing steroids;
  • +7 more criteria

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Federally Funded Healthcare Institution Primary Healthcare Unit No.163, Federal Medical-Biological Agency (FFHI PHU No.163, FMBA of Russia)

Коltsovo, Russia

Location

MeSH Terms

Conditions

Haemophilus Infections

Interventions

Vaccines

Condition Hierarchy (Ancestors)

Pasteurellaceae InfectionsGram-Negative Bacterial InfectionsBacterial InfectionsBacterial Infections and MycosesInfections

Intervention Hierarchy (Ancestors)

Biological ProductsComplex Mixtures

Study Officials

  • Ellina Ruzanova, PhD

    St. Petersburg Research Institute of Vaccines and Sera

    STUDY DIRECTOR

Study Design

Study Type
interventional
Phase
phase 1
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
PARTICIPANT
Purpose
PREVENTION
Intervention Model
PARALLEL
Sponsor Type
OTHER GOV
Responsible Party
SPONSOR

Study Record Dates

First Submitted

May 27, 2022

First Posted

June 2, 2022

Study Start

January 14, 2020

Primary Completion

March 30, 2020

Study Completion

June 17, 2020

Last Updated

June 2, 2022

Record last verified: 2022-05

Locations