NCT05832073

Brief Summary

rabies mab CBB 1 is mainly used for passive immunization of patients bitten or scratched by rabies or other animals carrying rabies virus, this study mainly studies the safety, tolerability, pharmacokinetics, neutralizing antibody activity and immunogenic characteristics of rabies mAb CBB 1 in healthy adults

Trial Health

43
At Risk

Trial Health Score

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

Trial has exceeded expected completion date
Enrollment
152

participants targeted

Target at P75+ for early_phase_1

Timeline
Completed

Started Apr 2023

Shorter than P25 for early_phase_1

Geographic Reach
1 country

1 active site

Status
unknown

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

First Submitted

Initial submission to the registry

March 22, 2023

Completed
1 month until next milestone

First Posted

Study publicly available on registry

April 27, 2023

Completed
3 days until next milestone

Study Start

First participant enrolled

April 30, 2023

Completed
8 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 30, 2023

Completed
4 months until next milestone

Study Completion

Last participant's last visit for all outcomes

April 30, 2024

Completed
Last Updated

April 27, 2023

Status Verified

April 1, 2023

Enrollment Period

8 months

First QC Date

March 22, 2023

Last Update Submit

April 14, 2023

Conditions

Keywords

SafetyImmunogenicityRabies Virus Neutralizing Antibodies

Outcome Measures

Primary Outcomes (1)

  • Safety evaluation index

    All observed adverse events, serious adverse events, including but not limited to: Clinical indicators Physical examination; vital signs; 12-lead ECG; local reaction; systemic reaction. Laboratory indicators Laboratory tests: blood routine, urine routine, blood biochemistry (including liver function, fasting blood glucose, renal function, blood lipid, myocardial enzyme spectrum and electrolyte), blood coagulation routine, viral serology (hepatitis B two half, hepatitis C virus antibodies, human immunodeficiency virus antibodies and treponema antibodies), blood / urine pregnancy test (fertility only women); other auxiliary tests: chest radiograph (positive) and abdominal B ultrasound (including liver, gallbladder, pancreas, spleen and kidney).

    Twelve months

Secondary Outcomes (8)

  • PK evaluation index

    Twelve months

  • PK evaluation index

    Twelve months

  • PK evaluation index

    Twelve months

  • PK evaluation index

    Twelve months

  • PK evaluation index

    Twelve months

  • +3 more secondary outcomes

Study Arms (3)

Experimental group

EXPERIMENTAL

Natural full human monoclonal antibody CBB 1 injection:Each dose (2.5ml) contained 0.5 mg / natural monoclonal antibody ml CBB 1 Ingredients: 25 mM citrate buffer, 125 mM sodium chloride, 0.02% (w / v) polysorbate 20 and water for injection Character: colorless to pale green and yellow liquid Specification: 1.25 mg (2.5 ml) / bottle Mode of administration: intramuscular injection of the vastus lateralis muscle. Usage and dosage: The injection dose was calculated according to the group and body weight of the volunteer. On day 0, unilateral or bilateral extrafemoral muscle group injections were selected by dose, with no more than 5 mL at each site, and at least 2.5 cm apart.

Drug: Natural full human monoclonal antibody CBB 1 injectionBiological: Lyophilized rabies vaccine for human use (Vero cells)

Positive control group

ACTIVE COMPARATOR

Rabies Human Immunoglobulin (HRIG) Active ingredient: Rabid human immunoglobulin Specification: 200 IU / 2 ml / bottle Administration mode: intramuscular injection of the vastus lateral muscle group. Usage and dosage: the injection dose was calculated according to the body weight of the volunteer. On day 0, unilateral or bilateral extrafemoral muscle group injections were selected by dose, with no more than 5 mL at each site and at least 2.5 cm apart

Drug: Rabies Human Immunoglobulin (HRIG)Biological: Lyophilized rabies vaccine for human use (Vero cells)

Placebo group

PLACEBO COMPARATOR

Healthy people in placebo group will receive a dose of placebo

Drug: Natural full human monoclonal antibody CBB 1 injection placeboBiological: Lyophilized rabies vaccine for human use (Vero cells)

Interventions

Active ingredient: natural full human monoclonal antibody CBB 1 containing 0.5 mg / ml per dose (2.5ml) Ingredients: 25 mM citrate buffer, 125 mM sodium chloride, 0.02% (w / v) polysorbate 20 and water for injection

Experimental group

Active ingredient: Rabid human immunoglobulin

Positive control group

Composition: 25 mM citrate buffer, 125 mM sodium chloride, 0.02% (w / v) polysorbate 20 and water for injection

Placebo group

Active ingredient: inactivated rabies virus fixed poison

Experimental groupPlacebo groupPositive control group

Eligibility Criteria

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

You may qualify if:

  • Before the trial, I have had a detailed understanding of the nature, significance and possible benefits of the trial, the possible inconvenience and potential risks and discomfort, and volunteered to participate in this clinical trial, was able to communicate well with researchers, comply with the requirements of the whole study, and signed a written informed consent;
  • Men or women aged 18\~50 (including boundary values) at the time of screening;
  • The weight of female volunteers was 45.0 kg and 80.0 kg, that of male volunteers was 50.0 kg and 80.0 kg, and the body mass index (BMI) was between 18.0 and 27.0 kg/m2 (including boundary value) (BMI= weight kg / height m2);
  • Female volunteers have no fertility or egg donation plan within 14 days before the first dose to 3 months after the end of the trial and voluntarily take effective physical contraception, while male volunteers have no fertility or sperm donation plan within 3 months after the first dose to the trial and voluntarily take effective physical contraception.

You may not qualify if:

  • Those who are known to be allergic to the study drug (including excipients, similar drugs), or suffer from severe allergic diseases or allergic constitution (such as allergic to two or more drugs, food or pollen), may damage the safety of the volunteers in the judgment of the investigator (inquiry);
  • Those with a clear history of allergy to the essential substances (such as skin disinfectants) that may be exposed to during the test (inquiry);
  • Patients with a history of clinically serious disease within 6 months (180 days) before the first dose and not cured, or patients with acute or chronic diseases that may significantly affect the in vivo process or safety evaluation of the study drug (inquiry);
  • Patients with a previous history of autoimmune diseases or chronic hepatitis (inquiry);
  • Patients with a previous history of convulsions, epilepsy, mental or nervous system, or a family history of convulsions or epilepsy (inquiry);
  • Those who have received major surgery within 3 months (90 days) prior to the first dose, or those who may significantly affect the internal process or safety evaluation of the study drug (inquiry, inquiry);
  • Patients with a history of rabies virus infection or have received rabies vaccination (inquiry);
  • Suspected or clear identification of a history of injuries to warm-blooded mammals in the last 12 months (360 days) (warm-blooded animals refer to animals that can regulate their body temperature, also known as endotherms. Birds and the vast majority of mammals, including the cats and dogs around them, are warm-blooded animals) (inquiry);
  • Having received a vaccine other than the rabies vaccine within 1 month (30 days) prior to the first dose (inquiry);
  • Those who have used a rabies passive immunization preparation or used systemic immunosuppressive agents such as glucocorticoids within 3 months (90 days) prior to the first dose (inquiry, inquiry);
  • Those who have been used or are in the current period) or who may have a significant impact on the in vivo process or safety evaluation of the study drug (inquiry, inquiry);
  • Any clinical trial drug or device used within 3 months (90 days) prior to the first dose, or \<5 half-lives of the last previous trial drug dose (whichever is older), or planned to participate in other clinical trials during the study (inquiry, inquiry);
  • Regular alcohol for 3 months (90 days) before the first dose (3 times a week, and an average of 50° of liquor 200 ml) (inquiry);
  • Those with positive alcohol breath test or test value\> 0 mg / 100 ml (examination);
  • Cigarette addiction (more than 10 cigarettes or the same amount of tobacco per day) within 1 month (30 days) before the first dose (inquiry);
  • +13 more criteria

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

The First Affiliated Hospital of Yunnan University of Traditional Chinese Medicine

Kunming, Yunnan, 650000, China

Location

MeSH Terms

Conditions

Rabies

Condition Hierarchy (Ancestors)

Rhabdoviridae InfectionsMononegavirales InfectionsRNA Virus InfectionsVirus DiseasesInfections

Study Design

Study Type
interventional
Phase
early phase 1
Allocation
RANDOMIZED
Masking
TRIPLE
Who Masked
PARTICIPANT, INVESTIGATOR, OUTCOMES ASSESSOR
Masking Details
The design of this trail is based on random, two-blind, placebo control. The subjects and investigators will not know the masking status, unless the specific subjects who required treatment for serious adverse events .
Purpose
PREVENTION
Intervention Model
PARALLEL
Model Details: There were 152 healthy people aged 10-50 years, divided into two test groups: 76 rabies mAb CBB 1 alone and 76 rabies mAb CBB 1 combined with rabies vaccine administration, which were divided into 4 groups according to different doses
Sponsor Type
INDUSTRY
Responsible Party
SPONSOR

Study Record Dates

First Submitted

March 22, 2023

First Posted

April 27, 2023

Study Start

April 30, 2023

Primary Completion

December 30, 2023

Study Completion

April 30, 2024

Last Updated

April 27, 2023

Record last verified: 2023-04

Locations