NCT04921111

A Phase I Safty and Immunogenicity Study of SCT1000 in Healthy Women Aged 18 to 45 Years

A Randomized, Double-Blind, Controlled (Positive and Placebo) Phase I Clinical Trial to Estimate Safty and Immunogenicity of the SCT1000 in Healthy Women Aged 18 to 45 Years

• Status: Unknown
• Phase: Phase 1
• Study type: Interventional
• Enrollment: 240 (estimated)
• Sponsor: Sinocelltech Ltd. · Industry
• Sex: Female
• Age: 18 Years – 45 Years
• Healthy volunteers: Accepted

Summary

A phase 1 random, double blind, positive and placebo control trail was conducted in 120 healthy women in the arm A: 18-26 years old and Arm B: 27-45 years old. The 40 subjects to be inoculated with low, middle, and high dose vaccinefirst in sequence if there was no safety issue. In each dose group SCT1000 : placebo: positive =3:1:1.Two arms can be recruited at the same time. If the DSMB assessment shows that the adverse events of a certain dose group meet the criteria of suspension / termination, the dose group will be suspended / terminated, and the vaccination of this dose group or higher dose group will not be carried out, and the study of other dose groups will continue. If this happens at a low dose, the study will be suspended / terminated.

Detailed description

Arm A: 18-26 years old. Random, double blind, Gardasil®9 positive control and placebo control was conducted in 120 healthy women in the arm. The first group was 40 subjects to be inoculated with low dose vaccine; After the first low dose group was completed, the safety observation was conducted 7 days after the first dose was completed. If there was no need to suspend / terminate the study, 40 subjects in the group were continued to receive the medium dose vaccine; After the first dose group was completed, the safety observation was 7 days after the first dose was completed. If there was no need to suspend / terminate the test, 40 subjects in the group were inoculated with high dose group. In each dose group SCT1000 : placebo: Gardasil® 9=3:1:1.Arm B: 27-45 years old. Random, double blind, Gardasil® positive control and placebo control was conducted in 120 healthy women in the arm. The first group was 40 subjects to be inoculated with low dose vaccine; After the first dose of the low dose group was completed, the safety observation was conducted 7 days after the first dose was completed. If there was no need to suspend / terminate the study, 40 subjects in the group were continued to be inoculated in the medium dose vaccine; After the first dose group was completed, the safety observation was 7 days after the first dose was completed. If there was no need to suspend / terminate the test, 40 subjects in the group were inoculated with high dose group. SCT1000 in each dose group: placebo: Gardasil® =3:1:1.Two arms can be recruited at the same time. If the DSMB assessment shows that the adverse events of a certain dose group meet the criteria of suspension / termination, the dose group will be suspended / terminated, and the vaccination of this dose group or higher dose group will not be carried out, and the study of other dose groups will continue. If this happens at a low dose, the study will be suspended / terminated.

Conditions

• HPV Infection Vaccine Safety SCT1000

Interventions

Type	Name	Description
DRUG	SCT1000	Recombinant 14 valent human papillomavirus vaccine (6,11,16,18,31,33,35,39,45,51,52,56,58,59) (insect cells)
DRUG	Gardasil®9	Recombinant 9 or 4 valent human papillomavirus vaccine
DRUG	placebo	aluminium phosphate
DRUG	Gardasil®	Recombinant 4 valent human papillomavirus vaccine

Timeline

• Start date: 2021-07-02
• Primary completion: 2022-07-31
• Completion: 2022-10-31
• First posted: 2021-06-10
• Last updated: 2021-09-17

Locations

1 site across 1 country: China