MedTrace Logo

Effectiveness of COVID-19 Vaccine in Hematopoietic Stem Cell Transplant Patients

NCT05185817 · Status: UNKNOWN · Phase: PHASE2 · Type: INTERVENTIONAL · Enrollment: 100

Last updated 2022-05-09

No results posted yet for this study

Summary

COVID-19 vaccinations are predicted to be a huge success in pandemic control. However, the majority of the studies were conducted on healthy individuals, and the efficiency of COVID-19 vaccination in post-transplant patients is uncertain. In the setting of HSCT, the extreme immunosuppression caused by the conditioning regimen and the graft versus host disease (GvHD) preventive regimen clearly has an impact on the efficacy and immunogenicity of the COVID-19 vaccine. Given the importance of eliciting early SARS-Cov-2 protective immunity in patients who are undergoing Allo-HSCT and the EBMT recommendation to endorse vaccination as early as 3 months after allo-HCT \[7\], we conduct this prospective study to investigate the safety and immunogenicity of three doses Pastucovac (an RBD-based SARS-Cov-2 vaccine) at the early post-transplant period in adult Iranian patients who are undergoing Allo-HSCT. We also want to see whether there are any possible predictors, such as the effect of clinical characteristics and lymphocyte subpopulations at the time of vaccination on the serologic response following immunization. The findings of this study will serve to guide future COVID-19 vaccination recommendations in this population, such as the optimal starting time, interval time, and so on.

Conditions

  • Hematopoietic Stem Cell Transplantation (HSCT)
  • COVID-19 Vaccines
  • Immune System Tolerance

Interventions

BIOLOGICAL

Pasocovac vaccine

All enrolled post-Allo-SCT participants who meet the inclusion criteria are recruited to study from 3 to 12 months after Allo-HSCT and vaccinated with 2 doses of Pastucovac, with a 4-week (±7 days) interval and a booster dose at an 8-week (±7 days) interval from the second dose.

Sponsors & Collaborators

  • Tehran University of Medical Sciences

    lead OTHER

Principal Investigators

  • Maryam Barkhordar, MD · Tehran University of Medical Sciences

Study Design

Allocation
NA
Purpose
PREVENTION
Masking
NONE
Model
SINGLE_GROUP

Eligibility

Min Age
18 Years
Max Age
65 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2021-11-01
Primary Completion
2022-07-01
Completion
2023-07-01

Countries

  • Iran

Study Locations

More Related Trials

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT05185817 on ClinicalTrials.gov