Skip to content
Study details
Enrolling now

A Vaccine Booster (GEO-CM04S1) for the Prevention of COVID-19 in Patients With Chronic Lymphocytic Leukemia

City of Hope Medical Center
NCT IDNCT05672355ClinicalTrials.gov data as of Apr 2026
Phase

Phase 2

Target enrollment

80

Study length

about 2.5 years

Ages

18+

Locations

1 site in CA

About this study

This trial is testing a new vaccine, GEO-CM04S1, to see if it helps prevent COVID-19 infections in people with chronic lymphocytic leukemia. It compares this vaccine to the current standard of care vaccine and looks at whether the new vaccine boosts immunity better in patients with CLL.

Based on ClinicalTrials.gov records.

What participants do

  • 1.Receive Synthetic MVA-based SARS-CoV-2 Vaccine COH04S1
  • 2.Receive mRNA COVID-19 Vaccine
  • 3.Undergo Biospecimen Collection
PhasePhase 2
DrugSynthetic MVA-based SARS-CoV-2 Vaccine COH04S1
Routeinjection

Participation effort

Estimated from trial records. Details can vary by site.

Time + visits
Low14%
Logistics
Moderate50%

Logistics difficulty varies by site location and availability.

Trial highlights

Treatment details

Auto-extracted from trial records to preview treatments and outcomes.

Drug classes

vaccine, Immunological Agents

Drug routes

injection

Endpoints

Secondary: Confirmed COVID-19 infection by PCR viral load, Incidence of AEs unacceptable toxicity (UT), Incidence of adverse events (AEs) moderate toxicity (MOD), Incidence of serious adverse events (SAEs), SARS-CoV-2-S and -N specific IFNgamma (Th1) and IL-4 (Th2) cytokine levels following stimulation with overlapping peptide libraries specific for SARS-CoV-2

Procedures

diagnostic

Body systems

Oncology, Infectious