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Immune Response to the COVID-19 Vaccine

Immune Response to the COVID-19 Vaccine

Status
Completed
Phases
Early Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04936997
Enrollment
20
Registered
2021-06-23
Start date
2021-06-07
Completion date
2022-05-08
Last updated
2022-05-20

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Cancer, Covid19, Malignancy, Vaccine Response Impaired

Keywords

Covid-19 vaccine, Pfizer Covid-a9 vaccine, Covid vaccine study

Brief summary

Explore the effects on immune response to include a potential third vaccine for the cancer cohort.

Detailed description

In recent work performed by the University of Arizona Cancer Center team, 59 patients with a known diagnosis of a solid tumor malignancy on active immunosuppressive cancer therapy were enrolled through the University of Arizona Cancer Center during their routine care. These subjects had a decreased response with the vaccine when compared to the health cohort. The investigators are amending this study to explore the effects on immune response to include a potential third vaccine for the cancer cohort. This will increase the visits required to approximately two more visits. It will require two additional blood samples, one 48 hours prior to third vaccine and the second, 5-11 days after the third vaccine. The following protocol will be for the subjects that decide to continue onto a third vaccination.

Interventions

BIOLOGICALSARS-COV2 Pfizer Vaccine

Vaccine for the prevention of coronavirus disease 2019 (COVID-19) caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2).

Sponsors

University of Arizona
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

1. Patients must have active solid tumor malignancy diagnosis 2. On active chemotherapy 3. Received two prior SARS-COV2 Pfizer vaccines 4. Age ≥ 18 years 5. Ability to understand and the willingness to sign a written informed consent 6. Agree to comply with study procedures 7. Subjects previously enrolled under the main study

Exclusion criteria

1. History of HIV or organ/bone marrow transplant 2. Actively receiving immunotherapy 3. On active, chronic immunosuppression (\>10 mg daily dose of prednisone equivalent) 4. Currently incarcerated or residence of another state 5. Speaks a language other than English.

Design outcomes

Primary

MeasureTime frameDescription
Immune response3 monthsEvaluating immune response to a second COVID-19 vaccination booster (3rd vaccine) in patients with solid tumor malignancies on immunosuppressive cancer therapies by antibody quantification in blood samples.

Secondary

MeasureTime frameDescription
Adverse events3 monthsEvaluating immune response to a second COVID-19 vaccination booster (3rd vaccine) in patients with solid tumor malignancies on immunosuppressive cancer therapies by T-cell quantification in blood samples.

Countries

United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 14, 2026