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Ambispective Observational Multicenter Study on the Efficacy of the Third Dose of Vaccine Anti COVID-19 in Patients Suffering From Solid Tumors Undergoing Oncological Treatment Active.

Ambispective Observational Multicenter Study on the Efficacy of the Third Dose of Vaccine Anti COVID-19 in Patients Suffering From Solid Tumors Undergoing Oncological Treatment Active.

Status
Completed
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT06334744
Enrollment
120
Registered
2024-03-28
Start date
2021-11-17
Completion date
2023-06-08
Last updated
2024-03-29

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

Conditions

Oncologic Complications

Brief summary

To evaluate the serum neutralizing antibody titre in cancer patients undergoing active treatment against variants (VOC) before and after the third dose of BNT162b2 COVID-19 vaccine.

Interventions

None listed

Sponsors

Fondazione IRCCS Policlinico San Matteo di Pavia
Lead SponsorOTHER

Study design

Observational model
COHORT
Time perspective
PROSPECTIVE

Eligibility

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

Inclusion criteria

1. Patients aged 18 years or older, regardless of gender; 2. Life expectancy (estimated by the treating doctor) ≥ 6 months; 3. Histological diagnosis confirmed solid neoplasm; 4. Under active treatment 5. Previous two doses of Pfizer anti-SARS-CoV-2 vaccine received (will be considered also patients who have completed the vaccination cycle with other mRNA vaccines - Modern-) 6. All participants subscribed and signed the informed consent form first of enlistment 7. Patients with a positive history of a previous diagnosis are also enrolled laboratory confirmed COVID-19 8. ECOG 0-2

Exclusion criteria

1\. Inability to sign informed consent

Design outcomes

Primary

MeasureTime frameDescription
Determination of the change in neutralizing antibodies against SARS-CoV-2 (CLIA method) towards VOCs before the third dose of COVID-19 vaccine and 21 days after the same.3 weeksThe immune response to viral variants will be evaluated by neutralization tests. In detail, previously titrated and characterized viral isolates representative of the alpha, beta, gamma and delta variants will be used. Any new variants relevant from a clinical and epidemiological point of view will subsequently be taken into consideration. A positive neutralizing titer is considered to be a titer equal to or greater than 1:10

Secondary

MeasureTime frameDescription
Evaluation of the kinetics of neutralizing antibodies and anti-SARS-CoV-2 IgG titer (CLIA method) up to 52 weeks after the third dose of COVID-19 vaccine0, 3, 26, 52 weeksThe difference in antibody titers from time 0, at 3 and 26 weeks, up to week 52
Evaluation of the incidence of virologically confirmed cases of VOC after administration of the third dose of vaccine.52 weeksThe incidence will be expressed as patients per 100 people per year.
Evaluation of the incidence of local and systemic adverse reactions (ARs), directly or indirectly linked to the vaccine, in an observation period up to 4 weeks later the third dose of vaccine.4 weeksThe incidence will be expressed as patients per 100 people per year.
Evaluation of the incidence of New onset immune-related adverse events (IRAEs), such as immune-related pruritus, rashes, hypophysitis, hepatitis, pneumonia, diarrhoea, colitis in patients undergoing immunotherapy.52 weeksThe incidence will be expressed as patients per 100 people per year.

Countries

Italy

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026