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Safety and Immunogenicity of adenovirus vector COVID-19 vaccines following with additional dose of mRNA COVID-19 vaccines for cancer patients.

Safety and Immunogenicity of adenovirus vector COVID-19 vaccines following with additional dose of mRNA COVID-19 vaccines for cancer patients.

Status
Recruiting
Phases
Unknown
Study type
Observational
Source
TCTR
Registry ID
TCTR20220112004
Enrollment
400
Registered
2022-01-12
Start date
2021-06-18
Completion date
Unknown
Last updated
2026-08-03

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

Conditions

COVID19 Vaccine efficacy in oncologic patient. viral vector vaccine , mRAN vaccine cancer patient safety and immunogenicity

Interventions

Cancer patients in Thailand who are undergoing treatment and given consent to receive adenovirus vector COVID-19 vaccine
Prevention
Cancer patients

Sponsors

Quality Improvement fund, King chulalongkorn Memorial Hospital,The Thai Red Cross Society
Lead Sponsor

Eligibility

Sex/Gender
All
Age
18 Years to 85 Years

Inclusion criteria

Inclusion criteria: 1) Patients age 18 years old and older 2) Diagnosed with cancer and is undergoing treatment at Chulalongkorn Hospital 3) ECOG Performance status 0-2 4) Has given consent to receiving COVID-19 vaccine 5) Has given consent to participate in the research study

Exclusion criteria

Exclusion criteria: 1) Has histories of allergies (especially allergic reactions to vaccines) 2) Has histories of immune deficiency diseases (e.g. HIV or congenital immune deficiency) 3) Has been infected with COVID-19 within 14 days before receiving the vaccine 4) Has fever higher than 38c within 24 hours before receiving the vaccine 5) Received COVID-19 vaccine before 6) Has histories of hematologic diseases or has limitations for intramuscular injections 7) Has received immunosuppressant drugs unrelated to their cancer treatment

Design outcomes

Primary

MeasureTime frame
Antibody response following the third mRNA COVID-19 vaccine in cancer patients 2 week and 12 week after third vaccine Geometric mean titer (GMT) of anti-RBD IgG

Secondary

MeasureTime frame
Safety of third mRNA COVID-19 vaccine 7 days after third dose of mRNA vaccine FDA Toxicity grading scale in preventive vaccine clinical trials,Factors predicting poor immunogenicity 2 weeks after third dose multivariate analysis

Countries

Thailand

Contacts

Public ContactNattaya Teeyapun

Medical oncology unit, faculty of medicine, chulalonkorn University

ampnattaya.sin@gmail.com662564533

Outcome results

None listed

Source: TCTR (via WHO ICTRP) · Data processed: Aug 9, 2026