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Immune Function and Response to Vaccination After Cancer Therapy in Pediatric Patients

Immune Function and Response to Vaccination Following Completion of Cancer Directed Systemic Therapy in Pediatric Patients With Cancer

Status
Recruiting
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04948619
Enrollment
64
Registered
2021-07-02
Start date
2022-08-08
Completion date
2030-10-01
Last updated
2026-07-23

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

Conditions

Pediatric Cancer

Keywords

Pediatric Oncology, Vaccine

Brief summary

Pediatric cancer survivors have increased infection-related morbidity and mortality. This study will evaluate immune dysfunction following cancer directed systemic therapy completion, with attention to clinical relevance and infection rate in this population compared to healthy siblings, when applicable. The investigators will also restart vaccinations at earlier time points than previously studied, at 3 months post therapy, and will assess whether boosters or revaccination schedules are superior for regaining immunity against potentially serious infections in survivors.

Detailed description

This study is a prospective, randomized trial. The target population is all patients between the ages of 2 and 21 years of age who complete cancer directed systemic therapy for any malignant diagnosis at our center over a 2 to 3-year time frame. The study will be conducted in the various disease-specific off therapy and survivorship clinics of Levine Children's Cancer and Blood Disorders. Patients will have lab evaluations for immune function at baseline, 3, 6, 12, and 24 months from last dose of cancer directed systemic therapy. At 3 months from last dose of cancer directed systemic therapy, patients with abnormal vaccine antibody titers will be randomized to receive either single booster vaccines or to begin a full revaccination series that models post-hematopoietic stem cell transplant vaccination strategies. Vaccines given will be directed against Haemophilus influenza type B, tetanus, diphtheria, pertussis, polio, hepatitis B, Streptococcus pneumoniae, measles, mumps, rubella, and varicella. Live vaccines (measles, mumps, rubella, and varicella) will be given at 6 months from last dose of cancer directed systemic therapy. Repeat vaccine antibody titers will be assessed at follow up visits as above to determine if there are differences in immediate or maintained immunity based on vaccine strategy used. For subjects \<18 years of age, we will present health questionnaires to their caregiver to answer at each of the time points. Subjects ≥18 years of age will complete their own health questionnaire. These questionnaires will assess frequency, type, and severity of viral and bacterial infections requiring antibiotics in study patients and their closest healthy sibling in age, when applicable.

Interventions

BIOLOGICALVaccine

Patients will have lab evaluations for immune function at baseline, 3, 6, 9 and 24 months post completion of treatment. At 3 months off therapy, patients with abnormal vaccine antibody titers will be randomized to receive either single booster vaccines or to begin a full revaccination series that models post-hematopoietic stem cell transplant vaccination strategies.

Sponsors

Wake Forest University Health Sciences
Lead SponsorOTHER
Atrium Health Levine Cancer Institute
CollaboratorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
OTHER
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
2 Years to 21 Years
Healthy volunteers
No

Inclusion criteria

1. Written informed consent, HIPAA authorization for release of personal health information, and assent, when applicable from the subject, parent, or legal guardian. 2. Age greater than or equal to 2 years and less than 22 years at the time of consent 3. Lansky/Karnofsky Performance Status of greater than 50 (ECOG less than 2) within 60 days prior to date of enrollment/randomization 4. Histological or cytological confirmation of any malignancy treated by the Pediatric Oncology team of Levine Children's Hospital 5. History of any malignant diagnosis treated with at least one cycle of cancer directed systemic therapy 6. Must be no more than 60 days from last dose of cancer directed systemic therapy at time of enrollment/randomization 7. As determined by the enrolling physician, ability of the subject and parent/caregiver to understand and comply with study procedures for the entire length of the study

Exclusion criteria

1. Malignant disease treated with observation, surgery, or radiotherapy alone 2. Known coexisting immunodeficiency 3. Subjects with normal baseline titers for all investigated vaccines 4. Known pregnancy 5. Documented previous severe allergic reaction to any vaccine or component of a vaccine 6. Documented current/active, severe infection, as determined by the investigator

Design outcomes

Primary

MeasureTime frameDescription
Vaccination comparison via objective lab measurements of vaccine titers2 yearsTo compare single booster vaccination (Arm A) to full revaccination (Arm B) in terms of immune response at 24 months post cancer directed systemic therapy in pediatric subjects who have received cancer directed systemic therapy for any malignancy.

Secondary

MeasureTime frameDescription
Vaccine comparison at 12 & 24 monthsUp to 2 yearsTo compare single booster vaccination to full revaccination in pediatric subjects who have received cancer directed systemic therapy for any malignancy in terms of the prevalence of immune abnormalities at 12 and 24 months completion.
Infection RatesUp to 2 yearsEvaluate infection rates (over a 2-year post randomization period) between subjects with residual immune dysfunction versus subjects with recovered immune function
Healthy Sibling comparisonUp to 2 yearsEvaluate infection rates in enrolled subjects and compare to healthy siblings, when applicable
Immune Abnormalities - MalignancyUp to 2 yearsEvaluate the prevalence of immune abnormalities at 12 and 24 months as a function of type of malignancy and length of treatment
Immune Abnormalities - Primary Vaccination StatusUp to 2 yearsEvaluate the prevalence of immune abnormalities as a function of primary vaccination status

Countries

United States

Contacts

CONTACTSceria Jenkins, RN
Sceria.Jenkins@advocatehealth.org980-442-2323
PRINCIPAL_INVESTIGATORAshley Hinson, MD

Wake Forest University Health Sciences

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Jul 24, 2026