NCT04948619

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.

Trial Health

77
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
64

participants targeted

Target at P50-P75 for phase_2

Timeline
53mo left

Started Aug 2022

Longer than P75 for phase_2

Geographic Reach
1 country

1 active site

Status
recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

Study Progress46%
Aug 2022Oct 2030

First Submitted

Initial submission to the registry

June 15, 2021

Completed
17 days until next milestone

First Posted

Study publicly available on registry

July 2, 2021

Completed
1.1 years until next milestone

Study Start

First participant enrolled

August 8, 2022

Completed
8.2 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

October 1, 2030

Expected
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

October 1, 2030

Last Updated

January 22, 2026

Status Verified

January 1, 2026

Enrollment Period

8.2 years

First QC Date

June 15, 2021

Last Update Submit

January 20, 2026

Conditions

Keywords

Pediatric OncologyVaccine

Outcome Measures

Primary Outcomes (1)

  • Vaccination comparison via objective lab measurements of vaccine titers

    To 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.

    2 years

Secondary Outcomes (5)

  • Vaccine comparison at 12 & 24 months

    Up to 2 years

  • Infection Rates

    Up to 2 years

  • Healthy Sibling comparison

    Up to 2 years

  • Immune Abnormalities - Malignancy

    Up to 2 years

  • Immune Abnormalities - Primary Vaccination Status

    Up to 2 years

Other Outcomes (1)

  • Safety - Potential Side Effects

    Up to 5.5 years

Study Arms (2)

Arm A - Single booster vaccines

OTHER

Those subjects randomized to Arm A, single dose vaccine boosters, will receive non live vaccine boosters at the 3 month visit. Boosters for live vaccines will be given at the 6 month visit. Boosters will only be given as applicable for low titers tested at the baseline assessment visit. Subjects who have negative/undetectable titers to any vaccine at the 24 month visit will receive boosters to each applicable vaccine.

Biological: Vaccine

Arm B - Staged revaccination series

OTHER

Those subjects randomized to Arm B, the full revaccination series, will receive applicable vaccines when titers are low (below normal range) at baseline. When indicated, non-live vaccines will be given at the 3, 6, and 9 month visits, live vaccines will be given at the 6 and 9 month visit. Subjects who have negative/undetectable titers to any vaccine at the 24 month visit will receive boosters to each applicable vaccine.

Biological: Vaccine

Interventions

VaccineBIOLOGICAL

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.

Arm A - Single booster vaccinesArm B - Staged revaccination series

Eligibility Criteria

Age2 Years - 21 Years
Sexall
Healthy VolunteersNo
Age GroupsChild (0-17), Adult (18-64)

You may qualify if:

  • Written informed consent, HIPAA authorization for release of personal health information, and assent, when applicable from the subject, parent, or legal guardian.
  • Age greater than or equal to 2 years and less than 22 years at the time of consent
  • Lansky/Karnofsky Performance Status of greater than 50 (ECOG less than 2) within 30 days prior to date of enrollment
  • Histological or cytological confirmation of any malignancy treated by the Pediatric Oncology team of Levine Children's Hospital
  • History of any malignant diagnosis treated with at least one cycle of cancer directed systemic therapy
  • Must be no more than 60 days from last dose of cancer directed systemic therapy at time of enrollment
  • 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

You may not qualify if:

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

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Levine Cancer Institute

Charlotte, North Carolina, 28204, United States

RECRUITING

MeSH Terms

Conditions

Neoplasms

Interventions

Vaccines

Intervention Hierarchy (Ancestors)

Biological ProductsComplex Mixtures

Study Officials

  • Ashley Hinson, MD

    Wake Forest University Health Sciences

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Study Design

Study Type
interventional
Phase
phase 2
Allocation
RANDOMIZED
Masking
NONE
Purpose
OTHER
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

June 15, 2021

First Posted

July 2, 2021

Study Start

August 8, 2022

Primary Completion (Estimated)

October 1, 2030

Study Completion (Estimated)

October 1, 2030

Last Updated

January 22, 2026

Record last verified: 2026-01

Data Sharing

IPD Sharing
Will not share

Locations