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RecruitingNCT07195032Updated Sep 24, 2026

Safety and Efficacy of Measles, Mumps, Rubella Vaccination in Pediatric Heart Transplantation Patients

A Phase 4 interventional study of Commercial measles, mumps, and rubella (MMR) vaccine in Heart Transplant Infection Prevention, sponsored by Children's Mercy Hospital Kansas City. Recruiting at 1 site in United States. Open to participants aged 1 Year to 17 Years. Per ClinicalTrials.gov, last updated 2026-09-24.

Sponsored by Children's Mercy Hospital Kansas City · Phase 4, Interventional, and Prevention

From the registry’s dates

  • Started Sep 2025; still recruiting 1 year 1 month later.
Phase
Phase 4
Study type
Interventional
Enrollment
60
Allocation
Not applicable
Ages
1 Year to 17 Years
Sex
All
01

Study summary

The study is an interventional, non-randomized assessment of safety and efficacy of live Measles, Mumps and Rubella (MMR) vaccine in subjects aged 12-months to 17 years who have undergone heart transplantation. Subjects who provide permission/assent will receive the commercial MMR vaccine according to product indication and labeling.

02

Conditions studied

  • Heart Transplant Infection Prevention

Keywords

  • Measles
  • Mumps
  • Rubella
  • Live vaccine
  • Heart transplant
03

In context

Measles

134 studies on the registry are indexed under Measles; 17 are open to participants now.

This study's planned enrollment of 60 is below the median of 852 across 105 interventional studies indexed under Measles.

Browse Measles studies →

Lead sponsor

Children's Mercy Hospital Kansas City is the lead sponsor of 210 studies on the registry; 20 are open to participants now.

Of its 18 completed or terminated interventional studies of FDA-regulated products, 14 (78%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
1 Year to 17 Years
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Received a heart transplant
  • At least 1 year after transplant
  • At least 1 year after antibody-mediated rejection treatment (intravenous immune globulin, rituximab, bortezomib, plasmapheresis, carfilzomib, eculizumab, daratumumab)
  • At least 1 year from anti-thymocyte globulin
  • At least 6 months after pulse dose treatment or basiliximab treatment
  • No history of MMR vaccination OR History of MMR vaccination but seronegativity for measles at time of inclusion
  • Clinically well

Exclusion criteria

Exclusion Criteria:

  • History of repeated infections necessitating adjustment in to non-standard regimen, including single agent immunosuppression and modified trough levels.
  • History of anaphylactic reaction to MMR vaccination
Terms in these criteria, in plain language(2)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Corticosteroids (steroids)

Anti-inflammatory medicines such as prednisone, prednisolone and dexamethasone — not the anabolic steroids used for muscle.

Studies differ in what they allow: check which steroid medicines, routes (tablets, injections, creams, inhalers, eye drops) and doses this study accepts.

Immunosuppression

A weakened immune system. It can come from an illness, such as HIV or some blood cancers, or from medicines that turn the immune system down, for example after an organ transplant or for an autoimmune disease; steroids at higher doses count.

Read whether the line is about a condition or about medicines, and which medicines and doses it means.

05

Study design

Phase
Phase 4
Primary purpose
Prevention
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
60 participants (estimated)

Study arms

  • Experimental
    Measles, Mumps, Rubella Vaccination

    Patients receiving MMR vaccination due to no historical vaccine OR a seronegativity for measles

    Drug: Commercial measles, mumps, and rubella (MMR) vaccine

Interventions

  • DrugCommercial measles, mumps, and rubella (MMR) vaccine

    Participants will receive the commercial MMR vaccine if they are deemed eligible for the study.

06

What researchers measure

Primary outcomes

  1. Number of participants who experience adverse reactions to the measles, mumps, and rubella vaccination

    Patients will be screened for adverse reactions following vaccine administration

    Time frame: Between 0-240 days after vaccine administration

  2. Number of participants with resultant initial seropositivity against measles after vaccination

    Serologic response will be measured after vaccine administration.

    Time frame: Between 60-240 days after vaccine administration.

Secondary outcomes

  1. Number of participants who experience prolonged seropositivity after vaccine administration

    Serologic response will be tested at least 365 days after final vaccine administration

    Time frame: Minimum of 365 days after vaccine administration

07

Study locations

1 of 1 sites recruiting
08

References and documents

Individual participant data

Plan to share: Undecided

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Sep 24, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT07195032
Responsible party
Victoria Blazek (Clinical Pharmacy Specialist, Children's Mercy Hospital Kansas City) — Principal investigator
First posted
Sep 26, 2025
Start date
Sep 11, 2025
Primary completion
Sep 11, 2027 (estimated)
Completion
Sep 11, 2027 (estimated)
Last update
Sep 24, 2026

Study contacts

Victoria Blazek, PharmD, BCPPS
principal investigator · Children's Mercy Hospital Kansas City

Oversight

Data monitoring committee
No
FDA-regulated drug
Yes
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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No contact was published for this record. The registry link below has the sponsor’s details.

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