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Cardiac FailureOPTIMANCT06532890

Optimal Pediatric Heart Transplant Immunosuppression With MicroRNAs

An observational study of Cardiac Failure and Graft Rejection, run by Northwestern University at 7 sites in United States.

Recruiting

Looking for participants now. Contact the study team or a site below to ask about taking part.

Sites and contacts
Official record
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Trial summary

This study aims to discover circulating microRNAs (associated with drug doses and levels) that can be used to characterize the overall immune state in pediatric heart transplant patients and predict patients that will go on to develop infection and rejection. Read more about this study

Who is it for?
Ages Up to 18 years
Conditions the study is for
Cardiac Failure, Graft Rejection
How many people
150 participants
Where
7 sitesUnited States
Study dates
6 Feb 2025to 1 Oct 2029
Phase
Observational
Are there results?
Not yet: the study is under way

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages Up to 18 years
  • All sexes
  • No healthy volunteers
  • Child, Adult

Study population: Patients ≤ 18 years of age at time of transplant listing from geographically and socioeconomically diverse regions of the U.S. who have undergone orthotopic heart transplant (OHT). Patients will be screened for eligibility and enrolled 10-50 days after pediatric heart transplantation.

Who may be able to join

  • Age ≤ 18 years at time of transplant listing
  • Subject is within 10-50 days post-orthotopic heart transplant at time of enrollment.
  • Planned follow-up at the transplant center for a minimum of one-year.
  • Caregiver able and willing to comply with the study visit schedule, study procedures, and study requirements.

Who cannot join

  • Recipient of a multi-organ transplant
  • History of prior solid organ transplant before the index heart transplant
  • Ongoing mechanical circulatory support or hemodynamic instability after transplant
  • Active infection requiring either a) hospitalization or b) treatment with antimicrobial drugs (does not include prophylaxis for infection or suppressive antibiotics given after transplant)
  • History of treated rejection prior to study enrollment
  • Inability to collect specified blood volume after enrollment and prior to 50 days post-transplant

Trial locations and contacts

7 sites in 1 country. Contact the study team or a site near you to ask about taking part.

7 sites in 1 country

United States7 sites, 7 recruiting
  • University of Michigan

    Ann Arbor, Michigan, 48109

    Christine Cislo, ccislo@med.umich.edu

    David Peng, MD

    Recruiting
  • Children's Hospital Colorado

    Aurora, Colorado, 80045

    Rebecca Hill, Rebecca.Hill@childrenscolorado.org

    Shelley Miyamoto, MD

    Recruiting
  • Ann & Robert H. Lurie Children's Hospital of Chicago

    Chicago, Illinois, 60611

    Stephanie Brazis, (312) 227-0201, sbrazis@luriechildrens.org

    Defne Magnetta

    Recruiting
  • Texas Children's Hospital

    Houston, Texas, 77030

    Blake Fallon, bxfallo1@texaschildrens.org

    Joseph Spinner, MD

    Recruiting
  • Vanderbilt University

    Nashville, Tennessee, 37232

    Darlene Fountain, darlene.fountain@vumc.org

    David Bearl, MD

    Recruiting
  • Columbia University

    New York, New York, 10032

    Reina Puri, rp3222@cumc.columbia.edu

    Marc Richmond, MD

    Recruiting
  • University of Pittsburgh

    Pittsburgh, Pennsylvania, 15224

    Kyla Thorn, 4126926061, thornk2@upmc.edc

    Brian Feingold, MD

    Recruiting

Other trials in United States

About this study

This study aims to discover circulating microRNAs (associated with drug doses and levels) that can be used to characterize the overall immune state in pediatric heart transplant patients and predict patients that will go on to develop infection and rejection. MicroRNAs (miRs) are small, non-coding RNA molecules that regulate gene expression and serve as molecular biomarkers found in the circulation.

Read the detailed description

The study objectives will be accomplished in a prospective, multicenter observational, longitudinal cohort study that includes 100-150 Pediatric Heart Transplant (PHT) patients from the United States. Patients will be screened for eligibility and enrolled 10-50 days after PHT. Study participation will last 24 months.

All patients will follow the center's standard of care surveillance schedule after transplant. Blood samples will be collected for miR evaluation at:

  1. specified time intervals after transplant and
  2. when a clinical event of interest occurs, including treated rejection, or infection.

Research samples will be collected and used to evaluate microRNA expression as well as other biomarkers related to heart transplantation and immunosuppression medications. Additional data collection will include demographics, medical history, medications, human leukocyte (HLA)/donor specific antibody (DSA) evaluations, endomyocardial biopsy (EMB), echocardiography, donor-derived cell-free DNA (dd-cfDNA), and other post-transplant events and testing.

This work will form the basis for a non-invasive, genomic blood test that can be used to monitor patients after heart transplant to mitigate complications of over-immunosuppression, such as infection, without increasing the risks of under-immunosuppression, such as rejection.

Medical subject headings
Heart Failure

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Time-to-Event Analysis of Circulating microRNAs (miRs) Predicting Infection in Pediatric Heart Transplant Recipients

    A time-to-event analysis will be performed to identify specific circulating microRNAs (miRs) that predict the risk of infection in heart transplant recipients. Infections are defined as any bacterial, viral, fungal, or opportunistic infection leading to: 1) hospitalization, 2) prescription of antimicrobial therapy, or 3) reduction in immunosuppression.

    Measured: up to 2 years post-transplant

  2. Time-to-Event Analysis of Circulating microRNAs (miRs) Predicting Rejection in Pediatric Heart Transplant Recipients

    A time-to-event analysis will be performed to identify specific circulating microRNAs (miRs) that predict the risk of rejection in heart transplant recipients. Rejection is defined as treated rejection based on 1) endomyocardial biopsy (EMB) pathology, 2) unexplained graft dysfunction, or 3) molecular testing; leading to treatment with pulse dose steroids, monoclonal antibodies, plasmapheresis, and/or intravenous immunoglobulin (IVIg).

    Measured: up to 2 years post-transplant

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted1 Aug 2024
  2. Study start6 Feb 2025
  3. Primary completion1 Oct 2029 (estimated)
  4. Study completion1 Oct 2029 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Observational model
Cohort
Time perspective
Prospective
Enrolment
150 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT06532890
Sponsor's protocol ID
Northwestern-2024-197
Other IDs
Enduring Hearts Awards#1248960
Acronym
OPTIMA
Status last verified
Aug 2026
First submitted
29 Jul 2024
Last updated
25 Aug 2026
Results posted
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Publications

  • Shah P, Agbor-Enoh S, Bagchi P, deFilippi CR, Mercado A, Diao G, Morales DJ, Shah KB, Najjar SS, Feller E, Hsu S, Rodrigo ME, Lewsey SC, Jang MK, Marboe C, Berry GJ, Khush KK, Valantine HA; GRAfT Investigators. Circulating microRNAs in cellular and antibody-mediated heart transplant rejection. J Heart Lung Transplant. 2022 Oct;41(10):1401-1413. doi: 10.1016/j.healun.2022.06.019. Epub 2022 Jun 28.

    PubMed 35872109
  • Shah P, Bristow MR, Port JD. MicroRNAs in Heart Failure, Cardiac Transplantation, and Myocardial Recovery: Biomarkers with Therapeutic Potential. Curr Heart Fail Rep. 2017 Dec;14(6):454-464. doi: 10.1007/s11897-017-0362-8.

    PubMed 28940102

Questions about this trial

What is this clinical trial studying?

An observational study of Cardiac Failure and Graft Rejection, run by Northwestern University at 7 sites in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 4 inclusion and 6 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: looking for participants now, as of the sponsor's last update on 25 Aug 2026. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 7 sites in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

This study is still under way. Results are not available in the source record yet.

How can a doctor refer a patient or contact the research team?

Contact Palak Shah, MD (312-694-7805, optima@northwestern.edu), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Time-to-Event Analysis of Circulating microRNAs (miRs) Predicting Infection in Pediatric Heart Transplant Recipients (time frame: up to 2 years post-transplant). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT06532890, which also lists 2 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 25 Aug 2026.

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