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Not yet recruitingNCT03653702Updated Jul 22, 2026

Radiation-Free Technique for Evaluating Renal Scarring (RAFTERS)

A Phase 1 interventional study of Sulfur Hexafluoride Lipid Type A Microspheres 25 MG Injection Powder for Suspension [LUMASON] in Vesico-Ureteral Reflux, sponsored by Boston Children's Hospital. Not yet recruiting at 1 site in United States. Open to participants aged 6 Months to 35 Years. Per ClinicalTrials.gov, last updated 2026-07-22.

Sponsored by Boston Children's Hospital · Phase 1, Interventional, and Diagnostic

Phase
Phase 1
Study type
Interventional
Enrollment
70
Allocation
Not applicable
Ages
6 Months to 35 Years
Sex
All
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Study summary

In this research study the investigators want to study a safe, radiation-free technique known as contrast-enhanced ultrasound that may improve the ability to diagnose or evaluate renal scarring compared to regular ultrasound. This technique requires injection into a vein of a small amount of contrast material called Lumason. Contrast material is a type of dye that helps the investigators image the structures in the body more clearly. If this technique is successful, the need for DMSA studies may be avoided to diagnose or evaluate kidney scarring. DMSA is a more expensive test, causes radiation exposure, may require sedation and/or injection of contrast agents with the potential to cause allergic reactions.

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Conditions studied

  • Vesico-Ureteral Reflux

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03

In context

Vesico-Ureteral Reflux

28 studies on the registry are indexed under Vesico-Ureteral Reflux; 4 are open to participants now.

This study's planned enrollment of 70 is above the median of 62 across 20 interventional studies indexed under Vesico-Ureteral Reflux.

Browse Vesico-Ureteral Reflux studies →

Lead sponsor

Boston Children's Hospital is the lead sponsor of 598 studies on the registry; 151 are open to participants now.

Of its 31 completed or terminated interventional studies of FDA-regulated products, 18 (58%) have results posted.

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

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Who can participate

Ages eligible
6 Months to 35 Years
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  • patients older than or equal to 6 months and less than or equal to 35 years old and scheduled for Boston Children's Hospital (BCH) DMSA scan to evaluate renal function and/or renal scarring

Exclusion criteria

Exclusion Criteria:

  • patients with significant congenital renal anatomical abnormalities including horseshoe kidney, kidney malrotation, and multicystic dysplastic kidney (MCDK). Patients with severe cardio-pulmonary diseases will also be excluded.
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Study design

Phase
Phase 1
Primary purpose
Diagnostic
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
70 participants (estimated)

Study arms

  • Experimental
    Contrast Enhanced Ultrasound

    Participants will undergo a contrast enhanced ultrasound (CEUS) using Lumason

    Drug: Sulfur Hexafluoride Lipid Type A Microspheres 25 MG Injection Powder for Suspension [LUMASON]

Interventions

  • DrugSulfur Hexafluoride Lipid Type A Microspheres 25 MG Injection Powder for Suspension [LUMASON]

    Lumason will be used as the contrast agent. Standard Lumason dose will be used: 0.03mL/kg up to a maximum dose of 2.4 milliliter (mL) per injection

    Also known as: Lumason

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What researchers measure

Primary outcomes

  1. Performance of CEUS result and comparison to DMSA

    DMSA will be used as gold standard to evaluate CEUS test performance. Sensitivity and specificity of CEUS renal scarring detection will be calculated accordingly. Bivariate and multivariate analyses will be completed to compare patient characteristics between those with good and poor CEUS performance to investigate if CEUS performs better in patients with specific covariates

    Time frame: 3 months after final participant completes participation

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Study locations

1 site
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Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jul 22, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT03653702
Lead sponsor
Boston Children's Hospital
Responsible party
Richard Lee (Principal Investigator, Boston Children's Hospital) — Principal investigator
First posted
Aug 31, 2018
Start date
Jul 1, 2027 (estimated)
Primary completion
Jun 2029 (estimated)
Completion
Jul 2029 (estimated)
Last update
Jul 22, 2026

Study contacts

Vera Rodic, MPH
Contact
vera.rodic@childrens.harvard.edu
8572621693
Richard Lee
principal investigator · Boston Children's Hospital

Oversight

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

Not currently enrolling

This study is not yet recruiting, as verified in Dec 2025. You cannot join it, but the record below documents what was studied.

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