Observational, Retrospective, Multicenter, Nonprofit Study on the Prevalence of Renal Involvement in Pediatric Patients With Tuberous Sclerosis

January 7, 2025 updated by: IRCCS Azienda Ospedaliero-Universitaria di Bologna
Observational, retrospective, multicenter, nonprofit study on the prevalence of renal involvement in pediatric patients with tuberous sclerosis.

Study Overview

Status

Recruiting

Conditions

Detailed Description

Tuberous sclerosis (TSC) is an autosomal dominant transmission neurocutaneous syndrome caused by mutations in the TSC1 (9q34) and TSC2 (16p13.3) genes. Renal involvement in tuberous sclerosis is frequent and consists of the presence of angiomyolipomas, cysts, increased risk of renal carcinoma (predominantly clear cell renal cell carcinoma), and proteinuria in the absence of angiomyolipomas or cysts, which may evolve into chronic kidney disease. Renal involvement in tuberous sclerosis is often asymptomatic, and in most cases the finding of angiomyolipomas, cysts, or changes in renal function is an occasional finding on examinations performed during follow-up. Angiomyolipomas are the most frequent form of renal involvement in tuberous sclerosis and, when symptomatic, cause potentially fatal hemorrhages (intratumoral or retroperitoneal), anemia, hypertension, hematuria, and renal failure due to subversion of the renal parenchyma.

The renal picture of TSC (hemorrhage, end-stage renal disease, and metastasis to renal carcinoma) is the second leading cause of death in pediatric TSC patients, after neurological, and the first in the adult population. Data regarding renal involvement in the pediatric population with TSC are scarce in the literature.

This study aims to assess the prevalence of renal involvement in pediatric TSC patients. More in detail, the primary aim is to assess the prevalence of angiomyolipomas and renal cysts in pediatric TSC patients. The secondary aims are to evaluate the correlation between genetic alteration and the presence of angiomyolipomas and renal cysts in TSC patients; to evaluate the renal outcome in terms of renal function and blood pressure in pediatric TSC patients with renal involvement; to evaluate the volume change of angiomyolipomas in pediatric patients with TSC on Everolimus therapy prescribed for neurological complications.

Study Type

Observational

Enrollment (Estimated)

80

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Locations

  • Italy
      • Bologna, Italy, 40138
        • Recruiting
        • IRCCS Azienda Ospedaliero-Universitaria di Bologna
        • Contact:
        • Principal Investigator:
          • Andrea Pasini, MD

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

  • Child

Accepts Healthy Volunteers

No

Sampling Method

Non-Probability Sample

Study Population

Since this is a descriptive study, a formal calculation of sample size is not expected. However, about 40-80 subjects are expected to be enrolled.

Description

Inclusion Criteria:

  • Patients of either sex under the age of 17 years at the time of last observation (06/30/2021);
  • Patients clinically evaluated in an outpatient or inpatient setting during 01/01/2018- 30/06/2021 with a diagnosis of TSC;
  • Informed consent signed by parent or legal guardian.

Exclusion Criteria:

  • Patients older than 18 years of age;
  • Patients with other phacomatoses.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Stage of angiomyolipoma
Time Frame: at baseline
0-6
at baseline

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

IRCCS Azienda Ospedaliero-Universitaria di Bologna

Investigators

  • Principal Investigator: Andrea Pasini, MD, IRCCS Azienda Ospedaliero-Universitaria di Bologna

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

July 1, 2021

Primary Completion (Estimated)

December 31, 2025

Study Completion (Estimated)

December 31, 2025

Study Registration Dates

First Submitted

January 2, 2025

First Submitted That Met QC Criteria

January 7, 2025

First Posted (Actual)

March 25, 2025

Study Record Updates

Last Update Posted (Actual)

March 25, 2025

Last Update Submitted That Met QC Criteria

January 7, 2025

Last Verified

December 1, 2024

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • TSC-PED-2021-01

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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