Clinical trial · Observational
Mechanisms of Somatic Mutation and Tumor Initiation in Pre-malignant Kidney Tubule Cells
- Source
- ClinicalTrials.gov
- Retrieved
- Sep 8, 2026
- Layer
- normalized (units and labels harmonized; values unchanged)
- Run
- ING-CLINICALTRIALS-20260908-000001
Summary
Brief summary (as posted)
The goal of this observational study is to analyze somatic mutations in the genome of normal kidney cells from patients affected by kidney cancer predisposition syndrome Von Hippel Lindau (VHL) and compare the mutation rates observed in these patients and in individuals not affected by the disease. The main questions the study aims to answer are: * Do kidney cells from VHL patients mutate more than cells from control individuals during adult life? * What mechanisms favor somatic mutation occurrence in the genome of normal kidney tubule cells? Participants will donate one blood sample and multiple urine samples. Urines will be used for kidney cell isolation, followed by cell culturing and genetic analyses. Urine samples will be collected once a year for 3-5 years. Sample collection will occur during the yearly screening program that each patient undergoes at the hospital. In case patients undergo surgical treatment of kidney tumors, samples discarded from surgery (tumor and normal kidney adjacent to tumor) will be collected and subjected to genetic analyses. Researchers will compare the number and types of mutations found in tumors and normal kidney cells from VHL-disease patients with those found in normal kidney cells from control individuals, to see if somatic mutation rates are increased in VHL-disease patients during aging.
Conditions
Conditions (2)
Free-text conditions as registered, with the CancerIndex entity they were reconciled to and the match type.
| Condition (as posted) | Mapped entity | Match | Confidence |
|---|---|---|---|
| Carcinoma, Renal Cell | Renal Cell Carcinoma | CURATED_BROADER | 0.80 |
| Von Hippel-Lindau Disease | — | UNRESOLVED | — |
Interventions
Interventions (1)
| Intervention | Type | Mapped drug | Match |
|---|---|---|---|
| Blood and urine sample collection | Other | — | UNRESOLVED |
Design
Arms and outcomes
Arms (2)
- label
- Controls
- description
- Healthy volunteers; patients referring to San Raffaele Hospital for renal/urological conditions other than VHL
- interventionNames
- Other: Blood and urine sample collection
- label
- VHL-disease patients
- description
- Individuals with genetic diagnosis of Von Hippel Lindau disease
- interventionNames
- Other: Blood and urine sample collection
Primary outcomes (1)
- measure
- Rate of somatic mutation accumulation in normal kidney tubule genomes
- timeFrame
- Normal kidney tubule cells from urines are assessed from control and VHL-disease patients typically over a period of 3 years (min 3 months, max 3 years)
- description
- The genome of multiple normal kidney cells from each subject will be investigated by whole genome sequencing. The number of somatic mutations per genome will be plotted according to donor's age and a curve describing the accumulation of mutations with age will be obtained for both the control and VHL-disease patient populations. The aim is to assess differences in mutation rates in the kidney of VHL-disease patients vs controls and understand the underlying mechanism.
Eligibility
Eligibility (as posted)
- Sex
- All
- Minimum age
- 18 Years
Show eligibility criteria text
Inclusion Criteria: * Genetic diagnosis of VHL-disease; age (data need to be collected from a population distributed between 25 and 65 years); gender (males and females should be equally represented); Exclusion Criteria: * patients with bilateral nephrectomy, in dialysis or kidney transplant; use of nephrotoxic drugs
References
Publications (0)
Data not yet available