Clinical trial Recruiting at 1 site Observational Ages 18 to 90

Investigating skin tumors in patients with tuberous sclerosis

Official title: Cutaneous Tumorigenesis in Patients With Tuberous Sclerosis

Run by National Institutes of Health Clinical Center (CC) · NCT00001975 · Data updated 2026-11-12

This study is testing how skin tumors in adults with tuberous sclerosis develop by looking at their medical history and examining their skin to understand what causes these tumors.

More Tuberous Sclerosis trials

Quick facts

Study typeObservational
Ages18 Years to 90 Years
SexAll
Enrollment400 (estimated)
SponsorNational Institutes of Health Clinical Center (CC)
NIH
Locations1 site (Bethesda, Maryland)
StatusRecruiting
StartedJanuary 26, 2000
Registry record updatedOctober 26, 2026
Trial IDNCT00001975 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates for this study are individuals aged 18 to 90 who have been diagnosed with tuberous sclerosis.

Probably not a fit

Patients without a diagnosis of tuberous sclerosis or those under 18 years old may not benefit from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This observational study focuses on patients diagnosed with tuberous sclerosis, a hereditary condition that leads to the development of multiple benign tumors. Participants aged 18 and older will undergo a thorough medical history review and skin examination by a dermatologist. Those with skin tumors will have biopsies performed on up to eight lesions to analyze genetic changes, protein levels, and other factors contributing to tumor growth. The goal is to better understand the molecular basis of these tumors and the factors that promote their development.

Why it matters

Potential benefit: If successful, this study could provide insights into the mechanisms behind skin tumors in tuberous sclerosis, potentially leading to improved management and treatment options for affected patients.

How similar studies have gone: While there have been studies on tuberous sclerosis, this specific investigation into the molecular basis of skin tumors is novel and may provide new insights.

Who can join: the full rules

Show full inclusion / exclusion criteria
* INCLUSION CRITERIA:

Patients will be those already diagnosed with TSC (definite, probable, or possible) based on clinical criteria and/or genetic testing, and ranging in age from 18 to 90 years old.

The clinical features of TSC considered of major significance are: facial angiofibromas or forehead plaque, nontraumatic periungual fibromas, three or more hypomelanotic macules, shagreen patch, multiple retinal nodular hamartomas, cortical tuber, subependymal nodule, subependymal giant cell astrocytoma, cardiac rhabdomyoma, lymphangioleiomyomatosis, and renal angiomyolipoma.

The minor features of TSC are: multiple randomly distributed pits in dental enamel, hamartomatous rectal polyps, bone cysts, cerebral white matter radial migration lines, gingival fibromas, nonrenal hamartoma, retinal achromic patch, confetti skin lesions, and multiple renal cysts (5). Definite TSC is diagnosed by the presence of two major features or one major feature plus two minor features. Probable TSC is diagnosed by the presence of one major feature and one minor feature. Possible TSC is diagnosed by the presence of either one major feature or two or more minor features. Patients will not be preselected for skin lesions, but about 80% of patients with TSC are expected to have skin lesions.

EXCLUSION CRITERIA:

Inability to give informed consent.

Tendency to keloid formation.

Allergy to anesthetics.

Bleeding abnormality.

Where it's running

  • National Institutes of Health Clinical Center
    Bethesda, Maryland, United States
    Recruiting

Study contacts

  • Principal investigator: Joel Moss, M.D. — National Heart, Lung, and Blood Institute (NHLBI)
  • Study coordinator: Tatyana A Worthy, R.N.
  • Email: worthyt@mail.nih.gov
  • Phone: (301) 827-1376

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.