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Examination of Clinical and Laboratory Abnormalities in Patients With Defective DNA Repair: Xeroderma Pigmentosum, Cockayne Syndrome, or Trichothiodystrophy

This study is currently recruiting participants.
Verified September 21, 2017 by National Institutes of Health Clinical Center (CC) ( National Cancer Institute (NCI) )
Sponsor:
ClinicalTrials.gov Identifier:
NCT00001813
First Posted: November 4, 1999
Last Update Posted: October 6, 2017
The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Know the risks and potential benefits of clinical studies and talk to your health care provider before participating. Read our disclaimer for details.
Information provided by (Responsible Party):
National Institutes of Health Clinical Center (CC) ( National Cancer Institute (NCI) )
  Purpose
Four rare genetic diseases, xeroderma pigmentosum (XP), Cockayne syndrome (CS), the XP/CS complex and trichothiodystrophy (TTD) have defective DNA excision repair although only XP has increased cancer susceptibility. We plan to perform careful clinical examination of selected patients with XP, XP/CS, CS, or TTD and follow their clinical course. We will obtain tissue (skin, blood, hair, buccal swabs) for laboratory examination of DNA repair and for genetic analysis. We hope to be able to correlate these laboratory abnormalities with the clinical features to better understand the mechanism of cancer prevention by DNA repair. Patients will be offered counseling and education for cancer control.

Condition
Cockayne Syndrome Skin Cancer Xeroderma Pigmentosum Trichothiodystrophy Genodermatosis

Study Type: Observational
Study Design: Observational Model: Cohort
Time Perspective: Prospective
Official Title: Examination of Clinical and Laboratory Abnormalities in Patients With Defective DNA Repair: Xeroderma Pigmentosum, Cockayne Syndrome, or Trichothiodystrophy

Resource links provided by NLM:


Further study details as provided by National Institutes of Health Clinical Center (CC) ( National Cancer Institute (NCI) ):

Primary Outcome Measures:
  • Identify four rare genetic diseases, xeroderma pigmentosum (XP), Cockayne syndrome (CS), the XP/CS complex and trichothiodystrophy (TTD) [ Time Frame: Up to 3 days ]

Estimated Enrollment: 700
Study Start Date: April 26, 1999
Detailed Description:
Four rare genetic diseases, xeroderma pigmentosum (XP), Cockayne syndrome (CS), the XP/CS complex and trichothiodystrophy (TTD) have defective DNA excision repair although only XP has increased cancer susceptibility. We plan to perform careful clinical examination of selected patients with XP, XP/CS, CS, or TTD and follow their clinical course. We will obtain tissue (skin, blood, hair, buccal swabs) for laboratory examination of DNA repair and for genetic analysis. We hope to be able to correlate these laboratory abnormalities with the clinical features to better understand the mechanism of cancer prevention by DNA repair. Patients will be offered counseling and education for cancer control.
  Eligibility

Information from the National Library of Medicine

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Ages Eligible for Study:   1 Year to 99 Years   (Child, Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   Yes
Criteria
  • ELIGIBILITY CRITERIA:

Patients with XP, XP/CS, CS, or TTD of any age, gender, race or HIV status are eligible for this study. Patients will be sought by contacting professional organizations (such as the American Academy of Dermatology-XP Task Force), lay support groups (such as the XP Society and the Share and Care CS Support Network) or by direct referral.

INCLUSION CRITERIA:

On referral, patients will be considered for inclusion in the study:

If they have clinical documentation of typical features of XP, XP/CS, CS or TTD or;

If they have laboratory documentation of defective DNA repair, or;

If they have some suggestive clinical features and are willing to participate in the study.

EXCLUSION CRITERIA:

Inability or unwillingness to provide tissue (skin, blood, buccal cells or hair) for laboratory studies.

  Contacts and Locations
Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT00001813


Contacts
Contact: Deborah E Tamura, R.N. (240) 760-6141 tamurad@mail.nih.gov
Contact: Kenneth H Kraemer, M.D. (240) 760-6139 kraemerk@mail.nih.gov

Locations
United States, Maryland
National Institutes of Health Clinical Center, 9000 Rockville Pike Recruiting
Bethesda, Maryland, United States, 20892
Contact: For more information at the NIH Clinical Center contact National Cancer Institute Referral Office    (888) NCI-1937      
Sponsors and Collaborators
National Cancer Institute (NCI)
Investigators
Principal Investigator: Kenneth H Kraemer, M.D. National Cancer Institute (NCI)
  More Information

Additional Information:
Publications:
Publications automatically indexed to this study by ClinicalTrials.gov Identifier (NCT Number):
Responsible Party: National Cancer Institute (NCI)
ClinicalTrials.gov Identifier: NCT00001813     History of Changes
Obsolete Identifiers: NCT00004044
Other Study ID Numbers: 990099
99-C-0099
First Submitted: November 3, 1999
First Posted: November 4, 1999
Last Update Posted: October 6, 2017
Last Verified: September 21, 2017

Keywords provided by National Institutes of Health Clinical Center (CC) ( National Cancer Institute (NCI) ):
Xeroderma Pigmentosum
Trichothiodystrophy
Cockayne Syndrome
Skin Cancer
DNA Repair

Additional relevant MeSH terms:
Ichthyosis
Syndrome
Skin Neoplasms
Xeroderma Pigmentosum
Cockayne Syndrome
Trichothiodystrophy Syndromes
Skin Diseases, Genetic
Disease
Pathologic Processes
Neoplasms by Site
Neoplasms
Skin Diseases
Precancerous Conditions
Skin Abnormalities
Congenital Abnormalities
Genetic Diseases, Inborn
Photosensitivity Disorders
Pigmentation Disorders
DNA Repair-Deficiency Disorders
Metabolic Diseases
Infant, Newborn, Diseases
Keratosis
Dwarfism
Bone Diseases, Developmental
Bone Diseases
Musculoskeletal Diseases
Heredodegenerative Disorders, Nervous System
Neurodegenerative Diseases
Nervous System Diseases
Abnormalities, Multiple