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ADA-SCIDNCT01182857

Quality of Life and Neuropsychiatric Sequelae in Patients Treated With Gene Therapy for ADA-SCID and in Their Parents

An observational study of ADA-SCID, run by National Human Genome Research Institute (NHGRI).

Withdrawn

Withdrawn. The study stopped before anyone enrolled.

Official record
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Trial summary

Background: Severe combined immunodeficiency (SCID) is a rare inherited disorder in which certain white blood cells have impaired function and are unable to properly fight infections. SCID typically appears within the first year of life and is characterized by multiple, recurrent severe infections. Read more about this study

Who is it for?
Ages 5 months to 50 years
Conditions the study is for
ADA-SCID
How many people
0 participants
Where
No sites listed yet
Study dates
5 Aug 2010to 25 Sep 2014
Phase
Observational
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 5 months to 50 years
  • All sexes
  • No healthy volunteers
  • Child, Adult

Who may be able to join

  • Patients:
  • Patients must be enrolled on protocol 01-HG-0189 in order to be eligible for enrollment on this protocol.
  • Written informed consent from adult patients, or from the parents or guardians of minor patients must be obtained. Assent must be obtained from minor children when applicable.
  • Patients must be English-speaking. Not all of the study instruments have been validated in other languages, and personnel are not available with training to administer the instruments in other languages.
  • Parents or Guardians
  • Parents must have a child enrolled on protocol 01-HG-0189 in order to be eligible for enrollment on this protocol. Guardians must have a ward enrolled on protocol 01-HG-0189 in order to be eligible for enrollment on this protocol.
  • Written informed consent must be obtained from parents or guardians.

Who cannot join

  • Inability to complete the study instruments. This includes inability to speak English. Not all of the study instruments have been validated in other languages, and personnel are not available to administer the test instruments in other languages.
  • Judgment of the clinical investigators that participation would be detrimental to the patient, parent or guardian.
  • Judgment of the clinical investigators that participation would be detrimental to the study.

About this study

Background:

  • Severe combined immunodeficiency (SCID) is a rare inherited disorder in which certain white blood cells have impaired function and are unable to properly fight infections. SCID typically appears within the first year of life and is characterized by multiple, recurrent severe infections. More than 10 percent of all cases of SCID involve a deficiency of an enzyme called adenosine deaminase (ADA), and these SCID patients also tend to have impaired brain function or psychiatric disorders. Researchers are attempting to treat ADA-SCID patients with an experimental gene therapy, and a research protocol has been established for those who are participating in this therapy.
  • Little is known about quality of life in individuals with ADA-SCID, but researchers believe that the effects of the disease and the treatments may cause a decreased quality of life in both patients and their parents. Another potential cause of decreased quality of life in ADA-SCID is the associated psychiatric and neurological problems caused by the disease. Researchers are interested in studying quality of life in individuals with ADA-SCID and their parents to provide more information about the disease.
Read more

Objectives:

  • To evaluate whether gene therapy alters the quality of life or neuropsychiatric status of children with ADA-SCID.
  • To monitor for intellectual, attention, memory, or specific learning disorders in children with ADA-SCID.
  • To evaluate whether undergoing gene therapy has an effect on parenting stress of parents whose children have ADA-SCID.

Eligibility:

  • Children who are participating in the ADA-SCID gene therapy research protocol (01-HG-0189).
  • Parents of children who are participating in the ADA-SCID gene therapy research protocol (01-HG-0189).

Design:

  • All of the testing and questionnaires will be done in the pediatric or adult clinic.
  • Participating children will have tests of intelligence, manual dexterity, reaction time, basic reading and arithmetic skills, speech, and memory. These tests will be given before the start of the therapy, and then once a year for 5 years.
  • Participating children will also complete questionnaires on quality of life. These questionnaires will be given before the start of the therapy, 3 months and 6 months after the therapy, and then every 6 months for a total of 5 years.
  • Additional psychological tests may be given at the discretion of the study researchers.
  • Parents will complete questionnaires to provide background medical information and report on quality of life and parental stress. The background information questionnaires will be given at the start of the therapy and then once a year for 5 years, the parental stress questionnaires will be given at the start of the therapy and then every 6 months for 5 years, and the quality of life questionnaires will be given at the same time as the child quality of life questionnaires.
  • This protocol is separate from the gene therapy treatment protocol.
Read the detailed description

The objectives of this study are to measure quality of life, neuropsychological sequelae and parental stress before and after gene therapy for ADA-SCID. The population to be studied will include up to five patients being treated with gene therapy at the NIH Clinical Center and five of their parents. The design of the study will be a non-randomized, longitudinal psychometric evaluation. Neuropsychological outcome measures will be the following battery: Wechsler Preschool and Primary Scale of Intelligence - Third Edition (WPPSI-III) or the Wechsler Intelligence Scale for Children - Fourth Edition (WISC-IV); the Wide Range Achievement Test - Fourth Edition (WRAT-4); subtests of the NEPSY; The Expressive One Word Picture Vocabulary Test (EOWPVT); Grooved Pegboard; Continuous Performance Test (CPT); Selective Reminding Test; and the Adaptive Behavior Assessment System- Second Edition. Quality of life will be measured with the PedsQL and parental stress will be measured with the Parenting Stress Index.

Conditions
ADA-SCID
Keywords
Quality of Life, Gene Therapy, ADA-SCID, SCID-ADA, Severe Combined Immunodeficiency
Medical subject headings
Severe combined immunodeficiency due to adenosine deaminase deficiency, Severe Combined Immunodeficiency

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Quality of life and neuropsychiatric status of patients being treated with gene therapy for ADA-SCID.

    Measured: 2 years

Secondary outcomes (1)
  1. Parental stress in parents of children being treated with gene therapy for ADA-SCID.

    Measured: 2 years

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted17 Aug 2010 (estimated)
  2. Study start5 Aug 2010
  3. Study completion25 Sep 2014

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Time perspective
Prospective
Enrolment
0 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01182857
Sponsor's protocol ID
100151
Other IDs
10-HG-0151
Status last verified
25 Sep 2014
First submitted
14 Aug 2010
Last updated
17 Dec 2019
Results posted
No

Publications

  • Varni JW, Seid M, Kurtin PS. PedsQL 4.0: reliability and validity of the Pediatric Quality of Life Inventory version 4.0 generic core scales in healthy and patient populations. Med Care. 2001 Aug;39(8):800-12. doi: 10.1097/00005650-200108000-00006.

    PubMed 11468499
  • Fasth A, Nystrom J. Quality of life and health-care resource utilization among children with primary immunodeficiency receiving home treatment with subcutaneous human immunoglobulin. J Clin Immunol. 2008 Jul;28(4):370-8. doi: 10.1007/s10875-008-9180-9. Epub 2008 Feb 7.

    PubMed 18256911
  • Abidin RR, Wilfong E. Parenting stress and its relationship to child health care. Child Health Care. 1989 Spring;18(2):114-6. doi: 10.1207/s15326888chc1802_9.

    PubMed 10292918

Questions about this trial

What is this clinical trial studying?

An observational study of ADA-SCID, run by National Human Genome Research Institute (NHGRI).

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 7 inclusion and 3 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: withdrawn, as of the sponsor's last update on 17 Dec 2019. Status can change between updates, so confirm with the study contact before making plans.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study was withdrawn before enrolling participants, so there are no results.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Quality of life and neuropsychiatric status of patients being treated with gene therapy for ADA-SCID. (time frame: 2 years). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT01182857, which also lists 3 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 17 Dec 2019.

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