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AzTrials

Adenosine Deaminase DeficiencyPhase 1/2NCT01279720

Gene Therapy ADA Deficiency

A Phase 1/2 study testing Intravenous infusion of transduced cells in people with Adenosine Deaminase Deficiency, run by Great Ormond Street Hospital for Children NHS Foundation Trust at 1 site in United Kingdom.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

Adenosine deaminase deficiency is an inherited disorder that results in severe abnormalities of the immune system and leaves children unable to fight infection. This trial aims to treat adenosine deaminase deficiency patients using gene therapy. Read more about this study

Who is it for?
Ages Up to 18 years
Conditions the study is for
Adenosine Deaminase Deficiency
What is being tested?
Intravenous infusion of transduced cells
Type of treatment
Injection or infusion
Could I receive a placebo?
No, everyone receives an active treatment
How many people
8 participants
Where
1 siteUnited Kingdom
Study dates
Oct 2003to Nov 2013
Phase
Phase 1/2
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 Up to 18 years
  • All sexes
  • No healthy volunteers
  • Child, Adult

Who may be able to join

  • Patients who lack a human leukocyte antigen (HLA)-genotypically identical bone marrow donor OR phenotypically matched family or unrelated donor AND who show incomplete immune reconstitution on Polyethylene glycol-modified adenosine deaminase (PEG-ADA) enzyme replacement therapy (defined by absolute CD4+ count <300 cell/mm3 and who remain on immunoglobulin replacement therapy)
  • Diagnosis of ADA-SCID (Severe combined immunodeficiency (SCID) due to adenosine deaminase (ADA)confirmed by DNA sequencing OR by confirmed absence of <3% of ADA enzymatic activity in peripheral blood or (for neonates) in umbilical cord blood erythrocytes and/or leukocytes or in cultured fetal cells derived from either chorionic villus biopsy or amniocentesis, prior to institution of PEG-ADA replacement therapy
  • Parental/guardian/patient signed informed consent

Who cannot join

None listed.

Trial locations and contacts

1 site in 1 country.

United Kingdom1 site
  • Great Ormond Street Hospital for Children NHS Trust

    London, WC1N 1EH

Other trials in United Kingdom

About this study

Official title: Phase I Gene Therapy Protocol for Adenosine Deaminase Deficiency

Adenosine deaminase deficiency is an inherited disorder that results in severe abnormalities of the immune system and leaves children unable to fight infection. This trial aims to treat adenosine deaminase deficiency patients using gene therapy.

Being tested
Intravenous infusion of transduced cells
Keywords
Adenosine deaminase deficiency, Gene therapy
Medical subject headings
Severe combined immunodeficiency due to adenosine deaminase deficiency

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Intravenous infusion of transduced cellsBiological

    Intravenous infusion of transduced cells

Study groups in NCT01279720
Study groupRoleWhat they receive
Intravenous infusion of transduced cellsExperimentalIntravenous infusion of transduced cells
Receives: Biological: Intravenous infusion of transduced cells

What is being measured

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

  1. Immunological reconstitution

    Measurement of Immunological reconstitution and Metabolic Correction. 5 year follow up of the last patient enrolled into study

    Measured: 5 years

Secondary outcomes (3)
  1. Incidence of adverse reactions

    Incidence of adverse reactions. 5 year follow up of the last patient enrolled into study

    Measured: 5 years

  2. Molecular characterisation of gene transfer

    Molecular characterisation of gene transfer. 5 year follow up of the last patient enrolled into study

    Measured: 5 years

  3. Normalisation of nutritional status, growth, and development

    Normalisation of nutritional status, growth, and development. 5 year follow up of the last patient enrolled into study

    Measured: 5 years

Timeline

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

  1. First posted19 Jan 2011 (estimated)
  2. Study startOct 2003
  3. Primary completionNov 2013
  4. Study completionNov 2013

Resources

More details

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

Study design
Study type
Interventional
Phase
Phase 1/2
Primary purpose
Treatment
Allocation
Non-randomised
Intervention model
Single group
Masking
None (open label)
Enrolment
8 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01279720
Sponsor's protocol ID
03MI14
Status last verified
Sep 2015
First submitted
18 Jan 2011
Last updated
14 Sep 2015
Results posted
No

Publications

  • Aiuti A, Slavin S, Aker M, Ficara F, Deola S, Mortellaro A, Morecki S, Andolfi G, Tabucchi A, Carlucci F, Marinello E, Cattaneo F, Vai S, Servida P, Miniero R, Roncarolo MG, Bordignon C. Correction of ADA-SCID by stem cell gene therapy combined with nonmyeloablative conditioning. Science. 2002 Jun 28;296(5577):2410-3. doi: 10.1126/science.1070104.

    PubMed 12089448
  • Hoogerbrugge PM, van Beusechem VW, Fischer A, Debree M, le Deist F, Perignon JL, Morgan G, Gaspar B, Fairbanks LD, Skeoch CH, Moseley A, Harvey M, Levinsky RJ, Valerio D. Bone marrow gene transfer in three patients with adenosine deaminase deficiency. Gene Ther. 1996 Feb;3(2):179-83.

    PubMed 8867866
  • Hershfield MS. PEG-ADA: an alternative to haploidentical bone marrow transplantation and an adjunct to gene therapy for adenosine deaminase deficiency. Hum Mutat. 1995;5(2):107-12. doi: 10.1002/humu.1380050202.

    PubMed 7749407

Questions about this trial

What is this clinical trial studying?

A Phase 1/2 study testing Intravenous infusion of transduced cells in people with Adenosine Deaminase Deficiency, run by Great Ormond Street Hospital for Children NHS Foundation Trust at 1 site in United Kingdom.

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 3 inclusion and 0 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: finished, as of the sponsor's last update on 14 Sep 2015. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United Kingdom. Whether a site is taking part right now should be confirmed with that site. See every site.

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.

What does this combined phase mean?

Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

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?

Immunological reconstitution (time frame: 5 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 NCT01279720, 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 14 Sep 2015; AzTrials last refreshed its copy on 28 Oct 2026.

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