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Severe Combined Immunodeficiency SyndromePhase 1/2NCT00599781

Gene Therapy for ADA-SCID

A Phase 1/2 study testing gene transduced PBL and/or gene transduced HSC in people with Severe Combined Immunodeficiency Syndrome, run by IRCCS San Raffaele.

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

This study investigated the safety and efficacy of different gene therapy approaches for Severe Combined Immunodeficiency (SCID) caused by the deficiency of adenosine deaminase (ADA) enzyme. This is a severe condition that can be cured by HLA-matched sibling donor bone marrow transplantation. Read more about this study

Who is it for?
Any age
What is being tested?
gene transduced PBL and/or gene transduced HSC
Type of treatment
Injection or infusion
Could I receive a placebo?
No, everyone receives an active treatment
How many people
8 participants
Where
No sites listed yet
Study dates
Mar 1992to Jan 2007
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 Any age
  • All sexes
  • No healthy volunteers
  • Child, Adult, Older adult

Who may be able to join

  • Lack of HLA-identical sibling donor and
  • Evidence of failure of the enzyme replacement treatment after >6 months or
  • PEG-ADA is not available as a life long option

Who cannot join

  • HLA identical bone marrow sibling donor
  • HIV infection
  • Malignancy

About this study

Official title: Treatment of ADA-SCID by Gene Therapy on Somatic Cells

This study investigated the safety and efficacy of different gene therapy approaches for Severe Combined Immunodeficiency (SCID) caused by the deficiency of adenosine deaminase (ADA) enzyme. This is a severe condition that can be cured by HLA-matched sibling donor bone marrow transplantation. Patients were enrolled if no HLA-identical sibling donor was available and the patient showed evidence of failure of enzyme replacement therapy or this treatment was not a long-term available option. The aim of the study was to evaluate the safety and efficacy of the procedure and to identify the relative role of peripheral blood lymphocytes and hematopoietic stem cells and progenitor cells in the long-term reconstitution of immune functions after retroviral vector mediated ADA gene transfer.

Read the detailed description

This is mono-centric, non-randomized, non-controlled, open label, phase I-II trial that evaluated the safety and efficacy of ADA gene transfer into somatic cells for the treatment of ADA-SCID

Being tested
gene transduced PBL and/or gene transduced HSC
Keywords
adenosine deaminase, SCID, gene therapy, retroviral vector
Medical subject headings
Severe Combined Immunodeficiency

What participants receive

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

  • gene transduced PBL and/or gene transduced HSCGenetic

    Also called gene therapy

    infusions of autologous PBL and/or HSC transduced with retroviral vectors encoding ADA

Study groups in NCT00599781
Study groupRoleWhat they receive
PBL/HSCExperimentalNot described
Receives: Genetic: gene transduced PBL and/or gene transduced HSC

What is being measured

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

  1. Evaluation of safety of the administration of the autologous PBL and/or autologous HSC transduced with the normal human ADA gene

Secondary outcomes (3)
  1. Evaluation of extent, kinetic and duration of the engraftment of transduced cells and the potential selective advantage of ADA positive cells

  2. Evaluation of efficacy of the administration of autologous PBL/HSC(Clinical, immunological, hematological, microbiological, ADA activity and purine metabolism)

  3. To identify the relative role of peripheral blood lymphocytes and hematopoietic stem cells and progenitor cells in the long-term reconstitution of immune functions after gene therapy

Timeline

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

  1. First posted24 Jan 2008 (estimated)
  2. Study startMar 1992
  3. Primary completionJul 2006
  4. Study completionJan 2007

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
NCT00599781
Sponsor's protocol ID
150291
Status last verified
Dec 2007
First submitted
8 Jan 2008
Last updated
24 Jan 2008
Results posted
No
Data monitoring committee
No

Publications

  • Sauer AV, Brigida I, Carriglio N, Hernandez RJ, Scaramuzza S, Clavenna D, Sanvito F, Poliani PL, Gagliani N, Carlucci F, Tabucchi A, Roncarolo MG, Traggiai E, Villa A, Aiuti A. Alterations in the adenosine metabolism and CD39/CD73 adenosinergic machinery cause loss of Treg cell function and autoimmunity in ADA-deficient SCID. Blood. 2012 Feb 9;119(6):1428-39. doi: 10.1182/blood-2011-07-366781. Epub 2011 Dec 19.

    PubMed 22184407
  • Cassani B, Montini E, Maruggi G, Ambrosi A, Mirolo M, Selleri S, Biral E, Frugnoli I, Hernandez-Trujillo V, Di Serio C, Roncarolo MG, Naldini L, Mavilio F, Aiuti A. Integration of retroviral vectors induces minor changes in the transcriptional activity of T cells from ADA-SCID patients treated with gene therapy. Blood. 2009 Oct 22;114(17):3546-56. doi: 10.1182/blood-2009-02-202085. Epub 2009 Aug 3.

    PubMed 19652199
  • Sauer AV, Mrak E, Hernandez RJ, Zacchi E, Cavani F, Casiraghi M, Grunebaum E, Roifman CM, Cervi MC, Ambrosi A, Carlucci F, Roncarolo MG, Villa A, Rubinacci A, Aiuti A. ADA-deficient SCID is associated with a specific microenvironment and bone phenotype characterized by RANKL/OPG imbalance and osteoblast insufficiency. Blood. 2009 Oct 8;114(15):3216-26. doi: 10.1182/blood-2009-03-209221. Epub 2009 Jul 24.

    PubMed 19633200
  • Aiuti A, Cattaneo F, Galimberti S, Benninghoff U, Cassani B, Callegaro L, Scaramuzza S, Andolfi G, Mirolo M, Brigida I, Tabucchi A, Carlucci F, Eibl M, Aker M, Slavin S, Al-Mousa H, Al Ghonaium A, Ferster A, Duppenthaler A, Notarangelo L, Wintergerst U, Buckley RH, Bregni M, Marktel S, Valsecchi MG, Rossi P, Ciceri F, Miniero R, Bordignon C, Roncarolo MG. Gene therapy for immunodeficiency due to adenosine deaminase deficiency. N Engl J Med. 2009 Jan 29;360(5):447-58. doi: 10.1056/NEJMoa0805817.

    PubMed 19179314
  • Cassani B, Mirolo M, Cattaneo F, Benninghoff U, Hershfield M, Carlucci F, Tabucchi A, Bordignon C, Roncarolo MG, Aiuti A. Altered intracellular and extracellular signaling leads to impaired T-cell functions in ADA-SCID patients. Blood. 2008 Apr 15;111(8):4209-19. doi: 10.1182/blood-2007-05-092429. Epub 2008 Jan 24.

    PubMed 18218852

Questions about this trial

What is this clinical trial studying?

A Phase 1/2 study testing gene transduced PBL and/or gene transduced HSC in people with Severe Combined Immunodeficiency Syndrome, run by IRCCS San Raffaele.

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 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: finished, as of the sponsor's last update on 24 Jan 2008. 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.

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?

Evaluation of safety of the administration of the autologous PBL and/or autologous HSC transduced with the normal human ADA gene. 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 NCT00599781, which also lists 5 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 24 Jan 2008.

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