Clinical trial NCT00598481: ADA Gene Transfer Into Hematopoietic Stem/Progenitor Cells for the Treatment of ADA-SCID
Official title: ADA Gene Transfer Into Hematopoietic Stem/Progenitor Cells for the Treatment of ADA-SCID
Study type: INTERVENTIONAL
Overall status: COMPLETED
Phase: PHASE2
Conditions: Immunologic Deficiency Syndromes
Keywords: SCID
gene therapy
Adenosine deaminase
retroviral vector
Lead sponsor: Fondazione Telethon
Sponsor class: OTHER
First posted: 2008-01-22
Enrollment: 12
Sex: ALL
Maximum age (years): 17
Standard ages: CHILD
Accepts healthy volunteers: no
Allocation: NA
Intervention model: SINGLE_GROUP
Primary purpose: TREATMENT

Brief summary: This is a phase I/II protocol to evaluate the safety and efficacy of ADA gene transfer into hematopoietic stem/progenitor cells for the treatment of adenosine deaminase (ADA)-deficiency. This condition is an autosomal recessive form of Severe Combined Immunodeficiency (SCID) characterized by impaired immune responses, recurrent infections, failure to thrive and systemic toxicity due to accumulation of purine metabolites. Transplants from an human leukocyte-antigen (HLA)-identical sibling donor is the treatment of choice, but available for a minority of patients. The use of alternative bone marrow donors or enzyme replacement therapy is associated with important drawbacks. The drug product studied in this protocol consists of autologous cluster of differentiation (CD)34+ hematopoietic stem/progenitor cells engineered ex vivo with a retroviral vector encoding the therapeutic gene ADA. The engineered CD34+ cells are infused following a nonmyeloablative conditioning with busulfan to make space in the bone marrow. The study objectives are: a) to evaluate the safety and the clinical efficacy of gene therapy, in the absence of enzyme replacement therapy; b) to evaluate the biological activity (engraftment, ADA expression) of ADA transduced CD34+ cells and their hematopoietic progeny. c) to evaluate the immunological reconstitution and purine metabolism after gene therapy.

Detailed description: The safety of the study will be evaluated by description of all adverse events and adverse drug reactions.

The study is aimed at reaching the minimum sample size of ten patients.

Eligibility criteria: Inclusion Criteria:

* ADA-SCID with no HLA-identical sibling donor available
* pediatric age and at least one of the following criteria:
* inadequate immune response after PEG-ADA for \> 6 months
* patients who discontinued PEG-ADA due to intolerance, allergy or auto-immunity
* patients for whom enzyme replacement therapy is not a life long therapeutic option

Exclusion Criteria:

* HIV infection
* history or current malignancy
* Patients who received a previous gene therapy treatment in the 12 months prior to receiving Strimvelis
* any other conditions dangerous for the patients according to the investigator

Primary outcomes:
measure: Survival
timeFrame: baseline to 3 years post gene therapy
Secondary outcomes:
measure: Rate of Severe Infections
timeFrame: Before Treatment and 3-months post-treatment up to 3 years
measure: CD3+ Cell Counts
timeFrame: baseline up to 3 years post gene therapy
Other outcomes:
Locations:
city: Jerusalem
country: Israel
facility: Investigational Site
city: Milano
country: Italy
facility: Ospedale San Raffaele
state: Lombardia
Study officials:
affiliation: Fondazione Telethon
name: Fondazione Telethon
role: STUDY_DIRECTOR
References:
citation: Carriglio N, Klapwijk J, Hernandez RJ, Vezzoli M, Chanut F, Lowe R, Draghici E, Nord M, Albertini P, Cristofori P, Richards J, Staton H, Appleby J, Aiuti A, Sauer AV. Good Laboratory Practice Preclinical Safety Studies for GSK2696273 (MLV Vector-Based Ex Vivo Gene Therapy for Adenosine Deaminase Deficiency Severe Combined Immunodeficiency) in NSG Mice. Hum Gene Ther Clin Dev. 2017 Mar;28(1):17-27. doi: 10.1089/humc.2016.191.
citation: Cicalese MP, Ferrua F, Castagnaro L, Pajno R, Barzaghi F, Giannelli S, Dionisio F, Brigida I, Bonopane M, Casiraghi M, Tabucchi A, Carlucci F, Grunebaum E, Adeli M, Bredius RG, Puck JM, Stepensky P, Tezcan I, Rolfe K, De Boever E, Reinhardt RR, Appleby J, Ciceri F, Roncarolo MG, Aiuti A. Update on the safety and efficacy of retroviral gene therapy for immunodeficiency due to adenosine deaminase deficiency. Blood. 2016 Jul 7;128(1):45-54. doi: 10.1182/blood-2016-01-688226. Epub 2016 Apr 29.
citation: 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.
citation: 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.
citation: 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.
citation: 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.
citation: 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.