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Clinical Trials

Date: 2018-08-01

Type of information: update on patient enrollment

phase: 1-2

Announcement: update on patient enrollment

Company: Adverum Biotechnologies (USA - CA)

Product: ADVM-043

Action mechanism:

  • gene therapy.  ADVM-043 (AAVrh.10-A1AT) is a gene therapy candidate that has the potential to induce stable, long-term A1AT protein following a single administration. In a preclinical proof-of-concept study, ADVM-043 demonstrated robust protein expression above therapeutic levels in mice following either IV or IP administration. In another study in non-human primates, evidence of stable long-term expression of hA1AT mRNA was observed out to one year following IP administration of ADVM-043.
  • Alpha-1 antitrypsin (A1AT) deficiency is caused by mutations in the SERPINA1 gene, resulting in very low levels of A1AT. The current standard-of-care treatment for patients with A1AT deficiency with lung disease can be challenging, with weekly IV infusions of an alpha-1 proteinase inhibitor. The current treatment regimen can result in underdosing and lead to worsening lung function.

Disease: alpha-1 antitrypsin (A1AT) deficiency

Therapeutic area: Rare diseases - Genetic diseases

Country: USA

Trial details:

  • The ADVANCE study is an open-label, multicenter, dose-escalation study in order to assess the safety and protein expression of ADVM-043 following intravenous or intrapleural administration in patients with A1AT deficiency. The study will include up to four dosing cohorts of up to 5 patients each. The first cohort will receive an intravenous (IV) low dose of ADVM-043 of 8E13 total vg (equivalent to approximately 1E12 vg/kg based on an 80-kg patient). The next two cohorts will receive an intermediate IV dose or high IV dose, with the fourth cohort potentially evaluating intrapleural (IP) delivery of ADVM-043.
  • The primary endpoint is safety and tolerability and secondary endpoints include changes in plasma concentrations of both total and M-specific A1AT levels. Adverum expects to report preliminary data from this trial in the second half of 2018. (NCT02168686)

Latest news:

  • • On August 1, 2018, Adverum Biotechnologies announced updates for its next-generation adeno-associated virus (AAV)-based therapy programs ADVM-043, targeting alpha-1 antitrypsin (A1AT) deficiency. The first patient in Cohort 3 was dosed with ADVM-043 gene therapy in the ADVANCE Phase 1/2 clinical trial. Adverum expects to report preliminary data from patients in Cohorts 1 through 3 in the ADVANCE trial by the end of this year Based on a review of the preliminary safety data from patients in Cohort 2, the independent data monitoring committee (DMC) recommended dose escalation to Cohort 3, and the first patient was dosed with a single administration of ADVM-043 at a dose of ~1.5E13 vg/kg (1.2E15 total vg) in late July 2018.
  • • On February 26, 2018, Adverum Biotechnologies announced the completion of dosing and evaluation of patients (n=2) in the first cohort of the ADVANCE Phase 1/2 clinical trial for alpha-1 antitrypsin (A1AT) deficiency. Patients were treated with a single administration of ADVM-043 at a dose of ~1E12 vg/kg (8E13 total vg). Based on a review of the preliminary safety data, the independent data monitoring committee (DMC) has recommended proceeding to the second cohort of patients, which is open for enrollment.
  • • On December 28, 2017, Adverum Biotechnologies announced the dosing of the first patient in the ADVANCE Phase 1/2 clinical trial of ADVM-043 for alpha-1 antitrypsin (A1AT) deficiency. The ADVANCE clinical trial is designed to evaluate the safety and protein expression following a single administration of ADVM-043, Adverum’s novel gene therapy candidate. The study will include up to 20 patients across up to four dosing cohorts of up to 5 patients each.  It will be conducted at 5 leading centers in the United States. The primary endpoint is safety and tolerability and secondary endpoints include changes in plasma concentrations of both total and M-specific A1AT levels. Adverum expects to report preliminary data from this trial in the second half of 2018.
   

Is general: Yes