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Page 347                 Giliberti et al. J Transl Genet Genom 2024;8:340-54  https://dx.doi.org/10.20517/jtgg.2024.41

               Table 1. Characteristics of emerging therapies
                New therapy  Administration   Advantages             Trials
                Moss-       • Repeated administration  ◆ Safety and tolerability   • Phase 1 clinical trial (NCT02995993)
                galactosidase alfa            ◆ Prolonged reduction of Gb3
                                              excretion
                                              ◆ Expression of the mannose
                                              receptor on kidney cells
                Venglustat  • 15 mg once daily  ◆ Oral administration   • 3-year open-label phase 2 trials (NCT02228460 -
                                              ◆ Linear pharmacokinetics   NCT02489344)
                                              ◆ Rapid absorption     • PERIDOT (randomized, double-blind, placebo-
                                                                     controlled, 12-month Phase 3 study NCT05206773)
                                              ◆ Favorable safety and tolerability
                                              profile                • CARAT (phase III clinical trial NCT05280548)
                                              ◆ Ability to pass the blood-brain
                                              barrier
                Lucerastat  • 100, 300, 500, 1,000 mg  ◆ Oral administration   • SAD (single-ascending dose study NCT02944487)
                            once daily        ◆ Favorable safety and tolerability  • MAD (multiple-ascending dose study NCT02944474)
                            • 200, 500, 1,000 mg b.i.d. profile      • MODIFY (multicenter, double-blind, randomized,
                                              ◆ Ability to pass the blood-brain   placebo-controlled phase III study NCT03425539)
                                              barrier
                Gene therapy  • Single administration  ◆ Long-term treatment   • Open-label phase I/II trial (NCT04519749)
                                              ◆ All damaged cells and tissues
                                              involved
                mRNA-based   • Repeated administration  ◆ No immunogenicity   • Preclinical studies
                therapy                       ◆ Long-term treatment
                                              ◆ Endogenous α-Gal expression by
                                              the targeted tissues
                                              ◆ No risk of insertional
                                              mutagenesis
                                              ◆ Prolonged half-lives and duration



               Phase 1 studies have demonstrated its linear pharmacokinetics, rapid absorption, and a favorable safety and
               tolerability profile in healthy volunteers .
                                                [60]

               Data from a 26-week open-label Phase 2a study (NCT02228460) and a 130-week extension trial
               (NCT02489344) demonstrated the safety and efficacy of Venglustat in treatment-naïve adult males with FD
               (15 mg once daily oral dose) .
                                       [61]

               Patients treated with Venglustat exhibited decreased levels of key glycosphingolipid pathway markers.
               While proximal markers showed a rapid decline, more distal markers such as plasma Gb3 and
               globotriaosylsphingosine demonstrated a gradual reduction. Importantly, no biochemical or histological
               evidence of disease progression was observed over three years of follow-up.

               However, the efficacy and safety of Venglustat need to be confirmed in larger studies.


               A phase III clinical trial, CARAT, is currently underway to evaluate the effect of Venglustat on left
                                                               [62]
               ventricular mass index compared to traditional therapies .
               There is another ongoing trial, the PERIDOT trial, that aims to evaluate the efficacy of Venglustat in
                                                                                 [63]
               reducing neuropathic and abdominal pain in treatment-naïve patients with FD .
               The drug is also being evaluated for the treatment of other diseases, including Parkinson’s disease associated
               with GBA mutations, Gaucher disease type 3, GM2 gangliosidosis, and autosomal dominant polycystic
               kidney disease .
                           [60]
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