Gilde Healthcare company AM-Pharma announces positive clinical data from Phase 1b study evaluating ilofotase alfa in hypophosphatasia patients - Gilde Healthcare

Gilde Healthcare company AM-Pharma announces positive clinical data from Phase 1b study evaluating ilofotase alfa in ...

October 11, 2023
Utrecht (The Netherlands)

AM-Pharma B.V. today announced positive clinical results from the Phase 1b study evaluating the company’s proprietary recombinant alkaline phosphatase, ilofotase alfa, as potential enzyme replacement therapy in adult hypophosphatasia (HPP) patients. HPP is an inherited metabolic disease, characterized by low activity of tissue non-specific alkaline phosphatase (TNAP), caused by mutations at the ALPL gene. This low activity leads to accumulation of inorganic pyrophosphate (PPi), a strong inhibitor of mineralization, as well as pyridoxal-5’-phosphate (PLP), an important cofactor for enzymes. The disease can range widely in severity, however most adults with HPP suffer from recurrent fractures, muscle weakness, joint diseases and pain.

In the open-label pilot trial, a total of 12 patients were randomly assigned to one of two treatment arms and received a single intravenous dose of either 0.8 mg/kg or 3.2 mg/kg. Patients were followed for 10 days after dosing to evaluate changes in the biochemical fingerprint of HPP, safety and tolerability. The primary objectives for the study were changes in serum levels of PLP and PPi as compared to baseline. For PLP, the maximum proportional reduction was 35% in the 0.8 mg/kg cohort and 66% in the 3.2 mg/kg cohort. The mean time to return to 90% of baseline was 55 hours in the low-dose cohort and 168 hours in the high-dose cohort. The maximal proportional reduction for PPi was 36% in the 0.8 mg/kg cohort and 77% in the 3.2 mg/kg cohort. The mean time to return to 90% of baseline was 9.3 hours in the low-dose cohort and 53 hours in the high-dose cohort. In addition, ilofotase alfa was well-tolerated with pharmacokinetics consistent with observations from previous clinical studies.

About AM-Pharma
AM-Pharma strives to develop medicines for patients confronted with severe medical conditions. Our proprietary asset, ilofotase alfa, is being developed for the treatment of patients with acute kidney injury and has been granted FDA fast-track status. We also develop ilofotase alfa in the severe rare disease hypophosphatasia where ilofotase alfa has orphan drug status in the US and EU. With approximately 1,000 subjects evaluated to date in clinical trials, ilofotase alfa has a proven safety profile and a demonstrated kidney benefit. We are a dedicated team driven to bring treatment options to severely ill patients, their families and acute care professionals. Find out more about us online at: www.am-pharma.com.

About Gilde Healthcare
Gilde Healthcare is a specialized healthcare investor managing over €2.5 billion across two fund strategies: Venture&Growth and Private Equity. The Venture&Growth fund of Gilde Healthcare invests in fast growing companies active in digital health, medtech and therapeutics, based in Europe and North America. The Private Equity fund of Gilde Healthcare participates in profitable lower mid-market healthcare companies based in North-Western Europe. For more information, visit the company’s website at www.gildehealthcare.com.

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