ADO09 (PRAMLINTIDE INSULIN)
ADO09 (PRAMLINTIDE INSULIN): MULTI-HORMONAL PRANDIAL COMBINATIONS FOR THE TREATMENT OF TYPE 1 DIABETES
High-performance, easy-to-use multi-hormone therapy to improve long-term outcomes
Although insulin is a vital treatment for people with type 1 diabetes, even the best-controlled patients present significant glycemic variations and frequently do not achieve the targets set by their physician. This may result in an increase in the risk of severe complications in the long term, such as cardiovascular disease, retinopathy, renal failure and neuropathy.
In fact, in people who do not have diabetes, insulin is secreted synchronously and acts in synergy with other hormones, such as amylin and GLP-1, to control glycemia. In type 1 diabetes, ultimately, neither insulin nor amylin are secreted, and GLP-1 secretion is deficient. It is therefore possible that the use of insulin alone cannot address all the metabolic deficiencies related to diabetes.
Pramlintide (Symlin®, AstraZeneca), a rapid-acting amylin analog, was approved in 2005 for the treatment of diabetes (type 1 and 2) as a supplement to intensive insulin therapy. In Phase 3 clinical studies, this molecule has been shown, when used as a supplement to insulin therapy, to improve HbA1c and reduce prandial insulin use and weight gain compared to insulin alone.
Unfortunately, to the extent that insulin therapy for type 1 diabetes requires high patient compliance, with frequent glycemia monitoring and at least four injections of insulin daily, the introduction of an additional injectable treatment is often synonymous with a significant deterioration in quality of life and an increase in the cost of treatment, which can lead to its abandonment.
The combination of pramlintide with insulin could therefore prove to be an elegant solution to maximize the medical benefit whilst maintaining patient compliance and controlling health costs. Developing such a combination is Adocia’s objective for Pramlintide Insulin program.
Currently, the prandial insulin and pramlintide formulations are not compatible, due to differences in pH-dependent stability and solubility profiles.
Adocia has therefore used its expertise to develop a formulation approach to combine both hormones. Specifically, Adocia is using A21G human insulin analog, the main circulating metabolite of insulin glargine, which has a prandial insulin profile and is stable in the same range of pH as pramlintide.
Our formulation strategy, based on previous clinical results from the co-administration of pramlintide and prandial insulin showing a clear medical benefit when hormones are administered separately, could reduce development time. The ADO09 Pramlintide Insulin project could also support a competitive pricing strategy, taking advantage of proteins already approved and in the public domain.
ADO09 (PRAMLINTIDE INSULIN): MAIN CLINICAL RESULTS
In June 2019, Adocia started a 3-week Phase 1b study of ADO09, a ready-to-use, fixed ratio co-formulation of pramlintide (Symlin®, AstraZeneca), the only FDA-approved analog of amylin, and a prandial insulin.
This study aims to assess safety and efficacy of ADO09 compared to prandial insulin analog Novolog® (insulin aspart, Novo Nordisk) in subjects with type 1 diabetes using a multiple daily injection regimen over a 24-day period of treatment.
Adocia previously announced positive first-in-human topline clinical data for ADO09 in April 2019 (please, see details below).
“Since the first clinical results with ADO09 were highly similar to the results obtained with the separate injections of prandial insulin and pramlintide, we were encouraged to rapidly advance the program into multiple daily dosing, including a period in the outpatient setting , which will help to lay the foundation for later-stage development.” said Dr. Olivier Soula, Adocia’s Deputy General Manager and Director of R&D.
Results of this study are expected in Q4 2019.
In April 2019, Adocia announced positive pharmacodynamic and safety topline results from the Phase 1 study of ADO09, the ready-to-use co-formulation of pramlintide and A21G human insulin analog. In this study, ADO09 (pramlintide and recombinant human insulin) showed a significant 85% decrease in blood glucose excursion over the first two hours after the meal compared to Humalog® (prandial insulin lispro, Eli Lilly). ADO09 also showed similar glucose control over the first two hours after the mealcompared to separate injections of Symlin® and Humulin®. All treatments were well tolerated.
“The first clinical results obtained with ADO09 are highly encouraging, as they are very similar to the results obtained with a co-administration of human insulin and pramlintide. I thus expect this co-formulation to deliver a similar medical benefit to the one found for pramlintide when given in a separate injection with prandial insulin, still the only FDA-approved adjunctive treatment for people with type 1 diabetes.” said Prof. Robert Ratner, Professor of Medicine, Georgetown University School of Medicine, Washington DC. “I believe this combination has the potential to finally deliver on the promise of pramlintide for a large number of patients, by addressing the significant unmet need for tighter post-prandial control and lower glycemic variability without the burden associated with another product and a higher number of injections.”
Based on these very promising first clinical results, Adocia intends to intend the next clinical trial in H1 2019.