KL1333: Innovative therapy in late-stage development by the end of 2022
Project status: Financing enables start of the potentially registrational Phase 2 study FALCON
KL1333 has been evaluated in both healthy volunteers and in patients and has been granted orphan drug designation in both the United States and Europe. The global FALCON study is expected to start screening patients in the second half of 2022. The company plans to recruit the first 40 patients in the study and progress these patients to a key interim analysis in late 2023/early 2024.
Mitochondrial disease target population: MELAS-MIDD, KSS-CPEO and MERRF
KL1333 is being developed as a treatment for a subset of adult primary mitochondrial disease patients suffering from multiple debilitating symptoms, including chronic fatigue and myopathy. Diagnoses can include MELAS-MIDD and KSS-CPEO spectrum disorders as well as MERRF syndrome.
Mechanism of action: NAD⁺/NADH modulation
KL1333 is a potent modulator of the cellular levels of NAD+and NADH, central co-enzymes in the cell’s energy metabolism. KL1333 has in preclinical models demonstrated to increase mitochondrial energy output, have long-term beneficial effects on energy metabolism, strengthen muscle function and improve biomarkers of mitochondrial disease.
NV354: First-in-class therapeutic approaching clinical development
Project status: Compilation of regulatory documentation to support clinical entrance
NV354 data is being assembled for a clinical trial application.
PMD target population: Leigh syndrome, MELAS, and LHON
One of the most common causes of mitochondrial diseases relates to Complex I dysfunction, i.e. when energy conversion in the first of the five protein complexes in the mitochondrion that are essential for effective energy conversion does not function normally. This is apparent in disorders including Leigh syndrome, MELAS, or LHON.
NV354 is developed for chronic oral treatment of Leigh syndrome, a severe primary mitochondrial disease that usually debuts at one to two years of age. The disease is fatal and children usually die before age 5. Symptoms include developmental delay, psychomotor regression, and hypotonia. There are currently no approved medicines.
The unique mechanism of action and high brain uptake may be utilized to develop NV354 for the treatment of MELAS in children and adolescents with neurological symptoms, and for the treatment of LHON. MELAS is a serious disease with symptoms such as muscle weakness, diabetes, fatigue, epilepsy, other severe neurological effects, and shortened life span. LHON is a disease that causes sudden severe permanent visual impairment and can lead to blindness in both eyes.
Mechanism of action: Energy replacement
The project is based on an Abliva innovation in which the body’s own energy substrate, succinate, is made available in the cell via a prodrug technology. A prodrug is an inactive drug that is activated first when it enters the body by the transformation of its chemical structure.
Abliva’s discovery projects focus on deeper understanding of the mechanisms for our unique chemistry platforms, and the development of next-generation compounds for primary mitochondrial diseases.
Abliva develops medicines for the treatment of primary mitochondrial diseases. These congenital, rare and often very severe diseases occur when the cell’s energy provider, the mitochondria, do not function properly. The portfolio includes projects at different stages and ranges from early discovery phase to clinical phase.
Primary mitochondrial diseases
Primary mitochondrial diseases are metabolic diseases that affect the cells’ ability to convert energy. The diseases can manifest very differently depending on the organs impacted and the number of dysfunctional mitochondria in that organ. Historically viewed as clinical syndromes, our knowledge about the various mutations underlying mitochondrial diseases has increased, improving our ability to identify and treat these patients. It is estimated that 125 persons per million have a primary mitoch …