CVN293

NEURODEGENERATIVE DISORDERS

Potentially a first in class, oral non-dopaminergic therapy for the broad treatment of the signs and symptoms (motor and non-motor) of Parkinson’s disease.

Suppresses the NRLP3 inflammasome signaling and reduces production of proinflammatory cytokines in the CNS, without effecting the peripheral immune response.

NETSseq identified KCNK13 as a novel target in the microglia, without significant expression in peripheral immune cells, that regulates NLRP3 inflammasome activation.

CVN293 targets KCNK13, a two-pore potassium channel identified via NETSseq, which shows elevated expression levels in multiple neurodegenerative disorders.

KCNK13 selectively modulates neuroinflammation in microglia. It represents a novel point of intervention upstream of NLRP3 inflammasome activation, suggesting therapeutic potential across a range of neurodegenerative disorders.

GPR6 target findings

Adjunctive & Monotherapy

Solengepras is being developed for use across the spectrum of Parkinson's disease, both as an adjunctive treatment as well as for monotherapy use. Cerevance is currently conducting a Phase 2 clinical trial of solengepras (ASCEND) as a monotherapy treatment in early, untreated patients with Parkinson's disease. Cerevance has also initiated a pivotal Phase 3 clinical trial of solengepras (ARISE) as an adjunctive treatment in patients experiencing motor fluctuations.

CVN239 - Phase 1 Study

Solengepras 150 mg dose cohort demonstrated a statically significant reduction of 1.3 hours (p=0.02) in average daily OFF time versus placebo after only 27 days of treatment which represented a1.6-hour (p<0.0001) improvement from baseline.

Solengepras 150 mg dose cohort was associated with a dose-dependent improvement trend on the Unified Parkinson’s Disease Rating Scale (UPDRS) Part II score (activities of daily living) versus placebo. Trends to improvement in the UPDRS Part II after treatment with the solengepras 150 mg dose were seen in as little as four weeks, suggesting that solengepras may have broader benefits on the activities of daily living for PD patients beyond motor improvements.

Solengepras did not increase daytime sleepiness, as measured by the Epworth Sleepiness Scale (ESS), and was instead associated with a trend towards reduction in daytime sleepiness with the solengepras 150 mg dose versus placebo.

Solengepras was generally well-tolerated with few adverse events and low rates of dopaminergic adverse events across both dose cohorts.

CVN293 was generally well-tolerated in healthy participants with single doses up to 1000mg and multiple doses of up to 375mg twice daily for 14 days.

No serious adverse events were reported and all participants completed the study. All related treatment-emergent adverse events were mild.

Dose-dependent increases in CVN293 exposure were observed, achieving plasma concentrations that align with pharmacologically relevant levels as indicated by preclinical studies.

CSF sampling demonstrated high brain penetrance of CVN293.

Safety

Well tolerated in the Phase 2 adjunctive study, with few adverse side effects, including a low rate of dopaminergic-related side effects.

Neurodegenerative Disorders

Neuroinflammation has been implicated in the pathology of a range of neurodegenerative disorders, including Frontotemporal Dementia (FTD), ALS, Alzheimer’s Disease, and Parkinson’s Disease. However, reducing neuroinflammation with concurrent systemic immunosuppression is associated with challenges due to the potential risks and side effects. Therefore, there is a critical need to develop brain-targeted therapies to address neuroinflammation without having a negative impact on the peripheral immune system. We plan to initiate a Phase 2 clinical trial with CVN293 in adults with behavioral variant FTD.