Our Science

Helping Alzheimer’s patients to live a better life

Our lead program is currently in a Phase 2/3 clinical study, targeting agitation associated with Alzheimer’s disease dementia.

The Problem

Neuropsychiatric symptoms of dementia (NPS) are the leading cause of institutionalization of people with Alzheimer’s disease (AD) and other dementias.

>90%

of AD dementia patients have neurpsychiatric symptoms

Neurodegenerative diseases like AD are characterized by progressive neuronal cell death resulting in overall brain atrophy.

At the advanced stages of the disease, with more widespread and generalized brain atrophy, patients experience a wider spectrum of symptoms that often present as overlapping clusters.

This leads to symptoms including agitation/aggression, anxiety, depression, apathy, irritability, disinhibition, and delusions/hallucinations, which together form a complex cluster of neuropsychiatric symptoms (NPS) in dementia.

Our Approach

Our lead programme combines two novel modes of action to deliver Deraphan, a broad and synergistic treatment.
This targets various symptoms, without targeting dopamine.

Dextromethorphan

Calms brain overactivity by blocking NMDA receptors

Has been used safely in medicine for over 60 years.

Deramciclane

Slows degradation of Dextromethorphan by inhibiting CYP2D6 in the liver

Blocks 5-HT2A/2C receptors which may have impact on several neuropsychiatric symptoms

No safety concerns identified in >2,500 subjects tested exposed to Deramciclane for up to 1 year

Novel Combination

A coordinated brain–body approach to treating neuropsychiatric symptoms

Steps images Steps images Steps images

When combined, this pharmacological approach offers the opportunity to treat neuropsychiatric symptoms associated with dementia without affecting the dopaminergic system, avoiding an acceleration of cognitive decline, and increased risk for morbidity and mortality.

Safe &
tolerable

Non-toxic
profile

Long-term
usability

Patient-centered
outcomes

Lead Indication

Exciva's lead Indication has now advanced into a clinical Phase 2/3 study on for agitation in Alzheimer's disease dementia patients – the SERENADA study (Serenity in Alzheimer’s Disease Agitation).

SERANADA Study
Expansion

Deraphan has the potential to target other symptoms in patients with AD.

Psychosis
Insomnia
Anxiety
Apathy