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"A double blind, randomized, placebo-controlled, adaptive 24-week Phase II trial to evaluate the efficacy of vafidemstat in negative symptoms and cognitive impairment associated with schizophrenia" (EVOLUTION STUDY)

Status
Recruiting
Phases
Phase 2
Study type
Interventional
Source
EU CTIS
Registry ID
CTIS2023-507372-42-00
Acronym
CL09-ORY-2001
Enrollment
84
Registered
2024-10-18
Start date
2021-09-20
Completion date
Unknown
Last updated
2025-11-24

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Schizophrenia

Brief summary

Efficacy: •To evaluate the change on the PANSS Factor Score for Negative Symptoms (PANSS-FSNS), from baseline to week 24, between the active treatment arm and the placebo arm.

Detailed description

Efficacy: To evaluate the change from baseline to week 24 on the Brief Assessment in Cognition in Schizophrenia (BACS), To evaluate the change over time on the PANSS Factor Score for Negative Symptoms (FSNS), To evaluate the change over time on the BACS, To evaluate the difference from baseline to week 24, as well as change over time on the following: a)PANSS Positive Symptoms Subscale (PANSS-PSS) b)PANSS Total Score c)Clinical Global Impression – Severity (CGI-S) for Schizophrenia d)Personal and Social Performance Scale (PSP) ..., To evaluate at every study visit, from baseline to week 24, as well as change over time, on the following: a) Number of visits to Health Care services (mental health emergency care services and hospitalizations) b) Changes in the stable background therapy from Screening visit, including the change to a new atypical antipsychotic treatment, the addition of a second atypical antipsychotic treatment to the background therapy, or the initiation of any medication for their schizophrenia or ...., Safety:To evaluate the following safety endpoints throughout the study, from baseline to week 28: a)Number, frequency, and severity of Treatment Emergent Adverse Events (TEAEs) b)Number, frequency, and severity of Serious TEAEs c)Number and percentage of withdrawn participants due to TEAEs d)Use of concomitant medications e)Frequency of physical examination parameters, vital signs...

Interventions

DRUGPlacebo capsules will be supplied as Swedish orange colored size 3 capsules that look identical to the vafidemstat capsules but contain no drug substance.

Sponsors

Oryzon Genomics S.A.
Lead SponsorINDUSTRY

Eligibility

Sex/Gender
All
Age
18 Years to 64 Years

Design outcomes

Primary

MeasureTime frame
Efficacy: •To evaluate the change on the PANSS Factor Score for Negative Symptoms (PANSS-FSNS), from baseline to week 24, between the active treatment arm and the placebo arm.

Secondary

MeasureTime frame
Efficacy: To evaluate the change from baseline to week 24 on the Brief Assessment in Cognition in Schizophrenia (BACS), To evaluate the change over time on the PANSS Factor Score for Negative Symptoms (FSNS), To evaluate the change over time on the BACS, To evaluate the difference from baseline to week 24, as well as change over time on the following: a)PANSS Positive Symptoms Subscale (PANSS-PSS) b)PANSS Total Score c)Clinical Global Impression – Severity (CGI-S) for Schizophrenia d)Personal and Social Performance Scale (PSP) ..., To evaluate at every study visit, from baseline to week 24, as well as change over time, on the following: a) Number of visits to Health Care services (mental health emergency care services and hospitalizations) b) Changes in the stable background therapy from Screening visit, including the change to a new atypical antipsychotic treatment, the addition of a second atypical antipsychotic treatment to the background therapy, or the initiation of any medication

Countries

Spain

Outcome results

None listed

Source: EU CTIS · Data processed: Feb 4, 2026