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NCT05643196

Focused Ultrasound Modulation of the Globus Pallidus Interna in Schizophrenia

Completed Phase 2 Results posted Last updated 30 May 2025
What this trial tests

Phase 2 trial testing PLIFUS in Schizophrenia in 15 participants. Completed in 1 April 2024.

Timeline
6 April 2023
Primary endpoint
25 March 2024
1 April 2024

Quick facts

Lead sponsorNYU Langone Health
PhasePhase 2
StatusCompleted
Study typeINTERVENTIONAL
Allocationrandomized
Designcrossover
Maskingdouble
Primary purposetreatment
Enrollment15
Start date6 April 2023
Primary completion25 March 2024
Estimated completion1 April 2024
Sites2 locations across United States

Drugs / interventions tested

Conditions studied

Sponsor

NYU Langone Health — full company profile →

Who can join

Adults 18 to 50, any sex, with Schizophrenia or Schizophrenia Schizoaffective. Patients with the condition only — healthy volunteers not accepted.

Results — posted to ClinicalTrials.gov

Per-arm endpoint measurements with 95% confidence intervals where reported. Source: trial results section.

Change in Auditory Hallucinations Rating Scale (AHRS) Score From Baseline Secondary · Baseline, Final Study Visit (Day 14-16)

A 7-item scale developed to measure specific characteristics of auditory hallucinations (frequency, reality, loudness, number of voices, length, attentional salience, distress level). Each item is rated on a separate Likert scale. The total score, ranging from 0 to 44, indicates the overall severity of the hallucinations, with higher scores suggesting more severe symptoms.

GroupValue95% CI
PLIFUS-1.4± 2.4
Sham-1± 1.9
Change in Delusions Experience Sampling Assessment (DESA) Score From Baseline Secondary · Baseline, Final Study Visit (Day 14-16)

A 4-item scale (conviction, distress, preoccupation, disruption) used to assess moment-to-moment experience and detect more rapid changes of delusions. Participants are asked to rate the same delusional belief at the moment on a 7-point Likert scale (1 (not at all) to 7 (very much)). The total score is the sum of responses ranging from 1-28; higher scores indicate more severe symptoms.

GroupValue95% CI
PLIFUS-1± 3.4
Sham0.3± 2.9

Adverse events — posted to ClinicalTrials.gov

Time frame: AE data was collected for all events with start dates occurring any time after informed consent was obtained until 7 (for non-serious AEs) or 30 days (for SAEs) after the last day of study participation.. Reporting threshold: 0%. Adverse-event reports describe events observed during the trial — not all are caused by the drug.

PLIFUS
Serious: 0/10 (0%)
Deaths: 0/10
Sham
Serious: 0/10 (0%)
Deaths: 0/10
Other adverse events (25 terms — click to expand)

ReactionSystemPLIFUSSham
Fatigue/weaknessGeneral disorders
Anxiety/worryPsychiatric disorders
DelusionPsychiatric disorders
HallucinationsPsychiatric disorders
HeadacheNervous system disorders
InsomniaNervous system disorders
Nausea/vomitingGastrointestinal disorders
Sedation/drowsinessNervous system disorders
Abnormal muscle movementNervous system disorders
Alcohol cravingPsychiatric disorders
Appetite increaseGastrointestinal disorders
Ataxia/impaired coordinationNervous system disorders
Back painMusculoskeletal and connective tissue disorders
DerealizationPsychiatric disorders
DiarrheaGastrointestinal disorders
Dizziness/faintnessNervous system disorders
Excitement/nervousnessPsychiatric disorders
MoCA Total Score DecreaseNervous system disorders
Mood deteriorationPsychiatric disorders
Muscle crampsMusculoskeletal and connective tissue disorders
Nasal congestionRespiratory, thoracic and mediastinal disorders
Sensory perception abnormalityNervous system disorders
Stomach/abdominal discomfortgGastrointestinal disorders
Tachycardia/palpitationsCardiac disorders
Tinnitus/difficulty hearingEar and labyrinth disorders

Data from ClinicalTrials.gov NCT05643196 adverse events section.

Sponsor's own description

This is a single-site, phase 2, sham-controlled random-order cross-over pilot trial of PLIFUS targeting the right GPi in individuals with schizophrenia. Twelve individuals with schizophrenia who report continuous hallucinations or delusions of mild or greater severity will receive one session of PLIFUS and one session of sham PLIFUS in random order, one week apart. If no effect of PLIFUS is detected on measures of functional connectivity or psychotic symptoms in the first four completers, the trial will be changed to 3 sessions of PLIFUS or sham administered over 5 days.

Publications & conference data

No peer-reviewed publications indexed yet for this trial. Completed trials usually publish results within 12-18 months.

Verify or expand the search:

Other recruiting trials for Schizophrenia

Currently open trials in the same condition.

Other NYU Langone Health trials

Trials by the same sponsor.

Verify against primary sources

Data sources for this page

Drug Landscape aggregates and links these public records for informational use only. Always verify against the primary source before clinical or regulatory decisions. Canonical URL: https://druglandscape.com/trial/NCT05643196.

Primary sources · FDA · ClinicalTrials.gov · EMA · SEC EDGAR · ChEMBL · Wikidata · full sourcing