ClinicalTrials.gg
Not yet recruitingNCT06474286Updated Sep 17, 2026

Prucalopride for Cognitive Functioning in Schizophrenia

An interventional study of Prucalopride 1 MG in Schizophrenia, sponsored by University of Pittsburgh. Not yet recruiting at 1 site in India. Open to participants aged 18 Years to 55 Years. Per ClinicalTrials.gov, last updated 2026-09-17.

Sponsored by University of Pittsburgh · Not applicable, Interventional, and Treatment

Phase
Not applicable
Study type
Interventional
Enrollment
34
Allocation
Not applicable
Ages
18 Years to 55 Years
Sex
All
01

Study summary

A core component of schizophrenia is neurocognitive impairment. The cognitive deficits are prominently seen in memory, attention, working memory, problem solving, processing speed and social cognition. Atypical antipsychotics continue to be the mainstay of treatment in schizophrenia.

Promising areas for future research include search for new compounds for cognition enhancement. Prucalopride, a highly selective 5HT4 receptor agonist is a potential drug and its effect on cognition in patients with schizophrenia needs to be studied.

An open label, pilot study involving 34 patients with schizophrenia diagnosed as per DSM 5 criteria. The participants will receive Tab. Prucalopride one milligram (1 mg) for a duration of four weeks along with their existing treatment regimen with antipsychotics.

Assessments includes PANSS and BACS at baseline and at the end of 4 weeks. The effect of prucalopride on cognitive functioning in patients with schizophrenia is studied.

Read the detailed description

Prucalopride acts as a high affinity, high selective 5-hydroxy tryptamine receptor agonist. It is a gastrointestinal prokinetic drug predominantly used for constipation. In this study, the effect of prucalopride on cognitive functioning in schizophrenia is studied.

Participants who are diagnosed with schizophrenia, attending consultation at the outpatient department (OPD) of Psychiatry at K.S. Hegde Hospital and Nitte Rural Medical and Psychiatry Centre will be invited to participate in the study through their treating consultant. Interested participants and their Legally acceptable representative (LAR) will be administered the written informed consent. The participant will be screened and on fulfilling the inclusion and exclusion criteria will be enrolled into the study.

Socio demographic details will obtained from the participants. Baseline laboratory analysis which includes complete blood count, random blood sugar, liver function test, renal function test, urine analysis, ECG will be done for all the participants to screen for fitness. Urine pregnancy test will be done for women participants in the reproductive age group.

Positive and Negative Syndrome Scale (PANSS) will be administered to the participants.

Brief assessment of Cognition in Schizophrenia (BACS) will be administered in the following order i. List learning ii. Digit sequencing task iii. Token motor task iv. Verbal fluency: Category Instances, Controlled Oral Word Association Test v. Tower test vi. Symbol coding The study drug Tab. Prucalopride 1 mg (30 tablets) will be dispensed to the participant. They will be explained to take one tablet of 1 mg Prucalopride per oral in the morning. The participants will continue their antipsychotic regimen as per orders of their consultant and will continue to purchase their psychiatric medications as earlier. At the end of week 1, participants will be assessed for side effects via telephonic conversation.

At the end of 4 weeks, the participants will be scheduled for the assessments. Laboratory analysis, PANSS and BACS will be administered. Any side effects to the drug will be assessed.

02

Conditions studied

  • Schizophrenia

Keywords

  • Schizophrenia
  • neurocognitive impairment
  • cognitive deficits
  • Prucalopride
03

In context

Schizophrenia

3,563 studies on the registry are indexed under Schizophrenia; 491 are open to participants now.

This study's planned enrollment of 34 is below the median of 71 across 2,944 interventional studies indexed under Schizophrenia.

Browse Schizophrenia studies →

Lead sponsor

University of Pittsburgh is the lead sponsor of 1,419 studies on the registry; 168 are open to participants now.

Of its 9 completed or terminated interventional studies of FDA-regulated products, 4 (44%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 55 Years
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Diagnosed as schizophrenia by DSM 5 criteria using Structured Clinical Interview for DSM disorders
  • Age between 18 to 55 years
  • A minimum of one year of duration of illness
  • Clinically stable with a stable therapeutic dose for at least 3 months prior to the recruitment
  • Participants who can read and write English or Kannada

Exclusion criteria

Exclusion Criteria:

  • Participants who are acutely symptomatic and are uncooperative for assessments
  • Co morbid with other psychiatric illness including mood disorders and substance use disorders except tobacco
  • Participants already diagnosed with Intellectual Disability Disorder, head injury
  • Participants administered MECT (modified electroconvulsive therapy)
  • Participants with sensory impairments
  • Use of Donepezil, Rivastigmine, Memantine, Benzodiazepines
  • Participants already on prucalopride
  • Participants with to prucalopride
  • Diagnosed with gastrointestinal disorders like Ulcerative colitis, Crohn's disease, Intestinal ulcers
  • Use of concomitant herbal remedies, alternative medicines
  • Women who are pregnant or lactating
  • Current history of suicidal ideation, intention or attempts
Terms in these criteria, in plain language(1)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Contraindication

A reason a treatment, test or procedure should not be given to a particular person, such as an allergy, another illness or a medicine they take.

05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
34 participants (estimated)

Study arms

  • Experimental
    Tab. Prucalopride

    The study drug Tab. Prucalopride 1 mg (30 tablets) will be dispensed to the participant. They will be explained to take one tablet of 1 mg Prucalopride per oral in the morning.

    Drug: Prucalopride 1 MG

Interventions

  • The study drug Tab. Prucalopride 1 mg (30 tablets) will be dispensed to the participant. The drug will be procured at the local site manufactured in India only.They will be explained to take one tablet of 1 mg Prucalopride per oral in the morning. The participants will continue their antipsychotic regimen as per orders of their consultant and will continue to purchase their psychiatric medications as earlier. At the end of week 1, participants will be assessed for side effects via telephonic conversation.

    Also known as: 5HT4 receptor agonist

06

What researchers measure

Primary outcomes

  1. Positive and Negative Syndrome Scale for Schizophrenia (PANSS )Score

    There will be change is PANSS score at the end of the study. The score is to assess symptoms. Lowest score is 30 and highest is 210.

    Time frame: PANSS scores measured at baseline and at the end of 4 weeks

  2. Cognitive Functioning (List learning)

    To study the change in the cognitive functioning as measured by list learning after intervention. Scores range between 0 and 30.

    Time frame: Baseline and and at the end of 4 weeks

  3. Cognitive Functioning (Digit sequencing task)

    To study the change in the cognitive functioning as measured by Digit sequencing task after intervention, It ranges from 0 to 28 points

    Time frame: Baseline and and at the end of 4 weeks

  4. Cognitive Functioning (Token motor task)

    To study the change in the cognitive functioning as measured by Token motor task after intervention. It ranges from 0 to 100 points,

    Time frame: Baseline and and at the end of 4 weeks

  5. Cognitive Functioning (Tower test)

    To study the change in the cognitive functioning as measured by Tower test after intervention

    Time frame: Baseline and and at the end of 4 weeks

  6. Cognitive Functioning (Symbol coding)

    To study the change in the cognitive functioning as measured by Symbol coding after intervention. It ranges from 0 to 22 points.

    Time frame: Baseline and and at the end of 4 weeks

07

Study locations

1 site
  • K S Hegde Medical Academy,
    Mangalore, Karnataka 575018, India
    • Associate Professor · Contactdrsmitha9@gmail.com · +918618261610
    • Professor and Head · Contactanilpsychiatry@yahoo.co.in · +919818670768
    • Shrinivasa U Bhat, MD · Sub investigator
    • Smitha Tarachandra, MD · Principal investigator
    • Anil Kakunje, MD · Sub investigator
08

References and documents

Individual participant data

Plan to share: Yes — Individual participant data that underlie the results reported in the article, after deidentification (text, tables, figures, and appendices).

Supporting information: Study protocol, Statistical analysis plan

Time frame: One year after publication of this study.

Access criteria: For individual participant data, meta-analysis.

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Sep 17, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT06474286
Responsible party
Vishwajit Nimgaonkar, MD PhD (Professor, University of Pittsburgh) — Principal investigator
First posted
Jun 25, 2024
Start date
May 31, 2027 (estimated)
Primary completion
May 31, 2028 (estimated)
Completion
Dec 31, 2028 (estimated)
Last update
Sep 17, 2026

Study contacts

Vishwajit L Nimgaonkar, MD, PhD
Contact
vishwajitnl@upmc.edu
4127265164
Triptish Bhatia, PhD
Contact
trb16@pitt.edu
+919910107210
Vishwajit L Nimgaonkar, MD, PhD
principal investigator · University of Pittburgh

Oversight

Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is not yet recruiting, as verified in Sep 2026. You cannot join it, but the record below documents what was studied.

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