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Pentosan Polysulfate Sodium and Meclofenamic Acid as Treatments in Patients With Psychotic Disorders

A Pilot Open-label Trial of Pentosan Polysulfate Sodium and Meclofenamic Acid As Adjunctive Treatments in Patients With Psychotic Disorders

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02930005
Enrollment
8
Registered
2016-10-11
Start date
2015-08-07
Completion date
2016-10-06
Last updated
2019-03-26

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

Conditions

Psychotic Disorders, Schizophrenia, Schizoaffective Disorder, Bipolar Disorder

Keywords

Psychotic, Schizophrenia, Schizoaffective, Bipolar

Brief summary

This study evaluates the feasibility of administering meclofenamic acid or pentosan polysulfate sodium as an adjunctive treatment to patients diagnosed with a psychotic disorder. Half of participants will receive meclofenamic acid, while the other half will receive polysulfate sodium.

Detailed description

Chronic, low-grade brain inflammation is involved in the development of schizophrenia and other psychotic disorders. Medications with anti-inflammatory properties, like meclofenamic acid and pentosan polysulfate may help to reduce brain inflammation and serve as a treatment of psychotic disorders.

Interventions

DRUGMeclofenamic acid

Sponsors

The University of Texas Health Science Center, Houston
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to 60 Years
Healthy volunteers
No

Inclusion criteria

* Diagnosis of schizophrenia, schizoaffective disorder, schizophreniform disorder, bipolar I disorder, delusional disorder, other specified schizophrenia spectrum and other psychotic disorders, unspecified schizophrenia spectrum and other psychotic disorders * Negative pregnancy test in females of childbearing age

Exclusion criteria

* Urine drug screen positive for psychostimulants such as cocaine, amphetamines and ecstasy * Any infection, neoplasm, autoimmune disease or other primary inflammatory condition (3) Previous diagnosis of intellectual disability or dementia * Current treatment with heparin * Use of or allergy to non-steroidal anti-inflammatory agent or pentosan polysulfate sodium * Current or anticipated corticosteroid use * History of peptic ulcer disease, gastro esophageal reflux disease, or gastrointestinal bleeding * Those on warfarin or any anticoagulant * Current treatment with lithium or asthma medication * Individuals with pre-existing liver, cardiac, or kidney disease

Design outcomes

Primary

MeasureTime frameDescription
Change in Cognitive Function as Assessed by the NIH Toolbox Cognitive Test Battery (NCTB) Composite Scorebaseline, 8 weeksA higher composite score on the NCTB indicates better cognitive performance. The NCTB consists of 7 tests and 8 sub-scores, and the NIH Toolbox software calculates total composite score by averaging the normalized scores of each subscale and then deriving scale scores. The NIH Toolbox Scoring and Interpretation Guide (found online) doesn't indicate a total composite score range (because the score ranges are infinite), but describes scoring as follows: To get a normalized composite score, the score of the test taker is compared to the scores in the NIH Toolbox nationally representative normative sample. The mean score is 100 and the standard deviation (SD) is 15. A score at or near 100 indicates average ability compared with others. Scores around 115 suggest above-average ability. Scores around 130 suggest superior ability (in the top 2 percent nationally). A score around 85 suggests below-average ability. A score in the range of 70 or below suggests significant impairment.

Secondary

MeasureTime frameDescription
Change in Severity of Psychotic Symptoms as Assessed by Positive and Negative Syndrome Scale (PANSS)baseline, 8 weeksChange in the Positive and Negative Syndrome Scale (PANSS) total score after 8 weeks. The range of scores on the PANSS is 30 to 210, with higher scores associated with better outcomes.

Countries

United States

Participant flow

Participants by arm

ArmCount
Meclofenamic Acid
150mg meclofenamic acid daily for 8 weeks Meclofenamic acid
2
Pentosan Polysulfate Sodium
300mg of pentosan polysulfate sodium daily for 8 weeks Pentosan polysulfate sodium
6
Total8

Withdrawals & dropouts

PeriodReasonFG000FG001
Overall StudyLost to Follow-up15

Baseline characteristics

CharacteristicMeclofenamic AcidTotalPentosan Polysulfate Sodium
Age, Categorical
<=18 years
0 Participants0 Participants0 Participants
Age, Categorical
>=65 years
0 Participants0 Participants0 Participants
Age, Categorical
Between 18 and 65 years
2 Participants8 Participants6 Participants
Age, Continuous20.5 years
STANDARD_DEVIATION 3.5
24.6 years
STANDARD_DEVIATION 7.8
26 years
STANDARD_DEVIATION 8.6
Region of Enrollment
United States
2 Participants8 Participants6 Participants
Sex: Female, Male
Female
0 Participants2 Participants2 Participants
Sex: Female, Male
Male
2 Participants6 Participants4 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
0 / 20 / 6
other
Total, other adverse events
0 / 21 / 6
serious
Total, serious adverse events
0 / 20 / 6

Outcome results

Primary

Change in Cognitive Function as Assessed by the NIH Toolbox Cognitive Test Battery (NCTB) Composite Score

A higher composite score on the NCTB indicates better cognitive performance. The NCTB consists of 7 tests and 8 sub-scores, and the NIH Toolbox software calculates total composite score by averaging the normalized scores of each subscale and then deriving scale scores. The NIH Toolbox Scoring and Interpretation Guide (found online) doesn't indicate a total composite score range (because the score ranges are infinite), but describes scoring as follows: To get a normalized composite score, the score of the test taker is compared to the scores in the NIH Toolbox nationally representative normative sample. The mean score is 100 and the standard deviation (SD) is 15. A score at or near 100 indicates average ability compared with others. Scores around 115 suggest above-average ability. Scores around 130 suggest superior ability (in the top 2 percent nationally). A score around 85 suggests below-average ability. A score in the range of 70 or below suggests significant impairment.

Time frame: baseline, 8 weeks

ArmMeasureValue (NUMBER)
Meclofenamic AcidChange in Cognitive Function as Assessed by the NIH Toolbox Cognitive Test Battery (NCTB) Composite Score31.96 score
Pentosan Polysulfate SodiumChange in Cognitive Function as Assessed by the NIH Toolbox Cognitive Test Battery (NCTB) Composite Score0.96 score
Secondary

Change in Severity of Psychotic Symptoms as Assessed by Positive and Negative Syndrome Scale (PANSS)

Change in the Positive and Negative Syndrome Scale (PANSS) total score after 8 weeks. The range of scores on the PANSS is 30 to 210, with higher scores associated with better outcomes.

Time frame: baseline, 8 weeks

ArmMeasureValue (NUMBER)
Meclofenamic AcidChange in Severity of Psychotic Symptoms as Assessed by Positive and Negative Syndrome Scale (PANSS)-11 score
Pentosan Polysulfate SodiumChange in Severity of Psychotic Symptoms as Assessed by Positive and Negative Syndrome Scale (PANSS)-22 score

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026