NCT04015596

Brief Summary

This project aims to rigorously evaluate a potential treatment for inflammation-related Obsessive-Compulsive Disorder (OCD) symptoms in children. To accomplish this goal, the investigators will conduct a double-blind, randomized, placebo-controlled trial of Naproxen Sodium, a nonsteroidal anti-inflammatory drug (NSAID) in participants diagnosed with Pediatric Autoimmune Neuropsychiatric Disorder Associated with Streptococcal infections (PANDAS). This research fills a gap in the empirical evidence base for the treatment of PANDAS, and will add to a growing literature of empirically-derived practices for PANDAS.

Trial Health

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Monitor

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
5

participants targeted

Target at below P25 for phase_4

Timeline
Completed

Started Oct 2020

Longer than P75 for phase_4

Geographic Reach
1 country

1 active site

Status
terminated

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

June 11, 2019

Completed
1 month until next milestone

First Posted

Study publicly available on registry

July 11, 2019

Completed
1.3 years until next milestone

Study Start

First participant enrolled

October 20, 2020

Completed
4.5 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

April 30, 2025

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

April 30, 2025

Completed
Last Updated

September 25, 2025

Status Verified

March 1, 2023

Enrollment Period

4.5 years

First QC Date

June 11, 2019

Last Update Submit

September 22, 2025

Conditions

Keywords

PANDASChildrenObsessive-Compulsive DisorderAnxietyNSAID

Outcome Measures

Primary Outcomes (2)

  • Children's Yale-Brown Obsessive-Compulsive Scale, 2nd Edition (CY-BOCS-II)

    The CY-BOCS-II is a clinician-rated measure to assess obsessive-compulsive symptom severity. This results in two subscale total scores, Obsessions and Compulsion, each ranging from 0-25, with a higher score indicating more symptom severity. These subscale scores are summed to provide a total score, ranging from 0 to 50, that is used to measure overall OCD symptom severity.

    Pre- to Post-8 week treatment

  • Children's Yale-Brown Obsessive-Compulsive Scale, 1st Edition (CY-BOCS-I)

    The CY-BOCS-I is a clinician-rated measure to assess obsessive-compulsive symptom severity. This results in two subscale total scores, Obsessions and Compulsion, each ranging from 0-20, with a higher score indicating more symptom severity. These subscale scores are summed to provide a total score, ranging from 0 to 40, that is used to measure overall OCD symptom severity.

    Pre- to Post-8 week treatment

Secondary Outcomes (2)

  • Changes in C reactive protein pre- and post-treatment between groups

    Pre- to Post-8 week treatment

  • Changes in erythrocyte sedimentation rate pre- and post-treatment between groups

    Pre- to Post-8 week treatment

Study Arms (2)

Intervention

EXPERIMENTAL

Participants receive Naproxen Sodium.

Drug: Naproxen Sodium

Placebo

PLACEBO COMPARATOR

Participants receive placebo.

Other: Placebo

Interventions

Dosed by weight (10mg/kg), twice daily, for 8 weeks

Intervention
PlaceboOTHER

Participants take placebo pills twice daily, for 8 weeks.

Placebo

Eligibility Criteria

Age6 Years - 15 Years
Sexall
Healthy VolunteersNo
Age GroupsChild (0-17)

You may qualify if:

  • significantly interfering Obsessive-Compulsive Disorder (OCD) symptoms
  • ages 6- to 15-years-old
  • new-onset of OCD symptoms within the previous 18 months
  • sufficient fluency of English to understand study staff, procedures and questionnaires,
  • able to take medication in pill form
  • parent/legal guardian who can provide informed consent.
  • Patients must also meet all criteria for PANDAS, which are:
  • prepubertal symptom onset
  • acute onset of symptoms (from no/minimal symptoms to maximum severity within 24-48 hours) and/or an episodic (relapsing-remitting) course
  • temporal association between symptomatic periods and infections with Group A Streptococcus (GAS) infection
  • presence of neurological abnormalities (e.g. handwriting deterioration, choreiform movements).
  • The onset/exacerbation of OCD symptoms must also be accompanied by at least three of the following clinical signs and symptoms, including:
  • Markedly increased level of anxiety, particularly new onset of separation anxiety
  • Emotional lability, irritability, aggressive behavior and/or personality change
  • Sudden difficulties with concentration or learning
  • +4 more criteria

You may not qualify if:

  • child who is acutely psychotic or suicidal
  • child has a serious neurological disorder or impairment (e.g. brain damage, blindness, deafness), an intellectual disability, or autism
  • history of immune modulating therapies for OCD/PANDAS symptoms
  • pre-existing liver, kidney, GI bleeding or clotting disorders (GFR \<75 mL/min/1.73m2)
  • history of ulcers in the digestive system
  • history of restricted fluid intake, as this could exacerbate side effects
  • concurrent antibiotic treatment or antibiotic treatment within one-week of baseline
  • pregnant or becomes pregnant
  • currently engaged in an intensive outpatient cognitive behavioral treatment program (more than weekly)
  • concurrent selective serotonin reuptake inhibitor (SSRI) or other psychoactive medication treatment except and unless the dose has been stable for at least 6 weeks (i.e. no recent titration, initiation, or change in dosage)
  • concurrent medications that do not meet the above criteria (e.g., other psychotropic medications or anti-inflammatory agents)
  • history of severe asthma or currently uncontrolled asthma

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Massachusetts General Hospital

Boston, Massachusetts, 02114, United States

Location

MeSH Terms

Conditions

Pediatric Autoimmune Neuropsychiatric Disorders Associated with Streptococcal infectionsAnxiety DisordersAutoimmune DiseasesObsessive-Compulsive Disorder

Interventions

Naproxen

Condition Hierarchy (Ancestors)

Mental DisordersImmune System Diseases

Intervention Hierarchy (Ancestors)

Naphthaleneacetic AcidsNaphthalenesPolycyclic Aromatic HydrocarbonsHydrocarbons, AromaticHydrocarbons, CyclicHydrocarbonsOrganic ChemicalsPolycyclic Compounds

Study Design

Study Type
interventional
Phase
phase 4
Allocation
RANDOMIZED
Masking
QUADRUPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Director, Pediatric Neuropsychiatry and Immunology Program

Study Record Dates

First Submitted

June 11, 2019

First Posted

July 11, 2019

Study Start

October 20, 2020

Primary Completion

April 30, 2025

Study Completion

April 30, 2025

Last Updated

September 25, 2025

Record last verified: 2023-03

Data Sharing

IPD Sharing
Will not share

Locations