ClinicalTrials.gg
CompletedNCT01396486Updated Aug 13, 2020Results posted

Inositol and Omega-3 Fatty Acids in Pediatric Mania

A Phase 4 interventional study of Omega-3 and Inositol in Pediatric Bipolar Spectrum Disorders, sponsored by Massachusetts General Hospital. Completed at 1 site in United States. Open to participants aged 5 Years to 12 Years. Per ClinicalTrials.gov, last updated 2020-08-13.

Sponsored by Massachusetts General Hospital · Phase 4, Interventional, and Treatment

Phase
Phase 4
Study type
Interventional
Enrollment
69
Allocation
Randomized
Ages
5 Years to 12 Years
Sex
All
01

Study summary

The purpose of this study is to a) evaluate the efficacy of omega-3 fatty acids versus inositol in the treatment of pediatric bipolar disorder, b) evaluate the efficacy of omega-3 fatty acid plus inositol in the treatment of pediatric bipolar disorder, and c) assess the side effect profile of omega-3 fatty acids plus inositol. This study will be a 12-week trial with children ages 5-12 years old with bipolar spectrum disorders.

Read the detailed description

The investigators propose to conduct a randomized, double blind, controlled trial that will evaluate effectiveness and tolerability of omega-3 fatty acids and inositol used alone and in combination. The investigators plan to decrease the variability in the population under study by limiting the age range to 5-12 years and excluding cases with significant, untreated, comorbidity. The cognitive effects/side effects with a neuropsychological battery pre and post treatment will be measured. Subjects with a history of failing treatment with two or more conventional treatments will be excluded.

This will be a 12-week, double-blind, randomized clinical trial study to compare efficacy and tolerability of the natural treatments omega-3 fatty acids and inositol used in combination in the treatment of bipolar spectrum disorders in children and adolescents (ages 5-12). Subjects will be randomized in double blind fashion to one of three arms: omega-3 fatty acids, inositol or the combined treatment. Further, the proposed study will include measures of cognition prior to starting study medication and at endpoint. The investigators will minimize the variability of the population under study by limiting the age range to 5-12 years, minimizing untreated or clinically significant comorbidity and excluding subjects who have already failed treatment with 2 or more anti-manic agents. Subjects will include youth ages 5-12 years with a bipolar spectrum disorder (type I, II, or NOS), mixed, manic, or hypomanic state, according to the Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition (American Psychiatric Association, 2000) (DSM-IV), randomized to 3 treatment arms: 1) treatment with omega-3 fatty acids (N=20); 2) treatment with inositol (N=20); 3) treatment with the combination of inositol and omega-3 fatty acids (N=20).

02

Conditions studied

  • Pediatric Bipolar Spectrum Disorders

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Keywords

  • Omega-3 Fatty Acids
  • Fish Oil
  • Inositol
  • Natural supplements
  • Bipolar Spectrum Disorders
  • Mania
  • Depression
  • Children
03

In context

Mania

166 studies on the registry are indexed under Mania; 13 are open to participants now.

This study's enrollment of 69 is below the median of 89 across 138 interventional studies indexed under Mania.

Browse Mania studies →

Lead sponsor

Massachusetts General Hospital is the lead sponsor of 2,586 studies on the registry; 447 are open to participants now.

Of its 222 completed or terminated interventional studies of FDA-regulated products, 168 (76%) have results posted.

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

04

Who can participate

Ages eligible
5 Years to 12 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

  1. Male or female subjects, 5-12 years of age.
  2. Subjects must have a diagnosis of a bipolar spectrum disorder (type I, II, or Not Otherwise Specified (NOS)), and currently displaying mixed, manic, or hypomanic symptoms (without psychotic features) according to the DSM-IV based on clinical assessment and confirmed with structured diagnostic interview (Schedule of Affective Disorders and Schizophrenia for School-Age Children - Epidemiological Version (K-SADS-E)) (Orvaschel, 1994).
  3. Subjects and their legal representative must have a level of understanding sufficient to communicate intelligently with the investigator and study coordinator, and to cooperate with all tests and examinations required by the protocol.
  4. Subjects and their legal representative must be considered reliable.
  5. Each subject and his/her authorized legal representative must understand the nature of the study. The subject's authorized legal representative must sign an document and the subject must sign an informed assent document.
  6. Subjects must have an initial score on the YMRS total score of at least 20.
  7. Subject must be able to swallow pills.
  8. Subjects with ADHD and ODD will be allowed to participate in the study provided that the impairment associated with these disorders is of mild or moderate severity (not severe) and milder in severity relative to the impairment of the bipolar disorder, according to clinician evaluation. Subjects with comorbid anxiety disorders will be allowed to participate provided that the impairment associated with the anxiety is of minimal severity, according to clinician evaluation. Subjects with comorbid CD will be excluded.

Exclusion criteria

Exclusion Criteria:

  1. Investigator and his/her immediate family; defined as the investigator's spouse, parent, child, grandparent, or grandchild.
  2. Serious or unstable illness including hepatic, renal, gastroenterological, respiratory, cardiovascular (including ischemic heart disease), endocrinologic, neurologic, immunologic, or hematologic disease.
  3. History of bleeding diathesis, including those with von Willebrand disease.
  4. Uncorrected hypothyroidism or hyperthyroidism.
  5. History of sensitivity to omega-3 fatty acids or inositol. A non-responder or history of intolerance to omega-3 fatty acid or inositol, after 2 months of treatment at adequate doses as determined by the clinician.
  6. Severe allergies or multiple adverse drug reactions.
  7. Failed 2 or more previous trials with anti-manic treatments including lithium, anticonvulsants and atypical antipsychotic medication.
  8. Current or past history of seizures.
  9. substance use, abuse or dependence (unlikely in ages 5-12).
  10. Judged clinically to be at serious suicidal risk.
  11. Current diagnosis of schizophrenia.
  12. Current diagnosis of conduct disorder
  13. Pregnancy (unlikely in ages 5-12).
  14. YMRS Item #8 (Content) score of 8 ("delusions; hallucinations").
  15. YMRS total score above 40.
  16. Girls who have begun menstruating.
  17. C-SSRS score ≥ 4.
  18. IQ \< 70.
Terms in these criteria, in plain language(2)

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.

DSM diagnostic criteria

The American Psychiatric Association’s manual of mental health diagnoses. DSM-5 (2013, revised as DSM-5-TR in 2022) replaced DSM-IV, and some studies still name the older edition. “Meets DSM criteria for …” means diagnosed by that edition’s diagnostic criteria, usually by a clinician in an interview.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

05

Study design

Phase
Phase 4
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Single group
Masking
Quadruple (Participant, Care provider, Investigator, Outcomes assessor)
Enrollment
69 participants (actual)

Study arms

  • Active comparator
    Omega-3/Placebo

    Combination Omega-3 and Placebo treatment.

    Drug: Omega-3

  • Active comparator
    Placebo/Inositol

    Combination Placebo and Inositol treatment.

    Drug: Inositol

  • Active comparator
    Omega-3/Inositol

    Combination Omega-3 and Inositol treatment.

    Drug: Omega-3 · Drug: Inositol

Interventions

  • Children with bipolar spectrum disorders ages 6-12 will receive treatment with omega-3 fatty acids. Study subjects may be randomized to receive 3000mg (6 500mg capsules) of omega-3 fatty acids for the duration of the study. Omega-3 fatty acid capsules are in the form of Nordic Naturals brand, ProOmega Junior, which contains 325mg EPA and 225mg DHA per two capsules.

    Also known as: ProOmega Junior

  • Children with bipolar spectrum disorders ages 6-12 will receive treatment with inositol, omega-3 fatty acids, or both weekly for 12 weeks. Subjects weighing 25kg or more may be randomized to receive 2000mg (4 500mg capsules) of inositol (80mg/kg for a 25kg child). Children weighing less than 25kg will be dosed at 80mg/kg rounded down to the nearest thousand mg dose. Dosage will remain constant throughout the study.

06

What researchers measure

Primary outcomes

  1. Improvement in Mania Symptoms by Change in Young Mania Rating Scale (YMRS)

    The Young Mania Rating Scale (YMRS) consists of 7 items rated on a scale from 0 (symptoms not present) to 4 (symptoms extremely severe) and 4 items rated on a scale from 0 (symptom not present) to 8 (symptom extremely severe).The YMRS score ranges from 0-60. Questions are asked about the last week. A higher score signifies more severe manic symptoms.

    Time frame: Baseline to endpoint (12 weeks or last observation carried forward if dropped prior to week 12)

  2. Improvement in Depression Symptoms by Children's Depression Rating Scale (CDRS)

    The Children's Depression Rating Scale (CDRS) is a clinician-rated instrument with 17 items scored on a 1 to 5 or 1 to 7 scale. A rating of 1 indicates normal, thus the minimum score is 17. The maximum score is 113. Scores of 20-30 suggest borderline depression. Scores of 40-60 indicate moderate depression.

    Time frame: Baseline to endpoint (12 weeks or last observation carried forward if dropped prior to week 12)

07

Results

Posted Apr 21, 2020

Participant flow

Participant flow — Overall Study
MilestoneOmega-3/PlaceboPlacebo/InositolOmega-3/Inositol
Started201922
Exposed191617
Completed10710
Not completed101212

Outcome measures

PrimaryImprovement in Mania Symptoms by Change in Young Mania Rating Scale (YMRS)

The Young Mania Rating Scale (YMRS) consists of 7 items rated on a scale from 0 (symptoms not present) to 4 (symptoms extremely severe) and 4 items rated on a scale from 0 (symptom not present) to 8 (symptom extremely severe).The YMRS score ranges from 0-60. Questions are asked about the last week. A higher score signifies more severe manic symptoms.

Time frame:
Baseline to endpoint (12 weeks or last observation carried forward if dropped prior to week 12)
Reported as:
Mean · units on a scale
Improvement in Mania Symptoms by Change in Young Mania Rating Scale (YMRS)
units on a scaleOmega-3/PlaceboPlacebo/InositolOmega-3/Inositol
Improvement in Mania Symptoms by Change in Young Mania Rating Scale (YMRS)-4.8 ± 7.9-6.4 ± 6.4-10.2 ± 9.0
PrimaryImprovement in Depression Symptoms by Children's Depression Rating Scale (CDRS)

The Children's Depression Rating Scale (CDRS) is a clinician-rated instrument with 17 items scored on a 1 to 5 or 1 to 7 scale. A rating of 1 indicates normal, thus the minimum score is 17. The maximum score is 113. Scores of 20-30 suggest borderline depression. Scores of 40-60 indicate moderate depression.

Time frame:
Baseline to endpoint (12 weeks or last observation carried forward if dropped prior to week 12)
Reported as:
Mean · units on a scale
Improvement in Depression Symptoms by Children's Depression Rating Scale (CDRS)
units on a scaleOmega-3/PlaceboPlacebo/InositolOmega-3/Inositol
Improvement in Depression Symptoms by Children's Depression Rating Scale (CDRS)-4.9 ± 10.6-5.6 ± 10.1-10.8 ± 7.4

Adverse events

Collected over 12 weeks. Non-serious events are listed at a 0% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
Omega-3/Placebo0/20 (0%)1/20 (5%)13/20 (65%)
Placebo/Inositol0/19 (0%)1/19 (5.3%)12/19 (63.2%)
Omega-3/Inositol0/22 (0%)0/22 (0%)10/22 (45.5%)
Most frequent serious events
Most frequent serious events
EventOmega-3/PlaceboPlacebo/InositolOmega-3/Inositol
Agitated/IrritablePsychiatric disorders1/201/190/22
Most frequent other events
Showing 10 of 25
Most frequent other events
EventOmega-3/PlaceboPlacebo/InositolOmega-3/Inositol
Nausea/Vomit/DiarrheaGastrointestinal disorders4/201/193/22
Cold/Infection/AllergyInfections and infestations3/201/191/22
Agitated/IrritablePsychiatric disorders1/202/190/22
Increased AppetiteGeneral disorders0/202/191/22
HeadacheGeneral disorders0/201/191/22
InsomniaNervous system disorders0/201/191/22
SedationNervous system disorders0/201/190/22
Weight GainGeneral disorders0/201/190/22
Psychotic EpisodePsychiatric disorders0/201/190/22
Sleep WalkingNervous system disorders0/201/190/22

Baseline characteristics

Age, Continuous
Age, Continuous(years)Omega-3/PlaceboPlacebo/InositolOmega-3/InositolTotal
Mean7.8 ± 1.68.8 ± 2.38.4 ± 2.58.3 ± 2.2
Sex: Female, Male
Sex: Female, Male(Participants)Omega-3/PlaceboPlacebo/InositolOmega-3/InositolTotal
Female84820
Male1112932
Ethnicity (NIH/OMB)
Ethnicity (NIH/OMB)(Participants)Omega-3/PlaceboPlacebo/InositolOmega-3/InositolTotal
Hispanic or Latino4206
Not Hispanic or Latino14141745
Unknown or Not Reported1001
Race (NIH/OMB)
Race (NIH/OMB)(Participants)Omega-3/PlaceboPlacebo/InositolOmega-3/InositolTotal
American Indian or Alaska Native0000
Asian0000
Native Hawaiian or Other Pacific Islander0000
Black or African American0112
White16141646
More than one race1102
Unknown or Not Reported2002
Region of Enrollment
Region of Enrollment(participants)Omega-3/PlaceboPlacebo/InositolOmega-3/InositolTotal
United States19161752
YMRS
YMRS(units on a scale)Omega-3/PlaceboPlacebo/InositolOmega-3/InositolTotal
Mean26.1 ± 7.225.8 ± 6.524.2 ± 5.825.4 ± 6.5
08

Study locations

1 site
  • Massachusetts General Hospital
    Boston, Massachusetts 02114, United States
09

References and documents

Publications

  • Wozniak J, Faraone SV, Chan J, Tarko L, Hernandez M, Davis J, Woodworth KY, Biederman J. A randomized clinical trial of high eicosapentaenoic acid omega-3 fatty acids and inositol as monotherapy and in combination in the treatment of pediatric bipolar spectrum disorders: a pilot study. J Clin Psychiatry. 2015 Nov;76(11):1548-55. doi: 10.4088/JCP.14m09267. Erratum In: J Clin Psychiatry. 2016 Sep;77(9):e1153. doi: 10.4088/JCP.16lcx11151. PubMed 26646031 ↗

Study documents

PDFs hosted by the registry, ClinicalTrials.gov.

Individual participant data

Plan to share: No

10

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Aug 13, 2020, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
11

Registry details

Key details

Study ID
NCT01396486
Responsible party
Janet Wozniak, MD (Assistant Professor of Psychiatry at Harvard Medical School and at Massachusetts General Hospital, Massachusetts General Hospital) — Principal investigator
First posted
Jul 18, 2011
Start date
Feb 3, 2012
Primary completion
Apr 11, 2019
Completion
Apr 11, 2019
Results posted
Apr 21, 2020
Last update
Aug 13, 2020

Study contacts

Janet Wozniak, MD
principal investigator · Massachusetts General Hospital

Oversight

Data monitoring committee
Yes
View the source record on ClinicalTrials.gov ↗

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Studies of the drugs tested here: Omega-3 fatty acid · Inositol

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