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ADHDPhase 3NCT01777048

Omega-3 Fatty Acids Supplementation in ADHD

A Phase 3 study testing Omega-3 Fatty Acids Supplementation in people with ADHD, run by University Hospital, Basel, Switzerland at 1 site in Switzerland.

Terminated

Stopped early. The study ended before it was planned to and will not resume.

Official record
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Trial summary

The overarching aim of the proposed study is to assess whether omega-3 fatty acids supplementation can augment the effects of methylphenidate in children with ADHD. The investigators hypothesized that omega-3 fatty acids supplementation will be associated with improved ADHD symptoms. Read more about this study

Who is it for?
Ages 6 to 12 years
Conditions the study is for
ADHD
What is being tested?
Omega-3 Fatty Acids Supplementation
Type of treatment
Pill or oral medicine
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
8 participants
Where
1 siteSwitzerland
Study dates
Apr 2013to May 2015
Phase
Phase 3
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 6 to 12 years
  • All sexes
  • No healthy volunteers
  • Child

Who may be able to join

  • Participants between ages 6 and 12 years who:
  • have been clinically diagnosed with ADHD by a physician
  • meet the criteria of ADHD-Inattention, ADHD-Hyperactivity-Impulsivity, or ADHD-Combined type as determined by the SNAP-IV (Swanson, 1992)
  • are willing to participate in a randomized, double-blind, placebo-controlled trial, complete with written, informed parental consent,
  • are on stable dosage of methylphenidate treatment before the start of the study
  • are able to speak English or German

Who cannot join

  • Participants who are younger than 6 years old or older than 12 years old
  • Those who have not been clinically diagnosed with ADHD by a physician
  • Those who did not meet the criteria of ADHD-Inattention, ADHD-Hyperactivity-Impulsivity, or ADHD-Combined type as determined by the SNAP-IV (Swanson, 1992)
  • Those without written parental consent
  • Those with brain pathology such as serious head injury, epilepsy, and intellectual disability (IQ < 70)
  • Those with titrated dosage of methylphenidate before the start of the study
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  • Those on neurofeedback training, and/or psychosocial intervention addressing attention problems
  • Those with known hypersensitivity to the IMP under investigation
  • Those who are unable to read and understand the parent/participant information
  • Those receiving medications other than methylphenidate

Trial locations and contacts

1 site in 1 country.

Switzerland1 site
  • Universitäre Psychiatrische Kliniken (UPK) Basel

    Basel, 4058

Other trials in Switzerland

About this study

Official title: Augmenting the Effects of Methylphenidate: A Randomized, Placebo-Controlled Trial of Omega-3 Fatty Acids Supplementation in Children With Attention Deficit Hyperactivity Disorder

The overarching aim of the proposed study is to assess whether omega-3 fatty acids supplementation can augment the effects of methylphenidate in children with ADHD. The investigators hypothesized that omega-3 fatty acids supplementation will be associated with improved ADHD symptoms.

Conditions
ADHD
Being tested
Omega-3 Fatty Acids Supplementation, Omega-3 Placebo
Medical subject headings
Attention Deficit Disorder with Hyperactivity

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Omega-3 Fatty Acids SupplementationDietary supplement

  • Omega-3 PlaceboDietary supplement

    Placebo capsules manufactured to mimic Omega-3 capsules

Study groups in NCT01777048
Study groupRoleWhat they receive
Omega-3 Fatty AcidsExperimental1g of Omega-3 per day [400mg DHA \& 600mg EPA] for 12 weeks: 2 capsules after breakfast and 2 capsules after dinner
Receives: Dietary Supplement: Omega-3 Fatty Acids Supplementation
Omega-3 PlaceboPlacebo comparator1g of Omega-3 Placebo per day for 12 weeks: 2 capsules after breakfast and 2 capsules after dinner
Receives: Dietary Supplement: Omega-3 Placebo

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Change in ADHD Rating Scale-IV total score

    Measured: Baseline, Week 6, and Week 12

Secondary outcomes (1)
  1. Change in Child Behaviour Checklist total score

    Measured: Baseline and Week 12

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted28 Jan 2013 (estimated)
  2. Study startApr 2013
  3. Primary completionMay 2015
  4. Study completionMay 2015

Why it stopped: Low recruitment numbers

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 3
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Quadruple blind
Who is masked
Participant, Care provider, Investigator, Outcomes assessor
Enrolment
8 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01777048
Sponsor's protocol ID
203/12
Status last verified
Jun 2015
First submitted
16 Jan 2013
Last updated
24 Jun 2015
Results posted
No
Data monitoring committee
Yes

Publications

  • Gillies D, Leach MJ, Perez Algorta G. Polyunsaturated fatty acids (PUFA) for attention deficit hyperactivity disorder (ADHD) in children and adolescents. Cochrane Database Syst Rev. 2023 Apr 14;4(4):CD007986. doi: 10.1002/14651858.CD007986.pub3.

    PubMed 37058600

Questions about this trial

What is this clinical trial studying?

A Phase 3 study testing Omega-3 Fatty Acids Supplementation in people with ADHD, run by University Hospital, Basel, Switzerland at 1 site in Switzerland.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 6 inclusion and 10 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: stopped early, as of the sponsor's last update on 24 Jun 2015. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Switzerland. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study was stopped early (reason given: Low recruitment numbers). Results are not available in the source record.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Change in ADHD Rating Scale-IV total score (time frame: Baseline, Week 6, and Week 12). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT01777048, which also lists 1 linked publication.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 24 Jun 2015.

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