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Does omega-3 supplementation reduce aggressive behaviour in adult male prisoners?

Does Omega-3 Supplementation Attenuate Aggressive Behaviour in Adult Male Prisoners: A multi-centre randomised controlled trial of a Broadly Disseminable Strategy

Status
Terminated
Phases
Phase 3
Study type
Interventional
Source
ANZCTR
Registry ID
ACTRN12618001665224
Enrollment
314
Registered
2018-10-10
Start date
2019-04-16
Completion date
2021-06-18
Last updated
2022-08-09

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

Conditions

None listed

Brief summary

The purpose of this study is to determine whether omega-3 supplementation attenuates aggressive behaviours in adult male prisoners who have previously demonstrated aggression within the prison. Prisoners will be randomly assigned to an active or placebo supplementation condition. Measures of institutional aggression and hypothesised associated mental health condition (ADHD) will be collected to assess the impact of omega-3 supplementation. It is hypothesised that prisoners receiving the active (omega-3) supplements will demonstrate reduced aggressive behaviour and reduced ADHD symptoms, compared to prisoners receiving a placebo supplement.

Interventions

Inmates will receive 5 capsules (omega-3 or placebo) on Mondays, Wednesdays and Fridays totalling 15 capsules per week. The active and placebo will be randomly assigned to Treatment A and Treatment B. The algal DHA-O capsules are ~1 g with 509.2 mg/capsule DHA/EPA (i.e., DHA 324 mg/ capsule and EPA 185.3 mg/capsule), hence providing a daily dose of 1,091mg omega-3 (694mg DHA and 397mg EPA). The placebo capsules are a corn/soy oil blend which are identical in size and colour. Duration of the inte

Inmates will receive 5 capsules (omega-3 or placebo) on Mondays, Wednesdays and Fridays totalling 15 capsules per week. The active and placebo will be randomly assigned to Treatment A and Treatment B. The algal DHA-O capsules are ~1 g with 509.2 mg/capsule DHA/EPA (i.e., DHA 324 mg/ capsule and EPA 185.3 mg/capsule), hence providing a daily dose of 1,091mg omega-3 (694mg DHA and 397mg EPA). The placebo capsules are a corn/soy oil blend which are identical in size and colour. Duration of the intervention is 16 weeks. Monitoring of adherence to the intervention will be by direct observation by the study personnel (the project officer) and for the active group, the change in the level of omega-3 levels in the blood will also be a measure of compliance

Sponsors

University of Wollongong
Lead SponsorUniversity

Study design

Allocation
Randomised controlled trial
Intervention model
Parallel
Primary purpose
Treatment
Masking
Blinded (masking used) (Subject, Caregiver, Investigator, Outcomes Assessor)

Eligibility

Sex/Gender
Male
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

Inmate Behavioural Observation Scale (IBOS) of 1 or greater. Blood omega-3 level of 6% or lower.

Exclusion criteria

Inmate Behavioural Observation Scale (IBOS) of less than 1. Inmates on any blood thinning medication. Blood omega-3 level higher than 6%.

Outcome results

None listed

Source: ANZCTR · Data processed: Feb 23, 2026