NCT01735279

Brief Summary

Nicotine dependence may prolong the exposure to toxic substances that cause various diseases. The Central Nervous System (CNS) is consisted by a large amount of Polyunsaturated Fatty Acids (PUFAS) from omega-3 serie. Omega-3 takes part in several actions, including the modulation of dopaminergic neurotransmission. In its deficiency is detected a hypofunctioning of the mesolimbic and mesocortical pathway, related to the reward system, involved on the context of nicotine dependence. Treatment using dietary supplementation with omega-3 shows improvements in several diseases, including mood disorders such as anxiety and depression. The investigators hypothesis is that supplementation with these fatty acids can restore the levels of omega-3 and could decrease nicotine dependence. The investigators objective is to investigate a possible association between increased serum levels of omega-3 and the reduction in nicotine dependence.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
58

participants targeted

Target at below P25 for phase_3

Timeline
Completed

Started Jan 2013

Shorter than P25 for phase_3

Geographic Reach
1 country

1 active site

Status
completed

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

November 23, 2012

Completed
5 days until next milestone

First Posted

Study publicly available on registry

November 28, 2012

Completed
1 month until next milestone

Study Start

First participant enrolled

January 1, 2013

Completed
11 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 1, 2013

Completed
3 months until next milestone

Study Completion

Last participant's last visit for all outcomes

March 1, 2014

Completed
6.6 years until next milestone

Results Posted

Study results publicly available

October 14, 2020

Completed
Last Updated

October 14, 2020

Status Verified

September 1, 2020

Enrollment Period

11 months

First QC Date

November 23, 2012

Results QC Date

January 6, 2016

Last Update Submit

September 18, 2020

Conditions

Keywords

tobacco dependencetobacco treatmentomega 3 seriespolyunsaturated fatty acids

Outcome Measures

Primary Outcomes (1)

  • Fageström Test for Nicotine Dependence Score at Baseline and After 90 Days of the Treatment

    The Fageström Test for Nicotine Dependence is a widely used test to measure the nicotine dependence. This test was chosen to evaluate the possible changes on the nicotine dependence during the clinical trial. The range for the scale is: very low (dependence) 0-2 low (dependence) 3-4 moderate (dependence) 5 high (dependence) 6-7 very high (dependence) 8-10 So, lower levels (low scores on the scale) of the FTND measure indicates lower nicotine dependence, and higher levels (high scores on the scales) of the FTND measure indicates higher nicotine dependence.

    Baseline (prior to the beginning) and after 90 days of the treatment

Secondary Outcomes (2)

  • Concentration of Docosahexaenoic Acid (DHA) at Baseline and After 90 Days of Treatment

    At baseline (prior to the beginning of the treatment) and after 90 days of treatment

  • Concentration of Eicosapentaenoic Acid (EPA)

    At baseline (prior to the beginning of the treatment) and after 90 days of treatment

Study Arms (2)

Placebo

PLACEBO COMPARATOR

The placebo group will receive 3g per day of mineral oil during 90 days treatment

Drug: Placebo

Omega3

EXPERIMENTAL

The omega 3 group will receive 3g per day of fish oil during 90 days treatment

Drug: Omega 3

Interventions

Each fish oil capsule contained 210.99 mg of EPA and 129.84 mg of DHA.

Also known as: fish oil, omega 3 fatty acid
Omega3

mineral oil + food dye #2 (simulating the colour of essential fatty acids); 1000 mg of mineral oil per capsule

Also known as: mineral oil
Placebo

Eligibility Criteria

Age20 Years - 60 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64)

You may qualify if:

  • healthy smokers; age between 20 and 60 years; score in Fagerström Test for Nicotine Dependence (FTND) up to 5 points (FTND \> 5); high motivation to stop smoking (accessed by Richmond Test)

You may not qualify if:

  • psychiatric disorders; taking psychoactive medications; history of alcohol and/or other drugs abuse or dependence;

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Unidade de Dependência de Drogas (UDED)

São Paulo, 55, Brazil

Location

MeSH Terms

Conditions

Tobacco Use Disorder

Interventions

Docosahexaenoic AcidsFish OilsFatty Acids, Omega-3Mineral Oil

Condition Hierarchy (Ancestors)

Substance-Related DisordersChemically-Induced DisordersMental Disorders

Intervention Hierarchy (Ancestors)

Dietary Fats, UnsaturatedDietary FatsFatsLipidsFatty Acids, UnsaturatedFatty AcidsOilsPetrolatumHydrocarbonsOrganic Chemicals

Results Point of Contact

Title
Md PhD José Carlos F. Galduróz
Organization
Department of Psychobiology, Universidade Federal de São Paulo (UNIFESP), Rua Napoleão de Barros, São Paulo , Brazil

Study Officials

  • José Carlos F. Galduróz, Md PhD

    Universidade Federal de São Paulo (UNIFESP)

    PRINCIPAL INVESTIGATOR

Publication Agreements

PI is Sponsor Employee
No
Restrictive Agreement
No

Study Design

Study Type
interventional
Phase
phase 3
Allocation
RANDOMIZED
Masking
TRIPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Md PhD

Study Record Dates

First Submitted

November 23, 2012

First Posted

November 28, 2012

Study Start

January 1, 2013

Primary Completion

December 1, 2013

Study Completion

March 1, 2014

Last Updated

October 14, 2020

Results First Posted

October 14, 2020

Record last verified: 2020-09

Data Sharing

IPD Sharing
Will not share

We do not plan to make individual participant data available. The data obtained was analysed and published

Locations