CClinicalTrials.gg
CompletedNCT01573416Updated Oct 9, 2013

"Effectiveness of a Brief Intervention for Substances Consumption Linked to the Alcohol, Smoking and Substance Involvement Screening Test (ASSIST): A Randomized Control Trial in Chilean Primary Care."

A Phase 3 interventional study of ASSIST-linked brief intervention for hazardous and harmful substance use. and Observation in Alcohol-Related Disorders, Substance-Related Disorders and Substance Abuse, sponsored by Pontificia Universidad Catolica de Chile. Completed at 30 sites in Chile. Open to participants aged 18 Years to 50 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2013-10-09.

Sponsored by Pontificia Universidad Catolica de Chile · Phase 3, Interventional, and Prevention

Phase
Phase 3
Study type
Interventional
Enrollment
400
Allocation
Randomized
Ages
18 Years to 50 Years
Sex
All
01

Study summary

Alcohol and drugs consumption are among the highest risk factor for health in Chile and abroad. In Chile, harmful use of alcohol continues to be a major contributor to the burden of disease while lost years of healthy life are higher than many other risk factors such as hypertension, overweight and obesity, and hyperglycemia. It is important to say that the impact of alcohol consumption is greater in younger age groups where fatal injuries occur relatively early in life, as well.

In Chile, the consumption pattern in 2008 showed that 49.8 % consumed at least once in the last month for alcohol, 3.5 % for marihuana and 1.3 % for cocaine. This prevalence was even greater in young adults and adolescents and is associated with other mental health issues and poorer life quality. Those who have consumed marihuana during the last year, 25% report dependence symptoms. For cocaine derives, dependency rises up to 50% among the consumers. This data reinforce the need to design and implement strategies for reducing alcohol and drugs consumption in our population.

Also, it is well known that a high number of those who suffers from any addiction problem do not get attention in a specialized center. The are many barriers to do so, such as lack of motivation, lack of resources, social problems, access to care problems, and so on.

Chile has a shortage of preventive interventions for those at risk to develop an addiction at an early stage of substance use because front line health services (Primary health care and emergency care) and other social services (police stations, local justice courts) do not have a screening system and a model of brief intervention.

The Pontificia Universidad Catolica de Chile, through its Addiction Studies Center (CEDA UC) and its Department of Family Medicine, is working in conjunction with SENDA (Servicio Nacional para la Prevención y Rehabilitación del Consumo de Drogas y Alcohol ) to design, implement and evaluate a communal system for early detection, brief intervention and referral to treatment (SBIRT), in people older than 18 years, with substance consumption in five municipalities in the country.

The aid of this study is to demonstrate that a model of brief intervention is more effective than the approach currently used in patients with substance use at moderate risk (i.e.follow-up). It is a multicentric randomized controlled trial, single blind, with a group to receive brief intervention and a control group that is kept in control and waiting list being re-evaluated three months later.

The target population is composed by users whose ASSIST screening scores place them in the moderate risk group, for which there has not been defined a structured intervention yet by our health system. The information will be obtained from the scores obtained after the application of the ASSIST-WHO questionnaire.

02

Conditions studied

  • Alcohol-Related Disorders
  • Substance-Related Disorders
  • Substance Abuse

Keywords

  • Alcohol
  • Abuse
  • Drugs
  • Brief intervention
  • ASSIST
03

In context

Substance-Related Disorders

2,126 studies on the registry are indexed under Substance-Related Disorders; 395 are open to participants now.

This study's planned enrollment of 400 is above the median of 109 across 1,728 interventional studies indexed under Substance-Related Disorders.

Browse Substance-Related Disorders studies →

Lead sponsor

Pontificia Universidad Catolica de Chile is the lead sponsor of 215 studies on the registry; 56 are open to participants now.

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

04

Who can participate

Ages eligible
18 Years to 50 Years
Sexes eligible
All
Accepts healthy volunteers
Yes

Inclusion criteria

  • Men and women older than 18 years and 50 years
  • Achieving a moderate risk score in the ASSIST screening questionnaire.
  • Without any similar intervention in the last 3 months. (ie. AUDIT test).

Exclusion criteria

Exclusion Criteria:

  • Pregnant women.
  • Users with cognitive disabilities.
  • Users with language and communication disabilities.
05

Study design

Phase
Phase 3
Primary purpose
Prevention
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Single (Outcomes assessor)
Enrollment
400 participants (estimated)

Study arms

  • Placebo comparator
    Control group

    Other: Observation

  • Active comparator
    Intervention group

    Other: ASSIST-linked brief intervention for hazardous and harmful substance use.

Interventions

  • OtherASSIST-linked brief intervention for hazardous and harmful substance use.

    ASSIST-linked brief intervention will be applied to users achieving moderate risk scores in the ASSIST questionnaire. If after randomization are selected to enter the intervention group, they will receive a ten minute counseling carried immediately after the screening instrument. This intervention group will be re-evaluated after 3 months with the same ASSIST screening instrument.

  • OtherObservation

    Subjects who obtain a moderate risk score in the ASSIST screening questionnaire and after randomization are selected for the control group, will receive a brochure with substance-abuse information without any further conversation about the subject with the caregiver. This observation group will be re-evaluated after 3 months with the same ASSIST screening instrument.

06

What researchers measure

Primary outcomes

  1. Post-intervention ASSIST screening score.

    3 months after being recruited, users with moderate risk in the ASSIST questionnaire who received either a brief intervention or observation will be re-evaluated with the same ASSIST instrument. In both the intervened and the control group, changes in the post-intervention ASSIST score will be measured.

    Time frame: 3 months

07

Study locations

30 sites
  • CESFAM Dr. Sergio Aguilar
    Coquimbo, IV, Chile
  • CESFAM San Juan
    Coquimbo, IV, Chile
  • CESFAM Santa Cecilia
    Coquimbo, IV, Chile
  • CESFAM Tierras Blancas
    Coquimbo, IV, Chile
  • SAPU Dr. Sergio Aguilar
    Coquimbo, IV, Chile
  • SAPU Tierras Blancas
    Coquimbo, IV, Chile
  • 5ta. Comisaría Conchalí
    Conchalí, RM, Chile
  • CS Alberto Bachelet
    Conchalí, RM, Chile
  • CS José Symon Ojeda
    Conchalí, RM, Chile
  • CS Juanita Aguirre
    Conchalí, RM, Chile
  • CS Lucas Sierra
    Conchalí, RM, Chile
  • SAPU Lucas Sierra
    Conchalí, RM, Chile
  • 43va. Comisaría Peñalolén
    Peñalolén, RM, Chile
  • CESFAM Lo Hermida
    Peñalolén, RM, Chile
  • CESFAM Padre Gerardo Whelan
    Peñalolén, RM, Chile
  • CS Carol Urzúa Ibañez
    Peñalolén, RM, Chile
  • CS La Faena
    Peñalolén, RM, Chile
  • SAPU Lo Hermida
    Peñalolén, RM, Chile
  • 26va. Comisaría Pudahuel
    Pudahuel, RM, Chile
  • CESFAM Gustavo Molina
    Pudahuel, RM, Chile
  • CESFAM RAúl Silva Henríquez
    Pudahuel, RM, Chile
  • CESFAM Violeta Parra
    Pudahuel, RM, Chile
  • Consultorio Estrella
    Pudahuel, RM, Chile
  • SAPU La Estrella
    Pudahuel, RM, Chile
  • 14va. Comisaría San Bernardo
    San Bernardo, RM, Chile
  • APS Carol Urzúa
    San Bernardo, RM, Chile
  • APS Confraternidad
    San Bernardo, RM, Chile
  • APS El Manzano
    San Bernardo, RM, Chile
  • APS Raúl Cuevas
    San Bernardo, RM, Chile
  • SAPU Raúl Brañes
    San Bernardo, RM, Chile
08

References and documents

Publications

  • Humeniuk R, Ali R, Babor T, Souza-Formigoni ML, de Lacerda RB, Ling W, McRee B, Newcombe D, Pal H, Poznyak V, Simon S, Vendetti J. A randomized controlled trial of a brief intervention for illicit drugs linked to the Alcohol, Smoking and Substance Involvement Screening Test (ASSIST) in clients recruited from primary health-care settings in four countries. Addiction. 2012 May;107(5):957-66. doi: 10.1111/j.1360-0443.2011.03740.x. Epub 2012 Feb 28. PubMed 22126102 ↗
  • Beich A, Thorsen T, Rollnick S. Screening in brief intervention trials targeting excessive drinkers in general practice: systematic review and meta-analysis. BMJ. 2003 Sep 6;327(7414):536-42. doi: 10.1136/bmj.327.7414.536. PubMed 12958114 ↗
  • Ballesteros J, Duffy JC, Querejeta I, Arino J, Gonzalez-Pinto A. Efficacy of brief interventions for hazardous drinkers in primary care: systematic review and meta-analyses. Alcohol Clin Exp Res. 2004 Apr;28(4):608-18. doi: 10.1097/01.alc.0000122106.84718.67. PubMed 15100612 ↗
  • Hungerford DW, Pollock DA, Todd KH. Acceptability of emergency department-based screening and brief intervention for alcohol problems. Acad Emerg Med. 2000 Dec;7(12):1383-92. doi: 10.1111/j.1553-2712.2000.tb00496.x. PubMed 11099429 ↗
  • Anderson PA, Grey SF, Nichols C, Parran TV Jr, Graham AV. Is screening and brief advice for problem drinkers by clergy feasible? A survey of clergy. J Drug Educ. 2004;34(1):33-40. doi: 10.2190/3QH2-VLWN-ELWM-KC67. PubMed 15468746 ↗
  • Babor TF, McRee BG, Kassebaum PA, Grimaldi PL, Ahmed K, Bray J. Screening, Brief Intervention, and Referral to Treatment (SBIRT): toward a public health approach to the management of substance abuse. Subst Abus. 2007;28(3):7-30. doi: 10.1300/J465v28n03_03. PubMed 18077300 ↗
  • Gentilello LM, Rivara FP, Donovan DM, Jurkovich GJ, Daranciang E, Dunn CW, Villaveces A, Copass M, Ries RR. Alcohol interventions in a trauma center as a means of reducing the risk of injury recurrence. Ann Surg. 1999 Oct;230(4):473-80; discussion 480-3. doi: 10.1097/00000658-199910000-00003. PubMed 10522717 ↗
  • Babor TF, Kadden RM. Screening and interventions for alcohol and drug problems in medical settings: what works? J Trauma. 2005 Sep;59(3 Suppl):S80-7; discussion S94-100. doi: 10.1097/01.ta.0000174664.88603.21. PubMed 16355071 ↗
  • WHO ASSIST Working Group. The Alcohol, Smoking and Substance Involvement Screening Test (ASSIST): development, reliability and feasibility. Addiction. 2002 Sep;97(9):1183-94. doi: 10.1046/j.1360-0443.2002.00185.x. PubMed 12199834 ↗
  • Whitlock EP, Polen MR, Green CA, Orleans T, Klein J; U.S. Preventive Services Task Force. Behavioral counseling interventions in primary care to reduce risky/harmful alcohol use by adults: a summary of the evidence for the U.S. Preventive Services Task Force. Ann Intern Med. 2004 Apr 6;140(7):557-68. doi: 10.7326/0003-4819-140-7-200404060-00017. PubMed 15068985 ↗
  • Hawks D. Broadening the base of treatment for alcohol problems: a report which deserves to be debated. The limits of treatment and importance of prevention. Br J Addict. 1991 Jul;86(7):848-9. doi: 10.1111/j.1360-0443.1991.tb01836.x. No abstract available. PubMed 1912733 ↗
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Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Oct 9, 2013, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT01573416
Lead sponsor
Pontificia Universidad Catolica de Chile
Collaborators
Servicio Nacional para la Prevención y Rehabilitación del Consumo de Drogas y Alcohol (SENDA)
Responsible party
Fernando Poblete Arrué (Profesor Asistente Adjunto, Pontificia Universidad Catolica de Chile) — Principal investigator
First posted
Apr 9, 2012
Start date
Dec 2011
Primary completion
Apr 2013
Completion
Apr 2013
Last update
Oct 9, 2013

Study contacts

Fernando Poblete, MD, MPH
study director · Pontificia Universidad Catolica de Chile

Oversight

Data monitoring committee
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Apr 2012. You cannot join it, but the record below documents what was studied.

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