Chronic DiseaseNCT02926001
Evaluation of the Impact of a Sugar-Sweetened Beverage Tax in Chile
An observational study of Chronic Disease and Obesity, run by Marc Suhrcke.
Trial summary
The purpose of this study is to evaluate formally the short term impacts of the tax policy applied to Sugar-Sweetened Beverages (SSBs) in Chile. The Impuesto Adicional a las Bebidas Analcohólicas (IABA, or "additional tax on soft drinks") in Chile was enacted in October 2014, affecting any non-alcoholic beverages to… Read more about this study
- Who is it for?
- Any ageHealthy volunteers can take part
- Conditions the study is for
- Chronic Disease, Obesity
- How many people
- 2,836 participants
- Where
- No sites listed yet
- Study dates
- Oct 2011to Sep 2015
- Phase
- Observational
- 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 Any age
- All sexes
- Healthy volunteers accepted
- Child, Adult, Older adult
Study population: The study population is 2,836 households that arenationally representative of urban areas in Chile.
Who may be able to join
- Household in Chile that agreed to participate in the purchasing survey and provided data to a satisfactory degree for the first 2 months.
Who cannot join
- Households that are unwilling to participate in the survey. Households that change physical address. Households with poor compliance to the survey.
About this study
Official title: Empirical Evaluation of the Short Term Impact of a Sugar-Sweetened Beverage Tax in Chile
The purpose of this study is to evaluate formally the short term impacts of the tax policy applied to Sugar-Sweetened Beverages (SSBs) in Chile. The Impuesto Adicional a las Bebidas Analcohólicas (IABA, or "additional tax on soft drinks") in Chile was enacted in October 2014, affecting any non-alcoholic beverages to which colorants, flavourings or sweeteners have been added. For beverages above an added sugar concentration of at least 6.25 grams per 100ml (or equivalent proportion), the tax was increased from 13% to 18%, while for those below this threshold the tax was decreased to 10%, producing an 8% tax difference between these beverage groups. This impact evaluation analysis of the Chilean sugar-sweetened beverage (SSB) tax will estimate the impact of increasing the tax as well as decreasing the tax on soft drinks. The study will use household level grocery purchasing data for Chile. The purchasing records are available from October 2011 to September 2015 (three years before; and one year after the implementation of the tax in October 2014). The investigators will use a series of quasi-experimental approaches to evaluate the causal impact of the SSB tax policy on consumers' behaviour as well as on industry responses in the form of pricing and price promotion decisions.
- Conditions
- Chronic Disease, Obesity
- Keywords
- Taxes, Beverages/economics, Carbonated Beverages/economics, Diet, Food and Nutrition/economics, Economics, Energy Intake, Risk Factors
- Medical subject headings
- Chronic Disease, Obesity
What is being measured
The primary outcome is the main question the study is designed to answer.
Volume of sugar-sweetened beverage purchased
Measured: October 2011 - September 2015
Secondary outcomes (4)
Consumer shopping patterns - Frequency
Frequency of Purchasing
Measured: October 2011 - September 2015
Consumer shopping patterns - Volume
Volume of Purchases
Measured: October 2011 - September 2015
Market price of sugar-sweetened beverages
Measured: October 2011 - September 2015
Body mass index of household members
Measured: October 2011 - September 2015
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted6 Oct 2016 (estimated)
- Study startOct 2011
- Primary completionSep 2015
- Study completionSep 2015
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (1)Papers the sponsor has linked to this study.
- Other trials for Chronic DiseaseStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Observational
- Time perspective
- Retrospective
- Enrolment
- 2,836 participants (actual)
Sponsor and investigators
- Lead sponsor
- Marc Suhrcke
- Sponsor type
- University, hospital or other
- Collaborators
- University of Chile
- Responsible party
- Sponsor-investigator, Marc Suhrcke, University of York
- Investigators
- Marc Suhrcke, PhD, Principal investigator, Centre for Health Economics, University of YorkRyota Nakamura, PhD, Principal investigator, Centre for Health Economics, University of YorkAndrew J Mirelman, PhD, Principal investigator, Centre for Health Economics, University of YorkCristobal Cuadrado, MD, PhD, Principal investigator, University of ChileNicolas Silva, MD, Principal investigator, University of Chile
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT02926001
- Sponsor's protocol ID
- MR/N026640/1
- Status last verified
- Oct 2016
- First submitted
- 4 Oct 2016
- Last updated
- 6 Oct 2016
- Results posted
- No
- Data monitoring committee
- No
- Individual data sharing
- Undecided
Publications
Nakamura R, Mirelman AJ, Cuadrado C, Silva-Illanes N, Dunstan J, Suhrcke M. Evaluating the 2014 sugar-sweetened beverage tax in Chile: An observational study in urban areas. PLoS Med. 2018 Jul 3;15(7):e1002596. doi: 10.1371/journal.pmed.1002596. eCollection 2018 Jul.
PubMed 29969456
Study at a glance
From the registry record, last updated by the sponsor on 6 Oct 2016. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Empirical Evaluation of the Short Term Impact of a Sugar-Sweetened Beverage Tax in Chile
- ClinicalTrials.gov ID
- NCT02926001
- Acronym / sponsor ID
- MR/N026640/1
- Conditions
- Chronic Disease, Obesity
- Keywords
- Taxes, Beverages/economics, Carbonated Beverages/economics, Diet, Food and Nutrition/economics, Economics, Energy Intake, Risk Factors
- Study type
- Observational
- Recruitment status
- Completed
- Enrolment
- 2,836 participants (actual)
- Lead sponsor
- Marc SuhrckeUniversity, hospital or other
- Collaborators
- University of Chile
- Study start
- Oct 2011
- Primary completion
- Sep 2015 (actual)
- Study completion
- Sep 2015 (actual)
- First posted
- 6 Oct 2016 (estimated)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
The purpose of this study is to evaluate formally the short term impacts of the tax policy applied to Sugar-Sweetened Beverages (SSBs) in Chile. The Impuesto Adicional a las Bebidas Analcohólicas (IABA, or "additional tax on soft drinks") in Chile was enacted in October 2014, affecting any non-alcoholic beverages to which colorants, flavourings or sweeteners have been added. For beverages above an added sugar concentration of at least 6.25 grams per 100ml (or equivalent proportion), the tax was increased from 13% to 18%, while for those below this threshold the tax was decreased to 10%, producing an 8% tax difference between these beverage groups. This impact evaluation analysis of the Chilean sugar-sweetened beverage (SSB) tax will estimate the impact of increasing the tax as well as decreasing the tax on soft drinks. The study will use household level grocery purchasing data for Chile. The purchasing records are available from October 2011 to September 2015 (three years before; and one year after the implementation of the tax in October 2014). The investigators will use a series of quasi-experimental approaches to evaluate the causal impact of the SSB tax policy on consumers' behaviour as well as on industry responses in the form of pricing and price promotion decisions.
Study design
- Time perspective
- Retrospective
Who may qualify
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Child, Adult, Older adult
- Study population
- The study population is 2,836 households that arenationally representative of urban areas in Chile.
Key inclusion criteria (1 listed)
- Household in Chile that agreed to participate in the purchasing survey and provided data to a satisfactory degree for the first 2 months.
Key exclusion criteria (1 listed)
- Households that are unwilling to participate in the survey. Households that change physical address. Households with poor compliance to the survey.
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Primary outcome
Volume of sugar-sweetened beverage purchased
Time frame: October 2011 - September 2015
4 secondary outcomes
Consumer shopping patterns - Frequency
Time frame: October 2011 - September 2015
Consumer shopping patterns - Volume
Time frame: October 2011 - September 2015
Market price of sugar-sweetened beverages
Time frame: October 2011 - September 2015
Body mass index of household members
Time frame: October 2011 - September 2015
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 6 Oct 2016.
- Derived from this study: PubMed 29969456Nakamura R, Mirelman AJ, Cuadrado C, Silva-Illanes N, Dunstan J, Suhrcke M. Evaluating the 2014 sugar-sweetened beverage tax in Chile: An observational study in urban areas. PLoS Med. 2018 Jul 3;15(7):e1002596. doi: 10.1371/journal.pmed.1002596. eCollection 2018 Jul.
- Individual participant dataSharing planned: Undecided
Related trials for Chronic Disease
RecruitingPhase 2
Tafasitamab With Acalabrutinib and Venetoclax for the Treatment of Chronic Lymphocytic Leukemia/Small Lymphocytic Lymphoma
Chronic Lymphocytic Leukemia, Chronic Lymphocytic Leukemia/Small Lymphocytic Lymphoma
Not yet recruiting
Feasibility of a Robot-Guided Active Play Intervention for Children With Cerebral Palsy
Cerebral Palsy
Recruiting
PAW-Hydrogel for Chronic Wound Healing
Diabetic Foot Ulcer (DFU), Pressure Ulcer (PU)
Active, not recruitingPhase 2
Safety and Efficacy of Empagliflozin in Hemodialysis
End Stage Renal Disease
Not yet recruitingPhase 1
Phase I Open-Label Safety Trial of Pembrolizumab for Neurological Post- Acute Sequelae of SARS-CoV-2 (PD1-PASC I)
Post-Acute COVID-19 Syndrome
Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Marc Suhrcke, PhD principal investigator
Centre for Health Economics, University of York
Ryota Nakamura, PhD principal investigator
Centre for Health Economics, University of York
Andrew J Mirelman, PhD principal investigator
Centre for Health Economics, University of York
Questions about this trial
What is this clinical trial studying?
An observational study of Chronic Disease and Obesity, run by Marc Suhrcke.
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 1 inclusion and 1 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: finished, as of the sponsor's last update on 6 Oct 2016. Status can change between updates, so confirm with the study contact before making plans.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
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?
Volume of sugar-sweetened beverage purchased (time frame: October 2011 - September 2015). 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 NCT02926001, 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 6 Oct 2016.