Consumer BehaviorNCT06691958
Impact of Chip Thickness and Size on Eating Responses
A study testing Tortilla corn chips 4-5 pieces, eat one piece at time, Tortilla corn chips 90 grams and Extruded corn chips 90 grams in people with Consumer Behavior and Consumer Preference, run by PepsiCo Global R&D at 1 site in United Kingdom.
Trial summary
To analyze prototypes developed with the base and seasonings of products that exhibit variations in chip thickness and size. The information obtained from this analysis will serve as the basis for subsequent research to explore different prototype options with increased satiation properties. Read more about this study
- Who is it for?
- Ages 18 to 65 yearsHealthy volunteers can take part
- Conditions the study is for
- Consumer Behavior, Consumer Preference, Consumer Satisfaction
- What is being tested?
- Tortilla corn chips 4-5 pieces, eat one piece at time, Tortilla corn chips 90 grams and Extruded corn chips 90 grams
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 178 participants
- Where
- 1 siteUnited Kingdom
- Study dates
- 7 Nov 2024to 14 Feb 2025
- Phase
- Interventional
- 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 18 to 65 years
- All sexes
- Healthy volunteers accepted
- Adult, Older adult
Who may be able to join
- Report eating tortilla and/or extruded chips regularly, non-rejector of cheese flavor chips
- Provide informed consent
- Speak and understand English without difficulty
- Willing to eat similar food the day prior and on the day of each visit to the testing facility for ad libitum sessions
- Describe yourself as generally healthy
Who cannot join
- Those who are on restricted diet due to a weight loss or maintenance purpose
- Participants with class III occlusions for ad libitum sessions
- Have abnormal taste, chewing and smell ability
- Smoke or vape
- Being pregnant or breastfeeding
- Allergic or intolerance to any of the product ingredients (section 6), especially milk and wheat
- Participation in a sensory clinical trial within past 7 days (we do not expect carryover issue from the taste testing)
- Participation in any PepsiCo trial within past 6 months
Trial locations and contacts
1 site in 1 country.
United Kingdom1 site
University of Nottingham Sensory Science Centre
Sutton Bonington, Leicestershire, LE12 5RD
About this study
To analyze prototypes developed with the base and seasonings of products that exhibit variations in chip thickness and size. The information obtained from this analysis will serve as the basis for subsequent research to explore different prototype options with increased satiation properties.
Read the detailed description
There are two study components, a sensory study and an ad libitum study. Eighty-eight participants will test tortilla chips and eighty-eight will test extruded chips in the sensory study. On a first-come first-served basis, forty-four of the eighty-eight chip participants from the sensory testing phase will test tortilla chips, and forty-four of the eighty-eight extruded chip participants will test extruded chips in the ad libitum study.
- Being tested
- Tortilla corn chips 4-5 pieces, eat one piece at time, Tortilla corn chips 90 grams, Extruded corn chips 90 grams, Extruded corn chips 4-5 pieces, eat one piece at time
- Keywords
- sensory testing, intake, calories, duration of eating, rate of consumption, snack, liking, satiation, chewing, emotion, satisfaction, fullness
- Medical subject headings
- Consumer Behavior, Personal Satisfaction
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Tortilla corn chips 4-5 pieces, eat one piece at timeOther
Snack
Tortilla corn chips 90 gramsOther
Snack
Extruded corn chips 90 gramsOther
Snack
Extruded corn chips 4-5 pieces, eat one piece at timeOther
Snack
| Study group | Role | What they receive |
|---|---|---|
| Standard tortilla chip for Sensory Study | Active comparator | Snack comparable to marketed version Receives: Other: Tortilla corn chips 4-5 pieces, eat one piece at time |
| Thicker than standard tortilla chip with same amount of seasoning per 100g for Sensory Study | Experimental | Snack Receives: Other: Tortilla corn chips 4-5 pieces, eat one piece at time |
| Standard extruded chip for Sensory Study | Active comparator | Snack comparable to marketed version Receives: Other: Extruded corn chips 4-5 pieces, eat one piece at time |
| Bigger extruded chip with same seasoning per 100g for Sensory Study | Experimental | Snack Receives: Other: Extruded corn chips 4-5 pieces, eat one piece at time |
| Bigger extruded chip with same concentration of seasoning on surface per 100g for Sensory Study | Experimental | Snack Receives: Other: Extruded corn chips 4-5 pieces, eat one piece at time |
| Standard tortilla chip for Ad libitum Study | Active comparator | Snack comparable to marketed version Receives: Other: Tortilla corn chips 90 grams |
| Thicker than standard tortilla chip with same seasoning per 100g for Ad libitum Study | Experimental | Snack Receives: Other: Tortilla corn chips 90 grams |
| Standard extruded chip for Ad libitum Study | Active comparator | Snack comparable to marketed version Receives: Other: Extruded corn chips 90 grams |
| Bigger extruded chip with same seasoning per 100g for Ad libitum Study | Experimental | Snack Receives: Other: Extruded corn chips 90 grams |
| Bigger extruded chip with same concentration of seasoning on surface per 100g for Ad libitum Study | Experimental | Snack Receives: Other: Extruded corn chips 90 grams |
What is being measured
The primary outcome is the main question the study is designed to answer.
Satiation: Intake in grams
gram weight of consumption
Measured: Total grams consumed at each 30-minute ad libitum testing session from beginning of eating until end of eating on separate days, two test visits for tortilla chips arm and three test visits for extruded chips arm.
Satiation: Nutrition
Intake in calories
Measured: Total calories consumed at each 30-minute ad libitum testing session from beginning of eating until end of eating on separate days, two test visits for tortilla chips arm and three test visits for extruded chips arm.
Duration of eating
In minutes
Measured: Timed from beginning of eating until end of eating at each 30-minute ad libitum testing sessions on separate days, two test visits for tortilla chips arm and three test visits for extruded chips arm.
Rate of consumption
Speed of eating in minutes
Measured: Measured in grams per minute at each 30-minute ad libitum testing session from beginning of eating until end of eating, on separate days, two test visits for tortilla chips arm and three test visits for extruded chips arm.
Consumer response: Liking
9-point hedonic scale from extremely dislike to extremely like
Measured: At end of eating each product at the one 45-minute sensory session, and at end of each 30-minute ad libitum session on separate days, two visits for the tortilla chips arm and three visits for the extruded chips arm. Higher score is the better outcome.
Consumer response: Satisfaction
9-point hedonic scale from extremely dissatisfied to extremely satisfied
Measured: At end of eating each product at the one 45-minute sensory session and at end of each ad libitum session on separate days, two visits for tortilla chips arm and three visits for the extruded chips arm. Higher satisfaction is a better outcome.
Perceived sensory properties (TCATA)
Using Temporal CATA (TCATA) choose all that apply from list of crunchy, hard, tooth clogging, loose particles, soft, airy melting
Measured: Over a period of 60 seconds for each product at the one 45-minute sensory session and at each ad libitum session on separate days, two visits for tortilla chips arm and three visits for the extruded chips arm.
Perceived sensory properties (CATA)
CATA
Measured: Check all that apply for each product while sampling them at the one 45-minute sensory session. A favorable rating would be a better outcome.
Emotional responses using CATA
Essence 25 using CATA
Measured: Check all that apply for each product while sampling them at the one 45-minute sensory session. Positive ratings would be a better outcome than negative..
Hunger and Fullness and how much could you eat right now
Using a 3 item Visual Analog Scale (VAS) to mark along 100 mm line the level of hunger and fullness from not at all to totally full
Measured: Before eating and right after eating as much as they want to eat at each 30-minute ad libitum session on separate days, two visits for tortilla chips arm and three visits for the extruded chips arm.
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted18 Nov 2024
- Study start7 Nov 2024
- Primary completion14 Feb 2025
- Study completion14 Feb 2025
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Consumer BehaviorStudies 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
- Interventional
- Phase
- Phase N/A
- Primary purpose
- Basic science
- Allocation
- Randomised
- Intervention model
- Crossover
- Masking
- Quadruple blind
- Who is masked
- Participant, Care provider, Investigator, Outcomes assessor
- Enrolment
- 178 participants (actual)
Sponsor and investigators
- Lead sponsor
- PepsiCo Global R&D
- Sponsor type
- Industry (pharma, biotech, devices)
- Responsible party
- Sponsor
- Investigators
- Qian Yang, PhD, Principal investigator, University of Nottingham, Sensory Science Centre
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT06691958
- Sponsor's protocol ID
- PEP-2409
- Status last verified
- May 2024
- First submitted
- 11 Nov 2024
- Last updated
- 7 May 2025
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- No
Study at a glance
From the registry record, last updated by the sponsor on 7 May 2025. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Impact of Chip Thickness and Size on Eating Responses
- ClinicalTrials.gov ID
- NCT06691958
- Acronym / sponsor ID
- PEP-2409
- Keywords
- sensory testing, intake, calories, duration of eating, rate of consumption, snack, liking, satiation
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 178 participants (actual)
- Lead sponsor
- PepsiCo Global R&DIndustry (pharma, biotech, devices)
- Study start
- 7 Nov 2024 (actual)
- Primary completion
- 14 Feb 2025 (actual)
- Study completion
- 14 Feb 2025 (actual)
- First posted
- 18 Nov 2024 (actual)
- 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.
To analyze prototypes developed with the base and seasonings of products that exhibit variations in chip thickness and size. The information obtained from this analysis will serve as the basis for subsequent research to explore different prototype options with increased satiation properties.
Detailed description
There are two study components, a sensory study and an ad libitum study. Eighty-eight participants will test tortilla chips and eighty-eight will test extruded chips in the sensory study. On a first-come first-served basis, forty-four of the eighty-eight chip participants from the sensory testing phase will test tortilla chips, and forty-four of the eighty-eight extruded chip participants will test extruded chips in the ad libitum study.
Study design
- Primary purpose
- Basic science
- Allocation
- Randomised
- Intervention model
- Crossover
- Masking
- Quadruple blind (participant, care provider, investigator, outcomes assessor)
- Number of arms
- 10
| Arm | Type | Receives |
|---|---|---|
| Standard tortilla chip for Sensory Study | Active comparator | Other: Tortilla corn chips 4-5 pieces, eat one piece at timeSnack comparable to marketed version |
| Thicker than standard tortilla chip with same amount of seasoning per 100g for Sensory Study | Experimental | Other: Tortilla corn chips 4-5 pieces, eat one piece at timeSnack |
| Standard extruded chip for Sensory Study | Active comparator | Other: Extruded corn chips 4-5 pieces, eat one piece at timeSnack comparable to marketed version |
| Bigger extruded chip with same seasoning per 100g for Sensory Study | Experimental | Other: Extruded corn chips 4-5 pieces, eat one piece at timeSnack |
| Bigger extruded chip with same concentration of seasoning on surface per 100g for Sensory Study | Experimental | Other: Extruded corn chips 4-5 pieces, eat one piece at timeSnack |
| Standard tortilla chip for Ad libitum Study | Active comparator | Other: Tortilla corn chips 90 gramsSnack comparable to marketed version |
| Thicker than standard tortilla chip with same seasoning per 100g for Ad libitum Study | Experimental | Other: Tortilla corn chips 90 gramsSnack |
| Standard extruded chip for Ad libitum Study | Active comparator | Other: Extruded corn chips 90 gramsSnack comparable to marketed version |
| Bigger extruded chip with same seasoning per 100g for Ad libitum Study | Experimental | Other: Extruded corn chips 90 gramsSnack |
| Bigger extruded chip with same concentration of seasoning on surface per 100g for Ad libitum Study | Experimental | Other: Extruded corn chips 90 gramsSnack |
Who may qualify
- Ages
- 18 to 65 years
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (5 listed)
- Report eating tortilla and/or extruded chips regularly, non-rejector of cheese flavor chips
- Provide informed consent
- Speak and understand English without difficulty
- Willing to eat similar food the day prior and on the day of each visit to the testing facility for ad libitum sessions
- Describe yourself as generally healthy
Key exclusion criteria (8 listed)
- Those who are on restricted diet due to a weight loss or maintenance purpose
- Participants with class III occlusions for ad libitum sessions
- Have abnormal taste, chewing and smell ability
- Smoke or vape
- Being pregnant or breastfeeding
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| Tortilla corn chips 4-5 pieces, eat one piece at timeSnack | Other | Standard tortilla chip for Sensory Study, Thicker than standard tortilla chip with same amount of seasoning per 100g for Sensory Study |
| Tortilla corn chips 90 gramsSnack | Other | Standard tortilla chip for Ad libitum Study, Thicker than standard tortilla chip with same seasoning per 100g for Ad libitum Study |
| Extruded corn chips 90 gramsSnack | Other | Bigger extruded chip with same concentration of seasoning on surface per 100g for Ad libitum Study, Bigger extruded chip with same seasoning per 100g for Ad libitum Study, Standard extruded chip for Ad libitum Study |
| Extruded corn chips 4-5 pieces, eat one piece at timeSnack | Other | Bigger extruded chip with same concentration of seasoning on surface per 100g for Sensory Study, Bigger extruded chip with same seasoning per 100g for Sensory Study, Standard extruded chip for Sensory Study |
Primary outcome
Satiation: Intake in grams
Time frame: Total grams consumed at each 30-minute ad libitum testing session from beginning of eating until end of eating on separate days, two test visits for tortilla chips arm and three test visits for extruded chips arm.
gram weight of consumption
Satiation: Nutrition
Time frame: Total calories consumed at each 30-minute ad libitum testing session from beginning of eating until end of eating on separate days, two test visits for tortilla chips arm and three test visits for extruded chips arm.
Intake in calories
Duration of eating
Time frame: Timed from beginning of eating until end of eating at each 30-minute ad libitum testing sessions on separate days, two test visits for tortilla chips arm and three test visits for extruded chips arm.
In minutes
Rate of consumption
Time frame: Measured in grams per minute at each 30-minute ad libitum testing session from beginning of eating until end of eating, on separate days, two test visits for tortilla chips arm and three test visits for extruded chips arm.
Speed of eating in minutes
Consumer response: Liking
Time frame: At end of eating each product at the one 45-minute sensory session, and at end of each 30-minute ad libitum session on separate days, two visits for the tortilla chips arm and three visits for the extruded chips arm. Higher score is the better outcome.
9-point hedonic scale from extremely dislike to extremely like
Consumer response: Satisfaction
Time frame: At end of eating each product at the one 45-minute sensory session and at end of each ad libitum session on separate days, two visits for tortilla chips arm and three visits for the extruded chips arm. Higher satisfaction is a better outcome.
9-point hedonic scale from extremely dissatisfied to extremely satisfied
Perceived sensory properties (TCATA)
Time frame: Over a period of 60 seconds for each product at the one 45-minute sensory session and at each ad libitum session on separate days, two visits for tortilla chips arm and three visits for the extruded chips arm.
Using Temporal CATA (TCATA) choose all that apply from list of crunchy, hard, tooth clogging, loose particles, soft, airy melting
Perceived sensory properties (CATA)
Time frame: Check all that apply for each product while sampling them at the one 45-minute sensory session. A favorable rating would be a better outcome.
CATA
Emotional responses using CATA
Time frame: Check all that apply for each product while sampling them at the one 45-minute sensory session. Positive ratings would be a better outcome than negative..
Essence 25 using CATA
Hunger and Fullness and how much could you eat right now
Time frame: Before eating and right after eating as much as they want to eat at each 30-minute ad libitum session on separate days, two visits for tortilla chips arm and three visits for the extruded chips arm.
Using a 3 item Visual Analog Scale (VAS) to mark along 100 mm line the level of hunger and fullness from not at all to totally full
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 7 May 2025.
- Individual participant dataSharing planned: No
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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.
Qian Yang, PhD principal investigator
University of Nottingham, Sensory Science Centre
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing Tortilla corn chips 4-5 pieces, eat one piece at time, Tortilla corn chips 90 grams and Extruded corn chips 90 grams in people with Consumer Behavior and Consumer Preference, run by PepsiCo Global R&D at 1 site in United Kingdom.
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 5 inclusion and 8 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 7 May 2025. 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 United Kingdom. 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. 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?
Satiation: Intake in grams (time frame: Total grams consumed at each 30-minute ad libitum testing session from beginning of eating until end of eating on separate days, two test visits for tortilla chips arm and three test visits for extruded chips arm.). The study lists 10 primary outcomes in all. It is what the study was designed to measure, not a finding.
Where can I read the original study information?
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 7 May 2025; AzTrials last refreshed its copy on 7 Nov 2026.