Health BehaviorSCS2015NCT02464787
Evaluation of Changes in Skin Carotenoid Scores in Medical Students Following a Dietary Supplement-based Intervention
A study testing LifePak Nano in people with Health Behavior, run by Texas Tech University Health Sciences Center at 1 site in United States.
Trial summary
Skin Carotenoid Scores (SCS) are a biomarker of overall antioxidant status. This study extends an earlier study in which an increase in skin carotenoid scores (SCS) was observed in subjects who increased their intake of fruits and vegetables. The scores were determined using the Raman Spectroscopy. Read more about this study
- Who is it for?
- Ages 18 to 89 yearsHealthy volunteers can take part
- Conditions the study is for
- Health Behavior
- What is being tested?
- LifePak Nano
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 42 participants
- Where
- 1 siteUnited States
- Study dates
- May 2015to 14 Oct 2016
- 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 89 years
- All sexes
- Healthy volunteers accepted
- Adult, Older adult
Who may be able to join
- Medical students must be willing to maintain the increased consumption of dietary supplements, two twin-sachet packets of seven (7) supplements twice per day, for the entire eight-week experimental period, to maintain the logs and to report at each of the times that measurements will be made. Individuals taking non-Pharmanex dietary supplements e.g. vitamins, minerals, herbals, and/or antioxidants will be asked to discontinue use at the time of the consenting to the study. Study supplements will replace all previous dietary supplements.
- BMI between 20 and 29.9
- Non-smoker, non-pregnant, non-lactating
- No use of tanning beds or sunless tanning products during the study
Who cannot join
- Prior participation in the previous study (L14 -128)
- Individuals suffering from any chronic illness requiring ongoing medication, such as diabetes, hypertension, heart disease, GI disorders or other metabolic disorders
- Individuals allergic or intolerant to shellfish,
- pregnant or lactating women,
- smokers
- individuals with BMI > 30
- Prior ingestion of LifePak Nano or other Pharmanex dietary supplements within the past 3 months.
- SCS score less than 10,000 (< 10,000)
Trial locations and contacts
1 site in 1 country.
United States1 site
Texas Tech University Health Sciences Center
Lubbock, Texas, 79430
About this study
Official title: Evaluation of Changes in Skin Carotenoid Score in Medical Students Following a Dietary Supplement-based Intervention
Skin Carotenoid Scores (SCS) are a biomarker of overall antioxidant status. This study extends an earlier study in which an increase in skin carotenoid scores (SCS) was observed in subjects who increased their intake of fruits and vegetables. The scores were determined using the Raman Spectroscopy. In that study subjects were assigned to one of four groups based on their baseline SCS. For unknown reasons, the groups with the highest and lowest baseline SCS failed to show an increase whereas the two intermediate groups did. One possible explanation might be that intakes varied more than expected and was not obvious due to self-reporting of intake of fruits and vegetables with different contents.
Read the detailed description
This current project will be an interventional, non-invasive study examining changes in skin carotenoid levels over time in individuals who increase their carotenoid intake by taking a dietary supplement containing a known amount of carotenoids. After a two-week control period eating their normal diet, forty medical students meeting study inclusion criteria will be asked to take a dietary supplement over an eight week period of time. Students will be given twin-sachet packets of LifePak Nano supplements containing five capsules (dry ingredients) and two CR-6 Liponutrient softgel capsules (liquid ingredients, including omega-3 fatty acids and nanosized carotenoids). These will be taken twice a day with eight ounces of liquid at the morning and evening meal. SCS will be measured every 2 weeks. At the end of this period, the students will be asked to discontinue dietary supplement intake and follow their usual diet for 2 weeks then their SCS measured again.
- Conditions
- Health Behavior
- Being tested
- LifePak Nano
- Keywords
- antioxidants, carotenoids, diet
- Medical subject headings
- Health Behavior
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
LifePak NanoDietary supplement
Two twin-sachet packets of seven (7) supplements twice per day, for the entire eight-week experimental period.
| Study group | Role | What they receive |
|---|---|---|
| Medical Students | Experimental | Medical students willing to maintain the increased consumption of LifePak Nano dietary supplements, two twin-sachet packets of seven (7) supplements twice per day, for the entire eight-week experimental period, to maintain the logs and to report at each of the times that measurements will be made. Receives: Dietary Supplement: LifePak Nano |
What is being measured
The primary outcome is the main question the study is designed to answer.
Change in skin carotenoid scores (SCS)
Skin Carotenoid Scores (SCS) are a biomarker of overall antioxidant status. The purpose of this study is to measure changes in SCS in medical students taking dietary supplements over a 12-week period of time. SCS will measured using a Bio-photonic Scanner. This scanner non-invasively measures carotenoid levels in the skin using optical signals. By placing the palm of the hand in front of a low-energy blue light for less than two minutes, the scanner can determine the SCS.
Measured: 12 weeks
Secondary outcomes (1)
Change in body weight
Weight will be measured on a calibrated balance scale over a 12-week period of time. Subjects will remove shoes, keys, cellphones, or other objects from their person before being weighed.
Measured: 12 weeks
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted8 Jun 2015 (estimated)
- Study startMay 2015
- Primary completion20 Mar 2016
- Study completion14 Oct 2016
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (12)Papers the sponsor has linked to this study.
- Other trials for Health 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
- Other
- Allocation
- Not applicable
- Intervention model
- Single group
- Masking
- None (open label)
- Enrolment
- 42 participants (actual)
Sponsor and investigators
- Lead sponsor
- Texas Tech University Health Sciences Center
- Sponsor type
- University, hospital or other
- Responsible party
- Sponsor
- Investigators
- Katherine B Chauncey, PhD, RDN, Principal investigator, Texas Tech University Health Sciences Center
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT02464787
- Sponsor's protocol ID
- L15-148
- Other IDs
- CRI 15-054
- Acronym
- SCS2015
- Status last verified
- Aug 2020
- First submitted
- 28 May 2015
- Last updated
- 14 Aug 2020
- Results posted
- No
- Data monitoring committee
- Yes
Publications
Baranowski T. Understanding the behavioral linkages needed for designing effective interventions to increase fruit and vegetable intake in diverse populations. J Am Diet Assoc. 2011 Oct;111(10):1472-5. doi: 10.1016/j.jada.2011.07.014. No abstract available.
PubMed 21963012Dietary Guidelines for Americans, 2010; United States Department of Agriculture (USDA), United States Department of Health and Human Services: Dietary Guidelines for Americans, 2010. www.dietaryguidelines.gov
Ermakov IV, Ermakova MR, McClane RW, Gellermann W. Resonance Raman detection of carotenoid antioxidants in living human tissues. Opt Lett. 2001 Aug 1;26(15):1179-81. doi: 10.1364/ol.26.001179.
PubMed 18049555Ermakov IV, Sharifzadeh M, Ermakova M, Gellermann W. Resonance Raman detection of carotenoid antioxidants in living human tissue. J Biomed Opt. 2005 Nov-Dec;10(6):064028. doi: 10.1117/1.2139974.
PubMed 16409093Ermakov IV, Gellermann W. Validation model for Raman based skin carotenoid detection. Arch Biochem Biophys. 2010 Dec 1;504(1):40-9. doi: 10.1016/j.abb.2010.07.023. Epub 2010 Aug 1.
PubMed 20678465Institute of Medicine (US) Panel on Dietary Antioxidants and Related Compounds. Dietary Reference Intakes for Vitamin C, Vitamin E, Selenium, and Carotenoids. Washington (DC): National Academies Press (US); 2000. Available from http://www.ncbi.nlm.nih.gov/books/NBK225483/
PubMed 25077263Jahns L, Johnson LK, Mayne ST, Cartmel B, Picklo MJ Sr, Ermakov IV, Gellermann W, Whigham LD. Skin and plasma carotenoid response to a provided intervention diet high in vegetables and fruit: uptake and depletion kinetics. Am J Clin Nutr. 2014 Sep;100(3):930-7. doi: 10.3945/ajcn.114.086900. Epub 2014 Jul 9.
PubMed 25008856Krebs-Smith SM, Guenther PM, Subar AF, Kirkpatrick SI, Dodd KW. Americans do not meet federal dietary recommendations. J Nutr. 2010 Oct;140(10):1832-8. doi: 10.3945/jn.110.124826. Epub 2010 Aug 11.
PubMed 20702750Mayne ST, Cartmel B, Scarmo S, Lin H, Leffell DJ, Welch E, Ermakov I, Bhosale P, Bernstein PS, Gellermann W. Noninvasive assessment of dermal carotenoids as a biomarker of fruit and vegetable intake. Am J Clin Nutr. 2010 Oct;92(4):794-800. doi: 10.3945/ajcn.2010.29707. Epub 2010 Aug 4.
PubMed 20685953Mayne ST, Cartmel B, Scarmo S, Jahns L, Ermakov IV, Gellermann W. Resonance Raman spectroscopic evaluation of skin carotenoids as a biomarker of carotenoid status for human studies. Arch Biochem Biophys. 2013 Nov 15;539(2):163-70. doi: 10.1016/j.abb.2013.06.007. Epub 2013 Jun 30.
PubMed 23823930McKay DL, Perrone G, Rasmussen H, Dallal G, Hartman W, Cao G, Prior RL, Roubenoff R, Blumberg JB. The effects of a multivitamin/mineral supplement on micronutrient status, antioxidant capacity and cytokine production in healthy older adults consuming a fortified diet. J Am Coll Nutr. 2000 Oct;19(5):613-21. doi: 10.1080/07315724.2000.10718959.
PubMed 11022875Scarmo S, Cartmel B, Lin H, Leffell DJ, Ermakov IV, Gellermann W, Bernstein PS, Mayne ST. Single v. multiple measures of skin carotenoids by resonance Raman spectroscopy as a biomarker of usual carotenoid status. Br J Nutr. 2013 Sep 14;110(5):911-7. doi: 10.1017/S000711451200582X. Epub 2013 Jan 28.
PubMed 23351238
Study at a glance
From the registry record, last updated by the sponsor on 14 Aug 2020. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Evaluation of Changes in Skin Carotenoid Score in Medical Students Following a Dietary Supplement-based Intervention
- ClinicalTrials.gov ID
- NCT02464787
- Acronym / sponsor ID
- SCS2015 / L15-148
- Conditions
- Health Behavior
- Keywords
- antioxidants, carotenoids, diet
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 42 participants (actual)
- Lead sponsor
- Texas Tech University Health Sciences CenterUniversity, hospital or other
- Study start
- May 2015 (actual)
- Primary completion
- 20 Mar 2016 (actual)
- Study completion
- 14 Oct 2016 (actual)
- First posted
- 8 Jun 2015 (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.
Skin Carotenoid Scores (SCS) are a biomarker of overall antioxidant status. This study extends an earlier study in which an increase in skin carotenoid scores (SCS) was observed in subjects who increased their intake of fruits and vegetables. The scores were determined using the Raman Spectroscopy. In that study subjects were assigned to one of four groups based on their baseline SCS. For unknown reasons, the groups with the highest and lowest baseline SCS failed to show an increase whereas the two intermediate groups did. One possible explanation might be that intakes varied more than expected and was not obvious due to self-reporting of intake of fruits and vegetables with different contents.
Detailed description
This current project will be an interventional, non-invasive study examining changes in skin carotenoid levels over time in individuals who increase their carotenoid intake by taking a dietary supplement containing a known amount of carotenoids. After a two-week control period eating their normal diet, forty medical students meeting study inclusion criteria will be asked to take a dietary supplement over an eight week period of time. Students will be given twin-sachet packets of LifePak Nano supplements containing five capsules (dry ingredients) and two CR-6 Liponutrient softgel capsules (liquid ingredients, including omega-3 fatty acids and nanosized carotenoids). These will be taken twice a day with eight ounces of liquid at the morning and evening meal. SCS will be measured every 2 weeks. At the end of this period, the students will be asked to discontinue dietary supplement intake and follow their usual diet for 2 weeks then their SCS measured again.
Study design
- Primary purpose
- Other
- Allocation
- Not applicable
- Intervention model
- Single group
- Masking
- None (open label)
- Number of arms
- 1
| Arm | Type | Receives |
|---|---|---|
| Medical Students | Experimental | Dietary Supplement: LifePak NanoMedical students willing to maintain the increased consumption of LifePak Nano dietary supplements, two twin-sachet packets of seven (7) supplements twice per day, for the entire eight-week experimental period, to maintain the logs and to report at each of the times that measurements will be made. |
Who may qualify
- Ages
- 18 to 89 years
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (4 listed)
- Medical students must be willing to maintain the increased consumption of dietary supplements, two twin-sachet packets of seven (7) supplements twice per day, for the entire eight-week experimental period, to maintain the logs and to report at each of the times that measurements will be made. Individuals taking non-Pharmanex dietary supplements e.g. vitamins, minerals, herbals, and/or antioxidants will be asked to discontinue use at the time of the consenting to the study. Study supplements will replace all previous dietary supplements.
- BMI between 20 and 29.9
- Non-smoker, non-pregnant, non-lactating
- No use of tanning beds or sunless tanning products during the study
Key exclusion criteria (8 listed)
- Prior participation in the previous study (L14 -128)
- Individuals suffering from any chronic illness requiring ongoing medication, such as diabetes, hypertension, heart disease, GI disorders or other metabolic disorders
- Individuals allergic or intolerant to shellfish,
- pregnant or lactating women,
- smokers
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 |
|---|---|---|
| LifePak NanoTwo twin-sachet packets of seven (7) supplements twice per day, for the entire eight-week experimental period. | Dietary supplement | Medical Students |
Primary outcome
Change in skin carotenoid scores (SCS)
Time frame: 12 weeks
Skin Carotenoid Scores (SCS) are a biomarker of overall antioxidant status. The purpose of this study is to measure changes in SCS in medical students taking dietary supplements over a 12-week period of time. SCS will measured using a Bio-photonic Scanner. This scanner non-invasively measures carotenoid levels in the skin using optical signals. By placing the palm of the hand in front of a low-energy blue light for less than two minutes, the scanner can determine the SCS.
1 secondary outcome
Change in body weight
Time frame: 12 weeks
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 14 Aug 2020.
- Background: PubMed 21963012Baranowski T. Understanding the behavioral linkages needed for designing effective interventions to increase fruit and vegetable intake in diverse populations. J Am Diet Assoc. 2011 Oct;111(10):1472-5. doi: 10.1016/j.jada.2011.07.014. No abstract available.
- BackgroundDietary Guidelines for Americans, 2010; United States Department of Agriculture (USDA), United States Department of Health and Human Services: Dietary Guidelines for Americans, 2010. www.dietaryguidelines.gov
- Background: PubMed 18049555Ermakov IV, Ermakova MR, McClane RW, Gellermann W. Resonance Raman detection of carotenoid antioxidants in living human tissues. Opt Lett. 2001 Aug 1;26(15):1179-81. doi: 10.1364/ol.26.001179.
- Background: PubMed 16409093Ermakov IV, Sharifzadeh M, Ermakova M, Gellermann W. Resonance Raman detection of carotenoid antioxidants in living human tissue. J Biomed Opt. 2005 Nov-Dec;10(6):064028. doi: 10.1117/1.2139974.
- Background: PubMed 20678465Ermakov IV, Gellermann W. Validation model for Raman based skin carotenoid detection. Arch Biochem Biophys. 2010 Dec 1;504(1):40-9. doi: 10.1016/j.abb.2010.07.023. Epub 2010 Aug 1.
- Background: PubMed 25077263Institute of Medicine (US) Panel on Dietary Antioxidants and Related Compounds. Dietary Reference Intakes for Vitamin C, Vitamin E, Selenium, and Carotenoids. Washington (DC): National Academies Press (US); 2000. Available from http://www.ncbi.nlm.nih.gov/books/NBK225483/
- Background: PubMed 25008856Jahns L, Johnson LK, Mayne ST, Cartmel B, Picklo MJ Sr, Ermakov IV, Gellermann W, Whigham LD. Skin and plasma carotenoid response to a provided intervention diet high in vegetables and fruit: uptake and depletion kinetics. Am J Clin Nutr. 2014 Sep;100(3):930-7. doi: 10.3945/ajcn.114.086900. Epub 2014 Jul 9.
- Background: PubMed 20702750Krebs-Smith SM, Guenther PM, Subar AF, Kirkpatrick SI, Dodd KW. Americans do not meet federal dietary recommendations. J Nutr. 2010 Oct;140(10):1832-8. doi: 10.3945/jn.110.124826. Epub 2010 Aug 11.
- Background: PubMed 20685953Mayne ST, Cartmel B, Scarmo S, Lin H, Leffell DJ, Welch E, Ermakov I, Bhosale P, Bernstein PS, Gellermann W. Noninvasive assessment of dermal carotenoids as a biomarker of fruit and vegetable intake. Am J Clin Nutr. 2010 Oct;92(4):794-800. doi: 10.3945/ajcn.2010.29707. Epub 2010 Aug 4.
- Background: PubMed 23823930Mayne ST, Cartmel B, Scarmo S, Jahns L, Ermakov IV, Gellermann W. Resonance Raman spectroscopic evaluation of skin carotenoids as a biomarker of carotenoid status for human studies. Arch Biochem Biophys. 2013 Nov 15;539(2):163-70. doi: 10.1016/j.abb.2013.06.007. Epub 2013 Jun 30.
- Background: PubMed 11022875McKay DL, Perrone G, Rasmussen H, Dallal G, Hartman W, Cao G, Prior RL, Roubenoff R, Blumberg JB. The effects of a multivitamin/mineral supplement on micronutrient status, antioxidant capacity and cytokine production in healthy older adults consuming a fortified diet. J Am Coll Nutr. 2000 Oct;19(5):613-21. doi: 10.1080/07315724.2000.10718959.
- Background: PubMed 23351238Scarmo S, Cartmel B, Lin H, Leffell DJ, Ermakov IV, Gellermann W, Bernstein PS, Mayne ST. Single v. multiple measures of skin carotenoids by resonance Raman spectroscopy as a biomarker of usual carotenoid status. Br J Nutr. 2013 Sep 14;110(5):911-7. doi: 10.1017/S000711451200582X. Epub 2013 Jan 28.
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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.
Katherine B Chauncey, PhD, RDN principal investigator
Texas Tech University Health Sciences Center
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing LifePak Nano in people with Health Behavior, run by Texas Tech University Health Sciences Center at 1 site in United States.
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 4 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 14 Aug 2020. 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 States. 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?
Change in skin carotenoid scores (SCS) (time frame: 12 weeks). 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 NCT02464787, which also lists 12 linked publications.
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 14 Aug 2020; AzTrials last refreshed its copy on 8 Nov 2026.