Cardiovascular DiseaseCLASSNCT01234636
Conjugated Linoleic Acid Supplementation Study
A study of Cardiovascular Disease, run by University of Aberdeen at 1 site in United Kingdom.
Trial summary
Cardiovascular disease is a major cause of mortality worldwide resulting in one out of three global deaths. One of the main characteristics of cardiovascular disease is impaired blood flow and increased formation of clots. Platelets are clot-forming cells responsible for prevention of bleeding. Read more about this study
- Who is it for?
- Ages 30 to 74 yearsHealthy volunteers can take part
- Conditions the study is for
- Cardiovascular Disease
- Could I receive a placebo?
- Yes, some participants may receive a placebo
- How many people
- 50 participants
- Where
- 1 siteUnited Kingdom
- Study dates
- Nov 2010to Nov 2012
- 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 30 to 74 years
- All sexes
- Healthy volunteers accepted
- Adult, Older adult
Who may be able to join
- blood pressure below 160/90 mmHg;
- fasting plasma glucose < 7 mmol/L;
- total cholesterol < 8 mmol/L,with cholesterol/HDL ratio < 6 and/or ASSIGN score < 20%)
- platelet count > 170x109/L
- haematocrit above 40 % for males and above 35 % for females
- haemoglobin above 130 g/L for males and above 115 g/L for females
Show all 16Show fewer
- having a 10-20% risk for developing cardiovascular disease within the next 10 years based on the ASSIGN calculation (http://cvrisk.mvm.ed.ac.uk/index.htm) including the following factors: age, gender, number of cigarettes smoked per day, Scottish Index of Multiple Deprivation (SIMD)/postcode, systolic blood pressure, levels of total and HDL cholesterol and family history of cardiovascular disease or having at least one additional risk factor such as being over 50 years old, BMI above 25 kg/m2, elevated triglyceride levels (> 1.7 mmol/L) or elevated glucose levels (> 5.6 mmol/L);
- Exclusion Criteria:Exclusion criteria Subjects are excluded if
- They are regularly taking aspirin or aspirin-containing drugs, or other anti-inflammatory drugs;
- They are taking drugs or herbal medicines known to alter platelet function or the haemostatic system in general;
- They are diagnosed with diabetes, hypertension, renal, hepatic, haematological disease or coronary heart disease;
- They are undertaking more than 6 hours vigorous exercise per week
- They are pregnant (or planning to become pregnant) or lactating;
- They have given a pint of blood for transfusion purposes within the last month;
- They have unsuitable veins for blood sampling;
- They are inability to understand the participant information sheet or inability to speak, read and understand the English language.
Who cannot join
None listed.
Trial locations and contacts
1 site in 1 country.
United Kingdom1 site
Rowett Institute of Nutrition and Health
Aberdeen, Scotland, AB21 9SB
About this study
Official title: Effects of cis9,trans11 Conjugated Linoleic Acid on Platelet Function, Markers of Haemostasis and Inflammation on Humans
Cardiovascular disease is a major cause of mortality worldwide resulting in one out of three global deaths. One of the main characteristics of cardiovascular disease is impaired blood flow and increased formation of clots. Platelets are clot-forming cells responsible for prevention of bleeding. However, in disease state they may be overly activated and tend to stick to each other, promoting blood clots and blockage of vessels.
Conjugated linoleic acids (CLA) are unique fatty acids present in dairy food products and beef which would help to prevent platelets from clotting and thus help to prevent cardiovascular disease. However, the mechanisms by which those fatty acids affect platelet function are not yet fully understood. We designed a human intervention study assessing the mechanisms by which CLA beneficially affect platelet function and markers of haemostasis and inflammation in humans.
Read the detailed description
Despite being trans fatty acids, dietary conjugated linoleic acids( CLA) have been associated with decreased atherogenesis, beneficial effects on insulin sensitivity , glucose and lipid profile and body composition in animal studies.Todate only few studies have studied the effects of the two individual CLA isomers on body composition , lipoprotein metabolism immune function , inflammation , insulin sensitivity and oxidative stress in humans.
A previous study revealed that both cis9,trans11 and trans10,cis12 CLA, as well as CLA mix, significantly decreased agonist-induced platelet aggregation and TxB2 production ex vivo compared with linoleic acid. No effect on agonist-induced platelet aggregation or other blood clotting parameters in healthy female volunteers was observed upon supplementation with 3.9 g/d CLA, compared with sunflower oil, but this may have been due to the low number of subjects participating in this study.
Indeed, supplementation with 13.0 g/day of CLA mix - 50:50 blend, compared with placebo oil, significantly decreased fibrinogen levels in type 2 diabetes patients, and fibrinogen and plasminogen activator inhibitor-1 levels were significantly lower upon intervention with CLA milk (4.7 g/d cis9,trans11 CLA and 0.4 g/d trans10,cis12 CLA), compared with CLA mix (2.3 g/d cis9,trans11 CLA and 2.2 g/d trans10,cis12 CLA), and lower compared with olive oil, in postmenopausal women.Thus overall evidence indicates that especially the cis9,trans11 CLA isomer may prevent platelet activation and aggregation, and possibly display anticoagulant properties. However, so far this has not been assessed in detail.
In this study we assess effects of supplementation of cis9,trans11 CLA-rich oil on platelet function by measuring not only platelet aggregation but also in vitro coagulation and platelet activation in healthy overweight humans. In addition, we examine the effects of CLA supplementation on plasma and cellular marker of inflammation and oxidative stress.
- Conditions
- Cardiovascular Disease
- Being tested
- Placebo oil
- Keywords
- Platelets, Platelet aggregation, Platelet activation, Platelet function, Light transmission aggregometry, Flow cytometry, Platelet function analyzer-100 (PFA-100), Linoleic acid, conjugated, cis9, trans11 conjugated linoleic acid, dietary supplement, short-term intervention
- Medical subject headings
- Cardiovascular Diseases
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Placebo oilDietary supplement
Placebo oil of 4g/day
| Study group | Role | What they receive |
|---|---|---|
| cis9,trans 11 CLA oil | Active comparator | 50 volunteers on cross over design , receiving 4g/day of cis9,trans11 CLA Receives: Dietary Supplement: Placebo oil |
| Placebo oil | Placebo comparator | 50 volunteers cross over design, placebo oil 4g/day Receives: Dietary Supplement: Placebo oil |
What is being measured
The primary outcome is the main question the study is designed to answer.
Change of expression of P-selectin and fibrinogen receptor activation on platelets by flow cytometry
Using fluorescently-conjugated monoclonal antibodies and whole blood flow cytometry after ex vivo stimulation with adenosine diphosphate (ADP), thrombin receptor-activating peptide (TRAP) P-selectin expression as early marker of platelet activation Activated fibrinogen receptor as late marker of platelet activation
Measured: At 2 weeks
Change of in vitro bleeding time using the Platelet Function Analyzer (PFA-100)
Using collagen-epinephrine coated cartridges Using collagen-adenosine diphosphate coated cartridges
Measured: At 2 weeks supplementation
Change of coagulation marker assessed as fibrinogen levels in plasma
Using semi-automated coagulometer using fibrinogen assay according to Clauss method
Measured: At 2 weeks supplementation
Secondary outcomes (2)
Change in light transmission aggregometry of platelet rich plasma induced by collagen and arachidonic acid
Using a Helena Platelet Aggregation Chromogenic Kinetics System-4 (PACKS-4) light transmission aggregometer
Measured: At 2 weeks supplementation
Change in plasma levels of von Willebrand factor (vWF), soluble ICAM (s-ICAM) and soluble P-selectin (sP-selectin) as markers of endothelial activation
Using enzyme-linked immunoabsorbent assay (ELISA) in plasma
Measured: At 2 weeks supplementation
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted4 Nov 2010 (estimated)
- Study startNov 2010
- Primary completionNov 2012
- Study completionNov 2012
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (15)Papers the sponsor has linked to this study.
- Other trials for Cardiovascular 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
- Interventional
- Phase
- Phase N/A
- Primary purpose
- Prevention
- Allocation
- Randomised
- Intervention model
- Factorial
- Masking
- Quadruple blind
- Who is masked
- Participant, Care provider, Investigator, Outcomes assessor
- Enrolment
- 50 participants (actual)
Sponsor and investigators
- Lead sponsor
- University of Aberdeen
- Sponsor type
- University, hospital or other
- Responsible party
- Sponsor
- Investigators
- Baukje De Roos, PhD, Principal investigator, Univeristy of Aberdeen
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT01234636
- Sponsor's protocol ID
- RINH_1000
- Acronym
- CLASS
- Status last verified
- Nov 2015
- First submitted
- 2 Nov 2010
- Last updated
- 13 Nov 2015
- Results posted
- No
- Data monitoring committee
- No
Publications
Benito P, Nelson GJ, Kelley DS, Bartolini G, Schmidt PC, Simon V. The effect of conjugated linoleic acid on platelet function, platelet fatty acid composition, and blood coagulation in humans. Lipids. 2001 Mar;36(3):221-7. doi: 10.1007/s11745-001-0711-y.
PubMed 11337976Bhattacharya A, Banu J, Rahman M, Causey J, Fernandes G. Biological effects of conjugated linoleic acids in health and disease. J Nutr Biochem. 2006 Dec;17(12):789-810. doi: 10.1016/j.jnutbio.2006.02.009. Epub 2006 May 2.
PubMed 16650752Malpuech-Brugere C, Verboeket-van de Venne WP, Mensink RP, Arnal MA, Morio B, Brandolini M, Saebo A, Lassel TS, Chardigny JM, Sebedio JL, Beaufrere B. Effects of two conjugated linoleic Acid isomers on body fat mass in overweight humans. Obes Res. 2004 Apr;12(4):591-8. doi: 10.1038/oby.2004.68.
PubMed 15090626Zhila VV, Shodmonova ZR, Rublevskii VP, Chernenko PS. [High resection of the left testicular vein and ligation of the internal iliac artery using a retroperitoneoscope]. Klin Khir (1962). 1991;(5):49-51. Russian.
PubMed 1875623Moloney F, Yeow TP, Mullen A, Nolan JJ, Roche HM. Conjugated linoleic acid supplementation, insulin sensitivity, and lipoprotein metabolism in patients with type 2 diabetes mellitus. Am J Clin Nutr. 2004 Oct;80(4):887-95. doi: 10.1093/ajcn/80.4.887.
PubMed 15447895Brewerton TD, Murphy DL, Lesem MD, Brandt HA, Jimerson DC. Headache responses following m-chlorophenylpiperazine in bulimics and controls. Headache. 1992 May;32(5):217-22. doi: 10.1111/j.1526-4610.1992.hed3205217.x.
PubMed 1628957Noone EJ, Roche HM, Nugent AP, Gibney MJ. The effect of dietary supplementation using isomeric blends of conjugated linoleic acid on lipid metabolism in healthy human subjects. Br J Nutr. 2002 Sep;88(3):243-51. doi: 10.1079/BJN2002615.
PubMed 12207834Riserus U, Vessby B, Arnlov J, Basu S. Effects of cis-9,trans-11 conjugated linoleic acid supplementation on insulin sensitivity, lipid peroxidation, and proinflammatory markers in obese men. Am J Clin Nutr. 2004 Aug;80(2):279-83. doi: 10.1093/ajcn/80.2.279.
PubMed 15277146Riserus U, Vessby B, Arner P, Zethelius B. Supplementation with trans10cis12-conjugated linoleic acid induces hyperproinsulinaemia in obese men: close association with impaired insulin sensitivity. Diabetologia. 2004 Jun;47(6):1016-9. doi: 10.1007/s00125-004-1421-8. Epub 2004 May 28.
PubMed 15168020Riserus U, Basu S, Jovinge S, Fredrikson GN, Arnlov J, Vessby B. Supplementation with conjugated linoleic acid causes isomer-dependent oxidative stress and elevated C-reactive protein: a potential link to fatty acid-induced insulin resistance. Circulation. 2002 Oct 8;106(15):1925-9. doi: 10.1161/01.cir.0000033589.15413.48.
PubMed 12370214Riserus U, Arner P, Brismar K, Vessby B. Treatment with dietary trans10cis12 conjugated linoleic acid causes isomer-specific insulin resistance in obese men with the metabolic syndrome. Diabetes Care. 2002 Sep;25(9):1516-21. doi: 10.2337/diacare.25.9.1516.
PubMed 12196420Tholstrup T, Raff M, Straarup EM, Lund P, Basu S, Bruun JM. An oil mixture with trans-10, cis-12 conjugated linoleic acid increases markers of inflammation and in vivo lipid peroxidation compared with cis-9, trans-11 conjugated linoleic acid in postmenopausal women. J Nutr. 2008 Aug;138(8):1445-51. doi: 10.1093/jn/138.8.1445.
PubMed 18641189Tricon S, Burdge GC, Kew S, Banerjee T, Russell JJ, Jones EL, Grimble RF, Williams CM, Yaqoob P, Calder PC. Opposing effects of cis-9,trans-11 and trans-10,cis-12 conjugated linoleic acid on blood lipids in healthy humans. Am J Clin Nutr. 2004 Sep;80(3):614-20. doi: 10.1093/ajcn/80.3.614.
PubMed 15321800Truitt A, McNeill G, Vanderhoek JY. Antiplatelet effects of conjugated linoleic acid isomers. Biochim Biophys Acta. 1999 May 18;1438(2):239-46. doi: 10.1016/s1388-1981(99)00055-4.
PubMed 10320806Bachmair EM, Wood SG, Keizer HG, Horgan GW, Ford I, de Roos B. Supplementation with a 9c,11t-rich conjugated linoleic acid blend shows no clear inhibitory effects on platelet function in healthy subjects at low and moderate cardiovascular risk: a randomized controlled trial. Mol Nutr Food Res. 2015 Apr;59(4):741-50. doi: 10.1002/mnfr.201400495. Epub 2015 Feb 23.
PubMed 25641922
Study at a glance
From the registry record, last updated by the sponsor on 13 Nov 2015. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Effects of cis9,trans11 Conjugated Linoleic Acid on Platelet Function, Markers of Haemostasis and Inflammation on Humans
- ClinicalTrials.gov ID
- NCT01234636
- Acronym / sponsor ID
- CLASS / RINH_1000
- Conditions
- Cardiovascular Disease
- Keywords
- Platelets, Platelet aggregation, Platelet activation, Platelet function, Light transmission aggregometry, Flow cytometry, Platelet function analyzer-100 (PFA-100), Linoleic acid, conjugated
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 50 participants (actual)
- Lead sponsor
- University of AberdeenUniversity, hospital or other
- Study start
- Nov 2010
- Primary completion
- Nov 2012 (actual)
- Study completion
- Nov 2012 (actual)
- First posted
- 4 Nov 2010 (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.
Cardiovascular disease is a major cause of mortality worldwide resulting in one out of three global deaths. One of the main characteristics of cardiovascular disease is impaired blood flow and increased formation of clots. Platelets are clot-forming cells responsible for prevention of bleeding. However, in disease state they may be overly activated and tend to stick to each other, promoting blood clots and blockage of vessels.
Conjugated linoleic acids (CLA) are unique fatty acids present in dairy food products and beef which would help to prevent platelets from clotting and thus help to prevent cardiovascular disease. However, the mechanisms by which those fatty acids affect platelet function are not yet fully understood. We designed a human intervention study assessing the mechanisms by which CLA beneficially affect platelet function and markers of haemostasis and inflammation in humans.
Detailed description
Despite being trans fatty acids, dietary conjugated linoleic acids( CLA) have been associated with decreased atherogenesis, beneficial effects on insulin sensitivity , glucose and lipid profile and body composition in animal studies.Todate only few studies have studied the effects of the two individual CLA isomers on body composition , lipoprotein metabolism immune function , inflammation , insulin sensitivity and oxidative stress in humans.
A previous study revealed that both cis9,trans11 and trans10,cis12 CLA, as well as CLA mix, significantly decreased agonist-induced platelet aggregation and TxB2 production ex vivo compared with linoleic acid. No effect on agonist-induced platelet aggregation or other blood clotting parameters in healthy female volunteers was observed upon supplementation with 3.9 g/d CLA, compared with sunflower oil, but this may have been due to the low number of subjects participating in this study.
Indeed, supplementation with 13.0 g/day of CLA mix - 50:50 blend, compared with placebo oil, significantly decreased fibrinogen levels in type 2 diabetes patients, and fibrinogen and plasminogen activator inhibitor-1 levels were significantly lower upon intervention with CLA milk (4.7 g/d cis9,trans11 CLA and 0.4 g/d trans10,cis12 CLA), compared with CLA mix (2.3 g/d cis9,trans11 CLA and 2.2 g/d trans10,cis12 CLA), and lower compared with olive oil, in postmenopausal women.Thus overall evidence indicates that especially the cis9,trans11 CLA isomer may prevent platelet activation and aggregation, and possibly display anticoagulant properties. However, so far this has not been assessed in detail.
In this study we assess effects of supplementation of cis9,trans11 CLA-rich oil on platelet function by measuring not only platelet aggregation but also in vitro coagulation and platelet activation in healthy overweight humans. In addition, we examine the effects of CLA supplementation on plasma and cellular marker of inflammation and oxidative stress.
Study design
- Primary purpose
- Prevention
- Allocation
- Randomised
- Intervention model
- Factorial
- Masking
- Quadruple blind (participant, care provider, investigator, outcomes assessor)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| cis9,trans 11 CLA oil | Active comparator | Dietary Supplement: Placebo oil50 volunteers on cross over design , receiving 4g/day of cis9,trans11 CLA |
| Placebo oil | Placebo comparator | Dietary Supplement: Placebo oil50 volunteers cross over design, placebo oil 4g/day |
Who may qualify
- Ages
- 30 to 74 years
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (16 listed)
- blood pressure below 160/90 mmHg;
- fasting plasma glucose < 7 mmol/L;
- total cholesterol < 8 mmol/L,with cholesterol/HDL ratio < 6 and/or ASSIGN score < 20%)
- platelet count > 170x109/L
- haematocrit above 40 % for males and above 35 % for females
Key exclusion criteria (0 listed)
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 |
|---|---|---|
| Placebo oilPlacebo oil of 4g/day | Dietary supplement | Placebo oil, cis9,trans 11 CLA oil |
Primary outcome
Change of expression of P-selectin and fibrinogen receptor activation on platelets by flow cytometry
Time frame: At 2 weeks
Using fluorescently-conjugated monoclonal antibodies and whole blood flow cytometry after ex vivo stimulation with adenosine diphosphate (ADP), thrombin receptor-activating peptide (TRAP) P-selectin expression as early marker of platelet activation Activated fibrinogen receptor as late marker of platelet activation
Change of in vitro bleeding time using the Platelet Function Analyzer (PFA-100)
Time frame: At 2 weeks supplementation
Using collagen-epinephrine coated cartridges Using collagen-adenosine diphosphate coated cartridges
Change of coagulation marker assessed as fibrinogen levels in plasma
Time frame: At 2 weeks supplementation
Using semi-automated coagulometer using fibrinogen assay according to Clauss method
2 secondary outcomes
Change in light transmission aggregometry of platelet rich plasma induced by collagen and arachidonic acid
Time frame: At 2 weeks supplementation
Change in plasma levels of von Willebrand factor (vWF), soluble ICAM (s-ICAM) and soluble P-selectin (sP-selectin) as markers of endothelial activation
Time frame: At 2 weeks supplementation
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 13 Nov 2015.
- Background: PubMed 11337976Benito P, Nelson GJ, Kelley DS, Bartolini G, Schmidt PC, Simon V. The effect of conjugated linoleic acid on platelet function, platelet fatty acid composition, and blood coagulation in humans. Lipids. 2001 Mar;36(3):221-7. doi: 10.1007/s11745-001-0711-y.
- Background: PubMed 16650752Bhattacharya A, Banu J, Rahman M, Causey J, Fernandes G. Biological effects of conjugated linoleic acids in health and disease. J Nutr Biochem. 2006 Dec;17(12):789-810. doi: 10.1016/j.jnutbio.2006.02.009. Epub 2006 May 2.
- Background: PubMed 15090626Malpuech-Brugere C, Verboeket-van de Venne WP, Mensink RP, Arnal MA, Morio B, Brandolini M, Saebo A, Lassel TS, Chardigny JM, Sebedio JL, Beaufrere B. Effects of two conjugated linoleic Acid isomers on body fat mass in overweight humans. Obes Res. 2004 Apr;12(4):591-8. doi: 10.1038/oby.2004.68.
- Background: PubMed 1875623Zhila VV, Shodmonova ZR, Rublevskii VP, Chernenko PS. [High resection of the left testicular vein and ligation of the internal iliac artery using a retroperitoneoscope]. Klin Khir (1962). 1991;(5):49-51. Russian.
- Background: PubMed 15447895Moloney F, Yeow TP, Mullen A, Nolan JJ, Roche HM. Conjugated linoleic acid supplementation, insulin sensitivity, and lipoprotein metabolism in patients with type 2 diabetes mellitus. Am J Clin Nutr. 2004 Oct;80(4):887-95. doi: 10.1093/ajcn/80.4.887.
- Background: PubMed 1628957Brewerton TD, Murphy DL, Lesem MD, Brandt HA, Jimerson DC. Headache responses following m-chlorophenylpiperazine in bulimics and controls. Headache. 1992 May;32(5):217-22. doi: 10.1111/j.1526-4610.1992.hed3205217.x.
- Background: PubMed 12207834Noone EJ, Roche HM, Nugent AP, Gibney MJ. The effect of dietary supplementation using isomeric blends of conjugated linoleic acid on lipid metabolism in healthy human subjects. Br J Nutr. 2002 Sep;88(3):243-51. doi: 10.1079/BJN2002615.
- Background: PubMed 15277146Riserus U, Vessby B, Arnlov J, Basu S. Effects of cis-9,trans-11 conjugated linoleic acid supplementation on insulin sensitivity, lipid peroxidation, and proinflammatory markers in obese men. Am J Clin Nutr. 2004 Aug;80(2):279-83. doi: 10.1093/ajcn/80.2.279.
- Background: PubMed 15168020Riserus U, Vessby B, Arner P, Zethelius B. Supplementation with trans10cis12-conjugated linoleic acid induces hyperproinsulinaemia in obese men: close association with impaired insulin sensitivity. Diabetologia. 2004 Jun;47(6):1016-9. doi: 10.1007/s00125-004-1421-8. Epub 2004 May 28.
- Background: PubMed 12370214Riserus U, Basu S, Jovinge S, Fredrikson GN, Arnlov J, Vessby B. Supplementation with conjugated linoleic acid causes isomer-dependent oxidative stress and elevated C-reactive protein: a potential link to fatty acid-induced insulin resistance. Circulation. 2002 Oct 8;106(15):1925-9. doi: 10.1161/01.cir.0000033589.15413.48.
- Background: PubMed 12196420Riserus U, Arner P, Brismar K, Vessby B. Treatment with dietary trans10cis12 conjugated linoleic acid causes isomer-specific insulin resistance in obese men with the metabolic syndrome. Diabetes Care. 2002 Sep;25(9):1516-21. doi: 10.2337/diacare.25.9.1516.
- Background: PubMed 18641189Tholstrup T, Raff M, Straarup EM, Lund P, Basu S, Bruun JM. An oil mixture with trans-10, cis-12 conjugated linoleic acid increases markers of inflammation and in vivo lipid peroxidation compared with cis-9, trans-11 conjugated linoleic acid in postmenopausal women. J Nutr. 2008 Aug;138(8):1445-51. doi: 10.1093/jn/138.8.1445.
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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.
Baukje De Roos, PhD principal investigator
Univeristy of Aberdeen
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study of Cardiovascular Disease, run by University of Aberdeen 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 16 inclusion and 0 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 13 Nov 2015. 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. Some participants in this study may receive a placebo. 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 of expression of P-selectin and fibrinogen receptor activation on platelets by flow cytometry (time frame: At 2 weeks). The study lists 3 primary outcomes in all. 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 NCT01234636, which also lists 15 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 13 Nov 2015.