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Type2 DiabetesNCT04616066

Date Fruit Effects in Type 2 Diabetes

A study testing Dates and Raisins in people with Type2 Diabetes, run by Royal College of Surgeons in Ireland - Medical University of Bahrain at 1 site in Bahrain.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

Dried dates (Phoenix dactylifera) have the second highest phytoestrogen content of any fruit, only secondary to dried apricots with 329ug of phytoestrogens per 100g. The date palm is one of oldest planted trees on the earth at around 2,000 years old. Read more about this study

Who is it for?
Ages 45 to 75 years
Conditions the study is for
Type2 Diabetes
What is being tested?
Dates and Raisins
Could I receive a placebo?
No, everyone receives an active treatment
How many people
79 participants
Where
1 siteBahrain
Study dates
10 Oct 2021to 30 May 2022
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 45 to 75 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • The diagnosis of type 2 diabetes will be based on the WHO guidelines. An HbA1C of 6.5% or greater, or 2 fasting plasma glucose readings of >7.0mmoll-1 or 2 random plasma glucose readings >11mmoll-1 in the absence of symptoms or concurrent illness or medication which might lead to hyperglycaemia (e.g. thiazide diuretics). Or one reading meets the diagnostic level with the presence of symptoms of polyuria, polydipsia, nocturia, fatigue or blurring of vision. The final diagnostic method of diagnosis type 2 diabetes is a positive oral glucose tolerance test (OGTT) using a 75g glucose load. If doubt exists on the diagnosis of diabetes an OGTT will be performed.
  • Patients will be on stable medication for their diabetes, hypertension, lipids and gout (if appropriate) for 3 months prior to entry into the study.
  • HbA1c 7.5 - 10%
  • Patients between the ages of 45-75 years at the start of the study.
  • Capable to give informed consent and complete the study.

Who cannot join

  • Patients with concurrent illness or any medication in the last 3 months.
  • Patients who are taking hormone replacement therapy.
  • Patients who are currently or have taken antibiotics in the last 3 months.
  • Currently enrolled in other clinical trials.
  • Hba1c at recruiting stage of more than 10%.
  • Patients with a BMI less than 20 and more than 40.
Show all 10Show fewer
  • Patients with known food allergies.
  • Patients on insulin.
  • Patients who are eating dates or raisins should be washed out for 4 weeks.
  • Pregnant or nursing, or plans to become pregnant in the next 3 months, or not using adequate contraceptive measures.

Trial locations and contacts

1 site in 1 country.

Bahrain1 site
  • Royal College of Surgeons in Ireland - Bahrain

    Manama

Other trials in Bahrain

About this study

Official title: Effect of Date Fruit Phytoestrogen on the Glycemic Control of Patients With Type 2 Diabetes: A Randomized Clinical Trial.

Dried dates (Phoenix dactylifera) have the second highest phytoestrogen content of any fruit, only secondary to dried apricots with 329ug of phytoestrogens per 100g. The date palm is one of oldest planted trees on the earth at around 2,000 years old. Dates are nutritionally rich and a good source of fiber and carbohydrates and their potential medicinal and nutritional effects have been suggested in a number of studies. Date sugars have also been shown to be phenol rich, potent antioxidant, and strong inhibitor of α -glycosidase that may also have benefit in diabetes. In addition, dates are rich in micronutrients that may also have benefit for diabetes and insulin resistance . Dates have a glycemic index of 50 and studies have shown that the consumption of differing varieties of dates do not significantly affect the acute glycemia in patients with type 2 diabetes.

The objective of this study is to investigate the effect of date phytoestrogens on HbA1C and fasting blood glucose in patients with type 2 diabetes in comparison to the same glycemic load of raisins that have low phytoestrogen content.

Read the detailed description

Production and consumption of soy foods within Western countries have increased dramatically in the last decade with the postulated health benefits including improvement in bone health, relief of menopausal symptoms and reduced risk of certain types of cancers due to the soy phytoestrogens. In addition, habitual intake of soy phytoestrogens has also been associated with a reduced risk of type 2 diabetes mellitus (T2DM) and cardiovascular disease (CVD), which is of particular relevance given the increasing global prevalence of diabetes. This is a particular problem here in the Middle East and North Africa (MENA) region, where diabetes is considered as a serious and increasing health problem. According to the International Diabetes Federation the prevalence of diabetes in the MENA region is over 23.3%; however worldwide there is an epidemic increase in type 2 diabetes with the WHO report that approximately 415 million people have diabetes worldwide, and that by 2030, diabetes will be the 7th leading cause of death.

Dried dates (Phoenix dactylifera) have the second highest phytoestrogen content of any fruit, only secondary to dried apricots with 329ug of phytoestrogens per 100g. The date palm is one of oldest planted trees on the earth at around 2,000 years old. Dates are nutritionally rich and a good source of fiber and carbohydrates and their potential medicinal and nutritional effects have been suggested in a number of studies. Date sugars have also been shown to be phenol rich, potent antioxidant, and strong inhibitor of α -glycosidase that may also have benefit in diabetes. In addition, dates are rich in micronutrients that may also have benefit for diabetes and insulin resistance. Dates have a glycemic index of 50 and studies have shown that the consumption of differing varieties of dates do not significantly affect the acute glycemia in patients with type 2 diabetes.

There has not been a medium term study of the effect of date fruit in diabetes; therefore, this study will determine if the consumption Khalas dates (3 dates =30g undried dates) twice daily (phytoestrogen content 329ug/100g), in accord with that advised in the Holy Qur'an, will improve the glycemic control in men with type 2 diabetes, in comparison with the equivalent glycemic load of raisins (30g twice daily, phytoestrogen content of 9.6ug/100g). Each intervention will be taken as a snack mid-morning and mid-afternoon.

Conditions
Type2 Diabetes
Being tested
Dates, Raisins
Keywords
Type2 diabetes, Dates, Phytoestrogen

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • DatesOther

    The effect of date phytoestrogens on HbA1C and fasting blood glucose in patients with type 2 diabetes

  • RaisinsOther

    The effect of raisins phytoestrogens on HbA1C and fasting blood glucose in patients with type 2 diabetes

Study groups in NCT04616066
Study groupRoleWhat they receive
Dates ArmExperimentalConsumption of Khalas dates (3 dates =30g undried dates) twice daily (phytoestrogen content 329ug/100g)
Receives: Other: Dates
Raisins ArmExperimentalConsumption of Raisins (30g twice daily, phytoestrogen content of 9.6ug/100g)
Receives: Other: Raisins

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. The effect of phytoestrogens on HbA1C and fasting blood glucose in patients with type 2 diabetes

    Measuring the levels of phytoestrogen and evaluate if it has reduced the average blood sugar levels over a period of 3 months.

    Measured: 90 days

Secondary outcomes (2)
  1. Determine whether date phytoestrogens affect cardiovascular risk

    Determine whether the level of phytoestrogens has lowered risks of cardiovascular disease by measuring the fasting lipids, C reactive protein and blood pressure.

    Measured: 90 days

  2. Determine whether date phytoestrogens affect insulin resistance

    Homeostatic model assessment (HOMA) is a method for assessing β-cell function and insulin resistance (IR) from basal (fasting) glucose and insulin or C-peptide concentrations.

    Measured: 90 days

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted4 Nov 2020
  2. Study start10 Oct 2021
  3. Primary completion30 Apr 2022
  4. Study completion30 May 2022

Resources

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
Randomised
Intervention model
Parallel groups
Model description
This is a parallel, prospective, interventional and randomized trial involving 80 patients with type 2 diabetes. They will be randomised to either 60g of dates or 60g of raisins (amount split and given as a mid-morning and mid-afternoon snack) for 3 months.
Masking
None (open label)
Enrolment
79 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04616066
Sponsor's protocol ID
89 / 25-Oct-2020
Status last verified
Oct 2022
First submitted
25 Oct 2020
Last updated
4 Oct 2022
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
Yes: Monitoring, audits, and REC review will be permitted and provide direct access to source data and documents. The Lead PI and the researchers assigned by him will have access to the stored data/specimens. Only the Lead PI and the researchers assigned working on this study will be eligible to obtain the data/specimens from the participants during data collection.

Publications

  • Xiao CW. Health effects of soy protein and isoflavones in humans. J Nutr. 2008 Jun;138(6):1244S-9S. doi: 10.1093/jn/138.6.1244S.

    PubMed 18492864
  • Jayagopal V, Albertazzi P, Kilpatrick ES, Howarth EM, Jennings PE, Hepburn DA, Atkin SL. Beneficial effects of soy phytoestrogen intake in postmenopausal women with type 2 diabetes. Diabetes Care. 2002 Oct;25(10):1709-14. doi: 10.2337/diacare.25.10.1709.

    PubMed 12351466
  • Xu SZ, Zeng B, Daskoulidou N, Chen GL, Atkin SL, Lukhele B. Activation of TRPC cationic channels by mercurial compounds confers the cytotoxicity of mercury exposure. Toxicol Sci. 2012 Jan;125(1):56-68. doi: 10.1093/toxsci/kfr268. Epub 2011 Oct 9.

    PubMed 21984481
  • Thompson LU, Boucher BA, Liu Z, Cotterchio M, Kreiger N. Phytoestrogen content of foods consumed in Canada, including isoflavones, lignans, and coumestan. Nutr Cancer. 2006;54(2):184-201. doi: 10.1207/s15327914nc5402_5.

    PubMed 16898863
  • Vayalil PK. Date fruits (Phoenix dactylifera Linn): an emerging medicinal food. Crit Rev Food Sci Nutr. 2012;52(3):249-71. doi: 10.1080/10408398.2010.499824.

    PubMed 22214443
  • Hamad I, AbdElgawad H, Al Jaouni S, Zinta G, Asard H, Hassan S, Hegab M, Hagagy N, Selim S. Metabolic Analysis of Various Date Palm Fruit (Phoenix dactylifera L.) Cultivars from Saudi Arabia to Assess Their Nutritional Quality. Molecules. 2015 Jul 27;20(8):13620-41. doi: 10.3390/molecules200813620.

    PubMed 26225946
  • Alkaabi JM, Al-Dabbagh B, Ahmad S, Saadi HF, Gariballa S, Ghazali MA. Glycemic indices of five varieties of dates in healthy and diabetic subjects. Nutr J. 2011 May 28;10:59. doi: 10.1186/1475-2891-10-59.

    PubMed 21619670
  • Alkaabi J, Al-Dabbagh B, Saadi H, Gariballa S, Yasin J. Effect of traditional Arabic coffee consumption on the glycemic index of Khalas dates tested in healthy and diabetic subjects. Asia Pac J Clin Nutr. 2013;22(4):565-73. doi: 10.6133/apjcn.2013.22.4.09.

    PubMed 24231017
  • Miller CJ, Dunn EV, Hashim IB. The glycaemic index of dates and date/yoghurt mixed meals. Are dates 'the candy that grows on trees'? Eur J Clin Nutr. 2003 Mar;57(3):427-30. doi: 10.1038/sj.ejcn.1601565.

    PubMed 12627179
  • Senn SJ. Covariate imbalance and random allocation in clinical trials. Stat Med. 1989 Apr;8(4):467-75. doi: 10.1002/sim.4780080410.

    PubMed 2727470
  • Senn S. Testing for baseline balance in clinical trials. Stat Med. 1994 Sep 15;13(17):1715-26. doi: 10.1002/sim.4780131703.

    PubMed 7997705
  • Knol MJ, Groenwold RH, Grobbee DE. P-values in baseline tables of randomised controlled trials are inappropriate but still common in high impact journals. Eur J Prev Cardiol. 2012 Apr;19(2):231-2. doi: 10.1177/1741826711421688. No abstract available.

    PubMed 22512015

Questions about this trial

What is this clinical trial studying?

A study testing Dates and Raisins in people with Type2 Diabetes, run by Royal College of Surgeons in Ireland - Medical University of Bahrain at 1 site in Bahrain.

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 10 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 4 Oct 2022. 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 Bahrain. 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?

The effect of phytoestrogens on HbA1C and fasting blood glucose in patients with type 2 diabetes (time frame: 90 days). 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 NCT04616066, 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 4 Oct 2022.

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