ClinicalTrials.gg
CompletedNCT04978103Updated Feb 18, 2026

Effects of Gum Arabic on Metabolic Syndrome Parameters in Postmenopausal Women

A Phase 2 interventional study of Gum Arabic in Metabolic Syndrome in Postmenopausal Females, sponsored by University of Khartoum. Completed at 1 site in Sudan. Open to female participants aged 45 Years to 70 Years. Per ClinicalTrials.gov, last updated 2026-02-18.

Sponsored by University of Khartoum · Phase 2, Interventional, and Treatment

From the registry’s dates

  • Registered 1 year 7 months after the study started (first participant enrolled Dec 2019, registered Jul 2021).
Phase
Phase 2
Study type
Interventional
Enrollment
100
Allocation
Not applicable
Ages
45 Years to 70 Years
Sex
Female
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Study summary

Gum Arabic ingestion has been proved to decrease some of the inflammatory markers in some metabolic diseases that have an inflammatory background. Nevertheless, the mechanism/s by which it does so is uncertain. This study is targeting one of the postulated molecular mechanisms at genetic level that may help to understand how Gum Arabic exerts its effect .The effects of GA on Nuclear Factor Kappa Beta, P38 Mitogen Activated Protein (MAP) Kinase levels, and on the expression of inflammatory cytokines genes are going to be assessed in postmenopausal females with Metabolic Syndrome.

Read the detailed description

The Metabolic syndrome (MetS) is a collection of several interconnected biochemical, clinical, and metabolic factors that directly increase the risk of atherosclerotic cardiovascular disease and Diabetes Mellitus.

Hypertension, Dyslipidemia, insulin resistance, obesity, glucose intolerance, proinflammatory and prothrombotic states are the cornerstone features defining the syndrome. Glycerol, free fatty acids (FFA), tumor necrosis factor alpha (TNFα), interleukin 6 (IL6), interleukin 1(IL-1) and Interferon Gamma (INFγ) are some of the inflammatory substances (cytokines) that are released from different cells (monocytes and adipocytes) in MetS.

Gum Arabic is found as a mixture of sodium, calcium and potassium salts of branched polysaccharides. In the colon, GA is fermented by colonic bacteria into short chain fatty acids such as butyrate, which are partially absorbed into blood.

Butyrate treatment was found to inhibit expression of cytokine mRNAs in peripheral blood monocytes (PBMC) that are stimulated by bacterial lipopolysaccharide (LPS).

In unstimulated (PBMC), a transcription factor (Nuclear Factor kappa β (NF-κB)) controls gene expression of some inflammatory cytokines; Tumor Necrosis Factor Alpha (TNF- α), IL-1 and IL-6. NF-κB was detected mainly in the cytoplasm tightly bound to an Inhibitory protein (IκB).

When those cells are stimulated by bacterial lipopolysaccharide (LPS) or by adipokines, NFκB is activated and translocates to the nucleus to start gene expression of the inflammatory cytokines. Moreover; stimulation causes degradation of IκB which releases NFκB and allows its translocation to the nucleus.

This nuclear translocation of NFκB was found to be inhibited by butyrate (a byproduct of Gum Arabic fermentation ) providing evidence that butyrate mediated reduction of proinflammatory cytokines was achieved by reducing NFκB activation.

Consequently; the postulated mechanisms by which butyrate may regulate gene expression are through inhibition of NFκB activation and IκBα degradation.

NFκB and the inflammatory cytokines: Target for therapy in inflammatory diseases, are they?

As NFκB is involved in transcriptional regulation of many cytokines genes that contributes to immune and inflammatory responses, it may be a good target for therapy also. At present, treatment of inflammatory diseases depends greatly on aminosalicylates, corticosteroids, and immune-suppressants that decrease cytokines level especially TNF.

The anti-inflammatory and immune-modulatory properties of gum Arabic, through butyrate, described previously may offer an interesting alternative therapeutic approach for inflammatory conditions.

02

Conditions studied

  • Metabolic Syndrome in Postmenopausal Females

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Keywords

  • Gum Arabic
  • Inflammatory markers
  • Metabolic Syndrome
03

In context

Metabolic Syndrome

2,116 studies on the registry are indexed under Metabolic Syndrome; 347 are open to participants now.

This study's enrollment of 100 is above the median of 60 across 1,572 interventional studies indexed under Metabolic Syndrome.

Browse Metabolic Syndrome studies →

Lead sponsor

University of Khartoum is the lead sponsor of 14 studies on the registry; none are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
45 Years to 70 Years
Sexes eligible
Female
Accepts healthy volunteers
No

Eligibility criteria

Inclusion Criteria:

  • Inclusion criteria Females Menopause Metabolic syndrome based on Adult panel II criteria Signed/verbal consent to participate

Exclusion Criteria:

  • Exclusion criteria

    1. Patients with mental or physical disability
    2. Use of or any other drug that affects body weight
    3. History of Gum Arabic (GA) allergy
    4. Chronicrenal or liver disease
    5. Chronocinflammatory diseases
    6. History of CVA or MI Participants will be asked to maintain their habitually daily diet and level of activity during the period of the study and to continue any previously prescribed medication.
Terms in these criteria, in plain language(1)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Corticosteroids (steroids)

Anti-inflammatory medicines such as prednisone, prednisolone and dexamethasone — not the anabolic steroids used for muscle.

Studies differ in what they allow: check which steroid medicines, routes (tablets, injections, creams, inhalers, eye drops) and doses this study accepts.

05

Study design

Phase
Phase 2
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
100 participants (actual)

Study arms

  • Experimental
    Single Arm

    Hundred postmenopausal women were enrolled and received therapeutic dose of Gum Arabic (0.5 gm/kg/day) and followed for 12 weeks then the intended outcomes will be compared before and after completion of the study

    Drug: Gum Arabic

Interventions

  • A dietary supplement (Powdered exudates of Acacia Senegal (Gum Arabic E-414))

    Also known as: Acacia Senegal

06

What researchers measure

Primary outcomes

  1. Nuclear Factor Kappa Beta concentration in nanogram/dl

    Nuclear regulatory protein

    Time frame: 12 weeks

  2. P38 Mitogen activated protein kinase in nanogram/dl

    Transcription regulatory protein

    Time frame: 12 weeks

  3. Inhibitory Kappa Beta protein in nanogram/dl

    inhibitory protein

    Time frame: 12 weeks

  4. Tumor necrosis factor, interferon gamma and interleukin-6 in nanogram/dl

    Proinflammatory cytokines

    Time frame: 12 weeks

  5. Plasminogen activated protein inhibitor1 in picogram/dl

    Protein Inhibitor

    Time frame: 12 weeks

  6. Fasting Insulin in nanogram/dl

    Metabolic hormone

    Time frame: 12 weeks

  7. Insulin resistance by HOMA index

    Measuring cells sensitivity to insulin

    Time frame: 12 weeks

Secondary outcomes

  1. Fasting Blood Sugar in mg/dl

    Biochemical serological markers

    Time frame: 12 weeks

  2. Lipid profile in mg/dl

    Serological markers

    Time frame: 12 weeks

Other outcomes

  1. waist circumference in cm

    Anthropometric measurement

    Time frame: 12 weeks

07

Study locations

1 site
  • University of Khartoum
    Khartoum, 11111, Sudan
08

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Ran from Dec 2019 to primary completion in Jan 2021, 13 months.

Of 28 non-industry phase 2 interventional studies under Metabolic Syndrome, half reached primary completion within 30 months of starting (the median), counting those still running; a quarter within 26 and three quarters within 62. This study's 13 months is below that.

Counting every sponsor, half of 31 studies reached it within 29 months; a quarter within 18 and three quarters within 58.

How these figures are worked out, and which studies are left out of them.

Registered
Jul 10, 2021
First posted
Jul 27, 2021
StartActual
Dec 4, 2019
Primary completionActual
Jan 10, 2021
CompletionActual
Dec 20, 2022
Last update
Feb 18, 2026
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Feb 18, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT04978103
Lead sponsor
University of Khartoum
Collaborators
Ministry of Higher Education and Scientific Research, Republic of Sudan
Responsible party
Fatima Elhaj (Principal Investigator, University of Khartoum) — Principal investigator
First posted
Jul 27, 2021
Start date
Dec 4, 2019
Primary completion
Jan 10, 2021
Completion
Dec 20, 2022
Last update
Feb 18, 2026

Study contacts

Fatima Elhaj, PhD
principal investigator · lecturer in physiology department University of Khartoum
Shaza Elawad, MSc
principal investigator · lecturer in physiology department University of Khartoum

Oversight

Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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