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Evaluation of a Nigella Sativa Extract (10% Thymoquinone, Nisatol®) in Perimenopausal Women With Metabolic Syndrome

Evaluation of the Efficacy of a Nigella Sativa Extract Standardized to 10% Thymoquinone (Nisatol®) in Improving Metabolic and Blood Pressure Parameters and Quality of Life in Perimenopausal Women With Metabolic Syndrome: A Prospective, Multicenter, Randomized Controlled Clinical Trial

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07013058
Enrollment
50
Registered
2025-06-10
Start date
2025-06-15
Completion date
2025-12-19
Last updated
2025-12-30

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Elevated Blood Pressure, Metabolic Syndrome

Brief summary

A prospective, multicenter, randomized controlled study evaluating the efficacy and safety of a Nigella sativa extract standardized to 10% thymoquinone (Nisatol®) in perimenopausal women with metabolic syndrome. The study will assess changes in metabolic and blood pressure parameters, as well as improvements in menopausal symptoms and quality of life.

Detailed description

This prospective, multicenter, randomized controlled clinical trial aims to evaluate the efficacy and safety of a food supplement containing Nigella sativa oil standardized to 10% thymoquinone (Nisatol®) in perimenopausal women diagnosed with metabolic syndrome and experiencing climacteric symptoms. Fifty participants will be randomly assigned to either the intervention group (receiving 2 softgel capsules of Nisatol® daily for 4 months) or a control group following a Mediterranean diet. The primary endpoint is the change from baseline in metabolic and blood pressure parameters, including fasting glucose, lipid profile, cortisolemia, uricemia, and systolic/diastolic blood pressure. The study will also assess quality of life using the Greene Climacteric Scale and monitor treatment safety and tolerability. The study addresses the need for non-hormonal, evidence-based interventions for managing metabolic and menopausal symptoms in midlife women.

Interventions

BEHAVIORALMediterranean Diet

Participants will follow a Mediterranean diet for 4 months under dietary guidance, without receiving any Nigella sativa supplementation.

DIETARY_SUPPLEMENTNigella sativa extract (Nisatol®)

Participants will take 2 softgel capsules daily of Nigella sativa oil standardized to 10% thymoquinone (Nisatol®), one capsule with lunch and one with dinner, for 4 months.

Sponsors

University of Urbino Carlo Bo
CollaboratorOTHER
Liaquat University of Medical & Health Sciences
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Intervention model description

Participants will be randomized in a 1:1 ratio to receive either Nisatol® (Nigella sativa extract) or follow a Mediterranean diet for 4 months.

Eligibility

Sex/Gender
FEMALE
Age
18 Years to 40 Years
Healthy volunteers
No

Inclusion criteria

* Perimenopausal women aged 40-60 years * Presence of climacteric (menopausal) symptoms * Diagnosis of metabolic syndrome, defined as alteration of at least 3 of the following: * Systolic blood pressure ≥130 mmHg and/or diastolic ≥85 mmHg * HDL cholesterol \<50 mg/dL * Triglycerides ≥150 mg/dL * Fasting blood glucose ≥100 mg/dL * Uricemia \>7 mg/dL

Exclusion criteria

* Use of hormone replacement therapy (HRT) * Presence of neoplastic diseases * Presence of liver disease, kidney failure, or diabetes mellitus * Drug or alcohol abuse * Known hypersensitivity to Nigella sativa or any formulation component

Design outcomes

Primary

MeasureTime frameDescription
Change in Climacteric SymptomsBaseline to 4 monthsEvaluation using the Greene Climacteric Scale, a 21-item self-reported questionnaire where each item is rated from 0 (not at all) to 3 (extremely), with a total score range from 0 to 63. Higher scores indicate more severe symptoms. Changes will be measured from baseline to 4 months.
Change in Serum Cortisol levels, (μg/dL)Baseline to 4 monthsEvaluation of Cortisol levels from baseline to 4 months.
Change in Serum Uric Acid levels, (mg/dL)Baseline to 4 monthsEvaluation of Uric acid levels from baseline to 4 months.
Change in Fasting Blood GlucoseBaseline to 4 monthsEvaluation of the change in fasting blood glucose from baseline to 4 months.
Change in Total Cholesterol levels, (mg/dL)Baseline to 4 monthsEvaluation of total cholesterol from baseline to 4 months.
Change in low-density lipoprotein cholesterol levels, (mg/dL)Baseline to 4 monthsEvaluation of low-density lipoprotein cholesterol from baseline to 4 months.
Change in high-density lipoprotein cholesterol levels, (mg/dL)Baseline to 4 monthsEvaluation of high-density lipoprotein cholesterol from baseline to 4 months.
Change in Triglycerides levels, (mg/dL)Baseline to 4 monthsEvaluation of triglyceride levels from baseline to 4 months.
Change in Blood PressureBaseline to 4 monthsEvaluation of the change in systolic and diastolic blood pressure from baseline to 4 months.
Change in serum Alanine Aminotransferase Enzyme levels, (U/L)Baseline to 4 monthsEvaluation of Alanine Aminotransferase Enzyme levels from baseline to 4 months.
Change in serum Aspartate Aminotransferase Enzyme levels, (U/L)Baseline to 4 monthsEvaluation of Aspartate Aminotransferase Enzyme levels from baseline to 4 months.
Change in serum Change in Serum Creatinine levels, (mg/dL or µmol/L)Baseline to 4 monthsEvaluation of serum creatinine from baseline to 4 months.
Change in serum Creatine Phosphokinase Enzymes levels, (U/L)Baseline to 4 monthsEvaluation of Creatine Phosphokinase Enzymes levels from baseline to 4 months.

Secondary

MeasureTime frameDescription
Safety and TolerabilityThroughout study duration (4 months)Evaluation of adverse events, tolerability score (0-10), and adherence rate (%) over the 4-month treatment period.

Countries

Italy

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026