NW Roselle in Grade 1 Essential Hypertension: Phase III Clinical Trial
Study Details
Study Description
Brief Summary
In this Phase III clinical trial, researchers evaluate the efficacy and safety of NW RoselleĀ®, a powdered medicinal product developed by Natural Wellness. NW Roselle combines extracts from Hibiscus Sabdariffa (HS) flowers and Olea europaea (OE) leaves. The trial aims to gather evidence on the efficacy and safety of NW Roselle as a potential treatment option for Grade 1 essential hypertension.
Condition or Disease | Intervention/Treatment | Phase |
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Phase 3 |
Detailed Description
Hypertension is a major risk factor for heart, brain, and kidney diseases, and is a leading cause of death and illness globally. Natural Wellness has developed NW RoselleĀ®, a powdered medicinal product that combines extracts from Hibiscus Sabdariffa (HS) flowers and Olea europaea (OE) leaves.
In this Phase III clinical trial, researchers are evaluating the efficacy and safety of NW Roselle, in the treatment of Grade 1 essential hypertension. Eligible participants who meet the criteria will be enrolled and randomized in a 1:1 ratio. They will be assigned to receive either NW Roselle or an active control, Captopril 25 mg twice daily.
Before the treatment begins, participants will provide informed consent and undergo assessments to collect information about their medical history, hypertension status, lifestyle factors, and demographics. Throughout the trial, the participant's vital signs, physical exams, and laboratory tests will be conducted to monitor their health and response to the treatment. Adherence to the assigned treatment will be monitored, and any potential adverse events or side effects will be tracked.
Study Design
Arms and Interventions
Arm | Intervention/Treatment |
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Experimental: Study Group (Arm 1) The patient will receive NW Roselle capsules 1000 mg and placebo tablets. Patients will take two capsules of NW Roselle and one placebo tablet orally BID on an empty stomach with plenty of water 15 minutes before meals or one hour after meals. A total dose of 2000 mg of NW Roselle will be administered per day. |
Drug: NW Roselle
NW Roselle is a powdered extract from the flowers of Hibiscus Sabdariffa (300mg) and the leaves of Olea europaea (200 mg).
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Active Comparator: Control Group (Arm 2) Captopril 25 mg tablets will be used. The patient will receive placebo capsules and Captopril 25 mg tablets. Patients will take two placebo capsules and one Captopril 25 mg tablet orally BID on an empty stomach with plenty of water 15 minutes before meals or one hour after meals. A total dose of 50 mg of Captopril will be administered per day. |
Drug: Captopril 25Mg Tab
Active Comparator
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Outcome Measures
Primary Outcome Measures
- The mean systolic blood pressure [Week 12]
The mean systolic blood pressure difference between the study arm and the control arm adjusted for baseline blood pressure.
- The mean diastolic blood pressure [Week 12]
The mean diastolic blood pressure difference between the study arm and the control arm adjusted for baseline blood pressure.
Secondary Outcome Measures
- Systolic Blood Pressure Paired Change [Week 12]
The mean changes in systolic blood pressure between baseline and week 12 within each arm.
- Diastolic Blood Pressure Paired Change [Week 12]
The mean changes in diastolic blood pressure between baseline and week 12 within each arm.
- The rate of achieving blood pressure levels of (Systolic < 140 and Diastolic < 90 mmHg) by week 12 [Week 12]
The proportion of patients in each treatment group who are able to achieve the target blood pressure levels of systolic blood pressure < 140 mmHg and diastolic blood pressure < 90 mmHg by week 12.
- The rate of achieving systolic blood pressure range (120-130 mmHg) by week 12 [Week 12]
The proportion of patients in each treatment group who are able to achieve the target systolic blood pressure range of 120-130 mmHg by week 12.
- The rate of achieving diastolic blood pressure range (70 - 80 mmHg) by week 12 [Week 12]
The proportion of patients in each treatment group who are able to achieve the target diastolic blood pressure control of 70-80 mmHg by week 12.
- Compliance Rate [12 weeks]
The mean medication compliance rate (%) will be calculated for each subject as: [(Total number of administered doses) / (Expected number of doses)] *100%.
- Adverse events rate [12 weeks]
2. The incidence of AEs reported by the patients, summarized by system organ class, severity, and relationship to study intervention, over the course of treatment.
Eligibility Criteria
Criteria
Inclusion Criteria:
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Diagnosed with grade 1 essential hypertension (Systolic Blood Pressure: 140-159 mmHg, and/or Diastolic Blood Pressure 90-99 mmHg) (Williams et al., 2018).
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Not currently taking any medication for hypertension.
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Able and willing to provide written informed consent.
Exclusion Criteria:
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Pregnant or lactating women.
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Patients with BMI > 45 Kg/m2 or BMI < 18 Kg/m2.
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Patients with a known history of secondary hypertension (e.g., hyperaldosteronism, pheochromocytoma, renal artery stenosis, Cushing syndrome).
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Renal impairment (Estimated Creatinine Clearance (Cr.Cl.) < 30 ml/min as measured by the Cockcroft-Gault formula).
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Known Severe hepatic impairment, biliary cirrhosis, or cholestasis.
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Patients with a history of arrhythmias, ischemic heart diseases, obstruction of the outflow tract of the left ventricle (e.g., hypertrophic obstructive cardiomyopathy, and high-grade aortic stenosis), congestive heart failure, valvular disease, myocardial infarction (MI), angina, myocardial revascularization, or cerebrovascular accident (CVA) within 6 months prior to study entry.
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Participation in other clinical studies within 30 days before screening.
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Known or suspected allergy or any contraindications to the trial products.
Contacts and Locations
Locations
No locations specified.Sponsors and Collaborators
- Natural Wellness Egypt
Investigators
None specified.Study Documents (Full-Text)
None provided.More Information
Publications
- Abdel-Rahman RF, Hessin AF, Abdelbaset M, Ogaly HA, Abd-Elsalam RM, Hassan SM. Antihypertensive Effects of Roselle-Olive Combination in L-NAME-Induced Hypertensive Rats. Oxid Med Cell Longev. 2017;2017:9460653. doi: 10.1155/2017/9460653. Epub 2017 Oct 22.
- Elkafrawy N, Younes K, Naguib A, Badr H, Kamal Zewain S, Kamel M, Raoof GFA, M El-Desoky A, Mohamed S. Antihypertensive efficacy and safety of a standardized herbal medicinal product of Hibiscus sabdariffa and Olea europaea extracts (NW Roselle): A phase-II, randomized, double-blind, captopril-controlled clinical trial. Phytother Res. 2020 Dec;34(12):3379-3387. doi: 10.1002/ptr.6792. Epub 2020 Jul 29.
- Kandzari DE, Mahfoud F, Weber MA, Townsend R, Parati G, Fisher NDL, Lobo MD, Bloch M, Bohm M, Sharp ASP, Schmieder RE, Azizi M, Schlaich MP, Papademetriou V, Kirtane AJ, Daemen J, Pathak A, Ukena C, Lurz P, Grassi G, Myers M, Finn AV, Morice MC, Mehran R, Juni P, Stone GW, Krucoff MW, Whelton PK, Tsioufis K, Cutlip DE, Spitzer E. Clinical Trial Design Principles and Outcomes Definitions for Device-Based Therapies for Hypertension: A Consensus Document From the Hypertension Academic Research Consortium. Circulation. 2022 Mar 15;145(11):847-863. doi: 10.1161/CIRCULATIONAHA.121.057687. Epub 2022 Mar 14.
- NCD Risk Factor Collaboration (NCD-RisC). Worldwide trends in hypertension prevalence and progress in treatment and control from 1990 to 2019: a pooled analysis of 1201 population-representative studies with 104 million participants. Lancet. 2021 Sep 11;398(10304):957-980. doi: 10.1016/S0140-6736(21)01330-1. Epub 2021 Aug 24. Erratum In: Lancet. 2022 Feb 5;399(10324):520.
- Williams B, Mancia G, Spiering W, Agabiti Rosei E, Azizi M, Burnier M, Clement DL, Coca A, de Simone G, Dominiczak A, Kahan T, Mahfoud F, Redon J, Ruilope L, Zanchetti A, Kerins M, Kjeldsen SE, Kreutz R, Laurent S, Lip GYH, McManus R, Narkiewicz K, Ruschitzka F, Schmieder RE, Shlyakhto E, Tsioufis C, Aboyans V, Desormais I; ESC Scientific Document Group. 2018 ESC/ESH Guidelines for the management of arterial hypertension. Eur Heart J. 2018 Sep 1;39(33):3021-3104. doi: 10.1093/eurheartj/ehy339. No abstract available. Erratum In: Eur Heart J. 2019 Feb 1;40(5):475.
- NW-ROSELLE-572023