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Clinical Trial Details — Status: Recruiting

Administrative data

NCT number NCT06019598
Other study ID # licorice2023_additional
Secondary ID
Status Recruiting
Phase N/A
First received
Last updated
Start date September 10, 2023
Est. completion date December 31, 2024

Study information

Verified date March 2024
Source Linkoeping University
Contact Peder af Geijerstam, MD
Phone +460739597426
Email peder.af.geijerstam@liu.se
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

Out-of-office blood pressure is more strongly associated with cardiovascular risk than office blood pressure. Licorice is known to raise blood pressure, but no previous studies have measured the effects on home blood pressure. The aim of this study is to analyze the association between licorice intake and home blood pressure.


Description:

For a detailed background, please see Clinical Trials registration number NCT05661721. In brief, out-of-office blood pressure is more strongly associated with cardiovascular risk than office blood pressure. Licorice is known to raise blood pressure, but no previous studies have measured the effects on home blood pressure. In a previous study, the response to licorice intake varied between participants. The aim of this study is to analyze the response of the most "licorice sensitive" quartile of participants from the original study to lower dosages of licorice, corresponding to 20 and 50 milligram och GA daily.


Recruitment information / eligibility

Status Recruiting
Enrollment 7
Est. completion date December 31, 2024
Est. primary completion date May 31, 2024
Accepts healthy volunteers Accepts Healthy Volunteers
Gender All
Age group 18 Years to 31 Years
Eligibility Inclusion Criteria: - Previous participation in the Licorice and home blood pressure study (NCT05661721). Exclusion Criteria: - Known hypertension, cardiovascular disease, kidney disease, liver disease, hormonal disease, peanut allergy, eating disorder or headache disease (including tension headache and migraine) - Known alcohol abuse or drug abuse (including cannabis and anabolic steroids) treatment with hormonal drugs (including oral contraceptives - Known intolerance to licorice intake.

Study Design


Related Conditions & MeSH terms


Intervention

Other:
Licorice
Ecologic sweet licorice pastilles made from Glycyrrhiza glabra grown in Calabria, Italy, with a GA content of 29.9 ±2.0 mg/g.

Locations

Country Name City State
Sweden Cityhälsan Centrum Norrköping Östergötland

Sponsors (1)

Lead Sponsor Collaborator
Linkoeping University

Country where clinical trial is conducted

Sweden, 

References & Publications (5)

Deutch MR, Grimm D, Wehland M, Infanger M, Kruger M. Bioactive Candy: Effects of Licorice on the Cardiovascular System. Foods. 2019 Oct 14;8(10):495. doi: 10.3390/foods8100495. — View Citation

Parati G, Stergiou GS, Bilo G, Kollias A, Pengo M, Ochoa JE, Agarwal R, Asayama K, Asmar R, Burnier M, De La Sierra A, Giannattasio C, Gosse P, Head G, Hoshide S, Imai Y, Kario K, Li Y, Manios E, Mant J, McManus RJ, Mengden T, Mihailidou AS, Muntner P, Myers M, Niiranen T, Ntineri A, O'Brien E, Octavio JA, Ohkubo T, Omboni S, Padfield P, Palatini P, Pellegrini D, Postel-Vinay N, Ramirez AJ, Sharman JE, Shennan A, Silva E, Topouchian J, Torlasco C, Wang JG, Weber MA, Whelton PK, White WB, Mancia G; Working Group on Blood Pressure Monitoring and Cardiovascular Variability of the European Society of Hypertension. Home blood pressure monitoring: methodology, clinical relevance and practical application: a 2021 position paper by the Working Group on Blood Pressure Monitoring and Cardiovascular Variability of the European Society of Hypertension. J Hypertens. 2021 Sep 1;39(9):1742-1767. doi: 10.1097/HJH.0000000000002922. — View Citation

Rizzato G, Scalabrin E, Radaelli M, Capodaglio G, Piccolo O. A new exploration of licorice metabolome. Food Chem. 2017 Apr 15;221:959-968. doi: 10.1016/j.foodchem.2016.11.068. Epub 2016 Nov 17. — View Citation

Spinks EA, Fenwick GR. The determination of glycyrrhizin in selected UK liquorice products. Food Addit Contam. 1990 Nov-Dec;7(6):769-78. doi: 10.1080/02652039009373939. — View Citation

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; Authors/Task Force Members:. 2018 ESC/ESH Guidelines for the management of arterial hypertension: The Task Force for the management of arterial hypertension of the European Society of Cardiology and the European Society of Hypertension: The Task Force for the management of arterial hypertension of the European Society of Cardiology and the European Society of Hypertension. J Hypertens. 2018 Oct;36(10):1953-2041. doi: 10.1097/HJH.0000000000001940. Erratum In: J Hypertens. 2019 Jan;37(1):226. — View Citation

Outcome

Type Measure Description Time frame Safety issue
Primary Systolic home blood pressure Systolic home blood pressure 3 days before interventions and 28 days during intervention
Secondary Diastolic home blood pressure Diastolic home blood pressure 3 days before interventions and 28 days during intervention
Secondary Body weight Body weight Day 0, 14 and 28
Secondary Plasma sodium Plasma sodium Day 0, 14 and 28
Secondary Plasma potassium Plasma potassium Day 0, 14 and 28
Secondary Plasma creatinine Plasma creatinine Day 0, 14 and 28
Secondary Plasma N-terminal pro B-type natriuretic peptide Plasma N-terminal pro B-type natriuretic peptide Day 0, 14 and 28
Secondary Plasma renin Plasma renin Day 0, 14 and 28
Secondary Serum aldosterone Serum aldosterone Day 0, 14 and 28
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