Can Clovinol (clove extract) lower blood sugar levels after meals in healthy volunteers?

Effects of Clovinol on random blood sugar in healthy and pre-diabetic adults - an open-label pilot study

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

ISRCTN

Registry ID

ISRCTN15680985

Enrollment

Registered

2018-09-28

Start date

2014-09-05

Completion date

Unknown

Last updated

2019-05-27

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

Conditions

Prediabetes Nutritional, Metabolic, Endocrine

Interventions

250 mg Clovinol, a hydroethanolic water-soluble exract of unopened clove bud (Syzygium aromaticum L.), administered in one gelatin capsule once daily immediately after lunch for 30 days

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: 1. Healthy 2. Non-obese 3. Aged 25 - 35 years 4. Blood glucose below 125 mg/dL

Exclusion criteria

Exclusion criteria: 1. Take any medication 2. Obese 3. Have diabetes

Design outcomes

Primary

Measure	Time frame
Blood glucose measured with a digital glucometer 2 hours after lunch (post-prandial) measured on days 1, 12, 24 and 30. Day 1 is without Clovinol.	—

Secondary

Measure	Time frame
Blood glucose measured with a digital glucometer immediately before lunch (pre-prandial) measured on days 1, 12, 24 and 30. Day 1 is without Clovinol.	—

Countries

India

Contacts

Public ContactIM Krishnakumar

Outcome results

None listed

Source: ISRCTN (via WHO ICTRP) · Data processed: Mar 3, 2026