Evidence map›Paper›PMID 28962661›Full record

Trial reportTrials2017

Cinnamomum zeylanicum (Ceylon cinnamon) as a potential pharmaceutical agent for type-2 diabetes mellitus: study protocol for a randomized controlled trial.

Priyanga Ranasinghe, Priyadarshani Galappaththy, Godwin Roger Constantine, Ranil Jayawardena, Hasitha Dhananjaya Weeratunga, Sirimal Premakumara, Prasad Katulanda

Open access · goldAbstract readClinical Trial, Phase IIClinical Trial, Phase IIIRandomized Controlled Trial
In one paragraph

Trial report in Trials, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed, 1 pooled it
2.7field-weighted citation impact, top 9% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

15 citing papers in PubMed, 1 synthesis or guideline pooled it, 53 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Effects of Cinnamon (Nutrients · 2023
    Article
  4. Article
  5. Essential Oil Chemotypes and Genetic Variability ofMolecules (Basel, Switzerland) · 2022
    Article
  6. Molecules (Basel, Switzerland) · 2022
    Article
  7. Article
  8. Article
  9. Article
  10. Review
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors at 3 institutions in 2 countries.

Priyanga RanasingheDepartment of Pharmacology, Faculty of Medicine, University of Colombo, Colombo, Sri Lanka. priyanga.ranasinghe@gmail.com.ORCID http://orcid.org/0000-0002-1522-9276
Priyadarshani GalappaththyDepartment of Pharmacology, Faculty of Medicine, University of Colombo, Colombo, Sri Lanka.
Godwin Roger ConstantineDepartment of Clinical Medicine, Faculty of Medicine, University of Colombo, Colombo, Sri Lanka.
Ranil JayawardenaDepartment of Physiology, Faculty of Medicine, University of Colombo, Colombo, Sri Lanka.
Hasitha Dhananjaya WeeratungaIndustrial Technology Institute, Colombo, Sri Lanka.
Sirimal PremakumaraIndustrial Technology Institute, Colombo, Sri Lanka.
Prasad KatulandaDepartment of Clinical Medicine, Faculty of Medicine, University of Colombo, Colombo, Sri Lanka.
University of Colombo · LKIndustrial Technology Institute · LKQueensland University of Technology · AU

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundPrevious studies have explored the anti-diabetic effects of Cinnamomum cassia extract in vivo and in vitro. However, there are no studies at present exploring the effects of the indigenous species of Sri Lankan cinnamon (Cinnamomum zeylanicum) in patients with diabetes mellitus. The present study aims to evaluate the potential effects of Cinnamomum zeylanicum extract as a pharmaceutical agent in patients with type-2 diabetes mellitus. METHODS/

designThe study will be conducted as a randomized, double-blind, placebo-controlled clinical trial for a period of 4 months at the Medical Clinic, University Medical Unit, National Hospital of Sri Lanka. A total of 210 subjects with diabetes, in three equal groups, will be recruited for the study. The patients will be randomized in a 1:1:1 ratio according to the method of block randomization and the subjects will be randomly and equally assigned into two test groups (n = 70 each) and one placebo group (n = 70). The population will be stratified at randomization based on age, gender and disease severity. The treatment drug is a capsule containing Cinnamomum zeylanicum extract as the active ingredient and the placebo capsule will contain lactose monohydrate. Two doses of Cinnamomum zeylanicum extracts (250 mg and 500 mg of the cinnamon extract) will be used. The study drugs will be double blinded to both investigators and participants. The visits and the evaluations will be done as follows: screening (visit 0), 1 month (visit 1), 2 months (visit 2), 3 months (visit 3) and 4 months (visit 4). The following primary outcome measures will be evaluated: glycosylated hemoglobin (HbA DISCUSSION: We describe the protocol for a clinical trial design evaluating the effects of Cinnamomum zeylanicum (Ceylon cinnamon) in patients with type-2 diabetes mellitus. The result of the present study, positive or negative, should provide a step change in the evidence guiding current and future policies regarding the use of cinnamon dietary supplementation in patients with diabetes.

trial registrationSri Lanka Clinical Trials Registry (SLCTR), identifier: SLCTR/2017/010 ( http://slctr.lk/trials/714 ). Registered on 5 April 2017; study protocol version 3.1 21 March 2017.

Indexed as

Cinnamomum zeylanicumAdolescentAdultAgedBiomarkersBlood GlucoseClinical ProtocolsDiabetes Mellitus, Type 2Double-Blind MethodFemaleGlycated HemoglobinHumansHypoglycemic AgentsInsulinMaleMiddle AgedBiomarkersBlood GlucoseGlycated Hemoglobinhemoglobin A1c protein, humanHypoglycemic AgentsInsulinPlant ExtractsAdultsCeylon cinnamonCinnamomum zeylanicumDiabetesSri Lanka

Identifiers

PMID28962661
PMCPMC5622575
OpenAlexW2760171477

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.