Cinnamon trials recruiting now

5 registrations that name cinnamon as a study arm and are recruiting or about to, as ClinicalTrials.gov listed them on Oct 20, 2026. Read each listing for its full criteria and current status.

Kymata never assesses eligibility. Each listing names its own criteria; only its study team can say whether someone can join. Trial doses are given under the trial's monitoring and are not a schedule for anyone outside it.

Filter 5 registrations

Status

Phase

All 5 registrations

RecruitingNCT07743073

The Effects of Ceylon Cinnamon (Cinnamomum Verum) Supplementation on Blood Glucose, Lipid Profile Levels, Body Mass Index, and Pain Intensity Among Adult Individuals With Painful Diabetic Peripheral Neuropathy

  • No phase
  • JAWAD AHMAD ABU-SHENNAR
  • About 164 people
  • Started Feb 1, 2026

In plain words A study of cinnamon in people 18 and older, run by JAWAD AHMAD ABU-SHENNAR. It plans to enroll about 164 people at 1 site, none in the US.

Who it lists and where

Who the trial lists, as registered

Lists people 18 and older. Conditions: Painful Diabetic Peripheral Neuropathy.

  • Age ≥ 18years diagnosed with PDPN
  • With documented T2DM

The exclusion criteria are on the listing.

What it tests, as registered

Ceylon Cinnamon Supplement

Registered summary

Background: Painful diabetic peripheral neuropathy (PDPN) is a severe, disabling complication of type 2 diabetes mellitus (T2DM), closely associated with insulin resistance, chronic neuroinflammation, and oxidative stress. Plant-based dietary supplements, particularly Ceylon cinnamon (Cinnamomum verum), contain bioactive compounds with potential anti-diabetic, antioxidant, and neuroprotective properties. The full summary is on the listing.

Where, as registered

No US site; Jordan (1).

RecruitingNCT06164613

Use of Cinnamomum Verum for Induction of Labor. Double Blind Randomized Clinical Trial

  • Phase 2
  • Universidad Nacional Autonoma de Honduras
  • About 70 people
  • Started Dec 4, 2023

In plain words A Phase 2 study of cinnamon in female participants 14 to 45, run by Universidad Nacional Autonoma de Honduras. It plans to enroll about 70 people at 1 site, none in the US.

Who it lists and where

Who the trial lists, as registered

Lists female participants 14 to 45; healthy volunteers accepted. Conditions: Labor Onset and Length Abnormalities; First Birth.

  • Delivery of an informed consent form signed and dated by parents or guardian and patient
  • Declared willingness to comply with all study procedures and availability for the duration of the study.
  • provision of appropriate consent and assent
  • Willingness and ability to participate in study procedures

10 more inclusion criteria and the exclusion criteria are on the listing.

What it tests, as registered

Cinnamomum Verum oil extract; Placebo

Registered summary

The purpose of the research protocol is to evaluate the effectiveness of Cinnamomum verum extract for the initiation of labor. Cinnamaldehyde ((E)-3-Phenylprop-2-enal) is an α, β unsaturated aromatic aldehyde, derived from cinnamon (Cinnamomum Verum oil) used as a flavoring; It is a clear yellowish liquid substance, with a strong odor and flavor. It is the main component of cinnamon (63%), giving it its physicochemical properties. Cinnamon has been an element of empirical use for the beginning of labor, however, its effectiveness has not been demonstrated. The full summary is on the listing.

Where, as registered

No US site; Honduras (1).

RecruitingNCT07429227

Evaluation Through Innovative Examinations of Intestinal Dysbiosis Status in Patients Diagnosed With Cardiovascular Diseases and Evaluation of the Efficacy of Natural and Probiotic Extracts in the Non-pharmacological Approach to Improving Intestinal Dysbiosis Status.

  • No phase
  • Casa di Cura Dott. Pederzoli
  • About 15 people
  • Starts Mar 2026 (estimated)

In plain words A study of cinnamon in people 30 to 70, run by Casa di Cura Dott. Pederzoli. It plans to enroll about 15 people at 1 site, none in the US.

Who it lists and where

Who the trial lists, as registered

Lists people 30 to 70. Conditions: Acute Coronary Syndromes (ACS).

  • 1\. Signing of informed consent
  • 2\. Diagnosis of Acute Coronary Syndrome (ACS)
  • 3\. Age 30-70

The exclusion criteria are on the listing.

What it tests, as registered

Tea tree (Melaleuca alternifolia), Cinnamon (Cynnamomum zeylanicum) bark, Clove carnation (Eugenia caryopyllus) flowers, Red thyme (Thymus vulgaris) plant

Registered summary

The prospective experimental study aims to take an instantaneous photograph of the subject at time T0 and after 24 hours of intestinal permeability and dysbiosis indices in patients with acute coronary syndromes (ACS) which include unstable coronary artery disease (unstable angina) and acute myocardial infarction (AMI). The aim is to verify whether essential oils in particular formulations with high bioavailability are able to re-establish intestinal eubiosis after 2 months, confirmed by tests laboratory specifics such as metabolomics.

Where, as registered

No US site; Italy (1).

Not yet recruitingNCT07757399

The Therapeutic Effects of Ceylon Cinnamon Supplementation and a Self-Efficacy Educational Program on Glycemic Control, Lipid Profiles, and Pain in Type 2 Diabetes Mellitus With Painful Diabetic Peripheral Neuropathy

  • No phase
  • Jerash Private University
  • About 900 people
  • Starts Aug 1, 2026 (estimated)

In plain words A study of cinnamon in people 18 and older, run by Jerash Private University. It plans to enroll about 900 people and lists no sites yet.

Who it lists and where

Who the trial lists, as registered

Lists people 18 and older. Conditions: Type 2 Diabetes Mellitus; Painful Diabetic Peripheral Neuropathy (PDPN).

  • Diagnosed with Type 2 Diabetes Mellitus (T2DM) for at least 6 months.
  • Confirmed diagnosis of painful diabetic peripheral neuropathy (PDPN).
  • Age between 18 and 65 years.
  • Able to provide written informed consent and willing to comply with the study protocol, supplement intake, and educational sessions.

The exclusion criteria are on the listing.

What it tests, as registered

Ceylon Cinnamon (Cinnamomum verum) Supplement; Matching Placebo; Self-Efficacy-Based Educational Program

Registered summary

This randomized controlled trial aims to evaluate the therapeutic effects of pure Ceylon cinnamon (Cinnamomum verum) supplementation combined with a structured self-efficacy-based educational program on glycemic control, lipid profiles, and neuropathic pain in adult patients with type 2 diabetes mellitus (T2DM) and painful diabetic peripheral neuropathy (PDPN). The full summary is on the listing.

Where, as registered

No sites listed yet.

Not yet recruitingNCT07315412

Chewing Gum Flavors to Reduce Postoperative Nausea and Vomiting After PIPAC

  • No phase
  • Fenerbahce University
  • About 75 people
  • Starts Dec 10, 2025 (estimated)

In plain words A study of cinnamon in people 18 to 80, run by Fenerbahce University. It plans to enroll about 75 people at 1 site, none in the US.

Who it lists and where

Who the trial lists, as registered

Lists people 18 to 80. Conditions: Postoperative Nausea and Vomiting (PONV); Peritoneal Metastases From Colorectal Cancer; Intraperitoneal Chemotherapy.

  • Adults aged 18 years or older undergoing Pressurized IntraPeritoneal Aerosol Chemotherapy (PIPAC).
  • Able to communicate, understand study instructions, and provide written informed consent.
  • No known allergy or intolerance to ginger, mint, or cinnamon.
  • Able and willing to chew gum for 15 minutes.

1 more inclusion criterion and the exclusion criteria are on the listing.

What it tests, as registered

Ginger-Mint Chewing Gum; Cinnamon Chewing Gum

Registered summary

This randomized controlled clinical trial aims to evaluate the effectiveness of chewing gum with different natural flavors in reducing postoperative nausea and vomiting (PONV) following Pressurized IntraPeritoneal Aerosol Chemotherapy (PIPAC). Adult patients undergoing PIPAC will be randomly assigned to one of three groups: (1) ginger-mint flavored gum, (2) cinnamon flavored gum, or (3) control group with standard postoperative care only. Participants in the intervention arms will chew one piece of gum for 15 minutes in the post-anesthesia care unit (PACU). The full summary is on the listing.

Where, as registered

No US site; Turkey (Türkiye) (1).

ClinicalTrials.gov lists 24 open registrations for this search, including ones where cinnamon is not a study arm or that are past the 5 we keep. Search them on ClinicalTrials.gov (opens in new tab).

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