NCT02588248

Brief Summary

The primary objective of this double-blinded, prospective, randomized placebo-controlled study is to evaluate for change in endoscopic adenoma detection rates (ADR) with the use of peppermint oil solution vs placebo application during colonoscopy. The investigators hypothesize that ADR will be increased with the use of the peppermint oil solution and thus further reduce the risk of colon cancer by means of colonoscopy.

Trial Health

57
Monitor

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
82

participants targeted

Target at below P25 for phase_3

Timeline
Completed

Started Apr 2017

Shorter than P25 for phase_3

Geographic Reach
1 country

1 active site

Status
terminated

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

October 6, 2015

Completed
21 days until next milestone

First Posted

Study publicly available on registry

October 27, 2015

Completed
1.5 years until next milestone

Study Start

First participant enrolled

April 27, 2017

Completed
1 month until next milestone

Primary Completion

Last participant's last visit for primary outcome

May 30, 2017

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

May 30, 2017

Completed
4.9 years until next milestone

Results Posted

Study results publicly available

April 19, 2022

Completed
Last Updated

April 19, 2022

Status Verified

March 1, 2022

Enrollment Period

1 month

First QC Date

October 6, 2015

Results QC Date

January 12, 2022

Last Update Submit

March 23, 2022

Conditions

Keywords

Colon CancerColonic PolypsL-MentholC-Mint

Outcome Measures

Primary Outcomes (1)

  • Adenoma Detection Rates

    Evaluate for changes in adenoma detection rates with the use of intraluminal peppermint oil application vs sterile water application during colonoscopy.

    2 weeks

Secondary Outcomes (5)

  • Polyp Detection Rates

    1 week .

  • Procedure Time

    immediate

  • Advanced Adenoma Detection Rates

    2 weeks

  • Cancer Detection Rates

    2 weeks

  • Patient Comfort Level Recorded on Post-procedure Survey

    1 day

Study Arms (2)

Peppermint Oil

EXPERIMENTAL

Solution A) Peppermint oil solution (1.6% peppermint oil, which is 0.8% L-menthol) Ingredients: 1. 16mL of peppermint oil (provided by the NowFoods® company) 2. 0.4mL of Tween® 80 (i.e. Polysorbate 80) - this is a commonly used food additive that acts as a surfactant to bring the peppermint oil into solution 3. 1L prepackage sterile water 4. 2.6mL of undyed simethicone

Drug: Peppermint Oil

Placebo

PLACEBO COMPARATOR

Solution B) Placebo solution Ingredients: 1. 0.4mL of Tween® 80 (i.e. Polysorbate 80) - this is a commonly used food additive that acts as a surfactant to bring the peppermint oil into solution 2. 1L prepackage sterile water 3. 2.6mL of undyed simethicone Instructions to prepare: 4. Add tween and simethicone to sterile water. Then, shake vigorously. 5. Once solution has settled, and patient has been randomized, draw 20mL of solution into a plastic syringe

Other: Placebo

Interventions

During the colonoscopy the Endoscopists will be required to deliver intraluminally 1 syringe at the cecum and 1 syringe in the sigmoid colon. Up to 2 additional doses can be delivered at the discretion of the endoscopist up to a maximum of 4 total doses (max total dose = 640 mg of L-Menthol).

Also known as: L-Menthol
Peppermint Oil
PlaceboOTHER

During the colonoscopy the Endoscopists will be required to deliver intraluminally 1 syringe at the cecum and 1 syringe in the sigmoid colon. Up to 2 additional doses can be delivered at the discretion of the endoscopist up to a maximum of 4 total doses (max total dose = 80 ml of Solution B, also has 0 mg of L-Menthol).

Placebo

Eligibility Criteria

Age45 Years+
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • At least 50 years of age in Caucasians or 45 years of age in African-Americans.
  • Patients undergoing primary screening colonoscopy (either average risk or increased-risk) or surveillance colonoscopy after prior screening/surveillance colonoscopy.
  • Capable of understanding instructions, adhering to study schedules and requirements, and willing to provide informed consent.

You may not qualify if:

  • History of colectomy, partial or complete
  • Symptoms suggesting possible colorectal stenosis or cancer
  • Inflammatory bowel disease
  • Familial polyposis syndromes
  • History of, or current diagnosis of colorectal cancer
  • American Society of Anesthesia Physical Stats (ASA PS) score of IV or greater
  • Non-correctable coagulopathy
  • Currently receiving anti-thrombotic therapy, with an INR \> 1.5
  • Poor prep, total BBPS score \< 6, or any part of the colon \< 2.
  • Patients with known allergy to peppermint oil or peppermint containing products.
  • Patients taking calcium channel blockers (Amlodipine, Nifedipine, Verapamil, Diltiazem, Dihydropyridine, Felodipine, etc).

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

University Hospitals Cleveland Medical Center

Cleveland, Ohio, 44106, United States

Location

MeSH Terms

Conditions

Colonic PolypsColonic Neoplasms

Interventions

peppermint oilMenthol

Condition Hierarchy (Ancestors)

Intestinal PolypsPolypsPathological Conditions, AnatomicalPathological Conditions, Signs and SymptomsColorectal NeoplasmsIntestinal NeoplasmsGastrointestinal NeoplasmsDigestive System NeoplasmsNeoplasms by SiteNeoplasmsDigestive System DiseasesGastrointestinal DiseasesColonic DiseasesIntestinal Diseases

Intervention Hierarchy (Ancestors)

CyclohexanolsHexanolsFatty AlcoholsAlcoholsOrganic ChemicalsCyclohexane MonoterpenesCyclohexanesCycloparaffinsHydrocarbons, AlicyclicHydrocarbons, CyclicHydrocarbonsMonoterpenesTerpenesLipids

Results Point of Contact

Title
L-Menthol Injection as a Novel Technique during Colonoscopy: The MINT-C study
Organization
UHClevelandMC

Study Officials

  • Richard Wong, MD

    University Hospitals Cleveland Medical Center

    PRINCIPAL INVESTIGATOR

Publication Agreements

PI is Sponsor Employee
No
Restrictive Agreement
No

Study Design

Study Type
interventional
Phase
phase 3
Allocation
RANDOMIZED
Masking
DOUBLE
Who Masked
PARTICIPANT, CARE PROVIDER
Purpose
DIAGNOSTIC
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
M.D.

Study Record Dates

First Submitted

October 6, 2015

First Posted

October 27, 2015

Study Start

April 27, 2017

Primary Completion

May 30, 2017

Study Completion

May 30, 2017

Last Updated

April 19, 2022

Results First Posted

April 19, 2022

Record last verified: 2022-03

Locations