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Phase II study of NPO-13 during colonoscopy

Phase II exploratory study of NPO-13 in patients undergoing colonoscopy

Status
Active, not recruiting
Phases
Phase 2
Study type
Interventional
Source
JPRN
Registry ID
JPRN-jRCT2080224838
Enrollment
150
Registered
2019-08-20
Start date
2019-08-26
Completion date
Unknown
Last updated
2026-06-29

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

Conditions

Patients who receive colonoscopy

Interventions

investigational material(s) Generic name etc : l-menthol INN of investigational material : levo menthol Therapeutic category code : 799 Agents for not mainly purpose of therapeutic, n.e.c. Dosage and

Sponsors

Nihon Pharmaceutical Co., Ltd
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: (1) Patients who are between 20 and 85 years at the time of consent (2) Patients who need colonoscopy

Exclusion criteria

Exclusion criteria: (1) Patients with a history of abdominal surgical treatment (including the laparoscopic surgery) including the gynecology operation (2) Patients with contraindication to colonoscopy including the paralytic ileus (3) Patients with a history of shock or hypersensitivity to l-menthol or peppermint oil (mint oil) (4) Patient with contraindication to bowel cleansing preparation (5) Patient with contraindication to pain medicine and sedative medicine (6) Patient with contraindication to butylscopolamine bromide and glucagon (7) Patients on cancer treatment (chemotherapy or radiotherapy) (8) Patient with active inflammatory bowel disease or infectious enteritis (9) Patients who need sedative in colonoscopy (10) Patients who receives a therapeutic colonoscopy (11) Pregnant or lactating women, women of childbearing potential, or women who plan to become pregnant during the study (12) Patients who have received other investigational drugs within four months before consent or who are participating in other clinical studies (13) Patients otherwise ineligible for participation in the study in the investigator's or subinvestigator's opinion

Design outcomes

Primary

MeasureTime frame
efficacy exploratory Proportion of No or Mild colonic spasm at the all sites of NPO-13 treatment

Secondary

MeasureTime frame
efficacy exploratory Proportion of No or Mild colonic spasm at the each site of NPO-13 treatment

Countries

Japan

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026