Study of NPF-08 in Patients Who Receive Colonoscopy

A Phase III Comparison Study of NPF-08 in Patients Who Receive Colonoscopy

To study non-inferiority of intestinal cleansing effect in both NPF-08 1-day treatment group and NPF-08 2-day split dose group to the cleansing effect in Moviprep® 1-day treatment group, for the subjects who will receive endoscopy large bowel. If the non-inferiority will be validated, superiority of intestinal cleansing effect in both groups of NPF-08 will be studied.

Furthermore, for the assessment of safety of NPF-08, the adverse events and adverse drug reactions observed after the administration to post-examination period will be studied, compared to those at Moviprep® 1-day treatment group.

Study Overview

• Status: Completed
• Conditions: Patients Who Receive Colonoscopy
• Intervention / Treatment: Drug: NPF-08 （1-day treatment）; Drug: NPF-08 （2-day split dose）; Drug: Moviprep（1-day treatment）

• Study Type: Interventional
• Enrollment (Actual): 632
• Phase: Phase 3

Contacts and Locations

Study Locations

• Japan
  • Hiroshima, Japan
    • NPF-08 Trial Site 8
  • Kouchi, Japan
    • NPF-08 Trial Site 13
  • Osaka, Japan
    • NPF-08 Trial Site 6
  • Osaka, Japan
    • NPF-08 Trial Site 7
  • Chiba
    • Abiko, Chiba, Japan
      • NPF-08 Trial Site 12
    • Kashiwa, Chiba, Japan
      • NPF-08 Trial Site 11
  • Gunnma
    • Maebashi, Gunnma, Japan
      • NPF-08 Trial Site 1
  • Kanagawa
    • Kawasaki, Kanagawa, Japan
      • NPF-08 Trial Site 10
    • Yokohama, Kanagawa, Japan
      • NPF-08 Trial Site 5
    • Yokohama, Kanagawa, Japan
      • NPF-08 Trial Site 9
  • Tokyo
    • Chuo-Ku, Tokyo, Japan
      • NPF-08 Trial Site 2
    • Minato-Ku, Tokyo, Japan
      • NPF-08 Trial Site 3
    • Shinjuku-Ku, Tokyo, Japan
      • NPF-08 Trial Site 4

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 20 years and older (ADULT, OLDER_ADULT)
• Accepts Healthy Volunteers: No
• Genders Eligible for Study: All

Description

Inclusion Criteria:

1. Japanese men and women aged 20 years or older at obtaining the written informed consent.
2. Patients who require colonoscopy (except for emergency colonoscopy)
3. Patients who have the ability to consent and submit the written informed consent by themselves.

Exclusion Criteria:

1. Patients who have or are suspected to have gastrointestinal obstruction.
2. Patients who have or are suspected to have intestinal perforation.
3. Patients who have or are suspected to have toxic megacolon.
4. Patients who have or are suspected to have gastric evacuation disorder (gastroparesis).
5. Patients with intestinal stenosis or high-grade constipation (stool frequency of 2 or less in a week or who have used laxative on a daily basis).
6. Patients with vomiting reflex or in whom accidental ingestion may occur.
7. Patients with a history of gastrointestinal surgery (except for appendicectomy).
8. Patients who were decided as glucose-6-phosphate dehydrogenase (G-6-PD) deficiency.
9. Patients with renal impairment (urea nitrogen: 25mg/dL or more, or creatinine: 2mg/dL or more)
10. Patients with hepatic dysfunction (total bilirubin: 3.0mg/dL or more, ALT: 100IU/L or more or AST: 100IU/L or more)
11. Patients who have undergone or require therapy due to high-grade cardiac disease (including angina pectoris or myocardial infarction)
12. Patients with high risk of arrhythmia (with a history or complications of QT prolongation, myocardial infarction, angina pectoris, cardiac failure or cardiomyopathy)
13. Patients with dehydration.
14. Patients who were diagnosed with active inflammatory bowel disease at screening period.
15. Inpatients due to the reasons other than endoscopy large bowel.
16. Patients who have undergone nutritional control using total parenteral nutrition or enteral nutrition.
17. Women who are or may be pregnant, lactating or wish to become pregnant during the trial period.
18. Patients with a history or high-risk of seizure.
19. Patients with a history of shock or hypersensitivity for the active ingredient of the investigational product.
20. Patients who have received the other investigational product within 4 months before the written informed consent or who are participating in the other clinical trials.
21. Patients in whom Investigator/Sub-Investigator decided not to be eligible for this trial.

Study Plan

How is the study designed?

Design Details

• Primary Purpose: DIAGNOSTIC
• Allocation: RANDOMIZED
• Interventional Model: PARALLEL
• Masking: SINGLE

Number of Arms

3

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
EXPERIMENTAL: NPF-08 （1-day treatment）	Drug: NPF-08 （1-day treatment）; NPF-08 will be administered on the day of colonoscopy.
EXPERIMENTAL: NPF-08 （2-day split dose）	Drug: NPF-08 （2-day split dose）; NPF-08 will be administered at 2 days divided into the day before and on the day of colonoscopy.
ACTIVE_COMPARATOR: Moviprep（1-day treatment）	Drug: Moviprep（1-day treatment）; Moviprep will be administered on the day of colonoscopy.

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
The efficacy rate of overall intestinal cleansing effect evaluated by Endoscopic Image Evaluation Committee (EIEC).	The bowel cleanliness at 5 colon segments (appendix/ascending colon, transverse colon, descending colon, sigmoid colon, rectum) will be evaluated. If the bowel cleanliness is "1" or "2" at all colon segments, it is judged as effective. Other cases will be judged as not effective.; Almost no residue is found in the intestinal tract enabling good observation; Residue remains but does not interfere the observation; Residue interferes the observation; A lot of residue makes unable to observe; Unable to evaluate	1day

Secondary Outcome Measures

Outcome Measure	Measure Description	Time Frame
The efficacy rate of overall intestinal cleansing effect evaluated by colonoscopists	The bowel cleanliness at 5 colon segments (appendix/ascending colon, transverse colon, descending colon, sigmoid colon, rectum) will be evaluated. If the bowel cleanliness is "1" or "2" at all colon segments, it is judged as effective. Other cases will be judged as not effective.; Almost no residue is found in the intestinal tract enabling good observation; Residue remains but does not interfere the observation; Residue interferes the observation; A lot of residue makes unable to observe; Unable to evaluate	1day
Colon cleansing effect by site	The bowel cleanliness at 5 colon segments (appendix/ascending colon, transverse colon, descending colon, sigmoid colon, rectum) will be evaluated.; Almost no residue is found in the intestinal tract enabling good observation; Residue remains but does not interfere the observation; Residue interferes the observation; A lot of residue makes unable to observe; Unable to evaluate	1day
Evaluation based on Ottawa Bowel Preparation Scale	Endoscopic operators will evaluate for colon cleansing degree at the bowel 5 sites (cecum/ascending colon, transverse colon, descending colon, sigmoid colon and rectum) based on the following 5 degrees (0-4) and the amount of fluid at overall bowel based on the following 3 degrees (0-2), and will also evaluate the status during operating normal endoscopy. Lower score indicates better cleansing effect.	1day
Time from the initiation of dosing the investigational product to the completion of colon cleansing on the day of endoscopy.	Clinical cooperator will determine the duration from the initiation of administration of the investigational product on the day of colonoscopy to the time when the cooperator will decide that colon cleansing will be completed as the discharged liquid will become transparent.	1day
Dosage of the investigational product.	Clinical cooperator will determine the dosage of the investigational product from the initiation of administration of the investigational product to the time when the cooperator will decide that colon cleansing will be completed as the discharged liquid will become transparent.	1day or 2day
Concordance rate of intestinal cleansing effect between by EIEC members.	For the evaluations of intestinal cleansing degree conducted at the primary endpoint, the concordance rate between by 3 members of EIEC will be investigated.	1day
Concordance rate between the intestinal cleansing effect evaluated by EIEC and the endoscopic operators.	For the evaluations of intestinal cleansing degree conducted at the primary endpoint and secondary endpoints, the concordance rate between the evaluations by EIEC and that by the endoscopic operators will be investigated.	1day
Acceptability by subjects	Subjects will evaluate the following points by selecting among 10 levels (circling the applicable figure): Taste of the investigational product; amount of the investigational product; amount of water you will drink after taking the investigational product; and acceptability of the pre-medication (will you choose the pre-medication at the next time?).	1day

Collaborators and Investigators

• Sponsor: Nihon Pharmaceutical Co., Ltd

Publications and helpful links

General Publications

• Saito Y, Oka S, Tamai N, Kudo T, Kuniyoshi N, Shirakura T, Omae Y, Hamahata Y, Arai T, Tanaka S, Uedo N, Shimizu S, Fukuzawa M, Uraoka T, Ichinose S, Ogata H, Kobayashi K, Saito S, Tajiri H. Efficacy and safety of oral sulfate solution for bowel preparation in Japanese patients undergoing colonoscopy: Noninferiority-based, randomized, controlled study. Dig Endosc. 2021 Nov;33(7):1131-1138. doi: 10.1111/den.13930. Epub 2021 Mar 9.

Study record dates

Study Major Dates

• Study Start (ACTUAL): January 5, 2019
• Primary Completion (ACTUAL): June 19, 2019
• Study Completion (ACTUAL): June 19, 2019

Study Registration Dates

• First Submitted: January 4, 2019
• First Submitted That Met QC Criteria: January 4, 2019
• First Posted (ACTUAL): January 7, 2019

Study Record Updates

• Last Update Posted (ACTUAL): November 29, 2022
• Last Update Submitted That Met QC Criteria: November 27, 2022
• Last Verified: August 1, 2019

More Information

Terms related to this study

• Other Study ID Numbers: NPF-08-01/C-01

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: No
• Studies a U.S. FDA-regulated device product: No