NCT00611442

Brief Summary

The primary outcomes of this procedure will be: 1. The cleanliness of the prep as measured by the Ottawa Scale (attachment a). Secondary outcomes will be: 1. Patient satisfaction with the prep measured by 5 point Likert scale (attachment b); 2. Procedure time; 3. The number and size of polyps detected on examination.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
191

participants targeted

Target at P75+ for not_applicable

Timeline
Completed

Started Oct 2007

Shorter than P25 for not_applicable

Geographic Reach
1 country

1 active site

Status
completed

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

Study Start

First participant enrolled

October 1, 2007

Completed
3 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

January 1, 2008

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

January 1, 2008

Completed
28 days until next milestone

First Submitted

Initial submission to the registry

January 29, 2008

Completed
13 days until next milestone

First Posted

Study publicly available on registry

February 11, 2008

Completed
4.7 years until next milestone

Results Posted

Study results publicly available

November 1, 2012

Completed
Last Updated

November 1, 2012

Status Verified

October 1, 2012

Enrollment Period

3 months

First QC Date

January 29, 2008

Results QC Date

July 24, 2012

Last Update Submit

October 3, 2012

Conditions

Outcome Measures

Primary Outcomes (1)

  • The Overall Cleanliness of the Prep as Measured by the Ottawa Scale

    Bowel cleansing was evaluated with the Ottawa bowel preparation scale by each endoscopist during the endoscopy. Neither the endoscopist nor the endoscopy nurse was aware of the bowel preparation used prior to the colonoscopy. The Ottawa bowel preparation scale is a validated tool and was used in this study to provide a reliable quality assessment of the bowel preparation used for colonoscopy. This validated scale rates each section of the colon, the right, the mid, and the rectosigmoid colon, on a 5-point scale (0-4), as well as a global 3-point rating for overall colonic fluid (0-2). The total score ranges from 0 to 14. An excellent preparation with little fluid would score 0-3, a good preparation 4-6, while scores higher than 7would indicate progressively worsening bowel preparations. A completely unprepared colon would score 11-14, depending on the amount of colonic fluid

    measured upon completion of the colonoscopy, colonoscopies completed during the course of the study (approximately 4 month period)

Secondary Outcomes (3)

  • Patient Satisfaction With the Prep Measured by 5 Point Likert Scale

    measured after completion of the bowel preparation and prior to the colonoscopy, completed during the course of the study (approximately 4 month period)

  • Procedure Time

    measured upon completion of the colonoscopy, colonoscopies completed during the course of the study (approximately 4 month period)

  • The Number of Polyps Detected on Examination

    measured upon completion of the colonoscopy, colonoscopies completed during the course of the study (approximately 4 month period)

Study Arms (2)

1

ACTIVE COMPARATOR

split-dose PEG solution without dietary restrictions plus lubiprostone 24mcg gelcap pretreatment

Drug: lubiprostone

2

PLACEBO COMPARATOR

split-dose PEG solution without dietary restrictions plus placebo pretreatment

Drug: placebo

Interventions

lubiprostone 24mcg gelcap, 1 gelcap taken at noon the day prior to the colonoscopy

Also known as: amitiza
1

placebo gelcap, taken at noon the day prior to the colonoscopy

2

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Adult patients referred to our clinic for Average or Increased Risk screening for Colorectal Cancer
  • Ages will be from 18 years of age and older

You may not qualify if:

  • Chronic kidney disease
  • Previous diagnosis of congestive heart failure
  • History of bowel obstruction
  • History of solid organ transplant
  • Pregnancy

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Brooke Army Medical Center

Fort Sam Houston, Texas, 78234, United States

Location

Related Publications (5)

  • Harewood GC, Wiersema MJ, Melton LJ 3rd. A prospective, controlled assessment of factors influencing acceptance of screening colonoscopy. Am J Gastroenterol. 2002 Dec;97(12):3186-94. doi: 10.1111/j.1572-0241.2002.07129.x.

    PMID: 12492209BACKGROUND
  • Tan JJ, Tjandra JJ. Which is the optimal bowel preparation for colonoscopy - a meta-analysis. Colorectal Dis. 2006 May;8(4):247-58. doi: 10.1111/j.1463-1318.2006.00970.x.

    PMID: 16630226BACKGROUND
  • El Sayed AM, Kanafani ZA, Mourad FH, Soweid AM, Barada KA, Adorian CS, Nasreddine WA, Sharara AI. A randomized single-blind trial of whole versus split-dose polyethylene glycol-electrolyte solution for colonoscopy preparation. Gastrointest Endosc. 2003 Jul;58(1):36-40. doi: 10.1067/mge.2003.318.

    PMID: 12838218BACKGROUND
  • Church JM. Effectiveness of polyethylene glycol antegrade gut lavage bowel preparation for colonoscopy--timing is the key! Dis Colon Rectum. 1998 Oct;41(10):1223-5. doi: 10.1007/BF02258217.

    PMID: 9788383BACKGROUND
  • Lacy BE, Levy LC. Lubiprostone: a chloride channel activator. J Clin Gastroenterol. 2007 Apr;41(4):345-51. doi: 10.1097/01.mcg.0000225665.68920.df.

    PMID: 17413599BACKGROUND

MeSH Terms

Interventions

Lubiprostone

Intervention Hierarchy (Ancestors)

AlprostadilFatty Acids, MonounsaturatedFatty Acids, UnsaturatedFatty AcidsLipids

Limitations and Caveats

This study may be limited by the recruitment of outpatients as the only study participants. The study results might have also been affected by limiting the indication for colonoscopy to colorectal cancer screening.

Results Point of Contact

Title
Dr. Joel Stengel
Organization
Carl R Darnall Army Medical Center

Study Officials

  • Joel Z Stengel, MD

    Brooke Army Medical Center

    PRINCIPAL INVESTIGATOR

Publication Agreements

PI is Sponsor Employee
No
Restrictive Agreement
No

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
DOUBLE
Who Masked
PARTICIPANT, CARE PROVIDER
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
FED
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Gastroenterology Fellow

Study Record Dates

First Submitted

January 29, 2008

First Posted

February 11, 2008

Study Start

October 1, 2007

Primary Completion

January 1, 2008

Study Completion

January 1, 2008

Last Updated

November 1, 2012

Results First Posted

November 1, 2012

Record last verified: 2012-10

Locations