ClinicalTrials.gg
CompletedNCT02386449CLEAR PREPUpdated Jan 12, 2016

A Study Comparing Picoprep With Mannitol and Bisacodyl for Colon Cleansing in Preparation for Colonoscopy

A Phase 4 interventional study of sodium picosulfate, magnesium oxide and citric acid (Picoprep®) and mannitol in Bowel Preparation, sponsored by Ferring Pharmaceuticals. Completed at 1 site in Brazil. Open to participants aged 18 Years to 60 Years. Per ClinicalTrials.gov, last updated 2016-01-12.

Sponsored by Ferring Pharmaceuticals · Phase 4 and Interventional

Phase
Phase 4
Study type
Interventional
Enrollment
184
Allocation
Randomized
Ages
18 Years to 60 Years
Sex
All
01

Study summary

This is a randomized, controlled, parallel group, assessor-blinded study to compare two colon cleansing preparations for colonoscopy. Subjects meeting all inclusion and exclusion criteria will be randomized and assigned to one of two study groups: Group I (PicoPrep) or Group II (Mannitol). In Group I, subjects will take one sachet of PicoPrep on the day before colonoscopy, and another sachet on the day of colonoscopy. In Group II, subjects will take Bisacodyl on the day before colonoscopy, and Mannitol on the day of colonoscopy.

02

Conditions studied

  • Bowel Preparation
03

In context

Lead sponsor

Ferring Pharmaceuticals is the lead sponsor of 249 studies on the registry; 4 are open to participants now.

Of its 15 completed or terminated interventional studies of FDA-regulated products, 14 (93%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 60 Years
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Men or women aged 18 to 60 years
  • Subjects scheduled for an elective colonoscopy
  • Women of child-bearing potential using at least one highly effective contraceptive method
  • Subjects able to understand all instructions
  • Informed consent signed

Exclusion criteria

Exclusion Criteria:

  • Hypersensitivity to active ingredients
  • Female participants pregnant or with a positive blood pregnancy test
  • Acute surgical abdomen
  • Previous colorectal surgery
  • Gastrointestinal (GI) surgery
  • GI diseases, active inflammatory bowel disease, colon disease
  • Ascites/hepatic cirrhosis, cardiac disease, advanced pulmonary or renal disease
  • Use of laxatives or antidiarrheal agents 72 hours prior to screening
  • Significant alterations in laboratory values or other diseases that could interfere with the results
05

Study design

Phase
Phase 4
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Single (Outcomes assessor)
Enrollment
184 participants (actual)

Study arms

  • Experimental
    Picoprep

    sodium picosulfate, magnesium oxide and citric acid

    Drug: sodium picosulfate, magnesium oxide and citric acid (Picoprep®)

  • Active comparator
    Mannitol and Bisacodyl

    Drug: mannitol · Drug: Bisacodyl

Interventions

06

What researchers measure

Primary outcomes

  1. Percentage of subjects classified as success (Aronchick scale)

    Defined as excellent or good according to the Aronchick scale

    Time frame: At visit 2 (day 1 of colonoscopy)

Secondary outcomes

  1. Percentage of subjects classified as success (Ottawa scale)

    Defined as excellent, good or fair according to the Ottawa scale

    Time frame: At visit 2 (day 1 of colonoscopy)

  2. Aggregate Tolerability Score (Colonoscopy Preparation Subject Tolerability Questionnaire)

    As assessed by a Colonoscopy Preparation Subject Tolerability Questionnaire

    Time frame: At visit 2 (day 1 of colonoscopy)

  3. Subject satisfaction (Likert scale)

    As assessed by a subject survey using a 3 point Likert scale

    Time frame: At visit 2 (day 1 of colonoscopy)

07

Study locations

1 site
  • Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo (there may be other sites in this country)
    São Paulo, Brazil
08

Timeline

Tracking since Sep 25, 2026
Not marked actual or estimatedDates not marked actual or estimated

The record gives a start of Feb 2015, a primary completion of Dec 2015 and a completion of Dec 2015. It does not say whether these dates are actual or estimated.

How these figures are worked out, and which studies are left out of them.

Registered
Mar 6, 2015
First posted
Mar 12, 2015
Start
Feb 2015
Primary completionActual
Dec 2015
CompletionActual
Dec 2015
Last update
Jan 12, 2016
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Jan 12, 2016, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT02386449
Responsible party
Sponsor
First posted
Mar 12, 2015
Start date
Feb 2015
Primary completion
Dec 2015
Completion
Dec 2015
Last update
Jan 12, 2016

Study contacts

Clinical Development Support
study director · Ferring Pharmaceuticals

Oversight

Data monitoring committee
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Jan 2016. You cannot join it, but the record below documents what was studied.

Follow this study

Get an email when the registry record changes — status, dates, results — or when someone posts here.

Sign in to follow

Discussion

Questions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.

Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.

Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.

Studies of the drug tested here: Picosulfate sodium

Start the discussion