ColonoscopyPhase 4PEGNCT00645801
Amitiza® Plus GoLYTELY® (PEG) Versus Placebo Plus GoLYTELY® for Outpatient Colonoscopy Preparation
A Phase 4 study testing lubiprostone (Amitiza) in people with Colonoscopy, run by Henry Ford Health System at 3 sites in United States.
Trial summary
The primary objective is to compare the effectiveness and tolerance of the medication named lubiprostone plus a large volume liquid laxative versus placebo which is a look alike medication that has no effect such as a sugar pill plus a large volume liquid laxative as a bowel cleaning preparation for colonoscopy to see… Read more about this study
- Who is it for?
- Ages 18 years and olderHealthy volunteers can take part
- Conditions the study is for
- Colonoscopy
- What is being tested?
- lubiprostone (Amitiza)
- Type of treatment
- Pill or oral medicine
- Could I receive a placebo?
- Yes, some participants may receive a placebo
- How many people
- 158 participants
- Where
- 3 sitesUnited States
- Study dates
- Mar 2008to Jul 2011
- Phase
- Phase 4
- Are there results?
- Yes, posted in the registrySummary in the doctors' view
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 years and older
- All sexes
- Healthy volunteers accepted
- Adult, Older adult
Who may be able to join
- Subject is at least 18 years old
- Subject is in good health
- Subject is undergoing a screening, surveillance or diagnostic colonoscopy
- Subject has a spontaneous bowel movement at least every 48 hours
Who cannot join
- Subject has renal insufficiency demonstrated by serum creatinine > 1.4mg/dL
- Subject has Type 1 diabetes
- Subject has past or present diagnosis of Congestive Heart Failure
- Subject has past or present diagnosis of inflammatory bowel disease
- Subject had previous colon resection
- Subject has a preexisting electrolyte abnormality
- Subject has more than 3 spontaneous bowel movements daily
Trial locations and contacts
3 sites in 1 country.
United States3 sites
Henry Ford Hospital
Detroit, Michigan, 48202
Henry Ford Health System
Novi, Michigan, 48377
Henry Ford Health System
West Bloomfield, Michigan, 48322
About this study
Official title: Lubiprostone Plus Polyethylene Glycol-electrolyte Solutionvs. Placebo Plus Polyethylene Glycol-electrolyte Solution for Outpatient Colonoscopy Preparation: A Randomized, Double-blind, Placebo-controlled Trial
The primary objective is to compare the effectiveness and tolerance of the medication named lubiprostone plus a large volume liquid laxative versus placebo which is a look alike medication that has no effect such as a sugar pill plus a large volume liquid laxative as a bowel cleaning preparation for colonoscopy to see the colon better during the colonoscopy to identify abnormal growths such as polyps or colon cancer.
Colonoscopy is considered the best way to screen for colon cancer screening because you can visualize the colon directly and remove or biopsy abnormal growths. The limiting step in the procedure is the quality of the colon preparation prior to the procedure. Many patients do not tolerate large volumes of liquid used to prepare the colon. The purpose of the study is to improve the quality of the prep by adding a pill laxative medication before starting the large volume laxative to better see the colon. The other aim of the study is to try to reduce the amount of of liquid laxative the patient has to drink by giving a pill laxative before starting the liquid laxative.
Read the detailed description
The study is a double blind placebo controlled study of lubiprostone in 4 doses vs look alike placebo in 4 doses before bowel preparation for outpatient screening, surveillance and diagnostic colonoscopy. Patients with severe underlying medical conditions were excluded. Patients with inflammatory bowel disease, frequent bowel movements and colonic resection were also excluded. Patients were randomized to one of two groups. The study was double blinded. The first group took lubiprostone 24 micrograms and the second group took look alike placebo in 4 divided doses right before starting the bowel prep with the last dose upon starting polyethylene glycol-electrolyte solution the evening before the colonoscopy.
All study patients were educated and instructed to observe for clear stool, which was defined as "watery consistency without any solid fecal material or dark liquid stools" before stopping the liquid bowel prep. Patients were instructed to return the unused PEG solution on the day of colonoscopy. After completing the preparation but before colonoscopy, patients were also required to fill a questionnaire to assess the tolerability of tablets and solution. This was measured on a 1-5 rating Likert scale (1) "Easy," 2) "Tolerable," 3) "Slightly Difficult," 4) "Extremely Difficult," and 5)"Unable to Finish" and was based on the patient's ability to swallow the liquid and each of 4 tablets. In addition, the pres- ence of symptoms of nausea, vomiting, abdominal pain, chest pain, dizziness, and bloating was evaluated.
The primary endpoints was the endoscopist's evaluation of the preparation quality. All colonoscopies were performed by 3 endoscopists (with 85% of the procedures performed by principal investigator of the study, A.L.S.). Endo- scopists evaluated the quality of the colonoscopy prep- aration based on the previously validated Ottawa bowel preparation scale.5 This scale rates 3 sections of colon, rectosigmoid, mid, and right colon, on a 5-point scale (0-4) and a global 3-point rating (0-2) for overall colonic fluid. The total score ranges from 0-14; score of 0 being perfect and score of 14 indicating solid stool in each colon segment and lot of fluid.The secondary endpoint was to determine any reduction in the amount of PEG consumed in the lubiprostone group compared with the placebo group.
- Conditions
- Colonoscopy
- Being tested
- lubiprostone (Amitiza), Placebo
- Keywords
- Routine screening colonoscopy, Colonoscopy Preparation, Amitiza, GoLYTELY, Pegylated Electrolytes, Preparation Solution, Colonoscopy Solution
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
lubiprostone (Amitiza)Drug
Also called Amitiza
24 mcg administered 4 times over the two days before the colonoscopy. 96 mcg total
PlaceboDrug
Also called Look alike placebo Amitiza
Amitiza Placebo
| Study group | Role | What they receive |
|---|---|---|
| Ingested 4 tablets of lubiprostone in divided doses + 1 gallon of polyethylene glycol | Active comparator | First dose of lubiprostone 24 micrograms or placebo was administered 2 nights before colonoscopy and subsequent doses at breakfast, lunch, and dinner on the day before the procedure. Patients were on a clear liquid diet on the day before the procedure and were instructed to initiate drinking PEG (immediately after the last dose of lubiprostone) at 6 PM the evening before the colonoscopy and continued drinking the solution until at least 2 bowel movements were clear yellow or green. All study patients were educated and instructed to observe for clear stool, which was defined as "watery consistency without any solid fecal material or dark liquid stools." Patients were instructed to return the unused PEG solution on the day of colonoscopy. After completing the preparation but before colonoscopy, patients were also required to fill a questionnaire to assess the tolerability of tablets and solution. Receives: Drug: lubiprostone (Amitiza) |
| Ingested 4 tablets of placebo in divided doses + 1 gallon of polyethylene glycol | Placebo comparator | First dose of look alike placebo was administered 2 nights before colonoscopy and subsequent doses at breakfast, lunch, and dinner on the day before the procedure. Patients were on a clear liquid diet on the day before the procedure and were instructed to initiate drinking PEG (immediately after the last dose of lubiprostone) at 6 PM the evening before the colonoscopy and continued drinking the solution until at least 2 bowel movements were clear yellow or green. All study patients were educated and instructed to observe for clear stool, which was defined as "watery consistency without any solid fecal material or dark liquid stools." Patients were instructed to return the unused PEG solution on the day of colonoscopy. After completing the preparation but before colonoscopy, patients were also required to fill a questionnaire to assess the tolerability of tablets and solution. Receives: Drug: Placebo |
What is being measured
The primary outcome is the main question the study is designed to answer.
Endoscopist Evaluation of Colon Cleanliness in the Lubiprostone Group vs the Placebo Group
Endoscopists evaluated the quality of the colonoscopy preparation based on Ottawa bowel preparation scale. . The total score ranges from 0-14; score of 0 being perfect and score of 14 indicating solid stool in each colon segment and lot of fluid. Before using the scale for this trial, the endoscopists participated in a calibration exercise that involved 20 patients to ensure that they concurred on their interpretation of the scale.
Measured: within 12 hours of completing bowel prep
Secondary outcomes (2)
Tolerability of the Colon Cleansing Group in the Lubiprostone Group vs the Placebo Group
After completing the colonoscopy prep patients were asked to assess tolerability of the prep using a 5 point Likert scale with 1 being easy and 5 being unable to complete the prep
Measured: done at the time of colonoscopy
Change in Volume of PEG From Beginning of Bowel Prep to That at Completion of the Colonoscopy Preparation in the Two Groups
Patients in the lubiprostone group and the placebo returned unused PEG after completing the prep for the colonoscopy. This was measured in liters and recorded.
Measured: amount of PEG at start of the study and that measured when the patient presented for their procedure.
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted28 Mar 2008 (estimated)
- Study startMar 2008
- Primary completionJul 2011
- Study completionJul 2011
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Posted resultsParticipant flow, outcome measures and adverse events reported by the sponsor.
- Publications (18)Papers the sponsor has linked to this study.
- Other trials for ColonoscopyStudies of the same condition, open and under way.
- More trials run by Henry Ford Health SystemThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase 4
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Quadruple blind
- Who is masked
- Participant, Care provider, Investigator, Outcomes assessor
- Enrolment
- 158 participants (actual)
Sponsor and investigators
- Lead sponsor
- Henry Ford Health System
- Sponsor type
- University, hospital or other
- Collaborators
- Takeda Pharmaceuticals North America, Inc.
- Responsible party
- Principal investigator, Ann L. Silverman, Henry Ford Health System
- Investigators
- Ann L Silverman, MD, Principal investigator, Henry Ford Health System
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT00645801
- Sponsor's protocol ID
- 07-024L
- Acronym
- PEG
- Status last verified
- May 2023
- First submitted
- 25 Mar 2008
- Last updated
- 1 Jun 2023
- Results posted
- Yes, on ClinicalTrials.gov
- Data monitoring committee
- No
- Individual data sharing
- No
Publications
Froehlich F, Wietlisbach V, Gonvers JJ, Burnand B, Vader JP. Impact of colonic cleansing on quality and diagnostic yield of colonoscopy: the European Panel of Appropriateness of Gastrointestinal Endoscopy European multicenter study. Gastrointest Endosc. 2005 Mar;61(3):378-84. doi: 10.1016/s0016-5107(04)02776-2.
PubMed 15758907Harewood GC, Sharma VK, de Garmo P. Impact of colonoscopy preparation quality on detection of suspected colonic neoplasia. Gastrointest Endosc. 2003 Jul;58(1):76-9. doi: 10.1067/mge.2003.294.
PubMed 12838225Afridi SA, Barthel JS, King PD, Pineda JJ, Marshall JB. Prospective, randomized trial comparing a new sodium phosphate-bisacodyl regimen with conventional PEG-ES lavage for outpatient colonoscopy preparation. Gastrointest Endosc. 1995 May;41(5):485-9. doi: 10.1016/s0016-5107(05)80008-2.
PubMed 7615228Johanson JF, Ueno R. Lubiprostone, a locally acting chloride channel activator, in adult patients with chronic constipation: a double-blind, placebo-controlled, dose-ranging study to evaluate efficacy and safety. Aliment Pharmacol Ther. 2007 Jun 1;25(11):1351-61. doi: 10.1111/j.1365-2036.2007.03320.x.
PubMed 17509103Camilleri M, Bharucha AE, Ueno R, Burton D, Thomforde GM, Baxter K, McKinzie S, Zinsmeister AR. Effect of a selective chloride channel activator, lubiprostone, on gastrointestinal transit, gastric sensory, and motor functions in healthy volunteers. Am J Physiol Gastrointest Liver Physiol. 2006 May;290(5):G942-7. doi: 10.1152/ajpgi.00264.2005.
PubMed 16603730Stengel JZ, Jones DP. Single-dose lubiprostone along with split-dose PEG solution without dietary restrictions for bowel cleansing prior to colonoscopy: a randomized, double-blind, placebo-controlled trial. Am J Gastroenterol. 2008 Sep;103(9):2224-30. doi: 10.1111/j.1572-0241.2008.02053.x. Epub 2008 Aug 5.
PubMed 18684185Grigg E, Schubert MC, Hall J, Rahhal F, Raina D, Sridhar S, Chamberlain SM. Lubiprostone used with polyethylene glycol in diabetic patients enhances colonoscopy preparation quality. World J Gastrointest Endosc. 2010 Jul 16;2(7):263-7. doi: 10.4253/wjge.v2.i7.263.
PubMed 21160617Park JS, Sohn CI, Hwang SJ, Choi HS, Park JH, Kim HJ, Park DI, Cho YK, Jeon WK, Kim BI. Quality and effect of single dose versus split dose of polyethylene glycol bowel preparation for early-morning colonoscopy. Endoscopy. 2007 Jul;39(7):616-9. doi: 10.1055/s-2007-966434.
PubMed 17611916Aoun E, Abdul-Baki H, Azar C, Mourad F, Barada K, Berro Z, Tarchichi M, Sharara AI. A randomized single-blind trial of split-dose PEG-electrolyte solution without dietary restriction compared with whole dose PEG-electrolyte solution with dietary restriction for colonoscopy preparation. Gastrointest Endosc. 2005 Aug;62(2):213-8. doi: 10.1016/s0016-5107(05)00371-8.
PubMed 16046981Marmo R, Rotondano G, Riccio G, Marone A, Bianco MA, Stroppa I, Caruso A, Pandolfo N, Sansone S, Gregorio E, D'Alvano G, Procaccio N, Capo P, Marmo C, Cipolletta L. Effective bowel cleansing before colonoscopy: a randomized study of split-dosage versus non-split dosage regimens of high-volume versus low-volume polyethylene glycol solutions. Gastrointest Endosc. 2010 Aug;72(2):313-20. doi: 10.1016/j.gie.2010.02.048. Epub 2010 Jun 19.
PubMed 20561621Unger RZ, Amstutz SP, Seo DH, Huffman M, Rex DK. Willingness to undergo split-dose bowel preparation for colonoscopy and compliance with split-dose instructions. Dig Dis Sci. 2010 Jul;55(7):2030-4. doi: 10.1007/s10620-009-1092-x. Epub 2010 Jan 16.
PubMed 20082216American Society of Anesthesiologists Committee. Practice guidelines for preoperative fasting and the use of pharmacologic agents to reduce the risk of pulmonary aspiration: application to healthy patients undergoing elective procedures: an updated report by the American Society of Anesthesiologists Committee on Standards and Practice Parameters. Anesthesiology. 2011 Mar;114(3):495-511. doi: 10.1097/ALN.0b013e3181fcbfd9. No abstract available.
PubMed 21307770Park SS, Sinn DH, Kim YH, Lim YJ, Sun Y, Lee JH, Kim JY, Chang DK, Son HJ, Rhee PL, Rhee JC, Kim JJ. Efficacy and tolerability of split-dose magnesium citrate: low-volume (2 liters) polyethylene glycol vs. single- or split-dose polyethylene glycol bowel preparation for morning colonoscopy. Am J Gastroenterol. 2010 Jun;105(6):1319-26. doi: 10.1038/ajg.2010.79. Epub 2010 May 18.
PubMed 20485282Abdul-Baki H, Hashash JG, Elhajj II, Azar C, El Zahabi L, Mourad FH, Barada KA, Sharara AI. A randomized, controlled, double-blind trial of the adjunct use of tegaserod in whole-dose or split-dose polyethylene glycol electrolyte solution for colonoscopy preparation. Gastrointest Endosc. 2008 Aug;68(2):294-300; quiz 334, 336. doi: 10.1016/j.gie.2008.01.044. Epub 2008 Jun 3.
PubMed 18511049Hookey LC, Depew WT, Vanner SJ. Combined low volume polyethylene glycol solution plus stimulant laxatives versus standard volume polyethylene glycol solution: a prospective, randomized study of colon cleansing before colonoscopy. Can J Gastroenterol. 2006 Feb;20(2):101-5. doi: 10.1155/2006/621367.
PubMed 16482236
Study at a glance
From the registry record, last updated by the sponsor on 1 Jun 2023. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Lubiprostone Plus Polyethylene Glycol-electrolyte Solutionvs. Placebo Plus Polyethylene Glycol-electrolyte Solution for Outpatient Colonoscopy Preparation: A Randomized, Double-blind, Placebo-controlled Trial
- ClinicalTrials.gov ID
- NCT00645801
- Acronym / sponsor ID
- PEG / 07-024L
- Conditions
- Colonoscopy
- Keywords
- Routine screening colonoscopy, Colonoscopy Preparation, Amitiza, GoLYTELY, Pegylated Electrolytes, Preparation Solution, Colonoscopy Solution
- Phase
- Phase 4
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 158 participants (actual)
- Lead sponsor
- Henry Ford Health SystemUniversity, hospital or other
- Collaborators
- Takeda Pharmaceuticals North America, Inc.
- Study start
- Mar 2008
- Primary completion
- Jul 2011 (actual)
- Study completion
- Jul 2011 (actual)
- First posted
- 28 Mar 2008 (estimated)
- Results
- Posted 1 Jun 2023
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
The primary objective is to compare the effectiveness and tolerance of the medication named lubiprostone plus a large volume liquid laxative versus placebo which is a look alike medication that has no effect such as a sugar pill plus a large volume liquid laxative as a bowel cleaning preparation for colonoscopy to see the colon better during the colonoscopy to identify abnormal growths such as polyps or colon cancer.
Colonoscopy is considered the best way to screen for colon cancer screening because you can visualize the colon directly and remove or biopsy abnormal growths. The limiting step in the procedure is the quality of the colon preparation prior to the procedure. Many patients do not tolerate large volumes of liquid used to prepare the colon. The purpose of the study is to improve the quality of the prep by adding a pill laxative medication before starting the large volume laxative to better see the colon. The other aim of the study is to try to reduce the amount of of liquid laxative the patient has to drink by giving a pill laxative before starting the liquid laxative.
Detailed description
The study is a double blind placebo controlled study of lubiprostone in 4 doses vs look alike placebo in 4 doses before bowel preparation for outpatient screening, surveillance and diagnostic colonoscopy. Patients with severe underlying medical conditions were excluded. Patients with inflammatory bowel disease, frequent bowel movements and colonic resection were also excluded. Patients were randomized to one of two groups. The study was double blinded. The first group took lubiprostone 24 micrograms and the second group took look alike placebo in 4 divided doses right before starting the bowel prep with the last dose upon starting polyethylene glycol-electrolyte solution the evening before the colonoscopy.
All study patients were educated and instructed to observe for clear stool, which was defined as "watery consistency without any solid fecal material or dark liquid stools" before stopping the liquid bowel prep. Patients were instructed to return the unused PEG solution on the day of colonoscopy. After completing the preparation but before colonoscopy, patients were also required to fill a questionnaire to assess the tolerability of tablets and solution. This was measured on a 1-5 rating Likert scale (1) "Easy," 2) "Tolerable," 3) "Slightly Difficult," 4) "Extremely Difficult," and 5)"Unable to Finish" and was based on the patient's ability to swallow the liquid and each of 4 tablets. In addition, the pres- ence of symptoms of nausea, vomiting, abdominal pain, chest pain, dizziness, and bloating was evaluated.
The primary endpoints was the endoscopist's evaluation of the preparation quality. All colonoscopies were performed by 3 endoscopists (with 85% of the procedures performed by principal investigator of the study, A.L.S.). Endo- scopists evaluated the quality of the colonoscopy prep- aration based on the previously validated Ottawa bowel preparation scale.5 This scale rates 3 sections of colon, rectosigmoid, mid, and right colon, on a 5-point scale (0-4) and a global 3-point rating (0-2) for overall colonic fluid. The total score ranges from 0-14; score of 0 being perfect and score of 14 indicating solid stool in each colon segment and lot of fluid.The secondary endpoint was to determine any reduction in the amount of PEG consumed in the lubiprostone group compared with the placebo group.
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Quadruple blind (participant, care provider, investigator, outcomes assessor)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| Ingested 4 tablets of lubiprostone in divided doses + 1 gallon of polyethylene glycol | Active comparator | Drug: lubiprostone (Amitiza)First dose of lubiprostone 24 micrograms or placebo was administered 2 nights before colonoscopy and subsequent doses at breakfast, lunch, and dinner on the day before the procedure. Patients were on a clear liquid diet on the day before the procedure and were instructed to initiate drinking PEG (immediately after the last dose of lubiprostone) at 6 PM the evening before the colonoscopy and continued drinking the solution until at least 2 bowel movements were clear yellow or green. All study patients were educated and instructed to observe for clear stool, which was defined as "watery consistency without any solid fecal material or dark liquid stools." Patients were instructed to return the unused PEG solution on the day of colonoscopy. After completing the preparation but before colonoscopy, patients were also required to fill a questionnaire to assess the tolerability of tablets and solution. |
| Ingested 4 tablets of placebo in divided doses + 1 gallon of polyethylene glycol | Placebo comparator | Drug: PlaceboFirst dose of look alike placebo was administered 2 nights before colonoscopy and subsequent doses at breakfast, lunch, and dinner on the day before the procedure. Patients were on a clear liquid diet on the day before the procedure and were instructed to initiate drinking PEG (immediately after the last dose of lubiprostone) at 6 PM the evening before the colonoscopy and continued drinking the solution until at least 2 bowel movements were clear yellow or green. All study patients were educated and instructed to observe for clear stool, which was defined as "watery consistency without any solid fecal material or dark liquid stools." Patients were instructed to return the unused PEG solution on the day of colonoscopy. After completing the preparation but before colonoscopy, patients were also required to fill a questionnaire to assess the tolerability of tablets and solution. |
Who may qualify
- Ages
- 18 years and older
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (4 listed)
- Subject is at least 18 years old
- Subject is in good health
- Subject is undergoing a screening, surveillance or diagnostic colonoscopy
- Subject has a spontaneous bowel movement at least every 48 hours
Key exclusion criteria (7 listed)
- Subject has renal insufficiency demonstrated by serum creatinine > 1.4mg/dL
- Subject has Type 1 diabetes
- Subject has past or present diagnosis of Congestive Heart Failure
- Subject has past or present diagnosis of inflammatory bowel disease
- Subject had previous colon resection
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| lubiprostone (Amitiza)Also: Amitiza24 mcg administered 4 times over the two days before the colonoscopy. 96 mcg total | Drug | Ingested 4 tablets of lubiprostone in divided doses + 1 gallon of polyethylene glycol |
| PlaceboAlso: Look alike placebo AmitizaAmitiza Placebo | Drug | Ingested 4 tablets of placebo in divided doses + 1 gallon of polyethylene glycol |
Primary outcome
Endoscopist Evaluation of Colon Cleanliness in the Lubiprostone Group vs the Placebo Group
Time frame: within 12 hours of completing bowel prep
Endoscopists evaluated the quality of the colonoscopy preparation based on Ottawa bowel preparation scale. . The total score ranges from 0-14; score of 0 being perfect and score of 14 indicating solid stool in each colon segment and lot of fluid. Before using the scale for this trial, the endoscopists participated in a calibration exercise that involved 20 patients to ensure that they concurred on their interpretation of the scale.
2 secondary outcomes
Tolerability of the Colon Cleansing Group in the Lubiprostone Group vs the Placebo Group
Time frame: done at the time of colonoscopy
Change in Volume of PEG From Beginning of Bowel Prep to That at Completion of the Colonoscopy Preparation in the Two Groups
Time frame: amount of PEG at start of the study and that measured when the patient presented for their procedure.
Results and safety
Loading the posted results from ClinicalTrials.gov…
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 1 Jun 2023.
- Posted resultsParticipant flow, baseline, all outcome measures and adverse events.
- Background: PubMed 15758907Froehlich F, Wietlisbach V, Gonvers JJ, Burnand B, Vader JP. Impact of colonic cleansing on quality and diagnostic yield of colonoscopy: the European Panel of Appropriateness of Gastrointestinal Endoscopy European multicenter study. Gastrointest Endosc. 2005 Mar;61(3):378-84. doi: 10.1016/s0016-5107(04)02776-2.
- Background: PubMed 12838225Harewood GC, Sharma VK, de Garmo P. Impact of colonoscopy preparation quality on detection of suspected colonic neoplasia. Gastrointest Endosc. 2003 Jul;58(1):76-9. doi: 10.1067/mge.2003.294.
- Background: PubMed 7615228Afridi SA, Barthel JS, King PD, Pineda JJ, Marshall JB. Prospective, randomized trial comparing a new sodium phosphate-bisacodyl regimen with conventional PEG-ES lavage for outpatient colonoscopy preparation. Gastrointest Endosc. 1995 May;41(5):485-9. doi: 10.1016/s0016-5107(05)80008-2.
- Background: PubMed 17509103Johanson JF, Ueno R. Lubiprostone, a locally acting chloride channel activator, in adult patients with chronic constipation: a double-blind, placebo-controlled, dose-ranging study to evaluate efficacy and safety. Aliment Pharmacol Ther. 2007 Jun 1;25(11):1351-61. doi: 10.1111/j.1365-2036.2007.03320.x.
- Background: PubMed 16603730Camilleri M, Bharucha AE, Ueno R, Burton D, Thomforde GM, Baxter K, McKinzie S, Zinsmeister AR. Effect of a selective chloride channel activator, lubiprostone, on gastrointestinal transit, gastric sensory, and motor functions in healthy volunteers. Am J Physiol Gastrointest Liver Physiol. 2006 May;290(5):G942-7. doi: 10.1152/ajpgi.00264.2005.
- Background: PubMed 18684185Stengel JZ, Jones DP. Single-dose lubiprostone along with split-dose PEG solution without dietary restrictions for bowel cleansing prior to colonoscopy: a randomized, double-blind, placebo-controlled trial. Am J Gastroenterol. 2008 Sep;103(9):2224-30. doi: 10.1111/j.1572-0241.2008.02053.x. Epub 2008 Aug 5.
- Background: PubMed 21160617Grigg E, Schubert MC, Hall J, Rahhal F, Raina D, Sridhar S, Chamberlain SM. Lubiprostone used with polyethylene glycol in diabetic patients enhances colonoscopy preparation quality. World J Gastrointest Endosc. 2010 Jul 16;2(7):263-7. doi: 10.4253/wjge.v2.i7.263.
- Background: PubMed 17611916Park JS, Sohn CI, Hwang SJ, Choi HS, Park JH, Kim HJ, Park DI, Cho YK, Jeon WK, Kim BI. Quality and effect of single dose versus split dose of polyethylene glycol bowel preparation for early-morning colonoscopy. Endoscopy. 2007 Jul;39(7):616-9. doi: 10.1055/s-2007-966434.
- Background: PubMed 16046981Aoun E, Abdul-Baki H, Azar C, Mourad F, Barada K, Berro Z, Tarchichi M, Sharara AI. A randomized single-blind trial of split-dose PEG-electrolyte solution without dietary restriction compared with whole dose PEG-electrolyte solution with dietary restriction for colonoscopy preparation. Gastrointest Endosc. 2005 Aug;62(2):213-8. doi: 10.1016/s0016-5107(05)00371-8.
- Background: PubMed 20561621Marmo R, Rotondano G, Riccio G, Marone A, Bianco MA, Stroppa I, Caruso A, Pandolfo N, Sansone S, Gregorio E, D'Alvano G, Procaccio N, Capo P, Marmo C, Cipolletta L. Effective bowel cleansing before colonoscopy: a randomized study of split-dosage versus non-split dosage regimens of high-volume versus low-volume polyethylene glycol solutions. Gastrointest Endosc. 2010 Aug;72(2):313-20. doi: 10.1016/j.gie.2010.02.048. Epub 2010 Jun 19.
- Background: PubMed 20082216Unger RZ, Amstutz SP, Seo DH, Huffman M, Rex DK. Willingness to undergo split-dose bowel preparation for colonoscopy and compliance with split-dose instructions. Dig Dis Sci. 2010 Jul;55(7):2030-4. doi: 10.1007/s10620-009-1092-x. Epub 2010 Jan 16.
- Background: PubMed 21307770American Society of Anesthesiologists Committee. Practice guidelines for preoperative fasting and the use of pharmacologic agents to reduce the risk of pulmonary aspiration: application to healthy patients undergoing elective procedures: an updated report by the American Society of Anesthesiologists Committee on Standards and Practice Parameters. Anesthesiology. 2011 Mar;114(3):495-511. doi: 10.1097/ALN.0b013e3181fcbfd9. No abstract available.
- Individual participant dataSharing planned: No
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Ann L Silverman, MD principal investigator
Henry Ford Health System
3 sites in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 4 study testing lubiprostone (Amitiza) in people with Colonoscopy, run by Henry Ford Health System at 3 sites in United States.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 4 inclusion and 7 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 1 Jun 2023. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 3 sites in United States. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
What does this phase mean?
Phase 4 studies take place after a treatment is approved, to learn more about its long-term benefits and risks in everyday use.
Not every study follows the same path, and some studies (observational studies, device studies) have no phase.
Are results available for this study?
Yes. Results are posted in the registry (first posted 1 Jun 2023). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Endoscopist Evaluation of Colon Cleanliness in the Lubiprostone Group vs the Placebo Group (time frame: within 12 hours of completing bowel prep). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT00645801, which also lists 18 linked publications.
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 1 Jun 2023.