Colo-rectal CancerNCT03816774
Effect of Adding Simethicone to Split-dose Polyethylene Glycol for Bowel Preparation in a Screening Colonoscopy Setting
A study testing PEG split-dose and simethicone in people with Colo-rectal Cancer and Colonic Neoplasms, run by Portuguese Oncology Institute, Coimbra at 1 site in Portugal.
Trial summary
Colonoscopy is currently accepted as the gold standard in screening, surveillance and prevention for colorectal cancer (CRC), and therefore, its quality is a major priority. The quality of colonoscopy is greatly dependent on the quality of the bowel preparation. Read more about this study
- Who is it for?
- Ages 50 to 74 yearsHealthy volunteers can take part
- Conditions the study is for
- Colo-rectal Cancer, Colonic Neoplasms
- What is being tested?
- PEG split-dose and simethicone
- Type of treatment
- Pill or oral medicine
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 412 participants
- Where
- 1 sitePortugal
- Study dates
- 15 Jun 2019to 17 Sep 2022
- Phase
- Interventional
- Are there results?
- None posted in the registry
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 50 to 74 years
- All sexes
- Healthy volunteers accepted
- Adult, Older adult
Who may be able to join
- consecutive patients scheduled for colonoscopy by nationwide CRC screening program after a positive faecal immunochemical test,
- signed informed consent.
Who cannot join
- previous diagnosis of CRC,
- presence of known genetic susceptibility syndromes related with CRC,
- personal history of inflammatory bowel disease,
- presence of gastrointestinal complaints (significant changes in gastrointestinal transit in the last 6 months or evidence of gastrointestinal bleeding),
- a normal colonoscopy in the last 10 years and a normal flexible sigmoidoscopy in the last 5 years,
- known or suspected gastrointestinal obstruction or perforation, toxic megacolon, major colonic resection,
- pregnant or at risk of becoming pregnant and lactating women,
- known or suspected hypersensitivity to the active or other ingredients.
Trial locations and contacts
1 site in 1 country.
About this study
Official title: Effect of Adding Simethicone to a Split Regimen of Polyethylene Glycol for Bowel Preparation in a Colorectal Cancer Screening Colonoscopy Setting: an Endoscopist-blinded Randomized Controlled Trial
Colonoscopy is currently accepted as the gold standard in screening, surveillance and prevention for colorectal cancer (CRC), and therefore, its quality is a major priority.
The quality of colonoscopy is greatly dependent on the quality of the bowel preparation. Standard bowel cleansing includes a low-fibre diet on the day preceding the exam and a split regimen of 4 litres of polyethylene glycol (PEG) solution.
Read more
In order to improve bowel cleansing some additional measures are available. Simethicone is an inexpensive and safe antifoaming agent that reduces the surface tension of air bubbles, theoretically presenting several benefits such as increased tolerability to the preparation, thereby improving the quality of the preparation and, secondly, adenoma detection (ADR) and cecal intubation rates (CIR). However, its role remains controversial, with some publications supporting its administration and others failing to demonstrate clear benefits.
The main aim of this study is to assess if addition of simethicone to a split-dose cleansing regimen of 4 litres of PEG improves adequate bowel preparation rate.
Read the detailed description
- Study type: Endoscopist-blinded randomized controlled trial i. Prospective inclusion of patients scheduled for a colonoscopy by nationwide CRC screening program after a positive faecal immunochemical test. ii. Randomization by computer generated tables. iii. Allocation concealment by sealed, opaque envelopes. iv. Endoscopist-blinded: endoscopist blinded to the group allocation. v. Patient informed about its bowel cleansing regimen.
- Selection participant method: i. Inclusion by invitation of patients aged between 50 and 74 years, inclusive, scheduled for colonoscopy by nationwide CRC screening program after a positive faecal immunochemical test. ii. Exclusion criteria for nationwide CRC screening program: previous diagnosis of CRC, presence of known genetic susceptibility syndromes related with CRC, personal history of inflammatory bowel disease, presence of gastrointestinal complaints (significant changes in gastrointestinal transit in the last 6 months or evidence of gastrointestinal bleeding), a normal colonoscopy in the last 10 years and a normal flexible sigmoidoscopy in the last 5 years. Exclusion criteria of this study also include: known or suspected gastrointestinal obstruction or perforation, toxic megacolon, major colonic resection, pregnant or at risk of becoming pregnant and lactating women, known or suspected hypersensitivity to the active or other ingredients.
- Sample size: i. 412 (2 groups of 206 patients). ii. To improve adequate bowel preparation rate (primary outcome) from 85% (value from the investigator's own database) to 95% (target standard suggested by ESGE) and assuming a normal distribution and a power of 90% (α=0.05), the calculated sample size of each of the 2 groups was 188; allowing for a 10% dropout rate, the sample size is 206 per group (412 patients overall). Adequate bowel preparation is defined as total. Boston Bowel Preparation Scale ≥6 and ≥2 in each segment. The chosen scale is the most systematically validated and appropriate for the clinical setting.
- Procedures and data collection methods: Form sheets filled by the endoscopist about intraprocedural measures and by the nurse about patient compliance and tolerability to the prescribed cleansing regimen.
- Analysed variables: i. Primary outcome: adequate bowel preparation rate. ii. Secondary outcomes: ADR, CIR, compliance and tolerability related to the bowel cleansing regimen. iii. Patient characteristics and other variables: age, gender, degree of mucosal bubble reported by a comprehensive scoring used by previous studies (grade 0: no bubbles; 1: minimal or occasional bubbles (must be actively sought); 2: moderate or obviously present; 3: severe or so many bubbles that vision is obscured), withdrawal time, polyp detection rate and complications rate.
- Statistical analysis: i. Performed using statistical software IBM SPSS Statistics, Version 25.0. Armonk, NY: IBM Corp. ii. Continuous variables are reported as mean and standard deviation or median and interquartile range, if they have normal or not normal distribution, respectively; categorical variables as absolute and relative frequency. iii. Continuous variables are compared between two groups using Student's T test if they have a normal distribution and homogeneity of variance or Mann-Whitney U if these conditions are not met. Categorical variables are compared using Pearson's X2 test or Fisher test. iv. All hypotheses are two-tailed and a P-value<0.05 is considered statistically significant.
- Conditions
- Colo-rectal Cancer, Colonic Neoplasms
- Being tested
- PEG split-dose and simethicone
- Keywords
- screening colonoscopy, colo-rectal cancer, simethicone, split-dose polyethylene glycol, adequate bowel preparation
- Medical subject headings
- Colonic Neoplasms
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
PEG split-dose and simethiconeDrug
Also called Aero-OM
Patients in active comparator arm are instructed to take 250mg simethicone pill 15 minutes before PEG dose on the previous evening plus 250mg simethicone pill 15 minutes before PEG dose ending 3 hours before colonoscopy
| Study group | Role | What they receive |
|---|---|---|
| PEG split-dose | No intervention | Group A: PEG split dose ending 3 hours before colonoscopy |
| PEG split-dose and simethicone | Active comparator | Group B: 250mg simethicone pill 15 minutes before PEG dose on the previous evening plus 250mg simethicone pill 15 minutes before PEG dose ending 3 hours before colonoscopy Receives: Drug: PEG split-dose and simethicone |
What is being measured
The primary outcome is the main question the study is designed to answer.
Adequate bowel preparation rate
Total BBPS ≥6 and ≥2 in each segment (ascendent, transverse, descendent), presented as percentage.
Measured: 1 day (during colonoscopy)
Secondary outcomes (4)
Adenoma detection rate
Colonoscopies with at least one adenoma identified, presented as percentage.
Measured: Within 30 days from colonoscopy date
Cecal intubation rate
Photo documentation of the cecum is a mark for effective total colonoscopy, presented as percentage.
Measured: 1 day (during colonoscopy)
Compliance to the bowel cleansing regimen
Patient assessment, by written questionnaire, of compliance of the bowel cleansing regimen.
Measured: 1 day (immediately before colonoscopy)
Tolerability to the bowel cleansing regimen:questionnaire
Patient assessment, by written questionnaire, of side effects of the bowel cleansing regimen.
Measured: 1 day (immediately before colonoscopy)
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted25 Jan 2019
- Study start15 Jun 2019
- Primary completion17 Sep 2022
- Study completion17 Sep 2022
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (14)Papers the sponsor has linked to this study.
- Other trials for Colo-rectal CancerStudies of the same condition, open and under way.
- 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 N/A
- Primary purpose
- Diagnosis
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Single blind
- Who is masked
- Care provider
- Enrolment
- 412 participants (actual)
Sponsor and investigators
- Lead sponsor
- Portuguese Oncology Institute, Coimbra
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Mafalda Cainé João, Portuguese Oncology Institute, Coimbra
- Investigators
- Miguel Areia, PhD, Study director, Portuguese Oncology Institute, Coimbra
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT03816774
- Sponsor's protocol ID
- PortugueseOIC 003
- Status last verified
- Oct 2022
- First submitted
- 18 Jan 2019
- Last updated
- 5 Oct 2022
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- No
Publications
Hassan C, Quintero E, Dumonceau JM, Regula J, Brandao C, Chaussade S, Dekker E, Dinis-Ribeiro M, Ferlitsch M, Gimeno-Garcia A, Hazewinkel Y, Jover R, Kalager M, Loberg M, Pox C, Rembacken B, Lieberman D; European Society of Gastrointestinal Endoscopy. Post-polypectomy colonoscopy surveillance: European Society of Gastrointestinal Endoscopy (ESGE) Guideline. Endoscopy. 2013 Oct;45(10):842-51. doi: 10.1055/s-0033-1344548. Epub 2013 Sep 12.
PubMed 24030244Hassan C, Bretthauer M, Kaminski MF, Polkowski M, Rembacken B, Saunders B, Benamouzig R, Holme O, Green S, Kuiper T, Marmo R, Omar M, Petruzziello L, Spada C, Zullo A, Dumonceau JM; European Society of Gastrointestinal Endoscopy. Bowel preparation for colonoscopy: European Society of Gastrointestinal Endoscopy (ESGE) guideline. Endoscopy. 2013;45(2):142-50. doi: 10.1055/s-0032-1326186. Epub 2013 Jan 18.
PubMed 23335011Kaminski MF, Thomas-Gibson S, Bugajski M, Bretthauer M, Rees CJ, Dekker E, Hoff G, Jover R, Suchanek S, Ferlitsch M, Anderson J, Roesch T, Hultcranz R, Racz I, Kuipers EJ, Garborg K, East JE, Rupinski M, Seip B, Bennett C, Senore C, Minozzi S, Bisschops R, Domagk D, Valori R, Spada C, Hassan C, Dinis-Ribeiro M, Rutter MD. Performance measures for lower gastrointestinal endoscopy: a European Society of Gastrointestinal Endoscopy (ESGE) quality improvement initiative. United European Gastroenterol J. 2017 Apr;5(3):309-334. doi: 10.1177/2050640617700014. Epub 2017 Mar 16.
PubMed 28507745Parmar R, Martel M, Rostom A, Barkun AN. Validated Scales for Colon Cleansing: A Systematic Review. Am J Gastroenterol. 2016 Feb;111(2):197-204; quiz 205. doi: 10.1038/ajg.2015.417. Epub 2016 Jan 19.
PubMed 26782820Wu L, Cao Y, Liao C, Huang J, Gao F. Systematic review and meta-analysis of randomized controlled trials of Simethicone for gastrointestinal endoscopic visibility. Scand J Gastroenterol. 2011 Feb;46(2):227-35. doi: 10.3109/00365521.2010.525714. Epub 2010 Oct 26.
PubMed 20977386Matro R, Tupchong K, Daskalakis C, Gordon V, Katz L, Kastenberg D. The effect on colon visualization during colonoscopy of the addition of simethicone to polyethylene glycol-electrolyte solution: a randomized single-blind study. Clin Transl Gastroenterol. 2012 Nov 29;3(11):e26. doi: 10.1038/ctg.2012.16.
PubMed 23238113de Leone A, Tamayo D, Fiori G, Ravizza D, Trovato C, De Roberto G, Fazzini L, Dal Fante M, Crosta C. Same-day 2-L PEG-citrate-simethicone plus bisacodyl vs split 4-L PEG: Bowel cleansing for late-morning colonoscopy. World J Gastrointest Endosc. 2013 Sep 16;5(9):433-9. doi: 10.4253/wjge.v5.i9.433.
PubMed 24044042Yoo IK, Jeen YT, Kang SH, Lee JH, Kim SH, Lee JM, Choi HS, Kim ES, Keum B, Chun HJ, Lee HS, Kim CD. Improving of bowel cleansing effect for polyethylene glycol with ascorbic acid using simethicone: A randomized controlled trial. Medicine (Baltimore). 2016 Jul;95(28):e4163. doi: 10.1097/MD.0000000000004163.
PubMed 27428209Yeh JH, Hsu MH, Tseng CM, Chen TH, Huang RY, Lee CT, Lin CW, Wang WL. The benefit of adding oral simethicone in bowel preparation regimen for the detection of colon adenoma: A systematic review and meta-analysis. J Gastroenterol Hepatol. 2019 May;34(5):830-836. doi: 10.1111/jgh.14508. Epub 2018 Nov 4.
PubMed 30311262Zhang S, Zheng D, Wang J, Wu J, Lei P, Luo Q, Wang L, Zhang B, Wang H, Cui Y, Chen M. Simethicone improves bowel cleansing with low-volume polyethylene glycol: a multicenter randomized trial. Endoscopy. 2018 Apr;50(4):412-422. doi: 10.1055/s-0043-121337. Epub 2017 Nov 13.
PubMed 29132175Pan P, Zhao SB, Li BH, Meng QQ, Yao J, Wang D, Li ZS, Bai Y. Effect of supplemental simethicone for bowel preparation on adenoma detection during colonoscopy: A meta-analysis of randomized controlled trials. J Gastroenterol Hepatol. 2019 Feb;34(2):314-320. doi: 10.1111/jgh.14401. Epub 2018 Aug 27.
PubMed 30069899Bai Y, Fang J, Zhao SB, Wang D, Li YQ, Shi RH, Sun ZQ, Sun MJ, Ji F, Si JM, Li ZS. Impact of preprocedure simethicone on adenoma detection rate during colonoscopy: a multicenter, endoscopist-blinded randomized controlled trial. Endoscopy. 2018 Feb;50(2):128-136. doi: 10.1055/s-0043-119213. Epub 2017 Oct 6.
PubMed 28985630Despacho n.o 8254/2017. Diário da República, 2.a série - N.o 183 - 21 de setembro de 2017. 2017;20788-9.
Lazzaroni M, Petrillo M, Desideri S, Bianchi Porro G. Efficacy and tolerability of polyethylene glycol-electrolyte lavage solution with and without simethicone in the preparation of patients with inflammatory bowel disease for colonoscopy. Aliment Pharmacol Ther. 1993 Dec;7(6):655-9. doi: 10.1111/j.1365-2036.1993.tb00148.x.
PubMed 8161673
Study at a glance
From the registry record, last updated by the sponsor on 5 Oct 2022. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Effect of Adding Simethicone to a Split Regimen of Polyethylene Glycol for Bowel Preparation in a Colorectal Cancer Screening Colonoscopy Setting: an Endoscopist-blinded Randomized Controlled Trial
- ClinicalTrials.gov ID
- NCT03816774
- Acronym / sponsor ID
- PortugueseOIC 003
- Conditions
- Colo-rectal Cancer, Colonic Neoplasms
- Keywords
- screening colonoscopy, colo-rectal cancer, simethicone, split-dose polyethylene glycol, adequate bowel preparation
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 412 participants (actual)
- Lead sponsor
- Portuguese Oncology Institute, CoimbraUniversity, hospital or other
- Study start
- 15 Jun 2019 (actual)
- Primary completion
- 17 Sep 2022 (actual)
- Study completion
- 17 Sep 2022 (actual)
- First posted
- 25 Jan 2019 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
Colonoscopy is currently accepted as the gold standard in screening, surveillance and prevention for colorectal cancer (CRC), and therefore, its quality is a major priority.
The quality of colonoscopy is greatly dependent on the quality of the bowel preparation. Standard bowel cleansing includes a low-fibre diet on the day preceding the exam and a split regimen of 4 litres of polyethylene glycol (PEG) solution.
In order to improve bowel cleansing some additional measures are available. Simethicone is an inexpensive and safe antifoaming agent that reduces the surface tension of air bubbles, theoretically presenting several benefits such as increased tolerability to the preparation, thereby improving the quality of the preparation and, secondly, adenoma detection (ADR) and cecal intubation rates (CIR). However, its role remains controversial, with some publications supporting its administration and others failing to demonstrate clear benefits.
The main aim of this study is to assess if addition of simethicone to a split-dose cleansing regimen of 4 litres of PEG improves adequate bowel preparation rate.
Detailed description
- Study type: Endoscopist-blinded randomized controlled trial i. Prospective inclusion of patients scheduled for a colonoscopy by nationwide CRC screening program after a positive faecal immunochemical test. ii. Randomization by computer generated tables. iii. Allocation concealment by sealed, opaque envelopes. iv. Endoscopist-blinded: endoscopist blinded to the group allocation. v. Patient informed about its bowel cleansing regimen.
- Selection participant method: i. Inclusion by invitation of patients aged between 50 and 74 years, inclusive, scheduled for colonoscopy by nationwide CRC screening program after a positive faecal immunochemical test. ii. Exclusion criteria for nationwide CRC screening program: previous diagnosis of CRC, presence of known genetic susceptibility syndromes related with CRC, personal history of inflammatory bowel disease, presence of gastrointestinal complaints (significant changes in gastrointestinal transit in the last 6 months or evidence of gastrointestinal bleeding), a normal colonoscopy in the last 10 years and a normal flexible sigmoidoscopy in the last 5 years. Exclusion criteria of this study also include: known or suspected gastrointestinal obstruction or perforation, toxic megacolon, major colonic resection, pregnant or at risk of becoming pregnant and lactating women, known or suspected hypersensitivity to the active or other ingredients.
- Sample size: i. 412 (2 groups of 206 patients). ii. To improve adequate bowel preparation rate (primary outcome) from 85% (value from the investigator's own database) to 95% (target standard suggested by ESGE) and assuming a normal distribution and a power of 90% (α=0.05), the calculated sample size of each of the 2 groups was 188; allowing for a 10% dropout rate, the sample size is 206 per group (412 patients overall). Adequate bowel preparation is defined as total. Boston Bowel Preparation Scale ≥6 and ≥2 in each segment. The chosen scale is the most systematically validated and appropriate for the clinical setting.
- Procedures and data collection methods: Form sheets filled by the endoscopist about intraprocedural measures and by the nurse about patient compliance and tolerability to the prescribed cleansing regimen.
- Analysed variables: i. Primary outcome: adequate bowel preparation rate. ii. Secondary outcomes: ADR, CIR, compliance and tolerability related to the bowel cleansing regimen. iii. Patient characteristics and other variables: age, gender, degree of mucosal bubble reported by a comprehensive scoring used by previous studies (grade 0: no bubbles; 1: minimal or occasional bubbles (must be actively sought); 2: moderate or obviously present; 3: severe or so many bubbles that vision is obscured), withdrawal time, polyp detection rate and complications rate.
- Statistical analysis: i. Performed using statistical software IBM SPSS Statistics, Version 25.0. Armonk, NY: IBM Corp. ii. Continuous variables are reported as mean and standard deviation or median and interquartile range, if they have normal or not normal distribution, respectively; categorical variables as absolute and relative frequency. iii. Continuous variables are compared between two groups using Student's T test if they have a normal distribution and homogeneity of variance or Mann-Whitney U if these conditions are not met. Categorical variables are compared using Pearson's X2 test or Fisher test. iv. All hypotheses are two-tailed and a P-value<0.05 is considered statistically significant.
Study design
- Primary purpose
- Diagnosis
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Single blind (care provider)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| PEG split-dose | No intervention | –Group A: PEG split dose ending 3 hours before colonoscopy |
| PEG split-dose and simethicone | Active comparator | Drug: PEG split-dose and simethiconeGroup B: 250mg simethicone pill 15 minutes before PEG dose on the previous evening plus 250mg simethicone pill 15 minutes before PEG dose ending 3 hours before colonoscopy |
Who may qualify
- Ages
- 50 to 74 years
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (2 listed)
- consecutive patients scheduled for colonoscopy by nationwide CRC screening program after a positive faecal immunochemical test,
- signed informed consent.
Key exclusion criteria (8 listed)
- previous diagnosis of CRC,
- presence of known genetic susceptibility syndromes related with CRC,
- personal history of inflammatory bowel disease,
- presence of gastrointestinal complaints (significant changes in gastrointestinal transit in the last 6 months or evidence of gastrointestinal bleeding),
- a normal colonoscopy in the last 10 years and a normal flexible sigmoidoscopy in the last 5 years,
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 |
|---|---|---|
| PEG split-dose and simethiconeAlso: Aero-OMPatients in active comparator arm are instructed to take 250mg simethicone pill 15 minutes before PEG dose on the previous evening plus 250mg simethicone pill 15 minutes before PEG dose ending 3 hours before colonoscopy | Drug | PEG split-dose and simethicone |
Primary outcome
Adequate bowel preparation rate
Time frame: 1 day (during colonoscopy)
Total BBPS ≥6 and ≥2 in each segment (ascendent, transverse, descendent), presented as percentage.
4 secondary outcomes
Adenoma detection rate
Time frame: Within 30 days from colonoscopy date
Cecal intubation rate
Time frame: 1 day (during colonoscopy)
Compliance to the bowel cleansing regimen
Time frame: 1 day (immediately before colonoscopy)
Tolerability to the bowel cleansing regimen:questionnaire
Time frame: 1 day (immediately before colonoscopy)
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 5 Oct 2022.
- Background: PubMed 24030244Hassan C, Quintero E, Dumonceau JM, Regula J, Brandao C, Chaussade S, Dekker E, Dinis-Ribeiro M, Ferlitsch M, Gimeno-Garcia A, Hazewinkel Y, Jover R, Kalager M, Loberg M, Pox C, Rembacken B, Lieberman D; European Society of Gastrointestinal Endoscopy. Post-polypectomy colonoscopy surveillance: European Society of Gastrointestinal Endoscopy (ESGE) Guideline. Endoscopy. 2013 Oct;45(10):842-51. doi: 10.1055/s-0033-1344548. Epub 2013 Sep 12.
- Background: PubMed 23335011Hassan C, Bretthauer M, Kaminski MF, Polkowski M, Rembacken B, Saunders B, Benamouzig R, Holme O, Green S, Kuiper T, Marmo R, Omar M, Petruzziello L, Spada C, Zullo A, Dumonceau JM; European Society of Gastrointestinal Endoscopy. Bowel preparation for colonoscopy: European Society of Gastrointestinal Endoscopy (ESGE) guideline. Endoscopy. 2013;45(2):142-50. doi: 10.1055/s-0032-1326186. Epub 2013 Jan 18.
- Background: PubMed 28507745Kaminski MF, Thomas-Gibson S, Bugajski M, Bretthauer M, Rees CJ, Dekker E, Hoff G, Jover R, Suchanek S, Ferlitsch M, Anderson J, Roesch T, Hultcranz R, Racz I, Kuipers EJ, Garborg K, East JE, Rupinski M, Seip B, Bennett C, Senore C, Minozzi S, Bisschops R, Domagk D, Valori R, Spada C, Hassan C, Dinis-Ribeiro M, Rutter MD. Performance measures for lower gastrointestinal endoscopy: a European Society of Gastrointestinal Endoscopy (ESGE) quality improvement initiative. United European Gastroenterol J. 2017 Apr;5(3):309-334. doi: 10.1177/2050640617700014. Epub 2017 Mar 16.
- Background: PubMed 26782820Parmar R, Martel M, Rostom A, Barkun AN. Validated Scales for Colon Cleansing: A Systematic Review. Am J Gastroenterol. 2016 Feb;111(2):197-204; quiz 205. doi: 10.1038/ajg.2015.417. Epub 2016 Jan 19.
- Background: PubMed 20977386Wu L, Cao Y, Liao C, Huang J, Gao F. Systematic review and meta-analysis of randomized controlled trials of Simethicone for gastrointestinal endoscopic visibility. Scand J Gastroenterol. 2011 Feb;46(2):227-35. doi: 10.3109/00365521.2010.525714. Epub 2010 Oct 26.
- Background: PubMed 23238113Matro R, Tupchong K, Daskalakis C, Gordon V, Katz L, Kastenberg D. The effect on colon visualization during colonoscopy of the addition of simethicone to polyethylene glycol-electrolyte solution: a randomized single-blind study. Clin Transl Gastroenterol. 2012 Nov 29;3(11):e26. doi: 10.1038/ctg.2012.16.
- Background: PubMed 24044042de Leone A, Tamayo D, Fiori G, Ravizza D, Trovato C, De Roberto G, Fazzini L, Dal Fante M, Crosta C. Same-day 2-L PEG-citrate-simethicone plus bisacodyl vs split 4-L PEG: Bowel cleansing for late-morning colonoscopy. World J Gastrointest Endosc. 2013 Sep 16;5(9):433-9. doi: 10.4253/wjge.v5.i9.433.
- Background: PubMed 27428209Yoo IK, Jeen YT, Kang SH, Lee JH, Kim SH, Lee JM, Choi HS, Kim ES, Keum B, Chun HJ, Lee HS, Kim CD. Improving of bowel cleansing effect for polyethylene glycol with ascorbic acid using simethicone: A randomized controlled trial. Medicine (Baltimore). 2016 Jul;95(28):e4163. doi: 10.1097/MD.0000000000004163.
- Background: PubMed 30311262Yeh JH, Hsu MH, Tseng CM, Chen TH, Huang RY, Lee CT, Lin CW, Wang WL. The benefit of adding oral simethicone in bowel preparation regimen for the detection of colon adenoma: A systematic review and meta-analysis. J Gastroenterol Hepatol. 2019 May;34(5):830-836. doi: 10.1111/jgh.14508. Epub 2018 Nov 4.
- Background: PubMed 29132175Zhang S, Zheng D, Wang J, Wu J, Lei P, Luo Q, Wang L, Zhang B, Wang H, Cui Y, Chen M. Simethicone improves bowel cleansing with low-volume polyethylene glycol: a multicenter randomized trial. Endoscopy. 2018 Apr;50(4):412-422. doi: 10.1055/s-0043-121337. Epub 2017 Nov 13.
- Background: PubMed 30069899Pan P, Zhao SB, Li BH, Meng QQ, Yao J, Wang D, Li ZS, Bai Y. Effect of supplemental simethicone for bowel preparation on adenoma detection during colonoscopy: A meta-analysis of randomized controlled trials. J Gastroenterol Hepatol. 2019 Feb;34(2):314-320. doi: 10.1111/jgh.14401. Epub 2018 Aug 27.
- Background: PubMed 28985630Bai Y, Fang J, Zhao SB, Wang D, Li YQ, Shi RH, Sun ZQ, Sun MJ, Ji F, Si JM, Li ZS. Impact of preprocedure simethicone on adenoma detection rate during colonoscopy: a multicenter, endoscopist-blinded randomized controlled trial. Endoscopy. 2018 Feb;50(2):128-136. doi: 10.1055/s-0043-119213. Epub 2017 Oct 6.
- Individual participant dataSharing planned: No
Related trials for Colo-rectal Cancer
RecruitingPhase 1
A Study to Learn About the Study Medicine Called PF-08032562 in People With Advanced or Metastatic Solid Tumors
Advanced Breast Cancer, Metastatic Breast Cancer (HR+/ HER2-)
RecruitingObservational study
Evaluation for NCI Surgery Branch Clinical Research Protocols
Synovial Cell Cancer, Melanoma
RecruitingObservational study
Myopenia and Mechanisms of Chemotherapy Toxicity in Older Adults With Colorectal Cancer
Colorectal Cancer, Sarcopenia
Not yet recruiting
Mind-Body Interventions for the Improvement of Quality of Life, Stress, and Sleep Quality Among Survivors of Breast, Prostate, Endometrial, or Colorectal Cancer
Breast Cancer Stage I, Colorectal Cancer
RecruitingPhase 2
FOLFIRI and Bevacizumab With or Without Pelareorep for Second-Line Treatment of Metastatic RAS-Mutated, Microsatellite-Stable Colorectal Cancer
Ras-mutated Metastatic Colorectal Cancer, mCRC
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.
Miguel Areia, PhD study director
Portuguese Oncology Institute, Coimbra
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing PEG split-dose and simethicone in people with Colo-rectal Cancer and Colonic Neoplasms, run by Portuguese Oncology Institute, Coimbra at 1 site in Portugal.
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 2 inclusion and 8 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 5 Oct 2022. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in Portugal. 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. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
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?
Adequate bowel preparation rate (time frame: 1 day (during colonoscopy)). 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 NCT03816774, which also lists 14 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 5 Oct 2022.