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Clinical Trial Details — Status: Completed

Administrative data

NCT number NCT04759885
Other study ID # Mannitol_03-2018
Secondary ID 2019-002856-18
Status Completed
Phase Phase 2/Phase 3
First received
Last updated
Start date June 18, 2020
Est. completion date July 16, 2021

Study information

Verified date July 2022
Source NTC srl
Contact n/a
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

The purpose of this dose finding/comparative efficacy study is to first single out the most appropriate dose of mannitol for bowel preparation (phase II) and, subsequently, demonstrate the non-inferiority of the efficacy of single dose mannitol vs standard split 2L PEG ASC (Moviprep®) (phase III) in bowel preparation for colonoscopy .


Description:

Study Start and Study Completion dates relative to the Phase II/III are reported here: Phase II (Patients n. 183) - Date of first enrolment: 22 June 2020 - Date LPLV: 12 November 2020 Phase III (Patients n. 703) - Date of first enrolment: 2 March 2021 - Date LPLV: 16 July 2021 Date on which the study was entered in the EudraCT database: 13 October 2020


Recruitment information / eligibility

Status Completed
Enrollment 886
Est. completion date July 16, 2021
Est. primary completion date July 16, 2021
Accepts healthy volunteers No
Gender All
Age group 18 Years and older
Eligibility Inclusion Criteria: 1. Ability of patient to consent and provide signed written informed consent 2. Age = 18 years 3. Males and females scheduled for elective (screening, surveillance or diagnostic) colonoscopy to be prepared and performed according to the European Society of Gastrointestinal Endoscopy (ESGE) Guideline 4. Patients willing and able to complete the entire study and to comply with instructions Exclusion Criteria: 1. Pregnancy or breastfeeding. Females of childbearing potential must have a negative pregnancy test at Visit 2 and must practice one of the following methods of birth control throughout the study period (unless postmenopausal or surgically sterile, or whose sole sexual partner has had a successful vasectomy): oral, implantable, or injectable contraceptives (for a minimum of three months before study entry) in combination with a condom; intrauterine device in combination with a condom; double barrier method (condom and occlusive cap with spermicidal foam/gel/film/cream/suppository). 2. Severe renal failure: glomerular filtration rate (eGFR) < 30 ml/min/1.73 m2 estimated by means of simplified MDRD equation. 3. Severe heart failure: NYHA Class III-IV. 4. Severe anaemia (Hb = 8 g/dl). 5. Severe acute and chronically active Inflammatory Bowel Disease; patients in clinical remission (Crohn's Disease Activity Index - CDAI < 150 for Crohn Disease and Partial Mayo Score = 2 for Ulcerative Colitis) are allowed. 6. Chronic liver disease Child-Pugh class B or C. 7. Electrolyte disturbances (Na, Cl, K, Ca or P out of normal ranges). 8. Recent (< 6 months) symptomatic acute ischemic heart disease. 9. History of significant gastrointestinal surgeries, including colon resection, sub-total colectomy, abdominoperineal resection, de-functioning colostomy or ileostomy, Hartmann's procedure and other surgeries involving the structure and function of the colon. 10. Use of laxatives, colon motility altering drugs and/or other substances (e.g. simethicone) that can affect bowel cleansing or visibility during colonoscopy within 24 hours prior to colonoscopy. 11. Suspected bowel obstruction or perforation. 12. Indication for partial colonoscopy. 13. Patients who have received an investigational drug or therapy within 5 half-lives of the first visit. 14. Patients previously screened for participation in this study. 15. Hypersensitivity to the active ingredients or to any of the excipients of the study drugs. 16. Contraindication to Moviprep® (only for phase III).

Study Design


Related Conditions & MeSH terms


Intervention

Drug:
Phase II: NTC015 low dose
Participants should self administer the preparation within 30 minutes and drink clear liquid according to local practice at the centre to prevent dehydration
Phase II: NTC015 medium dose
Participants should self administer the preparation within 30 minutes and drink clear liquid according to local practice at the centre to prevent dehydration
Phase II: NTC015 high dose
Participants should self administer the preparation within 60 minutes and drink clear liquid according to local practice at the centre to prevent dehydration
Phase III: NTC015 selected dose
Participants should self administer the preparation within 30 minutes and drink clear liquid according to local practice at the centre to prevent dehydration
Phase III: Polyethylene glycol plus ascorbate solution (2L PEG ASC)
The instructions for product administration are followed according to the Summary of Product Characteristics. One treatment consists of two litres of Moviprep® taken according to split-dose regimen. The first litre of Moviprep® is prepared by dissolving one sachet A and one sachet B together in water to make one litre of solution. The reconstituted solution must be drunk over a period of one to two hours the evening before colonoscopy. About half a litre of clear liquid should be drunk in the next hour to prevent dehydration according to local practice at the centre. This process should be repeated with a second litre of Moviprep® prepared by dissolving one sachet A and one sachet B together in water to make one litre of solution in the early morning of the day of the procedure.

Locations

Country Name City State
France Centre Hospitalier Henri Duffaut Avignon
France Hôpital Edouard Herriot Lyon
France Hospices civils de Lyon Lyon
France Centre Hospitalier Universitaire de Montpellier Montpellier
Germany Klinikum der Stadt Ludwigshafen Ludwigshafen
Germany Praxis für Gastroenterologie und Fachärztliche Innere Medizin, Im Haus der Gesundheit Ludwigshafen am Rhein
Germany Katholisches Klinikum Mainz Mainz
Germany Klinikum Worms Medizinische Klinik II Worms
Italy Centro di Riferimento Oncologico IRCCS Aviano PN
Italy Fondazione Poliambulanza - Istituto Ospedaliero Brescia BR
Italy Azienda USL di Modena - Ospedale Ramazzini di Carpi Carpi MO
Italy IRCCS "Saverio De Bellis" Castellana Grotte BA
Italy Ospedale Valduce Como CO
Italy ASST Rhodense - Presidi di Rho e Garbagnate Garbagnate Milanese MI
Italy ASSL Carbonia - Presidio Ospedaliero CTO di Iglesias Iglesias CI
Italy ASST Grande Ospedale Metropolitano Niguarda Milano MI
Italy Fondazione IRCCS Cà Granda Ospedale Maggiore Policlinico di Milano Milano MI
Italy IRCCS Ospedale San Raffaele Milano MI
Italy Istituto Europeo di Oncologia Milano MI
Italy Ospedale Sacro Cuore Negrar VR
Italy Azienda Ospedaliero-Universitaria Maggiore della Carità Novara
Italy Azienda Ospedaliero Universitaria Pisana- Ospedale Cisanello Pisa PI
Italy Policlinico Universitario A. Gemelli Roma RO
Italy IRCCS Policlinico San Donato San Donato Milanese MI
Italy Fondazione Casa Sollievo Della Sofferenza San Giovanni Rotondo FG
Italy Presidio Ospedaliero Santa Chiara Trento TN
Italy ASST Sette Laghi - Ospedale di Circolo e Fondazione Macchi Varese
Russian Federation Irkutsk State Medical Academy of Postgraduate Education Irkutsk
Russian Federation Clinical Hospital of Russian Railways N.A. Semashko Moscow
Russian Federation Moscow Clinical Research and Practical Center of the Department of Health Moscow
Russian Federation State Central Clinical Hospital A. N. Ryzhykh Moscow
Russian Federation Railway Clinical Hospital Rostov
Russian Federation Private educational organization of higher education "Medical University "Reaviz" Samara
Russian Federation Medical Center of Diagnostics and Prevention Yaroslavl
Russian Federation Regional Oncological Clinical Hospital Yaroslavl

Sponsors (1)

Lead Sponsor Collaborator
NTC srl

Countries where clinical trial is conducted

France,  Germany,  Italy,  Russian Federation, 

Outcome

Type Measure Description Time frame Safety issue
Other Phase II - Dose finding: Patients in safe condition related to potentially critical concentrations of gases (H2/CH4) Proportion of patients in safe condition for intestinal gases defined as concentration of potentially critical concentrations of gases (H2>4% and CH4 >5%) During colonoscopy after standard washing and air insufflation for luminal distension at Visit 4
Other Phase II - Dose finding: Incidence of adverse events Incidence of adverse events from the enrollment Visit 2 (= 7 days before Visit 4), Visit 3 (= 7 days before Visit 4) and Visit 4 (day of colonoscopy)
Other Phase II - Dose finding: Proportion of patients with clinically significant change of haematological and chemical parameters from baseline Proportion of patients with change from baseline considered clinically significant by the Investigator of haematological and chemical parameters (CBC, creatinine, BUN, eGFR, ALT, AST, glucose, electrolytes) 4 hours and 8 hours after completion of study drug self-administration. During visit 4 (day of colonoscopy), 4 hours and 8 hours after completion of study drug self administration
Other Phase II - Dose finding: Proportion of patients with clinically significant change of vital signs during colonoscopy Proportion of patients with change of vital signs during colonoscopy considered clinically significant by the Investigator (heart rate and pulse oximetry). During the colonoscopy at Visit 4
Other Phase III - Dose finding:Patients in safe condition related to potentially critical concentration of gases (H2/CH4) Proportion of patients in safe condition for intestinal gases defined as concentration of potentially critical concentration of gases (H2>4% and CH4 >5%) During the colonoscopy at Visit 4
Other Phase III - Non-inferiority: Incidence of adverse events Incidence of adverse events from enrollment Visit 2 (= 7 days before Visit 4), Visit 3 (= 7 days before Visit 4) and Visit 4 (day of colonoscopy)
Other Phase III - Non-inferiority: Proportion of patients with clinically significant change of haematological and chemical parameters from baseline Proportion of patients with change from baseline considered clinically significant by the Investigator of haematological and chemical parameters (CBC, creatinine, BUN, eGFR, ALT, AST, glucose, electrolytes) 4 hours and 8 hours after completion of study drug self-administration. During visit 4 (day of colonoscopy), 4 hours and 8 hours after completion of study drug self-administration
Other Phase III - Non-inferiority: Proportion of patients with change of vital signs from baseline and during colonoscopy Proportion of patients with change of vital signs from baseline considered clinically significant by the Investigator (heart rate, systolic and diastolic blood pressure), as well as clinically significant change during colonoscopy of pulse oximetry, systolic and diastolic blood pressure and heart rate. Visit 4 prior to colonoscopy
Primary Phase II - Dose finding: Proportion of patients with adequate bowel cleansing Proportion of patients with adequate bowel cleansing, defined as BBPS total score = 6, with a score for each of the three colon segments (right; transverse, including flexures; and left, including sigmoid and rectum) = 2 during colonoscopy after standard washing and air insufflation for luminal distension. During colonoscopy (Visit 4)
Primary Phase III - Non-inferiority: Proportion of patients with adequate bowel cleansing Proportion of patients with adequate bowel cleansing, defined as BBPS total score = 6, with a score for each of the three colon segments (right; transverse, including flexures; and left, including sigmoid and rectum) = 2 during colonoscopy after standard washing and air insufflation for luminal distension. During colonoscopy (Visit 4)
Secondary Phase II - Dose finding: Caecal intubation rate The percentage of patients with appendiceal orifice visible to the endoscopist. During colonoscopy at Visit 4
Secondary Phase II - Dose finding: Adherence to bowel preparation Proportion of patient that completely taken, partially taken or not taken assigned mannitol dose. During visit 4, 4 hours after the end of study drug self-administration, before colonoscopy
Secondary Phase II - Dose finding: ease of use Descriptive statistics (Mean) of Numeric Rating Scale (NRS) values ranging from 0 (very difficult) to 10 (very easy). During visit 4, 4 hours after the end of study drug self-administration, before colonoscopy
Secondary Phase II - Dose finding: Willingness to reuse the preparation Proportion of patient who confirmed that they would like to reuse the preparation for other colonoscopies. During visit 4, 4 hours after the end of study drug self-administration, before colonoscopy
Secondary Phase II - Dose finding: Treatment acceptability Descriptive statistics (Mean) of Numeric Rating Scale (NRS) values ranging from 0 (terrible) to 10 (very good). During visit 4 (day of colonoscopy), 4 hours after the end of study drug self-administration, before colonoscopy
Secondary Phase II - Pharmacokinetic Parameter: Peak Plasma Concentration descriptive statistics (mean) of peak plasma concentration (Cmax) as pharmacokinetic parameter. During vist 4 (day of colonoscopy), before mannitol self-administration (T0 - baseline),1 hour (T1), 2 hours (T2), 4 hours (T4) and 8 hours (T8) after completion of mannitol self-administration
Secondary Phase II - Pharmacokinetic Parameter: Time to Maximum Concentration Descriptive statistics (Median) of time to maximum concentration (tmax) as pharmacokinetic parameter. During vist 4 (day of colonoscopy), before mannitol self-administration (T0 - baseline),1 hour (T1), 2 hours (T2), 4 hours (T4) and 8 hours (T8) after completion of mannitol self-administration
Secondary Phase II - Pharmacokinetic Parameter: Area Under the Curve Descriptive statistics (Mean) of area under the curve from t0 to the last blood sampling time point (AUC 0-t8), as pharmacokinetic parameter. During vist 4 (day of colonoscopy), before mannitol self-administration (T0 - baseline),1 hour (T1), 2 hours (T2), 4 hours (T4) and 8 hours (T8) after completion of mannitol self-administration
Secondary Phase II - Pharmacokinetic Parameter: Elimination Half Life Descriptive statistics (Mean) of elimination half life (t1/2), as pharmacokinetic parameter. During vist 4 (day of colonoscopy), before mannitol self-administration (T0 - baseline),1 hour (T1), 2 hours (T2), 4 hours (T4) and 8 hours (T8) after completion of mannitol self-administration
Secondary Phase III - Non-inferiority: Adenoma detection rate The percentage of patients with at least one lesion detected. During the colonoscopy at Visit 4
Secondary Phase III - Non-inferiority: Ottawa Bowel Preparation Scale (OBPS) Ottawa scale is used to measure the quality of the preparation in three different parts of the colon before washing and insufflation. descriptive statistics (Mean) of the total score (from 0 excellent to 14 inadequate). During the colonoscopy at Visit 4
Secondary Phase III - Non-inferiority: Caecal intubation rate The percentage of patients with appendiceal orifice visible to the endoscopist. During the colonoscopy at Visit 4
Secondary Phase III - Non-inferiority: Bowel Cleansing Impact Review (BOCLIR) (Italian sites only) The BOCLIR is a questionnaire filled in by patients to measure the acceptability and tolerability of bowel cleansers consisting of three unidimensional scales (satisfaction, symptoms and activity limitations) with good psychometric and scaling properties. Item responses are summed to provide a score for each scale and a total score. The satisfaction scale contains eight items and the score ranges from 0 (highly satisfied) to 32 (highly dissatisfied). The symptoms scale includes 14 items and the score ranges from 0 (no symptoms) to 42 (severe symptoms).
The activity limitations scale is made up of 12 items and the score ranges from 0 (no effect on activities) to 36 (activities greatly affected). The total score is the sum of the three scales and ranges from 0 to 110. Patients who report a worse experience in terms of the three factors score higher on the BOCLIR scale.
Visit 4 after the end of study drug self-administration, before colonoscopy
Secondary Phase III - Non-inferiority: Adherence to bowel preparation with mannitol and with Moviprep®. Proportion of patients that completely taken, partially taken or not taken assigned mannitol dose During visit 4, 4 hours after the end of study drug self-administration, before colonoscopy
Secondary Phase III - Non-inferiority: ease of use Descriptive statistics (Mean) of Numeric Rating Scale (NRS) values ranging from 0 (very difficult) to 10 (very easy). During visit 4, 4 hours after the end of study drug self-administration, before colonoscopy
Secondary Phase III - Non-inferiority: Willingness to reuse the preparation Proportion of patient who confirmed that they would like to reuse the preparation for other colonoscopies. During visit 4, 4 hours after the end of study drug self-administration, before colonoscopy
Secondary Phase III - Non-inferiority: Treatment acceptability Descriptive statistics (Mean) of Numeric Rating Scale (NRS) values ranging from 0 (terrible) to 10 (very good). During visit 4, 4 hours after the end of study drug self-administration, before colonoscopy
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