Status: Ongoing
First registered on:
19/09/2016
Last updated on:
08/12/2020
1. Study identification
EU PAS Register NumberEUPAS15353
Official titleLinaclotide Safety Study for the Assessment of Diarrhoea—Complications and Associated Risk Factors in Selected European Populations with IBS-C
Study title acronym
Study typeObservational study
Brief description of the studyThis study is planned to assess the safety of linaclotide in terms of the risk of severe complications of diarrhoea (SCD) during treatment and other risk factors among patients with Irritable bowel syndrome (IBS) predominantly with constipation (IBS-C). Linaclotide is the first medicine authorised for the symptomatic treatment of IBS in the European Union.
Was this study requested by a regulator?Yes: EMA
Is the study required by a Risk Management Plan (RMP)?
EU RMP category 3 (required)
Regulatory procedure number (RMP Category 1 and 2 studies only)
Other study registration identification numbers and URLs as applicableEVM-18888
CMO-EPI-GI-0566
2. Research centres and Investigator details
Coordinating study entity
Centre to which the investigator belongsEvidera
Department/Research groupReal World Evidence
Organisation/affiliationEvidera
Details of (Primary) lead investigator
Title Dr
Last name Cid
First name Javier
Is this study being carried out with the collaboration of a research network?
No
Other centres where this study is being conducted
Multiple centres
In total how many centres are involved in this Study?2
Countries in which this study is being conducted
International study
Spain
Sweden
United Kingdom
3. Study timelines: initial administrative steps, progress reports and final report
PlannedActual
Date when funding contract was signed25/08/2016
Start date of data collection13/05/201313/05/2013
Start date of data analysis16/04/2018
Date of interim report, if expected
Date of final study report30/06/2021
4. Sources of funding
Please provide estimates of the percentage of funding by source for this study
Names(s)Approximate % funding
Pharmaceutical companiesAllergan100
Charities
Government body
Research councils
EU funding scheme
5. Contact details for enquiries
Scientific Enquiries
Title Dr
Last name Cid
First name Javier
Address line 1Metro Building 6th Floor
Address line 2
Address line 3
CityLondon
PostcodeW6 8DL
CountryUnited Kingdom
Phone number (incl. country code)34932213441
Alternative phone number4407769275683
Fax number (incl. country code)
Public Enquiries
Title Dr
Last name Cid
First name Javier
Address line 1Metro Building 6th Floor
Address line 21 Butterwick
Address line 3
CityLondon
PostcodeW6 8DL
CountryUnited Kingdom
Phone number (incl. country code)34932213441
Alternative phone number4407769275683
Fax number (incl. country code)
6. Study drug(s) information
Single-Constituent (Substance INN)LINACLOTIDE
7. Medical conditions to be studied
Medical condition(s)Yes
Irritable bowel syndrome
Diarrhoea
8. Population under study
Age
Children (2 - 11 years)
Adolescents (12 - 17 years)
Adults (18 - 44 years)
Adults (45 - 64 years)
Adults (65 - 74 years)
Adults (75 years and over)
Sex
Male
Female
9. Number of subjects
Estimated total number of subjects200
Additional information
A case-control study of SCD cases nested in a cohort of approximately 200,000 patients with IBS-C would require a total of 94 case-control pairs (equivalent to an incidence of SCD= 0.05%) with the necessary data for the analysis to have at least 80% power to detect an OR=4 (or larger), associating SCD with a risk factor present in 5% of controls (assuming 5% of patients are exposed to linaclotide)
10. Source of data
Is this study being carried out with an established data source?Yes
Data sources registered with ENCePP
Data sources not registered with ENCePP
Swedish National Patient Register, Sweden
Sources of data
Administrative database, e.g. claims database
Routine primary care electronic patient registry
Pharmacy dispensing records
11. Scope of the study
What is the scope of the study?
Risk assessment
Primary scope : Risk assessment
12. Main objective(s)
What is the main objective of the study?
-To estimate the risk (case-control OR) of SCD (case) among patients with IBS-C (source population) who received linaclotide prescription vs those who did not, controlling for other potential SCD risk factors (socio-demographics, comorbidities, co-medications and other potential variables of interest)
-To describe the crude incidence of diarrhoea among patients with IBS-C (source population)
Are there primary outcomes?Yes
SCD cases are suffering diarrhoea and subsequently any of the following:
-Dehydration that requires intravenous rehydration or oral rehydration with solutions of electrolytes
-Electrolyte imbalance
-Oliguria
-Anuria
-New-onset orthostatic hypotension, syncope, dizziness or vertigo
-Acute renal failure
-Hypovolaemic shock
-Hospitalisation due to diarrhoea
-Stupor
-Coma
-Death
Are there secondary outcomes?No
13. Study design
What is the design of the study?
Cohort study
Case-control study
14. Follow-up of patients
Will patients be followed up?Yes
Please describe duration of follow up
The follow-up period for each study subject in the IBS-C cohort will be from the cohort entry date to the earliest of the following (end of follow-up date; one day is the minimum follow-up):
−End of the study period
−Disenrollment from the database (date of transfer out of the practice or the primary care physician or Sweden)
−Date of last data collection for the practice
−Death
−Index date
15. Data analysis plan
Please provide a brief summary of the analysis method
Patient characteristics at the IBS-C cohort entry date will be described for the full cohort of patients with IBS-C by reviewing data for a minimum of 12 months prior. Characteristics at index date will be described for the cases and controls by reviewing data for a minimum of 12 months prior to index date.
The crude incidence of diarrhoea and the crude incidence of SCD will be described in: the full cohort of patients with IBS-C, the sub-cohorts of patients with prescriptions of linaclotide and for those groups of patients with increased risk of SCD (patients ≥65 yrs and patients with hypertension, diabetes, or cardiovascular disease diagnostic codes). If the validation results of cases and controls are satisfactory then information from the whole cohort would be used to estimate relative risks of SCD and the exposures of interest (linaclotide) using the Cox proportional hazard model. Otherwise only the nested case-control analysis will be conducted (conditional logistic regression).
16. ENCePP seal
Are you requesting the ENCePP seal for this study?
No
17. Full protocol
Available when the study ends
18. Study Results
Not submitted
Please list the 5 most relevant publications using data from your study
ReferenceLink to web-publication
None
19. Other relevant documents
Conflict(s) of interest of
investigator(s)Not submitted
Composition of Steering Group and
ObserversNot submitted
Other documentsNot
submitted
Signed Code of
Conduct Checklist
Not submitted
Signed Code of Conduct Declaration
Not submitted
Signed Checklist for Study
Protocols
Not submitted
