E.1 Medical condition or disease under investigation |
E.1.1 | Medical condition(s) being investigated |
Inflammatory bowel diseases - Crohn's disease - ulcerative colitis |
|
E.1.1.1 | Medical condition in easily understood language |
Inflammatory bowel diseases - Crohn's disease - ulcerative colitis |
|
E.1.1.2 | Therapeutic area | Diseases [C] - Digestive System Diseases [C06] |
MedDRA Classification |
E.1.3 | Condition being studied is a rare disease | No |
E.2 Objective of the trial |
E.2.1 | Main objective of the trial |
To compare the steroid-free, combined clinical and biological outcome between model-informed infliximab dose de-escalation and standard dose de-escalation in patients with inflammatory bowel diseases.
|
|
E.2.2 | Secondary objectives of the trial |
- To compare the (evolution of) infliximab exposure - To compare the (evolution of) clinical outcome - To compare the (evolution of) biological outcome - To compare the socio-economic aspects - To compare the quality of life between model-informed infliximab dose de-escalation and standard dose de-escalation in patients with inflammatory bowel diseases.
|
|
E.2.3 | Trial contains a sub-study | No |
E.3 | Principal inclusion criteria |
- The subject is aged 18 to 80 years inclusive. - The subject is diagnosed with moderately to severely active ulcerative colitis or Crohn’s disease, confirmed by clinical, endoscopic, histological, and/or imaging criteria. - The subject was in maintenance therapy, later lost their response to treatment and subsequently gained steroid-free, clinical and biological remission following infliximab dose escalation (i.e., by increasing the dose and/or shortening the dosing interval) and had an infliximab trough concentration ≥5 mg/L. - Adequate contraception in female subjects of reproductive age (oral contraception, intra-uterine device, sterilisation or barrier method).
|
|
E.4 | Principal exclusion criteria |
- The subject is aged <18 years or >80 years. - The subject receives infliximab prophylactically (e.g. in the immediate postoperative setting). - The subject has an ostomy or an ileal anal pouch anastomosis. - If female subjects, when pregnant (based on a positive serum sample) or lactating or intending to become pregnant or nurse before, during or within 15 weeks after the last dose of study drug; or intending to donate ova during such time period. - The subject is participating in another interventional clinical trial.
|
|
E.5 End points |
E.5.1 | Primary end point(s) |
The proportion of patients maintaining steroid-free, combined clinical and biological remission during one year after infliximab dose de-escalation. |
|
E.5.1.1 | Timepoint(s) of evaluation of this end point |
Continuously during one year after the first infliximab infusion in the trial. |
|
E.5.2 | Secondary end point(s) |
- The proportion of patients maintaining (steroid-free), combined clinical and biological remission at - The proportion of patients maintaining (steroid-free) clinical remission at - The proportion of patients maintaining (steroid-free) clinical remission during - The proportion of patients maintaining (steroid-free) biological remission at - The infliximab trough concentration at - The average infliximab trough concentration during - The probability of target attainment for the trough concentration target attainment at - The probability of target attainment for the trough concentration target attainment during - The model-predicted area under the infliximab concentration-time curve during - The infliximab dose at - The total infliximab dose during - The number of infliximab infusion visits during - The direct cost of infliximab therapy at - The direct cost to proportion of patients maintaining steroid-free, combined clinical and biological remission ratio at one year after infliximab dose de-escalation based on a standard dosing algorithm versus a model-informed dosing algorithm.
- The total cost (i.e., direct and indirect costs) of infliximab therapy - The quality-adjusted life years - The total cost to quality-adjusted life year ratio before versus after one year dose de-escalation within each patient in the prospective (model-informed dose de-escalation) study arm.
|
|
E.5.2.1 | Timepoint(s) of evaluation of this end point |
Continuously during one year after the first infliximab infusion in the trial ("during") or at one year after the first infliximab infusion in the trial ("at"). |
|
E.6 and E.7 Scope of the trial |
E.6 | Scope of the trial |
E.6.1 | Diagnosis | No |
E.6.2 | Prophylaxis | No |
E.6.3 | Therapy | No |
E.6.4 | Safety | No |
E.6.5 | Efficacy | Yes |
E.6.6 | Pharmacokinetic | Yes |
E.6.7 | Pharmacodynamic | Yes |
E.6.8 | Bioequivalence | No |
E.6.9 | Dose response | Yes |
E.6.10 | Pharmacogenetic | No |
E.6.11 | Pharmacogenomic | No |
E.6.12 | Pharmacoeconomic | Yes |
E.6.13 | Others | No |
E.7 | Trial type and phase |
E.7.1 | Human pharmacology (Phase I) | No |
E.7.1.1 | First administration to humans | No |
E.7.1.2 | Bioequivalence study | No |
E.7.1.3 | Other | No |
E.7.1.3.1 | Other trial type description | |
E.7.2 | Therapeutic exploratory (Phase II) | No |
E.7.3 | Therapeutic confirmatory (Phase III) | No |
E.7.4 | Therapeutic use (Phase IV) | Yes |
E.8 Design of the trial |
E.8.1 | Controlled | No |
E.8.1.1 | Randomised | No |
E.8.1.2 | Open | Yes |
E.8.1.3 | Single blind | No |
E.8.1.4 | Double blind | No |
E.8.1.5 | Parallel group | No |
E.8.1.6 | Cross over | No |
E.8.1.7 | Other | Yes |
E.8.1.7.1 | Other trial design description |
Non-randomized, non-blinded, historically controlled, interventional trial |
|
E.8.2 | Comparator of controlled trial |
E.8.2.1 | Other medicinal product(s) | No |
E.8.2.2 | Placebo | No |
E.8.2.3 | Other | No |
E.8.3 |
The trial involves single site in the Member State concerned
| Yes |
E.8.4 | The trial involves multiple sites in the Member State concerned | No |
E.8.5 | The trial involves multiple Member States | No |
E.8.6 Trial involving sites outside the EEA |
E.8.6.1 | Trial being conducted both within and outside the EEA | No |
E.8.6.2 | Trial being conducted completely outside of the EEA | No |
E.8.7 | Trial has a data monitoring committee | No |
E.8.8 |
Definition of the end of the trial and justification where it is not the last
visit of the last subject undergoing the trial
|
|
E.8.9 Initial estimate of the duration of the trial |
E.8.9.1 | In the Member State concerned years | 1 |
E.8.9.1 | In the Member State concerned months | 6 |
E.8.9.1 | In the Member State concerned days | |