E.1 Medical condition or disease under investigation |
E.1.1 | Medical condition(s) being investigated |
Perianal fistulising Crohn´s disease |
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E.1.1.1 | Medical condition in easily understood language |
Treatment for perianal fistulising
Crohn's disease |
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E.1.1.2 | Therapeutic area | Diseases [C] - Digestive System Diseases [C06] |
MedDRA Classification |
E.1.2 Medical condition or disease under investigation |
E.1.2 | Version | 16.0 |
E.1.2 | Level | PT |
E.1.2 | Classification code | 10002156 |
E.1.2 | Term | Anal fistula |
E.1.2 | System Organ Class | 10017947 - Gastrointestinal disorders |
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E.1.3 | Condition being studied is a rare disease | Yes |
E.2 Objective of the trial |
E.2.1 | Main objective of the trial |
To evaluate the efficacy and safety of eASCs compared to placebo for the treatment of compex fistulas in Crohn's disease over a 24-week period and an extended follow-up period up to 52 weeks. |
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E.2.2 | Secondary objectives of the trial |
There are no secondary objectives. |
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E.2.3 | Trial contains a sub-study | No |
E.3 | Principal inclusion criteria |
(1) Signed informed consent*
(2) Patients with Crohn’s Disease (CD) diagnosed at least 6 months earlier in accordance with accepted clinical, endoscopic, histological and/or radiologic criteria
(3) Presence of complex perianal fistulas with a maximum of 2 internal openings and a maximum of 3 external openings, assessed by clinical assessment and MRI. Fistula must have been draining for at least 6 weeks prior to the inclusion.
A complex perianal fistula is defined as a fistula that met one or more of the following criteria during its evolution:
• High inter-sphincteric, trans-sphincteric, extra-sphincteric or supra-sphincteric
• Presence of ≥ 2 external openings (tracts)
• Associated collections
(4) Non-active or mildly active luminal CD defined by a CDAI ≤ 220
(5) Patients of either sex aged 18 years or older
(6) Good general state of health according to clinical history and a physical examination
(7) For women of a childbearing age, they must have negative serum or urine pregnancy test (sensitive to 25 IU human chorionic gonadotropin [hCG]). Both men and women should use appropriate birth control methods defined by the investigator
*To participate in the extension follow-up period up to 52 weeks, it is required the previous participation in the Cx601-0302 study, having completed 24 weeks within it, or alternatively having the early-termination visit done. Patients should have signed the informed consent for the extension follow-up period up to 52 weeks.
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E.4 | Principal exclusion criteria |
(1) Presence of dominant luminal active Crohn’s disease requiring immediate therapy
(2) CDAI >220
(3) Concomitant rectovaginal fistulas
(4) Patient naïve to specific treatment for perianal fistulising Crohn’s disease including antibiotics
(5) Presence of an abscess or collections > 2 cm, unless resolved in the preparation procedure (week -3 to day 0)
(6) Presence of > 2 internal openings
(7) Presence of > 3 external openings
(8) Rectal and/or anal stenosis and / or active proctitis, if this means a limitation for any surgical procedure
(9) Patient who underwent surgery for the fistula other than drainage or seton placement
(10) Patient with diverting stomas
(11) Patient with ongoing steroid treatment or treated with steroids in the last 4 weeks
(12) Renal impairment defined by creatinine clearance below 60 ml/min calculated using Cockcroft-Gault formula or by serum creatinine ≥ 1.5 x upper limit of normality (ULN)
(13) Hepatic impairment defined by both of the following laboratory ranges:
• Total bilirubin ≥ 1.5 x ULN
• AST and ALT ≥ 2.5 x ULN
(14) Known history of abuse of alcohol or other addictive substances in the 6 months prior to inclusion
(15) Malignant tumour or patients with a prior history of any malignant tumour, including any type of fistula carcinoma
(16) Current or recent history of abnormal, severe, progressive, uncontrolled hepatic, haematological, gastrointestinal (except CD), endocrine, pulmonary, cardiac, neurological, psychiatric, or cerebral disease
(17) Congenital or acquired immunodeficiencies
(18) Known allergies or hypersensivity to antibiotics including but not limited to penicillin, streptomycin, gentamicin, aminoglycosides; HSA (Human Serum Albumin); DMEM (Dulbecco Modified Eagle’s Medium); materials of bovin origin; local anaesthetics or gadolinium (MRI contrast)
(19) Contraindication to MRI scan, (e.g., due to the presence of pacemakers, hip replacements or severe claustrophobia)
(20) Major surgery or severe trauma within the previous 6 months
(21) Pregnant or breastfeeding women
(22) Patients who do not wish to or cannot comply with study procedures
(23) Patients currently receiving, or having received within 3 months prior to enrolment into this clinical study, any investigational drug
(24) Patients previously treated with eASCs can not be enrol into this clinical study
(25) Subjects who need surgery in the perianal region for reasons other than fistulas at the time of inclusion in the study, or for whom such surgery is foreseen in this region in the 24 weeks after treatment administration
(26) Contraindication to the anaesthetic procedure
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E.5 End points |
E.5.1 | Primary end point(s) |
Remission of perianal fistulising Crohn?s disease at week 24 confirmed by MRI, defined as the clinical assessment of closure of all the external openings that were draining at baseline despite gentle finger compression at week 24, confirmed by MRI as absence of collections > 2 cm of the treated perianal fistulas at 24 weeks (central blind assessment). |
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E.5.1.1 | Timepoint(s) of evaluation of this end point |
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E.5.2 | Secondary end point(s) |
Secondary efficacy endpoints at week 24 will include:
• Response at week 24, defined as closure of at least 50% of all external
openings that were draining at baseline.
• Time to remission at week 24, (first visit with closure of all external
openings that were draining at baseline, as clinically assessed)
• Time to response at week 24, (first visit with closure of at least 50% of
all external openings that were draining at baseline, as clinically
asessed).
• Severity of perianal Crohn's disease at week 24, assessed with the
Perianal Disease Activity Index (PDAI)
• Quality of Life (QoL) at week 24, assessed by the Inflammatory Bowel
Disease Questionnaire (IBDQ).
• CDAI (Crohn's Disease Activity Index) score at week 24
Safety:
• Adverse events along 24
• Physical examination along 24
• Vital signs along 24
• Laboratory tests (biochemistry, haematology, urinalysis) along 24
Secondary endpoint(s) at week 52:
Efficacy:
• Response at 52 weeks, defined as closure of at least 50% of all
external openings that were draining at baseline
• Time to remission at 52 weeks, (first visit with closure of all external
openings that were draining at baseline, as clinically assessed)
• Time to response at 52 weeks (first visit with closure of at least 50%
of all external openings that were draining at baseline, as clinically
assessed)
• Severity of the perianal Crohn's disease at 52 weeks, assessed with
the Perianal Disease Activity Index (PDAI)
• Quality of Life (QoL) at 52 weeks assessed by the Inflammatory Bowel
Disease Questionnaire (IBDQ)
• CDAI score at 52 weeks
Remission rate of perianal fistulising Crohn's disease at week 52
confirmed by MRI, defined as the clinical assessment of closure of all the
external openings that were draining at baseline despite gentle finger
compression at week 52, confirmed by MRI as absence of collections > 2
cm of the treated perianal fistulas at 52 weeks (central blind
assessment).
Safety:
• Adverse events along 52 weeks
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• Physical examination along 52 weeks
• Vital signs along 52 weeks
• Laboratory tests (biochemistry, haematology, urinalysis) along 52
weeks |
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E.5.2.1 | Timepoint(s) of evaluation of this end point |
at 24 and 52 weeks after the treatment |
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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 | Yes |
E.6.5 | Efficacy | Yes |
E.6.6 | Pharmacokinetic | No |
E.6.7 | Pharmacodynamic | No |
E.6.8 | Bioequivalence | No |
E.6.9 | Dose response | No |
E.6.10 | Pharmacogenetic | No |
E.6.11 | Pharmacogenomic | No |
E.6.12 | Pharmacoeconomic | No |
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) | Yes |
E.7.4 | Therapeutic use (Phase IV) | No |
E.8 Design of the trial |
E.8.1 | Controlled | Yes |
E.8.1.1 | Randomised | Yes |
E.8.1.2 | Open | No |
E.8.1.3 | Single blind | No |
E.8.1.4 | Double blind | Yes |
E.8.1.5 | Parallel group | Yes |
E.8.1.6 | Cross over | No |
E.8.1.7 | Other | No |
E.8.2 | Comparator of controlled trial |
E.8.2.1 | Other medicinal product(s) | No |
E.8.2.2 | Placebo | Yes |
E.8.2.3 | Other | No |
E.8.2.4 | Number of treatment arms in the trial | 2 |
E.8.3 |
The trial involves single site in the Member State concerned
| No |
E.8.4 | The trial involves multiple sites in the Member State concerned | Yes |
E.8.4.1 | Number of sites anticipated in Member State concerned | 4 |
E.8.5 | The trial involves multiple Member States | Yes |
E.8.5.1 | Number of sites anticipated in the EEA | 40 |
E.8.6 Trial involving sites outside the EEA |
E.8.6.1 | Trial being conducted both within and outside the EEA | Yes |
E.8.6.2 | Trial being conducted completely outside of the EEA | No |
E.8.6.3 | If E.8.6.1 or E.8.6.2 are Yes, specify the regions in which trial sites are planned |
Austria |
Belgium |
France |
Germany |
Israel |
Italy |
Netherlands |
Spain |
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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
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Final study:Last visit of the last subject undergoing the trial.
If the study is prematurely terminated or suspended for any reason, the reasons for terminating the study may include, but are not limited to the following:
- Incidence or severity of AE indicating a potential health hazard to subjects.
- Subject enrolment is unsatisfactory.
- Investigator does not adhere to protocol or applicable regulatory guidelines in conducting the study.
- Ethical or medical reasons. |
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E.8.9 Initial estimate of the duration of the trial |
E.8.9.1 | In the Member State concerned years | 3 |
E.8.9.1 | In the Member State concerned months | 3 |
E.8.9.1 | In the Member State concerned days | 0 |
E.8.9.2 | In all countries concerned by the trial years | 3 |
E.8.9.2 | In all countries concerned by the trial months | 3 |
E.8.9.2 | In all countries concerned by the trial days | 0 |