E.1 Medical condition or disease under investigation |
E.1.1 | Medical condition(s) being investigated |
This study will include all patients having received at least one infusion of the Investigational Medicinal Product (IMP) HepaStem HALPC during a previous interventional clinical study conducted by Promethera Biosciences or Promethera Therapeutics including patients suffering from urea cycle disorders (UCD), Crigler-Najjar (CN) and Fibro-inflammatory liver diseases |
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E.1.1.1 | Medical condition in easily understood language |
This study is a long term safety follow-up for all the patients that have received at least one dose of HepaStem: patients suffering from UCD, CN and fibro-inflammatory liver diseases |
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E.1.1.2 | Therapeutic area | Diseases [C] - Nutritional and Metabolic Diseases [C18] |
MedDRA Classification |
E.1.2 Medical condition or disease under investigation |
E.1.2 | Version | 20.1 |
E.1.2 | Level | LLT |
E.1.2 | Classification code | 10021601 |
E.1.2 | Term | Inborn error of metabolism NOS |
E.1.2 | System Organ Class | 100000004850 |
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E.1.2 Medical condition or disease under investigation |
E.1.2 | Version | 20.0 |
E.1.2 | Level | LLT |
E.1.2 | Classification code | 10008954 |
E.1.2 | Term | Chronic liver disease and cirrhosis |
E.1.2 | System Organ Class | 100000004871 |
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E.1.2 Medical condition or disease under investigation |
E.1.2 | Version | 20.1 |
E.1.2 | Level | LLT |
E.1.2 | Classification code | 10049844 |
E.1.2 | Term | Acute liver failure |
E.1.2 | System Organ Class | 100000004871 |
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E.1.2 Medical condition or disease under investigation |
E.1.2 | Version | 21.1 |
E.1.2 | Level | LLT |
E.1.2 | Classification code | 10013373 |
E.1.2 | Term | Disorders of urea cycle metabolism |
E.1.2 | System Organ Class | 200000003094 |
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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 assess long-term safety of HepaStem therapy post administration in patients who have been infused with at least one dose of HepaStem in a previous interventional clinical study conducted by Promethera Therapeutics. |
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E.2.2 | Secondary objectives of the trial |
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E.2.3 | Trial contains a sub-study | No |
E.3 | Principal inclusion criteria |
1. Patients who have received at least one infusion of HepaStem during a previous interventional clinical study conducted by Promethera Therapeutics. Note: Patients currently participating in ongoing double-blinded controlled interventional studies during which HepaStem is administered will be invited to enter PROLONGSTEM study. Once this double-blinded controlled interventional study is complete and/or treatment is unblinded, the patients will be informed about the treatment they received. HepaStem-recipients will remain in the PROLONGSTEM study, and the participation of control-recipients in the PROLONGSTEM study will be terminated. 2. Patients who are able to understand and give written informed consent. For children (as defined according to national regulations), and informed consent shall be sought from the parents or legal representatives on behalf of the child. If the child is capable of understanding the purpose of the study, he/she should provide an informed assent and sign the assent form. Minor patients at the time of inclusion who become adult (accoridng to national regulations) during the course of the study during the course of the PROLONGSTEM study should provide an informed consent (and sign the adul ICF) as soon as they reach adulthood. For adult patients who are legally incapable of providing informed consent at the time of inclusion (due to an incapacitating condition such as brain disease or hepatic encephalopathy), a legal representative should provide a signed informed consent before enrollment. After improvement of the incapacitating condition, and as soon as the investigator considers that the patients have become capable to consent by themselves, the patients must sign the ICF.
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E.4 | Principal exclusion criteria |
1. Patients who received an OLT orthotopic liver transplantation and who completed the 6-month FU follow-up documentation Organ Transplantation Questionnaire prior to the start of the PROLONGSTEM study. Note: Patients who received an orthotopic liver transplantation and who did not complete the 6-month follow-up Organ Transplantation Questionnaire prior to the start of the PROLONGSTEM study may be included in the PROLONGSTEM study. These patients will remain in the PROLONGSTEM study until the completion of the 6-month follow-up Organ Transplantation Questionnaire. Data from the last visit of the previous clinical study conducted by the Sponsor (i.e., the start of the PROLONGSTEM study) up to the date of completion of the 6-month follow-up Organ Transplantation Questionnaire will be collected. 2. Patients who have received mature liver cells or stem cells other than HepaStem prior to the start of the PROLONGSTEM study. Note: Patients who received mature liver cells or stem cells other than HepaStem after the last visit of the previous clinical study conducted by the Sponsor (i.e., the start of the PROLONGSTEM study) may be included in the PROLONGSTEM study. Only retrospective data (between the last visit of the previous study and before the administration of such cells) will be collected from those patients. |
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E.5 End points |
E.5.1 | Primary end point(s) |
Primary: Occurrence of Adverse Events of Specific Interest (AESI): - Event with fatal outcome (Death) - Organ Transplantation and Outcome. - Development of Malignancy or unwanted tissue formation in different organs (tumor development malignant or not). - Disease linked to transmission of adventitious agents or reactivation of latent pathogens. - Any adverse event (AE) judge to have a plausible causal relationship to HepaStem. These AESI should be considered as medically important and reported as SAE. |
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E.5.1.1 | Timepoint(s) of evaluation of this end point |
The planned follow-up of each patient in the PROLONGSTEM study is up to 60 months (5 years) after the patient's last visit in the previous clinical study conducted by the Sponsor |
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E.5.2 | Secondary end point(s) |
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E.5.2.1 | Timepoint(s) of evaluation of this end point |
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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 | No |
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) | Yes |
E.7.3 | Therapeutic confirmatory (Phase III) | No |
E.7.4 | Therapeutic use (Phase IV) | No |
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 | No |
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 | Yes |
E.8.5.1 | Number of sites anticipated in the EEA | 20 |
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 |
Belgium |
France |
Poland |
United Kingdom |
Bulgaria |
Romania |
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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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 | 7 |
E.8.9.1 | In the Member State concerned days | |
E.8.9.2 | In all countries concerned by the trial years | 5 |