E.1 Medical condition or disease under investigation |
E.1.1 | Medical condition(s) being investigated |
Prevention of liver transplant rejection |
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E.1.1.1 | Medical condition in easily understood language |
Prevention of liver transplant rejection |
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E.1.1.2 | Therapeutic area | Body processes [G] - Immune system processes [G12] |
MedDRA Classification |
E.1.2 Medical condition or disease under investigation |
E.1.2 | Version | 20.0 |
E.1.2 | Level | PT |
E.1.2 | Classification code | 10024715 |
E.1.2 | Term | Liver transplant rejection |
E.1.2 | System Organ Class | 10021428 - Immune system 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 safety and tolerability of a single target dose of QEL-001 |
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E.2.2 | Secondary objectives of the trial |
To assess the clinical activity of QEL-001 (Part 2 only) To assess safety-related events To determine absence or presence of exposure to replication-competent lentivirus (RCL) |
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E.2.3 | Trial contains a sub-study | No |
E.3 | Principal inclusion criteria |
1. Subjects (regardless of gender) must be 18 to 75 years of age inclusive, at the time of signing the informed consent. 2. HLA A2/A28neg (including split antigens A68neg and A69neg) subjects who have received an A2pos liver transplant. 3. Having received a liver transplant 12 months to 5 years prior to study entry with: a. No episodes of rejection in the previous 12 months (except early rejection taking place in the first 3 months post-transplantation. b. No previous episodes of rejection requiring lymphodepleting antibody therapy. 4. Having alanine aminotransferase (ALT) <60 U/L and either alkaline phosphatase (ALP) <200 U/L or gamma-glutamyl transferase (GGT) <100 U/L. 5. Having eGFR ≥ 40 mL/min/1.73 m2 using the MDRD formula. 6. Having an adequate bone marrow (BM) function without requiring ongoing blood product(s) or granulocyte colony-stimulating factor (GCSF) and meeting the following criteria: a. Absolute neutrophil count ≥ 1.0 x 10e9/L b. Absolute lymphocyte count ≥ 0.3 x 10e9/L c. Leucocyte count ≥ 2.0 x 10e9/ L d. Haemoglobin ≥ 80 g/L e. Platelet greater or equal to 100 x 10e9/L 7. Having an Eastern Cooperative Oncology Group (ECOG) performance status 0 or 1 8. Able and willing to use a highly effective method of contraception (male subjects and female subjects with reproductive potential) from informed consent through and for at least 12 months. 9. A WOCBP must have a negative highly sensitive pregnancy test (urine or serum as required by local regulations) at Screening, prior to conditioning with rATG and prior/post QEL-001 infusion. 10. Capable of giving signed informed consent which includes compliance with the requirements and restrictions listed in the informed consent form (ICF) and in this protocol. 11. Being on stable maintenance of immunosuppression for at least 12 weeks prior to study entry |
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E.4 | Principal exclusion criteria |
1. Having any medical condition that, in the opinion of the principal investigator (PI), would interfere with safe completion of the trial including: a. Severe cardiac disease, severe respiratory disease with O2 blood saturation <92%. b. Any other major organ dysfunction. 2. Having received prior non-liver solid organ or hematopoietic stem cell transplant. 3. Have had any major surgical intervention in the last 3 months prior to study entry (such as open surgeries requiring general anaesthetic). 4. History of autoimmune disease requiring systemic immunosuppression, systemic disease modifying agents or biologics within the last 24 months prior to study entry. 5. History of autoimmune hepatitis, primary sclerosing cholangitis or primary biliary cholangitis. 6.Having any evidence of recurrent hepatocellular carcinoma (HCC) following clinical assessment; for subjects with liver explant histology showing a RETREAT score greater than 0 the clinical assessment should include a thoraco-abdominal radiological scan (CT or MRI according to local clinical practice) performed within 1 month prior to enrolment. 7. History of HCC with high risk of recurrence defined as: a. For subjects who are <2 years post-transplant: a) RETREAT score greater than or equal to 3. b. For subjects who are 2-5 years post-transplant: a) RETREAT score greater than or equal to 4. c. Additional explant-based exclusion criteria: i) presence of diffuse HCC in explant; ii) presence of extrahepatic extension or macrovascular invasion; iii) diagnostics of cholangiocarcinoma; iv) subjects who have undergone a downstaging procedure pretransplantation. 8. Having active primary or recurrent malignant disease or have been in remission from clinically significant malignancy for less than 5 years. a. Except subjects that have had a cervical carcinoma in situ that has been resected with no evidence of recurrence or metastatic disease for at least 3 years may participate in the study. b. Except subjects that have had basal cell or squamous epithelial skin cancers that have been completely resected with no evidence of recurrence for at least 3 years may participate in the study. 9. Having urine protein to creatinine ratio > 25mg/mmol or > 50mg/mmol if the subject is already under dual therapy TAC/EVR. 10. Having triglycerides ≥ 3.95 mmol/L (350 mg/dL) despite appropriate therapy. 11. Having cholesterol ≥ 7.8 mmol/L (301.5 mg/dL) despite appropriate therapy. 12. Having QTc > 450 msec for male subjects or QTc > 470 msec for female subjects or QTc > 480 msec in subjects with bundle branch block. 13. Having any contraindications to receive rATG, EVR (notably subjects with rare hereditary problems of galactose intolerance, total lactase deficiency or glucose-galactose malabsorption), TAC or rituximab. 14. Receiving any other concurrent investigational agents within 3 months prior study entry. 15. Having an active infection as defined in the study protocol. 16. Having previous history of human immunodeficiency virus (HIV). 17. Evidence of active or latent tuberculosis (TB). After anti-TB treatment, patients with history of active or latent TB may become eligible according to national guidelines. 18. Recent history of reactivation of Cytomegalovirus (CMV) defined as positive DNA test within 6 months prior entry to the study. 19. Females who are pregnant (i.e., positive blood or urine β human Chorionic Gonadotropin (β- hCG) test) or lactating. 20. Do not have: a. up-to-date vaccination status as per local immunization schedules/national guidelines (e.g., influenza and pneumococcal vaccination for >65 years old). b. any required vaccination (if required) at least 2 weeks prior to study entry, in accordance with national guidelines. 21. Have known or suspected hypersensitivity or allergy to DMSO present in QEL-001 as excipients. 22. Having a non-adequate bilateral venous access for leukapheresis, or not willing to undergo a central venous catheter insertion. 23. Having contraindications to undergo a leukapheresis. 24. Have any significant medical or social condition that, in the Investigator's opinion, may interfere with the subject’s optimal participation or compliance with the study procedure. 25. Having history of liver cirrhosis or advanced fibrosis post-transplantation. 26. Receiving prohibited medications that cannot be stopped at study entry. |
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E.5 End points |
E.5.1 | Primary end point(s) |
• Incidence of protocol-defined Dose-Limiting Toxicities (DLTs) within 28 days post infusion. • Incidence and severity of Treatment Emergent Adverse Events (TEAE) including serious adverse events (SAE) according to the Common Terminology Criteria for Adverse Events (CTCAE) version 5.0. |
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E.5.1.1 | Timepoint(s) of evaluation of this end point |
Assessed continuously throughout study. |
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E.5.2 | Secondary end point(s) |
• Proportion of subjects that can be successfully withdrawn from IS defined as the percentage of subjects who have stable Liver Function Tests (LFTs) and are IS free for 2 months following Immunosuppression withdrawal. • Proportion of subjects that can be successfully withdrawn from IS defined as the percentage of subjects who have stable LFTs and are IS free for 1 year following Immunosuppression withdrawal. • Incidence and severity of infections from treatment to 1 year post full wean of all immune suppressive medication. • Proportion of subjects with detectable RCL assessed by polymerase chain reaction (PCR) to vesicular stomatitis virus G glycoprotein (VSV-G) protein [time frame: pre-treatment and Week 14, Week 26 and Week 54. • Proportion of subjects meeting criteria for operational tolerance defined as (1) successfully withdrawn from IS and remaining IS free for 1 year following Immunosuppression withdrawal; (2) having stable LFTs and (3) meeting histological criteria of operational tolerance. • Incidence rate composite efficacy failure from treatment to 1 year following Immunosuppression withdrawal. Composite efficacy failure endpoint is defined as AR, biopsy proven acute rejection (BPAR), reintroduction of IS or graft loss. |
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E.5.2.1 | Timepoint(s) of evaluation of this end point |
Incidence rate of composite efficacy failure will be assessed from treatment through week 82 RCL detection is performed at Day 1, Week 14, Week 24, Week 52, and then LTFU month 6, month 12, month 24, month 36, month 48, month 60, then yearly between years 6 to 15 Infectious disease markers will be assessed at Screening, pre-treatment visits 3 and 4 |
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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 | Yes |
E.6.4 | Safety | Yes |
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 | 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) | Yes |
E.7.1.1 | First administration to humans | Yes |
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
| 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 | 3 |
E.8.5 | The trial involves multiple Member States | Yes |
E.8.5.1 | Number of sites anticipated in the EEA | 6 |
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 |
United Kingdom |
Belgium |
Spain |
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E.8.7 | Trial has a data monitoring committee | Yes |
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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The end of study is defined as the last subject’s visit (LPLV), which is the last visit of the LTFU which is the last subject’s Year 15 evaluation. A subject is considered to have completed the study if they have completed the last visit of the LTFU. Subjects that discontinue from the “Treatment and Primary follow-up" phase before W14 (for part 1) or before W82 (for part 2), will be enrolled into the LTFU as recommended by regulatory authority guidance and after consent has been obtained. |
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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 | 16 |
E.8.9.1 | In the Member State concerned months | 6 |
E.8.9.1 | In the Member State concerned days | |
E.8.9.2 | In all countries concerned by the trial years | 16 |
E.8.9.2 | In all countries concerned by the trial months | 6 |