| E.1 Medical condition or disease under investigation | 
| E.1.1 | Medical condition(s) being investigated | 
| Cerebral Adrenoleukodystrophy (CALD) |  | 
| E.1.1.1 | Medical condition in easily understood language | 
| Cerebral Adrenoleukodystrophy (CALD) |  | 
| 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 | 20.0 |  
| E.1.2 | Level | PT |  
| E.1.2 | Classification code | 10051260 |  
| E.1.2 | Term | Adrenoleukodystrophy |  
| E.1.2 | System Organ Class | 10010331 - Congenital, familial and genetic disorders |  | 
| 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 | 
| - Monitor for long-term safety of the Lenti-D Drug Product (also known as elivaldogene autotemcel; hereafter referred to as eli-cel) administered in parent clinical studies. - Monitor for long-term efficacy of eli - cel administered in parent clinical studies.
 |  | 
| E.2.2 | Secondary objectives of the trial |  | 
| E.2.3 | Trial contains a sub-study | No | 
| E.3 | Principal inclusion criteria | 
| 1.Provision of written informed consent for this study by the subject or subject's parent(s)/ legal guardian(s) and written informed assent by subject, if applicable 2.Have received Lenti-D Drug Product in a parent clinical study.
 3.Able to comply with study requirements.
 
 |  | 
| E.4 | Principal exclusion criteria | 
| There are no exclusion criteria for this Study. |  | 
| E.5 End points | 
| E.5.1 | Primary end point(s) | 
| • Major functional disability (MFD)-free survival over time through Year 15 post-drug product infusion Note: interim analyses (including evaluation of MFD-free survival [i.e., subjects who were alive without an MFD or need for hematopoietic stem cell transplant [HSCT]; also referred to as event-free survival by FDA) will occur once all subjects have completed 5 years and 10 years of post infusion follow-up (see Section 7.6.1).
 • The number of subjects with malignancies through 15 years post-drug product infusion
 • The number of subjects who experience graft versus host disease (GVHD) through 15 years post-drug product infusion
 • The number of subjects with immune-related AEs (e.g., autoimmune disorders, GVHD, opportunistic infections, HIV) through 15 years post drug product infusion
 • The number of subjects with new or worsening hematologic disorders through 15 years post-drug product infusion
 • The number of subjects with new or worsening neurologic disorders through 15 years post-drug product infusion
 |  | 
| E.5.1.1 | Timepoint(s) of evaluation of this end point | 
| Visits are scheduled every 4 months through their post-drug product infusion Year 10 Visit, and then every 6 months from the Year 10.5 Visit through their post-drug product infusion Year 15 Visit. |  | 
| E.5.2 | Secondary end point(s) | 
| • The number of subjects who undergo subsequent stem cell transplantation (i.e. second HSC infusion) through 15 years post-drug product infusion • Change from Baseline (defined in parent study) through Year 15 post drug product infusion in neurologic function score (NFS)
 • The number of subjects without gadolinium enhancement (GdE) on MRI over time through Year 15 post-drug product infusion
 |  | 
| E.5.2.1 | Timepoint(s) of evaluation of this end point | 
| Visits are scheduled every 4 months through their post-drug product infusion Year 10 Visit, and then every 6 months from the Year 10.5 Visit through their post-drug product infusion Year 15 Visit. |  | 
| 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 | Yes | 
| E.6.8 | Bioequivalence | No | 
| E.6.9 | Dose response | No | 
| E.6.10 | Pharmacogenetic | Yes | 
| 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 | No | 
| E.8.1.1 | Randomised | No | 
| E.8.1.2 | Open | No | 
| 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 |  | 
| 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 | 5 | 
| 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 | 
| Argentina |  
| Australia |  
| Brazil |  
| Canada |  
| United States |  
| France |  
| Germany |  
| Italy |  
| United Kingdom |  | 
| 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 | 13 | 
| E.8.9.1 | In the Member State concerned months | 0 | 
| E.8.9.1 | In the Member State concerned days | 0 | 
| E.8.9.2 | In all countries concerned by the trial years | 13 | 
| E.8.9.2 | In all countries concerned by the trial months | 0 | 
| E.8.9.2 | In all countries concerned by the trial days | 0 |