E.1 Medical condition or disease under investigation |
E.1.1 | Medical condition(s) being investigated |
Recent-onset type 1 diabetes mellitus |
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MedDRA Classification |
E.1.2 Medical condition or disease under investigation |
E.1.2 | Version | 9.1 |
E.1.2 | Level | LLT |
E.1.2 | Classification code | 10045228 |
E.1.2 | Term | Type I diabetes mellitus |
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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 |
The primary objective of the extension study is to assess long-term safety, with particular focus on the development of serious adverse events (SAEs), adverse events of special interest (AESIs) including opportunistic infections and lymphoproliferative disease, and other immediately reportable events (IREs), in subjects with recent-onset T1DM who complete CP-MGA031-01. |
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E.2.2 | Secondary objectives of the trial |
The secondary objectives of the extension study are to: 1) assess long-term efficacy; 2) measure anti-teplizumab antibody levels; and 3) assess PRO (Patient Reported Outcomes). |
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E.2.3 | Trial contains a sub-study | No |
E.3 | Principal inclusion criteria |
1. Complete Protocol CP-MGA031-01 (i.e., all subjects who complete Study Day 728, regardless of how many doses of study drug are received).
2. Provide written informed consent. Written assent will be obtained for subjects under 18 years of age, according to applicable regulations. If possible, written informed consent and/or assent should be obtained for Protocol CP-MGA031-02 at the last visit in CP-MGA031-01. Informed consent must be obtained after all procedures for Study Day 728 have been completed. The investigator is to give the subject ample time to decide about participation in CP-MGA031-02 by informing the subject of the extension study before the last visit of CP-MGA031-01. |
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E.4 | Principal exclusion criteria |
There are no exclusion criteria for this protocol. |
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E.5 End points |
E.5.1 | Primary end point(s) |
Safety Endpoints Safety endpoints will include the number and percentage of subjects who experience an SAE, AESI, or other IRE.
Efficacy Endpoints With regard to HbA1c levels and total daily insulin use, efficacy endpoints will include: • the proportion of subjects who have a total daily insulin dose <0.5 U/kg/day and an HbA1c level <6.5%; • the proportion of subjects who have a total daily insulin dose <0.5 U/kg/day and an HbA1c level <7.0%; • the proportion of subjects who have a total daily insulin dose <0.5 U/kg/day; • the proportion of subjects with an HbA1c level <6.5%; • the proportion of subjects with an HbA1c level <7.0%; and • mean HbA1c levels within each treatment group.
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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 | 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) | 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 | No |
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 | No |
E.8.1.6 | Cross over | No |
E.8.1.7 | Other | Yes |
E.8.1.7.1 | Other trial design description |
observation study after end of double blind treatment |
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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 | Yes |
E.8.2.3.1 | Comparator description |
observation study after end of double blind treatment |
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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 | 1 |
E.8.5 | The trial involves multiple Member States | Yes |
E.8.5.1 | Number of sites anticipated in the EEA | 49 |
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 | Information not present in EudraCT |
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 |
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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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The end of trial is defined as database lock, following the last patient's last visit. |
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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 | 9 |
E.8.9.1 | In the Member State concerned days | 1 |
E.8.9.2 | In all countries concerned by the trial years | 5 |
E.8.9.2 | In all countries concerned by the trial months | 4 |
E.8.9.2 | In all countries concerned by the trial days | 1 |