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A randomized, double-blind, Phase 3 study to investigate efficacy and safety of teplizumab compared with placebo in participants 1 to 25 years of age with recently diagnosed Stage 3 Type 1 Diabetes (T1D) (βETA PRESERVE)

Status
Recruiting
Phases
Phase 3
Study type
Interventional
Source
EU CTIS
Registry ID
CTIS2024-519494-19-00
Acronym
EFC18241
Enrollment
467
Registered
2025-11-25
Start date
2025-12-22
Completion date
Unknown
Last updated
2025-11-30

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Nutritional and metabolic diseases

Brief summary

For United States (US) and non-European Union (EU) countries: Glycated hemoglobin (HbA1c) change from baseline, For US and non-EU countries: Total number of days without prandial insulin use, For EU countries: Change from baseline in mean 2 hours mixed meal tolerance test (MMTT) stimulated C-peptide concentration, calculated from Area Under the Curve (AUC) in participants 5 years and older, For EU countries: HbA1c change from baseline, For EU countries: Total number of days without prandial insulin use

Detailed description

Change from baseline in mean 2 hours MMTT stimulated C-peptide concentration, calculated from AUC, Participants remaining C-peptide positive (2 hours MMTT stimulated peak C-peptide concentration ≥0.2 nmol/L), Incidence of participants with HbA1c ≤6.5% and requiring ≤0.25 IU/kg/day of insulin, Change from baseline in Time-in-Range (TIR) (70-180 mg/dL blood glucose) assessed by continuous glucose monitoring (CGM), Number of level 2 and 3 (according to American Diabetes Association) hypoglycemic events per participant year (event rates), Number of participants with treatment emergent adverse events (TEAEs), serious adverse events (SAEs), adverse events of special interest (AESIs) and TEAEs leading to treatment discontinuation, Teplizumab PK parameters: Maximum concentration of teplizumab [Cmax], Teplizumab PK parameters: Area under the curve [AUC] and [AUClast], Incidence of antidrug-antibodies (ADAs)

Interventions

Sponsors

Sanofi-Aventis Recherche & Developpement
Lead SponsorINDUSTRY

Eligibility

Sex/Gender
All
Age
0 Years to 64 Years

Design outcomes

Primary

MeasureTime frame
For United States (US) and non-European Union (EU) countries: Glycated hemoglobin (HbA1c) change from baseline, For US and non-EU countries: Total number of days without prandial insulin use, For EU countries: Change from baseline in mean 2 hours mixed meal tolerance test (MMTT) stimulated C-peptide concentration, calculated from Area Under the Curve (AUC) in participants 5 years and older, For EU countries: HbA1c change from baseline, For EU countries: Total number of days without prandial insulin use

Secondary

MeasureTime frame
Change from baseline in mean 2 hours MMTT stimulated C-peptide concentration, calculated from AUC, Participants remaining C-peptide positive (2 hours MMTT stimulated peak C-peptide concentration ≥0.2 nmol/L), Incidence of participants with HbA1c ≤6.5% and requiring ≤0.25 IU/kg/day of insulin, Change from baseline in Time-in-Range (TIR) (70-180 mg/dL blood glucose) assessed by continuous glucose monitoring (CGM), Number of level 2 and 3 (according to American Diabetes Association) hypoglycemic events per participant year (event rates), Number of participants with treatment emergent adverse events (TEAEs), serious adverse events (SAEs), adverse events of special interest (AESIs) and TEAEs leading to treatment discontinuation, Teplizumab PK parameters: Maximum concentration of teplizumab [Cmax], Teplizumab PK parameters: Area under the curve [AUC] and [AUClast], Incidence of antidrug-antibodies (ADAs)

Countries

Belgium, Czechia, France, Germany, Italy, Netherlands, Poland, Spain

Outcome results

None listed

Source: EU CTIS · Data processed: Feb 4, 2026