Siplizumab in T1DM
Public ClinicalTrials.gov record NCT05574335. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.
Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.
Official title
A T Cell Phenotype Signature Driven Dose Finding Study With Siplizumab in Type 1 Diabetes Mellitus (ITN095AI)
Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
This is a multicenter, Phase Ib, open-label, siplizumab dose-finding study in individuals aged 8-45 years with a Type 1 diabetes mellitus (T1DM) diagnosis. within 18 months of V0. Participants will be randomized 1:1:1:1 to one of four possible siplizumab dosing arms. All dosing arms will receive weekly siplizumab doses for a total of 12 weeks. After the completion of treatment, participants will undergo follow-up visits at weeks 12, 24, 36 and 52 which include longitudinal MMTTs. If indicated, participants will enter into long-term safety monitoring for up to an additional 48 weeks. Blood samples for mechanistic analyses will be obtained during the treatment phase and thereafter. Adults aged 18- 45 will be enrolled initially at the study sites. The primary objective is to identify a safe, metabolically favorable, dosing regimen for siplizumab in patients with type 1 diabetes that induces changes in T cell phenotypes observed with alefacept therapy in new-onset T1DM. The secondary objectives are to: 1. Assess the safety profile of siplizumab in recently diagnosed T1DM. 2. Assess the effects of siplizumab on residual beta cell function in recently diagnosed T1DM participants.
Study identification
- NCT ID
- NCT05574335
- Recruitment status
- Terminated
- Study type
- Interventional
- Phase
- Phase 1, Phase 2
- Enrollment
- 8 participants
Conditions and interventions
Conditions
Eligibility (public fields only)
- Age range
- 8 Years to 45 Years
- Sex
- All
- Healthy volunteers
- Healthy volunteers not accepted
This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.
Study timeline
- Start date
- May 17, 2023
- Primary completion
- May 13, 2025
- Completion
- Oct 19, 2025
- Last update posted
- Jul 27, 2026
2023 – 2025
United States locations
- U.S. sites
- 5
- U.S. states
- 5
- U.S. cities
- 5
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| University of Colorado School of Medicine: Barbara Davis Center for Diabetes | Aurora | Colorado | 80045 | — |
| University of Iowa Children's Hospital: Department of Pediatrics, Pediatric Endocrinology and Diabetes | Iowa City | Iowa | 52242 | — |
| Columbia University Medical Center: Naomi Berrie Diabetes Center | New York | New York | 10032 | — |
| University of Texas Southwestern Medical Center: Department of Internal Medicine, Division of Endocrinology | Dallas | Texas | 75390 | — |
| Benaroya Research Institute at Virginia Mason: Diabetes Research Program | Seattle | Washington | 98101 | — |
Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.
About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT05574335, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
- What this page does not do
- No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
- Where the data comes from
- Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
- Last refresh
- Last update posted Jul 27, 2026 · Synced Sep 7, 2026
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Open the official record
The complete protocol, eligibility criteria, and contact information for NCT05574335 live on ClinicalTrials.gov.