🏛️ Verified NIH Record • Updated 2026-02-17

Rituximab-pvvr and Abatacept vs Rituximab-pvvr Alone in New Onset Type 1 Diabetes (NCT03929601)

🔵 Active, Not Recruiting Phase2 💊 Investigational Drug / Biologic Sponsor: National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)

🩺 Plain-English Summary (8th-Grade Level)

The study is a two-arm, multicenter, double-blinded clinical trial testing sequential therapy with rituximab-pvvr followed by abatacept versus rituximab-pvvr alone in new onset T1D. The primary objective is to test whether the C-peptide response to a 2-hour mixed meal tolerance test, will be improved in participants with new onset T1D who are treated with Abatacept after Rituximab-pvvr compared to those treated with Rituximab-pvvr and placebo 24 months after enrollment.

Who can join: To join this study, participants generally need to meet the listed inclusion criteria (18 items) and avoid the listed exclusions (28 items).

Location: Childrens Hospital of Orange County — Orange, California

Age range: 8 Years to 45 Years

📋 "Do I Qualify?" — 1-Minute Self Screener

Instant Checklist

Check every box below. If you can check all of them, you may meet the study's basic screening requirements (final eligibility is confirmed by the site team).

Usually NOT eligible if any of the following apply:

  • Exclusion Criteria:
  • One or more screening laboratory values as stated:
  • Leukocytes \<3,000/μL
  • Neutrophils \<1,500/μL
  • Lymphocytes \<800/μL
  • Platelets \<100,000/μL
  • Hemoglobin \<6.2 mmol/L (10.0 g/dL)
  • Potassium \>5.5 mmol/L or \<3.0 mmol/L
  • Sodium \>150 mmol/L or \<130 mmol/L
  • AST or ALT ≥ 2.5 times the upper limits of normal
  • Total bilirubin ≥ 1.5 times upper limit of normal, except in the case of Gilbert's disease
  • History of immune deficiency

🔍 Extracted verbatim from the official NIH eligibility criteria. Always confirm with the study coordinator.

📍 All Participating Trial Locations (19 Sites)

  • Childrens Hospital of Orange County — Orange, California
  • Stanford University — Palo Alto, California
  • University of California San Francisco — San Francisco, California
  • Barbara Davis Center for Childhood Diabetes — Aurora, Colorado
  • Yale University — New Haven, Connecticut
  • University of Florida — Gainesville, Florida
  • University of Miami — Maimi, Florida
  • Indiana University - Riley Hospital for Children — Indianapolis, Indiana
  • The Children's Mercy Hospital — Kansas City, Kansas
  • Joslin Diabetes Center — Boston, Massachusetts
  • University of Minnesota — Minneapolis, Minnesota
  • Columbia University — New York, New York
  • University of Pittsburg — Pittsburgh, Pennsylvania
  • Sanford Children's Specialty Clinic — Sioux Falls, South Dakota
  • Vanderbilt Eskind Diabetes Center — Nashville, Tennessee
  • University of Texas Southwestern — Dallas, Texas
  • Benaroya Research Institute — Seattle, Washington
  • Queensland Children's Hospital — South Brisbane, Queensland
  • Walter and Eliza Hall Institute of Medical Research — Melbourne, Victoria

💰 Cost, Insurance & Patient Rights

  • 100% Free Items: The investigational treatment and protocol-required procedures are supplied at zero cost by the sponsor.
  • Routine Patient Care: Under federal law (ACA § 2709) and many state statutes, routine care costs are covered during participation.
  • Voluntary Participation: You may withdraw at any time without affecting your standard medical care.

💡 How to Participate

  1. Check the checklist above to see if you may qualify.
  2. Review the official NIH record below to find the coordinating site.
  3. Ask about the visit schedule, what is covered at no cost, and any travel support.
  4. Confirm with your own doctor before making a decision.
🏛️ View Official NIH Record ↗