🏛️ Verified NIH Record • Updated 2026-07-21

GFRα4 CAR T Cells in MTC Patients (NCT04877613)

🔵 Active, Not Recruiting Phase1 💊 Investigational Drug / Biologic Sponsor: University of Pennsylvania

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

This is an open-label phase 1 study to assess the safety and feasibility of autologous T cells expressing a single-chain scFv targeting GFRα4 with tandem TCR/CD3ζ and 4-1BB (TCRζ/4-1BB) co-stimulatory domains (referred to as "CART-GFRa4 cells") in patients with incurable medullary thyroid cancer (MTC).

Who can join: To join this study, participants generally need to meet the listed inclusion criteria (13 items) and avoid the listed exclusions (17 items).

Location: University of Pennsylvania — Philadelphia, Pennsylvania

📋 "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:
  • Evidence of active hepatitis B or hepatitis C infection. The following would not qualify as an active infection, thus would not exclude the subject from participating
  • Positive HBV serology with undetectable viral load and ongoing antiviral prophylaxis for potential HBV reactivation.
  • Positive HCV serology with quantitative PCR for plasma HCV RNA below the lower limit of detection, with or without concurrent antiviral HCV treatment.
  • Any other active, uncontrolled infection.
  • Any prior history of moderate to severe (Grade 2 or higher) pneumonitis.
  • Subjects with chronic kidney disease with Grade 2 or higher renal impairment (eGFR or CrCl 59-30 ml/min/1.73 m2).
  • Class III/IV cardiovascular disability according to the New York Heart Association Classification.
  • Clinically apparent arrhythmia or arrhythmias that are not stable on medical management within two weeks of physician-investigator confirmation of eligibility.
  • Planned concurrent treatment with systemic high dose corticosteroids. Patients may be on a stable low dose of steroids (≤10mg equivalent of prednisone). Use of inhaled steroids is allowable. Corticosteroid treatment as anti-emetic prophylaxis on the day of lymphodepleting chemotherapy administration is allowed per institutional practice.
  • Any moderate to severe skin rash or allergies requiring systemic treatment.
  • Receipt of immune checkpoint inhibitors within 2 months prior to physician-investigator confirmation of eligibility - Retired with Protocol Version 3.

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

📍 All Participating Trial Locations (1 Sites)

  • University of Pennsylvania — Philadelphia, Pennsylvania

💰 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.
🏛️ View Official NIH Record ↗