๐Ÿ›๏ธ Verified NIH Record โ€ข Updated 2026-03-13

SYN-004 Safety and Tolerability in Allo-HCT Subjects (NCT04692181)

Phase 1b/2a Evaluation of the Safety and Tolerability of SYN-004 in Adult Allogeneic Hematopoietic Cell Transplantation (Allo-HCT) Recipients

๐Ÿ”ต Active, Not Recruiting Phase1 / Phase2 ๐Ÿ’Š Investigational Drug / Biologic Sponsor: Theriva Biologics, Inc.

๐Ÿฉบ Plain-English Summary (8th-Grade Level)

Study Objectives: 1. To evaluate the safety and tolerability of oral SYN-004 in adult allogeneic HCT (allo-HCT) recipients who develop fever after conditioning therapy and are treated with IV ฮฒ-lactam antibiotics meropenem (MER), piperacillin tazobactam (PIP/TAZO), or cefepime (FEP). 2. To evaluate potential absorption of oral SYN-004 into the systemic circulation of allo-HCT recipients and potential SYN-004-mediated alterations to systemic levels and efficacy of IV MER, PIP/TAZO or FEP. 3. To evaluate potential protective effects of SYN-004 on the intestinal microbiome of allo-HCT recipients treated with IV MER, PIP/TAZO or FEP. 4. To obtain preliminary information on potential therapeutic benefits and patient outcomes of SYN-004 in allo-HCT recipients treated with IV MER, PIP/TAZO or FEP

Who can join: Review the eligibility criteria below.

Location: Washington University โ€” St Louis, Missouri

Age range: 18 Years

๐Ÿงช Interventions in This Study

๐Ÿ“‹ "Do I Qualify?" โ€” 1-Minute Self Screener

Instant Checklist

Full eligibility criteria are available on the official NIH protocol. View the criteria โ†—

๐Ÿ“ All Participating Trial Locations (1 Sites)

  • Washington University โ€” St Louis, Missouri

๐Ÿ’ฐ 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 ยง 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.

Explore by condition: All Acute Graft-Versus-Host Reaction Following Bone Marrow Transplant clinical trials

๐Ÿ’ก 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.
๐Ÿ›๏ธ View Official NIH Record โ†—