An Expanded Access Program for SYN023 in Rabies Treatment

July 16, 2026 updated by: Synermore Biologics (Suzhou) Co., Ltd.

Sponsor-Initiated Expanded Access Program (SYN023-EAP-001) for SYN023 (Zamerovimab + Mazorelvimab): Compassionate Use of SYN023 in Patients With Confirmed or Suspected Life-Threatening Rabies Infection

This sponsor-initiated Expanded Access Program provides compassionate-use SYN023, a dual monoclonal antibody cocktail (zamerovimab + mazorelvimab) targeting rabies virus glycoprotein, for US patients with confirmed or suspected life-threatening rabies lacking adequate alternative therapies.

Study Overview

Status

Available

Conditions

Intervention / Treatment

Detailed Description

The goal of this expanded access program is to learn about the safety and clinical outcomes of SYN023 in patients with confirmed or suspected rabies infection who receive SYN023 as compassionate-use treatment for life-threatening rabies. The main question it aims to answer is:

Does SYN023 provide clinical benefit and demonstrate manageable safety profiles in patients with confirmed or suspected life-threatening rabies when administered alongside standard rabies care? Participants receiving SYN023 as part of their emergency compassionate-use care for rabies will have clinical safety, serologic and disease course data collected throughout their treatment course to support continuous pharmacovigilance and future SYN023 clinical development.

Study Type

Expanded Access

Expanded Access Type

  • Individual Patients
  • Intermediate-size Population

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

  • Child
  • Adult
  • Older Adult

Accepts Healthy Volunteers

N/A

Description

Inclusion Criteria:

  • Must be ineligible for or lack access to other investigational or approved therapies
  • Must have no available alternative curative treatment options

Exclusion Criteria:

No standardized universal exclusion criteria are predefined for this Expanded Access Program.

- Clinical contraindications identified on an individual basis by the treating critical care clinician

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Synermore Biologics (Suzhou) Co., Ltd.

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Registration Dates

First Submitted

July 9, 2026

First Submitted That Met QC Criteria

July 9, 2026

First Posted (Actual)

July 16, 2026

Study Record Updates

Last Update Posted (Actual)

July 17, 2026

Last Update Submitted That Met QC Criteria

July 16, 2026

Last Verified

July 1, 2026

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • SYN023-EAP-001

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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