Tecovirimat Intravenous Treatment for Orthopox Virus Exposure (TPOXX IV)

March 5, 2025 updated by: U.S. Army Medical Research and Development Command

EXPANDED ACCESS PROTOCOL FOR TREATMENT OF INDIVIDUALS FOLLOWING EXPOSURE TO ORTHOPOX VIRUSES WITH TPOXX IV (TECOVIRIMAT INJECTION, 10 mg/mL)

  • To provide a therapeutic option for patients not able to take the oral formulation of TPOXX (e.g., cannot swallow, vomiting) and who have confirmed or suspected (based on clinical signs and symptoms with known exposure while laboratory confirmation may be pending) orthopox virus infections OR who have a significant vaccinia adverse reaction (as defined in the protocol) resulting from vaccinia vaccination, secondary transmission, or other exposure;
  • To collect data on the safety of TPOXX IV (tecovirimat injection, 10 mg/mL).

Study Overview

Status

No longer available

Conditions

Intervention / Treatment

Study Type

Expanded Access

Expanded Access Type

  • 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:

  1. Have a confirmed or suspected (based on clinical signs and symptoms with known or suspected exposure and/or positive or pending laboratory confirmation) orthopox virus infection.

    Note: Patients with a negative orthopox virus diagnostic test but with epidemiological and clinical evidence of an orthopox viral infection, especially those with evidence of clinical disease progression, may be included. Primary/Treating physician may consult with sponsor's Subject Matter Expert; OR Have developed a significant vaccinia adverse reaction (e.g., eczema vaccinatum, progressive vaccinia, generalized vaccinia that is severe or persistent, and select cases of inadvertent inoculation due to severe pain related to mucosal involvement, ocular involvement) resulting from vaccination, secondary transmission, or other exposure;

  2. Be DoD-affiliated personnel (including active and reserve component service members, US civilian employees, contractors, other US personnel, and dependents, as well as allied military forces and local nationals) who have been granted access to the medical facility;
  3. Unable to take the oral formulation of TPOXX (e.g., unable to swallow capsules or take medication powder dissolved in soft food or liquid, vomiting);
  4. Is available for clinical follow-up for duration of the treatment and follow-up period;
  5. Females of childbearing potential must use a highly effective method of contraception during treatment and for 30 days after the last dose of drug. Male patients with a female partner of childbearing potential must use an acceptable method of contraception and refrain from donating sperm during treatment and for 30 days after the last dose.

Exclusion Criteria:

  1. Hypersensitivity to tecovirimat;
  2. Unable or unwilling to cooperate with the requirements of the protocol;
  3. Breastfeeding women: Nursing mothers will be counseled that tecovirimat has not been studied in breast-feeding women. Women who choose to continue breastfeeding will not be enrolled in this protocol. However, if a patient elects to stop breastfeeding for the duration of the study until 30 days after the last dose of the TPOXX IV, she may be enrolled.

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

U.S. Army Medical Research and Development Command

Collaborators

SIGA Technologies

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

April 27, 2022

First Submitted That Met QC Criteria

May 16, 2022

First Posted (Actual)

May 19, 2022

Study Record Updates

Last Update Posted (Actual)

March 25, 2025

Last Update Submitted That Met QC Criteria

March 5, 2025

Last Verified

March 1, 2025

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

  • S-21-04
  • M-10922 (Other Identifier: USAMRDC)

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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