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NCT04996004 · ClinicalTrials.gov registry record · Phase 2

A Study to Learn About the Study Medicine (Called Ontorpacept or TTI-621) Given Alone and in Combination With Doxorubicin in People With Leiomyosarcoma

A Phase 2 study, sponsored by Pfizer.

Terminated
Registry status
Phase 2
Development phase
76
Enrollment target

NCT04996004 is a Phase 2 study that was terminated before completion, run by Pfizer. The registered enrollment target is 76 participants.

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The verdict

NCT04996004, a Phase 2 study, was terminated before completion, sponsored by Pfizer.

TERMINATED
Registry status
Phase 2
Development phase
76 participants
Enrollment target

Study Summary

The purpose of this study is to learn about the safety and effects of the study medicine (called Ontorpacept or TTI-621) when given alone and when given in combination with doxorubicin for people with leiomyosarcoma. Leiomyosarcoma is a tumor of the smooth muscles. This study is seeking participants who have: * leiomyosarcoma that is advanced or has spread to other parts of the body (metastatic) * not received prior treatment with anthracyclines (a drug commonly used in patients with some kinds of cancer, including leiomyosarcoma) * not received more than one prior treatment for their leiomyosarcoma During the first 18 weeks of this study, participants will receive doxorubicin by IV infusion (given directly into a vein) at the study clinic every 3 weeks for a total of 6 doses. Participants will also receive Ontorpacept (TTI-621) by IV infusion at the study clinic on the same day as doxorubicin and again one week later for the first 18 weeks. After the first 18 weeks, participants will stop receiving doxorubicin but will continue receiving Ontorpacept (TTI-621) as IV infusion every 14 days at the study clinic. They will keep receiving Ontorpacept (TTI-621) until their cancer is no longer responding to treatment. We will examine the experiences of participants receiving Ontorpacept (TTI-621) in combination with doxorubicin in the first 18 weeks and then Ontorpacept (TTI-621) by itself after the doxorubicin is stopped. This will help us determine if the study medicine Ontorpacept (TTI-621) given with doxorubicin and then by itself is safe and effective. Participants will be involved in the study for approximately one year, depending on how their cancer responds to the study treatment. They will have study visits about 12 times in the first 18 weeks (when the study medicine Ontorpacept is given with doxorubicin) and then every two weeks after the doxorubicin is stopped and the study medicine Ontorpacept (TTI-621) is given by itself.

Interventions

  • DRUG Doxorubicin
  • DRUG Ontorpacept (TTI-621)

Trial Details

FieldValue
Enrollment Target 76 participants
Start Date 2021-06-22
Est. Completion 2023-12-07
Phase Phase 2

Sponsor

Pfizer

1,845 total trials

What the Registry Record Tells You About NCT04996004

The ClinicalTrials.gov registry entry for NCT04996004 describes a study currently listed as terminated, categorized as Phase 2. The registered enrollment target is 76 participants, a figure that helps gauge the scale of data the investigators plan to collect. The listed sponsor is Pfizer, which has 1,845 total studies on file at ClinicalTrials.gov.

The record links to 0 conditions, and to 2 interventions - of which Doxorubicin is the first listed.

NCT04996004 reports 0 study locations.

Frequently Asked Questions

What is clinical trial NCT04996004 about?

NCT04996004 is a clinical study titled "A Study to Learn About the Study Medicine (Called Ontorpacept or TTI-621) Given Alone and in Combination With Doxorubicin in People With Leiomyosarcoma". The purpose of this study is to learn about the safety and effects of the study medicine (called Ontorpacept or TTI-621) when given alone and when given in combination with doxorubicin for people with leiomyosarcoma. Leiomyosarcoma is a tumor of the smooth muscles. This study is seeking participant...

What is the current status of trial NCT04996004?

This trial is currently terminated. It is a Phase 2 study. The enrollment target is 76 participants. The study started on 2021-06-22. Estimated completion is 2023-12-07.

What interventions are being tested in trial NCT04996004?

The interventions under investigation include: Doxorubicin (DRUG), Ontorpacept (TTI-621) (DRUG).

Who is sponsoring clinical trial NCT04996004?

This trial is sponsored by Pfizer, which has 1,845 total clinical trials registered on ClinicalTrials.gov.

Data sourced from official public datasets. See our methodology for details. Retrieved and formatted by PlainTrial

Every figure on PlainTrial is rendered directly from the ClinicalTrials.gov registry, no number is typed in by an editor. This page mirrors this trial's own ClinicalTrials.gov registry record, live from the dataset. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.