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NCT07428993 · ClinicalTrials.gov registry record · Phase 2

Evaluating Efficacy of B7-H3-CAR T Cells Administered at the End of Upfront Map Chemotherapy in Patients With Newly Diagnosed High-Risk Osteosarcoma

A Phase 2 study, sponsored by St. Jude Children's Research Hospital.

Recruiting
Registry status
Phase 2
Development phase
41
Enrollment target

NCT07428993: Recruiting Phase 2 study, sponsored by St. Jude Children's Research Hospital.

NCT07428993 is a Phase 2 study that is actively recruiting participants, run by St. Jude Children's Research Hospital. The registered enrollment target is 41 participants, below the 133-participant average among 30,622 other Phase 2 trials with a reported enrollment target (69% lower). According to ClinicalTrials.gov, the official US trial registry.

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The verdict

NCT07428993, a Phase 2 study, is actively recruiting participants, sponsored by St. Jude Children's Research Hospital.

RECRUITING
Registry status
Phase 2
Development phase
41 participants
Enrollment target

Study Summary

The purpose of this study is to assess the safety, feasibility, and effectiveness of a consolidative B7-H3 CAR T cell therapy in patients with newly diagnosed high-risk osteosarcoma who have undergone upfront standard chemotherapy. Primary Objectives: \- To evaluate 1-year RFS from the time of SJCARB7H3\_41BBL infusion for patients with newly diagnosed metastatic osteosarcoma who received standard chemotherapy. Secondary Objectives: * To evaluate the OS from time of SJCARB7H3\_41BBL infusion for patients with newly diagnosed metastatic osteosarcoma who received standard chemotherapy. * To evaluate the feasibility of delivering SJCARB7H3\_41BBL at the end of standard therapy in patients with newly diagnosed metastatic osteosarcoma. * To describe the safety of autologous SJCARB7H3\_41BBL therapy when delivered at the end of standard therapy in patients with newly diagnosed metastatic osteosarcoma.

Primary Outcome

Event-free participants will be censored at the time of last follow-up. This analysis will report the Kaplan-Meier (KM) curve, along with the 12-month EFS estimate and its 80% confidence interval using the arcsine-square root transformation. Evaluable participants are those who complete standard chemotherapy, receive SJCARB7H3-41BBL and are treated on the regimen used for the Efficacy phase.

Interventions

  • DRUG Cyclophosphamide
  • DRUG Fludarabine
  • DRUG Mesna
  • PROCEDURE Apheresis
  • PROCEDURE SJCARB7H3_41BBL infusion

Trial Details

FieldValue
Enrollment Target 41 participants
Start Date 2026-06
Est. Completion 2035-12
Phase Phase 2

What NCT07428993 shows while recruiting

NCT07428993 is an interventional study that assigns participants to a tested intervention. The registry caps enrollment at 41 participants, a relatively small participant target, below the 133-participant average among 30,622 other Phase 2 trials with a reported enrollment target (69% lower).

The record links to 0 conditions, and to 5 interventions - of which Cyclophosphamide is the first listed.

NCT07428993 does not publish any study locations in the registry export this page uses.

Frequently Asked Questions

What is clinical trial NCT07428993 about?

NCT07428993 is a clinical study titled "Evaluating Efficacy of B7-H3-CAR T Cells Administered at the End of Upfront Map Chemotherapy in Patients With Newly Diagnosed High-Risk Osteosarcoma". The purpose of this study is to assess the safety, feasibility, and effectiveness of a consolidative B7-H3 CAR T cell therapy in patients with newly diagnosed high-risk osteosarcoma who have undergone upfront standard chemotherapy. Primary Objectives: \- To evaluate 1-year RFS from the time of SJC...

What is the current status of trial NCT07428993?

This trial is currently recruiting. It is a Phase 2 study. The enrollment target is 41 participants. The study started on 2026-06. Estimated completion is 2035-12.

What interventions are being tested in trial NCT07428993?

The interventions under investigation include: Cyclophosphamide (DRUG), Fludarabine (DRUG), Mesna (DRUG), Apheresis (PROCEDURE), SJCARB7H3_41BBL infusion (PROCEDURE).

Who is sponsoring clinical trial NCT07428993?

This trial is sponsored by St. Jude Children's Research Hospital, which has 410 total clinical trials registered on ClinicalTrials.gov.

How this trial's enrollment target compares

Where NCT07428993's enrollment target sits among peer trials

41 1352nd of 2000 higher than 639 of 2,000 other Phase 2 trials

participants (enrollment target), bucketed by value

Each bar is a band; taller bars hold more other Phase 2 trials. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.

Source ClinicalTrials.gov registry export · 2026-08-08

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Source: ClinicalTrials.gov NCT07428993, the US trial registry maintained by the National Library of Medicine. NCT07428993 (small enrollment · none site footprint · recruiting) retrieved and formatted by PlainTrial, see methodology.