Status:

ACTIVE_NOT_RECRUITING

Study of Emactuzumab for Tenosynovial Giant Cell Tumor (TGCT)

Lead Sponsor:

SynOx Therapeutics Limited

Conditions:

TGCT

Eligibility:

All Genders

12+ years

Phase:

PHASE3

Brief Summary

This is a multicenter, Phase 3, randomised, double-blind, placebo-controlled study, which aims to evaluate the efficacy and safety of the investigational drug emactuzumab for the treatment of patients...

Eligibility Criteria

Inclusion

  • Age \>12 years
  • Biopsy-confirmed (standard of care diagnosis history) local or diffuse TGCT where surgical resection would be associated with predicted worsening functional limitations through surgical joint damage, and/or subject has an anticipated high risk of early recurrence as determined by a multidisciplinary tumour board or equivalent, or any other morbidity associated with the surgery, and/or surgical treatment is not expected to improve the clinical outcomes of the subject.
  • Measurable disease: longest diameter ≥20 mm.
  • Adequate organ and bone marrow function
  • If a woman of childbearing potential (WOCBP), must have a negative pregnancy test prior to starting treatment and agree to use a highly effective method of contraception
  • Participants must have given written consent

Exclusion

  • If a female, the subject is pregnant or breast feeding.
  • Medical conditions, including auto-immune, requiring systemic immunosuppression. Any systemic treatment for these conditions (eg, glucocorticoids) is not allowed within 4 weeks of Screening and during the study.
  • Known metastatic TGCT or other active cancer that requires concurrent or planned treatment
  • Received systemic therapy for TGCT (investigational or approved) targeting CSF-1 or CSF-1R or any multi-tyrosine kinase inhibitor (eg nilotinib and imatinib) within 3 months prior to screening
  • Any surgery, chemotherapy or radiotherapy within 3 months of screening
  • Unresolved clinically significant toxicity from a previous treatment or any history of serious liver toxicity.
  • Current or chronic history of liver disease.
  • Inadequate renal and liver function
  • Systemic antiretroviral therapy within 3 months of baseline
  • Within 6 months of baseline has experienced: clinically significant myocardial infarction, severe/unstable angina pectoris, congestive heart failure New York Heart Association (NYHA) Class III or IV, or pulmonary disease (NYHA Criteria 1994) including severe thromboembolic event; incompletely healed clinically significant wounds, including bone fractures; pathological fracture or significant hypercalcaemia.

Key Trial Info

Start Date :

October 9 2024

Trial Type :

INTERVENTIONAL

Allocation :

ESTIMATED

End Date :

September 30 2027

Estimated Enrollment :

128 Patients enrolled

Trial Details

Trial ID

NCT05417789

Start Date

October 9 2024

End Date

September 30 2027

Last Update

December 23 2025

Active Locations (48)

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Page 1 of 12 (48 locations)

1

NextGen Oncology

Beverly Hills, California, United States, 90212

2

Sarcoma Oncology Research Center, LLC

Los Angeles, California, United States, 90067

3

USC Norris Comprehensive Cancer Center

Los Angeles, California, United States, 90089

4

University of Kansas Cancer Center (Overland Park) - USOR

Overland Park, Kansas, United States, 66210