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A Phase III, Multicentre, Randomised, Double-Blind Study to Assess the Safety and Efficacy of Emactuzumab vs. Placebo in Subjects with Tenosynovial Giant Cell Tumour

Status
Active, not recruiting
Phases
Phase 3
Study type
Interventional
Source
EU CTIS
Registry ID
CTIS2023-510422-32-00
Acronym
SNX-301-020
Enrollment
93
Registered
2024-08-20
Start date
2024-09-10
Completion date
Unknown
Last updated
2025-12-01

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Tenosynovial Giant Cell Tumour

Brief summary

ORR according to RECIST v1.1 by 6 months from initiation of therapy based on independent, blinded central review

Detailed description

Key secondary efficacy endpoint: ORR according to Tumour Volume Score (TVS) at 6 months from initiation of therapy based, Key secondary efficacy endpoint: Change in Patient-Reported Outcomes Measurement Information System -Physical Function Scale (PROMIS-PF) TGCT T-score from baseline to 6 months, Key secondary efficacy endpoint: Change in Physician/Healthcare Professional (HCP)-Reported Joint Mobility Score by goniometry from baseline to 6 months, Key secondary efficacy endpoint: Change in Worst Stiffness Numerical Rating Scale (NRS) from baseline to 6 months, Key secondary efficacy endpoint: Change in Worst Pain NRS from baseline to 6 months, Key secondary efficacy endpoint: Change in EuroQoL 5 Dimension, 5 Level questionnaire (EQ-5D-5L) Visual Analogue Scale (VAS) from baseline to 6 months, Change in PROMIS-PF TGCT T-score from baseline over time, Change in Physician/Healthcare Professional (HCP)-Reported Joint Mobility Score by goniometry from baseline over time, Change in Worst Pain (NRS) from baseline over time, Change in Worst Stiffness NRS from baseline over time (this was previously #6), Change in EQ-5D-5L VAS from baseline over time, Change in EQ-5D-5L 5 dimension scores from baseline over time, Change in Short Form 12-Item Survey version 2 (SF-12 v2) from baseline over time, Changes in PGI severity from baseline over time, PGI-change over time, Duration of response (DoR) as measured by RECIST version 1.1 based on independent, blinded central review, Disease control rate (DCR) at 6 month as per RECIST v1.1 definition based on independent, blinded central review, Time to response (TTR) as measured by RECIST v1.1 based on independent, blinded central review, Time to progression (TTP)as measured by RECIST v1.1 based on independent, blinded central review, Change in (TVS) from baseline over time, Surgical intervention rate, defined as the number of subjects who undergo surgery during the study for TGCT, AES, Deaths, Healthcare utilisation, Ability to work, Serum concentrations of emactuzumab

Interventions

DRUGPlacebo will be presented as a sterile
DRUGcolourless concentrate of excipients only
DRUGbuffered at pH 6.0
DRUGin a single-use 10 mL vial. The IMP and the placebo are indistinguishable.

Sponsors

Synox Therapeutics Limited
Lead SponsorINDUSTRY

Eligibility

Sex/Gender
All
Age
0 Years to No maximum

Design outcomes

Primary

MeasureTime frame
ORR according to RECIST v1.1 by 6 months from initiation of therapy based on independent, blinded central review

Secondary

MeasureTime frame
Key secondary efficacy endpoint: ORR according to Tumour Volume Score (TVS) at 6 months from initiation of therapy based, Key secondary efficacy endpoint: Change in Patient-Reported Outcomes Measurement Information System -Physical Function Scale (PROMIS-PF) TGCT T-score from baseline to 6 months, Key secondary efficacy endpoint: Change in Physician/Healthcare Professional (HCP)-Reported Joint Mobility Score by goniometry from baseline to 6 months, Key secondary efficacy endpoint: Change in Worst Stiffness Numerical Rating Scale (NRS) from baseline to 6 months, Key secondary efficacy endpoint: Change in Worst Pain NRS from baseline to 6 months, Key secondary efficacy endpoint: Change in EuroQoL 5 Dimension, 5 Level questionnaire (EQ-5D-5L) Visual Analogue Scale (VAS) from baseline to 6 months, Change in PROMIS-PF TGCT T-score from baseline over time, Change in Physician/Healthcare Professional (HCP)-Reported Joint Mobility Score by goniometry from baseline over time, Change in Worst P

Countries

Austria, Belgium, France, Italy, Netherlands, Poland, Spain, Sweden

Outcome results

None listed

Source: EU CTIS · Data processed: Feb 4, 2026