Status and phase
Conditions
Treatments
Study type
Funder types
Identifiers
About
This is a Phase 3 clinical study, which aims to evaluate the effectiveness of an investigational drug called pexidartinib for the treatment of certain tumors for which surgical removal could cause more harm than good.
The main purpose of this study is to gather information about the investigational drug pexidartinib, which may help to treat tumors of pigmented villonodular synovitis (PVNS) or giant cell tumor of the tendon sheath (GCT-TS).
The study consists of two parts with a follow-up period. In Part 1, eligible study participants will be assigned to receive either pexidartinib or matching placebo for 24 weeks. A number of assessments will be carried out during the course of the study, including physical examinations, blood tests, imaging studies, electrocardiograms, and questionnaires. MRI scans will be used to evaluate the response of the tumors to the treatment. Some subjects, assigned to placebo in Part 1 transitioned to pexidartinib for Part 2.
Then a protocol amendment was written to allow only pexidartinib patients to continue into Part 2. Part 2 is a long-term treatment phase in which all participants receive open-label pexidartinib. There was also a follow-up period added to Part 2.
Enrollment
Sex
Ages
Volunteers
Inclusion and exclusion criteria
Inclusion Criteria
Age ≥ 18 years.
A diagnosis of PVNS or GCT-TS (i) that has been histologically confirmed either by a pathologist at the treating institution or a central pathologist, and (ii) where surgical resection would be associated with potentially worsening functional limitation or severe morbidity (locally advanced disease), with morbidity determined consensually by qualified personnel (eg, two surgeons or a multi-disciplinary tumor board).
Measurable disease of at least 2 cm and otherwise based on RECIST 1.1, assessed from MRI scans by a central radiologist.
Symptomatic disease because of active PVNS or GCT-TS, defined as one or more of the following:
Stable prescription of analgesic regimen during the 2 weeks prior to randomization.
During the 2 weeks prior to randomization, at least 4 of 7 consecutive days of Brief Pain Inventory (BPI) Worst Pain Numeric Rating Scale (NRS) items and Worst Stiffness NRS items completed correctly.
Women of childbearing potential must have a negative serum pregnancy test within the 14-day period prior to randomization. (Where demanded by local regulations, this test may be required within 72 hours of randomization.)
Males and females of childbearing potential are permitted in the study so long as they consent to avoid getting their partner pregnant or becoming pregnant, respectively, by using a highly effective contraception method, as described below, throughout the study and for up to 90 days after completion. Highly effective methods of contraception include: intra-uterine device (non-hormonal or hormonal), bilateral tubal occlusion, vasectomy, sexual abstinence, or barrier methods (eg, condom, diaphragm) used in combination with hormonal methods associated with inhibition of ovulation. Women of non-childbearing potential may be included if they are either surgically sterile or have been postmenopausal for ≥ 1 year. Women who have documentation of at least 12 months of spontaneous amenorrhea and have a follicle stimulating hormone (FSH) level > 40 milli-International units (mIU/mL) will be considered postmenopausal.
Adequate hematologic, hepatic, and renal function, defined by:
Willingness and ability to complete the Worst Pain NRS item, Worst Stiffness NRS item, Patient-reported Outcomes Measurement Information System (PROMIS) Physical Function Scale, and other self-assessment instruments throughout the study.
Willingness and ability to use an electronic diary.
Willingness and ability to provide written informed consent prior to any study-related procedures and to comply with all study requirements.
Exclusion Criteria
Primary purpose
Allocation
Interventional model
Masking
120 participants in 4 patient groups, including a placebo group
Loading...
Data sourced from clinicaltrials.gov
Clinical trials
Research sites
Resources
Legal