TGCT can be a lifelong condition with long-term impacts resulting from both the disease and treatments1-3
TGCT can have a major impact on quality of life (QOL) and physical function2
Symptoms commonly reported by patients included:
- OVER 90%
HAD PAIN4*457 out of 497 patients - 85% HAD LIMITED
RANGE OF MOTION (ROM)4*423 out of 497 patients
*Results from an international, observational, prospective registry of 497 patients initiated in 2022 by TGCT Support, a program of The Life Raft Group.4
Persistent disease may cause cartilage destruction and bone erosion, in addition to functional limitations from the tumor mass, resulting in long‑term pain and joint dysfunction.5
In a multicenter, retrospective cohort study including 45 patients with diffuse TGCT who did not have osteoarthritis at baseline6:
- 18% DEVELOPED RADIOLOGICAL SIGNS OF JOINT DEGENERATION68 out of 45 patients
While surgical resection is considered the standard of care, it is not always curative2,7
Up to72%Recurrence
ratehas been reported after
resection in diffuse TGCT4
There are risks and limitations associated with TGCT surgical resection3,7
Repeated surgical resections can lead to increased morbidity, including acceleration of secondary osteoarthritis, permanent joint damage, and other lifelong consequences3,7
Repeated surgeries and multiple recurrences can turn TGCT into a chronic, lifelong condition.1,2
Historically, there have been few
systemic TGCT treatment options8
Systemic treatment options for TGCT8-12 | |||
Nilotinib | Imatinib | Pexidartinib | |
Approved for TGCT | No | No | FDA-approved for the treatment of adult patients with symptomatic TGCT associated with severe morbidity or functional limitations and not amenable to improvement with surgery |
MOA | Small molecule kinase inhibitor targeting BCR‑ABL, KIT, PDGFR, CSF1R, and DDR1 | Small molecule kinase inhibitor targeting BCR‑ABL, KIT, and PDGFR | Small molecule kinase inhibitor targeting CSF1R, KIT, and FLT3‑ITD |
Study design | Phase 2 study in TGCT | Retrospective, multicenter study in TGCT | Phase 3 study in TGCT |
BCR‑ABL=breakpoint cluster region‑Abelson; CSF1R=colony‑stimulating factor 1 receptor; DDR1=discoidin domain receptor tyrosine kinase; FLT3‑ITD=FMS‑like tyrosine kinase 3 internal tandem duplication; KIT=KIT proto‑oncogene receptor tyrosine kinase; PDGFR=platelet‑derived growth factor receptor; TGCT=tenosynovial giant cell tumor.
“Patients with TGCT require long‑term treatment and need therapeutic options that can improve the symptoms of TGCT... with manageable toxicity profiles.”13
Gelderblom H, et al. Lancet. 2024.