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A locally aggressive, diffusely infiltrating tumor, arising in the tendon sheath. It is composed of synovial-like mononuclear cells, hemosiderin-laden macrophages, foam cells, and inflammatory cells. Multinucleated osteoclast-like giant cells are usually present, although in a minority of cases they may be absent or rare. It predominantly affects young adults. Symptoms include joint swelling, pain, and joint effusion.
Biomarker and diagnostic research for tenosynovial giant cell tumor, diffuse type has been reported in the published literature.
No approved treatments are currently available for tenosynovial giant cell tumor, diffuse type. An additional 4 compounds hold orphan drug designation.
While no drugs are FDA-approved specifically for tenosynovial giant cell tumor, diffuse type, some of the following designated compounds may be used off-label in clinical practice. Treatment decisions should be made in consultation with a specialist familiar with this condition.
The following drugs have received orphan drug designation from the FDA for tenosynovial giant cell tumor, diffuse type. Orphan designation reflects regulatory interest and does not indicate approval for treatment.
Brand Name | Generic Name | Sponsor | Designated | Exclusivity End | Designation Status |
|---|---|---|---|---|---|
Cabiralizumab | Cabiralizumab | Five Prime Therapeutics, Inc. | 2016 | — | Withdrawn |
Lacnotuzumab | Lacnotuzumab | Novartis Pharmaceuticals Corp | 2014 | — | Withdrawn |
recombinant humanized monoclonal antibody of the immunoglobulin G1 subclass directed against colony stimulating factor-1 receptor expressed on macrophages | recombinant humanized monoclonal antibody of the immunoglobulin G1 subclass directed against colony stimulating factor-1 receptor expressed on macrophages | Genentech, Inc. | 2014 | — | Withdrawn |
TURALIO | pexidartinib | Daiichi Sankyo, Inc. | 2014 | 2026 | Designated (drug approved for other indication) |
TURALIO is referenced in active clinical trials for tenosynovial giant cell tumor, diffuse type (designated 2014).
Gene therapy approaches for tenosynovial giant cell tumor, diffuse type have been reported in the published literature.
5 trials found
Estimated prevalence: 1-5 in 10,000 (Uncommon).
5 clinical trials registered. Interventions under study include drug therapy and procedural interventions. Pipeline includes 2 PHASE3, 2 PHASE2, 1 PHASE1. Research is sponsored by a mix of industry and academic institutions.
NCT ID | Title | Phase | Sponsor | Status |
|---|---|---|---|---|
[NCT04703322](https://clinicaltrials.gov/study/NCT04703322) | A Study of Pexidartinib in Tenosynovial Giant Cell Tumor in Japan | PHASE2 | Daiichi Sankyo Co., Ltd. | UNKNOWN |
[NCT05804045](https://clinicaltrials.gov/study/NCT05804045) | Study of Pimicotinib (ABSK021) for Tenosynovial Giant Cell Tumor (MANEUVER) | PHASE3 | Abbisko Therapeutics Co, Ltd | UNKNOWN |
[NCT03069469](https://clinicaltrials.gov/study/NCT03069469) | Study of Vimseltinib (DCC-3014) in Patients With Advanced Tumors and Tenosynovial Giant Cell Tumor | PHASE1 | Deciphera Pharmaceuticals, LLC | ACTIVE_NOT_RECRUITING |
[NCT05059262](https://clinicaltrials.gov/study/NCT05059262) | Study of Vimseltinib for Tenosynovial Giant Cell Tumor | PHASE3 | Deciphera Pharmaceuticals, LLC | ACTIVE_NOT_RECRUITING |
[NCT07707882](https://clinicaltrials.gov/study/NCT07707882) | Neoadjuvant Pimicotinib Combined With Surgery Versus Upfront Surgery for Diffuse Tenosynovial Giant Cell Tumor | PHASE2 | Second Affiliated Hospital, Zhejiang University, School of Medicine | NOT_YET_RECRUITING |
190 publications have been identified in PubMed for tenosynovial giant cell tumor, diffuse type. Research spans Case Report / Case Series (44%), Review / Meta-Analysis (17%), and Clinical Trial Publication (12%).
Research Type | Count | % of Total |
|---|---|---|
Patient case studies | 84 | 44% |
Research summaries | 32 | 17% |
Clinical study results | 22 | 12% |
Laboratory research | 17 | 9% |
Disease patterns and progression | 14 | 7% |
Testing and diagnosis research | 11 |
Lin Y (2026). [PMID: 41578522](https://pubmed.ncbi.nlm.nih.gov/41578522/). *Medicine (Baltimore)*. [Case Report / Case Series]
Rachidi S (2026). [PMID: 42170131](https://pubmed.ncbi.nlm.nih.gov/42170131/). *Cureus*. [Case Report / Case Series]
Mosher H (2026). [PMID: 41523664](https://pubmed.ncbi.nlm.nih.gov/41523664/). *JB & JS open access*. [Clinical Trial Publication]
Falke I (2026). [PMID: 41391893](https://pubmed.ncbi.nlm.nih.gov/41391893/). *Semin Radiat Oncol*. [Review / Meta-Analysis]
Wang C (2026). [PMID: 42232324](https://pubmed.ncbi.nlm.nih.gov/42232324/). *Front Surg*. [Case Report / Case Series]
van der Linde RM (2026). [PMID: 41082975](https://pubmed.ncbi.nlm.nih.gov/41082975/). *Modern pathology : an official journal of the United States and Canadian Academy of Pathology, Inc*. [Clinical Trial Publication]
Conway AP (2026). [PMID: 41557367](https://pubmed.ncbi.nlm.nih.gov/41557367/). *Expert review of anticancer therapy*. [Review / Meta-Analysis]
Konstantinou E (2026). [PMID: 41976400](https://pubmed.ncbi.nlm.nih.gov/41976400/). *Cancers (Basel)*. [Case Report / Case Series]
Oliveira V (2026). [PMID: 41351629](https://pubmed.ncbi.nlm.nih.gov/41351629/). *Pediatr Radiol*. [Diagnostic / Biomarker]
De Smet M (2026). [PMID: 41791925](https://pubmed.ncbi.nlm.nih.gov/41791925/). *Bulletin du cancer*. [Case Report / Case Series]
Data assembled from 5 of 12 sources · Last updated Sep 18, 2026, 8:56 PM UTC
European rare disease database
Genetic and Rare Diseases Info Center
New treatment approaches | 7 | 4% |
Other research | 3 | 2% |
AI-curated news mentioning tenosynovial giant cell tumor, diffuse type
Updated Sep 17, 2026
Recent research highlights the physiopathology of tenosynovial giant cell tumor (TGCT) and discusses the emergence of new targeted therapies. This study provides insights into potential treatment advancements for this rare tumor.
Recent research highlights two cases of giant cell tumors of the orbit, including one associated with Paget's disease of bone. These findings contribute to the understanding of the clinical presentation and implications of these rare tumors.