> Trialight public data. Index of pages: https://trialight.com/llms.txt
> Web page: https://trialight.com/data/condition/undifferentiated-pleomorphic-sarcoma-8ce503dc-2130-5bc0-8cb5-cd8dfa2b9ef6
> Record changed: 2026-10-13

# Undifferentiated pleomorphic sarcoma

Therapeutic area

Oncology

Rare disease

Yes

## Definition and classification

**Definition**

An undifferentiated soft tissue sarcoma characterized by the presence of a pleomorphic malignant cellular infiltrate. It is also known as malignant fibrous histiocytoma.

**Genetic basis**

No

**Non-human condition**

No

**Rare disease**

Yes

**Listing at source**

Listed

**Condition name**

Undifferentiated pleomorphic sarcoma

**Therapeutic area**

Oncology

### Alternative names (27)

- undifferentiated pleomorphic sarcoma
- MFH
- Storiform-pleomorphic MFH
- Storiform-pleomorphic fibrous histiocytoma
- Storiform-pleomorphic malignant fibrous histiocytoma
- UPS
- Unclassified Pleomorphic sarcoma (formerly "MFH")
- Unclassified Pleomorphic sarcoma (formerly "malignant fibrous histiocytoma")
- adult malignant fibrous histiocytoma
- adult unclassified pleomorphic sarcoma
- adult undifferentiated pleomorphic sarcoma
- fibrous histiocytoma, malignant
- fibrous histiocytoma, malignant (morphologic abnormality)
- fibroxanthosarcoma
- fibroxanthosarcoma (morphologic abnormality)
- histiocytoma, fibrous, malignant
- malignant fibrous cytoma
- malignant fibrous histiocytoma
- malignant fibrous histiocytoma of soft tissue and bone
- malignant fibrous histiocytoma of the soft tissue and bone
- malignant fibroxanthoma
- unclassified pleomorphic sarcoma
- undifferentiated pleomorphic sarcoma
- undifferentiated pleomorphic soft tissue sarcoma
- malignant fibrohistiocytic tumors

And 2 more, listed on the interactive page.

## Clinical profile

**Severity**

Severe

### All therapeutic areas (2)

- Oncology
- Rheumatology

## Identifiers

**MONDO ID**

MONDO:0002142

Source: [monarchinitiative.org](https://monarchinitiative.org/MONDO:0002142)

**Parent condition**

MONDO:0005509

## Related records

### Broader conditions (23)

- Bone cancer
- [Bone disorder](https://trialight.com/data/condition/bone-disorder-83c4c003-c8df-50f7-8829-fbbb5d5adf76.md)
- Bone neoplasm
- Bone sarcoma
- [Cancer](https://trialight.com/data/condition/cancer-703b1dfc-4812-50eb-83f4-d7a205d16bdb.md)
- Cancer or benign tumor
- Connective and soft tissue neoplasm
- [Connective tissue disorder](https://trialight.com/data/condition/connective-tissue-disorder-3df54ecd-c080-5b4c-b60d-fab4846ea17b.md)
- Connective tissue neoplasm
- Disease
- Disease by body system or component
- Disease by etiologic mechanism
- Histiocytoma
- Human disease
- Malignant soft tissue neoplasm
- Musculoskeletal system cancer
- Musculoskeletal system disorder
- Neoplasm
- Neoplastic disease or syndrome
- [Sarcoma](https://trialight.com/data/condition/sarcoma-96102668-50d9-5d69-b154-719396a38dc1.md)

### Narrower conditions (3)

- Cutaneous undifferentiated pleomorphic sarcoma
- Malignant giant cell tumor of soft parts
- Undifferentiated pleomorphic sarcoma, inflammatory variant

### Trials (90)

- [A Phase 1, First-in-human Study of OKN4395 and Pembrolizumab in Patients With Solid Tumors](https://trialight.com/data/trial/a-phase-1-first-in-human-study-of-okn4395-and-pembrolizumab-d5f0ed43-9c3d-4e12-976c-c1165c2cdf30.md)
- A Phase 2 Study of 9-ING-41Combined With Chemotherapy in Adolescents and Adults With Advanced Sarcomas
- A Phase II Study of Eribulin and Pembrolizumab in Soft Tissue Sarcomas
- A Study of Bevacizumab in Combination With Chemotherapy for Treatment of Osteosarcoma
- A Study of Doxorubicin Plus Olaratumab (LY3012207) in Participants With Advanced or Metastatic Soft Tissue Sarcoma
- A Study of Lifileucel (Tumor-infiltrating Lymphocytes) in Adults With Advanced Soft Tissue Sarcoma
- A Study of LY3435151 in Participants With Solid Tumors
- A Study of Pembrolizumab Plus Local Chemotherapy Using Isolated Limb Infusion (ILI) for Patients With Sarcoma in the Arm or Leg
- A Study of XmAb®23104 in Subjects With Selected Advanced Solid Tumors (DUET-3)
- ABBV-085, an Antibody Drug Conjugate, in Subjects With Advanced Solid Tumors
- Alisertib in Treating Patients With Advanced or Metastatic Sarcoma
- Autologous Dendritic Cell Vaccine in Patients With Soft Tissue Sarcoma
- AZD0530 in Treating Patients With Recurrent Locally Advanced or Metastatic Soft Tissue Sarcoma
- BI 2536 in Treating Patients With Recurrent or Metastatic Solid Tumors
- Brightline-3: A Study to Find Out Whether Brigimadlin in Combination With Ezabenlimab Helps People With Advanced Soft Tissue Sarcoma
- Brostallicin in Treating Patients With Locally Advanced or Metastatic Soft Tissue Sarcoma
- Brostallicin or Doxorubicin as First-Line Therapy in Treating Patients With Relapsed, Refractory, or Metastatic Soft Tissue Sarcoma
- CAB-AXL-ADC Safety and Efficacy Study in Adult and Adolescent Patients With Sarcoma
- Celecoxib and Radiation Therapy in Treating Patients With Stage II or Stage III Soft Tissue Sarcoma of the Arm, Hand, Leg, or Foot That Has Been Removed by Surgery
- Cixutumumab and Doxorubicin Hydrochloride in Treating Patients With Unresectable, Locally Advanced, or Metastatic Soft Tissue Sarcoma

### Drugs in development (8)

- [Catequentinib](https://trialight.com/data/asset/catequentinib-d03b78d4-b5a5-4756-bbf6-e56f5ec2b7dc.md) Phase 2
- [Ipilimumab](https://trialight.com/data/asset/ipilimumab-06c42b29-e333-4f3c-94fe-dbea5fe48cd4.md) Phase 2
- [Nivolumab](https://trialight.com/data/asset/nivolumab-d2e207ca-a7d1-43d0-987f-43ef7eef8f1b.md) Phase 2
- [Palbociclib](https://trialight.com/data/asset/palbociclib-2686787c-5f11-4b65-9a5b-549fcd2af644.md) Phase 1
- [Pembrolizumab](https://trialight.com/data/asset/pembrolizumab-f9ac1934-47a5-4a53-ae55-20b7d53d8815.md) Phase 1
- Samrotamab vedotin Phase 1
- [Sintilimab](https://trialight.com/data/asset/sintilimab-e2618eaf-967e-401c-aed4-7546875a6d3e.md) Phase 2
- [Toripalimab](https://trialight.com/data/asset/toripalimab-92e6b353-a6c4-4e1e-a99f-559038ba7177.md) Phase 2

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