Leiomyosarcoma
MONDO:0005058An uncommon, aggressive malignant smooth muscle neoplasm, usually occurring in post-menopausal women. It is characterized by a proliferation of neoplastic spindle cells. Morphologic variants include epithelioid, granular cell, inflammatory and myxoid leimyosarcomas.
Also known as: Leiomyosarcomas, leiomyosarcoma, leiomyosarcoma (excluding uterine leiomyosarcoma), leiomyosarcoma - not uterine, leiomyosarcoma, malignant
2874 clinical trials for this condition and its sub-types, 62 tagged with Leiomyosarcoma itself.
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Sub-types of Leiomyosarcoma
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Leiomyosarcoma of the corpus uteri 9 trials
2 sub-types
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Ovary leiomyosarcoma 2 trials
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Retroperitoneal leiomyosarcoma 2 trials
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Inflammatory leiomyosarcoma 1 trial
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Small intestine leiomyosarcoma 1 trial
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Bone leiomyosarcoma 0 trials
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Breast leiomyosarcoma 0 trials
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1 sub-type
- Granular cell leiomyosarcoma 0 trials
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Colon leiomyosarcoma 0 trials
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Conventional leiomyosarcoma 0 trials
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Cutaneous leiomyosarcoma 0 trials
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Epithelioid leiomyosarcoma 0 trials
1 sub-type
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Esophagus leiomyosarcoma 0 trials
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Fallopian tube leiomyosarcoma 0 trials
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Gallbladder leiomyosarcoma 0 trials
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Gastric leiomyosarcoma 0 trials
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Heart leiomyosarcoma 0 trials
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Kidney leiomyosarcoma 0 trials
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Laryngeal leiomyosarcoma 0 trials
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Leiomyosarcoma of the cervix uteri 0 trials
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Liver leiomyosarcoma 0 trials
1 sub-type
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Lung leiomyosarcoma 0 trials
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Mediastinum leiomyosarcoma 0 trials
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Myxoid leiomyosarcoma 0 trials
1 sub-type
- Uterine corpus myxoid leiomyosarcoma 0 trials
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Prostate leiomyosarcoma 0 trials
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Pulmonary artery leiomyosarcoma 0 trials
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Pulmonary vein leiomyosarcoma 0 trials
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Rectum leiomyosarcoma 0 trials
1 sub-type
- Anus leiomyosarcoma 0 trials
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Superior vena cava leiomyosarcoma 0 trials
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Vagina leiomyosarcoma 0 trials
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Vulvar leiomyosarcoma 0 trials
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Virus plus radiation may shrink sarcomas before surgery
Disease control OngoingThis study tests whether a cancer-killing virus (T-VEC) combined with radiation can shrink soft tissue sarcomas before surgery. About 40 adults with newly diagnosed, removable sarcomas will receive the virus injected into the tumor plus radiation. The main goals are to see how ma…
Phase 2 • Sponsor: National Cancer Institute (NCI) • Aim: Disease control
Last updated Sep 19, 2026 00:00 UTC
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Promising combo tackles rare sarcoma in early trial
Disease control OngoingThis study tests a combination of two drugs, lurbinectedin and doxorubicin, in people with advanced soft-tissue sarcoma or leiomyosarcoma that cannot be cured with standard treatments. The first part finds a safe dose, and the second part compares the combination to lurbinectedin…
Phase 1/2 • Sponsor: Massachusetts General Hospital • Aim: Disease control
Last updated Aug 29, 2026 00:00 UTC
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New cell therapy targets Epstein-Barr virus in immune-compromised patients
Disease control OngoingThis study tests an experimental cell therapy called tabelecleucel in 190 people with diseases caused by the Epstein-Barr virus (EBV), including certain lymphomas and post-transplant complications. The treatment uses specially prepared immune cells to fight the virus. The main go…
Phase 2 • Sponsor: Pierre Fabre Medicament • Aim: Disease control
Last updated Aug 02, 2026 00:00 UTC
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New drug duo takes on rare sarcomas
Disease control OngoingThis phase 2 trial tests whether combining NKTR-214 and nivolumab can shrink or control advanced sarcoma that has spread. About 88 people aged 12 and older with certain sarcoma types will receive both drugs every three weeks. The main goal is to see how many patients have their t…
Phase 2 • Sponsor: Memorial Sloan Kettering Cancer Center • Aim: Disease control
Last updated Jul 24, 2026 00:00 UTC
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New drug duo takes on rare cancer
Disease control OngoingThis phase 2 study is testing whether combining two drugs, rucaparib and nivolumab, can treat advanced or metastatic leiomyosarcoma (LMS), a rare soft-tissue cancer. The 20 participants take rucaparib pills twice daily and get nivolumab infusions every four weeks. The main goal i…
Phase 2 • Sponsor: Memorial Sloan Kettering Cancer Center • Aim: Disease control
Last updated Jul 19, 2026 00:00 UTC
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New hope for leiomyosarcoma: drug combo trial aims to slow tumor growth
Disease control OngoingThis phase 3 trial tests whether adding lurbinectedin to standard doxorubicin chemotherapy helps people with metastatic leiomyosarcoma live longer without their cancer growing. About 469 adults who have not had prior treatment for advanced disease are being studied. The main goal…
Phase 3 • Sponsor: PharmaMar • Aim: Disease control
Last updated Jun 27, 2026 14:00 UTC
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Drug combo shows promise in slowing rare sarcomas
Disease control OngoingThis phase 2 trial tests two oral drugs, ribociclib and everolimus, in people with advanced dedifferentiated liposarcoma or leiomyosarcoma who have had at least one prior treatment. The goal is to see if the combination can stop or slow tumor growth. About 48 participants will ta…
Phase 2 • Sponsor: Fox Chase Cancer Center • Aim: Disease control
Last updated Jun 27, 2026 12:36 UTC
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New drug cocktail shows promise for rare sarcomas
Disease control OngoingThis phase II trial tests whether combining cabozantinib (a targeted therapy) with temozolomide (a chemotherapy drug) can slow tumor growth in people with advanced leiomyosarcoma or other soft tissue sarcomas that cannot be surgically removed or have spread. About 96 participants…
Phase 2 • Sponsor: City of Hope Medical Center • Aim: Disease control
Last updated Jun 27, 2026 12:28 UTC
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New drug combo shows promise for Hard-to-Treat sarcomas
Disease control OngoingThis study tests whether combining two drugs, lenvatinib and pembrolizumab, can safely shrink or control advanced soft tissue sarcomas that have spread or can't be removed by surgery. About 52 adults with specific sarcoma types will receive the combination. The goal is to measure…
Phase 2 • Sponsor: Memorial Sloan Kettering Cancer Center • Aim: Disease control
Last updated Jun 27, 2026 12:23 UTC
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New drug cocktail shows promise against rare sarcomas
Disease control OngoingThis study tests whether adding the targeted drug cabozantinib to immunotherapy (ipilimumab and nivolumab) works better than immunotherapy alone for people with advanced soft tissue sarcoma that has spread. About 66 adults with specific sarcoma types will take part. The goal is t…
Phase 2 • Sponsor: National Cancer Institute LAO • Aim: Disease control
Last updated Jun 27, 2026 12:23 UTC
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Donor immune cells show promise against Virus-Linked cancers
Disease control OngoingThis study tests a new treatment for cancers linked to the Epstein-Barr virus (EBV), such as Hodgkin lymphoma and nasopharyngeal carcinoma. The treatment uses immune cells from healthy donors that are specially trained to attack EBV-infected cells. These cells are stored in a ban…
Phase 1 • Sponsor: Baylor College of Medicine • Aim: Disease control
Last updated Jun 27, 2026 12:00 UTC
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Experimental combo aims to boost immune attack on sarcoma before surgery
Disease control OngoingThis early-phase study tests the safety of combining two immunotherapy drugs—nivolumab and BO-112—given before surgery for soft tissue sarcoma that can be removed. About 14 adults with certain sarcoma types will receive these drugs to see if they help the immune system fight the …
Phase 1 • Sponsor: Jonsson Comprehensive Cancer Center • Aim: Disease control
Last updated Jun 27, 2026 11:00 UTC
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Tumor avatars could personalize sarcoma therapy
Disease control By invitation onlyThis study aims to see if growing a patient's tumor cells in the lab (called organoids) can help doctors choose the most effective first-line chemotherapy for advanced leiomyosarcoma, a rare cancer of smooth muscle. About 50 adults aged 18-75 who have not yet received systemic tr…
Sponsor: Union Hospital, Tongji Medical College, Huazhong University of Science and Technology • Aim: Disease control
Last updated Jun 27, 2026 09:04 UTC
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New study explores drug cocktails for Hard-to-Treat cancers
Knowledge-focused OngoingThis study tests two different drug combinations in people with advanced colorectal, pancreatic, or leiomyosarcoma cancers that have not responded to standard treatments. Participants receive either olaparib plus durvalumab or cediranib plus durvalumab. The main goal is to unders…
Phase 2 • Sponsor: University Health Network, Toronto • Aim: Knowledge-focused
Last updated Aug 12, 2026 00:00 UTC
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New imaging method could spot hidden cancers
Knowledge-focused OngoingThis pilot study is testing a radioactive antibody called 124I-Humanized 3F8 to see how it travels through the body and attaches to tumors in people with melanoma, neuroblastoma, or sarcoma. Seven participants will receive the antibody and then have PET/CT scans at several time p…
Sponsor: Memorial Sloan Kettering Cancer Center • Aim: Knowledge-focused
Last updated Jun 27, 2026 08:01 UTC