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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Could chemo before surgery beat sarcoma? new trial aims to find out
Disease control Recruiting nowThis study is for people with a rare, high-risk cancer called retroperitoneal sarcoma. It compares two approaches: getting chemotherapy before surgery versus surgery alone. The goal is to see if the chemo-first approach helps prevent the cancer from coming back. About 250 partici…
Phase 3 • Sponsor: European Organisation for Research and Treatment of Cancer - EORTC • Aim: Disease control
Last updated Sep 12, 2026 00:00 UTC
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Experimental drug combo aims to shrink Hard-to-Treat sarcomas
Disease control Recruiting nowThis early-stage trial tests a combination of two drugs—peposertib and a low-dose form of the chemotherapy doxorubicin—in people with advanced sarcomas that have spread or can't be removed by surgery. The goal is to find the safest dose and see if the combo can shrink tumors or s…
Phase 1 • Sponsor: National Cancer Institute (NCI) • Aim: Disease control
Last updated Sep 06, 2026 00:00 UTC
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New hope for rare cancer: ivonescimab trial targets leiomyosarcoma
Disease control Recruiting nowThis study tests whether the drug Ivonescimab can safely shrink or control advanced leiomyosarcoma, a rare soft-tissue cancer. About 20 adults who have already tried 1-3 prior treatments will receive the drug. The goal is to see if it slows tumor growth with few side effects.
Phase 2 • Sponsor: Memorial Sloan Kettering Cancer Center • Aim: Disease control
Last updated Aug 29, 2026 00:00 UTC
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New drug combo targets Hard-to-Treat cancers in early trial
Disease control Recruiting nowThis early-phase trial tests a new drug called STC-15, either alone or combined with an immunotherapy drug (toripalimab), in people with advanced solid tumors or certain sarcomas. The study aims to check safety and whether the drugs shrink tumors. About 107 participants will be e…
Phase 1/2 • Sponsor: STORM Therapeutics LTD • Aim: Disease control
Last updated Aug 27, 2026 00:00 UTC
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Can a Tumor-Injected drug combo outlast standard care in advanced sarcoma?
Disease control Recruiting nowThis phase 3 trial is testing whether an investigational drug called INT230-6, which combines three anti-cancer agents and is injected directly into tumors, can help people with advanced soft tissue sarcoma live longer than those receiving standard care. The study enrolls adults …
Phase 3 • Sponsor: Intensity Therapeutics, Inc. • Aim: Disease control
Last updated Aug 13, 2026 00:00 UTC
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New hope for rare childhood cancer: drug cocktail aims to shrink tumors and prevent return
Disease control Recruiting nowThis study is for children and young adults (up to age 30) with a rare type of soft tissue cancer called non-rhabdomyosarcoma. It tests whether adding the drugs pazopanib and selinexor to standard chemotherapy can improve outcomes. Participants receive treatment tailored to their…
Phase 1/2 • Sponsor: St. Jude Children's Research Hospital • Aim: Disease control
Last updated Aug 05, 2026 00:00 UTC
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New drug takes aim at Hard-to-Treat sarcoma
Disease control Recruiting nowThis early-stage trial is testing a new drug called REC-617 in 15 people with a rare type of sarcoma (leiomyosarcoma) that has spread or cannot be removed and has not responded to prior treatments. The drug targets a protein (CDK7) that helps cancer cells grow. The main goal is t…
Phase 1 • Sponsor: M.D. Anderson Cancer Center • Aim: Disease control
Last updated Aug 02, 2026 00:00 UTC
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New cancer drug AOH1996 enters first human tests
Disease control Recruiting nowThis early-stage trial is testing a new drug called AOH1996 in 92 adults with solid tumors (like lung, ovarian, or pancreatic cancer) that have stopped responding to standard treatments. The drug works by blocking a protein that cancer cells need to grow. The main goals are to fi…
Phase 1 • Sponsor: City of Hope Medical Center • Aim: Disease control
Last updated Jul 30, 2026 00:00 UTC
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New hope for sarcoma patients: drug combo aims to shrink tumors
Disease control Recruiting nowThis study tests a new two-drug treatment for people with advanced soft tissue sarcomas (cancers of the muscles, fat, or other connective tissues). The drugs, abemaciclib and gemcitabine, work together to stop cancer cells from growing. The trial will compare this new combo to th…
Phase 1/2 • Sponsor: National Cancer Institute (NCI) • Aim: Disease control
Last updated Jun 27, 2026 14:00 UTC
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New drug trial aims to slow rare Cancer's spread
Disease control Recruiting nowThis study tests a drug called zanzalintinib (XL092) in 29 people with advanced leiomyosarcoma that has spread or cannot be removed by surgery. The drug works by blocking signals that help cancer cells grow. The goal is to see if it can slow the cancer's progression longer than c…
Phase 2 • Sponsor: Northwestern University • Aim: Disease control
Last updated Jun 27, 2026 14:00 UTC
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New drug combo aims to outsmart Hard-to-Treat cancers
Disease control Recruiting nowThis early-phase study tests an experimental drug called OKN4395, taken as a pill, alone or together with the immunotherapy pembrolizumab. The goal is to find a safe dose and see if the combination can shrink tumors in people with advanced solid cancers like lung, colorectal, sto…
Phase 1 • Sponsor: Epkin • Aim: Disease control
Last updated Jun 27, 2026 13:07 UTC
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New combo therapy hopes to slow sarcoma growth
Disease control Recruiting nowThis early-phase trial tests whether adding zanzalintinib to the chemotherapy drug eribulin can help control advanced liposarcoma and leiomyosarcoma better than eribulin alone. About 18 adults whose cancer has worsened after prior treatments will receive the combination. The main…
Phase 1 • Sponsor: Washington University School of Medicine • Aim: Disease control
Last updated Jun 27, 2026 13:00 UTC
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New combo attack on sarcoma aims to delay return of cancer
Disease control Recruiting nowThis study is for adults with high-risk soft tissue sarcoma that can be removed by surgery. It tests whether adding an immunotherapy drug (atezolizumab) to standard chemotherapy, radiation, and surgery can delay the cancer from coming back. About 50 participants will receive the …
Phase 2 • Sponsor: M.D. Anderson Cancer Center • Aim: Disease control
Last updated Jun 27, 2026 12:37 UTC
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New hope for rare cancers: immunotherapy drug targets tumors regardless of origin
Disease control Recruiting nowThis study tests the drug nivolumab in people with advanced rare cancers that have a specific marker (PD-L1). The goal is to see if the drug can shrink or control the tumors when other treatments have stopped working. Up to 28 adults will receive treatment for up to 12 months, an…
Phase 2 • Sponsor: Instituto do Cancer do Estado de São Paulo • Aim: Disease control
Last updated Jun 27, 2026 12:08 UTC
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New hope for rare cancer: trabectedin vs gemcitabine in leiomyosarcoma trial
Disease control Recruiting nowThis phase II trial compares the chemotherapy drugs trabectedin and gemcitabine in 100 people with advanced leiomyosarcoma that has worsened after initial treatment. The study aims to see which drug better delays cancer progression. It also includes an observational group for tho…
Phase 2 • Sponsor: Italian Sarcoma Group • Aim: Disease control
Last updated Jun 27, 2026 12:00 UTC
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New combo drug trial targets Hard-to-Treat sarcomas
Disease control Recruiting nowThis early-phase trial is testing a combination of two drugs, gemcitabine and nab-sirolimus, in people with advanced leiomyosarcomas or soft-tissue sarcomas that have lost function in the TSC1 or TSC2 genes. The main goal is to find a safe and tolerable dose. The study plans to e…
Phase 1 • Sponsor: M.D. Anderson Cancer Center • Aim: Disease control
Last updated Jun 27, 2026 09:07 UTC
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New hope for rare sarcoma patients: AL3818 drug trial underway
Disease control Recruiting nowThis phase 3 trial tests the drug AL3818 (anlotinib) in people with advanced alveolar soft part sarcoma, leiomyosarcoma, or synovial sarcoma. Currently, only patients with alveolar soft part sarcoma are being enrolled. Participants receive AL3818 pills or a standard chemotherapy …
Phase 3 • Sponsor: Advenchen Laboratories, LLC • Aim: Disease control
Last updated Jun 27, 2026 09:07 UTC
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Can a cancer pill keep bone sarcomas at bay?
Disease control Recruiting nowThis study tests whether the drug regorafenib can help prevent bone sarcomas from coming back after initial treatment. About 168 people aged 12 and older with various bone sarcomas will be randomly assigned to take regorafenib for up to 12 months or to receive standard monitoring…
Sponsor: Centre Leon Berard • Aim: Disease control
Last updated Jun 27, 2026 09:06 UTC
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New hope for bone sarcoma: regorafenib maintenance trial launches
Disease control Recruiting nowThis phase 2 trial tests whether the drug regorafenib can help keep high-grade bone sarcomas from growing in patients who still have some disease after standard treatment. About 36 people aged 12 and older will take regorafenib daily for up to 12 months. The main goal is to see h…
Phase 2 • Sponsor: Centre Leon Berard • Aim: Disease control
Last updated Jun 27, 2026 09:06 UTC
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Weekly chemo could be easier on elderly sarcoma patients
Disease control Recruiting nowThis study tests whether giving the chemotherapy drug doxorubicin weekly at a lower dose is effective and easier to tolerate for people aged 65 to 100 with advanced leiomyosarcoma, a type of soft tissue cancer. The standard dose often causes harsh side effects, especially in olde…
Phase 2 • Sponsor: University of Colorado, Denver • Aim: Disease control
Last updated Jun 27, 2026 09:02 UTC
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Proton beam boost: new hope for inoperable sarcomas?
Disease control Recruiting nowThis study tests whether a higher dose of proton radiation can better control inoperable soft tissue sarcomas without increasing side effects. Forty adults with these rare tumors will receive targeted radiation over 4 weeks. Researchers will also look at blood and imaging markers…
Phase 2 • Sponsor: Oslo University Hospital • Aim: Disease control
Last updated Jun 27, 2026 09:00 UTC
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New 3-Week radiation plan aims to cut side effects for sarcoma patients
Disease control Recruiting nowThis study tests whether a personalized 3-week course of proton radiation before surgery for soft tissue sarcoma can reduce long-term side effects compared to standard X-ray radiation. About 110 adults in Norway will receive either proton or X-ray therapy, chosen individually for…
Phase 2 • Sponsor: Oslo University Hospital • Aim: Disease control
Last updated Jun 27, 2026 09:00 UTC
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New hope for sarcoma patients: immunotherapy plus chemo shows promise
Disease control Recruiting nowThis study tests a new combination of drugs (tislelizumab, liposomal doxorubicin, and ifosfamide) as a first treatment for people with advanced soft tissue sarcoma that cannot be removed by surgery or has spread. The goal is to see if this combo shrinks tumors and is safe. About …
Phase 2 • Sponsor: Fudan University • Aim: Disease control
Last updated Jun 27, 2026 08:09 UTC
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New drug shows promise for rare bone and soft tissue cancers
Disease control Recruiting nowThis study tests a new drug called QL1706 in 45 adults with advanced bone or soft tissue sarcoma that cannot be removed by surgery or has spread. Participants receive the drug every 3 weeks. The main goal is to see if the cancer stays stable for at least 12 weeks. Researchers wil…
Phase 2 • Sponsor: Sun Yat-sen University • Aim: Disease control
Last updated Jun 27, 2026 07:58 UTC
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New combo therapy targets hard-to-treat sarcoma
Disease control Recruiting nowThis study tests whether combining two drugs—ATRA and cemiplimab—can shrink or control advanced leiomyosarcoma that has stopped responding to standard treatments. About 16 adults with metastatic or locally advanced, inoperable leiomyosarcoma will receive ATRA pills for 3 days bef…
Phase 2 • Sponsor: Gabriel Tinoco • Aim: Disease control
Last updated Jun 27, 2026 07:52 UTC
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Dietary change explored as cancer support strategy
Knowledge-focused Recruiting nowThis early-stage study tests whether people with advanced solid tumors can safely follow a diet low in methionine, an amino acid found in many proteins. Researchers will measure how well participants stick to the diet, check for side effects, and track changes in blood methionine…
Early phase 1 • Sponsor: University of California, Irvine • Aim: Knowledge-focused
Last updated Aug 02, 2026 00:00 UTC
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Can a simple blood test predict sarcoma recurrence?
Knowledge-focused Recruiting nowThis study looks at whether a blood test for tumor DNA (ctDNA) and detailed scans can help predict how well chemotherapy works in people with a rare soft tissue cancer called leiomyosarcoma. About 40 participants will give blood samples and have scans before, during, and after tr…
Sponsor: University of Michigan Rogel Cancer Center • Aim: Knowledge-focused
Last updated Jul 04, 2026 00:00 UTC
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Blood test may spot hidden sarcoma signals
Knowledge-focused Recruiting nowThis study investigates whether fragments of tumor DNA circulating in the blood can be used to detect and monitor soft tissue sarcoma. Researchers will collect blood and tumor tissue samples from 40 adults with high-risk sarcomas to see if this DNA can serve as a biomarker for ca…
Sponsor: University Health Network, Toronto • Aim: Knowledge-focused
Last updated Jun 27, 2026 14:02 UTC
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Can a simple blood test predict chemo success in rare cancer?
Knowledge-focused Recruiting nowThis study is collecting blood and tumor samples from 200 people with metastatic leiomyosarcoma who are starting chemotherapy. Researchers will analyze circulating tumor DNA (ctDNA) and genetic changes to see if they can predict how well the chemotherapy works. Participants also …
Sponsor: University of Michigan Rogel Cancer Center • Aim: Knowledge-focused
Last updated Jun 27, 2026 14:02 UTC
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800-Patient study aims to tailor sarcoma treatment
Knowledge-focused Recruiting nowThis study is collecting tissue samples and medical data from 800 high-risk sarcoma patients to develop personalized treatment approaches. Researchers will analyze genetic and protein profiles to better predict which patients benefit from chemotherapy before surgery. The goal is …
Sponsor: Royal Marsden NHS Foundation Trust • Aim: Knowledge-focused
Last updated Jun 27, 2026 09:08 UTC