A Phase II Clinical Trial Evaluating the Combination of Olaparib and Temozolomide for the Treatment of Advanced Uterine Leiomyosarcoma

NCT ID: NCT03880019

Last Updated: 2025-12-03

Basic Information

• Recruitment Status: ACTIVE_NOT_RECRUITING
• Clinical Phase: PHASE2
• Total Enrollment: 23 participants
• Study Classification: INTERVENTIONAL
• Study Start Date: 2019-08-19
• Study Completion Date: 2026-11-12

Brief Summary

This phase II trial studies olaparib and temozolomide in treating patients with uterine leiomyosarcoma (LMS) that may have spread from where it first started to nearby tissue, lymph nodes, or distant parts of the body (advanced), that has spread from where it first started to other places in the body (metastatic) or cannot be removed by surgery (unresectable). PARPs are proteins that help repair DNA mutations. PARP inhibitors, such as olaparib, can keep PARP from working, so tumor cells can't repair themselves, and they may stop growing. Chemotherapy drugs, such as temozolomide, work in different ways to stop the growth of tumor cells, either by killing the cells, by stopping them from dividing, or by stopping them from spreading. Giving olaparib and temozolomide may work better than giving either drug alone in treating patients with LMS.

Detailed Description

PRIMARY OBJECTIVE:

I. To evaluate whether combination treatment with temozolomide (TMZ) + olaparib shows preliminary evidence of clinical activity among patients with advanced uterine leiomyosarcoma (LMS) as measured by the confirmed objective response rate (ORR).

SECONDARY OBJECTIVES:

I. To evaluate the toxicity profile associated with the combination treatment. II. To evaluate the progression free survival (PFS) associated with the combination treatment.

III. To evaluate what proportion of uterine LMS tumors exhibit homologous recombination (HR) deficiency as measured by (1) genomic alterations in HR components at baseline and (2) deoxyribonucleic acid (DNA) repair protein RAD51 homolog (RAD51) foci formation at baseline and while on study treatment.

IV. To evaluate the feasibility of these assays in human tissue, and to preliminarily evaluate for any association between presence of HR deficiency as measured by each assay and increased clinical benefit from the study treatment.

EXPLORATORY OBJECTIVES:

I. To evaluate what proportion of uterine LMS tumors exhibit HR deficiency as measured by Schlafen family member number 11(SLFN11) protein expression at baseline.

II. To evaluate the feasibility of this assay in human tissue, and to preliminarily evaluate for any association between presence of HR deficiency as measured by this assay and increased clinical benefit from the study treatment.

III. To evaluate MGMT protein expression in uterine LMS tumors, and to preliminarily evaluate for any association between MGMT expression and increased clinical benefit from the study treatment.

IV. To perform an optional third tissue biopsy in patients who initially benefit from study treatment but later show early evidence of disease progression to evaluate for changes in the status of the RAD51 foci, MGMT, and SLFN11 assays at that time.

OUTLINE:

Patients receive olaparib orally (PO) twice per day (BID) and temozolomide PO once daily (QD) on days 1-7 of each cycle. Cycles repeat every 21 days in the absence of disease progression or unacceptable toxicity. Patients undergo computed tomography (CT) or magnetic resonance imaging (MRI) throughout the trial and undergo tumor biopsy at screening and on study.

After completion of study treatment, patients are followed up every 3 months for 2 years, and then every 6 months until death or withdrawal of consent.

Conditions

Stage III Uterine Corpus Leiomyosarcoma AJCC v8; Stage IV Uterine Corpus Leiomyosarcoma AJCC v8; Uterine Corpus Leiomyosarcoma

Study Design

• Allocation Method: NA
• Intervention Model: SINGLE_GROUP
• Primary Study Purpose: TREATMENT
• Blinding Strategy: NONE

Study Groups

Treatment (olaparib, temozolomide)

Patients receive olaparib PO BID and temozolomide PO QD on days 1-7 of each cycle. Cycles repeat every 21 days in the absence of disease progression or unacceptable toxicity. Patients undergo CT or MRI throughout the trial and undergo tumor biopsy at screening and on study.

Group Type: EXPERIMENTAL

Computed Tomography

Intervention Type: PROCEDURE

Undergo CT

Core Biopsy

Intervention Type: PROCEDURE

Undergo tumor biopsy

Magnetic Resonance Imaging

Intervention Type: PROCEDURE

Undergo MRI

Olaparib

Intervention Type: DRUG

Given PO

Temozolomide

Intervention Type: DRUG

Given PO

Interventions

Computed Tomography

Undergo CT

Intervention Type: PROCEDURE

Core Biopsy

Undergo tumor biopsy

Intervention Type: PROCEDURE

Magnetic Resonance Imaging

Undergo MRI

Intervention Type: PROCEDURE

Olaparib

Given PO

Intervention Type: DRUG

Temozolomide

Given PO

Intervention Type: DRUG

Other Intervention Names

CAT; CAT Scan; Computed Axial Tomography; Computerized Axial Tomography; Computerized axial tomography (procedure); Computerized Tomography; Computerized Tomography (CT) scan; CT; CT Scan; Diagnostic CAT Scan; Diagnostic CAT Scan Service Type; tomography; BIOPSY, CORE; CNB; Core Needle; Core Needle Biopsy; Needle Biopsy; Magnetic Resonance; Magnetic Resonance Imaging (MRI); Magnetic resonance imaging (procedure); Magnetic Resonance Imaging Scan; Medical Imaging, Magnetic Resonance / Nuclear Magnetic Resonance; MR; MR Imaging; MRI; MRI Scan; MRIs; NMR Imaging; NMRI; Nuclear Magnetic Resonance Imaging; sMRI; Structural MRI; AZD 2281; AZD-2281; AZD2281; KU 0059436; KU-0059436; KU0059436; Lynparza; Olanib; Olaparix; PARP Inhibitor AZD2281; CCRG-81045; Gliotem; Imidazo[5,1-d]-1,2,3,5-tetrazine-8-carboxamide, 3, 4-dihydro-3-methyl-4-oxo-; M & B 39831; M and B 39831; Methazolastone; RP-46161; SCH 52365; Temcad; Temizole; Temodal; Temodar; Temomedac; TMZ

Eligibility Criteria

Inclusion Criteria

• Patients must have histologically documented LMS of uterine origin. Pathology review and confirmation of diagnosis will occur at the site enrolling the patient on this study.
• Patients must have locally advanced and unresectable or metastatic disease.
• Patients must have disease which is measurable at study entry according to Response Evaluation Criteria in Solid Tumors (RECIST) version 1.1 criteria. Additionally, patients must have a site of disease deemed accessible for biopsy at no or minimal risk to the patient (including through the use of image-guidance). If there are questions regarding the feasibility of biopsy, the case should be reviewed with interventional radiology or the appropriate department at the study site prior to registration.
• Patients must have had prior progression on, or intolerance to, at least one line of systemic therapy for advanced LMS. Adjuvant therapy administered after curative resection will not qualify as prior treatment. There is no upper limit on the number of prior therapies received.
• Patients must be >= 18 years of age. Uterine LMS affects older adults and is rarely encountered in children and adolescents.
• Patients must demonstrate an Eastern Cooperative Oncology Group (ECOG) performance status (PS) of =< 2 (Karnofsky >= 50%).
• Absolute neutrophil count >= 1,500/mcL (measured within 14 days prior to administration of study treatment).
• Hemoglobin >= 9 g/dL (without transfusion of packed red blood cells within the past 28 days) (measured within 14 days prior to administration of study treatment).
• Platelets >= 100,000/mcL (measured within 14 days prior to administration of study treatment).
• Total bilirubin =< 1.5 x institutional upper limit of normal (ULN) (measured within 14 days prior to administration of study treatment).
• Aspartate aminotransferase (AST) (serum glutamic-oxaloacetic transaminase [SGOT])/alanine aminotransferase (ALT) (serum glutamate pyruvate transaminase [SGPT]) =< 2.5 x institutional ULN (measured within 14 days prior to administration of study treatment).
• Glomerular filtration rate (GFR) >= 51 mL/min, based on a 24-hour urine test for creatinine clearance or estimated using the Cockcroft-Gault equation (measured within 14 days prior to administration of study treatment).
• If patients have evidence of chronic hepatitis B virus (HBV) infection, HBV viral load must be undetectable on suppressive therapy if indicated. Patients with a past or resolved HBV infection (defined as the presence of hepatitis B core antibody and absence of hepatitis B surface antigen [HBsAg]) are eligible.
• If patients have a history of hepatitis C virus (HCV) infection, they must be treated with undetectable HCV viral load (polymerase chain reaction is negative for HCV ribonucleic acid [RNA]).
• Patients must be postmenopausal or have evidence of non-childbearing status, OR, for women of childbearing potential, must have a negative urine or serum pregnancy test within 28 days of study treatment and confirmed again on day 1 prior to study treatment.

• Postmenopausal is defined as:

• Amenorrheic for >= 1 year following cessation of exogenous hormonal treatments
• Luteinizing hormone (LH) and follicle stimulating hormone (FSH) levels in the postmenopausal range for women under 50
• Radiation-induced oophorectomy with last menses > 1 year ago
• Chemotherapy-induced menopause with > 1 year interval since last menses
• Surgical sterilization (bilateral oophorectomy or hysterectomy).
• Patients and their partners, if sexually active and of childbearing potential, must agree to the use of two highly effective forms of contraception in combination throughout the period of taking study treatment and for 3 months after the last dose of study drug(s) to prevent pregnancy in the study patient or partner.
• Patients must be able to swallow orally administered medication.
• Patients must have a life expectancy >= 16 weeks.
• Patients must be able to understand and be willing to sign a written informed consent document. Patients with impaired decision-making capacity (IDMC) will be eligible if they have a close caregiver or legally authorized representative (LAR) available to assist them.
• Patients must be willing and able to comply with the protocol for the duration of the study, including undergoing treatment and attending scheduled visits and examinations.
• Patients with human immunodeficiency virus (HIV) infection may be enrolled on this study provided: (a) they are on a stable regimen of highly active anti-retroviral therapy (HAART) with no medications otherwise prohibited by this protocol (e.g. drug-drug interactions) and (b) require no concurrent antibiotics or antifungals for the prevention of opportunistic infections and (c) have a CD4 count above 250 cell/mcL and an undetectable viral load on standard polymerase chain reaction (PCR)-based tests within 1 month of initiation of study treatment. Other patients with clinically significant immunosuppression, e.g. organ transplant patients, are not eligible. If clarification is needed, this may be discussed with the medical monitor.
• Patients must be able to have temozolomide provided as a standard of care medication.

Exclusion Criteria

• Patients must not have had any previous treatment with any poly(adenosine diphosphate[ADP]-ribose) polymerase (PARP) inhibitors, including olaparib, or prior treatment with dacarbazine and/or temozolomide.
• Patients must have recovered from adverse events due to prior anti-cancer therapy (i.e., may not have residual toxicities > grade 1 or above baseline), excluding alopecia. Patients who have endocrinopathies associated with prior immunotherapy treatment but which are controlled with replacement therapy are eligible.
• Prior to initiating study treatment, at least 28 days must have elapsed from the last dose of systemic anti-cancer treatment (cytotoxic, biologic or immunotherapeutic) or radiation therapy (except for palliative radiation, in which case a 14-day washout applies).
• Patients must not have had major surgery within 2 weeks of starting study treatment and must have recovered from any effects of any major surgery that occurred > 2 weeks before starting study treatment.
• Patients must not be receiving any other investigational agent.
• Patients must not have been diagnosed with another malignancy unless curatively treated with no evidence of disease for >= 5 years except: adequately treated non-melanoma skin cancer, curatively treated in situ cancer of the cervix, ductal carcinoma in situ (DCIS), or any other malignant condition considered indolent and unlikely to require active therapy.
• Patients must not have myelodysplastic syndrome (MDS)/acute myeloid leukemia (AML) or bone marrow biopsy findings consistent with MDS and/or AML.
• Patients must not have active central nervous system (CNS) or leptomeningeal disease at the time of enrollment. Patients with a history of such disease previously treated with curative intent (such as with surgery or radiation) that have not progressed on subsequent imaging, have been clinically asymptomatic, and have not received systemic corticosteroids for at least 28 days, are eligible.
• Patients must not have a history of allergic reactions attributed to compounds of similar chemical or biologic composition to olaparib or TMZ or any of the excipients of any study product.
• Patients must refrain from concomitant use of known strong CYP3A inhibitors (e.g., itraconazole, telithromycin, clarithromycin, protease inhibitors boosted with ritonavir or cobicistat, indinavir, saquinavir, nelfinavir, boceprevir, telaprevir) or moderate CYP3A inhibitors (e.g., ciprofloxacin, erythromycin, diltiazem, fluconazole, verapamil). The required washout period for strong or moderate CYP3A inhibitors prior to starting olaparib is 2 weeks. Because the lists of these agents are constantly changing, it is important to regularly consult a frequently-updated medical reference. As part of the enrollment/informed consent procedures, the patient will be counseled on the risk of interactions with other agents, and what to do if new medications need to be prescribed or if the patient is considering a new over-the-counter medicine or herbal product.
• Patients must refrain from concomitant use of known strong CYP3A inducers (e.g., phenobarbital, enzalutamide, phenytoin, rifampicin, rifabutin, rifapentine, carbamazepine, nevirapine and St John's wort) or moderate CYP3A inducers (e.g., bosentan, efavirenz, modafinil). The required washout period for strong or moderate CYP3A inducers prior to starting olaparib is 5 weeks for enzalutamide or phenobarbital and 3 weeks for other agents.
• Patients must not have an uncontrolled intercurrent illness including, but not limited to, ongoing or active infection, uncontrolled ventricular arrhythmia, recent (within 3 months) myocardial infarction, uncontrolled major seizure disorder, unstable spinal cord compression, superior vena cava syndrome, extensive interstitial bilateral lung disease on high resolution computed tomography (HRCT) scan, or psychiatric illness that would limit compliance with study requirements.
• Pregnant women are excluded from this study because olaparib is a PARP inhibitor with the potential for teratogenic or abortifacient effects. Because there is an unknown but potential risk for adverse events in nursing infants secondary to treatment of the mother with olaparib, breastfeeding should be discontinued if the mother is treated with olaparib. These potential risks may also apply to other agents used in this study.
• Patients must not have gastrointestinal disorders likely to interfere with absorption of the study medication.
• Patients must not have had involvement in the planning and/or conduct of the study.

• Minimum Eligible Age: 18 Years
• Eligible Sex: FEMALE
• Accepts Healthy Volunteers: No

Sponsors

National Cancer Institute (NCI)

NIH

Sponsor Role: lead

Responsible Party

Responsibility Role: SPONSOR

Principal Investigators

Mia C Weiss

Role: PRINCIPAL_INVESTIGATOR

Yale University Cancer Center LAO

Locations

Mayo Clinic Hospital in Arizona

Phoenix, Arizona, United States

Stanford Cancer Institute Palo Alto

Palo Alto, California, United States

UCHealth University of Colorado Hospital

Aurora, Colorado, United States

UF Health Cancer Institute - Gainesville

Gainesville, Florida, United States

Mayo Clinic in Florida

Jacksonville, Florida, United States

Massachusetts General Hospital Cancer Center

Boston, Massachusetts, United States

Dana-Farber Cancer Institute

Boston, Massachusetts, United States

Wayne State University/Karmanos Cancer Institute

Detroit, Michigan, United States

Weisberg Cancer Treatment Center

Farmington Hills, Michigan, United States

Mayo Clinic in Rochester

Rochester, Minnesota, United States

Washington University School of Medicine

St Louis, Missouri, United States

NYP/Columbia University Medical Center/Herbert Irving Comprehensive Cancer Center

New York, New York, United States

Ohio State University Comprehensive Cancer Center

Columbus, Ohio, United States

University of Pittsburgh Cancer Institute (UPCI)

Pittsburgh, Pennsylvania, United States

VCU Massey Comprehensive Cancer Center

Richmond, Virginia, United States

Countries

United States

References

Ingham M, Allred JB, Chen L, Das B, Kochupurakkal B, Gano K, George S, Attia S, Burgess MA, Seetharam M, Boikos SA, Bui N, Chen JL, Close JL, Cote GM, Thaker PH, Ivy SP, Bose S, D'Andrea A, Marino-Enriquez A, Shapiro GI, Schwartz GK. Phase II Study of Olaparib and Temozolomide for Advanced Uterine Leiomyosarcoma (NCI Protocol 10250). J Clin Oncol. 2023 Sep 1;41(25):4154-4163. doi: 10.1200/JCO.23.00402. Epub 2023 Jul 19.

Reference Type: DERIVED

PMID: 37467452 (View on PubMed)

Vyse S, Thway K, Huang PH, Jones RL. Next-generation sequencing for the management of sarcomas with no known driver mutations. Curr Opin Oncol. 2021 Jul 1;33(4):315-322. doi: 10.1097/CCO.0000000000000741.

Reference Type: DERIVED

PMID: 33927108 (View on PubMed)

Provided Documents

Document Type: Study Protocol and Statistical Analysis Plan

View Document

Document Type: Informed Consent Form

View Document

Other Identifiers

NCI-2019-01500

Identifier Type: REGISTRY

Identifier Source: secondary_id

#AAAS4040

Identifier Type: -

Identifier Source: secondary_id

WUSM HRPO# 201910106

Identifier Type: -

Identifier Source: secondary_id

10250

Identifier Type: OTHER

Identifier Source: secondary_id

10250

Identifier Type: OTHER

Identifier Source: secondary_id

UM1CA186686

Identifier Type: NIH

Identifier Source: secondary_id

View Link

NCI-2019-01500

Identifier Type: -

Identifier Source: org_study_id