NCT04052555Active, not recruitingPhase 1

A Phase 1b Study of Berzosertib in Combination With Radiation Therapy to Overcome Therapeutic Resistance in Chemotherapy Resistant Triple Negative and Estrogen and/or Progesterone Receptor Positive, HER2 Negative Breast Cancer

National Cancer Institute (NCI)15 sites in 1 country42 target enrollmentStarted: September 24, 2020Last updated: July 31, 2026

Conditions

Interventions

Drugs

Trial Snapshot

Phase: Phase 1
Status: Active, not recruiting
Sponsor: National Cancer Institute (NCI)
Enrollment: 42
Locations: 15
Primary Endpoint: Recommended phase II dose of berzosertib

Study Overview Study Design Eligibility Criteria Arms & Interventions Outcomes Investigators Sites Records & Identifiers Similar Trials

Study Overview

Brief Summary

This phase Ib trial studies the best dose of berzosertib when given together with the usual treatment (radiation therapy) in treating patients with triple negative or estrogen receptor and/or progesterone receptor positive, HER-2 negative breast cancer. Berzosertib may stop the growth of tumor cells by blocking some of the enzymes needed for cell growth. Radiation therapy uses high energy rays to kill tumor cells and shrink tumors. Giving M6620 and radiation therapy may kill tumor cells more effectively than radiation alone or shrink or stabilize breast cancer for longer than radiation therapy alone.

Detailed Description

PRIMARY OBJECTIVE:

I. To determine the recommended phase 2 dose of twice weekly berzosertib administered concurrently with conventionally fractionated radiation therapy (RT) to the breast/chest wall and regional nodes.

SECONDARY OBJECTIVES:

I. To describe the nature of toxicity that develops when an ATR inhibitor is administered concurrently with RT for breast cancer using provider assessments.

II. To assess long-term locoregional control, disease-free survival, distant disease-free survival, and overall survival of patients treated with this approach.

Study Design

Study Type: Interventional
Allocation: Na
Intervention Model: Single Group
Primary Purpose: Treatment
Masking: None

Eligibility Criteria

Ages: 18 Years to — (Adult, Older Adult)
Sex: All
Accepts Healthy Volunteers: No

Inclusion Criteria

•Males or females age >= 18 years. Note: Because no dosing or adverse event data are currently available on the use of berzosertib in combination with radiation therapy in patients < 18 years of age, children are excluded from this study, but will be eligible for future pediatric trials
•Patient with non-metastatic, histologically confirmed primary estrogen receptor (ER) =< 10%, progesterone receptor (PR) =< 10%, and HER2-negative breast cancer (triple negative breast cancer [TNBC]) either using the baseline biopsy specimen or the post-neoadjuvant chemotherapy (NAC) residual surgical specimen and RCB2 or RCB3, as defined by Symmans et al., 2007, and received neoadjuvant anthracycline and/or taxane-based chemotherapy OR Patient has non-metastatic, histologically confirmed primary ER > 10% and/or PR > 10%, HER2-negative breast cancer with RCB3 and received neoadjuvant anthracycline and/or taxane-based chemotherapy OR Patient has locoregionally recurrent TNBC or ER >10% and/or PR >10%, HER2-negative breast cancer.
•Note: Results from any Clinical Laboratory Improvement Act (CLIA)-certified lab are acceptable for the purpose of determining study eligibility.
•Note: For patients with primary breast cancer, there is no minimum number of neoadjuvant cycles required provided the patient received an anthracycline or taxane preoperatively. Patients with locoregionally recurrent breast cancer are not required to have received preoperative chemotherapy
•Patient has undergone total mastectomy or wide local excision with axillary staging, and the margins of the resected wide local excision or mastectomy specimens are free of invasive tumor and ductal carcinoma in situ (DCIS) or patient has undergone axillary surgery for regionally recurrent breast cancer. Unresected axillary level III, internal mammary, and supraclavicular nodal disease is permitted.
•Note: For patients who have undergone mastectomy, immediate reconstruction is allowed
•Patients must have completed their final breast surgery, including re-excision of margins for invasive cancer and DCIS, within 90 but not fewer than 21 days prior to registration unless patient received postoperative chemotherapy in which case patients must have completed their adjuvant chemotherapy within 90 days but not fewer than 28 days prior to registration
•The patient must have recovered from surgery with the incision completely healed and no signs of infection prior to registration
•Patients must be proceeding with breast/chest wall and regional nodal irradiation including internal mammary node treatment. For patients with bilateral breast cancer, RT must be indicated and administered only to one side
•Eastern Cooperative Oncology Group (ECOG) performance status =< 2
•Willing to provide tissue and blood samples for correlative research
•Leukocytes >= institutional lower limit of normal (LLN)
•Absolute neutrophil count >= institutional LLN
•Platelets >= institutional LLN
•Total bilirubin =< 1.5 x institutional upper limit of normal (ULN)
•Aspartate aminotransferase (AST) (serum glutamic oxaloacetic transaminase [SGOT])/alanine aminotransferase (ALT) (serum glutamate pyruvate transaminase [SGPT]) =< 3 x institutional ULN
•Creatinine =< 1.1 mg/dL OR
•Glomerular filtration rate (GFR) >= 45 mL/min/1.73 m^2 for patients with creatinine levels above 1.1 mg/dL
•Human immunodeficiency virus (HIV)-infected patients on effective anti-retroviral therapy with undetectable viral load within 6 months are eligible for this trial
•For patients with evidence of chronic hepatitis B virus (HBV) infection, the HBV viral load must be undetectable on suppressive therapy, if indicated
•Patients with a history of hepatitis C virus (HCV) infection must have been treated and cured. For patients with HCV infection who are currently on treatment, they are eligible if they have an undetectable HCV viral load
•Negative urine or serum pregnancy test for individuals of childbearing potential. Note: The effects of berzosertib on the developing human fetus are unknown. For this reason and because DNA-damage repair inhibitors as well as radiation used in this trial are known to be teratogenic, women of child-bearing potential and men must agree to use adequate contraception (hormonal or barrier method of birth control; abstinence) prior to study entry and for the duration of study participation, and for 6 months after completion of berzosertib administration. Should a woman become pregnant or suspect she is pregnant while she or her partner is participating in this study, she should inform her treating physician immediately. Men treated or enrolled on this protocol must also agree to use adequate contraception prior to the study, for the duration of study participation, and 6 months after completion of berzosertib administration
•Ability to understand and the willingness to sign a written informed consent document

Exclusion Criteria

•Patients who have had chemotherapy within 4 weeks prior to entering the study
•Prior RT to the ipsilateral chest wall or ipsilateral breast or thorax. Individuals with prior RT to the contralateral breast or chest wall are eligible
•Patients who have not recovered from adverse events due to prior anti-cancer therapy (i.e., have residual toxicities > grade 1) with the exception of alopecia and grade 1-2 taxane-induced neuropathy which will be permitted
•Patients who are receiving any other investigational agents or concomitant anti-neoplastic treatment, except endocrine therapies and bisphosphonates which are permitted without restriction even during protocol treatment. Postoperative chemotherapy is allowed but must be discontinued >28 days prior to registration
•History of allergic reactions attributed to compounds of similar chemical or biologic composition to berzosertib
•Berzosertib is primarily metabolized by CYP3A4; therefore, concomitant administration with strong inhibitors of CYP3A4 (e.g., ketoconazole, itraconazole, clarithromycin, ritonavir, indinavir, nelfinavir, and saquinavir) or inducers of CYP3A4 (e.g., rifampin, phenytoin, carbamazepine, phenobarbital, St. John's wort) should be avoided. Patients requiring any medications or substances that are strong inhibitors or inducers of CYP3A during the course of the study and for 14 days prior to enrollment are ineligible. 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 with uncontrolled intercurrent illness. This includes but is not limited to, ongoing uncontrolled serious infection requiring IV antibiotics at the time of registration, symptomatic congestive heart failure, unstable angina pectoris, symptomatic/uncontrolled cardiac arrhythmia, or psychiatric illness/social situations that would limit compliance with study requirements.
•Active systemic lupus, scleroderma, or dermatomyositis with a CPK level above normal
•Pregnant women are excluded from this study because berzosertib as a DNA damage repair inhibitor may have the potential for teratogenic or abortifacient. Because there is an unknown but potential risk for adverse events in nursing infants secondary to treatment of the mother with berzosertib, breastfeeding should be discontinued if the mother is treated with berzosertib
•Patients with known hereditary syndromes predisposing to radiosensitivity such as Li Fraumeni syndrome and ataxia telangiectasia are excluded from the study. Patients with mutations in breast cancer predisposition genes such as BRCA1, BRCA2, PALB2, CHEK2, and ATM are eligible
•Patients with a prior or concurrent malignancy, excluding non-melanoma skin cancers and non-invasive cancers whose natural history or treatment does not have the potential to interfere with the safety or efficacy assessment of the investigational regimen

Arms & Interventions

Treatment (berzosertib, radiation therapy)

Experimental

Patients receive berzosertib IV over 60 minutes BIW for 5 weeks in the absence of disease progression or unacceptable toxicity. Patients undergo RT 5 days a week for 5-6 weeks depending on the type of surgery undergone. Patients also undergo a collection of blood on study.

Intervention: Questionnaire Administration (Other)

Treatment (berzosertib, radiation therapy)

Experimental

Intervention: Radiation Therapy (Radiation)

Treatment (berzosertib, radiation therapy)

Experimental

Intervention: Biospecimen Collection (Procedure)

Treatment (berzosertib, radiation therapy)

Experimental

Intervention: Quality-of-Life Assessment (Other)

Treatment (berzosertib, radiation therapy)

Experimental

Intervention: Berzosertib (Drug)

Outcomes

Primary Outcomes

Recommended phase II dose of berzosertib

Time Frame: Up to 4 weeks post treatment

The maximum tolerated dose will be defined as the highest dose level with a dose-limiting toxicity rate closest to 0.25 and =\< .33.

Secondary Outcomes

Incidence of adverse events (AEs)(Up to 3 years)
Time to progression(From study registration until the tumor recurs in the ipsilateral breast, chest wall, axillary, supracavicular or internal mammary nodes (if before or synchronous with a systemic recurrence), assessed up to 3 years)
Disease-free survival (DFS)(From study registration until the tumor recurs or the patient dies, whichever comes first, assessed up to 3 years)
Distant DFS(From study registration until distant disease recurs or the patient dies, whichever comes first, assessed up to 3 years)
Overall survival(From study registration until death due to any cause, assessed up to 3 years)
Change in patient-related outcomes (PRO)(Baseline up to 3 years)
Alterations in deoxyribonucleic acid damage response and repair genes(Up to 3 years)

Investigators

Sponsor

National Cancer Institute (NCI)

Sponsor Class

Nih

Responsible Party

Sponsor

Study Sites (15)

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