A Study of Rucaparib Administered With Radiation in Patients With Triple Negative Breast Cancer With an Incomplete Response Following Chemotherapy

Breast Cancer Clinical Trial

Official title:

A Phase I Study of Rucaparib Administered Concurrently With Postoperative Radiotherapy in Patients With Triple Negative Breast Cancer With an Incomplete Pathologic Response Following Neoadjuvant Chemotherapy

Clinical Trial Details — Status: Active, not recruiting

Administrative data

• NCT number: NCT03542175
• Other study ID #: 18-002
• Status: Active, not recruiting
• Phase: Phase 1
• Start date: May 23, 2018
• Est. completion date: July 25, 2024

Study information

• Verified date: August 2023
• Source: Memorial Sloan Kettering Cancer Center
• Contact: n/a
• Is FDA regulated: No
• Study type: Interventional

Clinical Trial Summary

The purpose of this study is to test the safety of a study drug called Rucaparib, administered in combination with the type of radiation therapy that is usually given to women with your form of breast cancer.

Recruitment information / eligibility

• Status: Active, not recruiting
• Enrollment: 31
• Est. completion date: July 25, 2024
• Est. primary completion date: July 25, 2024
• Accepts healthy volunteers: No
• Gender: Female
• Age group: 18 Years and older

Eligibility

Inclusion Criteria:

• Female, = 18 years of age.
• Non-metastatic, histologically or cytologically-confirmed TNBC (defined as ER <1%, PR <1%, her-2-neu 0-1+ by IHC or FISH-negative or as per MD discretion), with evidence of residual disease in the breast or lymph nodes after neoadjuvant chemotherapy, at the time of definitive surgical treatment.
• Non-metastatic, histologically or cytologically-confirmed hormone-receptor positive, Her2/neu negative breast cancer (defined as ER >1% or PR >1% AND Her-2/neu 0-1+ by IHC or FISH-negative, or as per MD discretion), with evidence of residual grade 3 invasive breast cancer AND either 1) >5 cm of residual disease in the breast OR 2) = 4 axillary LNs in the axilla after neoadjuvant chemotherapy, at the time of definitive surgical treatment.
• Definitive surgical treatment with breast-conserving surgery or mastectomy and axillary lymph node evaluation.
• At least 6-month life expectancy, ECOG Performance status < 2.
• Willingness to discontinue any cytotoxic chemotherapeutic agents, and biologic therapy at least 2 weeks prior to the start of RT.
• Adequate organ function (assessed within 30 days prior to initiation of protocol treatment, unless otherwise indicated) as follows: Hematology
• Absolute Neutrophil Count (ANC) =1500/mm^3
• Platelet Count =100,000/mm^3
• Hemoglobin =9.0 g/dL (after transfusion if required) Renal Function
• Creatinine Serum = 1.5 mg/dL or Creatinine Clearance = 45 mL/min^a Hepatic Function
• Bilirubin = 1.5 mg/dL
• Aspartate Aminotransferase (AST) = 2.5 x ULN^b
• Alanine Aminotransferase (ALT) = 2.5 x ULN ULN = upper normal limit of institution's normal range

1. If calculated creatinine clearance is < 45mL/min, a 24-hour urine collection for creatinine clearance may be performed

2. Subjects with documented Gilbert's disease may have bilirubin up to 2.5 mg/dL

• Negative serum pregnancy test within 14 days prior to study treatment if a woman has child-bearing potential. Subjects of child bearing potential are those who have not been surgically sterilized or have not been free from menses for > 1 year.
• Ability to swallow and retain oral medications.
• Written informed consent obtained from subject and ability for subject to comply with the requirements of the study.
• Female subjects of childbearing potential should be willing to use 2 methods of birth control or be surgically sterile, or abstain from heterosexual activity for the duration of study participation. Should a woman become pregnant while participating on study, she should inform the treating physician immediately.

Exclusion Criteria:

• Gross residual tumor on imaging or positive margins after breast conserving surgery that are un-excised, as radiation dose in the study will be limited to 60 Gy.
• Complete pathologic response to NAC.
• Receipt of PARP inhibitor prior to RT.
• Pregnant or expecting to conceive within the projected duration of the trial, starting with screening visit through 180 days after the last dose of trial treatment.
• Prior history of radiation therapy to the ipsilateral breast and/or regional nodes is not allowed (prior RT to other sites is permitted).
• Patients with breast augmentation implants are excluded.
• History of allergic reactions attributed to compounds of similar chemical or biologic composition to rucaparib.
• Concomitant anti-neoplastic treatment is not allowed during protocol treatment and should be completed at least 2 weeks prior to commencement of protocol treatment, with resolution of associated acute toxicities. Bisphosphonates are permitted without restriction even during protocol treatment. Maintenance pembrolizumab is permitted during the protocol treatment.
• Significant comorbidity: Patients with clinically significant and uncontrolled major disease or disorder that could exacerbate potential toxicities, confound safety assessments, require excluded therapy for management, or limit study compliance.
• Ongoing therapy with other investigational agents. Patients may not be receiving any other investigational agents.
• Unresolved toxicity from other agents. Patients with unresolved CTCAE v4.03 Grade 3 or greater toxicity from prior administration of another investigational drug and/or anti-cancer treatment are not eligible.

Related Conditions & MeSH terms

• Breast Cancer
• Breast Neoplasms
• Triple Negative Breast Neoplasms

Intervention

Drug:
• Rucaparib
one dose level (300 mg BID, 400 mg BID, 500 mg BID or 600 mg BID) concurrently with a 6-week course of radiotherapy and 4 additional weeks of maintenance rucaparib at the same dose level.

Radiation:
• Radiotherapy
50 Gy in 2 Gy per fraction to the breast or chest wall with or without regional nodes plus a 10 Gy boost to the lumpectomy cavity, to a total dose of 60 Gy. A 10 Gy boost to the post-mastectomy scar is allowed at the discretion of the treating physician.

Locations

Country	Name	City	State
United States	Memorial Sloan Kettering at Basking Ridge	Basking Ridge	New Jersey
United States	Memorial Sloan Kettering Commack	Commack	New York
United States	Memorial Sloan Kettering Westchester	Harrison	New York
United States	Memorial Sloan Kettering Monmouth	Middletown	New Jersey
United States	Memorial Sloan Kettering Bergen	Montvale	New Jersey
United States	Memorial Sloan Kettering Cancer Center	New York	New York
United States	Norwalk Hospital	Norwalk	Connecticut
United States	Memorial Sloan Kettering Nassau	Uniondale	New York

Sponsors (2)

Lead Sponsor	Collaborator
Memorial Sloan Kettering Cancer Center	Clovis Oncology, Inc.

Country where clinical trial is conducted

United States, 

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	defining the maximum tolerated dose (MTD)	proportion of subjects encountering toxicity at each dose level. The trial will be monitored using TITE-CRM. Assuming a model for the time to occurrence of toxic response as a function of dose, the method allows information from all enrolled patients to be used when allocating a new patient to a dose level.	1 year

External Links

•   Memorial Sloan Kettering Cancer Center