TAS-116 Plus Palbociclib in Breast and Rb-null Cancer

Phase Ib IIT of Heat Shock Protein 90 Inhibitor TAS-116 Combined With Cyclin-dependent Kinase 4/6 Inhibitor Palbociclib in Advanced Breast Cancer Progressing on Palbociclib & Treatment-refractory Solid Tumors With Retinoblastoma Deficiency

The purpose of this study is to evaluate the safety and efficacy of TAS-116 with palbociclib in two groups of patients:

• Patients with advanced breast cancer that has become worse after taking palbociclib alone
• Patients with cancers that have an abnormality in a gene called the "retinoblastoma gene".

Study Overview

• Status: Recruiting
• Conditions: Soft Tissue Sarcoma; Advanced Breast Cancer; SCLC; Bladder Cancer; Endometrial Cancer; Treatment-Refractory Solid Tumors; Retinoblastoma Deficiency
• Intervention / Treatment: Drug: Palbociclib Oral Product; Drug: TAS-116; Drug: TAS-116; Drug: TAS-116

• Study Type: Interventional
• Enrollment (Estimated): 27
• Phase: Phase 1

Contacts and Locations

• Study Contact: Name: Brown University Oncology Research Group; Phone Number: 401-863-3000; Email: BrUOG@brown.edu

Study Locations

• United States
  • Rhode Island
    • Providence, Rhode Island, United States, 02903
      • Recruiting
      • Lifespan Cancer Institute
      • Contact: Phone Number: 844-222-2881

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 18 years and older (Adult, Older Adult)
• Accepts Healthy Volunteers: No

Description

Inclusion Criteria:

• Histologically or cytologically confirmed solid tumors such as ER/PR(+), HER2(-) breast cancer, SCLC, soft tissue sarcoma, endometrial cancer, bladder cancer that has progressed on at least one standard therapy or for which there is no standard therapy. (Metastases or recurrences do not need to be histologically confirmed.)
• Patients with breast cancer whose tumors progressed after prior palbociclib.
• Patients with any treatment-refractory solid tumor that is RB-deficient (9 patient cohort expansion after phase Ib dose de-escalation phase). Examples include SCLC, soft tissue sarcoma, endometrial cancer, bladder cancer. Patients should have no available standard therapy.
• Patients must have at least one area of measurable disease per RECIST Version 1.1 for solid tumors.
• Recovered (< grade 1) from clinically significant effects of any prior surgery, radiotherapy or other anti-neoplastic therapy, except alopecia
• Males or females age >18 years
• Life expectancy > 60 days as documented by treating investigator
• Eastern Cooperative Oncology Group (ECOG) performance status score 0 or 1
• Patients must have normal organ and marrow function as defined in detail in the study protocol
• Women must not pregnant and not nursing.
• Women of childbearing potential must have a negative pregnancy test (urine or serum) within 7 days prior to starting the study drug (prior to Day 1 of treatment). Both males and females must agree to use effective birth control during the study (prior to the first dose and for 7 months after the last dose for females and 4 months after the last dose for males) if conception is possible during this interval. Female patients are considered to not be of childbearing potential if they have a history of hysterectomy or are post-menopausal defined as no menses for 12 months without an alternative medical cause
• Post-menopausal women (surgical menopause or lack of menses >12 months) do not need to have a pregnancy test, please document status. (Female patients are considered to not be of childbearing potential if they have a history of hysterectomy or are post-menopausal defined as no menses for 12 months without an alternative medical cause.).
• Patient must be able to swallow capsules and retain orally administered medication and not have any clinically significant gastrointestinal abnormalities that may alter absorption, such as malabsorption syndrome or major resection of the stomach or bowels.
• Patients must be able to understand and willing to sign a written informed consent document and to comply with the protocol.
• Women of childbearing potential enrolled in this study must agree to use adequate barrier birth control measures during the course of the study and for at least 7 months after the last dose on study.
• Men enrolled in this study must agree to use adequate barrier birth control measures during the course of the study and for at least 4 months after the last treatment on study.
• In addition to alopecia and stable peripheral neurotoxicity below grade 2, any clinical toxicity associated with previous treatment prior to enrollment must be restored to baseline or grade 1.

Exclusion Criteria:

• Pregnant or breastfeeding women are excluded from this study.
• History of allergic reactions attributed to compounds of similar chemical or biologic composition to palbociclib or TAS-116.
• Patients receiving any medications or substances that are substrates, inducers, or inhibitors of the CYP3A enzyme.
• Patients with a history of primary central nervous system tumors or brain metastases or who have signs/symptoms attributable to brain metastases and have not been assessed with radiologic imaging to rule out the presence of brain metastases.
• Patients with treated brain metastases that are asymptomatic and have been clinically stable for at least 4 weeks will be eligible. Medical condition exclusions
• Patients may not be receiving any other investigational agents or anti-cancer therapies.
• Patients who have a history of another primary malignancy, with the exception of locally excised nonmelanoma skin cancer and carcinoma in situ of uterine cervix. A patient who has had no evidence of disease from another primary cancer for 3 or more years is allowed to participate in the study.
• Patients with known history of hepatitis C or chronic active hepatitis B.
• Patients with known diagnosis of human immunodeficiency virus (HIV) infection.
• Any significant ophthalmologic abnormality
• Any other condition that may increase the risk of corneal epithelial damage
• Corrected visual acuity < 0.5 (using the international visual acuity measurement standard)
• Patients who have any severe and/or uncontrolled medical conditions or other conditions that, in the opinion of the Investigator and sponsor, could affect the patient's participation in the study such as:
• Uncontrolled diabetes mellitus.
• Nonmalignant medical illnesses that are uncontrolled or whose control may be jeopardized by treatment with this study treatment.
• Liver disease such as decompensated liver disease, chronic active hepatitis, or chronic persistent disorders.
• Autoimmune and ischemic disorders (>=Grade 2).
• Ongoing or active infection symptomatic congestive heart failure, unstable angina pectoris, cardiac arrhythmia within 6 months of registration, or psychiatric illness/social situations that would limit compliance with study requirements.
• Significant gastrointestinal abnormalities, including active ulcerative colitis, chronic diarrhea associated with intestinal malabsorption, Crohn's disease, and/or prior surgical procedures affecting absorption or requirement for intravenous alimentation.
• Patients with any comorbid medical disorder that, in the opinion of the Investigator or sponsor, may increase the risk of toxicity.
• Patients who have a history of noninfectious (toxic, autoimmune) hepatitis or alcoholism.
• Patients with a lifetime history of porphyria or psoriasis.
• Patients with documented glucose-6-phosphate dehydrogenase deficiency.
• Patients with a history of seizure disorder (except infant febrile seizures).
• Patients with a lifetime history of dermatitis as an allergic/toxic reaction to any medication.
• Impaired cardiac function or clinically significant cardiac disease.
• Impaired pulmonary function, history of interstitial lung disease (ILD) and/or pneumonitis.
• Weight loss of >10% in the past month.Organ function and laboratory values exclusion
• Patients who have impaired cardiac function or clinically significant cardiac disease
• Chemotherapy, biologic therapy, targeted therapy, immunotherapy, radiotherapy, or investigational agents within 5 half-lives or within 4 weeks (whichever is shorter) prior to administration of first dose of study drug on Day 1 or have not recovered from the side effects of such therapy
• Prior treatment with HSP90 inhibitor.
• Major surgery/surgical therapy for any cause within 4 weeks of screening.

Study Plan

How is the study designed?

Design Details

• Primary Purpose: Treatment
• Allocation: Non-Randomized
• Interventional Model: Single Group Assignment
• Masking: None (Open Label)

Number of Arms

3

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
Experimental: Level 0 Starting Palbociclib with TAS-116	Drug: Palbociclib Oral Product; 125 mg/day (FDA approved dose) or the last tolerated dose before progression for 21 days of a 28-day cycle; Drug: TAS-116; 120 mg/day, 5 days on 2 days off, for days 1-28 of a 28 day cycle; Drug: TAS-116; 80 mg/day, 5 days on 2 days off, for days 1-28 of a 28 day cycle; Drug: TAS-116; 40 mg/day, 5 days on 2 days off, for days 1-28 of a 28 day cycle
Experimental: Level -1 Palbociclib with TAS-116	Drug: Palbociclib Oral Product; 125 mg/day (FDA approved dose) or the last tolerated dose before progression for 21 days of a 28-day cycle; Drug: TAS-116; 120 mg/day, 5 days on 2 days off, for days 1-28 of a 28 day cycle; Drug: TAS-116; 80 mg/day, 5 days on 2 days off, for days 1-28 of a 28 day cycle; Drug: TAS-116; 40 mg/day, 5 days on 2 days off, for days 1-28 of a 28 day cycle
Experimental: Level -2 Palbociclib with TAS-116	Drug: Palbociclib Oral Product; 125 mg/day (FDA approved dose) or the last tolerated dose before progression for 21 days of a 28-day cycle; Drug: TAS-116; 120 mg/day, 5 days on 2 days off, for days 1-28 of a 28 day cycle; Drug: TAS-116; 80 mg/day, 5 days on 2 days off, for days 1-28 of a 28 day cycle; Drug: TAS-116; 40 mg/day, 5 days on 2 days off, for days 1-28 of a 28 day cycle

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Safety and tolerability of TAS-116 with palbociclib.	Dose Limiting Toxicities (DLTs) will include grade 4 neutropenia lasting longer than 7 days, neutropenic fever, grade 4 thrombocytopenia or any Grade 3 non-hematologic toxicity not controlled with medical management.	Start of study treatment through 90 days after last treatment.

Secondary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Response rate	Complete response (CR), partial response (PR), stable disease (SD) at RP2D will be estimated according to Response Evaluation Criteria in Solid Tumors version 1.1 (RECIST v.1.1)	2 months, 6 months, and 12 months of treatment

Collaborators and Investigators

• Sponsor: Brown University
• Collaborators: Taiho Oncology, Inc.
• Investigators: Principal Investigator: Wafik El-Deiry, MD, PhD, FACP, Brown University & Lifespan Cancer Institute

Study record dates

Study Major Dates

• Study Start (Actual): September 12, 2023
• Primary Completion (Estimated): August 1, 2024
• Study Completion (Estimated): August 1, 2025

Study Registration Dates

• First Submitted: December 9, 2022
• First Submitted That Met QC Criteria: December 16, 2022
• First Posted (Actual): December 19, 2022

Study Record Updates

• Last Update Posted (Actual): September 14, 2023
• Last Update Submitted That Met QC Criteria: September 12, 2023
• Last Verified: September 1, 2023

More Information

Terms related to this study

• Additional Relevant MeSH Terms: Skin Diseases; Neoplasms, Connective and Soft Tissue; Neoplasms by Histologic Type; Neoplasms; Urogenital Neoplasms; Neoplasms by Site; Neoplasms, Glandular and Epithelial; Eye Diseases; Uterine Neoplasms; Genital Neoplasms, Female; Uterine Diseases; Retinal Diseases; Breast Diseases; Neoplasms, Neuroepithelial; Neuroectodermal Tumors; Neoplasms, Germ Cell and Embryonal; Neoplasms, Nerve Tissue; Eye Diseases, Hereditary; Eye Neoplasms; Retinal Neoplasms; Female Urogenital Diseases; Female Urogenital Diseases and Pregnancy Complications; Urogenital Diseases; Genital Diseases; Genital Diseases, Female; Sarcoma; Breast Neoplasms; Endometrial Neoplasms; Retinoblastoma; Molecular Mechanisms of Pharmacological Action; Enzyme Inhibitors; Antineoplastic Agents; Protein Kinase Inhibitors; Palbociclib
• Other Study ID Numbers: BrUOG 387

Plan for Individual participant data (IPD)

• Plan to Share Individual Participant Data (IPD)?: NO

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: Yes
• Studies a U.S. FDA-regulated device product: No