This phase I trial tests the safety, side effects, and best dose of novobiocin in treating cancer patients with alterations in deoxyribonucleic acid (DNA) repair genes. Novobiocin is an antibiotic that blocks the activity of a protein called DNA polymerase theta, which helps repair DNA that has become damaged as cells grow and divide. Cancer cells that cannot repair their damaged DNA die. This medication may help shrink or stabilize cancer with a mutation in DNA repair genes.
PRIMARY OBJECTIVE: I. To determine the maximum tolerated dose (MTD) and recommended phase 2 dose (RP2D) of novobiocin sodium (novobiocin) administered on a 5-days on/2-days off schedule in patients with solid tumors carrying homologous recombination (HR) or DNA damage repair (DDR) alterations that are poly (ADP-ribose) polymerase (PARP) inhibitor-naïve or -resistant. SECONDARY OBJECTIVES: I. To observe and record anti-tumor activity. II. To evaluate the safety and tolerability of novobiocin administered on a 5-days on/2-days off schedule in patients with solid tumors carrying HR or DDR alterations that are PARP inhibitor-naïve or -resistant. III. To characterize the pharmacokinetic parameters of novobiocin administered on a 5-days on/2-days off schedule in patients with solid tumors carrying HR or DDR alterations that are PARP inhibitor- naïve or -resistant. IV. To determine the minimally biologically effective dose of novobiocin in patients with solid tumors carrying HR or DDR alterations that are PARP inhibitor-naive or -resistant using pre- and on-treatment biopsies to characterize novobiocin-mediated pharmacodynamic effects. V. To conduct a preliminary assessment of anti-tumor activity of novobiocin administered on a 5-days on/2-days off schedule. EXPLORATORY OBJECTIVES: I. Whole exome sequencing (WES) of pre- and time-of-progression biopsies to characterize tumors for HR deficiency (deleterious mutations/deletions in genes known to be involved in HR) and genomic changes mediating acquired resistance to novobiocin. II. Ribonucleic acid sequencing (RNAseq) on pre- and on-treatment biopsies, as well as time-of-progression biopsies for serial analysis of gene expression to identify determinants of response, resistance, and pathway adaptation to novobiocin. III. Correlation of baseline level of POLQ messenger ribonucleic acid (mRNA) with clinical outcome (complete response \[CR\], partial response \[PR\] or stable disease \[SD\] versus \[vs.\] progressive disease \[PD\]). IV. Correlation of ATM immunohistochemistry (IHC) with clinical outcome in patients with ATM-mutant cancers. OUTLINE: This is a dose-escalation study. Patients receive novobiocin sodium orally (PO) once daily (QD) for 5 days in a row followed by 2 days off each week. Treatment repeats every 28 days in the absence of disease progression or unacceptable toxicity. Patients also undergo tumor biopsy, medical imaging scans, and collection of blood samples throughout the trial. After completion of study treatment, patients are followed up every 3-6 months for 2 years.
Study Type
INTERVENTIONAL
Allocation
NA
Purpose
TREATMENT
Masking
NONE
Enrollment
43
Undergo tumor biopsy
Undergo blood sample collection
Undergo medical imaging scans
Given PO
City of Hope Comprehensive Cancer Center
Duarte, California, United States
RECRUITINGUCI Health - Chao Family Comprehensive Cancer Center and Ambulatory Care
Irvine, California, United States
RECRUITINGUC San Diego Moores Cancer Center
La Jolla, California, United States
RECRUITINGLos Angeles General Medical Center
Los Angeles, California, United States
Maximum tolerated dose (MTD) and recommended phase 2 dose of continuous novobiocin administration
The MTD will be identified as the dose for which the isotonic estimate of the toxicity rate is closest to the target toxicity rate. Standard hematological and non-hematologic parameters, scored using Common Terminology Criteria for Adverse Events version 5.0, will be used to define dose limiting toxicity.
Time frame: Up to 2 years
Radiological response
Radiological response will be assessed by Response Evaluation Criteria in Solid Tumors version 1.1 criteria and will be graded as complete response (CR), partial response (PR), stable disease (SD) and progressive disease.
Time frame: Up to 2 years
Response rate
Response rate (CR + PR) will be summarized by frequencies and percentages, by dose level.
Time frame: Up to 2 years
Clinical benefit rate
Clinical benefit rate (CR + PR + SD \> 24 weeks) will be summarized by frequencies and percentages, by dose level.
Time frame: Up to 2 years
Progression free survival
Will be summarized using Kaplan-Meier curves by dose-level (for dose levels with sufficient sample size to permit estimation).
Time frame: From study enrollment until the identification of disease progression or death, assessed up to 2 years
Median duration of response
Median duration of response will be reported with ranges.
Time frame: Up to 2 years
Plasma concentrations of novobiocin
Will be quantitatively measured using liquid chromatography with tandem mass spectrometry to derive standard pharmacokinetic parameters.
Time frame: Days 1 & 17 of cycle 1 (pre-treatment and 0.5, 1, 2, 4, 6, 8, & 24 hours post-treatment) and days 2 & 25 of cycle 2 (pre-dose and 24 hours post-treatment)
Biological effectiveness
Biological effectiveness will be defined as an increase in the percentage of RAD51-foci positive cells (\> 5 foci/nucleus) from =\< 10% on the pre-treatment biopsy to \>= 30% at the on-treatment biopsy in patients with poly (ADP-ribose) polymerase inhibitor-resistant tumors. A biologically effective dose will be one that induces an increase in gamma-H2AX in the on-treatment compared to the pre-treatment biopsy.
Time frame: Up to 2 years
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USC / Norris Comprehensive Cancer Center
Los Angeles, California, United States
RECRUITINGUC Irvine Health/Chao Family Comprehensive Cancer Center
Orange, California, United States
RECRUITINGUniversity of California Davis Comprehensive Cancer Center
Sacramento, California, United States
RECRUITINGUC San Diego Medical Center - Hillcrest
San Diego, California, United States
RECRUITINGUniversity of Chicago Comprehensive Cancer Center
Chicago, Illinois, United States
RECRUITINGNational Cancer Institute Developmental Therapeutics Clinic
Bethesda, Maryland, United States
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