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A Phase I/II Study of VLS-1488 in Subjects With Advanced Cancer

Phase 1
Recruiting
Conditions
Advanced Solid Tumor
High Grade Serous Adenocarcinoma of Ovary
Squamous Non-small-cell Lung Cancer
Triple Negative Breast Cancer
Gastric Adenocarcinoma
Colorectal Adenocarcinoma
Esophageal Squamous Cell Carcinoma
Esophageal Adenocarcinoma
Gastroesophageal Junction Adenocarcinoma
Ovarian Carcinosarcoma
Interventions
Registration Number
NCT05902988
Lead Sponsor
Volastra Therapeutics, Inc.
Brief Summary

This is a first-in-human phase I/II study to examine the safety, tolerability and preliminary efficacy of VLS-1488 in subjects with advanced cancers.

Detailed Description

This a first-in-human phase I/II study designed to assess the safety, tolerability and preliminary efficacy of VLS-1488 monotherapy and consists of two parts: Dose Escalation and Dose Expansion.

Dose Escalation will examine the safety and tolerability of VLS-1488 in different solid tumor types at various dose levels through a series of Dose Escalation and Backfill Cohorts to identify the Maximum Tolerated Dose (MTD) and to select dose levels for Dose Expansion. The criteria for dose (de-)escalation will be based on a Bayesian Optimal Interval (BOIN) design.

Dose Expansion will examine the safety, tolerability, Drug Drug Interaction (DDI) risk, Food Effect (FE) and preliminary efficacy of VLS-1488 in different tumor types and/or dose levels of interest through various expansion cohorts.

VLS-1488 will be given orally in 28-day cycles. Dosing will be continued until disease progression, unacceptable toxicity, withdrawal of consent, or other stopping criteria are met.

Recruitment & Eligibility

Status
RECRUITING
Sex
All
Target Recruitment
120
Inclusion Criteria
  • All Parts: Age ≥ 18 years, ECOG Performance Status ≤ 1, at least 1 site of measurable disease evaluable by CT scan or MRI per RECIST 1.1, able to take oral medication without alteration
  • Dose Escalation: No available therapeutic options to provide clinically meaningful benefits in the following tumor types: High Grade Serous Ovarian Cancer, Squamous Non -Small Cell Lung Cancer, Triple Negative Breast Cancer, Gastric Adenocarcinoma (not EBV+), Colorectal, Esophageal Squamous Cell Carcinoma, Esophageal Adenocarcinoma, Gastroesophageal Junction, Bladder (transitional cell), Head and Neck Squamous Cell Carcinomas (not nasopharynx, sinonasal or lip), Ovarian Carcinosarcoma, CN-high Endometrial/Uterine
  • Dose Expansion: Must have been previously treated with several lines of standard of care treatment specified in the protocol in the following tumor types: High Grade Serous Ovarian Cancer, Squamous Non-Small Cell Lung Cancer, Triple Negative Breast Cancer, Gastric Adenocarcinoma (not EBV+), Colorectal, Esophageal Squamous Cell Carcinoma, Esophageal Adenocarcinoma, Head and Neck Squamous Cell Carcinomas (not nasopharynx, sinonasal or lip), CN-high Endometrial/Uterine

Key

Exclusion Criteria
  • MSI-H, dMMR, POLE gene hotspot mutated, or known hypermutator phenotype
  • Previously received KIF18A inhibitor
  • Current CNS metastases or leptomeningeal disease
  • Cardiac parameters: MI or stroke ≤ 1 year, unstable angina/PE/DVT/CABG ≤ 6 months, NYHA Class ≥ II, LVEF < 50%
  • Inability to comply with concomitant medication restrictions with respect to strong inhibitors and inducers of CYP3A, and clinical inhibitors of MDR1 (P-gp) and BCRP
  • Any clinically significant ascites or pleural effusions at time of enrollment, or any therapeutic paracentesis or thoracentesis within 28 days of planned first dose of study drug
  • Bowel obstruction or GI perforation within 6 months of planned first dose of study drug

Study & Design

Study Type
INTERVENTIONAL
Study Design
SEQUENTIAL
Arm && Interventions
GroupInterventionDescription
Dose Escalation: Dose Escalation CohortsVLS-1488Subjects will be enrolled at various doses and/or schedules of VLS-1488. These Dose Escalation Cohorts will be utilized to identify the MTD and to select dose levels for Dose Expansion.
Dose Escalation: Backfill CohortsVLS-1488Additional subjects may be enrolled at any dose level that does not meet de-escalation or elimination rules per the BOIN design. These Backfill Cohorts will be utilized to build additional data to support selection of doses and/or tumor types for further study in Dose Expansion.
Dose Expansion: Exploration CohortsVLS-1488Subjects with a selected single tumor type will be randomized 1:1 into Exploration Cohorts at two or more dose levels of interest. A subset of subjects will have additional assessments to examine the potential for VLS-1488 to interact with other drugs and the effect of food on VLS-1488 absorption.
Dose Expansion: Development CohortsVLS-1488Subjects with other tumor types will be enrolled at a single dose level of interest. These Development Cohorts will be utilized to examine the preliminary efficacy of VLS-1488 in various tumor types.
Primary Outcome Measures
NameTimeMethod
Dose Expansion: Frequency of Trigger Events (TEs)Up to 18 months
Dose Expansion: Objective Response Rate (ORR) as assessed by Response Evaluation Criteria in Solid Tumors (RECIST) version 1.1Up to 18 months
Dose Escalation: Frequency of Treatment-Emergent AEs (TEAEs) graded per NCI-CTCAE version 5.0Up to 12 months
Dose Escalation: Incidence of Dose Limiting Toxicities (DLTs) in DLT-evaluable subjectsUp to 12 months
Dose Escalation: Determination of the MTD of VLS-1488Up to 12 months
Dose Escalation: Frequency of Serious Adverse Events (SAEs) graded according to the National Cancer Institute Common Terminology Criteria for Adverse Events (NCI-CTCAE) version 5.0Up to 12 months
Dose Escalation: Frequency of Treatment-related Adverse Events (AEs) graded per NCI-CTCAE version 5.0Up to 12 months
Dose Escalation: Frequency of Dose Interruptions and Permanent Treatment DiscontinuationsUp to 12 months
Secondary Outcome Measures
NameTimeMethod
Dose Expansion: Area Under the Plasma Concentration-Time Curve (AUC) of Midazolam and its metabolite 1'-hydroxymidazolamUp to 18 months
Dose Escalation & Dose Expansion: Trough Concentration (Ctrough) of VLS-1488Up to 32 months
Dose Escalation & Dose Expansion: Time to Maximum Plasma Concentration (Tmax) of VLS-1488Up to 32 months
Dose Expansion: Evaluation of CA-125 response by Gynecologic Cancer InterGroup (GCIG) criteria (High Grade Serous Ovarian Cancer only)Up to 18 months
Dose Escalation & Dose Expansion: Duration of Response (DOR) as assessed by RECIST version 1.1Up to 32 months
Dose Escalation & Dose Expansion: Disease Control Rate (DCR) as assessed by RECIST version 1.1Up to 32 months
Dose Escalation & Dose Expansion: Progression Free Survival (PFS) as assessed by RECIST version 1.1Up to 32 months
Dose Escalation: ORR as assessed by RECIST version 1.1Up to 12 months
Dose Expansion: Maximum Plasma Concentration (Cmax) of Midazolam and its metabolite 1'-hydroxymidazolamUp to 18 months
Dose Escalation & Dose Expansion: AUC of VLS-1488Up to 32 months
Dose Expansion: Frequency of SAEs graded according to NCI-CTCAE version 5.0Up to 18 months
Dose Expansion: Frequency of Treatment-related AEs graded according to NCI-CTCAE version 5.0Up to 18 months
Dose Expansion: Frequency of TEAEs graded according to NCI-CTCAE version 5.0Up to 18 months
Dose Escalation & Dose Expansion: Cmax of VLS-1488Up to 32 months
Dose Escalation & Dose Expansion: Ratio of Total Cholesterol to 4β-hydroxycholesterol in plasmaUp to 32 months
Dose Escalation & Dose Expansion: Increase in the number of Phospho-Histone 3 positive tumor cellsUp to 32 months
Dose Escalation & Dose Expansion: Increase in Micronuclei in Circulating Tumor CellsUp to 32 months
Dose Expansion: Frequency of Dose Interruptions and Permanent Treatment DiscontinuationsUp to 18 months
Dose Escalation & Dose Expansion: Frequency of Micronucleated Reticulocytes in bloodUp to 32 months

Trial Locations

Locations (13)

University of Southern California

🇺🇸

Los Angeles, California, United States

University of Colorado Cancer Center

🇺🇸

Aurora, Colorado, United States

Yale Cancer Center

🇺🇸

New Haven, Connecticut, United States

Community Health Network

🇺🇸

Indianapolis, Indiana, United States

Johns Hopkins Sidney Kimmel Comprehensive Cancer Center

🇺🇸

Baltimore, Maryland, United States

University of Michigan

🇺🇸

Ann Arbor, Michigan, United States

START Midwest

🇺🇸

Grand Rapids, Michigan, United States

Memorial Sloan Kettering Cancer Center

🇺🇸

New York, New York, United States

The Christ Hospital

🇺🇸

Cincinatti, Ohio, United States

Women & Infants Hospital

🇺🇸

Providence, Rhode Island, United States

M.D. Anderson Cancer Center

🇺🇸

Houston, Texas, United States

Froedtert & the Medical College of Wisconsin

🇺🇸

Milwaukee, Wisconsin, United States

Kellogg Cancer Center

🇺🇸

Evanston, Illinois, United States

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