A Study of Sovilnesib in Subjects With Ovarian Cancer
A Phase 1b Dose Optimization Study of Sovilnesib (an Oral KIF18A Inhibitor) in Subjects With Advanced High Grade Serous Ovarian Cancer
1 other identifier
interventional
120
1 country
13
Brief Summary
This is a randomized, phase 1b study to assess the safety, tolerability, pharmacokinetics (PK), and efficacy of sovilnesib at different dose levels to establish the Recommended Phase 2 Dose (RP2D) of sovilnesib in subjects with high grade serous ovarian cancer (HGSOC).
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for phase_1
Started Apr 2024
Typical duration for phase_1
13 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
October 10, 2023
CompletedFirst Posted
Study publicly available on registry
October 16, 2023
CompletedStudy Start
First participant enrolled
April 4, 2024
CompletedPrimary Completion
Last participant's last visit for primary outcome
March 1, 2026
CompletedStudy Completion
Last participant's last visit for all outcomes
April 1, 2026
CompletedOctober 20, 2025
October 1, 2025
1.9 years
October 10, 2023
October 15, 2025
Conditions
Keywords
Outcome Measures
Primary Outcomes (6)
Determination of the Recommended Phase 2 Dose (RP2D) of Sovilnesib
Up to 24 months
Frequency and duration of Serious Adverse Events (SAEs) graded according to the National Cancer Institute Common Terminology Criteria for Adverse Events (NCI-CTCAE) version 5.0
Up to 24 months
Frequency and duration of Treatment-related Adverse Events (AEs) graded per NCI-CTCAE version 5.0
Up to 24 months
Frequency and duration of Treatment-Emergent AEs (TEAEs) graded per NCI-CTCAE version 5.0
Up to 24 months
Frequency of Dose Interruptions and Permanent Treatment Discontinuations
Up to 24 months
Objective Response Rate (ORR) as assessed by Response Evaluation Criteria in Solid Tumors (RECIST) version 1.1
Up to 24 months
Secondary Outcomes (5)
Duration of Response (DOR) as assessed by RECIST version 1.1
Up to 24 months
Disease Control Rate (DCR) as assessed by RECIST version 1.1
Up to 24 months
Progression Free Survival (PFS) as assessed by RECIST version 1.1
Up to 24 months
Evaluation of CA-125 response by Gynecologic Cancer InterGroup (GCIG) criteria
Up to 24 months
Plasma level of Sovilnesib
Up to 24 months
Study Arms (4)
Dose Level 1
EXPERIMENTALSubjects will receive sovilnesib once daily at Dose Level 1 in 28-day cycles.
Dose Level 2
EXPERIMENTALSubjects will receive sovilnesib once daily at Dose Level 2 in 28-day cycles.
Dose Level 3
EXPERIMENTALSubjects will receive sovilnesib once daily at Dose Level 3 in 28-day cycles.
Dose Level 4
EXPERIMENTALSubjects will receive sovilnesib once daily at Dose Level 4 in 28-day cycles.
Interventions
Sovilnesib tablets will be given orally.
Eligibility Criteria
You may qualify if:
- 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
- High Grade Serous Ovarian Cancer, Fallopian Tube or Primary Peritoneal Cancer - histologically or cytologically confirmed; metastatic or unresectable; platinum resistant (defined as recurrence within 6 months of platinum containing therapy) or platinum refractory; prior bevacizumab treatment, or ineligible or intolerant to bevacizumab, or did not receive bevacizumab based on Investigator judgement; if germline and/or somatic BRCA1/2 mutation, previously treated with PARP-inhibitor or ineligible or intolerant.
You may not qualify if:
- MSI-H, dMMR, POLE gene hotspot mutated, or known hypermutator phenotype
- Endometrioid, clear cell, mucinous, sarcomatoid, low-grade/borderline ovarian tumor or mixed tumors containing any of the above histologies
- Previously received KIF18A inhibitor
- Current CNS metastases or leptomeningeal disease
- Cardiac parameters: MI or stroke ≤ 6 months, unstable angina/PE/DVT/CABG ≤ 6 months, NYHA Class ≥ II, LVEF \< 50%
- Any gastrointestinal condition (e.g. malabsorption syndrome, surgical anastomosis, short bowel syndrome) that might affect the absorption of oral medications including the study drug
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (13)
The University of Alabama at Birmingham
Birmingham, Alabama, 35294, United States
University of Arkansas for Medical Sciences
Little Rock, Arkansas, 72205, United States
UCLA
Los Angeles, California, 90095, United States
Hoag Memorial Hospital
Newport Beach, California, 92663, United States
Georgia Cancer Center Augusta University
Atlanta, Georgia, 30912, United States
Johns Hopkins Hospital
Baltimore, Maryland, 21287, United States
Dana Farber Cancer Institute
Boston, Massachusetts, 02215, United States
Corewell Health
Grand Rapids, Michigan, 49503, United States
Roswell Park Comprehensive Cancer Center
Buffalo, New York, 14263, United States
Icahn School of Medicine at Mount Sinai
New York, New York, 10128, United States
OU Health Stephenson Cancer Center
Oklahoma City, Oklahoma, 73117, United States
MUSC Hollings Cancer Center
Charleston, South Carolina, 29020, United States
Fred Hutchinson Cancer Center
Seattle, Washington, 98109, United States
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Design
- Study Type
- interventional
- Phase
- phase 1
- Allocation
- RANDOMIZED
- Masking
- NONE
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- INDUSTRY
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
October 10, 2023
First Posted
October 16, 2023
Study Start
April 4, 2024
Primary Completion
March 1, 2026
Study Completion
April 1, 2026
Last Updated
October 20, 2025
Record last verified: 2025-10