Samuraciclib for the Treatment of Patients With Resectable, Borderline Resectable, or Locally Advanced Basal Pancreatic Cancer
Phase 1b Window-of-Opportunity Study Evaluating CDK7 Inhibition in Patients With Localized Basal Pancreatic Cancer
3 other identifiers
interventional
15
1 country
1
Brief Summary
The purpose of this study is to evaluate the safety and efficacy of samuraciclib in patients with localized pancreatic cancer.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at below P25 for phase_1
Started Jul 2026
1 active site
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
June 5, 2026
CompletedFirst Posted
Study publicly available on registry
June 12, 2026
CompletedStudy Start
First participant enrolled
July 1, 2026
ExpectedPrimary Completion
Last participant's last visit for primary outcome
July 14, 2027
Study Completion
Last participant's last visit for all outcomes
November 1, 2027
June 12, 2026
June 1, 2026
1 year
June 5, 2026
June 8, 2026
Conditions
Outcome Measures
Primary Outcomes (1)
Change in ribonucleic acid polymerase II serine levels
Will be assessed by pharmacodynamic changes in primary tumor cells. Pre and post measurements will be compared using a paired t-test at the 2-sided 5% level. Data will be transformed as necessary (e.g. using log-transformation).
Within 72 hours post versus pre-samuraciclib treatment
Secondary Outcomes (6)
Incidence of samuraciclib-related adverse events
Within 30 days of the last dose of samuraciclib
Completion of 14 days of study drug (Feasibility)
Up to 90 days
Completion of the on-protocol research endoscopic ultrasound/fine needle biopsy (Feasibility)
Up to 90 days
Adequate biopsy (≥ 3 cores with ≥30% tumor cellularity) (Feasibility)
Up to 90 days
Time (days) from last dose of study drug to first definitive therapy (surgery or cycle 1 day 1 of neoadjuvant chemotherapy)
Up to 90 days
- +1 more secondary outcomes
Study Arms (1)
Treatment (Samuraciclib)
EXPERIMENTALPatients receive samuraciclib PO QD for 14 days on study. Treatment continues in the absence of disease progression or unacceptable toxicity. Patients will have a research EUS/FNB on study. Patients also undergo CT scans during screening and blood sample collection on study.
Interventions
Given PO
Undergo CT
Undergo blood sample collection
Eligibility Criteria
You may qualify if:
- Histologically or cytologically proven basal pancreatic adenocarcinoma. Histologies other than adenocarcinoma, or any mixed histologies, will NOT be eligible.
- Basal tumors are defined as GATA6- and HMGA2+. Tumor cores are considered positive for GATA6 or HMGA2 if greater than 10% of tumor epithelial cells had positive nuclei
- Resectable, borderline resectable, or locally advanced pancreatic ductal adenocarcinoma (PDA) at diagnosis based on contrast-enhanced CT or magnetic resonance imaging (MRI) (CT or MRI without contrast as part of positron emission tomography (PET)/CT or PET/MRI is NOT acceptable; CT or MRI with contrast as part PET/CT or PET/MRI is acceptable) of the chest, abdomen, and pelvis. The institutional radiologist must review the scans. Resectable, borderline resectable, and locally advanced will be defined by National Comprehensive Cancer Network (NCCN) guidelines version 2.2025.
- There must be no evidence of metastatic disease
- Must be 18 years or older
- Ability to understand and willingness to sign a written informed consent document
- Archival biopsy specimen collected within 3 months must be available. If not available, a diagnostic EUS/FNB will be performed during screening
- Eastern Cooperative Oncology Group (ECOG) performance status 0-1
- Absolute neutrophil count (ANC) ≥ 1,500/mcL (within 14 days prior to study drug)
- Platelets ≥ 100,000/mcL (within 14 days prior to study drug)
- Hemoglobin ≥ 9 g/dL (within 14 days prior to study drug)
- Serum creatinine ≥ 1.5X upper limit of normal (ULN) or serum creatinine clearance ≥ 50 ml/min by Cockcroft-Gault (within 14 days prior to study drug)
- Aspartate aminotransferase (AST) and alanine aminotransferase (ALT) both ≤ 2.5X ULN (within 14 days prior to study drug)
- Total bilirubin ≤ 1.5X ULN (within 14 days prior to study drug)
- Participants must not be pregnant or nursing. Women of childbearing potential (WOCBP) must have a negative urine pregnancy test within 72 hours of treatment initiation, where WOCBP are defined as all female participants between 18 - 55 years of age. Participants of child-bearing potential must be willing to employ two highly effective and acceptable forms of contraception for up to 6 months after the final administered dose of investigational agent. A woman is considered to be of reproductive potential if she has had menses at any time in the preceding 12 consecutive months
- +1 more criteria
You may not qualify if:
- Prior radiation
- Unable to tolerate oral medication, per assessment of the principal investigator (PI)
- Participants who are receiving other investigational agents
- Concomitant mediation use should only exclude patients from trial participation when clinically relevant known or predicted drug-drug interactions or potential overlapping toxicities will impact safety or efficacy
- Uncontrolled or concurrent illness including, but not limited to, ongoing or active infection, symptomatic congestive heart failure, unstable angina pectoris, cardiac arrhythmia, or psychiatric illness/social situations that would limit compliance with study requirements
- Refractory nausea and vomiting, chronic gastrointestinal diseases or previous significant bowel resection with clinically significant sequelae that precluded adequate absorption of samuraciclib
- Uncontrolled seizures
- Active infection
- Active bleeding diatheses
- Known active hepatitis B or hepatitis C infection
- Breastfeeding or pregnancy
- Receipt of systemic corticosteroids within 14 days before the first dose of study medication
- Receipt of St. John's Wort within 21 days before the first dose of study medication or of another concomitant medication, herbal supplement, or food that was a strong inhibitor or inducer of CYP3A4, CYP2C19, CYP2D6, or P-glycoprotein activity within 21 days before the first dose of samuraciclib
- Known hypersensitivity to samuraciclib or any excipient of the product
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- University of Washingtonlead
- Lopker Family Foundationcollaborator
- Carrick Therapeutics Limitedcollaborator
- The V Foundation for Cancer Researchcollaborator
Study Sites (1)
Fred Hutch/University of Washington Cancer Consortium
Seattle, Washington, 98109, United States
MeSH Terms
Interventions
Intervention Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Rachael Safyan, MD
Fred Hutch/University of Washington Cancer Consortium
Central Study Contacts
Study Design
- Study Type
- interventional
- Phase
- phase 1
- Allocation
- NA
- Masking
- NONE
- Purpose
- TREATMENT
- Intervention Model
- SINGLE GROUP
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
June 5, 2026
First Posted
June 12, 2026
Study Start (Estimated)
July 1, 2026
Primary Completion (Estimated)
July 14, 2027
Study Completion (Estimated)
November 1, 2027
Last Updated
June 12, 2026
Record last verified: 2026-06
Data Sharing
- IPD Sharing
- Will not share