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Study of APR-1051 in Patients With Advanced Solid Tumors

A Phase 1, Open-Label, Multicenter, First-In-Human Study to Evaluate the Safety, Tolerability, Pharmacokinetics, and Preliminary Efficacy of APR-1051 in Patients With Advanced Solid Tumors

Status
Recruiting
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06260514
Acronym
ACESOT-1051
Enrollment
90
Registered
2024-02-15
Start date
2024-06-13
Completion date
2028-06-01
Last updated
2026-08-17

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Advanced Solid Tumor

Brief summary

The purpose of this study is to assess the safety and effectiveness of APR-1051 through the performance of a Phase 1, open-label, safety, PK, and preliminary efficacy study of oral APR-1051 in patients with advanced solid tumors.

Interventions

DRUGAPR-1051

WEE1 Inhibitor

Sponsors

Aprea Therapeutics
Lead SponsorINDUSTRY

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Age ≥ 18 years * Diagnosis of advanced/metastatic solid tumor * Measurable or evaluable disease per RECIST version 1.1 (radiographic disease progression per PCWG3 criteria for patients with mCRPC) * Eastern Cooperative Oncology Group (ECOG) performance status ≤ 1 or Karnofsky Performance Status (KPS) ≥ 70% * Patients must have recovered to Grade 1 or baseline levels from toxicity or adverse events related to prior treatment for their cancer, excluding Grade ≤ 2 neuropathy, alopecia, or skin pigmentation * Adequate bone marrow and organ function * Women of child-bearing potential (WOCBP) or men of child-fathering potential must agree to use adequate contraception prior to study entry

Exclusion criteria

* Patient has had prior systemic anti-cancer therapy (cytotoxic chemotherapy, immunotherapy, targeted therapy) within 3 weeks (6 weeks in cases of mitomycin C, nitrosourea, lomustine) or at least 5 half-lives (whichever is shorter, but no less than 2 weeks) prior to Day 1 * Prior radiation therapy at the target lesion unless there is evidence of disease progression. If patient has had prior radiation therapy for disease progression, see Exclusion Criterion 1 for allowed interval between radiotherapy and Day 1 and recovery of AEs * Treatment with any investigational agent administered within 30 days or 5 half-lives, whichever is shorter, before the first dose of APR-1051 * Major surgery within 21 days prior to Day 1 * Concomitant treatment with other anti-cancer therapy, including chemotherapy, immunotherapy, biological therapy, radiation therapy (except palliative local radiation therapy), or other novel anti-cancer agents. Note: endocrine therapy for breast and prostate cancer is allowed along with agents to treat or prevent skeletal related events (zoledronic acid, pamidronate, denosumab) * Subjects with active (uncontrolled, metastatic) second malignancies or requiring therapy

Design outcomes

Primary

MeasureTime frameDescription
Treatment-related adverse eventsDay 1 to 28, each cycle is 28 days* Part 1 dose escalation: Incidence of adverse Events (AE), serious AEs (SAE), treatment-related AEs, AEs that would qualify as a dose-limiting toxicity (DLT), changes in clinical laboratory values, vital signs, ECG, ECHO * Part 1 dose escalation: Severity of adverse Events (AE), serious AEs (SAE), treatment-related AEs, and changes in clinical laboratory values, vital signs, ECG, ECHO according to National Cancer Institute Common Terminology Criteria for Adverse Events v5.0
Recommended dose of APR-1051Day 1 to 28, each cycle is 28 days•Part 1 dose escalation: Recommended Phase 2 Dose (RP2D) of APR-1051 monotherapy \[Time frame: Day 1 through to start of dose expansion phase\]. The RP2D of will be determined based on review of safety, tolerability, pharmacokinetics/pharmacodynamics, and preliminary efficacy data

Secondary

MeasureTime frameDescription
Pharmacokinetics: Cmax/Cmin of APR-1051Day 1 to 112Plasma concentration of APR-1051: maximum (Cmax), minimum (Cmin)
Pharmacokinetics: Tmax of APR-1051Day 1 to 112Time to peak plasma concentration of APR-1051 (Tmax)
Pharmacokinetics: AUC of APR-1051Day 1 to 112Area under plasma versus time curve (AUC) of APR-1051 max)
Pharmacokinetics: t1/2 of APR-1051Day 1 to 112Half-life of APR-1051 (t1/2)

Countries

United States

Contacts

CONTACTSenior Medical Advisor
info@aprea.com215-948-4119

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Aug 18, 2026