New hope for advanced cancer: APR-1051 enters first human trial
NCT ID NCT06260514
First seen Jun 27, 2026 · Last updated Sep 21, 2026 · Updated 3 times
Summary
This early-stage study tests a new oral drug, APR-1051, in about 90 adults with advanced solid tumors that have not responded to other treatments. The main goals are to check the drug's safety and find the right dose. Researchers will also look for early signs that the drug might shrink tumors or slow cancer growth.
Why investors are watching
Aprea Therapeutics is testing APR-1051, an oral drug, in a first-in-human phase 1 trial for people with advanced solid tumors. The study enrolls 90 participants and measures safety, how the body processes the drug, and early signs of tumor control. For a micro-cap company with few other assets, this readout is the main event: a positive safety and efficacy signal could define the company's future, while a poor result leaves little to fall back on.
If it works: If APR-1051 shows acceptable safety and any sign of tumor shrinkage or disease stabilization, Aprea could attract partnership interest or funding to move the drug into later trials. That outcome would validate the drug's mechanism and give the company a tangible product to build on.
If it fails: Phase 1 trials fail often, and a drug that proves too toxic or shows no activity would likely end APR-1051's development. For a company this small, such a failure could leave it without a lead program and force it to pivot or raise capital under pressure.
AI-written from the trial record. Speculative, and not investment advice.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Phase
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Phase 1
The first testing in people. Mainly checks safety and dose, usually in a small group.
- Participants
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About 90 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Jun 2024
- Expected to finish
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Jun 2028
An estimate. End dates often move.
- Lead sponsor
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A company
The lead sponsor is a pharmaceutical, biotech, or medical-device company.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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18 years and older
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
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
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Genom att skicka in godkänner du våra Användarvillkor
Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The study's own enquiry address
This study publishes an address for enquiries. See it below .
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The places running it
6 sites. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
Contacts and locations
Show contact details
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Genom att skicka in godkänner du våra Användarvillkor
Study contacts
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Contact
Email: •••••@•••••
Locations
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MD Anderson Cancer Center (MDACC)
RECRUITINGHouston, Texas, 77030, United States
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NEXT Oncology -Dallas
RECRUITINGIrving, Texas, 75039, United States
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NEXT Oncology -San Antonio
RECRUITINGSan Antonio, Texas, 78229, United States
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NEXT Oncology -Virginia
RECRUITINGFairfax, Virginia, 22031, United States
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NEXT Oncology- Houston
RECRUITINGHouston, Texas, 77054, United States
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University Hospitals, Cleveland Medical Center
RECRUITINGCleveland, Ohio, 44106, United States
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Other studies related to the condition(s) this trial covers.
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- Can an experimental pill boost cancer immunotherapy? early trial puts HG146 to the test
- New injectable drug tested for safety in Hard-to-Treat solid tumors
- New antibody drug conjugate tested against advanced cancers