STX-478 for Healthy Subjects

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Overseen ByThere may be multiple sites in this clinical trial. 1-877-CTLILLY (1-877-285-4559) or
Age: 18 - 65
Sex: Male
Trial Phase: Phase 1
Sponsor: Eli Lilly and Company
No Placebo GroupAll trial participants will receive the active study treatment (no placebo)

What You Need to Know Before You Apply

What is the purpose of this trial?

This trial aims to understand how the body processes and eliminates a new drug called STX-478 in healthy individuals. Researchers will track the drug's movement through the bloodstream and its exit from the body using a small amount of a radioactive tracer. The study will also assess the drug's safety and tolerability for participants. Ideal candidates are healthy non-smokers with a body mass index (BMI) between 18 and 32, who have not used nicotine for at least six months. As a Phase 1 trial, participants will be among the first to receive this new treatment, aiding researchers in understanding its effects in people.

Will I have to stop taking my current medications?

Yes, you will need to stop taking any prescription or non-prescription drugs, herbal remedies, or vitamin supplements at least 28 days before joining the trial, except for acetaminophen at a dose of 1 gram per day or less.

Is there any evidence suggesting that STX-478 is likely to be safe for humans?

Research has shown that STX-478 is generally safe. Previous studies found that most side effects were mild to moderate, indicating they weren't too serious. Importantly, no participants discontinued the treatment due to these side effects. Additionally, STX-478 appears to cause fewer metabolic problems compared to similar treatments, suggesting it might be easier for the body to handle. Overall, early findings suggest that STX-478 is well-tolerated.12345

Why do researchers think this study treatment might be promising?

STX-478 is unique because it incorporates a radiolabeled component, [14C], which allows researchers to track how the drug is absorbed, distributed, metabolized, and excreted in the body. Unlike standard treatments that primarily focus on symptomatic relief or targeting a specific pathway, STX-478 offers insights into the drug's behavior in the body, potentially leading to more targeted and efficient treatments. Researchers are excited about this because understanding the pharmacokinetics of STX-478 could pave the way for developing novel therapies with optimized dosing and reduced side effects.

What evidence suggests that STX-478 is safe and tolerable in healthy subjects?

Research has shown that STX-478, a new cancer treatment, holds promise for certain cancers. Early studies indicate it targets specific cellular changes that lead to solid tumors. These changes occur in a part of the cell often linked to cancer growth. Initial clinical results suggest that STX-478 is effective against various solid tumors when used alone. This targeted approach may reduce side effects compared to older treatments.45678

Who Is on the Research Team?

C1

Call 1-877-CTLILLY (1-877-285-4559) or 1-317-615-4559 Mon - Fri 9 AM - 5 PM Eastern time (UTC/GMT - 5 hours, EST)

Principal Investigator

Eli Lilly and Company

Are You a Good Fit for This Trial?

This trial is for healthy male participants with a BMI between 18.0 and 32.0 kg/m2, weighing between 55.0 and 100.0 kg, who are non-smokers (including no nicotine use within the last six months). They must test negative for hepatitis B, C, and HIV.

Inclusion Criteria

My BMI is between 18.0 and 32.0.
I have tested negative for hepatitis B, C, and HIV.
My weight is between 55 and 100 kg.
See 1 more

Timeline for a Trial Participant

Screening

Participants are screened for eligibility to participate in the trial

1-2 weeks

Treatment

Participants receive a single dose of 14C radiolabeled STX-478 to study absorption, distribution, metabolism, and excretion

1 day
1 visit (in-person)

Follow-up

Participants are monitored for safety and tolerability, and to measure how the body handles and eliminates STX-478

2-4 weeks

What Are the Treatments Tested in This Trial?

Interventions

  • [14C]-STX-478
Trial Overview [14C]-STX-478 is being tested to see how it's processed in the body after a single dose with a radioactive tracer called C14. The study will track how much of the drug and its byproducts end up in blood, urine, feces, and expired air.
How Is the Trial Designed?
1Treatment groups
Experimental Treatment
Group I: [14C]-STX-478Experimental Treatment1 Intervention

Find a Clinic Near You

Who Is Running the Clinical Trial?

Eli Lilly and Company

Lead Sponsor

Trials
2,708
Recruited
3,720,000+
Dr. Daniel Skovronsky profile image

Dr. Daniel Skovronsky

Eli Lilly and Company

Chief Medical Officer since 2018

MD from Harvard Medical School

David A. Ricks profile image

David A. Ricks

Eli Lilly and Company

Chief Executive Officer since 2017

BSc from Purdue University, MBA from Indiana University

Scorpion Therapeutics, a wholly owned subsidiary of Eli Lilly and Company

Lead Sponsor

Citations

STX-478, a Mutant-Selective, Allosteric PI3Kα Inhibitor Spares ...These preclinical data demonstrate that the mutant-selective, allosteric PI3Kα inhibitor STX-478 provides robust efficacy while avoiding the metabolic ...
Novel PI3Kα Inhibitor STX-478 Offers Precise Treatment ...STX-478, a mutation-specific PI3Kα inhibitor targeting kinase and helical domain mutations, could uniquely address several limitations of earlier PI3K ...
Scorpion Therapeutics Presents Initial Clinical Data From ...STX-478 is active in multiple solid tumor types with both PI3Kα kinase and helical domain mutations, achieving a monotherapy overall ...
First-in-Human Study of STX-478 as Monotherapy and ...A multipart, open-label, phase 1/2 study evaluating the safety, tolerability, pharmacokinetics (PK), and preliminary antitumor activity of STX-478.
Targeting PI3K family with small-molecule inhibitors in cancer ...We critically evaluate small molecule inhibitors that target class I PI3K, with a particular focus on their clinical applications in cancer treatment.
A Study of LY4064809 [14C]-STX-478 in Healthy Male ...The main purpose of this study is to conduct blood tests to measure how much STX-478 is in the bloodstream and how the body handles and eliminates it in ...
STK-478 May Be an Effective, Tolerable Treatment ...The next-generation PI3Kα inhibitor STX-478 is associated with reduced metabolic toxicities and a favorable safety profile in PIK3CA-mutant breast and ...
Scorpion Therapeutics' STX-478 Shows Promise in Phase 1/2 ...... STX-478 exhibited a favorable safety profile, with most adverse events being mild to moderate and no discontinuations due to treatment-related adverse ...
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