54 Participants NeededMy employer runs this trial

GSK5471713 for Prostate Cancer

Recruiting at 5 trial locations
Age: 18+
Sex: Male
Trial Phase: Phase 1 & 2
Sponsor: GlaxoSmithKline
Must be taking: Androgen deprivation therapy
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 explores a new treatment, GSK5471713 (an experimental drug), for individuals with prostate cancer that has spread and become resistant to standard hormone treatments. Researchers aim to determine the drug's safety, its behavior in the body, and its potential benefits for patients. Participants should have prostate cancer that continues to grow despite hormone therapy and at least one type of chemotherapy. Those meeting these criteria might be suitable for the trial. As a Phase 1/Phase 2 trial, this research focuses on understanding how the treatment works in people and measuring its effectiveness in an initial, smaller group of patients.

Is there any evidence suggesting that GSK5471713 is likely to be safe for humans?

Research has shown that GSK5471713 is undergoing testing to determine its safety for people. In one study with nine participants, 66.7% experienced a noticeable decrease in PSA levels, a marker for prostate cancer. This suggests potential effectiveness. So far, no specific information about serious side effects has emerged, which is encouraging. However, as this is an early study, researchers continue to monitor the treatment closely for any safety issues. Participants in early trials may face unknown risks, but the initial safety results are promising.12345

Why do researchers think this study treatment might be promising for prostate cancer?

Unlike the standard treatments for prostate cancer, which typically involve hormone therapy, chemotherapy, or surgery, GSK5471713 offers a new approach by targeting specific molecular pathways involved in cancer growth. Researchers are excited about GSK5471713 because it potentially represents a more precise way to attack cancer cells, minimizing damage to healthy tissues. This innovative mechanism could lead to better outcomes with fewer side effects, making it a promising option for patients with prostate cancer.

What evidence suggests that GSK5471713 might be an effective treatment for prostate cancer?

Research on GSK5471713, the treatment under study in this trial, remains in the early stages, but promising signs have emerged. Initial findings suggest that the treatment may lower PSA levels, which track prostate cancer progression. In some cases, PSA levels dropped by 50% or more. This potential reduction might indicate that the treatment could help slow the cancer's growth. However, further studies are needed to fully understand its effectiveness in treating metastatic castration-resistant prostate cancer (mCRPC).12346

Who Is on the Research Team?

GC

GSK Clinical Trials

Principal Investigator

GlaxoSmithKline

Are You a Good Fit for This Trial?

Inclusion Criteria

My prostate cancer has worsened despite hormone therapy.
I am fully active or restricted in physically strenuous activity but can do light work.
My prostate cancer is confirmed to be adenocarcinoma.
See 1 more

Timeline for a Trial Participant

Screening

Participants are screened for eligibility to participate in the trial

2-4 weeks

Treatment

Participants receive GSK5471713 as a monotherapy, with dose escalation and optimization

45 months

Follow-up

Participants are monitored for safety and effectiveness after treatment

4-8 weeks

What Are the Treatments Tested in This Trial?

Interventions

  • GSK5471713

How Is the Trial Designed?

1

Treatment groups

Experimental Treatment

Group I: Participants receiving GSK5471713Experimental Treatment1 Intervention

Find a Clinic Near You

Who Is Running the Clinical Trial?

GlaxoSmithKline

Lead Sponsor

Trials
4,834
Recruited
8,389,000+
Headquarters
London, UK
Known For
Vaccines & Medicines
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Dame Emma Walmsley profile image

Dame Emma Walmsley

GlaxoSmithKline

Chief Executive Officer since 2017

MA in Classics and Modern Languages from Oxford University

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Dr. Hal Barron

GlaxoSmithKline

Chief Medical Officer since 2018

MD from Harvard Medical School

Citations

First-Time-in-Human Study of GSK5471713 in Adults With ...

PSA50 response is defined as a greater than or equal to (>=)50 percent (%) decline in PSA from Baseline, confirmed at least 3 weeks later. Approximately 45 ...

GSKTrial ID 300164

First-Time-in-Human study of GSK5471713 in adults with mCRPC. Contact us about the trial. GSK study ID. 300164.

First-Time-in-Human Study of GSK5471713 in... | Clinical Trial

This first-time-in-human study will evaluate the safety, tolerability, pharmacokinetics, pharmacodynamics, preliminary clinical...

A Phase 1/2 First-Time-in-Human, Open-label, Multicenter, ...

A Phase 1/2 First-Time-in-Human, Open-label, Multicenter, Dose Escalation and Dose Optimization Study of GSK5471713 in Adult Participants ...

GSK Advances New First-in-Human Prostate Cancer Drug ...

The study of GSK5471713 in metastatic castration‑resistant prostate cancer is in the start‑up phase and remains ongoing in planning, with ...

Newsletter 3/2026

In an analysis of nine participants, 66.7% achieved a PSA50 response, while 33.3% reached the PSA80 threshold. The safety profile remains ...