About this trial
The goal of this clinical trial is to find out if FX-111 is safe enough to permit further studies in adult male participants with metastatic castration-resistant prostate cancer (mCRPC). It will also study the drug's pharmacokinetics (how the body breaks down FX-111) and how well FX-111 treats mCRPC. The main questions it aims to answer are:
What are the side effects of FX-111?
Does FX-111 work to reduce or prevent progression of mCRPC?
The study doctor will oversee participants' treatment with FX-111 and ask about any side effects. Participants will take FX-111 every day by mouth and will have regular physical and laboratory examinations to check health and tumor status.
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
Confirmed adenocarcinoma of the prostate.
PSA levels ≥ 2 ng/mL at screening visit.
Progressing PSA, defined as two consecutive increases in the most recent PSA measurements taken at least 1 week apart.
Progressed on Androgen Deprivation Therapy (ADT) and at least one prior potent Androgen Receptor (AR) pathway inhibitor given in castration-sensitive prostate cancer setting or approved for castration-resistant prostate cancer (eg, apalutamide, darolutamide, abiraterone, enzalutamide).
Disqualifiers
Predominance of small cell carcinoma of the prostate/neuroendocrine prostate cancer in most recent tumor biopsy.
Participants with brain metastases that require ongoing treatment with radiation or high-dose steroids.
Not recovered from side effects of prior surgery or cancer treatments.
Evidence of active viral, bacterial, or fungal infection requiring treatment with antivirals, antibiotics, or anti-fungal medications.
Trial design
Sequential
Treatments tested in this trial
FX-111
DrugFX-111 will be administered orally once daily in continuous 28-day cycles.
Treatment groups
Trial outcomes
Primary outcomes
The number of adverse events (AEs), serious adverse events (SAEs), and drug withdrawal due to AE in participants receiving FX-111
Secondary outcomes
Area Under the Concentration Time Curve
Total body exposure of FX-111
Maximum concentration (Cmax) of FX-111 in the bloodstream.
Time required (Tmax) to reach Cmax of FX-111 in the bloodstream.
Rate of confirmed prostate-specific antigen (PSA) decline of ≥ 50% from baseline (PSA50).
Sponsors and contacts
Click on the lead sponsor to view all of their trials.