← Back to Search

Anti-cancer agent

Niclosamide for Prostate Cancer

Phase 1
Waitlist Available
Research Sponsored by Mamta Parikh
Eligibility Criteria Checklist
Specific guidelines that determine who can or cannot participate in a clinical trial
Must have
Be older than 18 years old
Timeline
Screening 3 weeks
Treatment Varies
Follow Up up to 5 years
Awards & highlights
No Placebo-Only Group

Summary

This trial studies the safety and best dose of niclosamide and enzalutamide in patients with castration-resistant prostate cancer. Niclosamide blocks growth signals, and enzalutamide reduces/block androgen. Enzalutamide is a second-generation androgen receptor antagonist approved for treating castration-resistant prostate cancer, showing significant efficacy in clinical trials. The goal is to find an effective treatment for this hard-to-treat cancer.

Eligible Conditions
  • Prostate Cancer

Timeline

Screening ~ 3 weeks
Treatment ~ Varies
Follow Up ~up to 5 years
This trial's timeline: 3 weeks for screening, Varies for treatment, and up to 5 years for reporting.

Treatment Details

Study Objectives

Study objectives can provide a clearer picture of what you can expect from a treatment.
Primary study objectives
Incidence of adverse events of grade 3 or higher assessed by National Cancer Institute Common Terminology Criteria for Adverse Events 4.0
RP2D of niclosamide and enzalutamide
Secondary study objectives
Overall survival
PFS
Rate of PSA response which is defined as >= 50% decrease
+1 more
Other study objectives
Analysis of laboratory correlatives

Side effects data

From 2021 Phase 2 trial • 73 Patients • NCT04399356
21%
Nausea
9%
Skin rash
6%
Vomiting
100%
80%
60%
40%
20%
0%
Study treatment Arm
Control Group
Niclosamide- Experimental Group

Awards & Highlights

No Placebo-Only Group
All patients enrolled in this study will receive some form of active treatment.

Trial Design

1Treatment groups
Experimental Treatment
Group I: Treatment (niclosamide, enzalutamide)Experimental Treatment2 Interventions
Patients receive niclosamide PO BID and enzalutamide PO QD on weeks 1-4. Courses repeat every 4 weeks in the absence of disease progression or unacceptable toxicity.
Treatment
First Studied
Drug Approval Stage
How many patients have taken this drug
Enzalutamide
2014
Completed Phase 4
~3820
Niclosamide
2017
Completed Phase 3
~2280

Find a Location

Who is running the clinical trial?

National Cancer Institute (NCI)NIH
13,924 Previous Clinical Trials
41,017,945 Total Patients Enrolled
516 Trials studying Prostate Cancer
332,960 Patients Enrolled for Prostate Cancer
PandomedxOTHER
Mamta ParikhLead Sponsor
6 Previous Clinical Trials
204 Total Patients Enrolled
~1 spots leftby Nov 2025