New combo aims to stop prostate cancer relapse after surgery
NCT ID NCT04523207
First seen Jun 26, 2026 · Last updated Jun 27, 2026 · Updated 1 time
Summary
This study tested whether adding apalutamide to standard hormone therapy after prostate removal surgery can keep prostate cancer from coming back in high-risk patients. 108 men who had surgery for non-spread prostate cancer took the drug combo for up to 2 years. Researchers checked if their PSA levels stayed low, which would suggest the cancer hadn't returned.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- apalutamide and androgen deprivation therapy (ADT)
- What this could lead to
- If successful, this combination could help prevent prostate cancer from coming back after surgery in high-risk patients.
- What could go wrong
- This is a small, early-phase study without a comparison group, so results may not apply broadly. Hormone therapy can cause side effects like hot flashes and fatigue.
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 2
Tests whether the treatment actually works, and watches for side effects, in a larger group.
- Participants
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108 people
The number who actually took part.
- Started
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Aug 2020
- Finished
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Oct 2023
- 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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Male participants only
- 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: * A candidate for radical prostatectomy (RP) or status post RP. Eligible to receive study intervention between Day 29 and Day 90 post-RP. Post RP prostate-specific antigen (PSA) of \<= 0.2 nanograms per milliliter (ng/mL). Has not received other treatment for prostate cancer * Have recovered from RP procedure and have had no worsening in cardiac risk in the peri-operative period per the clinical judgement of the investigator * Adequate organ function (hepatic, renal, hematologic and cerebral) determined at the discretion of the treating physician * Eastern Cooperative oncology Group (ECOG) Performance Status Score of 0 or 1 * Histologically confirmed adenocarcinoma of the prostate and categorized as high risk for recurrent prostate cancer. High risk can be defined based on PSA alone or biopsy or RP specimen as follows: PSA greater than or equal to (\>=) 20 ng/ml or; Gleason Score \>= 9 in any core on biopsy or; Gleason Score \>= 8 (4+4 or 5+3) in greater than (\>) 80 percentage (%) of 2 cores on biopsy or; Gleason Score = 8 (4+4 or 5+3) in 1 core as long 5 or more other cores with minimum Gleason Score of 4+3 on biopsy. The determination of high risk may be based on pathology report of biopsy or equivalent criteria from radical prostatectomy Exclusion Criteria: * History or presence of soft tissue/bone metastasis or metastasis in distant lymph nodes (pelvic lymph nodes below the iliac bifurcation that are less than (\<) 2 centimeter (cm) in diameter \[short axis\] either radiographically or pathologically are allowed.) * History of bilateral orchiectomy * Received an investigational intervention \<= 4 weeks before the planned first dose of study intervention * History of seizure or any condition that in the opinion of the investigator may predispose to seizure or treatment with drugs known to lower the seizure threshold within 4 weeks prior to starting treatment with apalutamide * Allergy or hypersensitivity to apalutamide, or excipients, unable or unwilling to take androgen deprivation therapy (ADT)
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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.
Contacts and locations
Locations
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Adult Pediatric Urology & Urogynecology, P.C
Omaha, Nebraska, 68114, United States
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Arizona Urology Specialists
Tucson, Arizona, 85741, United States
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Arizona Urology Specialists 1
Tucson, Arizona, 85704, United States
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Arkansas Urology
Little Rock, Arkansas, 72211, United States
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Associated Medical Professionals
Syracuse, New York, 13210, United States
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Associated Urologists of North Carolina
Raleigh, North Carolina, 27612, United States
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Carolina Urologic Research Center
Myrtle Beach, South Carolina, 29572, United States
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First Urology, PSC
Jeffersonville, Indiana, 47130, United States
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Foothills Urology - Golden Off
Lakewood, Colorado, 80228, United States
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Genesis Research
Torrance, California, 90505, United States
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Great Lakes Physician PC d/b/a Western New York Urology Associates
Cheektowaga, New York, 14225, United States
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Houston Metro Urology
Houston, Texas, 77027, United States
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Idaho Urologic Institute
Meridian, Idaho, 83642, United States
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Lancaster Urology
Lancaster, Pennsylvania, 17604, United States
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Lexington Urology
West Columbia, South Carolina, 20169, United States
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Michigan Institute of Urology, PC
Troy, Michigan, 48084, United States
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MidLantic Urology
Bala-Cynwyd, Pennsylvania, 19004, United States
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New Jersey Urology LLC
Voorhees Township, New Jersey, 08043, United States
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Ochsner LSU Health Shreveport - Regional Urology
Shreveport, Louisiana, 71106, United States
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Oregon Urology Institute
Springfield, Oregon, 97477, United States
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Skyline Urology
Sherman Oaks, California, 91411, United States
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Spokane Urology
Spokane, Washington, 99202, United States
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The Iowa Clinic
West Des Moines, Iowa, 50266, United States
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The Urology Center of Colorado
Denver, Colorado, 80211, United States
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The Urology Group
Cincinnati, Ohio, 45212, United States
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Urological Research Network
Hialeah, Florida, 33016, United States
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Urology Associates
Nashville, Tennessee, 37209, United States
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Urology Austin
Austin, Texas, 78745, United States
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Urology Of Virginia, Pllc
Virginia Beach, Virginia, 23462, United States
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Urology San Antonio Research
San Antonio, Texas, 78229, United States
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Virginia Urology
Richmond, Virginia, 23235, United States
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Wichita Urology Group
Wichita, Kansas, 67226, United States
More trials for these conditions
Other studies related to the condition(s) this trial covers.
- New pill aims to outsmart resistant prostate cancer
- New PET tracer targets ACP3 to spot prostate cancer
- Can MRI spot which prostate cancers are safe to watch?
- Robotic surgery vs standard approaches: does the platform change cancer outcomes?
- Radiation boost may extend Drug-Free time in prostate cancer recurrence
- Can a smart drug deliver a toxic payload to prostate cancer cells?