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New cocktail aims to knock out prostate cancer spread

NCT ID NCT04267887

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing This study
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 26, 2026 · Last updated Jul 16, 2026 · Updated 3 times

Summary

This phase 2 trial tests whether adding apalutamide, abiraterone, and prednisone after chemotherapy can better control metastatic prostate cancer that still responds to hormone therapy. Seven men with high-risk, untreated disease are receiving this combination. The main goal is to see if prostate-specific antigen (PSA) levels drop to very low levels, indicating a strong response.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

Active substance
apalutamide, abiraterone acetate, prednisone, and androgen deprivation therapy
What this could lead to
If successful, this combination could offer a more effective way to control advanced prostate cancer and delay its progression.
What could go wrong
This is a very small early-phase trial with only 7 participants, so results may not apply broadly. The drugs can cause side effects like fatigue, high blood pressure, and liver issues.

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

Phase 2

Tests whether the treatment actually works, and watches for side effects, in a larger group.

Participants

7 people

The number who actually took part.

Started

May 2020

Expected to finish

Jan 2030

An estimate. End dates often move.

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Ages

18 years and older

Sex

Male participants only

Healthy volunteers

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

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * Patients must have histologically or cytologically confirmed prostate cancer OR a strong suspicion of prostate cancer as evidenced by metastatic disease in a pattern consistent with prostate cancer (such as blastic lesions on a nuclear medicine bone scan or lymphadenopathy on the computed tomography \[CT\] scan) AND a PSA \> 50 ng/mL * Patients must meet either of the definitions for high risk disease as follows: * Definition 1: Must have at least 2 of the following 3 at the time diagnosed metastatic: * visceral metastatic disease * \>=3 bone lesions * Gleason 8-10 OR * Definition 2: \>=4 bone lesions, including \>=1 outside of the vertebral column or pelvis and/or visceral metastatic disease * If a patient has received androgen deprivation therapy (ADT) for neoadjuvant or adjuvant therapy at least 24 months MUST have elapsed since its use to day 1 of restarting ADT for metastatic castration sensitive disease * ADT sensitive disease- no evidence of PSA progression or new metastatic deposits since starting ADT; PSA progression is defined as an increase in PSA greater than 25% above nadir, and \>2 ng/ml increase confirmed by a second value obtained at least 2 weeks apart * Have completed up to 6 cycles of docetaxel since developing metastatic castration sensitive disease with no more than 16 weeks elapsed since day 21 of the final cycle * All races and ethnic groups will be included * Life expectancy of greater than 18 months * Eastern Cooperative Oncology Group (ECOG) performance status =\< 2 * Hemoglobin \> 9.0 g/dL, independent of transfusion and/or growth factors * Leukocytes \> 3,000/uL * Absolute neutrophil count \> 1,500/uL * Platelets \>= 100,000 x 10\^9/uL, independent of transfusion and/or growth factors * Total bilirubin =\< 1.5 x upper limit of normal (ULN) (Note: In subjects with Gilbert's syndrome, if total bilirubin is \> 1.5 x ULN, measure direct and indirect bilirubin and if direct bilirubin is =\< 1.5 x ULN, subject may be eligible) * Aspartate aminotransferase (AST)(serum glutamic oxaloacetic transaminase \[SGOT\])/alanine aminotransferase (ALT)(serum glutamic pyruvic transaminase \[SGPT\]) \< 2.5 x institutional upper limit of normal * Albumin \> 3 g/dL * Estimated glomerular filtration rate (eGFR) \> 30 mL/min/1.73 m\^2; per Modification of Diet in Renal Disease (MDRD) calculation or institutional standard * Potassium \>= 3.5 mmol/L * Medications known to lower the seizure threshold must be discontinued or substituted at least 4 weeks prior to day 1 of study * Agrees to use a condom (even men with vasectomies) and another effective method of birth control if he is having sex with a woman of childbearing potential or agrees to use a condom if he is having sex with a woman who is pregnant while on study drug and for 3 months following the last dose of study drug. Must also agree not to donate sperm during the study and for 3 months after receiving the last dose of study drug * Ability to understand, and the willingness to sign, a written informed consent document, as well as comply with study requirements Exclusion Criteria: * Subjects who are unwilling to stop taking saw palmetto, PC-SPECs or other herbal agents known to affect the PSA * Patients may not have received any other investigational agents within 30 days prior to day 1 of study * Prior exposure to apalutamide, enzalutamide, abiraterone acetate, darolutamide, or any other second-generation antiandrogen therapy * Note: prior exposure to bicalutamide, flutamide, nilutamide, or any other first-generation androgen receptor antagonist is permitted. No washout is required. Subjects may be on one of these at the time of consent, but it must be stopped prior to day 1 of study treatment. These drugs are frequently used in the newly diagnosed metastatic setting to blunt the effect of the testosterone spike * History of allergic reactions attributed to compounds of similar chemical or biologic composition to apalutamide or other agents used in the study * Subject has another active malignancy other than non-melanomatous skin cancer (unless it is metastatic) or superficial bladder cancer * Either of the following: * Seizure or known condition that may pre-dispose to seizure (e.g. prior stroke within 1 year, brain arteriovenous malformation, Schwannoma, meningioma, or other benign central nervous system \[CNS\] or meningeal disease which may require treatment with surgery or radiation therapy) * Severe or unstable angina, myocardial infarction, symptomatic congestive heart failure or left ventricular ejection fraction \< 50%, arterial or venous thromboembolic events (e.g. pulmonary embolism, cerebrovascular accident including transient ischemic attacks), or clinically significant ventricular arrhythmias within 6 months prior to day 1 of study * Current evidence of any of the following: * Uncontrolled hypertension * Gastrointestinal disorder affecting absorption * Active infection (e.g. human immunodeficiency virus \[HIV\] or viral hepatitis) * Any chronic medical condition requiring a higher dose of corticosteroid than a total of 10 mg prednisone/prednisolone daily * Any condition that in the opinion of the investigator, would preclude participation in this study. * Avoid concomitant strong CYP3A4 inducers during abiraterone acetate treatment. If a strong CYP3A4 inducer must be co-administered, increase the abiraterone acetate dosing frequency to twice a day only during the co-administration period (e.g., from 1,000 mg once daily to 1,000 mg twice a day). * Avoid co-administration of abiraterone acetate with CYP2D6 substrates that have a narrow therapeutic index. If an alternative treatment cannot be used, exercise caution and consider a dose reduction of the concomitant CYP2D6 substrate * Baseline moderate and severe hepatic impairment (Child Pugh Class B \& C) * Inability to stop a prohibited medication: * Atypical antipsychotics (e.g. clozapine, olanzapine, risperidone, ziprasidone) * Bupropion * Lithium * Meperidine and pethidine * Phenothiazine antipsychotics (e.g. chlorpromazine, mesoridazine, thioridazine) * Tricyclic antidepressants (e.g. amitriptyline, desipramine, doxepin, imipramine, maprotiline, mirtazapine * Tramadol

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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

  • OHSU Knight Cancer Institute

    Portland, Oregon, 97239, United States

More trials for these conditions

Other studies related to the condition(s) this trial covers.