NCT05730712CompletedPhase 2
Pertuzumab, Trastuzumab, Hyaluronidase-zzxf and Enzalutamide for Treatment of Metastatic Castration-Resistant Prostate Cancer
Phase II Trial of Pertuzumab, Trastuzumab, and Hyaluronidase-zzxf (HP) Plus Enzalutamide for the Treatment of Selected Patients With Metastatic Castration-Resistant Prostate Cancer (TraPPer)
Source: ClinicalTrials.gov · Last updated 9 Jun 2026
Brief summary (registry, in English)
This phase II trial tests how well pertuzumab, trastuzumab, hyaluronidase-zzxf and enzalutamide works in treating patients with castration-resistant prostate cancer that has spread from where it first started to other places in the body (metastatic). Pertuzumab and trastuzumab are monoclonal antibodies and forms of targeted therapy that attach to a receptor protein called human epidermal growth factor receptor-2 (HER2). HER2 is found on some cancer cells. When pertuzumab or trastuzumab attach to HER2, the signals that tell the cells to grow are blocked and the tumor cell may be marked for destruction by the body's immune system. Hyaluronidase is an endoglycosidase. It helps to keep pertuzumab and trastuzumab in the body longer, so that these medications will have a greater effect. Hyaluronidase also allows pertuzumab and trastuzumab to be given by injection under the skin and shortens their administration time compared to pertuzumab or trastuzumab alone. Chemotherapy drugs, such as enzalutamide, work in different ways to stop the growth of cancer cells, either by killing the cells, by stopping them from dividing, or by stopping them from spreading. Giving pertuzumab, trastuzumab, hyaluronidase-zzxf and enzalutamide may kill more cancer cells.
- Status (registry)
- Completed
- Phase (registry)
- Phase 2
- Study type
- Interventional
- Enrollment
- 7 (actual)
- First submitted
- 7 Feb 2023
- Start date
- 8 Mar 2024
- Primary completion date
- 10 Apr 2025
- Lead sponsor
- Mayo Clinic
- Diseases
- Prostate cancer
- NCT number
- NCT05730712
What you commit to
- Study type: Interventional · Phase 2
- Participants enrolled: 7
- From 8 Mar 2024 to the primary completion date, 10 Apr 2025
- 3 sites in 1 country
- Visits and tests: ask the trial team, the registry does not list them
Built from the registry fields of ClinicalTrials.gov. It describes the study, not your situation.
Who cannot take part
Copied verbatim from ClinicalTrials.gov and grouped by topic. Only the trial team decides who can take part.
Prior treatment
- PRE-REGISTRATION: History of myocardial infarction =\< 6 months prior to pre-registration, or congestive heart failure requiring use of ongoing maintenance therapy for life threatening ventricular arrhythmias.
- PRE-REGISTRATION: Failure to recover from acute, reversible effects of prior therapy regardless of interval since last treatment.
- EXCEPTION: Grade 1 peripheral (sensory) neuropathy that has been stable for at least 3 months since completion of prior treatment.
- PRE-REGISTRATION: Immunocompromised patients and patients known to be human immunodeficiency virus (HIV) positive and currently receiving antiretroviral therapy.
- NOTE: Patients known to be HIV positive, but without clinical evidence of an immunocompromised state, are eligible for this trial.
- PRE-REGISTRATION: Receiving any other investigational agent which would be considered as a treatment for the prostate cancer.
- PRE-REGISTRATION: Thromboembolic event =\< 60 days prior to pre-registration.
- REGISTRATION: Failure to recover from any of the following therapies prior to registration:
- Major surgery
- Chemotherapy
- Infection requiring systemic treatment
- REGISTRATION: Co-morbid systemic illnesses or other severe concurrent disease which, in the judgment of the investigator, would make the patient inappropriate for entry into this study or interfere significantly with the proper assessment of safety and toxicity of the prescribed regimens.
- REGISTRATION: Immunocompromised patients and patients known to be HIV positive and currently receiving antiretroviral therapy.
- NOTE: Patients known to be HIV positive, but without clinical evidence of an immunocompromised state, are eligible for this trial.
- REGISTRATION: Currently receiving any other investigational agent which would be considered as a treatment for the primary neoplasm.
- REGISTRATION: Requirement for drugs or substances which can interfere with the actions of the study drugs (enzalutamide or pertuzumab/trastuzumab/hyaluronidase-zzxf). Consult pharmacist for review.
Other illness
- PRE-REGISTRATION: Uncontrolled intercurrent non-cardiac illness including, but not limited to:
- Ongoing or active infection
- Psychiatric illness/social situations
- Dyspnea at rest due to complications of advanced malignancy or other disease that requires continuous oxygen therapy
- Any other conditions that would limit compliance with study requirements
- PRE-REGISTRATION: Serious cardiac illness or medical conditions including, but not confined to, the following:
- History of NCI CTCAE v5.0 Grade \>= 3 symptomatic congestive heart failure (CHF) or New York Heart Association (NYHA) Class \>= II
- High-risk uncontrolled arrhythmias (i.e., atrial tachycardia with a heart rate \>= 100/min at rest, significant ventricular arrhythmia \[ventricular tachycardia\], or higher-grade atrioventricular \[AV\]-block, such as second-degree AVblock Type 2 \[Mobitz II\] or third-degree AV-block)
- Serious cardiac arrhythmia or severe conduction abnormality not controlled by adequate medication
- Angina pectoris requiring anti-angina medication
- Clinically significant valvular heart disease
- Evidence of transmural infarction on electrocardiogram (ECG)
- Poorly controlled hypertension (e.g., systolic \> 180 mm Hg or diastolic \> 100mmHg)
- PRE-REGISTRATION: Serious cardiac arrhythmia or severe conduction abnormality not controlled by adequate medication.
- PRE-REGISTRATION: Angina pectoris requiring anti-angina medication.
- PRE-REGISTRATION: Clinically significant valvular heart disease.
- PRE-REGISTRATION: Poorly controlled hypertension (e.g., systolic \> 180 mm Hg or diastolic \> 100mmHg).
- REGISTRATION: Uncontrolled intercurrent illness including, but not limited to:
- Ongoing or active infection
- Symptomatic congestive heart failure
- Unstable angina pectoris
- Cardiac arrhythmia
- Or psychiatric illness/social situations that would limit compliance with study requirements.
- REGISTRATION: History of myocardial infarction =\< 6 months, or congestive heart failure requiring use of ongoing maintenance therapy for life-threatening ventricular arrhythmias.
- REGISTRATION: Known hypersensitivity to pertuzumab, or trastuzumab, or hyaluronidase, or to any of its excipients.
Lab values
- PRE-REGISTRATION: History of ventricular dysrhythmias or risk factors for ventricular dysrhythmias, such as structural heart disease (e.g., severe left ventricular systolic dysfunction \[LVSD\], left ventricular hypertrophy), coronary heart disease (symptomatic or with ischemia demonstrated by diagnostic testing), clinically significant electrolyte abnormalities (e.g., hypokalemia, hypomagnesemia, hypocalcemia), or family history of sudden unexplained death or long QT syndrome.
Age
- REGISTRATION: Other active malignancy =\< 3 years prior to registration. EXCEPTIONS: Non-melanotic skin cancer or carcinoma-in-situ of the cervix. NOTE: If there is a history of prior malignancy, they must not be receiving other specific treatment (e.g., other hormonal therapy, chemotherapy) for their cancer.
Other
- PRE-REGISTRATION: Evidence of transmural infarction on electrocardiogram (ECG).
- REGISTRATION: Any of the following because this study involves an agent that has known genotoxic, mutagenic, and teratogenic effects:
- Pregnant persons
- Nursing persons
- Persons of childbearing potential or able to father a child who are unwilling to employ adequate contraception
Who the study is looking for
- PRE-REGISTRATION: Age \>= 18 years.
- PRE-REGISTRATION: Clinically or histologically confirmed diagnosis of second-generation antiandrogen-refractory metastatic castration-resistant prostate cancer.
- PRE-REGISTRATION: Measurable disease as defined by the Prostate Cancer Working Group (PCWG3) criteria.
- PRE-REGISTRATION: Prior treatment required:
- Second generation anti-androgen (2GAA) therapy (e.g., enzalutamide, abiraterone) at any time prior registration.
- PRE-REGISTRATION: Provide written informed consent.
- PRE-REGISTRATION: Willing to return to enrolling institution for follow-up (during the Active Monitoring Phase of the study).
- PRE-REGISTRATION: Ability to complete questionnaire(s) by themselves or with assistance.
- PRE-REGISTRATION: Willingness to provide mandatory blood specimens for correlative research.
- PRE-REGISTRATION: Willingness to provide mandatory tissue specimens for correlative research.
- REGISTRATION: Plasma NRG-1 level \>= 4 ng/ml
- REGISTRATION: Eastern Cooperative Oncology Group (ECOG) Performance Status (PS) 0, 1 or 2.
- REGISTRATION: Hemoglobin \>= 9.0 g/dL
- REGISTRATION: Absolute neutrophil count (ANC) \>= 1500/mm\^3
- REGISTRATION: Platelet count \>= 100,000/mm\^3
- REGISTRATION: Total bilirubin =\< 1.5 x upper limit of normal (ULN)
- REGISTRATION: Alanine aminotransferase (ALT) and aspartate transaminase (AST) =\< 3 x ULN (=\< 5 x ULN for patients with liver involvement).
- REGISTRATION: PT/INR/aPTT =\<1.5 x ULN OR if patient is receiving anticoagulant therapy and INR or aPTT is within target range of therapy.
- REGISTRATION: Calculated creatinine clearance \>= 45 ml/min using the Cockcroft-Gault formula.
- REGISTRATION: Left ventricular ejection fraction (LVEF) \>= 50% =\< 15 days prior to registration.
- REGISTRATION: Provide written informed consent.
- REGISTRATION: Ability to complete questionnaire(s) by themselves or with assistance.
- REGISTRATION: Willingness to provide mandatory blood specimens for correlative research.
- REGISTRATION: Willingness to provide mandatory tissue specimens for correlative research.
- REGISTRATION: Willing to return to enrolling institution for follow-up (during the Active Monitoring Phase of the study).
Age in the registry: 18 years to - · Sex: Male · Does not accept healthy volunteers
Sites (3)
Sites in registry order. Pick your city on the disease page to sort them by distance.
| Site | City | Country | Site status |
|---|---|---|---|
| Mayo Clinic in Florida Coordinator of this site? Confirm its status | Jacksonville | United States | Unknown status |
| Mayo Clinic in Rochester Coordinator of this site? Confirm its status | Rochester | United States | Unknown status |
| Mayo Clinic in Arizona Coordinator of this site? Confirm its status | Scottsdale | United States | Unknown status |
This page is information, not medical advice. Discuss any trial with your doctor.