Study With [225Ac]Ac-FL-020 in mCRPC Participants

NCT ID: NCT06492122

Last Updated: 2025-11-17

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

RECRUITING

Clinical Phase

PHASE1

Total Enrollment

35 participants

Study Classification

INTERVENTIONAL

Study Start Date

2024-08-30

Study Completion Date

2026-12-31

Brief Summary

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The purpose of this study is to evaluate the safety, therapeutic effect, and pharmacokinetics of \[225Ac\]Ac-FL-020 in participants with metastatic castration-resistant prostate cancer (mCRPC).

Detailed Description

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The aim of this Phase 1, First-in-Human, Open-label Trial is to evaluate the safety, tolerability, pharmacokinetics, and efficacy of \[225Ac\]Ac-FL-020 as a single agent in participants with metastatic Castration-Resistant Prostate Cancer (mCRPC). \[111In\]In-FL-020 serves as a surrogate for 225Ac-FL-020 for dosimetry purposes. The trial is divided into two parts: dose escalation in Part 1 and cohort expansion in Part 2.

Conditions

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Metastatic Castration-resistant Prostate Cancer

Study Design

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Allocation Method

NA

Intervention Model

SINGLE_GROUP

Dose escalation and dose expansion
Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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[225Ac]Ac-FL-020

Treatment with \[225Ac\]Ac-FL-020 administered intravenously. 10 patients will also receive \[111In\]In-FL-020 for dosimetry purposes.

Group Type EXPERIMENTAL

[225Ac]Ac-FL-020

Intervention Type DRUG

\[225Ac\]Ac-FL-020 injected intravenously

Blood samples for PK

Intervention Type DRUG

Following the first injection of \[225Ac\]Ac-FL-020, blood samples after treatment will be collected for PK evaluation.

[111In]In-FL-020

Intervention Type DRUG

A dose of \[111In\]In-FL-020 will be injected prior to the first dose of \[225Ac\]Ac-FL-020 for dosimetry evaluation

Blood and urine samples collection

Intervention Type PROCEDURE

For dosimetry evaluation and urine excretion assessment, blood and urine samples will be collected after the injection of \[111In\]In-FL-020

SPECT/CT images

Intervention Type PROCEDURE

For dosimetry evaluation, SPECT/CTs will be performed following the injection of \[111In\]In-FL-020.

Interventions

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[225Ac]Ac-FL-020

\[225Ac\]Ac-FL-020 injected intravenously

Intervention Type DRUG

Blood samples for PK

Following the first injection of \[225Ac\]Ac-FL-020, blood samples after treatment will be collected for PK evaluation.

Intervention Type DRUG

[111In]In-FL-020

A dose of \[111In\]In-FL-020 will be injected prior to the first dose of \[225Ac\]Ac-FL-020 for dosimetry evaluation

Intervention Type DRUG

Blood and urine samples collection

For dosimetry evaluation and urine excretion assessment, blood and urine samples will be collected after the injection of \[111In\]In-FL-020

Intervention Type PROCEDURE

SPECT/CT images

For dosimetry evaluation, SPECT/CTs will be performed following the injection of \[111In\]In-FL-020.

Intervention Type PROCEDURE

Eligibility Criteria

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Inclusion Criteria

1. Histologically or cytologically confirmed metastatic CRPC.
2. Age ≥ 18 years.
3. Signed informed consent, and able and willing to comply with protocol requirements prior to any study procedures.
4. Patients must have a life expectancy \>3 months.
5. All patients are required to have one or more positive lesions detected by PSMA-PET/CT scan
6. Documented progression of the disease based on the Investigator judgement
7. Eastern Cooperative Oncology Group (ECOG) performance status of 0-1.
8. Have a castrate serum testosterone \< 50 ng/dL or \<1.7 nmol/L. Patients must continue primary androgen deprivation with an LHRH analogue (agonist/antagonist) if they have not undergone bilateral orchiectomy.
9. Have previously been treated with at least one of the following:

1. Androgen receptor signaling inhibitor (such as enzalutamide).
2. CYP 17 inhibitor (such as abiraterone acetate).
10. Patients must have been previously treated with at least 1, but no more than 2 previous taxane regimens. Note: In cases where patients are unwilling to undergo taxane therapy due to concerns regarding its potential toxicity, enrollment of patients previously not treated with taxane might be considered after careful evaluation by the investigator. In such cases, patients will be fully informed about the potential benefits of taxane therapy, including its role in prolonging survival.
11. Adequate organ function as defined by:

1. Absolute neutrophil count (ANC) ≥2 x 10\^9/L (2000/µL),
2. Hemoglobin ≥9.0 g/dL,
3. Platelets ≥90 x 10\^9/L (90 000/µL),
4. Serum albumin \>3g/dL
5. Aspartate aminotransferase (AST) ≤2.5 x ULN; alanine aminotransferase (ALT) ≤2.5 x ULN (AST, ALT ≤5 x ULN if liver metastases are present),
6. Serum total bilirubin ≤1.5 x ULN (≤5 x ULN if liver metastases present)
7. Creatinine clearance ≥60 mL/min calculated using a standard Cockcroft and Gault formula.
8. Q wave to T wave (QT) interval corrected for heart rate (QTc) \<470 ms

Exclusion Criteria

1. Patients with known brain metastases.
2. Grade 3 Cystitis infective and non-infective.
3. Severe acute or chronic medical or psychiatric conditions or laboratory abnormality that may increase the risk associated with the study participation or the study treatment administration or may interfere with the interpretation of study results and, in the judgment of the Investigator, would make the patient inappropriate for enrollment in this study.
4. More than 1 prior treatment with PSMA-targeted radioconjugate.
5. Previous treatment with Actinium-225, Strontium-89, Samarium-153, Rhenium-186, Rhenium-188, or hemi-body irradiation or any other radionuclide therapy except \[177Lu\]Lu-PSMA-617 and Radium-223.
6. Radium-223 within 6 months prior to the first study treatment administration.
7. Prior radioconjugate treatment within 6 weeks prior to first study treatment administration. Adverse events from prior radioconjugate treatment must be resolved or reduced to grade 1 prior to the first study treatment administration.
8. More than 6 administrations of previous radioconjugate treatment.
9. Any systemic anti-cancer therapy (e.g., chemotherapy, immunotherapy or biological therapy \[including monoclonal antibodies\]) within 6 weeks prior to the first study treatment administration. Patients on a stable bisphosphonate or denosumab regimen for 30 days prior to first study treatment administration are eligible.
10. Evidence of superscan in the baseline bone scan.
11. Any investigational agents within 6 weeks prior to the first study treatment administration.
12. Radiotherapy: external beam radiotherapy that encompasses \>30% of bone marrow completed less than 6 weeks or focal radiation completed less than 2 weeks, prior to the first study treatment administration.
13. Major surgery (not including placement of vascular access device or tumor biopsies) within 6 weeks prior to first dose of the study treatment, or no recovery from side effects of such intervention.
14. Symptomatic cord compression, or clinical or radiologic findings indicative of impending cord compression.
15. Known hypersensitivity to the components of the study therapy or its analogs.
16. Enrollment in another interventional clinical study.
17. Any persistent xerostomia or dry eyes from previous treatment
18. Persistent prior AEs \> Grade 1 from prior anti-cancer therapies.
19. Significant cardiac disease, such as recent (within six months prior to first dose of the study treatment) myocardial infarction or acute coronary syndromes (including unstable angina pectoris), congestive heart failure (New York Heart Association class III or IV), uncontrolled hypertension, uncontrolled cardiac arrhythmias, severe aortic stenosis.
20. History of thromboembolic or cerebrovascular events, including transient ischemic attacks, cerebrovascular accidents, deep vein thrombosis, or pulmonary emboli within 6 months prior to first dose of the study treatment.
21. Known active infection requiring therapy, including known active infection with human immunodeficiency virus (HIV), or active infection with hepatitis B virus (HBV), hepatitis C virus (HCV), or SARS-CoV-2
22. Prior history of malignancy other than inclusion diagnosis within three years prior to first dose of the study treatment
23. Known history of myelodysplastic syndrome.
Minimum Eligible Age

18 Years

Eligible Sex

MALE

Accepts Healthy Volunteers

No

Sponsors

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Full-Life Technologies GmbH

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Full-Life Technologies GmbH

Role: STUDY_DIRECTOR

Full-Life Technologies GmbH

Locations

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City of Hope Medical Center

Duarte, California, United States

Site Status RECRUITING

Chao Family Comprehensive Cancer Center

Irvine, California, United States

Site Status RECRUITING

University of Stanford

Stanford, California, United States

Site Status RECRUITING

University of Virginia Cancer Center

Charlottesville, Virginia, United States

Site Status RECRUITING

Princess Alexandra Hospital

Brisbane, , Australia

Site Status RECRUITING

Genesiscare Murdoch

Murdoch, , Australia

Site Status RECRUITING

MacQuarie University Clinical Trial Unit

Sydney, , Australia

Site Status RECRUITING

Ankara Üniversitesi Tıp Fakültesi Cebeci Hastanesi Nükleer Tıp Anabilim Dalı

Ankara, , Turkey (Türkiye)

Site Status RECRUITING

Countries

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United States Australia Turkey (Türkiye)

Central Contacts

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Full-Life Technologies GmbH

Role: CONTACT

+49 6221 648 4000

Facility Contacts

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Jennifer Simpson

Role: primary

Amanda Macaraeg

Role: primary

714-456-8000

David G. Marcellus

Role: primary

Robert Dreicer, Principal Investigator

Role: primary

+1 434-924-1775

Christine P Martin, Clinical Trial Coordinator

Role: backup

Gillian Jagger

Role: primary

Vicki Sproule

Role: primary

Luke Wood, Clinical Trial Coordinator

Role: primary

+61 434 971 076

Özlem Üstündag, Clinical Trial Coordinator

Role: primary

+90 312 508 3879

Other Identifiers

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FL-020-001

Identifier Type: -

Identifier Source: org_study_id

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