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177Lu radiomerket monoklonalt antistoff HuJ591 (177Lu-J591) og ketokonazol hos pasienter med prostatakreft

21. oktober 2026 oppdatert av: Weill Medical College of Cornell University

En randomisert fase 2-studie av 177Lu radiomerket monoklonalt antistoff HuJ591 (177Lu-J591) og ketokonazol hos pasienter med høyrisikokastrat biokjemisk residiverende prostatakreft etter lokal terapi

The purpose of this study is to test the effectiveness of the experimental drug, 177Lu-J591 in combination with ketoconazole and hydrocortisone against prostate cancer.

Studieoversikt

Status

Aktiv, ikke rekrutterende

Forhold

Intervensjon / Behandling

Detaljert beskrivelse

This research is being done because the standard treatments for prostate cancer that has returned (PSA is elevated) after surgery and/or radiation and progressed on initial hormonal therapy are not curative. Existing treatments, such as the ketoconazole used as part of this study may decrease PSA temporarily, but unfortunately the cancer continues to grow. This experimental drug is designed to seek out all of the prostate cancer cells and to deliver a lethal dose of radiation to the areas of cancer, but not to normal areas. Some of the normal organs (liver, kidney and bone marrow) do receive some radiation dose that is within the acceptable limits.

The experimental drug in this study includes an antibody (abbreviated: mAb) called "J591". It is a protein molecule which can bind to a specific site on a prostate cancer cell. A very energetic radioactive (an unstable atom) metal called 177Lutetium (abbreviated: 177Lu) is attached to the J591 antibody. The fully assembled drug is called "177Lu-J591". The study will assess the potential of the energy given off by the radioactive compound to kill cancer cell. This study may also involve the use of 111Indium (abbreviated 111In). This is also an energetic radioactive particle, but does not generally give off enough energy to kill cancer cells, but allows researchers to take pictures. This radioactive particle is also attached to the J591 antibody (called 111In-J591) and will serve as a placebo (treatment with no active medicine).

Studietype

Intervensjonell

Registrering (Faktiske)

55

Fase

  • Fase 2

Kontakter og plasseringer

Denne delen inneholder kontaktinformasjon for de som utfører studien, og informasjon om hvor denne studien blir utført.

Studiesteder

  • Forente stater
    • California
      • Los Angeles, California, Forente stater, 90048
        • Cedars Sinai
      • Los Angeles, California, Forente stater, 90089
        • USC/Norris Comprehensive cancer center
    • District of Columbia
      • Washington D.C., District of Columbia, Forente stater, 20007
        • Georgetown University Medical Center
    • Indiana
      • Indianapolis, Indiana, Forente stater, 46202
        • Indiana University Melvin and Bren Simon Cancer Center
    • Iowa
      • Iowa City, Iowa, Forente stater, 52242
        • University of Iowa Hospitals and Clinics
    • Kansas
      • Westwood, Kansas, Forente stater, 66205
        • The University of Kansas Cancer Center
    • Nebraska
      • Omaha, Nebraska, Forente stater, 68130
        • XCancer Omaha
    • New York
      • New York, New York, Forente stater, 10021
        • Weill Cornell Medical College
    • Pennsylvania
      • Pittsburgh, Pennsylvania, Forente stater, 15232
        • UPMC Hillman Cancer Center
    • Utah
      • Salt Lake City, Utah, Forente stater, 84108
        • University of Utah

Deltakelseskriterier

Forskere ser etter personer som passer til en bestemt beskrivelse, kalt kvalifikasjonskriterier. Noen eksempler på disse kriteriene er en persons generelle helsetilstand eller tidligere behandlinger.

Kvalifikasjonskriterier

Alder som er kvalifisert for studier

18 år og eldre (Voksen, Eldre voksen)

Tar imot friske frivillige

Nei

Kjønn som er kvalifisert for studier

Mann

Beskrivelse

Inclusion Criteria:

  • Histologically or cytologically confirmed adenocarcinoma of the prostate previously treated with surgery and/or radiotherapy.

  • Biochemical progression (rising PSA) after medical or surgical castration

  • High risk of systemic progression defined as:

    1. Rising PSA as defined above and either:
    2. Absolute PSA > 20 ng/mL AND/OR
    3. PSA doubling time < 8 months

  • No evidence of local recurrence or distant metastases

  • Age >18 years.

  • Serum testosterone < 50 ng/ml

  • Patients capable of fathering children must agree to use an effective method of contraception for the duration of the trial.

  • Subjects on bisphosphonate therapy must be on a stable dose and must have started therapy > 4 weeks prior to protocol therapy.

  • Ability to understand and the willingness to sign a written informed consent document.

Exclusion Criteria:

  • Use of red blood cell or platelet transfusions within 4 weeks of treatment

  • Use of hematopoietic growth factors within 4 weeks of treatment

  • Prior cytotoxic chemotherapy and/or radiation therapy within 4 weeks of treatment

  • Prior radiation therapy encompassing >25% of skeleton (see Appendix C)

  • Prior treatment with 89Strontium or 153Samarium containing compounds (e.g. Metastron®, Quadramet®)

  • Platelet count <150,000/mm3 or known primary qualitative platelet disorder

  • Absolute neutrophil count (ANC) <2,000/mm3

  • Hematocrit <30 percent and Hemoglobin < 10 g/dL

  • Abnormal coagulation profile (PT or INR, PTT > 1.3x ULN) unless on therapeutic anticoagulation - see concomitant meds section

  • Serum creatinine >2.5 mg/dL

  • AST (SGOT) >2x ULN

  • Bilirubin (total) >1.5x ULN; subjects with Gilbert's syndrome will be allowed if direct bilirubin is within institutional normal limits

  • Active serious infection

  • Active angina pectoris or NY Heart Association Class III-IV

  • ECOG Performance Status > 2

  • Life expectancy <12 months

  • History of deep vein thrombosis and/or pulmonary embolus within 1 month of study entry

  • Other serious illness(es) involving the cardiac, respiratory, CNS, renal, hepatic or hematological organ systems which might preclude completion of this study or interfere with determination of causality of any adverse effects experienced in this study

  • Prior investigational therapy (medications or devices) within 4 weeks of treatment. Furthermore, other investigational therapy is not permitted during the treatment phase.

  • Prior use of ketoconazole for the purposes of prostate cancer therapy for greater than 1 month

  • Known history of HIV. The effects of J591 are unknown in this population. Furthermore, ketoconazole has many well-described drug-drug interactions which could affect antiviral therapy. If necessary, this population will be studied separately.

  • Currently active other malignancy other than non-melanoma skin cancer. Patients are considered not to have "currently active" malignancy if they have completed any necessary therapy and are considered by their physician to be at less than 30% risk of relapse.

    - Known history of known myelodysplastic syndrome

  • Adrenal hormone inhibitors (other than ketoconazole) within 4 weeks prior to study enrollment

  • Finasteride (Propecia® or Proscar®) or dutasteride (Avodart®) within 4 weeks of enrollment

  • Patients on corticosteroids prior to enrollment must have either discontinued and shown biochemical progression or have biochemical progression on a stable dose

Studieplan

Denne delen gir detaljer om studieplanen, inkludert hvordan studien er utformet og hva studien måler.

Hvordan er studiet utformet?

Designdetaljer

  • Primært formål: Behandling
  • Tildeling: Randomisert
  • Intervensjonsmodell: Parallell tildeling
  • Masking: Firemannsrom

Våpen og intervensjoner

Deltakergruppe / Arm
Intervensjon / Behandling
Eksperimentell: 1. 177Lu-J591 + Ketoconazole

Ketoconazole 400 mg 3 times a day plus hydrocortisone 20 mg AM, 10 mg PM x 4 weeks followed by 177Lu-J591 Infusion, continue ketoconazole and hydrocortisone
Legemiddel: 177Lu-J591

177Lu-J591 70 mCi/m2 on day 29 (+/- 2 days) of treatment

Andre navn:
  • J591
Legemiddel: Ketoconazole

Ketoconazole at a dose of 400 mg (two 200 mg tabs) to be taken orally (preferably on an empty stomach) three times per day (total daily dose of 1200 mg)

Andre navn:
  • Nizoral
Legemiddel: Hydrocortisone

Hydrocortisone at a dose of 20 mg orally each morning, 10 mg orally each evening (total daily dose of 30 mg)

Andre navn:
  • Cortef
Placebo komparator: 2. 111In-J591 + Ketoconazole

Ketoconazole 400 mg 3 times a day plus hydrocortisone 20 mg AM, 10 mg PM x 4 weeks followed by 111In-J591 (placebo) Infusion, continue ketoconazole and hydrocortisone
Legemiddel: Ketoconazole

Ketoconazole at a dose of 400 mg (two 200 mg tabs) to be taken orally (preferably on an empty stomach) three times per day (total daily dose of 1200 mg)

Andre navn:
  • Nizoral
Legemiddel: Hydrocortisone

Hydrocortisone at a dose of 20 mg orally each morning, 10 mg orally each evening (total daily dose of 30 mg)

Andre navn:
  • Cortef
Legemiddel: 111In-J591

111In-J591 at a dose of 5 mCi on day 29 (+/- 2 days) of treatment

Andre navn:
  • J591

Hva måler studien?

Primære resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
Proportion of Participants Free of Radiographically Evident Metastases From Baseline to 18 Months After Study Drug Administration
Tidsramme: Baseline and 18 months after study drug administration

Subjects will perform a CT and/or MRI scan of the abdomen and pelvis, chest x-ray or CT scan of the chest and bone scan to determine the proportion of participants free of radiographically evident metastases from baseline to 18 months after study drug administration.
Baseline and 18 months after study drug administration

Sekundære resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
Change in PSA Response Rate
Tidsramme: Collected at screening, V2, V3, V5, V9 then every 4 weeks till PSA progression or end of study at approximately 100 months

PSA response will be determined by comparing the PSA levels after therapy to the baseline and pre-treatment PSA via blood specimens
Collected at screening, V2, V3, V5, V9 then every 4 weeks till PSA progression or end of study at approximately 100 months

Samarbeidspartnere og etterforskere

Det er her du vil finne personer og organisasjoner som er involvert i denne studien.

Sponsor

Weill Medical College of Cornell University

Samarbeidspartnere

United States Department of Defense

Etterforskere

  • Hovedetterforsker: Scott T Tagawa, M.D., Weill Medical College of Cornell University

Studierekorddatoer

Disse datoene sporer fremdriften for innsending av studieposter og sammendragsresultater til ClinicalTrials.gov. Studieposter og rapporterte resultater gjennomgås av National Library of Medicine (NLM) for å sikre at de oppfyller spesifikke kvalitetskontrollstandarder før de legges ut på det offentlige nettstedet.

Studer hoveddatoer

Studiestart (Faktiske)

1. juni 2009

Primær fullføring (Faktiske)

10. februar 2022

Studiet fullført (Antatt)

1. juni 2027

Datoer for studieregistrering

Først innsendt

10. mars 2009

Først innsendt som oppfylte QC-kriteriene

10. mars 2009

Først lagt ut (Antatt)

11. mars 2009

Oppdateringer av studieposter

Sist oppdatering lagt ut (Faktiske)

5. november 2026

Siste oppdatering sendt inn som oppfylte QC-kriteriene

21. oktober 2026

Sist bekreftet

1. oktober 2026

Mer informasjon

Begreper knyttet til denne studien

Nøkkelord

Ytterligere relevante MeSH-vilkår

Andre studie-ID-numre

  • 0810010067
  • J591+Ketoconazole (Annen identifikator: Weill Cornell Medicine)

Plan for individuelle deltakerdata (IPD)

Planlegger du å dele individuelle deltakerdata (IPD)?

NEI

Legemiddel- og utstyrsinformasjon, studiedokumenter

Studerer et amerikansk FDA-regulert medikamentprodukt

Ja

Studerer et amerikansk FDA-regulert enhetsprodukt

Nei

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