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Arteriell leverinfusjon av floksuridin, gemcitabinhydroklorid og radioaktivt merket monoklonalt antistoffbehandling ved behandling av levermetastaser hos pasienter med metastatisk tykktarmskreft tidligere behandlet med kirurgi

15. oktober 2026 oppdatert av: City of Hope Medical Center

En fase I/II-studie med radioimmunterapi (Y-90 cT84.66), gemcitabin og hepatisk arteriell infusjon av Fudr for metastatisk kolorektalt karsinom til leveren

RATIONALE: Drugs used in chemotherapy, such as floxuridine and gemcitabine hydrochloride, work in different ways to stop the growth of tumor cells, either by killing the cells or by stopping them from dividing. Hepatic arterial infusion uses a catheter to carry cancer-killing substances directly into the liver. Radiolabeled monoclonal antibodies can find tumor cells and carry tumor-killing substances to them without harming normal cells. Giving hepatic arterial infusion of floxuridine together with gemcitabine hydrochloride and radiolabeled monoclonal antibody therapy after surgery may kill any tumor cells that remain after surgery.

PURPOSE: This phase I/II trial is studying the side effects and best dose of floxuridine when given as a hepatic arterial infusion together with gemcitabine hydrochloride and radiolabeled monoclonal antibody therapy and to see how well it works in treating liver metastases in patients with metastatic colorectal cancer.

Studieoversikt

Detaljert beskrivelse

OBJECTIVES:

I. To determine the maximum tolerated dose (MTD) and associated toxicities of concurrent hepatic arterial infusion (HAI) fluorodeoxypyrimidine (FUdR)/Decadron and intravenous gemcitabine combined with intravenous yttrium-90 (^90Y) chimeric T84.66 (cT84.66) in colorectal cancer patients after hepatic resection or maximum surgical debulking (to < 3 cm) of liver metastases.

II. To study the feasibility and toxicities of such adjuvant therapy following resection and/or ablation of liver metastases.

III. To evaluate the biodistribution, clearance and metabolism of ^90Y and ^111In (indium-iii) chimeric T84.66 administered intravenously.

IV. To estimate radiation doses to whole body, normal organs, and tumor through serial nuclear imaging.

V. To correlate proteomic profiles pre and post-therapy with toxicities and anti-tumor effects.

OUTLINE: This is a phase I, dose-escalation study of floxuridine followed by a phase II study.

Patients receive floxuridine as a continuous hepatic arterial infusion on days 1-14 and gemcitabine hydrochloride IV over 30 minutes on days 9 and 11. Patients also receive yttrium Y 90 anti-CEA monoclonal antibody cT84.66 IV over 25 minutes on day 9. Treatment repeats every 6 weeks for up to 3 courses in the absence of disease progression or unacceptable toxicity.

Patients may receive an additional course of floxuridine in combination with systemic therapy at the discretion of the treating physician.

After completion of study treatment, patients are followed up at 3 and 6 months.

Studietype

Intervensjonell

Registrering (Faktiske)

16

Fase

  • Fase 2
  • Fase 1

Kontakter og plasseringer

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

Studiesteder

    • California
      • Duarte, California, Forente stater, 91010
        • City of Hope

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 til 70 år (Voksen, Eldre voksen)

Tar imot friske frivillige

Nei

Kjønn som er kvalifisert for studier

Alle

Beskrivelse

Inclusion

  • Patients must have a Karnofsky performance status of >= 60%; this must be met pre-surgery and pre-study therapy
  • Patients must have histological confirmation of colorectal carcinoma and present with potentially resectable or abatable metachronous or synchronous hepatic metastases
  • Patients must have colorectal tumors that produce CEA as documented by either immunohistochemistry or by an elevated serum CEA
  • Prior radiotherapy, immunotherapy, or chemotherapy must have been completed at least four weeks prior to start of FUdR/RIT therapy on this study (6 weeks if mitomycin-C or nitrosoureas were part of last therapy) and patients must have recovered from all expected side effects of the prior therapy
  • Laboratory values must be met pre-surgery and pre-study therapy
  • Hemoglobin > 10 gm % (patients may be transfused to reach a hemoglobin > 10 gm %)
  • WBC > 4000/ul
  • Absolute granulocyte count of > 1,500/mm^3
  • Platelets > 150,000/ul
  • Patients may have history of prior malignancy for which the patient has been disease-free for five years with the exception of basal or squamous cell skin cancers or carcinoma in situ of the cervix
  • Patients must have no prior history of radiation therapy to the liver
  • Total bilirubin < 1.5 (unless reversibly obstructed due to the metastatic tumor)
  • Serum creatinine of < 2.0
  • Patients must have evidence of intrahepatic metastases involving < 60% of the functioning liver
  • Patients cannot have evidence of extrahepatic disease with the following exceptions: patients known to have a resectable "anastomotic" or local recurrence of their tumor; patients who undergoing their initial surgery for resection of their primary colorectal carcinoma can have potentially resectable porta hepatis and/or mesenteric lymph node involvement in addition to liver metastases; patients who have disease extension from the liver metastasis that can be resected en bloc (e.g., diaphragm, kidney, and abdominal wall); patients who have minimal, potentially resectable to less than 3 cm extrahepatic disease
  • The pre-operative eligibility checklist must be completed
  • If a patient has previously received murine or chimeric antibody, then serum anti-antibody testing must be negative (This must be met pre-surgery if possible)
  • Serum HIV testing and hepatitis B surface antigen and C antibody testing must be negative
  • Women of childbearing potential must have a negative serum pregnancy test prior to entry and while on study must be practicing an effective form of contraception (This must be met pre-surgery and pre-study therapy)
  • Patients must have resectable or abatable liver metastases as determined by the attending surgeon
  • Colorectal carcinoma must be confined to the liver except as noted above
  • Patients with limited extrahepatic disease as defined (primary, lymph node, or anastomotic recurrence) must have disease resected or debulked to less than 3 cm in greatest dimension
  • To receive study therapy, patients must be at least 3 weeks post-surgery but no more than 16 weeks post surgery and without evidence of post-operative complications, such as infection or poor wound healing
  • Patients must have < 40% liver resected at the close of completion of the hepatic resection

Exclusion

  • Patients that have received radiation therapy to greater than 50% of their bone marrow
  • Patients with any nonmalignant intercurrent illness (example cardiovascular, pulmonary, or central nervous system disease) which is either poorly controlled with currently available treatment or which is of such severity that the investigators deem it unwise to enter the patient on protocol shall be ineligible
  • Biopsy-proven chronic active hepatitis

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: N/A
  • Intervensjonsmodell: Enkeltgruppeoppdrag
  • Masking: Ingen (Open Label)

Våpen og intervensjoner

Deltakergruppe / Arm
Intervensjon / Behandling
Eksperimentell: Arm I

Patients receive floxuridine as a continuous hepatic arterial infusion on days 1-14 and gemcitabine hydrochloride IV over 30 minutes on days 9 and 11. Patients also receive yttrium Y 90 anti-CEA monoclonal antibody cT84.66 IV over 25 minutes on day 9. Treatment repeats every 6 weeks for up to 3 courses in the absence of disease progression or unacceptable toxicity.

Patients may receive an additional course of floxuridine in combination with systemic therapy at the discretion of the treating physician.

Correlative studies

Correlative studies

Andre navn:
  • farmakologiske studier

Given IV

Andre navn:
  • Gemzar
  • dFdCyd
  • gemcitabin
  • dFdC
  • LY-188011
  • difluordeoksycytidinhydroklorid

Given via hepatic arterial infusion

Andre navn:
  • FUdR
  • 5-FUDR
  • FdUrD
  • floksuridin
  • fluordeoksyuridin
  • fluoruridin deoksyribose

Correlative studies

Correlative studies

Andre navn:
  • MALDI-TOF massespektrometri

Correlative studies

Andre navn:
  • LC

Given IV

Correlative studies

Hva måler studien?

Primære resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
Number of Participants With at Least One Dose Limiting Toxicity
Tidsramme: 4 weeks from start of treatment, up to 2 years.

Dose Limiting Toxicity (DLT) defined as any treatment-related grade grade 3 nonhematologic toxicity not reversible to grade 2 or less within 24 hours, or any grade 4 toxicity.Up to three cycles of therapy were allowed with DLTs determined based on first cycle tolerance. Toxicity was graded using the National Cancer Institute Common Toxicity Criteria version 2.0.

4 weeks from start of treatment, up to 2 years.
Recommended Phase II Dose
Tidsramme: 4 weeks from start of treatment, up to 2 years.

The maximum tolerated dose (MTD) of HAI FUdR in combination with intravenous gemcitabine and 90Y-DTPA-cT84.66 is based on toxicities observed during the first cycle and is defined as the highest dose tested in which fewer than 33% of patients experience an attributable DLT to the study drug, when at least 6 patients are treated at that dose and are evaluable for toxicity. Dose escalations proceeded according to a standard 3+3 design.

4 weeks from start of treatment, up to 2 years.

Sekundære resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
Overall Survival
Tidsramme: Up to 5 years

Estimated using the product-limit method of Kaplan and Meier. Event defined as death due to any cause.

Up to 5 years
Progression-free Survival
Tidsramme: Up to 5 years

Estimated using the product-limit method of Kaplan and Meier. Progression is defined as a 25% increase in the sum of products of measurable lesions over the smallest sum observed, or appearance of any lesions that had disappeared, or appearance of any new lesion/site.

Up to 5 years

Samarbeidspartnere og etterforskere

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

Etterforskere

  • Hovedetterforsker: Jeffrey Wong, City of Hope Medical Center

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)

13. juni 2005

Primær fullføring (Faktiske)

7. februar 2018

Studiet fullført (Faktiske)

7. februar 2018

Datoer for studieregistrering

Først innsendt

27. mars 2008

Først innsendt som oppfylte QC-kriteriene

27. mars 2008

Først lagt ut (Antatt)

28. mars 2008

Oppdateringer av studieposter

Sist oppdatering lagt ut (Faktiske)

3. november 2026

Siste oppdatering sendt inn som oppfylte QC-kriteriene

15. oktober 2026

Sist bekreftet

1. oktober 2026

Mer informasjon

Denne informasjonen ble hentet direkte fra nettstedet clinicaltrials.gov uten noen endringer. Hvis du har noen forespørsler om å endre, fjerne eller oppdatere studiedetaljene dine, vennligst kontakt register@clinicaltrials.gov. Så snart en endring er implementert på clinicaltrials.gov, vil denne også bli oppdatert automatisk på nettstedet vårt. .

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