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BL22 Immunotoxin in Treating Patients Previously Treated With Cladribine for Hairy Cell Leukemia

17. juni 2010 opdateret af: MedImmune LLC

Phase II Trial Of BL22 Immunotoxin In Hairy Cell Leukemia

RATIONALE: The BL22 immunotoxin can locate tumor cells and kill them without harming normal cells. This may be an effective treatment for hairy cell leukemia that has not responded to treatment with cladribine.

PURPOSE: This phase II trial is studying BL22 immunotoxin to see how well it works in treating patients previously treated with cladribine for hairy cell leukemia.

Studieoversigt

Status

Afsluttet

Betingelser

Intervention / Behandling

Detaljeret beskrivelse

OBJECTIVES:

Primary

  • Determine the response rate in patients with cladribine-resistant hairy cell leukemia treated with BL22 immunotoxin.

Secondary

  • Determine the response duration in patients treated with this drug.
  • Determine the safety of this drug in these patients.
  • Determine the pharmacokinetics of this drug in these patients.
  • Correlate BL22 blood levels and toxicity of this drug with the development of neutralizing antibodies in these patients.

OUTLINE: Patients receive BL22 immunotoxin IV over 30 minutes on days 1, 3, and 5 followed by rest.

Patients are then evaluated at 8 weeks. Patients achieving complete hematologic remission are followed. All other patients continue to receive BL22 immunotoxin as above on days 1, 3, and 5. Treatment repeats every 4 weeks for up to a total of 16 courses in the absence of disease progression or unacceptable toxicity. Patients achieving CR without minimal residual disease (MRD) receive 2 courses beyond CR. Patients achieving CR with MRD receive 4 courses beyond CR.

Patients are followed every 4 months for 1 year, every 6 months for 1 year, and then annually thereafter.

PROJECTED ACCRUAL: A total of 36 patients will be accrued for this study within 3 years.

Undersøgelsestype

Interventionel

Tilmelding (Faktiske)

36

Fase

  • Fase 2

Kontakter og lokationer

Dette afsnit indeholder kontaktoplysninger for dem, der udfører undersøgelsen, og oplysninger om, hvor denne undersøgelse udføres.

Studiesteder

  • Forenede Stater
    • Maryland
      • Bethesda, Maryland, Forenede Stater, 20892-1182
        • Warren Grant Magnuson Clinical Center - NCI Clinical Trials Referral Office

Deltagelseskriterier

Forskere leder efter personer, der passer til en bestemt beskrivelse, kaldet berettigelseskriterier. Nogle eksempler på disse kriterier er en persons generelle helbredstilstand eller tidligere behandlinger.

Berettigelseskriterier

Aldre berettiget til at studere

18 år og ældre (Voksen, Ældre voksen)

Tager imod sunde frivillige

Ingen

Køn, der er berettiget til at studere

Alle

Beskrivelse

DISEASE CHARACTERISTICS:

  • Histologically confirmed hairy cell leukemia
  • CD22-positive disease by fluorescence-activated cell sorting with anti-CD22 antibody

  • Meets at least 1 of the following indications for treatment:

    • Absolute neutrophil count less than 1,000/mm^3
    • Hemoglobin less than 10 g/dL
    • Platelet count less than 100,000/mm^3
    • Absolute lymphocyte count greater than 20,000/mm^3
    • Symptomatic splenomegaly

  • Meets 1 of the following response criteria:

    • No response
    • Complete response (CR) or partial response (PR) less than 2 years in duration after the last course of prior cladribine
    • CR or PR less than 4 years in duration after a second or later course of prior cladribine

PATIENT CHARACTERISTICS:

Age

  • 18 and over

Performance status

  • ECOG 0-2

Life expectancy

  • Not specified

Hematopoietic

  • See Disease Characteristics

Hepatic

  • AST and ALT no greater than 2.5 times upper limit of normal (ULN)
  • Bilirubin no greater than 2.2 mg/dL
  • Albumin at least 3.0 g/dL

Renal

  • Creatinine no greater than 1.4 mg/dL OR
  • Creatinine clearance at least 50 mL/min

Cardiovascular

  • No symptomatic congestive heart failure
  • No unstable angina pectoris
  • No cardiac arrhythmia

Other

  • Not pregnant or nursing
  • Negative pregnancy test
  • Fertile patients must use effective contraception
  • No serum that neutralizes more than 75% of the activity of 1 µg/mL of BL22 immunotoxin using a bioassay
  • No ongoing or active infection
  • No psychiatric illness or social situation that would preclude study compliance
  • No other concurrent uncontrolled illness that would preclude study participation
  • Understand and give informed consent

PRIOR CONCURRENT THERAPY:

Biologic therapy

  • No prior BL22 immunotoxin
  • More than 12 weeks since prior monoclonal antibody therapy

Chemotherapy

  • See Disease Characteristics
  • More than 4 weeks since prior systemic cytotoxic chemotherapy

Endocrine therapy

  • More than 4 weeks since prior systemic steroids (except stable doses of prednisone no greater than 20 mg/day)

Radiotherapy

  • Not specified

Surgery

  • Not specified

Other

  • No other concurrent investigational agents

Studieplan

Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

  • Primært formål: Behandling
  • Tildeling: Ikke-randomiseret
  • Interventionel model: Enkelt gruppeopgave
  • Maskning: Ingen (Åben etiket)

Våben og indgreb

Deltagergruppe / Arm
Intervention / Behandling
Eksperimentel: 1
BL22 immunotoxin
Medicin: BL22
Dosing via IV on Days 1,3, and 5.

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Tidsramme
Response rate
Tidsramme: After even cycle numbers (2,4,6,8,10)
After even cycle numbers (2,4,6,8,10)

Sekundære resultatmål

Resultatmål
Tidsramme
Duration of Response: [Timeframe: Date that a response begins with the date that PD is documented.]
Tidsramme: 30 days after last dose of study drug
30 days after last dose of study drug

Samarbejdspartnere og efterforskere

Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.

Sponsor

MedImmune LLC

Publikationer og nyttige links

Den person, der er ansvarlig for at indtaste oplysninger om undersøgelsen, leverer frivilligt disse publikationer. Disse kan handle om alt relateret til undersøgelsen.

Generelle publikationer

Datoer for undersøgelser

Disse datoer sporer fremskridtene for indsendelser af undersøgelsesrekord og resumeresultater til ClinicalTrials.gov. Studieregistreringer og rapporterede resultater gennemgås af National Library of Medicine (NLM) for at sikre, at de opfylder specifikke kvalitetskontrolstandarder, før de offentliggøres på den offentlige hjemmeside.

Studer store datoer

Studiestart

1. oktober 2003

Primær færdiggørelse (Faktiske)

1. april 2007

Studieafslutning (Faktiske)

1. juli 2008

Datoer for studieregistrering

Først indsendt

10. december 2003

Først indsendt, der opfyldte QC-kriterier

10. december 2003

Først opslået (Skøn)

11. december 2003

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Skøn)

22. juni 2010

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

17. juni 2010

Sidst verificeret

1. juni 2010

Mere information

Begreber relateret til denne undersøgelse

Nøgleord

Yderligere relevante MeSH-vilkår

Andre undersøgelses-id-numre

  • CDR0000341680
  • NCI-04-C-0014
  • NCI-6048

Disse oplysninger blev hentet direkte fra webstedet clinicaltrials.gov uden ændringer. Hvis du har nogen anmodninger om at ændre, fjerne eller opdatere dine undersøgelsesoplysninger, bedes du kontakte register@clinicaltrials.gov. Så snart en ændring er implementeret på clinicaltrials.gov, vil denne også blive opdateret automatisk på vores hjemmeside .

Kliniske forsøg med BL22

Søg i lignende forsøg

Sponsorer og samarbejdspartnere

Medicinske tilstande

Narkotikainterventioner

CROs by country

CROs in Panama

Betingelser

Sjældne sygdomme

Narkotikainterventioner

Kosttilskud

Sponsor / samarbejdspartnere

Placeringer

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