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8-chloradenosin til behandling af patienter med recidiverende eller refraktær akut myeloid leukæmi

15. oktober 2026 opdateret af: City of Hope Medical Center

Et fase I/II-forsøg med 8-chlor-adenosin ved tilbagefaldende eller refraktær akut myeloid leukæmi

This phase I/II trial studies the side effects and best dose of 8-chloroadenosine and to see how well it works in treating patients with acute myeloid leukemia that has returned after a period of improvement (relapsed) or does not respond to treatment (refractory). Drugs used in chemotherapy, such as 8-chloroadenosine, 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.

Studieoversigt

Status

Afsluttet

Betingelser

Intervention / Behandling

Detaljeret beskrivelse

PRIMARY OBJECTIVES:

I. To determine the maximum tolerated dose (recommended phase II dose, RP2D) of 8-chloro-adenosine, when given as a single agent, in patients with relapsed or refractory acute myeloid leukemia. (Phase I) II. To assess tolerability and safety of 8-chloro-adenosine at each dose level by evaluation of toxicities including: type, frequency, severity, attribution, time course and duration. (Phase I) III. To estimate the response rate and to evaluate the antitumor activity of 8-chloro-adenosine, when given as a single agent, as assessed by complete remission rate (complete remission [CR] + complete remission with incomplete blood count recovery [CRi]). (Phase II)

SECONDARY OBJECTIVES:

I. To evaluate for disease response to 8-chloro-adenosine in refractory/relapsed acute myeloid leukemia (AML) on each dose level tested. (Phase I) II. To obtain estimates of remission duration and survival probabilities (overall and event-free). (Phase II) III. To obtain an estimate of the overall response rate (CR + CRi + partial response [PR]). (Phase II) IV. To summarize and evaluate toxicities by type, frequency, severity, attribution, time course and duration. (Phase II)

CLINICAL PHARMACOLOGY OBJECTIVES:

I. To describe the plasma, urinary and cellular pharmacokinetics of 8-chloro-adenosine and metabolites.

II. To determine the impact of 8-chloro-adenosine on cellular adenosine triphosphate (ATP) pool in AML blasts.

III. To assess the impact of 8-chloro-adenosine therapy on select short-lived messenger (m) ribonucleic acids (RNAs) and corresponding proteins in circulating AML blasts.

IV. To correlate clinical responses and toxicity with plasma/urine 8-chloro-adenosine level (pharmacokinetic [PK]), cellular 8-chloro-ATP (PK) and cellular ATP pool.

EXPLORATORY EX-VIVO MOLECULAR OBJECTIVES:

I. To determine the cytotoxicity of 8-chloro-adenosine toward leukemic progenitor cells in vitro.

II. To generate a preliminary pre-treatment RNA/micro RNA (miRNA) signature in leukemic progenitor cells, and explore its possible association with in vitro cytotoxicity to 8-chloro-adenosine.

III. To explore the possible association between the preliminary RNA/miRNA signature and clinical response to 8-chloro-adenosine.

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

Patients receive 8-chloro-adenosine intravenously (IV) over 4 hours on days 1-5. Treatment repeats every 28 days for up to 4 courses in the absence of disease progression or unacceptable toxicity.

After completion of study treatment, patients are followed up at 30 days and then every 3 months for up to 2 years.

Undersøgelsestype

Interventionel

Tilmelding (Faktiske)

20

Fase

  • Fase 2
  • Fase 1

Kontakter og lokationer

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

Studiesteder

    • California
      • Duarte, California, Forenede Stater, 91010
        • City of Hope Medical Center

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

Inclusion Criteria:

  • All subjects must have the ability to understand and the willingness to sign a written informed consent

  • Patients must have a life expectancy of > 3 months

  • Patients must exhibit an Eastern Cooperative Oncology Group (ECOG) performance status of 0-2

  • Patients must have a diagnosis of AML as per World Health Organization (WHO) Classification of Hematologic Neoplasms

  • Patients must meet one of the three treatment history criteria:

    • Relapsed AML who have failed at least 1 line of salvage therapy
    • De novo AML who have not achieved CR after 2 lines of therapy
    • AML evolving from myelodysplastic syndrome (MDS) or myeloproliferative disorder who have failed hypomethylating agent or induction chemotherapy
    • Patients who have relapsed after allogeneic hematopoietic cell transplant (HCT) are eligible if they are at least 3 months after HCT, do not have active graft vs. host disease (GVHD) and are off immunosuppression except for maintenance dose of steroids (prednisone 10 mg/day or less)
  • At least 2 weeks from prior chemotherapy or radiation therapy to time of start of treatment, except for hydroxyurea or corticosteroid therapy which may be continued through cycle 1

  • Aspartate aminotransferase (AST) and alanine aminotransferase (ALT) =< 2.5 x upper limit of normal (ULN)

  • Total bilirubin =< 1.5 X ULN

  • Corrected QT (QTc) =< 480 ms

  • Calculated creatinine clearance (CrCl) >= 50 mL/min per 24 hour urine collection or the Cockcroft-Gault formula

  • Negative serum or urine beta-human chorionic gonadotropin (beta-HCG) test (female of childbearing potential only), to be performed locally within the screening period

  • Agreement by females of childbearing potential and sexually active males to use an effective method of contraception (hormonal or barrier method of birth control or abstinence) prior to study entry and for three months following duration of study participation; the effects of study treatment on a developing fetus have the potential for teratogenic or abortifacient effects; should a woman become pregnant or suspect that she is pregnant while participating on the trial, she should inform her treating physician immediately

Exclusion Criteria:

  • Current or planned use of other investigational agents, or concurrent biological chemotherapy, or radiation therapy during the study treatment period
  • Expected to undergo HCT within 120 days of enrollment
  • Current or planned use of agents that prolong or suspected to prolong QTc
  • Diagnosis of acute promyelocytic leukemia
  • Active central nervous system leukemia
  • Active fungal infection or bacterial sepsis
  • Active peptic ulcer disease
  • History of heart failure or cardiac arrhythmia
  • Other active malignancy except for localized skin cancer, bladder, prostate, breast or cervical carcinoma in situ
  • Pregnant women and women who are lactating; 8-chloro-adenosine is an agent with the potential for teratogenic or abortifacient effects; because there is an unknown but potential risk for adverse events in nursing infants secondary to treatment of the mother with 8-chloro-adenosine, breastfeeding should be discontinued if the mother is treated with 8-chloro-adenosine
  • Any other condition that would, in the investigator's judgment, contraindicate the patient's participation in the clinical study due to safety concerns or compliance with clinical study procedures
  • Prospective participants who, in the opinion of the investigator, may not be able to comply with all study procedures (including compliance issues related to feasibility/logistics)

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: Sekventiel tildeling
  • Maskning: Ingen (Åben etiket)

Våben og indgreb

Deltagergruppe / Arm
Intervention / Behandling
Eksperimentel: Phase I - 100mg/m^2 1-hour infusion

100mg/m^2 8-chloro-adenosine administered a one-hour intravenous infusion daily for first 5 days of each 28-day cycle, up to four cycles.

Correlative studies

Correlative studies

Given IV

Andre navne:
  • 8-chlor-adenosin
  • 8-Cl-adenosin
  • 8-Cl-Ado
Eksperimentel: Phase I - 200mg/m^2 1-hour infusion

200mg/m^2 8-chloro-adenosine administered a one-hour intravenous infusion daily for first 5 days of each 28-day cycle, up to four cycles.

Correlative studies

Correlative studies

Given IV

Andre navne:
  • 8-chlor-adenosin
  • 8-Cl-adenosin
  • 8-Cl-Ado
Eksperimentel: Phase I - 400mg/m^2 1-hour infusion

400mg/m^2 8-chloro-adenosine administered a one-hour intravenous infusion daily for first 5 days of each 28-day cycle, up to four cycles.

Correlative studies

Correlative studies

Given IV

Andre navne:
  • 8-chlor-adenosin
  • 8-Cl-adenosin
  • 8-Cl-Ado
Eksperimentel: Phase I - 800mg/m^2 1-hour infusion

800mg/m^2 8-chloro-adenosine administered a one-hour intravenous infusion daily for first 5 days of each 28-day cycle, up to four cycles.

Correlative studies

Correlative studies

Given IV

Andre navne:
  • 8-chlor-adenosin
  • 8-Cl-adenosin
  • 8-Cl-Ado
Eksperimentel: Phase I - 400mg/m^2 4-hour infusion

400mg/m^2 8-chloro-adenosine administered a four-hour intravenous infusion daily for first 5 days of each 28-day cycle, up to four cycles.

Correlative studies

Correlative studies

Given IV

Andre navne:
  • 8-chlor-adenosin
  • 8-Cl-adenosin
  • 8-Cl-Ado
Eksperimentel: Phase I - 600mg/m^2 4-hour infusion

600mg/m^2 8-chloro-adenosine administered a four-hour intravenous infusion daily for first 5 days of each 28-day cycle, up to four cycles.

Correlative studies

Correlative studies

Given IV

Andre navne:
  • 8-chlor-adenosin
  • 8-Cl-adenosin
  • 8-Cl-Ado

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Recommended Phase II Dose (RP2D) of 8-Chloro-adenosine (8-Cl-Ado)
Tidsramme: Up to 28 days following first study agent administration.

According to the standard 3+3 rules, where the highest DL that produced ≤ 1/6 DLTs in cycle 1 would be defined as the maximum tolerated dose (MTD). The RP2D of 8-Cl-Ado would generally be the MTD, but it could be less than the initially calculated MTD as determined from a review of the available data and cumulative toxicities from phase 1.

Up to 28 days following first study agent administration.
Dose Limiting Toxicity (DLT)
Tidsramme: Up to 28 days following first study agent administration.

Toxicity was graded according to the NCI-Common Terminology Criteria for Adverse Events version 4.03. A DLT was defined as any of the following toxicities (please see the details in section of 13.2 of the protocol) that occur during cycle 1, per CTCAE version 4.03, and were considered related to the study drug.

Up to 28 days following first study agent administration.

Sekundære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Complete Remission Rate (CR + CRi)
Tidsramme: Up to 2 years following first study agent administration.

Complete remission rate (CR + CRi) based on the Döhner 2010 criteria and calculated as the percent of evaluable patients that have confirmed CR or CRi is to evaluate the antitumor activity of 8-chloro-adenosine.

Up to 2 years following first study agent administration.

Samarbejdspartnere og efterforskere

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

Sponsor

Samarbejdspartnere

Efterforskere

  • Ledende efterforsker: Vinod Pullarkat, City of Hope Medical Center

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 (Faktiske)

5. oktober 2015

Primær færdiggørelse (Faktiske)

9. marts 2021

Studieafslutning (Faktiske)

16. marts 2021

Datoer for studieregistrering

Først indsendt

10. juni 2015

Først indsendt, der opfyldte QC-kriterier

24. juli 2015

Først opslået (Anslået)

28. juli 2015

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

3. november 2026

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

15. oktober 2026

Sidst verificeret

1. oktober 2026

Mere information

Begreber relateret til denne undersøgelse

Andre undersøgelses-id-numre

  • 14269
  • 14269 (Anden identifikator: City of Hope Comprehensive Cancer Center)
  • NCI-2015-00871 (Registry Identifier: CTRP (Clinical Trial Reporting Program))
  • 122489
  • 123456

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 .