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Immuno-Targeted Therapy Plus Low-Dose Chemotherapy for Newly Diagnosed Adult Ph-Negative B-ALL: A Prospective Umbrella Trial (Ph- ALL-2026)

8. juni 2026 oppdatert av: Institute of Hematology & Blood Diseases Hospital, China

A Prospective Umbrella Clinical Trial of Immuno-Targeted Agents Combined With Low-Dose Chemotherapy for Newly Diagnosed Adult Philadelphia Chromosome-Negative B-Cell Acute Lymphoblastic Leukemia

This is a prospective, open-label, single-arm, umbrella phase 2 clinical trial enrolling 32 adult patients with newly diagnosed Philadelphia chromosome-negative (Ph-) B-cell acute lymphoblastic leukemia (B-ALL). All patients receive a frontline treatment backbone consisting of low-dose chemotherapy combined with immuno-targeted agents and a BCL2 inhibitor. Subsequent treatment pathways are guided by MRD response, disease characteristics, and clinical decision-making, including antibody-based immunotherapy, CAR-T cell therapy, or hematopoietic stem cell transplantation. All patients continue protocol-defined maintenance therapy after consolidation.

The primary endpoint is the complete remission rate with negative flow cytometric MRD after induction therapy. MRD is monitored longitudinally by flow cytometry, quantitative PCR, and immune repertoire sequencing. Safety is evaluated according to NCI CTCAE version 5.0.

Studieoversikt

Status

Har ikke rekruttert ennå

Forhold

Intervensjon / Behandling

Studietype

Intervensjonell

Registrering (Antatt)

32

Fase

  • Fase 2

Kontakter og plasseringer

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

Studiekontakt

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

  • Voksen
  • Eldre voksen

Tar imot friske frivillige

Nei

Beskrivelse

Inclusion Criteria:

  1. Newly diagnosed adult (≥18 years) patients with Ph-negative B-cell acute lymphoblastic leukemia according to WHO 2022 criteria.
  2. CD22-positive expression on tumor cells (CD22 ≥20%).
  3. Expected survival ≥3 months.
  4. Sexually active men and women of childbearing potential must agree to use effective contraception.
  5. Ability to understand and voluntarily sign informed consent, and willingness to comply with study requirements. Informed consent must be signed by the patient or a legal next of kin prior to initiation of any study-specific procedures.

Exclusion Criteria:

  1. Burkitt lymphoma/leukemia.
  2. Acute leukemia of ambiguous lineage.
  3. Pregnant women.
  4. Severe, uncontrolled active infections.
  5. History of chronic liver disease (e.g., liver cirrhosis) or prior veno-occlusive disease (VOD) / sinusoidal obstruction syndrome (SOS).
  6. History of clinically significant ventricular arrhythmias, unexplained syncope (not vasovagal), or sinus node dysfunction or high-grade atrioventricular (AV) block with chronic bradycardia, unless a permanent pacemaker has been implanted.
  7. Uncontrolled active hepatitis B or hepatitis C infection, or known HIV seropositivity. HIV testing may be required according to local regulations or standards.
  8. Psychiatric disorders that may impair the subject's ability to complete treatment or provide informed consent.
  9. Any other conditions deemed by the investigator to render the subject unsuitable for participation in the study.

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: Sekvensiell tildeling
  • Masking: Ingen (Open Label)

Våpen og intervensjoner

Deltakergruppe / Arm
Intervensjon / Behandling
Eksperimentell: Immuno-Targeted Therapy Plus Low-Dose Chemotherapy
Adult patients with newly diagnosed Philadelphia chromosome-negative B-cell acute lymphoblastic leukemia (Ph- B-ALL) receive frontline treatment with immuno-targeted agents, a BCL2 inhibitor, and low-dose chemotherapy. Induction therapy includes inotuzumab ozogamicin, venetoclax, vincristine, cyclophosphamide, and dexamethasone. Subsequent treatment is adapted according to measurable residual disease (MRD) response, antigen expression profile, and clinical condition, and may include blinatumomab-based immunotherapy, venetoclax-containing chemotherapy, CD19-directed CAR-T cell therapy, or hematopoietic stem cell transplantation. All patients proceed to protocol-defined maintenance therapy.
Legemiddel: Inotuzumab Ozogamicin (IO)
Anti-CD22 antibody-drug conjugate (ADC) administered intravenously during induction and consolidation therapy.
Legemiddel: Venetoclax
BCL-2 inhibitor administered orally daily during induction and consolidation cycles to enhance leukemic cell apoptosis.
Legemiddel: Blinatumomab
CD19/CD3 bispecific T-cell engager (BiTE) administered as continuous intravenous infusion during consolidation therapy.
Biologisk: CD19-directed chimeric antigen receptor (CAR-T) T cells
Autologous CD19 CAR-T cell therapy administered as a single intravenous infusion as optional consolidation therapy for eligible patients.
Legemiddel: Vincristine
A vinca alkaloid that inhibits microtubule formation by binding to tubulin, resulting in mitotic arrest and inhibition of proliferation of rapidly dividing leukemic cells.
Legemiddel: Cyclophosphamide
An alkylating agent that forms DNA cross-links, leading to inhibition of DNA replication and transcription and subsequent apoptosis of rapidly proliferating hematopoietic cells.
Legemiddel: Dexamethasone
A synthetic glucocorticoid that induces lymphoid cell apoptosis and exerts anti-inflammatory and immunosuppressive effects, contributing to reduction of leukemic burden.
Legemiddel: Methotrexate
A folate antimetabolite that inhibits dihydrofolate reductase, resulting in impaired DNA synthesis and cell replication, particularly in rapidly dividing lymphoid cells.
Legemiddel: Cytarabine (Ara-C)
A pyrimidine nucleoside analog that inhibits DNA polymerase, leading to termination of DNA chain elongation and inhibition of leukemic cell proliferation.
Legemiddel: Prednisone
A glucocorticoid that induces apoptosis in lymphoid cells and provides anti-inflammatory and immunosuppressive effects as part of multi-agent leukemia therapy.
Legemiddel: Mercaptopurine 50 mg
A purine analog antimetabolite that interferes with purine nucleotide synthesis and incorporates into DNA and RNA, inhibiting nucleic acid synthesis and cell proliferation.

Hva måler studien?

Primære resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
Flow Cytometric MRD-Negative Complete Remission Rate
Tidsramme: At the end of induction therapy (approximately 1 month after treatment initiation)
Proportion of patients achieving complete remission (CR) with negative measurable residual disease (MRD) assessed by multiparameter flow cytometry after completion of induction therapy.
At the end of induction therapy (approximately 1 month after treatment initiation)

Sekundære resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
Next-Generation Sequencing (NGS)-MRD Negative Remission Rate
Tidsramme: Within 3 months after treatment initiation
Proportion of patients achieving MRD-negative remission assessed by immune repertoire sequencing.
Within 3 months after treatment initiation
Best MRD Clearance Rate
Tidsramme: Within 3 months after treatment initiation
Proportion of patients achieving the deepest MRD response during the first 3 months of treatment as assessed by flow cytometry, quantitative PCR, or immune repertoire sequencing.
Within 3 months after treatment initiation
Overall Survival (OS)
Tidsramme: Up to 5 years
Time from study enrollment to death from any cause.
Up to 5 years
Disease-Free Survival (DFS)
Tidsramme: Up to 5 years
Time from achievement of complete remission to relapse or death from any cause.
Up to 5 years
Relapse-Free Survival (RFS)
Tidsramme: Up to 5 years
Time from achievement of MRD-negative remission to hematologic relapse or death.
Up to 5 years
30-Day Mortality
Tidsramme: 30 days
Proportion of patients who die from any cause within 30 days after treatment initiation.
30 days
60-Day Mortality
Tidsramme: 60 days
Proportion of patients who die from any cause within 60 days after treatment initiation.
60 days
Incidence of Adverse Events
Tidsramme: From treatment initiation through completion of study treatment, up to 5 years
Frequency, severity, and type of adverse events graded according to the National Cancer
From treatment initiation through completion of study treatment, up to 5 years

Samarbeidspartnere og etterforskere

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

Sponsor

Institute of Hematology & Blood Diseases Hospital, China

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 (Antatt)

12. juni 2026

Primær fullføring (Antatt)

31. mai 2028

Studiet fullført (Antatt)

31. mai 2030

Datoer for studieregistrering

Først innsendt

8. juni 2026

Først innsendt som oppfylte QC-kriteriene

8. juni 2026

Først lagt ut (Faktiske)

11. juni 2026

Oppdateringer av studieposter

Sist oppdatering lagt ut (Faktiske)

11. juni 2026

Siste oppdatering sendt inn som oppfylte QC-kriteriene

8. juni 2026

Sist bekreftet

1. juni 2026

Mer informasjon

Begreper knyttet til denne studien

Ytterligere relevante MeSH-vilkår

Andre studie-ID-numre

  • IIT2026063
  • IIT2026063-EC-1 (Annen identifikator: Ethics Committee of Institute of Hematology & Blood Diseases Hospital, CAMS & PUMC)

Plan for individuelle deltakerdata (IPD)

Planlegger du å dele individuelle deltakerdata (IPD)?

UBESLUTTE

Legemiddel- og utstyrsinformasjon, studiedokumenter

Studerer et amerikansk FDA-regulert medikamentprodukt

Nei

Studerer et amerikansk FDA-regulert enhetsprodukt

Nei

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