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XTX202 em pacientes com tumores sólidos avançados

30 de abril de 2026 atualizado por: Xilio Development, Inc.

Um primeiro estudo em humanos, multicêntrico, fase 1/2, aberto de XTX202 em pacientes com tumores sólidos avançados

Um primeiro estudo em humanos, multicêntrico, fase 1/2, aberto de XTX202 em pacientes com tumores sólidos avançados

Visão geral do estudo

Status

Concluído

Condições

Intervenção / Tratamento

Descrição detalhada

Este é um estudo aberto, multicêntrico, de fase 1/2, em humanos, projetado para avaliar a segurança, tolerabilidade e eficácia do XTX202, um pró-fármaco de IL-2 modificado com sua atividade mascarada, como monoterapia em pacientes com doença avançada tumores sólidos.

A Fase 1, Parte 1a, examinará a monoterapia com XTX202 em um projeto de escalonamento de dose 3+3 acelerado e padrão. Com base nos resultados da Parte 1a, a Parte 1b será iniciada para examinar ainda mais o XTX202 em pacientes com tumores sólidos avançados selecionados e para caracterizar ainda mais o XTX202.

Com base nos resultados da Fase 1, os pacientes com tumores sólidos avançados selecionados serão inscritos na Fase 2.

Tipo de estudo

Intervencional

Inscrição (Real)

95

Estágio

  • Fase 2
  • Fase 1

Contactos e Locais

Esta seção fornece os detalhes de contato para aqueles que conduzem o estudo e informações sobre onde este estudo está sendo realizado.

Locais de estudo

  • Estados Unidos
    • California
      • La Jolla, California, Estados Unidos, 92093
        • UC San Diego Moores Cancer Center
      • Los Angeles, California, Estados Unidos, 90095
        • University of California Los Angeles
      • Los Angeles, California, Estados Unidos, 90033
        • Norris Comprehensive Cancer Center
      • Newport Beach, California, Estados Unidos, 92663
        • Hoag Memorial Hospital Presbyterian- Newport Beach
    • District of Columbia
      • Washington D.C., District of Columbia, Estados Unidos, 20007
        • Georgetown University Medical Center
    • Florida
      • Tampa, Florida, Estados Unidos, 33612
        • Moffitt Cancer Center
    • Iowa
      • Iowa City, Iowa, Estados Unidos, 52242
        • University of Iowa Hospitals and Clinics
    • Massachusetts
      • Boston, Massachusetts, Estados Unidos, 02114
        • Massachusetts General Hospital
    • Minnesota
      • Saint Paul, Minnesota, Estados Unidos, 55101
        • HealthPartners Cancer Center at regions Hospital
    • New Jersey
      • Morristown, New Jersey, Estados Unidos, 07960
        • Atlantic Health System/Morristown Medical Center
      • New Brunswick, New Jersey, Estados Unidos, 08903
        • Rutgers Cancer Institute of NJ
    • North Carolina
      • Huntersville, North Carolina, Estados Unidos, 28078
        • Carolina BioOncology Institute
    • Ohio
      • Columbus, Ohio, Estados Unidos, 43210
        • The Ohio State University Wexner Medical Center James Cancer Hospital and Solove Research Institute
    • Pennsylvania
      • Pittsburgh, Pennsylvania, Estados Unidos, 15213
        • UPMC Hillman Cancer Center Pavilion
    • Tennessee
      • Nashville, Tennessee, Estados Unidos, 37203
        • Sarah Cannon Research Institute

Critérios de participação

Os pesquisadores procuram pessoas que se encaixem em uma determinada descrição, chamada de critérios de elegibilidade. Alguns exemplos desses critérios são a condição geral de saúde de uma pessoa ou tratamentos anteriores.

Critérios de elegibilidade

Idades elegíveis para estudo

18 anos e mais velhos (Adulto, Adulto mais velho)

Aceita Voluntários Saudáveis

Não

Descrição

Critério de inclusão:

  1. Critérios de doença

    • Fase 1, Parte 1a: Qualquer malignidade de tumor sólido confirmada histológica ou citologicamente que seja localmente avançada ou metastática e tenha falhado na terapia padrão, ou a terapia padrão não é curativa ou não está disponível
    • Fase 1, Parte 1b: Malignidade de tumor sólido confirmada histologicamente ou citologicamente com uma das seguintes histologias tumorais: RCC apenas com histologia de células claras, melanoma, carcinoma de pele de células escamosas, câncer de ovário, câncer de pulmão de células não pequenas. Os pacientes devem ter sido tratados com a terapia padrão disponível. Aqueles pacientes que receberam imunoterapia anteriormente devem ter se beneficiado deste tratamento. Além disso, pacientes com qualquer uma das histologias acima em um cenário avançado que planejam se submeter a cirurgia de citorredução ou oligometastasectomia podem ser elegíveis para receber 2 ciclos de tratamento com XTX202 em uma subcoorte de "janela de oportunidade".
    • Fase 2, Parte 2a: Pacientes com RCC metastático que foram previamente tratados com um anti-PD-1 aprovado e um TKI. Os pacientes devem ter progredido no tratamento com um mAb anti-PD-1 administrado como monoterapia ou em combinação com outras terapias
    • Fase 2, Parte 2b: Pacientes com melanoma irressecável ou metastático que foram previamente tratados com um anti-PD-1 aprovado e um inibidor de checkpoint anti-CTLA4
  2. Status de desempenho ECOG de 0 ou 1
  3. Função adequada do órgão
  4. Somente os pacientes da parte 1b devem estar dispostos a fornecer biópsias de tumores recentes antes e depois do início do tratamento do estudo.

Critério de exclusão:

  1. Recebeu tratamento anterior com terapia de IL-2
  2. História de doença pulmonar clinicamente significativa
  3. História de doença cardiovascular clinicamente significativa
  4. Tem diagnóstico de imunodeficiência
  5. Tem uma doença autoimune ativa que exigiu tratamento sistêmico nos últimos 2 anos, incluindo o uso de agentes modificadores da doença, corticosteroides ou drogas imunossupressoras
  6. Tem uma infecção ativa que requer terapia sistêmica dentro de 4 semanas antes do tratamento do estudo

Plano de estudo

Esta seção fornece detalhes do plano de estudo, incluindo como o estudo é projetado e o que o estudo está medindo.

Como o estudo é projetado?

Detalhes do projeto

  • Finalidade Principal: Tratamento
  • Alocação: Não randomizado
  • Modelo Intervencional: Atribuição sequencial
  • Mascaramento: Nenhum (rótulo aberto)

Armas e Intervenções

Grupo de Participantes / Braço
Intervenção / Tratamento
Experimental: Expansão de Dose de XTX202 Fase 2

A Parte 2A incluirá pacientes com carcinoma de células renais metastático que progrediram após o tratamento padrão.

A Parte 2B inscreverá pacientes com melanoma que progrediram após o tratamento padrão.
Medicamento: XTX202
Monoterapia XTX202
Experimental: Fase 1 Escalonamento de Dose XTX202 e Expansão Farmacodinâmica

Parte 1A Escalonamento de dose de XTX202 administrado em doses ascendentes a pacientes com tumores sólidos avançados ou metastáticos para encontrar as doses recomendadas de fase 2 (RP2Ds).

Parte 1B Avaliação de XTX202 em pacientes com tumores sólidos avançados selecionados para caracterizar ainda mais o perfil farmacodinâmico de XTX202
Medicamento: XTX202
Monoterapia XTX202

O que o estudo está medindo?

Medidas de resultados primários

Medida de resultado
Descrição da medida
Prazo
Incidence of Dose Limiting Toxicities (DLTs) (Phase 1 Part 1A Only)
Prazo: Cycle 1 day 1 up to just prior to the second dose of study drug at Cycle 2 day 1 (each cycle is 21 days)

All participants in Phase 1 Part 1A (Dose Escalation) who received at least 1 dose of XTX202 and experienced a DLT. DLTs were defined as the following:

  • Any treatment-related Grade ≥ 3 toxicity
  • Any Grade febrile neutropenia

  • The following nonhematologic exceptions:

    • Grade 3 nausea or vomiting lasting < 3 days
    • Grade 3 fatigue lasting < 7 days
  • Any treatment-related toxicity that resulted in a treatment delay of ≥ 7 days
Cycle 1 day 1 up to just prior to the second dose of study drug at Cycle 2 day 1 (each cycle is 21 days)
Incidence of Treatment-emergent Adverse Events (Phase 1 Only)
Prazo: Up to 24 months
Treatment-emergent adverse event (TEAE) is defined as any adverse event that starts or increases in severity on or after the first dose of study drug and no later than 90 days after the last dose of study drug. Adverse events are graded using the NCI CTCAE version 5.0.
Up to 24 months
Investigator-assessed Objective Response Rate (ORR) Per RECIST 1.1 (Phase 2 Only)
Prazo: Up to 24 months

Percentage of participants who achieved at least one confirmed Complete Response (CR) or Partial Response (PR). Response is based on Investigator assessment according to RECIST v1.1.

In the analysis set used for ORR, participants are assigned to a treatment group based on the initial dose received. In the Participant Flow module, participants are assigned to a treatment group based on the highest dose received. One participant in Phase 2 Part 2B initially received XTX202 1.4 mg/kg, then increased the dose to 4.0 mg/kg at a later cycle and was therefore included in the XTX202 4.0 mg/kg dose group.
Up to 24 months
Incidence of Changes in Clinical Laboratory Values (Phase 1 Only) - Biochemistry
Prazo: Up to 24 months
Number of participants that experienced a clinical laboratory test abnormality. Abnormalities considered are those Grade 3-4 events with a >= 1 grade increase from baseline. Baseline is defined as the last available measurement taken prior to the first administration of study treatment. Laboratory data is graded using the NCI CTCAE version 5.0. Participants are included only once, in the highest level of CTCAE Grade.
Up to 24 months
Incidence of Changes in Clinical Laboratory Values (Phase 1 Only) - Hematology
Prazo: up to 24 months
Number of participants that experienced a clinical laboratory test abnormality. Abnormalities considered are those Grade 3-4 events with a >= 1 grade increase from baseline. Baseline is defined as the last available measurement taken prior to the first administration of study treatment. Laboratory data is graded using the NCI CTCAE version 5.0. Participants are included only once, in the highest level of CTCAE Grade.
up to 24 months
Incidence of Changes in Clinical Laboratory Values (Phase 1 Only) - Thyroid Function
Prazo: Up to 24 months
Number of participants with shift from baseline in laboratory results. Baseline is defined as the last available measurement taken prior to the first administration of study treatment. Participants with both baseline and at least one postbaseline result are included. Participants are included only once, in the highest level of CTCAE Grade. Missing = number of patients with missing baseline and/or post baseline laboratory value.
Up to 24 months
Incidence of Changes in Clinical Laboratory Values (Phase 1 Only) - Coagulation
Prazo: Up to 24 months
Number of participants with shift from baseline in laboratory results. Baseline is defined as the last available measurement taken prior to the first administration of study treatment. Participants with both baseline and at least one postbaseline result are included. Participants are included only once, in the highest level of CTCAE Grade. Missing = number of patients with missing baseline and/or post baseline laboratory value. Missing = number of patients with missing baseline and/or post baseline laboratory value
Up to 24 months

Medidas de resultados secundários

Medida de resultado
Descrição da medida
Prazo
Investigator-assessed Objective Response Rate (ORR) Per RECIST 1.1 (Phase 1 Only)
Prazo: Up to 24 months
Percentage of participants who achieved at least one confirmed Complete Response (CR) or Partial Response (PR). Response will be based on Investigator's assessment according to RECIST v1.1.
Up to 24 months
Duration of Response (DOR) (Phase 2 Only)
Prazo: Up to 24 months
Duration of response is defined as time from first documentation of a subsequently confirmed objective response (CR or PR) to the date of the first documentation of radiographic disease progression according to Investigator assessment by RECIST v1.1, or death due to any cause, whichever occurs first. Participants who do not have an observed documented disease progression or death from any cause will be censored at the latest tumor response assessment date.
Up to 24 months
Disease Control Rate (Phase 2 Only)
Prazo: Up to 24 months

Disease Control Rate (DCR) is defined as percentage of participants with confirmed BOR of CR, PR or SD (minimum duration of 6 weeks) according to RECIST v1.1, after the first dose of study treatment.

In the analysis set used for DCR, participants are assigned to a treatment group based on the initial dose received. In the Participant Flow module, participants are assigned to a treatment group based on the highest dose received. One participant in Phase 2 Part 2B initially received XTX202 1.4 mg/kg, then increased the dose to 4.0 mg/kg at a later cycle and was therefore included in the XTX202 4.0 mg/kg dose group.
Up to 24 months
Overall Survival (OS) (Phase 2 Only)
Prazo: Up to 24 months

OS is defined as the time from first administration of study treatment to death due to any cause. For participants without a record of death, OS will be censored at the date they were last known alive.

In the analysis set used for OS, participants are assigned to a treatment group based on the initial dose received.. In the Participant Flow module, participants are assigned to a treatment group based on the highest dose received. One participant in Phase 2 Part 2B initially received XTX202 1.4 mg/kg, then increased the dose to 4.0 mg/kg at a later cycle and was therefore included in the XTX202 4.0 mg/kg dose group
Up to 24 months
Progression-free Survival (PFS) (Phase 2 Only)
Prazo: Up to 24 months

PFS is defined as the time from first administration of study treatment until first documentation of radiographic PD according to RECIST v1.1, or death due to any cause, whichever occurs first. Participants who do not have an observed documented disease progression or death from any cause will be censored at the latest tumor response assessment date.

In the analysis set used for PFS, participants are assigned to a treatment group based on the initial dose received. In the Participant Flow module, participants are assigned to a treatment group based on the highest dose received. One participant in Phase 2 Part 2B initially received XTX202 1.4 mg/kg, then increased the dose to 4.0 mg/kg at a later cycle and was therefore included in the XTX202 4.0 mg/kg dose group
Up to 24 months
Incidence of Treatment-emergent Adverse Events (Phase 2 Only)
Prazo: Up to 24 months
Treatment-emergent adverse event is defined as any adverse event (AE) that starts or increases in severity on or after the first dose of study drug and no later than 90 days after the last dose of study drug. AEs are graded using the NCI CTCAE version 5.0.
Up to 24 months
Incidence of Changes in Clinical Laboratory Values (Phase 2 Only) - Hematology
Prazo: Up to 24 months
Number of participants that experienced a clinical laboratory test abnormality. Abnormalities considered are those Grade 3-4 events with a >= 1 grade increase from baseline. Baseline is defined as the last available measurement taken prior to the first administration of study treatment. Laboratory data is graded using the NCI CTCAE version 5.0. Participants are included only once, in the highest level of CTCAE Grade.
Up to 24 months
Incidence of Changes in Clinical Laboratory Values (Phase 2 Only) - Biochemistry
Prazo: Up to 24 months
Number of participants that experienced a clinical laboratory test abnormality. Abnormalities considered are those Grade 3-4 events with a >= 1 grade increase from baseline. Baseline is defined as the last available measurement taken prior to the first administration of study treatment. Laboratory data is graded using the NCI CTCAE version 5.0. Participants are included only once, in the highest level of CTCAE Grade.
Up to 24 months
Incidence of Changes in Clinical Laboratory Values (Phase 2 Only) - Thyroid Function
Prazo: Up to 24 months
Number of participants with shift from baseline in laboratory results. Baseline is defined as the last available measurement taken prior to the first administration of study treatment. Participants with both baseline and at least one postbaseline result are included. Participants are included only once, in the highest level of CTCAE Grade. Missing = number of patients with missing baseline and/or post baseline laboratory value.
Up to 24 months
Incidence of Changes in Clinical Laboratory Values (Phase 2 Only) - Coagulation
Prazo: Up to 24 months
Number of participants with shift from baseline in laboratory results. Baseline is defined as the last available measurement taken prior to the first administration of study treatment. Participants with both baseline and at least one postbaseline result are included. Participants are included only once, in the highest level of CTCAE Grade. Missing = number of patients with missing baseline and/or post baseline laboratory value.
Up to 24 months
Plasma Concentrations of Total XTX202
Prazo: 0.00, 0.0167, 0.250, 0.500, 1.50, 3.00, 24.0, 72.0, 144, 312, 504 hours post-dose following a single administration of XTX202 on Cycle 1

Plasma Concentration of Total XTX202 by Nominal Time (h) From End of Infusion Following a Single IV Administration of XTX202.

In the analysis set used for PK, participants are assigned to a treatment group based on the initial dose received.

In the Participant Flow module, participants are assigned to a treatment group based on the highest dose received. One participant in Phase 2 Part 2B initially received XTX202 1.4 mg/kg, then increased the dose to 4.0 mg/kg at a later cycle and was therefore included in the XTX202 4.0 mg/kg dose group. One participant in Phase 1 Part 1B initially received XTX202 2.8 mg/kg, then increased the dose to 4.0 mg/kg at a later cycle and was therefore included in the XTX202 4.0 mg/kg dose group.
0.00, 0.0167, 0.250, 0.500, 1.50, 3.00, 24.0, 72.0, 144, 312, 504 hours post-dose following a single administration of XTX202 on Cycle 1
Plasma Concentrations of Intact XTX202
Prazo: 0.00, 0.0167, 0.250, 0.500, 1.50, 3.00, 24.0, 72.0, 144, 312, 504 hours post-dose following a single administration of XTX202 on Cycle 1

Plasma Concentration of Intact XTX202 by Nominal Time (h) From End of Infusion Following a Single IV Administration of XTX202.

In the analysis set used for PK, participants are assigned to a treatment group based on the initial dose received.

In the Participant Flow module, participants are assigned to a treatment group based on the highest dose received. One participant in Phase 2 Part 2B initially received XTX202 1.4 mg/kg, then increased the dose to 4.0 mg/kg at a later cycle and was therefore included in the XTX202 4.0 mg/kg dose group. One participant in Phase 1 Part 1B initially received XTX202 2.8 mg/kg, then increased the dose to 4.0 mg/kg at a later cycle and was therefore included in the XTX202 4.0 mg/kg dose group.
0.00, 0.0167, 0.250, 0.500, 1.50, 3.00, 24.0, 72.0, 144, 312, 504 hours post-dose following a single administration of XTX202 on Cycle 1
Total XTX202 Plasma Trough Concentration
Prazo: From Cycle 1 to up to Cycle 18 (21 days per cycle)

Plasma Trough Concentration of Total XTX202 Following Multiple IV Administrations of XTX202.

In the analysis set used for PK, participants are assigned to a treatment group based on the initial dose received.

In the Participant Flow module, participants are assigned to a treatment group based on the highest dose received. One participant in Phase 2 Part 2B initially received XTX202 1.4 mg/kg, then increased the dose to 4.0 mg/kg at a later cycle and was therefore included in the XTX202 4.0 mg/kg dose group. One participant in Phase 1 Part 1B initially received XTX202 2.8 mg/kg, then increased the dose to 4.0 mg/kg at a later cycle and was therefore included in the XTX202 4.0 mg/kg dose group
From Cycle 1 to up to Cycle 18 (21 days per cycle)
Intact XTX202 Plasma Trough Concentration
Prazo: from Cycle 1 to up to Cycle 18 (21 days per cycle)

Plasma Trough Concentration of Intact XTX202 Following Multiple IV Administrations of XTX202.

In the analysis set used for PK, participants are assigned to a treatment group based on the initial dose received.

In the Participant Flow module, participants are assigned to a treatment group based on the highest dose received. One participant in Phase 2 Part 2B initially received XTX202 1.4 mg/kg, then increased the dose to 4.0 mg/kg at a later cycle and was therefore included in the XTX202 4.0 mg/kg dose group. One participant in Phase 1 Part 1B initially received XTX202 2.8 mg/kg, then increased the dose to 4.0 mg/kg at a later cycle and was therefore included in the XTX202 4.0 mg/kg dose group.
from Cycle 1 to up to Cycle 18 (21 days per cycle)
Maximum Observed Plasma Concentration (Cmax) of Total XTX202
Prazo: up to 21 days following a single IV infusion of XTX202 on Cycle 1

Cmax following a single IV infusion of XTX202.

In the analysis set used for PK, participants are assigned to a treatment group based on the initial dose received.

In the Participant Flow module, participants are assigned to a treatment group based on the highest dose received. One participant in Phase 2 Part 2B initially received XTX202 1.4 mg/kg, then increased the dose to 4.0 mg/kg at a later cycle and was therefore included in the XTX202 4.0 mg/kg dose group. One participant in Phase 1 Part 1B initially received XTX202 2.8 mg/kg, then increased the dose to 4.0 mg/kg at a later cycle and was therefore included in the XTX202 4.0 mg/kg dose group.
up to 21 days following a single IV infusion of XTX202 on Cycle 1
Maximum Observed Plasma Concentration (Cmax) of Intact XTX202
Prazo: up to 21 days following a single IV infusion of XTX202 on Cycle 1

Cmax following a single IV infusion of XTX202.

In the analysis set used for PK, participants are assigned to a treatment group based on the initial dose received.

In the Participant Flow module, participants are assigned to a treatment group based on the highest dose received. One participant in Phase 2 Part 2B initially received XTX202 1.4 mg/kg, then increased the dose to 4.0 mg/kg at a later cycle and was therefore included in the XTX202 4.0 mg/kg dose group. One participant in Phase 1 Part 1B initially received XTX202 2.8 mg/kg, then increased the dose to 4.0 mg/kg at a later cycle and was therefore included in the XTX202 4.0 mg/kg dose group.
up to 21 days following a single IV infusion of XTX202 on Cycle 1
Time of Maximum Observed Concentration (Tmax) of Total XTX202
Prazo: up to 21 days following a single IV infusion of XTX202 on Cycle 1

Time of maximum observed concentration (Tmax) of total XTX202 following a single IV infusion of XTX202.

In the analysis set used for PK, participants are assigned to a treatment group based on the initial dose received.

In the Participant Flow module, participants are assigned to a treatment group based on the highest dose received. One participant in Phase 2 Part 2B initially received XTX202 1.4 mg/kg, then increased the dose to 4.0 mg/kg at a later cycle and was therefore included in the XTX202 4.0 mg/kg dose group. One participant in Phase 1 Part 1B initially received XTX202 2.8 mg/kg, then increased the dose to 4.0 mg/kg at a later cycle and was therefore included in the XTX202 4.0 mg/kg dose group.
up to 21 days following a single IV infusion of XTX202 on Cycle 1
Time of Maximum Observed Concentration (Tmax) of Intact XTX202
Prazo: up to 21 days following a single IV infusion of XTX202 on Cycle 1

Time of maximum observed concentration (Tmax) of intact XTX202 following a single IV infusion of XTX202.

In the analysis set used for PK, participants are assigned to a treatment group based on the initial dose received.

In the Participant Flow module, participants are assigned to a treatment group based on the highest dose received. One participant in Phase 2 Part 2B initially received XTX202 1.4 mg/kg, then increased the dose to 4.0 mg/kg at a later cycle and was therefore included in the XTX202 4.0 mg/kg dose group. One participant in Phase 1 Part 1B initially received XTX202 2.8 mg/kg, then increased the dose to 4.0 mg/kg at a later cycle and was therefore included in the XTX202 4.0 mg/kg dose group.
up to 21 days following a single IV infusion of XTX202 on Cycle 1
Area Under the Curve From Time 0 to 504 Hours (AUC0-504) of Total XTX202
Prazo: up to 21 days following a single IV infusion of XTX202 on Cycle 1

Area under the curve (AUC)of total XTX202 following a single IV infusion of XTX202.

In the analysis set used for PK, participants are assigned to a treatment group based on the initial dose received.

In the Participant Flow module, participants are assigned to a treatment group based on the highest dose received. One participant in Phase 2 Part 2B initially received XTX202 1.4 mg/kg, then increased the dose to 4.0 mg/kg at a later cycle and was therefore included in the XTX202 4.0 mg/kg dose group. One participant in Phase 1 Part 1B initially received XTX202 2.8 mg/kg, then increased the dose to 4.0 mg/kg at a later cycle and was therefore included in the XTX202 4.0 mg/kg dose group.
up to 21 days following a single IV infusion of XTX202 on Cycle 1
Area Under the Curve From Time 0 to 504 Hours (AUC0-504) of Intact XTX202
Prazo: up to 21 days following a single IV infusion of XTX202 on Cycle 1

Area under the curve (AUC) of intact XTX202 following a single IV infusion of XTX202.

In the analysis set used for PK, participants are assigned to a treatment group based on the initial dose received.

In the Participant Flow module, participants are assigned to a treatment group based on the highest dose received. One participant in Phase 2 Part 2B initially received XTX202 1.4 mg/kg, then increased the dose to 4.0 mg/kg at a later cycle and was therefore included in the XTX202 4.0 mg/kg dose group. One participant in Phase 1 Part 1B initially received XTX202 2.8 mg/kg, then increased the dose to 4.0 mg/kg at a later cycle and was therefore included in the XTX202 4.0 mg/kg dose group.
up to 21 days following a single IV infusion of XTX202 on Cycle 1
Half-life (T1/2) of Total XTX202
Prazo: up to 21 days following a single IV infusion of XTX202 on Cycle 1

Half-life (T1/2) of total XTX202 following a single IV infusion of XTX202.

In the analysis set used for PK, participants are assigned to a treatment group based on the initial dose received.

In the Participant Flow module, participants are assigned to a treatment group based on the highest dose received. One participant in Phase 2 Part 2B initially received XTX202 1.4 mg/kg, then increased the dose to 4.0 mg/kg at a later cycle and was therefore included in the XTX202 4.0 mg/kg dose group. One participant in Phase 1 Part 1B initially received XTX202 2.8 mg/kg, then increased the dose to 4.0 mg/kg at a later cycle and was therefore included in the XTX202 4.0 mg/kg dose group.
up to 21 days following a single IV infusion of XTX202 on Cycle 1
Half-life (T1/2) of Intact XTX202
Prazo: up to 21 days following a single IV infusion of XTX202 on Cycle 1

Half-life (T1/2) of intact XTX202 following a single IV infusion of XTX202.

In the analysis set used for PK, participants are assigned to a treatment group based on the initial dose received.

In the Participant Flow module, participants are assigned to a treatment group based on the highest dose received. One participant in Phase 2 Part 2B initially received XTX202 1.4 mg/kg, then increased the dose to 4.0 mg/kg at a later cycle and was therefore included in the XTX202 4.0 mg/kg dose group. One participant in Phase 1 Part 1B initially received XTX202 2.8 mg/kg, then increased the dose to 4.0 mg/kg at a later cycle and was therefore included in the XTX202 4.0 mg/kg dose group.
up to 21 days following a single IV infusion of XTX202 on Cycle 1
Systemic Clearance (CL) of Total XTX202
Prazo: up to 21 days following a single IV infusion of XTX202 on Cycle 1

Systemic clearance (CL) of Total XTX202 following a single IV infusion of XTX202.

In the analysis set used for PK, participants are assigned to a treatment group based on the initial dose received.

In the Participant Flow module, participants are assigned to a treatment group based on the highest dose received. One participant in Phase 2 Part 2B initially received XTX202 1.4 mg/kg, then increased the dose to 4.0 mg/kg at a later cycle and was therefore included in the XTX202 4.0 mg/kg dose group. One participant in Phase 1 Part 1B initially received XTX202 2.8 mg/kg, then increased the dose to 4.0 mg/kg at a later cycle and was therefore included in the XTX202 4.0 mg/kg dose group.
up to 21 days following a single IV infusion of XTX202 on Cycle 1
Systemic Clearance (CL) of Intact XTX202
Prazo: up to 21 days following a single IV infusion of XTX202 on Cycle 1

Systemic clearance (CL) of intact XTX202 following a single IV infusion of XTX202.

In the analysis set used for PK, participants are assigned to a treatment group based on the initial dose received.

In the Participant Flow module, participants are assigned to a treatment group based on the highest dose received. One participant in Phase 2 Part 2B initially received XTX202 1.4 mg/kg, then increased the dose to 4.0 mg/kg at a later cycle and was therefore included in the XTX202 4.0 mg/kg dose group. One participant in Phase 1 Part 1B initially received XTX202 2.8 mg/kg, then increased the dose to 4.0 mg/kg at a later cycle and was therefore included in the XTX202 4.0 mg/kg dose group.
up to 21 days following a single IV infusion of XTX202 on Cycle 1
Volume of Distribution (Vd) of Total XTX202
Prazo: up to 21 days following a single IV infusion of XTX202 on Cycle 1

Volume of distribution (Vd) of total XTX202 following a single IV infusion of XTX202.

In the analysis set used for PK, participants are assigned to a treatment group based on the initial dose received.

In the Participant Flow module, participants are assigned to a treatment group based on the highest dose received. One participant in Phase 2 Part 2B initially received XTX202 1.4 mg/kg, then increased the dose to 4.0 mg/kg at a later cycle and was therefore included in the XTX202 4.0 mg/kg dose group. One participant in Phase 1 Part 1B initially received XTX202 2.8 mg/kg, then increased the dose to 4.0 mg/kg at a later cycle and was therefore included in the XTX202 4.0 mg/kg dose group.
up to 21 days following a single IV infusion of XTX202 on Cycle 1
Volume of Distribution (Vd) of Intact XTX202
Prazo: up to 21 days following a single IV infusion of XTX202 on Cycle 1

Volume of distribution (Vd) of intact XTX202 following a single IV infusion of XTX202.

In the analysis set used for PK, participants are assigned to a treatment group based on the initial dose received.

In the Participant Flow module, participants are assigned to a treatment group based on the highest dose received. One participant in Phase 2 Part 2B initially received XTX202 1.4 mg/kg, then increased the dose to 4.0 mg/kg at a later cycle and was therefore included in the XTX202 4.0 mg/kg dose group. One participant in Phase 1 Part 1B initially received XTX202 2.8 mg/kg, then increased the dose to 4.0 mg/kg at a later cycle and was therefore included in the XTX202 4.0 mg/kg dose group.
up to 21 days following a single IV infusion of XTX202 on Cycle 1
Antidrug Antibody (ADA) Occurrence and Titer in Serum (Phase 1 Only)
Prazo: from Cycle 1 Day 1 to up to 24 months

Overall ADA Incidence Following a Single IV Administration of XTX202

In the analysis set used for ADA, participants are assigned to a treatment group based on the initial dose received.

In the Participant Flow module, participants are assigned to a treatment group based on the highest dose received. One participant in Phase 1 Part 1B initially received XTX202 2.8 mg/kg, then increased the dose to 4.0 mg/kg at a later cycle and was therefore included in the XTX202 4.0 mg/kg dose group.
from Cycle 1 Day 1 to up to 24 months
Incidence and Persistence of ADAs (Including Neutralizing ADAs) and Titers (Phase 2 Only)
Prazo: From Cycle 1 Day 1 to up to 24 months

Overall ADA Incidence Following a Single IV Administration of XTX202.

In the analysis set used for ADA, participants are assigned to a treatment group based on the initial dose received.

In the Participant Flow module, participants are assigned to a treatment group based on the highest dose received. One participant in Phase 2 Part 2B initially received XTX202 1.4 mg/kg, then increased the dose to 4.0 mg/kg at a later cycle and was therefore included in the XTX202 4.0 mg/kg dose group.
From Cycle 1 Day 1 to up to 24 months

Colaboradores e Investigadores

É aqui que você encontrará pessoas e organizações envolvidas com este estudo.

Patrocinador

Xilio Development, Inc.

Datas de registro do estudo

Essas datas acompanham o progresso do registro do estudo e os envios de resumo dos resultados para ClinicalTrials.gov. Os registros do estudo e os resultados relatados são revisados ​​pela National Library of Medicine (NLM) para garantir que atendam aos padrões específicos de controle de qualidade antes de serem publicados no site público.

Datas Principais do Estudo

Início do estudo (Real)

18 de janeiro de 2022

Conclusão Primária (Real)

22 de março de 2025

Conclusão do estudo (Real)

25 de março de 2025

Datas de inscrição no estudo

Enviado pela primeira vez

23 de agosto de 2021

Enviado pela primeira vez que atendeu aos critérios de CQ

10 de setembro de 2021

Primeira postagem (Real)

22 de setembro de 2021

Atualizações de registro de estudo

Última Atualização Postada (Real)

28 de maio de 2026

Última atualização enviada que atendeu aos critérios de controle de qualidade

30 de abril de 2026

Última verificação

1 de março de 2026

Mais Informações

Termos relacionados a este estudo

Termos MeSH relevantes adicionais

Outros números de identificação do estudo

  • XTX202-01/02-001

Plano para dados de participantes individuais (IPD)

Planeja compartilhar dados de participantes individuais (IPD)?

NÃO

Informações sobre medicamentos e dispositivos, documentos de estudo

Estuda um medicamento regulamentado pela FDA dos EUA

Sim

Estuda um produto de dispositivo regulamentado pela FDA dos EUA

Não

produto fabricado e exportado dos EUA

Não

Essas informações foram obtidas diretamente do site clinicaltrials.gov sem nenhuma alteração. Se você tiver alguma solicitação para alterar, remover ou atualizar os detalhes do seu estudo, entre em contato com register@clinicaltrials.gov. Assim que uma alteração for implementada em clinicaltrials.gov, ela também será atualizada automaticamente em nosso site .

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