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Paricalcitol Versus Pirfenidone for Improving Surgical Resectability in Patients With Peritoneal Cancer (RANDY 1A)

28 de setembro de 2026 atualizado por: Patrick Wagner, MD, FACS

A Randomized Phase II Bayesian Pick-the-Winner Clinical Trial Investigating the Efficacy of Fibrosis-Modulating Agents (Paricalcitol and Pirfenidone) in Improving Surgical Resectability in Patients With Peritoneal Carcinomatosis Ineligible for Definitive Cytoreduction (Randy 1A)

The goal of this clinical trial is to learn if paricalcitol or pirfenidone can help make tumors removable by surgery in adults with peritoneal cancer who are currently unable to have their tumor removed.

The study aims to answer are whether paricalcitol or pirfenidone improve tumor response and tissue healing after 12 weeks of treatment, and which of these two drugs is more effective at helping participants become eligible for surgery. Researchers will compare paricalcitol to pirfenidone to see which drug works better and has a manageable safety profile.

Participants will take either paricalcitol or pirfenidone by mouth every day for 12 weeks while continuing their standard chemotherapy, visit the clinic regularly for checkups and lab tests, keep a daily diary to track their study medication, and undergo a surgical re-evaluation after treatment to see if their tumor can be removed.

Visão geral do estudo

Status

Ainda não está recrutando

Condições

Intervenção / Tratamento

Descrição detalhada

This is a single-center, randomized Phase II clinical trial designed to investigate the efficacy of repurposing fibrosis-modulating agents to improve surgical resectability in patients with peritoneal carcinomatosis. Peritoneal carcinomatosis is characterized by a challenging tumor microenvironment (TME) featuring extensive fibrosis and a high density of cancer-associated fibroblasts (CAFs). These elements create a dense desmoplastic barrier that impedes drug penetration, limits therapeutic efficacy, and frequently renders patients ineligible for definitive surgical cytoreduction.

To overcome these barriers, the trial evaluates two distinct anti-fibrotic agents: paricalcitol, a synthetic Vitamin D receptor agonist that promotes CAF quiescence and stromal remodeling, and pirfenidone, an oral anti-fibrotic agent that inhibits fibrosis by downregulating the TGF-β signaling pathway and collagen synthesis. Eligible participants are randomized in a 1:1 ratio to receive a 12-week course of either oral paricalcitol (2 mcg daily, titratable) or oral pirfenidone (titrated to 801 mg three times daily with food), administered concurrently with their ongoing standard systemic chemotherapy.

Tipo de estudo

Intervencional

Inscrição (Estimado)

74

Estágio

  • Fase 2

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.

Contato de estudo

Estude backup de contato

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 a 80 anos (Adulto, Adulto mais velho)

Aceita Voluntários Saudáveis

Não

Gêneros Elegíveis para o Estudo

Tudo

Descrição

Inclusion Criteria:

  • Males or females, age 18 to <81 years at the time of consent
  • Biopsy-proven peritoneal carcinomatosis
  • Documented receipt of at least three months of standard systemic chemotherapy prior to initiation, with persistent disease
  • ECOG Performance Status of 0 or 1
  • Adequate organ function within 14 days prior to anti-fibrotic initiation
  • Negative serum pregnancy test for women of childbearing potential (WOCBP) within 7 days prior to initiation
  • Able to understand and provide written informed consent
  • Willingness and ability to comply with all study procedures

Exclusion Criteria:

  • Patients deemed eligible for definitive cytoreductive surgery

    • Current or recent (within 30 days) use of paricalcitol, pirfenidone, or Vitamin D supplementation above USDA-recommended daily dosage
    • Known allergy or medical contraindication to study drugs
    • Hypersensitivity to any of the study drugs or to any ingredient in the formulation
    • Receipt of any investigational drug within 30 days prior to initiation
    • Active pregnancy or lactation
    • Active smoking
    • Active brain metastases
    • Elevated Vitamin D level (>2x upper limit of normal)
    • Significant comorbidities including abnormal calcium/phosphate, history of serious drug-induced liver injury, severe cardiac conditions, patients with or predisposed to cardiac arrhythmias, or uncontrolled hypertension
    • Concomitant medications that, after review by the study pharmacist(s) and potential dose modification in accordance with prescribing guidelines, still pose an unmanageable drug-drug interaction or unacceptable safety risk with either study drug

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: Randomizado
  • Modelo Intervencional: Atribuição Paralela
  • Mascaramento: Nenhum (rótulo aberto)

Armas e Intervenções

Grupo de Participantes / Braço
Intervenção / Tratamento
Experimental: Paricalcitol Arm

Participants receive oral paricalcitol once daily for 12 weeks concurrently with standard systemic chemotherapy.
Medicamento: Paricalcitol

Oral, 2 mcg once daily for 12 weeks
Experimental: Pirfenidone Arm

Participants receive oral pirfenidone three times daily for 12 weeks (with initial dose titration) concurrently with standard systemic chemotherapy.
Medicamento: pirfenidone

Oral, titrated up to 801 mg three times daily (total daily dose: 2403 mg/day) with food for 12 weeks.

O que o estudo está medindo?

Medidas de resultados primários

Medida de resultado
Descrição da medida
Prazo
Paricalcitol Efficacy
Prazo: 12 weeks from treatment initiation

Proportion of patients achieving a clinicopathologic response (CPR)
12 weeks from treatment initiation
Pirfenidone Efficacy
Prazo: 12 weeks from treatment initiation

Proportion of patients achieving a clinicopathologic response (CPR)
12 weeks from treatment initiation

Medidas de resultados secundários

Medida de resultado
Descrição da medida
Prazo
Severity of Treatment-Emergent Adverse Events for Paricalcitol [Safety]
Prazo: 16 weeks from treatment initiation

Maximum severity grade of treatment-emergent adverse events per participant, assessed on a scale from Grade 1 (mild) to Grade 5 (death) according to the Common Terminology Criteria for Adverse Events (CTCAE) version 5.0. Higher grades indicate a more severe outcome.
16 weeks from treatment initiation
Severity of Treatment-Emergent Adverse Events for Pirfenidone [Safety]
Prazo: 16 weeks from treatment initiation

Maximum severity grade of treatment-emergent adverse events per participant, assessed on a scale from Grade 1 (mild) to Grade 5 (death) according to the Common Terminology Criteria for Adverse Events (CTCAE) version 5.0. Higher grades indicate a more severe outcome
16 weeks from treatment initiation
Incidence of Treatment-Emergent Adverse Events for Paricalcitol [Safety
Prazo: 16 weeks from treatment initiation

Number of participants experiencing one or more treatment-emergent adverse events, as graded according to the Common Terminology Criteria for Adverse Events (CTCAE) version 5.0.
16 weeks from treatment initiation
Incidence of Treatment-Emergent Adverse Events for Pirfenidone [Safety]
Prazo: 16 weeks from treatment initiation

Number of participants experiencing one or more treatment-emergent adverse events, as graded according to the Common Terminology Criteria for Adverse Events (CTCAE) version 5.0.
16 weeks from treatment initiation
Patient-Reported Quality of Life Outcomes Using the Medical Outcomes Study 20-Item Short-Form Health Survey (SF-20) for Paricalcitol [Tolerability]
Prazo: 12 weeks

Assessment of patient-reported quality of life outcomes using the SF-20 questionnaire. Each subscale ranges from a minimum score of 0 to a maximum score of 100, where higher scores indicate a better health-related quality of life outcome.
12 weeks
Patient-Reported Quality of Life Outcomes Using the Medical Outcomes Study 20-Item Short-Form Health Survey (SF-20) for Pirfenidone [Tolerability]
Prazo: 12 weeks

Assessment of patient-reported quality of life outcomes using the SF-20 questionnaire. Each subscale ranges from a minimum score of 0 to a maximum score of 100, where higher scores indicate a better health-related quality of life outcome.
12 weeks
Treatment Adherence Evaluated via Study Drug Diaries for Paricalcitol [Feasibility]
Prazo: 12 weeks

Percentage of total prescribed doses taken based on study drug diaries (number of doses taken divided by total expected doses over 12 weeks).
12 weeks
Treatment Adherence Evaluated via Study Drug Diaries for Pirfenidone [Feasibility]
Prazo: 12 weeks

Percentage of total prescribed doses taken based on study drug diaries (number of doses taken divided by total expected doses over 12 weeks).
12 weeks
Molecular Biomarker Analysis of Treatment Response in Research Blood Samples for Paricalcitol [Efficacy]
Prazo: 12 weeks

Evaluation of molecular correlates of treatment response using research blood samples collected at baseline and post-treatment.
12 weeks
Molecular Biomarker Analysis of Treatment Response in Research Blood Samples for Pirfenidone [Efficacy]
Prazo: 12 weeks

Evaluation of molecular correlates of treatment response using research blood samples collected at baseline and post-treatment.
12 weeks
Molecular Biomarker Analysis of Treatment Response in Research Blood Samples for Paricalcitol [Efficacy]
Prazo: 12 weeks

Evaluation of circulating biomarkers of treatment response using research blood samples collected at baseline and post-treatment.
12 weeks
Molecular Biomarker Analysis of Treatment Response in Research Blood Samples for Pirfenidone [Efficacy]
Prazo: 12 weeks

Evaluation of circulating biomarkers of treatment response using research blood samples collected at baseline and post-treatment.
12 weeks
Biomarker Analysis of Treatment Response in Tissue Biopsy Samples for Pirfenidone [Efficacy]
Prazo: 12 weeks

Quantitative assessment of treatment response using baseline and post-treatment archival tissue biopsy samples, measuring changes in Ki-67 positive tumor cells
12 weeks
Biomarker Analysis of Treatment Response in Tissue Biopsy Samples for Paricalcitol [Efficacy]
Prazo: 12 weeks

Quantitative assessment of treatment response using baseline and post-treatment archival tissue biopsy samples, measuring changes in Ki-67 positive tumor cells
12 weeks
Biomarker Analysis of Treatment Response in Tissue Biopsy Samples for Paricalcitol [Efficacy]
Prazo: 12 weeks from treatment initiation

Quantitative assessment of treatment response using baseline and post-treatment archival tissue biopsy samples, measuring changes in density of Fibroblast Activation Protein-positive (FAP+)
12 weeks from treatment initiation
Biomarker Analysis of Treatment Response in Tissue Biopsy Samples for Pirfenidone [Efficacy]
Prazo: 12 weeks from treatment initiation

Quantitative assessment of treatment response using baseline and post-treatment archival tissue biopsy samples, measuring changes in density of Fibroblast Activation Protein-positive (FAP+)
12 weeks from treatment initiation
Biomarker Analysis of Treatment Response in Tissue Biopsy Samples for Paricalcitol [Efficacy]
Prazo: 12 weeks from treatment initiation

Quantitative assessment of treatment response using baseline and post-treatment archival tissue biopsy samples measuring changes in collagen density (quantified via Sirius Red or Masson's Trichrome staining).
12 weeks from treatment initiation
Biomarker Analysis of Treatment Response in Tissue Biopsy Samples for Pirfenidone [Efficacy]
Prazo: 12 weeks from treatment initiation

Quantitative assessment of treatment response using baseline and post-treatment archival tissue biopsy samples measuring changes in collagen density (quantified via Sirius Red or Masson's Trichrome staining).
12 weeks from treatment initiation

Colaboradores e Investigadores

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

Patrocinador

Patrick Wagner, MD, FACS

Investigadores

  • Investigador principal: Patrick Wagner, AHN Health Network

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 (Estimado)

1 de setembro de 2026

Conclusão Primária (Estimado)

1 de setembro de 2030

Conclusão do estudo (Estimado)

1 de novembro de 2030

Datas de inscrição no estudo

Enviado pela primeira vez

16 de setembro de 2026

Enviado pela primeira vez que atendeu aos critérios de CQ

28 de setembro de 2026

Primeira postagem (Real)

5 de outubro de 2026

Atualizações de registro de estudo

Última Atualização Postada (Real)

5 de outubro de 2026

Última atualização enviada que atendeu aos critérios de controle de qualidade

28 de setembro de 2026

Última verificação

1 de setembro de 2026

Mais Informações

Termos relacionados a este estudo

Palavras-chave

Termos MeSH relevantes adicionais

Outros números de identificação do estudo

  • 2026-077

Plano para dados de participantes individuais (IPD)

Planeja compartilhar dados de participantes individuais (IPD)?

NÃO

Descrição do plano IPD

Sharing of data or bio-specimens is not currently planned and will require a separate IRB application and a Material Transfer Agreement (MTA) or Data Use Agreement (DUA), as applicable, in the event that such plans arise in the future

Informações sobre medicamentos e dispositivos, documentos de estudo

Estuda um medicamento regulamentado pela FDA dos EUA

Não

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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