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

28 settembre 2026 aggiornato da: 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.

Panoramica dello studio

Stato

Non ancora reclutamento

Condizioni

Intervento / Trattamento

Descrizione dettagliata

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 di studio

Interventistico

Iscrizione (Stimato)

74

Fase

  • Fase 2

Contatti e Sedi

Questa sezione fornisce i recapiti di coloro che conducono lo studio e informazioni su dove viene condotto lo studio.

Contatto studio

Backup dei contatti dello studio

Criteri di partecipazione

I ricercatori cercano persone che corrispondano a una certa descrizione, chiamata criteri di ammissibilità. Alcuni esempi di questi criteri sono le condizioni generali di salute di una persona o trattamenti precedenti.

Criteri di ammissibilità

Età idonea allo studio

Da 18 anni a 80 anni (Adulto, Adulto più anziano)

Accetta volontari sani

No

Sessi ammissibili allo studio

Tutto

Descrizione

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

Piano di studio

Questa sezione fornisce i dettagli del piano di studio, compreso il modo in cui lo studio è progettato e ciò che lo studio sta misurando.

Come è strutturato lo studio?

Dettagli di progettazione

  • Scopo principale: Trattamento
  • Assegnazione: Randomizzato
  • Modello interventistico: Assegnazione parallela
  • Mascheramento: Nessuno (etichetta aperta)

Armi e interventi

Gruppo di partecipanti / Arm
Intervento / Trattamento
Sperimentale: Paricalcitol Arm

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

Oral, 2 mcg once daily for 12 weeks

Sperimentale: Pirfenidone Arm

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

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

Cosa sta misurando lo studio?

Misure di risultato primarie

Misura del risultato
Misura Descrizione
Lasso di tempo
Paricalcitol Efficacy
Lasso di tempo: 12 weeks from treatment initiation

Proportion of patients achieving a clinicopathologic response (CPR)

12 weeks from treatment initiation
Pirfenidone Efficacy
Lasso di tempo: 12 weeks from treatment initiation

Proportion of patients achieving a clinicopathologic response (CPR)

12 weeks from treatment initiation

Misure di risultato secondarie

Misura del risultato
Misura Descrizione
Lasso di tempo
Severity of Treatment-Emergent Adverse Events for Paricalcitol [Safety]
Lasso di tempo: 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]
Lasso di tempo: 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
Lasso di tempo: 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]
Lasso di tempo: 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]
Lasso di tempo: 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]
Lasso di tempo: 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]
Lasso di tempo: 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]
Lasso di tempo: 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]
Lasso di tempo: 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]
Lasso di tempo: 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]
Lasso di tempo: 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]
Lasso di tempo: 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]
Lasso di tempo: 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]
Lasso di tempo: 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]
Lasso di tempo: 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]
Lasso di tempo: 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]
Lasso di tempo: 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]
Lasso di tempo: 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

Collaboratori e investigatori

Qui è dove troverai le persone e le organizzazioni coinvolte in questo studio.

Sponsor

Investigatori

  • Investigatore principale: Patrick Wagner, AHN Health Network

Studiare le date dei record

Queste date tengono traccia dell'avanzamento della registrazione dello studio e dell'invio dei risultati di sintesi a ClinicalTrials.gov. I record degli studi e i risultati riportati vengono esaminati dalla National Library of Medicine (NLM) per assicurarsi che soddisfino specifici standard di controllo della qualità prima di essere pubblicati sul sito Web pubblico.

Studia le date principali

Inizio studio (Stimato)

1 settembre 2026

Completamento primario (Stimato)

1 settembre 2030

Completamento dello studio (Stimato)

1 novembre 2030

Date di iscrizione allo studio

Primo inviato

16 settembre 2026

Primo inviato che soddisfa i criteri di controllo qualità

28 settembre 2026

Primo Inserito (Effettivo)

5 ottobre 2026

Aggiornamenti dei record di studio

Ultimo aggiornamento pubblicato (Effettivo)

5 ottobre 2026

Ultimo aggiornamento inviato che soddisfa i criteri QC

28 settembre 2026

Ultimo verificato

1 settembre 2026

Maggiori informazioni

Termini relativi a questo studio

Altri numeri di identificazione dello studio

  • 2026-077

Piano per i dati dei singoli partecipanti (IPD)

Hai intenzione di condividere i dati dei singoli partecipanti (IPD)?

NO

Descrizione del piano 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

Informazioni su farmaci e dispositivi, documenti di studio

Studia un prodotto farmaceutico regolamentato dalla FDA degli Stati Uniti

No

Studia un dispositivo regolamentato dalla FDA degli Stati Uniti

No

prodotto fabbricato ed esportato dagli Stati Uniti

No

Queste informazioni sono state recuperate direttamente dal sito web clinicaltrials.gov senza alcuna modifica. In caso di richieste di modifica, rimozione o aggiornamento dei dettagli dello studio, contattare register@clinicaltrials.gov. Non appena verrà implementata una modifica su clinicaltrials.gov, questa verrà aggiornata automaticamente anche sul nostro sito web .