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

28 septembre 2026 mis à jour par: 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.

Aperçu de l'étude

Statut

Pas encore de recrutement

Les conditions

Intervention / Traitement

Description détaillée

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.

Type d'étude

Interventionnel

Inscription (Estimé)

74

Phase

  • Phase 2

Contacts et emplacements

Cette section fournit les coordonnées de ceux qui mènent l'étude et des informations sur le lieu où cette étude est menée.

Coordonnées de l'étude

Sauvegarde des contacts de l'étude

Critères de participation

Les chercheurs recherchent des personnes qui correspondent à une certaine description, appelée critères d'éligibilité. Certains exemples de ces critères sont l'état de santé général d'une personne ou des traitements antérieurs.

Critère d'éligibilité

Âges éligibles pour étudier

18 ans à 80 ans (Adulte, Adulte plus âgé)

Accepte les volontaires sains

Non

Sexes éligibles pour l'étude

Tout

La description

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

Plan d'étude

Cette section fournit des détails sur le plan d'étude, y compris la façon dont l'étude est conçue et ce que l'étude mesure.

Comment l'étude est-elle conçue ?

Détails de conception

  • Objectif principal: Traitement
  • Répartition: Randomisé
  • Modèle interventionnel: Affectation parallèle
  • Masquage: Aucun (étiquette ouverte)

Armes et Interventions

Groupe de participants / Bras
Intervention / Traitement
Expérimental: Paricalcitol Arm

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

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

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

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

Que mesure l'étude ?

Principaux critères de jugement

Mesure des résultats
Description de la mesure
Délai
Paricalcitol Efficacy
Délai: 12 weeks from treatment initiation

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

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

Mesures de résultats secondaires

Mesure des résultats
Description de la mesure
Délai
Severity of Treatment-Emergent Adverse Events for Paricalcitol [Safety]
Délai: 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]
Délai: 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
Délai: 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]
Délai: 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]
Délai: 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]
Délai: 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]
Délai: 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]
Délai: 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]
Délai: 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]
Délai: 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]
Délai: 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]
Délai: 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]
Délai: 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]
Délai: 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]
Délai: 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]
Délai: 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]
Délai: 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]
Délai: 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

Collaborateurs et enquêteurs

C'est ici que vous trouverez les personnes et les organisations impliquées dans cette étude.

Parrainer

Patrick Wagner, MD, FACS

Les enquêteurs

  • Chercheur principal: Patrick Wagner, AHN Health Network

Dates d'enregistrement des études

Ces dates suivent la progression des dossiers d'étude et des soumissions de résultats sommaires à ClinicalTrials.gov. Les dossiers d'étude et les résultats rapportés sont examinés par la Bibliothèque nationale de médecine (NLM) pour s'assurer qu'ils répondent à des normes de contrôle de qualité spécifiques avant d'être publiés sur le site Web public.

Dates principales de l'étude

Début de l'étude (Estimé)

1 septembre 2026

Achèvement primaire (Estimé)

1 septembre 2030

Achèvement de l'étude (Estimé)

1 novembre 2030

Dates d'inscription aux études

Première soumission

16 septembre 2026

Première soumission répondant aux critères de contrôle qualité

28 septembre 2026

Première publication (Réel)

5 octobre 2026

Mises à jour des dossiers d'étude

Dernière mise à jour publiée (Réel)

5 octobre 2026

Dernière mise à jour soumise répondant aux critères de contrôle qualité

28 septembre 2026

Dernière vérification

1 septembre 2026

Plus d'information

Termes liés à cette étude

Mots clés

Termes MeSH pertinents supplémentaires

Autres numéros d'identification d'étude

  • 2026-077

Plan pour les données individuelles des participants (IPD)

Prévoyez-vous de partager les données individuelles des participants (DPI) ?

NON

Description du régime 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

Informations sur les médicaments et les dispositifs, documents d'étude

Étudie un produit pharmaceutique réglementé par la FDA américaine

Non

Étudie un produit d'appareil réglementé par la FDA américaine

Non

produit fabriqué et exporté des États-Unis.

Non

Ces informations ont été extraites directement du site Web clinicaltrials.gov sans aucune modification. Si vous avez des demandes de modification, de suppression ou de mise à jour des détails de votre étude, veuillez contacter register@clinicaltrials.gov. Dès qu'un changement est mis en œuvre sur clinicaltrials.gov, il sera également mis à jour automatiquement sur notre site Web .

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