NCT06084780

Brief Summary

The goal of this prospective phase 2 study is to assess the efficacy and safety of intestinal or multivisceral transplantation for participants with PMP not amenable to other curative-intent treatments. Participants will undergo intestinal/multivisceral transplantation. Participants will be followed for 12 months to assess efficacy and safety.

Trial Health

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Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
20

participants targeted

Target at below P25 for phase_2

Timeline
5mo left

Started Aug 2026

Shorter than P25 for phase_2

Geographic Reach
1 country

1 active site

Status
not yet recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

October 10, 2023

Completed
6 days until next milestone

First Posted

Study publicly available on registry

October 16, 2023

Completed
2.8 years until next milestone

Study Start

First participant enrolled

August 1, 2026

Expected
5 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 31, 2026

Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

December 31, 2026

Last Updated

April 9, 2026

Status Verified

April 1, 2026

Enrollment Period

5 months

First QC Date

October 10, 2023

Last Update Submit

April 8, 2026

Conditions

Keywords

Intestinal TransplantationMultivisceral TransplantationPseudomyxoma PeritoneiUnresectable Mucinous Carcinoma PeritoneiTRANSCAPE

Outcome Measures

Primary Outcomes (1)

  • Overall Rate of Survival

    To determine overall 12-month survival after intestinal or multivisceral transplantation in participants with unresectable PMP.

    12 months post operative

Secondary Outcomes (3)

  • Overall Rate of Morbidity

    90 days post operative

  • Overall Rate of Morbidity

    12 months post operative

  • Overall Rate of Mortality

    12 months post operative

Study Arms (1)

Intestinal, Multivisceral or Modified Multivisceral Transplantation

EXPERIMENTAL

Participants will undergo intestinal or modified multivisceral transplantation according to their disease extent. Participants will be followed for 12 months from the day of transplantation. Participants will undergo routine clinical follow-up according to standard protocols for the management of participants after visceral organ transplantation and standard oncological follow-up for participants with PMP.

Procedure: Intestinal, Multivisceral or Modified Multivisceral TransplantationDrug: AlemtuzumabDrug: TacrolimusDrug: Sirolimus

Interventions

A post-transplant, steroid-free immunosuppressive regimen will be utilized and will include Alemtuzumab as Antibody Induction Therapy. Participants will be administered two doses of Alemtuzumab (30 mg IV) on days 0 and 1.

Intestinal, Multivisceral or Modified Multivisceral Transplantation

A post-transplant, steroid-free immunosuppressive regimen will be utilized and will include Tacrolimus for maintenance. Participants will have Tacrolimus for the first 3 months. Dosing of Tacrolimus will depend on participant target level, starting with 0.05 mg/Kg bid.

Intestinal, Multivisceral or Modified Multivisceral Transplantation

A post-transplant, steroid-free immunosuppressive regimen will be utilized and will include Sirolimus for maintenance. Participants will have Sirolimus after 3 months of Tacrolimus. Dosing of Sirolimus will depend on participant target level, starting with 2 mg od.

Intestinal, Multivisceral or Modified Multivisceral Transplantation

Enrolled participants will enter the active transplant waiting list within one month of signing informed consent for study participation. Participants can be listed for: * Isolated small bowel transplant (SBT): transplantation of the donor small intestine * Modified multivisceral tran I lant (MMVT): transplantation of the donor pancreas and small intestine, with or without stomach * Multivisceral transplant (MVT): transplantation of the donor pancreas, small intestine, and liver, with or without stomach

Intestinal, Multivisceral or Modified Multivisceral Transplantation

Eligibility Criteria

Age18 Years - 75 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Subjects must have histologically confirmed pseudomyxoma peritonei (PMP)
  • Both low-grade mucinous carcinoma peritonei (LMCP) or high-grade mucinous carcinoma (HMCP), with or without signet ring cells as well as primary or recurrent disease, will be eligible.
  • PMP disease does not have any extra-abdominal metastases, with the exception of pulmonary involvement (nodal, parenchymal, and pleural).
  • PMP disease is extensive and not amenable to operative management, with or without liver, pancreas, stomach, or abdominal wall involvement.
  • Definition of Non-Resectable Disease-
  • Non-resectable PMP disease will be defined as the presence of at least one of the following conditions:
  • \) Extensive small bowel serosa involvement, where it is not possible to preserve at least 1.5-2 m of small bowel
  • \) Extensive infiltration of the pancreatic surface
  • \) Mesenteric involvement causing retraction
  • \) Need for complete gastric resection
  • \) Urete1ic obstruction
  • \) Liver disease with no chance to achieve R0 resection with liver remnant volume \> 30%
  • \) Recurrent disease not amenable to further resection
  • Subjects do not have any other available curative treatment options.
  • Subjects can have previous abdominal operations, including CRS+HIPEC.
  • +4 more criteria

You may not qualify if:

  • Subjects with peritoneal carcinomatous originating from an etiology other than PMP.
  • Subjects receiving any other investigational agents.
  • Subjects with uncontrolled intercurrent illness including, but not limited to, ongoing or active infection, symptomatic congestive heart failure, unstable angina pectoris, cardiac arrhythmia, or psychiatric illness/social situations that would either put participation at risk because of participation in the study, may influence the result of the study, or limit compliance with study requirements.
  • Pregnant women are excluded from this study because an intestinal transplant is a procedure that is not compatible with a viable pregnancy.
  • Subjects who are HIV-positive may be included in the study. HIV testing is required for the study as adequate HIV treatment is required prior to intestinal transplant due to the increased risk of infection following transplantation and treatment with immunosuppressive agents.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Cleveland Clinic Digestive Disease & Surgery Institute (DDSI), Case Comprehensive Cancer Center

Cleveland, Ohio, 44195, United States

Location

MeSH Terms

Conditions

Pseudomyxoma Peritonei

Interventions

AlemtuzumabTacrolimusSirolimus

Condition Hierarchy (Ancestors)

Adenocarcinoma, MucinousAdenocarcinomaCarcinomaNeoplasms, Glandular and EpithelialNeoplasms by Histologic TypeNeoplasmsNeoplasms, Cystic, Mucinous, and Serous

Intervention Hierarchy (Ancestors)

Antibodies, Monoclonal, HumanizedAntibodies, MonoclonalAntibodiesImmunoglobulinsImmunoproteinsBlood ProteinsProteinsAmino Acids, Peptides, and ProteinsSerum GlobulinsGlobulinsMacrolidesLactonesOrganic Chemicals

Study Officials

  • Masato Fujiki, MD, PhD

    Cleveland Clinic Digestive Disease & Surgery Institute (DDSI) , Case Comprehensive Cancer Center

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Masato Fujiki, MD, PhD

CONTACT

Study Design

Study Type
interventional
Phase
phase 2
Allocation
NA
Masking
NONE
Purpose
TREATMENT
Intervention Model
SINGLE GROUP
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

October 10, 2023

First Posted

October 16, 2023

Study Start (Estimated)

August 1, 2026

Primary Completion (Estimated)

December 31, 2026

Study Completion (Estimated)

December 31, 2026

Last Updated

April 9, 2026

Record last verified: 2026-04

Data Sharing

IPD Sharing
Will not share

As an investigator-initiated protocol, individual participant data will not need to be shared with any other third party. Reported results from this trial will be aggregated data.

Locations