IMMUNOPEC: Combination of neo-adjuvant Checkpoint Inhibition and Dendritic Cell Therapy (MesoPher) with Cytoreductive Surgery and Hyperthermic Intraperitoneal Chemotherapy in patients with Peritoneal Mesothelioma

2024-519626-21-00 Therapeutic exploratory (Phase II) Authorised, recruitment pending

Status Authorised, recruitment pending · 1 EU/EEA countries · 1 sites

Overview

Sponsor-declared trial summary

Phase Therapeutic exploratory (Phase II)
Status Authorised, recruitment pending
Participants planned 18
Countries 1
Sites 1

Peritoneal Mesothelioma

To assess the efficacy of (neo-)adjuvant CPI (nivolumab) and DCT (MesoPher) around CRS-HIPEC.

Key facts

Sponsor
Erasmus Universitair Medisch Centrum Rotterdam (Erasmus MC)
Participant type
Patients
Age range
18-64 years, 65+ years
Gender
Male and Female
Therapeutic area
Diseases [C] - Digestive System Diseases [C06]
Decision date (initial)
2025-04-09
Transition trial
No
Low-intervention
No
Rare-disease indication
Yes
Vulnerable population
No

Trial design

CTIS Part I — objectives, methods, condition coding

Main objective

Scope: Efficacy, Therapy, Safety

To assess the efficacy of (neo-)adjuvant CPI (nivolumab) and DCT (MesoPher) around CRS-HIPEC.

Secondary objectives 1

  1. To assess the safety, radiological response, immunological outcomes and survival outcomes.

Conditions and MedDRA coding

Peritoneal Mesothelioma

Eligibility criteria

Principal inclusion / exclusion criteria as submitted by sponsor

Inclusion criteria 7

  1. Histologically confirmed diagnosis of epithelioid peritoneal mesothelioma
  2. Patients must be at least 18 years old and must be able to give written informed consent.
  3. Fit to undergo CRS-HIPEC (as per standard of care of the treating physician/Institution)
  4. Ability to return to the study centre for adequate follow-up and vaccinations
  5. Written informed consent according to the ICH-GCP
  6. Men must be willing to use an effective contraceptive method during the study and for at least 12 months after the last study drug administration
  7. Women of childbearing potential must have a negative serum pregnancy test at screening and a negative urine pregnancy test just prior to the first study drug administration on day 1, and must be willing to use an effective contraceptive method and for at least 12 months after the last study drug administration.

Exclusion criteria 8

  1. Extra-abdominal metastatic disease
  2. Use of >10 mg of prednisolone or equivalent/day (or other immunosuppressive agents) during the past 6 weeks before the first study drug administration and throughout the study. Prophylactic usage of dexamethasone (steroids) during chemotherapy is excluded from this 6-week interval. Inhaled or topical steroids, and adrenal replacement steroid ≤10 mg daily prednisone equivalent, are permit-ted in the absence of active autoimmune disease.
  3. Subject with any known active serious infection, including human immunodeficiency virus (HIV), hepatitis B or C virus, or syphilis infection.
  4. Medical or psychological impediment to probable compliance with the protocol
  5. Serious chronic or acute illness with an unwarranted high risk for the study treatment
  6. Pregnant or lactating women
  7. An organic brain syndrome or other significant psychiatric abnormality which would comprise the study
  8. Patients with a known allergy to shellfish (may contain KLH).

Endpoints

Primary and secondary outcome measures (English text)

Primary endpoints 1

  1. The progression free survival in patients that have received neo-adjuvant and adjuvant treatment with anti-PD-1 and vaccinations of DCT (5 administrations in total or less in case of production shortage) and cytoreduction.

Secondary endpoints 5

  1. Lymphocyte infiltration and activity will be measured by TCR repetoire analysis and immune phenotyping. Lymphocyte activity will be measured by apoptosis and proliferation markers using flow cytometry.
  2. Safety will be measured in AE’s and SAE’s
  3. Radiological response will be measured using CT scans following RECIST 1.1 criteria, resulting in: progressive or stable disease and partial or complete response.
  4. PCI will be evaluated during DLS and can be compared to the PCI seen at CRS-HIPEC
  5. Overall survival will be a secondary objective to evaluate.

Investigational products

Investigational medicinal products (IMPs), comparators, placebo, auxiliary

Test 2

Autologous Dendritic Cells Loaded with Allogenic Allogeneic Lysate of Mesothelioma Cell Lines

PRD11473259 · Product

Active substance
Autologous Dendritic Cells Loaded with Allogenic Allogeneic Lysate of Mesothelioma Cell Lines
Substance synonyms
MesoPher
Pharmaceutical form
PERSONALIZED CELLULAR PRODUCT
Route of administration
INTRAVENOUS INFUSION
Max daily dose
50000000 U unit(s)
Max total dose
350000000 U unit(s)
Max treatment duration
12 Month(s)
Authorisation status
Not Authorised
ATC code
L03 — IMMUNOSTIMULANTS
MA holder
ERASMUS MC
Paediatric formulation
No
Orphan designation
Yes
Orphan designation number
EMA-OD-138-13

Nivolumab

SCP8265340 · ATC

Active substance
Nivolumab
Substance synonyms
BMS936558, ABP 206
Route of administration
INTRAVENIOUS INFUSION
Max daily dose
480 mg milligram(s)
Max total dose
1440 mg milligram(s)
Max treatment duration
8 Week(s)
Authorisation status
Authorised
ATC code
L01FF01 — NIVOLUMAB
Marketing authorisation
-
Paediatric formulation
No
Orphan designation
No
Modified vs. Marketing Authorisation
No

Sponsors and contacts

Sponsor organisations, regulatory contacts, third parties

Erasmus Universitair Medisch Centrum Rotterdam (Erasmus MC)

Sponsor organisation
Erasmus Universitair Medisch Centrum Rotterdam (Erasmus MC)
Address
Dr. Molewaterplein 40
City
Rotterdam
Postcode
3015 GD
Country
Netherlands

Scientific contact point

Organisation
Erasmus Universitair Medisch Centrum Rotterdam (Erasmus MC)
Contact name
Dr. E.V.E. Madsen

Public contact point

Organisation
Erasmus Universitair Medisch Centrum Rotterdam (Erasmus MC)
Contact name
Mitchell Emmers

Locations

1 EU/EEA country · 1 investigational sites

By country

CountryMS statusPlanned subjectsSites
Netherlands Authorised, recruitment pending 18 1
Rest of world 0

Investigational sites

Netherlands

1 site · Authorised, recruitment pending
Erasmus Universitair Medisch Centrum Rotterdam (Erasmus MC)
Surgical oncology, Wytemaweg 80, 3015 CN, Rotterdam

Results and documents

Annex IV summary of results, Annex V layperson summary, and all documents registered in CTIS for this trial

Documents 9 files

Public protocol annexes, IB summaries, regulatory submissions and post-authorisation documents registered in CTIS.

TypeTitleVersion
Protocol (for publication) D1_Protocol 2024-519626-21-00 1
Recruitment arrangements (for publication) K1_Recruitment arrangements 1
Recruitment arrangements (for publication) K1_Recruitment arrangements_TC 1
Recruitment arrangements (for publication) K2_Recruitment material for online usage NL 1
Recruitment arrangements (for publication) K2_Recruitment material for online usage NL_TC 1
Subject information and informed consent form (for publication) L1_SIS en ICF IMMUNOPEC 1
Subject information and informed consent form (for publication) L2_Nivolumab patientinformation NL 1
Summary of Product Characteristics (SmPC) (for publication) E2_SmPC Nivolumab EN 1
Synopsis of the protocol (for publication) D1_Protocol synopsis NL 2024-519626-21-00 1

Application history

2 submissions — initial application plus substantial / non-substantial modifications

#TypeCodeSubmittedReference MSConclusionDecision date
1 INITIAL IN 2024-11-21 Netherlands Acceptable with conditions
2025-04-07
2025-04-09
2 SUBSTANTIAL MODIFICATION SM-1 2026-01-06 Netherlands Acceptable
2026-04-14
2026-04-16