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Progression-free Survival After MWA Plus Durvalumab and Tremelimumab for Unresectable Locally Advanced Pancreatic Cancer

Progression-free Survival After Minimally Invasive Surgical Microwave Ablation Plus Durvalumab (MEDI4736) and Tremelimumab for Unresectable Non-metastatic Locally Advanced Pancreatic Cancer: MIMIPAC Trial

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04156087
Acronym
MIMIPAC
Enrollment
12
Registered
2019-11-07
Start date
2020-05-09
Completion date
2024-01-29
Last updated
2024-09-19

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Pancreatic Cancer Non-resectable

Brief summary

This phase-2 monocenter non-randomized prospective clinical trial evaluates the effectiveness of minimally invasive microwave ablation plus immunotherapy for unresectable non-metastatic locally advanced pancreatic cancer.

Detailed description

Research Hypothesis Does MIS-MWA combined with durvalumab (MEDI4736) plus tremelimumab and gemcitabine prolong progression-free survival in patients with unresectable non-metastatic adenocarcinoma of the pancreas? Investigational Product(s) and Reference Therapy: Combination of Durvalumab (fixed dose of 1500 mg) and Tremelimumab (fixed dose of 75 mg) will be given 2 weeks before surgery. Minimally invasive surgical microwave ablation (MIS-MWA) of the pancreatic tumor will be performed two weeks after the first dose of Durvalumab and Tremelimumab After 4 doses of Durvalumab and Tremelimumab, only Durvalumab 1500mg is provided q4w until disease progression. Systemic gemcitabine will be started 6 weeks after MIS-MWA. Gemcitabine will be given at a dose of 1000 mg /m² body surface, once a week for 3 weeks, followed with a week of rest. Objectives: Primary Objectives: Progression-free survival (PFS) Secondary Objectives: * Safety: clinical and hematological toxicity (NCI CTCAE v. 5.0) of chemotherapy and immunotherapy * Safety: number and type of postoperative complications of the MIS-MWA procedure * Length of hospital stay Tertiary Objectives Overall survival (OS)

Interventions

Combination of Durvalumab (fixed dose of 1500 mg) and Tremelimumab (fixed dose of 75 mg) will be given 2 weeks before surgery. Minimally invasive surgical microwave ablation (MIS-MWA) of the pancreatic tumor will be performed two weeks after the first dose of Durvalumab and Tremelimumab After 4 doses of Durvalumab and Tremelimumab, only Durvalumab 1500mg is provided q4w until disease progression. Systemic gemcitabine will be started 6 weeks after MIS-MWA. Gemcitabine will be given at a dose of 1000 mg /m² body surface, once a week for 3 weeks, followed with a week of rest.

DRUGTremelimumab

Combination of Durvalumab (fixed dose of 1500 mg) and Tremelimumab (fixed dose of 75 mg) will be given 2 weeks before surgery. Minimally invasive surgical microwave ablation (MIS-MWA) of the pancreatic tumor will be performed two weeks after the first dose of Durvalumab and Tremelimumab After 4 doses of Durvalumab and Tremelimumab, only Durvalumab 1500mg is provided q4w until disease progression. Systemic gemcitabine will be started 6 weeks after MIS-MWA. Gemcitabine will be given at a dose of 1000 mg /m² body surface, once a week for 3 weeks, followed with a week of rest.

DRUGGemcitabine

Combination of Durvalumab (fixed dose of 1500 mg) and Tremelimumab (fixed dose of 75 mg) will be given 2 weeks before surgery. Minimally invasive surgical microwave ablation (MIS-MWA) of the pancreatic tumor will be performed two weeks after the first dose of Durvalumab and Tremelimumab After 4 doses of Durvalumab and Tremelimumab, only Durvalumab 1500mg is provided q4w until disease progression. Systemic gemcitabine will be started 6 weeks after MIS-MWA. Gemcitabine will be given at a dose of 1000 mg /m² body surface, once a week for 3 weeks, followed with a week of rest.

PROCEDUREMinimally Invasive Surgical Microwave Ablation (MIS-MWA)

Minimally invasive surgical microwave ablation (MIS-MWA) of the pancreatic tumor will be performed two weeks after the first dose of Durvalumab and Tremelimumab

Sponsors

AstraZeneca
CollaboratorINDUSTRY
Baki Topal
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Patients with unresectable non-metastatic Locally Advanced Pancreatic Cancer (LAPC) defined according to NCCN guidelines Version 2.2017 * Histologically proven adenocarcinoma of the pancreas located in the head, body or tail * LAPC tumor greatest diameter maximum 5 cm * Male or female, age 18 years and older, ECOG PS 0-1 * Life expectancy of at least 12 weeks * Only patients who did not receive chemotherapy for their PC are allowed * Patients without distant organ metastases on conventional diagnostic imaging * Pre-operative biliary drainage for obstructive jaundice is allowed, but the type of biliary stent is standardized in all jaundiced patients * Patients fit for MIS-MWA * Able to receive Durvalumab and Tremelimumab. * Patients with good liver and renal function and with good hematology * Effective contraception for both male and female patients if applicable. Women of childbearing potential must have negative blood pregnancy test at screening visit. * Written informed consent (+ optional for TR) must be given according to ICH/GCP and national/European regulations

Exclusion criteria

* Pregnancy * Metastatic PC on conventional diagnostic imaging or staging laparoscopy * LAPC tumor greatest diameter is larger than 5 cm * Borderline or resectable PC defined according to the NCCN guidelines version 2.2017 * Systemic chemo(radio)therapy is not allowed before MIS-MWA * Major surgical procedure within 28 days prior to the first dose of investigational products * Classic contraindications for PDL and CTLA antibodies

Design outcomes

Primary

MeasureTime frameDescription
Progression-free survival (PFS)12 monthsThe study is exploratory and cannot be statistically powered for comparisons. Median progression-free survival (PFS) time is chosen as the clinically meaningful outcome. Survival estimates will be calculated using the Kaplan-Meier method. For information, the reference PFS time in patients with non-metastatic LAPC treated with gemcitabine monotherapy is about 6 months. Results will be presented descriptively.

Countries

Belgium

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026