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Clinical Trial Details — Status: Completed

Administrative data

NCT number NCT03287375
Other study ID # PIPAC-OPC2
Secondary ID
Status Completed
Phase Phase 2
First received
Last updated
Start date December 1, 2016
Est. completion date October 1, 2022

Study information

Verified date October 2022
Source Odense University Hospital
Contact n/a
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

This is a study, where the efficacy of Pressurized IntraPeritoneal Aerosol Chemotherapy (PIPAC) against peritoneal metastases will be evaluated. Furthermore, this study will focus on the best evaluation method, where both Quality of Life questionnaires, repeated histology, cytology and MRI will be used.


Description:

Patients with peritoneal metastases (PM) will be reviewed by the interdisciplinary tumor board and included based on predefined in- and exclusion criteria. Eligible candidates with primary colorectal or appendiceal cancers will be treated with intraperitoneal oxaliplatin delivered by the PIPAC procedure, while patients with other primary cancers will be treated with a combination of cisplatin and doxorubicin. Three PIPAC treatments will be scheduled in intervals of 4-6 weeks (6-7 if combined with systemic chemotherapy). MRI and QoL questionnaires will be performed at baseline and after three PIPAC treatments. If the patients respond to the PIPAC treatment, further courses of PIPAC can be planned at the tumour board meeting. In brief, PIPAC is performed during a standard laparoscopy using two access ports, where the magnitude of PM is evaluated using the Peritoneal Carcinosis Index and the Dutch 7 regions count. Afterwards, the peritoneum is biopsied at different regions and peritoneal lavage fluid is sent for cytology. Then, chemotherapy is aerosolised within the abdomen, and after 30 minutes, the aerosol has been absorbed by the peritoneum, and the patient is closed according to departmental guidelines. The patients are expectedly discharged within 24 hours, and will after each PIPAC treatment be screened for adverse events using the CTCAE and Dindo-Clavien classification. Amendment 23-03-2020: Title Evaluation of the Peritoneal Regression Grading Score in biopsies from clips marked peritoneal metastases compared to biopsies from the element with most malignant features during repeated Pressurized IntraPeritoneal Aerosol Chemotherapy Background Patients with peritoneal metastases (PM) may be treated with protocolled Pressurized IntraPeritoneal Aerosol Chemotherapy (PIPAC) at Odense PIPAC Center by inclusion in the prospective PIPAC-OPC2 study. The response evaluation is based on repeated biopsies from clips marked PM elements retrieved during each PIPAC procedure. Histological regression is categorized by the Peritoneal Regression Grading Score (PRGS). While the PRGS is internationally validated and accepted, there is a lack of consensus regarding the biopsy strategy during subsequent PIPAC procedures. As part of the PIPAC-OPC2 protocol, we define the element with most malignant features in each of the four abdominal quadrants during the first PIPAC procedure. We clips mark these elements to be able to take biopsies from the same area during subsequent procedures, thus reducing sampling error. At other centres, the biopsies are taken from those elements that are most suspicious of malignancy at visual inspection during each PIPAC. The question is whether the histological regression in repeated biopsies from clips marked elements is influenced by fibrosis from the clips or dominated by scar tissue induced by the biopsy per se. Moreover, it is possible that PMs may progress in unmarked areas, in spite of regression in the marked areas. Hypothetically, this could lead to false positive regression, thus overestimating the histological response to PIPAC. Objective To investigate if the histologically assessed response to PIPAC is dependent on the biopsy strategy: Biopsies taken from those areas that are most suspicious of malignancy at visual inspection compared to re-biopsies of the same, clips marked PM elements during the second PIPAC procedure. Number of patients Data from 131 consecutive patients included in the PIPAC-OPC1 or PIPAC-OPC2 studies show that 67% had more than one PIPAC procedure. The mean PRGS was reduced by 0.38 points (SD 0.65) from PIPAC 1 to PIPAC 2, based on re-biopsies from clips marked elements. With an alpha of 0.05 and a power of 0.80, 25 patients are needed to test the null hypothesis of no difference between the two biopsy strategies. Patients are their own control. Methods The present study is an amendment to the PIPAC-OPC2 study. To date, 101/137 patient have been included. With an expected study termination of no more than 30% of the patients before PIPAC 2, this amendment is feasible within the framework of the PIPAC-OPC2 study. A clips marked element is defined as the area covered within two times the length of the opened jaws of a biopsy forceps. An external surgical oncologist with vast experience of staging cancer patients will define the PM element with most malignant features before retrieval of biopsies during the second PIPAC procedure. Accordingly, biopsies will then be taken from the clips marked elements and the defined element with most malignant features (potentially same element). The pathologist will be blinded during the analyses of biopsies from the second PIPAC procedure.


Recruitment information / eligibility

Status Completed
Enrollment 143
Est. completion date October 1, 2022
Est. primary completion date February 1, 2022
Accepts healthy volunteers No
Gender All
Age group 18 Years and older
Eligibility Inclusion Criteria: - Histological or cytological verified gastrointestinal-, ovarian- or primary peritoneal malignancy (based on tissue from the primary tumor and/or its metastases). - Ovarian cancer patients must be platinum resistant and have completed at least one line of chemotherapy for platinum resistant disease. - Radiological, histological or cytological evidence of PC. - No indication for CRS and HIPEC (according to National Guidelines). - Performance status 0-1. - No more than a single extra-peritoneal metastasis. - Age > 18 years. - Females must be post-menopausal - Written informed consent must be obtained according to the local Ethics Committee requirements. Exclusion Criteria: - Symptomatic small bowel obstruction (i.e. total parenteral nutrition, nasogastric tube). - Previous treatment with maximum cumulative doses of doxorubicin, daunorubicin, epirubicin, idarubicin, and/or other anthracyclines and anthracenediones. - A history of allergic reaction to platinum containing compounds or doxorubicin. - Renal impairment, defined as GFR < 40 ml/min, (Cockcroft-Gault Equation). - Myocardial insufficiency, defined as NYHA class > 2. - Impaired liver function defined as bilirubin = 1.5 x UNL (upper normal limit). - Inadequate hematological function defined as ANC = 1.5 x 109/l and platelets = 100 x109/l.

Study Design


Intervention

Drug:
PIPAC


Locations

Country Name City State
Denmark Department of Surgery, Odense University Hospital Odense

Sponsors (1)

Lead Sponsor Collaborator
Michael Bau Mortensen

Country where clinical trial is conducted

Denmark, 

References & Publications (3)

Solass W, Giger-Pabst U, Zieren J, Reymond MA. Pressurized intraperitoneal aerosol chemotherapy (PIPAC): occupational health and safety aspects. Ann Surg Oncol. 2013 Oct;20(11):3504-11. doi: 10.1245/s10434-013-3039-x. Epub 2013 Jun 14. — View Citation

Solass W, Kerb R, Mürdter T, Giger-Pabst U, Strumberg D, Tempfer C, Zieren J, Schwab M, Reymond MA. Intraperitoneal chemotherapy of peritoneal carcinomatosis using pressurized aerosol as an alternative to liquid solution: first evidence for efficacy. Ann Surg Oncol. 2014 Feb;21(2):553-9. doi: 10.1245/s10434-013-3213-1. Epub 2013 Sep 5. — View Citation

Tempfer CB, Celik I, Solass W, Buerkle B, Pabst UG, Zieren J, Strumberg D, Reymond MA. Activity of Pressurized Intraperitoneal Aerosol Chemotherapy (PIPAC) with cisplatin and doxorubicin in women with recurrent, platinum-resistant ovarian cancer: preliminary clinical experience. Gynecol Oncol. 2014 Feb;132(2):307-11. doi: 10.1016/j.ygyno.2013.11.022. Epub 2013 Nov 23. — View Citation

Outcome

Type Measure Description Time frame Safety issue
Primary Number of patients with major/complete histologic response (PRGS 1+2) peritoneal biopsies, within a series of three PIPAC procedures. Objective Tumor response will be evaluated by the Peritoneal Regression Grading Score based on repeated peritoneal biopsies during each PIPAC procedure. 4 years
Secondary Number of patients with improved Quality of Life (QoL) Based on EORTC QLQC30 questionnaire at baseline and after 3 PIPAC treatments 4 years
Secondary Number of patients where MRI is accurate in describing PM distribution and progressive/regressive disease Based on MRI of the abdomen at baseline and after 3 PIPAC treatments, it will be evaluated, whether MRI can detect PM and whether MRI can be used to evaluate progression/regression during PIPAC treatment. Comparative gold standard is laparoscopy including biopsies 4 years
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