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Intratumoral Bromelain + Acetylcysteine in Relapsed and Unresectable Pseudomyxoma Peritonei

Intratumoral Bromelain + N-acetylcysteine in Relapsed and Unresectable Pseudomyxoma Peritonei. Phase I Single-arm Trial

Status
UNKNOWN
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04982146
Enrollment
10
Registered
2021-07-29
Start date
2021-09-13
Completion date
2023-05-16
Last updated
2022-06-02

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

Conditions

Pseudomyxoma Peritonei

Keywords

pseudomyxoma peritonei, n-acetylcysteine, acetylcysteine, NAC, bromelain

Brief summary

This trial pursues studying a compassionate treatment option for patients with inoperable pseudomyxoma peritonei through percutaneous administration of bromelain + N-acetylcysteine (NAC) in order to decrease tumoral volume. Secondary endpoints are the decrease of ascites, compressive symptoms and pain through the dilution of mucins, which would better intestinal blockage.

Interventions

0.5mg per mL of total tumor volume calculated, administered percutaneously

DRUGN-Acetylcysteine

20mg per mL of total tumor volume calculated, administered percutaneously

Sponsors

Maimónides Biomedical Research Institute of Córdoba
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Intervention model description

Single-arm experimental analytical study

Eligibility

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

Inclusion criteria

* Pseudomyxoma peritonei diagnosis through imaging tests and/or histological studies * Pseudomyxoma peritonei relapse in abdominal area in patients who comply inoperability criteria, which are: At least two HIPEC operations or major abdominal surgery (PSS \> 3). Patients with acute morbidities (ASA score IV) * ECOG 0-2 * Age ≥ 18 * Signs informed consent

Exclusion criteria

* Candidates to other potentially healing treatments * Allergy to bromelains (pineapple), N-Acetylcysteine or possible cross-reactive allergy (eggs, sulphate. latex, carrots, celery, wheat...) * Non-manageable coagulation alterations * No possibility of intraabdominal drainage catheter * Acute respiratory pathology (asthma, COPD), acute hepatic, cardiopathic or kidney pathology * Allergy to any substance that might cause crossed reactivity to bromelain * Unwillingness to participate in this clinical trial

Design outcomes

Primary

MeasureTime frameDescription
Tumoral Mass ChangeDay 3, Day 7 (if it applies),1 month and 12 months after treatment is finished.Tumoral mass change calculated through CT Scan or Magnetic Resonance categorized regarding the biggest diameter per abdominal region

Secondary

MeasureTime frameDescription
Symptoms improvementBasal visit, 1 month and 12 months after treatment.Symptoms progression evaluated through QLQ-C30 questionnaire (life quality questionnaire)
TTP (Time to tumor progression)Period of 12 months after treatment.Period of time free of tumor progression.
Overall survivalPeriod of 12 months after treatment.Time until death from any cause
Tumoral DNA diminution in biological samplesBasal visit, all treatment visits and 12 months after treatment is finished.Diminution of tumoral DNA amount found in mucin and blood samples

Countries

Spain

Outcome results

None listed

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