# Gonzalez regimen (pancreatic proteolytic enzymes)

Source: https://onco.cc/technologies/gonzalez-regimen/  
OnCo record `gonzalez-regimen` (Technology). Data CC BY-NC 4.0, attribute "Data from OnCo (onco.cc)"; commercial use needs a licence.

## TL;DR

The Gonzalez regimen combines pig pancreatic enzyme capsules, a strict diet, supplements and coffee enemas. In a controlled study in inoperable pancreatic cancer, people who chose it lived a median of 4.3 months against 14.0 months for those who chose chemotherapy, and had worse quality of life.

## Summary

The regimen, tailored by its practitioner for each person, centred on oral porcine pancreatic enzymes thought to attack cancer, plus diets, vitamin and mineral supplements, animal organ extracts and coffee enemas, up to about 150 pills a day. The NCI sponsored a randomised trial against chemotherapy in inoperable pancreatic cancer; because most eligible patients refused randomisation, it became a controlled observational study (Chabot et al., Journal of Clinical Oncology 2010). Of 55 patients, 23 chose gemcitabine-based chemotherapy and 32 chose the enzyme regimen. Median survival was 14.0 months with chemotherapy and 4.3 months with enzymes (adjusted hazard ratio for death 6.96), one-year survival was 56 per cent against 16 per cent, and quality of life was better with chemotherapy; a median is the midpoint, so half of each group lived longer than its figure. Memorial Sloan Kettering's About Herbs page on proteolytic enzymes, which also covers the commercial enzyme mixtures (Wobenzym, Wobe-Mugos) used in Germany, reports conflicting data in other cancers, a randomised trial that did not support enzymes for preventing mucositis, and meta-analyses suggesting possible benefit for radiation skin reactions that need confirming. Enzymes containing bromelain may add to the effect of anticoagulants. The NCI PDQ summary describes the earlier uncontrolled pilot study that prompted the trial.

## Fields

- Kind: Technology
- Status: negative
- Last checked: 2026-11-04
- Also known as: Gonzalez protocol; Proteolytic enzyme therapy; Wobe-Mugos; Wobenzym
- Tags: complementary; supportive-care; evidence:harm
- Principle: Proposed that pancreatic enzymes digest cancer cells and 'detoxify' the body; the controlled study found the opposite of the claimed effect on survival.
- Strengths: Was tested in a controlled study, so there is a clear answer for pancreatic cancer
- Limitations: Shorter survival and worse quality of life than chemotherapy in pancreatic cancer; About 150 pills a day and coffee enemas; Bleeding risk with anticoagulants

## Sources

- Chabot et al., pancreatic proteolytic enzyme therapy compared with gemcitabine-based chemotherapy (JCO 2010): https://doi.org/10.1200/JCO.2009.22.8429
- NCI PDQ: Gonzalez regimen: https://www.cancer.gov/about-cancer/treatment/cam/hp/gonzalez-pdq
- MSK About Herbs: Proteolytic enzymes (page last updated 2 February 2022): https://www.mskcc.org/cancer-care/integrative-medicine/herbs/proteolytic-enzymes

## Connected records

- technologies: [Alternative medicine used instead of standard treatment](https://onco.cc/technologies/alternative-medicine-instead-of-treatment/), [Di Bella multitherapy](https://onco.cc/technologies/di-bella-multitherapy/), [Gerson therapy, coffee enemas and 'detox' regimens](https://onco.cc/technologies/gerson-therapy-detox-regimens/), [Selected Vegetables and Sun's Soup](https://onco.cc/technologies/suns-soup-selected-vegetables/)
- cancers: [Pancreatic ductal adenocarcinoma](https://onco.cc/cancers/pancreatic/)
- fronts: [Diet, Exercise & Lifestyle](https://onco.cc/fronts/nutrition-lifestyle/), [Supportive Care & Survivorship](https://onco.cc/fronts/supportive-care/)
- drugs: [Gemcitabine](https://onco.cc/drugs/gemcitabine/)
- terms: [Unproven diet claims (alkaline, juice, 'anti-cancer' diets)](https://onco.cc/terms/unproven-diet-claims/)
- bottlenecks: [Misinformation and unproven therapies](https://onco.cc/bottlenecks/b-misinformation/)

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