# Our Data · Salspera

Canonical: https://salspera.com/data/

All publicly disclosed data, with sources.

All publicly disclosed data, with sources.

## Clinical · Phase 2

### Phase 2 Clinical Trial - Stage 4 Pancreatic Cancer (mPDAC)

Results published (2026)

#### Overall survival

Median 20.3 vs 11.6 months · HR 0.58 · p=0.063 (log-rank) at the published data cutoff (March 1, 2025) · p<0.05 at the latest data recording (October 2026)

Source: J Cell Immunol 2026

- Source: [Batist et al., Cancer Immunol Immunother 2026](https://pmc.ncbi.nlm.nih.gov/articles/PMC12847481/)
- Source: [J Cell Immunol 2026](https://www.scientificarchives.com/article/live-biotherapeutic-salmonella-il2-saltikva-plus-folfirinox-for-stag-metastatic-pancreatic-ductal-adenocarcinoma-implications-of-a-phase-2-clinical-trial)

#### Progression-free survival

Median 15.0 vs 5.7 months · HR 0.34 · p<0.001 (log-rank)

Source: Batist et al., Cancer Immunol Immunother 2026

- Source: [Batist et al., Cancer Immunol Immunother 2026](https://pmc.ncbi.nlm.nih.gov/articles/PMC12847481/)
- Source: [J Cell Immunol 2026](https://www.scientificarchives.com/article/live-biotherapeutic-salmonella-il2-saltikva-plus-folfirinox-for-stag-metastatic-pancreatic-ductal-adenocarcinoma-implications-of-a-phase-2-clinical-trial)

#### Response rate

70% overall response rate (95% CI 45.5–87.9%) · vs 31.6% FOLFIRINOX alone

- Source: [Batist et al., Cancer Immunol Immunother 2026](https://pmc.ncbi.nlm.nih.gov/articles/PMC12847481/)
- Source: [J Cell Immunol 2026](https://www.scientificarchives.com/article/live-biotherapeutic-salmonella-il2-saltikva-plus-folfirinox-for-stag-metastatic-pancreatic-ductal-adenocarcinoma-implications-of-a-phase-2-clinical-trial)
- Benchmark: [Conroy et al., N Engl J Med 2011](https://pubmed.ncbi.nlm.nih.gov/21561347/)

#### New metastases

80% progressed without new metastases (post-hoc)

- Source: [Batist et al., Cancer Immunol Immunother 2026](https://pmc.ncbi.nlm.nih.gov/articles/PMC12847481/)
- Source: [J Cell Immunol 2026](https://www.scientificarchives.com/article/live-biotherapeutic-salmonella-il2-saltikva-plus-folfirinox-for-stag-metastatic-pancreatic-ductal-adenocarcinoma-implications-of-a-phase-2-clinical-trial)

#### Safety

0 serious adverse events attributed to Saltikva® by the independent Data Safety Monitoring Committee

- Source: [Batist et al., Cancer Immunol Immunother 2026](https://pmc.ncbi.nlm.nih.gov/articles/PMC12847481/)
- Source: [J Cell Immunol 2026](https://www.scientificarchives.com/article/live-biotherapeutic-salmonella-il2-saltikva-plus-folfirinox-for-stag-metastatic-pancreatic-ductal-adenocarcinoma-implications-of-a-phase-2-clinical-trial)

## Clinical · Phase 1

### Safety and oral administration

- Finding: Oral Saltikva® was tested in a human Phase 1 dose-escalation safety study.
- Participants: 22
- Adverse events: No dose-limiting toxicity (single oral dose up to 10¹⁰ cfu)
- Source and methods ↗ [J Immunother 2020](https://pubmed.ncbi.nlm.nih.gov/32554977/)

## Preclinical

### Robust Cancer Kill and Cancer Prevention of New Metastases

Antitumor effectiveness across multiple murine tumor models and the companion dog trial.

- Colonization: Bacteria collect and grow inside tumors in mouse models.
- IL-2 in tumor: Active IL-2 produced within the tumor, in mouse models.
- Immune activation: NK cells activated, with CD8 T cells contributing.
- Companion dogs: In 19 pet dogs with osteosarcoma treated with amputation and doxorubicin, 22% of dogs given Saltikva® were free of metastases at one year, vs under 10% of comparison dogs ([Fritz et al., Vet Med Sci 2016;2(3):179–190](https://pubmed.ncbi.nlm.nih.gov/29067193/)).
- With chemotherapy: In a mouse breast-cancer study, adding Saltikva® let researchers cut the chemotherapy (doxorubicin) dose by 75% and still kill as many tumor cells as the full dose.

#### Single Oral Dose Is Highly Effective in Treating Primary and Recurrent Disease

Mouse liver photographs · single oral dose

- Liver following treatment by saline control
- Liver following a single oral dose of Saltikva®

Mouse livers following treatment with saline control or a single oral dose of Saltikva®, from the slide titled “Single Oral Dose Is Highly Effective in Treating Primary and Recurrent Disease”. Arrows in the original photographs mark tumor nodules and a large tumor mass in the saline-control liver, and a tumor nodule in the Saltikva® liver.

## Publications

### Peer-reviewed work behind the platform

- 2026 · A phase 2 study of orally administered live biotherapeutic salmonella-IL2 with FOLFIRINOX for stage IV pancreatic cancer · Cancer Immunol Immunother 75(2):60
- 2025 · Influence of salmonella-IL2 in combination with FOLFIRINOX on overall and progression-free survival in stage IV metastatic pancreatic cancer · J Clin Oncol 43(16_suppl):2571 (ASCO)
- 2020 · A Phase I, Dose Escalation, Single Dose Trial of Oral Attenuated Salmonella typhimurium Containing Human IL-2 in Patients With Metastatic Gastrointestinal Cancers · J Immunother 43(7):217–221

## Request the data room

For qualified investors and partners under a confidentiality agreement.
