OnCo
ideasIdea

Mechanically pulverise one tumour with ultrasound to wake the immune system

Focused ultrasound can break a tumour apart without heat or cuts, leaving debris the immune system can learn from. Doing that to one tumour may help treat the rest.

Histotripsy destroys tissue mechanically through cavitation, is now approved for liver tumour destruction, and leaves antigenic debris and intact immune signals rather than the coagulated protein produced by thermal ablation. Mouse studies show abscopal effects and increased T-cell priming, and combination with checkpoint blockade is being explored in early trials.

Hypothesis
Histotripsy of a single index lesion plus checkpoint blockade produces higher rates of response in non-treated lesions than checkpoint blockade alone, with increased tumour-specific T-cell clones in blood.
Rationale
Unlike thermal ablation or radiotherapy, mechanical disruption preserves antigen structure and releases intact damage signals, giving a mechanistic reason to expect stronger priming. The device is already approved for liver lesions, so access is straightforward.
What would test it
A randomised phase 2 in liver-metastatic disease comparing checkpoint blockade with or without histotripsy of one lesion, with response in untreated lesions and blood T-cell receptor expansion as endpoints.
Maturity
early clinical
Who has to act
clinic
Cost to try
Medium ($1M to $50M)
Years to first evidence
6
Bottlenecks it attacks

Connected

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Pages like this

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cancers

2
Colorectal cancerHepatocellular carcinoma

technologies

4
Focused ultrasound & histotripsyImmune checkpoint inhibitorsIrreversible electroporation (NanoKnife)Thermal ablation (RFA, microwave, cryo)

companies

1
HistoSonics

terms

2
Abscopal effectImmunogenic cell death

bottlenecks

2
Cold tumours and the immunosuppressive microenvironmentSurgery and radiotherapy cure most, get least