303 Vor Therapeutics 2024.04.24 Genevieve De Manio Photography Scaled Aspect Ratio 1200 384

Our Concept

Shield the healthy cells,
attack the cancer

Our approach is based on an elegant idea: a shielded transplant that enables cancer cells to be directly targeted for destruction, potentially delaying or avoiding relapse post-transplant.

Healthy donor HSCs are first edited to remove a marker on the outside of the cells so that they can no longer be recognized by targeted therapies. After the transplant of the modified healthy donor cells, the patient may now be able to receive a targeted therapy, such as an ADC or CAR-T, to kill any remaining cancer cells and to decrease the chance that the cancer can come back because the healthy cells are now “invisible” to the targeted therapy.

Our clinical data has demonstrated that our approach has the potential to shield patients’ healthy cells and enable targeted therapies post-transplant. All patients treated with Mylotarg have demonstrated durable hematologic protection from deep cytopenias through repeat doses.

How the Trem-cel Treatment System Works

Vor Bio's Shielded Stem Cells

Patient receives stem cells (from healthy donor) that have been modified using gene editing to remove CD33 (trem-cel). The shielded stem cells engraft and rebuild the immune system.

Targeted cells with ADC and CAR-T therapy and shielded cells

A targeted therapy, such as an ADC or CAR-T, can now be used to kill any residual cancer cells. The shielded stem cells persist and remain unaffected.

Learn more about trem-cel, our investigational shielded stem cell treatment approach here:

The Science

Our approach is applying proven technologies in new ways to tackle one of medicine’s greatest challenges - how to treat and potentially cure cancer.