Drug Development for Malignant and Autoimmune Diseases
Immune System Key (ISK) is engaged in the discovery and development of treatments for malignant cancers and autoimmune diseases, with a primary focus on treating patients with acute myeloid leukemia (AML), pancreatic cancer, and triple-negative breast cancer. Its assets are based on novel human-secreted peptides that were discovered by the company's founders. ISK's lead compound is Nerofe, which offers the potential to inhibit all three biological processes that support cancer progression. In phase-1 testing, researchers demonstrated induction of a strong anti-angiogenic effect and activation of anticancer immune response. In addition, in-vitro experiments indicate that Nerofe may have a strong inhibitory effect on cancer cell proliferation. Nerofe was granted orphan status by the FDA for the treatment of AML. The company has also developed a novel marker whose presence in a patient's biopsy can help predict the success of treatment with Nerofe.
| Name | Immune System Key |
|---|---|
| Slug | immune-system-key-isk |
| Former names | ThymuFight |
| Type / kind | startup |
| Crunchbase ID | immune-system-key |
| Source _id | agxzfmlsbGlzdHNpdGVyGAsSC05ld19Db21wYW55GICAgN6O2MUKDA |
| Status | active |
|---|---|
| Last update | 2026-05-17 |
| HQ country code | IL |
|---|---|
| HQ region/district | Jerusalem District |
| HQ city | Jerusalem |
| HQ address | Yossele Rosenblatt St 318, Jerusalem |
| Website | https://www.immunesk.com |
|---|---|
| https://www.linkedin.com/company/2619379 |
| Total raised | $3.7M |
|---|---|
| Current stage | Seed |
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