NCT03333031

A Study of HS-196, an HSP90 Inhibitor-linked NIR Probe for Solid Malignancies

A Phase I Study of HS-196, an HSP90 Inhibitor-linked Near Infrared Probe for Detection of Solid Malignancies

• Status: Terminated
• Phase: Phase 1
• Study type: Interventional
• Enrollment: 7 (actual)
• Sponsor: Herbert Lyerly · Academic / Other
• Sex: All
• Age: 18 Years – 99 Years
• Healthy volunteers: Not accepted

Summary

HS-196 is near infrared red (NIR)-tethered HSP90 inhibitor for clinical imaging of selective tumor binding. HS-196 consists of a HSP90 inhibitor that binds competitively to the Hsp90 ATP binding domain connected by a linker to a contrast agent (near infrared (NIR) dye) that can be used for imaging. HS-196 can freely enter tumor cells to selectively bind Hsp90. Due to the the NIR dye, HS-196 accumulation in the malignant cells allows for specific visualization of tumors within the body.

Detailed description

The product to be tested under this IND, HS-196, is a tumor imaging agent. Hsp90 (heat shock protein 90) is a chaperone protein that aids in the folding, stabilization, and degradation of cellular proteins and is found in virtually all living organisms. Cancer cells in particular have high expression of Hsp90. Hsp90 has three structural domains including an N-terminal domain that contains an ATP binding site. Small molecule inhibitors of HSP90 (Hsp90i) can selectively and competitively to the Hsp90 ATP binding domain. HS-196 consists of a HSP90 inhibitor that binds competitively to the Hsp90 ATP binding domain connected by a linker to a contrast agent (near infrared (NIR) dye) that can be used for imaging. HS-196 can freely enter tumor cells to selectively bind Hsp90. Due to the the NIR dye, HS-196 accumulation in the malignant cells allows for specific visualization of tumors within the body. HS-196 will be used in this investigation for the imaging of solid tumors The objectives of the study are to determine the dose of HS-196 that achieves the greatest ratio of tumor to normal tissue fluorescence in patients with malignancy, the safety of HS-196 administration in patients with malignancy, the average radiant efficiency in resected tumors following HS-196 administration, the localization of the HS-196 by microscopy of tumor slices, and the PK metrics of HS-196 when administered to patients.

Conditions

• Solid Tumor

Interventions

Type	Name	Description
DRUG	HS-196	HS-196 will be administered intravenously as a single dose

Timeline

• Start date: 2018-08-10
• Primary completion: 2020-10-15
• Completion: 2022-09-07
• First posted: 2017-11-06
• Last updated: 2023-06-18

Locations

1 site across 1 country: United States

Regulatory

• FDA-regulated drug study