Alex Rosen

Upstream Bio, Inc. is a clinical-stage biopharmaceutical company based in Waltham, MA, USA. The American company's lead program, upb-101, is a monoclonal antibody that inhibits the TSLP receptor, a validated target that affects various immune cells involved in common and rare diseases. Upstream Bio is leveraging its diverse roots and substantial industry experience to develop therapies that ease the burden of inflammatory and allergic diseases on patients and their loved ones. The company was founded by Eran Perry and Earn Perry, and Samantha Truex has been the CEO since 2021.

Upstream Bio, Inc. is a clinical-stage biopharmaceutical company based in Waltham, MA, USA. The American company's lead program, upb-101, is a monoclonal antibody that inhibits the TSLP receptor, a validated target that affects various immune cells involved in common and rare diseases. Upstream Bio is leveraging its diverse roots and substantial industry experience to develop therapies that ease the burden of inflammatory and allergic diseases on patients and their loved ones. The company was founded by Eran Perry and Earn Perry, and Samantha Truex has been the CEO since 2021.

Upstream Bio, Inc. is a clinical-stage biopharmaceutical company based in Waltham, MA, USA. The American company's lead program, upb-101, is a monoclonal antibody that inhibits the TSLP receptor, a validated target that affects various immune cells involved in common and rare diseases. Upstream Bio is leveraging its diverse roots and substantial industry experience to develop therapies that ease the burden of inflammatory and allergic diseases on patients and their loved ones. The company was founded by Eran Perry and Earn Perry, and Samantha Truex has been the CEO since 2021.

Upstream Bio, Inc. is a clinical-stage biopharmaceutical company based in Waltham, MA, USA. The American company's lead program, upb-101, is a monoclonal antibody that inhibits the TSLP receptor, a validated target that affects various immune cells involved in common and rare diseases. Upstream Bio is leveraging its diverse roots and substantial industry experience to develop therapies that ease the burden of inflammatory and allergic diseases on patients and their loved ones. The company was founded by Eran Perry and Earn Perry, and Samantha Truex has been the CEO since 2021.

Upstream Bio, Inc. is a clinical-stage biopharmaceutical company based in Waltham, MA, USA. The American company's lead program, upb-101, is a monoclonal antibody that inhibits the TSLP receptor, a validated target that affects various immune cells involved in common and rare diseases. Upstream Bio is leveraging its diverse roots and substantial industry experience to develop therapies that ease the burden of inflammatory and allergic diseases on patients and their loved ones. The company was founded by Eran Perry and Earn Perry, and Samantha Truex has been the CEO since 2021.