Atezolizumab vs Upadacitinib

## Atezolizumab vs Upadacitinib: Overview

This comparison examines the pharmacological differences between **Atezolizumab** and **Upadacitinib**.

## Mechanism of Action

**Atezolizumab**: Fully human anti-PD-L1 IgG1 monoclonal antibody blocking PD-L1 interaction with PD-1 and B7.1.

**Upadacitinib**: Selective JAK1 inhibitor reducing signaling from cytokines implicated in autoimmune diseases.

## Pharmacokinetics

**Half-life**: Atezolizumab — 27 days; Upadacitinib — 9-14 hours.

## Chemical Properties

**Molecular Formula**: Atezolizumab — N/A; Upadacitinib — C17H19F3N6O.

**Molecular Weight**: Atezolizumab — N/A; Upadacitinib — 380.3700 g/mol.

**Type**: Atezolizumab — Antibody; Upadacitinib — Small molecule.