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Loqtorzi

toripalimab-tpzi
PD-1 Inhibitor FDA Approved 2023 Coherus BioSciences/Junshi
1. Indications and Usage

Nasopharyngeal carcinoma (NPC) β€” metastatic or recurrent locally advanced, in combination with cisplatin and gemcitabine as first-line treatment; NPC β€” recurrent unresectable or metastatic following prior platinum-containing chemotherapy, as single agent.

2. Dosage and Administration

NPC first-line (with chemo): 240 mg IV every 3 weeks for up to 6 cycles with cisplatin/gemcitabine, followed by 240 mg IV q3w as maintenance for up to 24 months
NPC monotherapy: 3 mg/kg IV every 2 weeks until progression or unacceptable toxicity
Infusion time: Over 60 minutes; may reduce to 30 minutes if no prior infusion reactions

3. Dosage Forms and Strengths

Injection: 240 mg/6 mL (40 mg/mL) in single-dose vial

4. Contraindications

None listed.

5. Warnings and Precautions
  • Immune-Mediated Adverse Reactions: Pneumonitis (3.7%), colitis (0.6%), hepatitis (2.3%), endocrinopathies (hypothyroidism 13%, hyperthyroidism 3.2%, adrenal insufficiency 0.6%, type 1 DM 0.2%), nephritis (1.2%), dermatologic (2.5%), myocarditis, myositis, encephalitis, Guillain-BarrΓ©.
  • Infusion-Related Reactions: In 2.1%.
  • Embryo-Fetal Toxicity
6. Adverse Reactions
Most Common Adverse Reactions

Nausea (42%), fatigue (35%), decreased appetite (27%), constipation (24%), musculoskeletal pain (22%), anemia (21%), rash (18%), vomiting (17%), cough (16%), hypothyroidism (13%), diarrhea (13%)

Nausea
42%
Fatigue
35%
Decreased Appetite
27%
Constipation
24%
Musculoskeletal Pain
22%
Anemia
21%
Rash
18%
Vomiting
17%
Cough
16%
Hypothyroidism
13%

Consult the complete prescribing information for a comprehensive list of adverse reactions and their frequencies.

7. Drug Interactions

Consult the complete prescribing information for drug interactions, including effects on CYP enzymes, transporters, and concomitant medications that may require dose adjustments or monitoring.

8. Use in Specific Populations
Pregnancy

Consult the full prescribing information for pregnancy-related considerations.

Lactation

Refer to prescribing information for lactation guidance.

Pediatric Use

Pediatric safety and efficacy information is detailed in the full label.

Hepatic/Renal Impairment

Dose modifications for organ impairment are specified in the complete prescribing information.

12. Clinical Pharmacology
Mechanism of Action

Toripalimab is a humanized IgG4ΞΊ monoclonal antibody that binds to PD-1 and blocks its interaction with PD-L1 and PD-L2. By preventing PD-1 pathway-mediated inhibition of the immune response, toripalimab restores T-cell-mediated anti-tumor activity. It was the first anti-PD-1 antibody approved for nasopharyngeal carcinoma in the US.

Pharmacokinetics

Half-life: approximately 17 days at 240 mg q3w. Steady-state achieved by Cycle 4. Clearance: 0.24 L/day. Volume of distribution: approximately 5.3 L.

14. Clinical Studies

Clinical efficacy and safety data supporting the approval are available in the full prescribing information and from the clinical trials listed below.

Pivotal Clinical Trials
Additional Resources
FDA-Approved Tumor Types

Loqtorzi has FDA-approved indications across the following cancer types covered on PipelineEvidence:

External Resources
Important Notice: This page is intended as a navigational reference to the FDA-approved prescribing information for Loqtorzi. It does not replace the full prescribing information. Healthcare professionals should consult the complete package insert available at DailyMed before making prescribing decisions. Patient-specific factors should always guide clinical decision-making.