TheraRadar
Data updated: May 26, 2026

COSELA (trilaciclib dihydrochloride)

Genetic Support
First-in-Class Breakthrough Therapy Priority Review
Oncology Approved 2021-02-12

Cosela helps patients with extensive-stage small cell lung cancer by reducing the occurrence of bone marrow suppression caused by chemotherapy. It is used for adults before they receive specific chemotherapy regimens, such as topotecan or a platinum and etoposide combination. This medication helps protect the patient's blood cell counts during their cancer treatment cycle.

Source: FDA Label • PHARMACOSMOS

How COSELA Works

This drug works by temporarily blocking CDK 4 and 6, which are proteins that hematopoietic stem and progenitor cells in the bone marrow need to multiply. By inhibiting these proteins, the medication helps protect the cells that produce essential neutrophils, red blood cells, and platelets from the effects of chemotherapy.

1
Indication
--
Phase 3 Trials
1
Priority Reviews
5
Years on Market

Details

Status
Prescription
First Approved
2021-02-12
Patent Cliff
2040

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Routes
INTRAVENOUS
Dosage Forms
POWDER

Companies

Active Ingredient: TRILACICLIB DIHYDROCHLORIDE

COSELA Approval History

2022
2023
2024
2025
2026
Original
New Indication
New Form
Label Update
4 FDA actions from 2021 to 2025
Aug 2025 SUPPL
Label · Labeling
Aug 2023 SUPPL
Label · Labeling
Apr 2023 SUPPL
Label · Labeling

What COSELA Treats

2 indications

COSELA is approved for 2 conditions since its original approval in 2021. These indications span multiple therapeutic areas including oncology, immunology, and more.

  • Myelosuppression
  • Small Cell Lung Cancer
Source: FDA Label

COSELA Target & Pathway

Pro

Target

CDK4 (Cyclin Dependent Kinase 4) Cell Cycle Kinase

COSELA Competitive Set

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Three rings of competition based on shared molecular targets and treated indications.

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Filters applied: drops same-active-ingredient (505(b)(2) reformulations), route-mismatch (topical vs systemic), and cross-therapeutic-area matches in same-indication rings.

Drugs Similar to COSELA

3 of 9

FDA-approved drugs for similar conditions. Compare mechanisms and indications to understand treatment alternatives.

AVOPEF
ETOPOSIDE
1 shared
AVYXA HOLDINGS
Shared indications:
Small Cell Lung Cancer
EPOGEN/PROCRIT
EPOETIN ALFA
1 shared
Amgen
Shared indications:
Myelosuppression
ETOPOPHOS PRESERVATIVE FREE
ETOPOSIDE PHOSPHATE
1 shared
CHEPLAPHARM
Shared indications:
Small Cell Lung Cancer
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Active Pipeline

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Key Completed Trials

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Completed studies with published results, ranked by significance

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Trial Timeline

Full development history with FDA approval milestones

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Understanding FDA Approval Types
Count Type What it means
- ORIG Original approval - drug first enters market
- SUPPL - Efficacy New indication (new disease/condition approved)
- SUPPL - Labeling Label text changes (warnings, dosing updates)
- SUPPL - Manufacturing Production changes (new facility)
- SUPPL - Chemistry Formulation changes (new dosage strength)

Green lines in the timeline show ORIG and Efficacy approvals - the clinically meaningful milestones.

COSELA FDA Label Details

Indications & Usage

FDA Label (PDF)

COSELA is indicated for the treatment of Myelosuppression; Small Cell Lung Cancer.

View full patent landscape →
14 OB patents · 5 families · 250 international docs across 27 countries

COSELA Patents & Exclusivity

Latest Patent: Nov 2040
Exclusivity: Feb 2026

Patents (14 active)

US12168666 Expires Nov 13, 2040
US11529352 Expires Jul 23, 2039
US12527798 Expires Dec 5, 2037
US8598186 Expires Dec 30, 2034
US9487530 Expires Mar 14, 2034
US10085992 Expires Mar 14, 2034
US11717523 Expires Mar 14, 2034
US10966984 Expires Mar 14, 2034
US11040042 Expires Oct 25, 2031
US10189850 Expires Oct 25, 2031
US10189849 Expires Oct 25, 2031
US10927120 Expires Oct 25, 2031
US9957276 Expires Oct 25, 2031
US8598197 Expires Oct 25, 2031

Exclusivity

NCE Until Feb 2026
Source: FDA Orange Book

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Revenue Insights

  • Quarterly revenue tracking
  • Historical trend analysis

Patent Timeline

  • Cliff: 2040
  • 17 active patents

Trial Analysis

  • Clinical trial tracking
  • Development stage analysis

Competitive Landscape

  • 9 similar drugs
  • Same target/indication analysis
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Data Sources

Data sourced from official FDA and NIH databases. Click links to verify on original sources.