Skip to main content
2023 Guide to Patient Support Services

G1 Therapeutics

2023 PSS Guide

G1 Therapeutics G1 to One Patient Support Program


G1 Therapeutics offers the G1 to One patient support program to support patients who are prescribed Cosela (Table).

G1 to One

When you enroll patients in the G1 to One program, a dedicated Case Manager will help streamline the process of getting your eligible patients started on therapy with Cosela, including benefits verification, prior authorization requirements, addressing insurance-related delays, and connecting patients to financial resources. Financial assistance includes the G1 Commercial Co-pay Program and the G1 Patient Assistance Program.

To enroll your patient, visit

G1 Commercial Co-pay Program

Patients who have commercial or private insurance may be eligible to enroll in the G1 Commercial Co-pay Program if they:

  • Have been prescribed Cosela for a medically appropriate use
  • Have commercial health insurance that covers the medication cost of Cosela
  • Are not enrolled in any federal- or state-subsidized healthcare program that covers a portion of the prescription drug costs, including Medicare (such as Medicare Part D prescription drug benefit or a Medicare Advantage plan), Medicaid, TRICARE, or any other federal or state healthcare plan, including pharmaceutical assistance programs.

Click here to enroll your patient in the G1 Commercial Co-pay Program, or call 877-821-2465.

G1 Patient Assistance Program

This program is for patients who are uninsured or in financial need. To be considered for the G1 Patient Assistance Program, patient financial information is required. You can request enrollment in the G1 Patient Assistance Program on the G1 to One Enrollment Form.

TABLE G1 Therapeutics Oncology Drug

Patient support programs

Cosela (trilaciclib) for injection
To decrease the incidence of chemotherapy-induced myelosuppression in adult patients when administered prior to a platinum/etoposide-containing regimen or topotecan-containing regimen for extensive-stage small-cell lung cancer
Patient support programs

Report Broken Links

Have you encountered a problem with a URL (link) on this page not loading correctly or is displaying an error message?

Help us fix it! Report broken links here.

Report Broken Links

Report Broken Links

*OPM Webpage
Please copy the URL (link) of the OPM webpage you are currently on.
*Broken Link
Please copy the URL (link) to the external webpage that is not displaying content correctly.
Errors include, but are not limited to:
  • "This site can’t be reached"
  • "Hmm. We’re having trouble finding that site."
  • "Hmmm… can't reach this page"
  • "404 Error: Page not found"