Approved Risk Evaluation and Mitigation Strategies (REMS)
Xiaflex (collagenase clostridium histolyticum)
BLA #125338
REMS last update: 10/11/2024
What is the purpose of the REMS?
- The goal of the XIAFLEX REMS is to mitigate the risks of corporal rupture (penile fracture) and other serious penile injuries associated with the use of XIAFLEX for Peyronie’s disease by:
- Training healthcare providers in how to properly administer XIAFLEX.
- Informing healthcare providers about the risks of corporal rupture (penile fracture)and other serious injuries to the penis.
- Informing healthcare providers about the need to counsel patients to communicate that risks of corporal rupture and other serious penile injuries are associated with the use of XIAFLEX in treating Peyronie’s disease and that patient adherence to post-injection instructions is important for the drug’s safety and effectiveness.
- Ensuring that XIAFLEX is dispensed only in certified pharmacies or healthcare settings for the treatment of Peyronie’s disease.
- Informing patients about the risks of corporal rupture and other serious penile injuries associated with the use of XIAFLEX in treating Peyronie’s disease and that adherence to post-injection instructions is important for the drug’s safety and effectiveness.
What do participants need to know?
Below is a general overview of the REMS for all REMS participants (e.g., patients, pharmacies, and healthcare providers). See the application holder(s) REMS Website or the approved REMS materials for more information.
View application holder(s) REMS Website

Healthcare Providers who prescribe Xiaflex for Peyronie’s disease must:
| To become certified to prescribe |
|
| Before treatment initiation (first dose) |
|
| During treatment, before each injection |
|
Patients who are prescribed Xiaflex for Peyronie’s disease:
| Before treatment initiation |
|
| Before administration |
|
Pharmacies and healthcare settings that dispense Xiaflex for Peyronie’s disease must:
| To become certified to dispense |
|
| Before dispensing |
|
| To maintain certification to dispense |
|
| To maintain certification to dispense, every 2 years |
|
| At all times |
|
Wholesalers-distributors that distribute Xiaflex must:
| To be able to distribute |
|
| At all times |
|
What materials are included in the REMS?
The REMS includes a REMS Document. In addition, the REMS includes the following materials intended for patients and healthcare providers. For a specific Medication Guide of a product in the Xiaflex REMS, see the DailyMed link(s).| Material Name | Material Name Link |
|---|---|
| Education Program/Training Guide for Healthcare Providers (PDF) | https://www.accessdata.fda.gov/drugsatfda_docs/rems/Xiaflex_2024_10_11_Education_Program_Training_Guide_for_Healthcare_Providers.pdf |
| Healthcare Provider Enrollment Form (PDF) | https://www.accessdata.fda.gov/drugsatfda_docs/rems/Xiaflex_2024_10_11_Healthcare_Provider_Enrollment_Form.pdf |
| Healthcare Setting Enrollment Form (PDF) | https://www.accessdata.fda.gov/drugsatfda_docs/rems/Xiaflex_2024_10_11_Healthcare_Setting_Enrollment_Form.pdf |
| REMS Document (PDF) | https://www.accessdata.fda.gov/drugsatfda_docs/rems/Xiaflex_2024_10_11_REMS_Document.pdf |
| REMS Full (PDF) | https://www.accessdata.fda.gov/drugsatfda_docs/rems/Xiaflex_2024_10_11_REMS_Full.pdf |
| REMS Website (PDF) | https://www.accessdata.fda.gov/drugsatfda_docs/rems/Xiaflex_2024_10_11_REMS_Website.pdf |
| Training Video (PDF) | https://www.accessdata.fda.gov/drugsatfda_docs/rems/Xiaflex_2024_10_11_Training_Video.pdf |
| What You Need To Know About Xiaflex Treatment: A Patient Guide (PDF) | https://www.accessdata.fda.gov/drugsatfda_docs/rems/Xiaflex_2024_10_11_What_You_Need_To_Know_About_Xiaflex_Treatment_A_Patient_Guide.pdf |
| Assessment Plan |
|---|
|
This webpage provides REMS assessment plan measures, metrics, and indicators for drug and biological products with a REMS. The REMS assessment plan measures, metrics, and indicators are part of the overall REMS assessment plan used by FDA to evaluate the performance of a REMS and are included in FDA approval letters. The current REMS assessment plan measures, metrics, and indicators are extracted from regulatory letters that contain REMS information, including FDA approval letters, and posted here as they become available. |
What updates have been made to the REMS?
| Date | Summary of change |
|---|---|
| 10/11/2024 | Modified to:
1) Update REMS materials due to changes in the REMS Administrator; and 2) Change the REMS website to enhance operational flow and accommodate technical capabilities of the REMS Administrator; and 3) Include editorial revisions of layout and incorporation of Endo USA, Inc. and updated Endo logo across REMS materials. |
| 11/02/2022 | Modified to:
|
| 06/09/2022 | Modified to remove the mail-in option for healthcare provider and pharmacy/healthcare setting enrollment and other minor updates due to a REMS administrator change. |
| 01/11/2022 | Modified to update the REMS materials to reflect the safety labeling changes that were recently approved on August 19, 2021 and approved labeling regarding penile hematoma. |
| 10/30/2018 | Revised to reflect minor editorial changes. |
| 09/26/2018 | Modified to revise REMS educational materials to align with safety labeling changes. |
| 07/10/2018 | Revised to reflect a change in ownership. |
| 01/25/2017 | Revised to correct a typographical error (s). |
| 11/28/2016 |
|
| 10/20/2014 |
|
| 12/06/2013 | Modified to ensure that the benefits of the drug outweigh the risk of corporal fracture (penile fracture) and other serious penile injuries by ensuring that healthcare providers who prescribe XIAFLEX (collagenase clostridium histolyticum) for Peyronie’s disease are specially certified, and that pharmacies or healthcare settings that dispense XIAFLEX (collagenase clostridium histolyticum) for Peyronie’s disease are specially certified. |
| 02/24/2012 | Modified to:
|
| 02/02/2010 | Approval of the REMS. |
Disclaimer: This webpage provides general information about REMS programs to various REMS participants (e.g., patients, pharmacies, and healthcare providers). The summary information provided herein is not comprehensive and may not include all of the information relevant to REMS participants. This webpage does not constitute a replacement, modification, or revision of the approved REMS document, including any appended REMS materials. Refer to the approved REMS document for complete information on the REMS requirements for each approved application.