- Company
- Alvotech USA Inc.
- Product
- AVT06
- Application
- BLA 761435
- Letter date
- FDA file
- CRL_BLA761435_20251124.pdf
New to these? What a complete response letter means, and what the company has to do next.
Other letters to Alvotech USA Inc.
The letter
As published in FDA’s complete response letter transparency release (export 2026-08-26). The text is machine-read from FDA’s PDF, so spacing and spelling errors are artifacts of that process; (b) (4) marks FDA’s own redactions.
BLA 761435 COMPLETE RESPONSE
Alvotech USA Inc.
c/o Cencora Global Consulting Service
Attention: Anusha Kesireddy Manager, Regulatory Affairs
1 West 1st Avenue
Conshohocken, PA 19428
Dear Anusha Kesireddy:
Please refer to your biologics license application (BLA) ee,
for AVT06.
We have completed our review of this application, as amended, and have determined that we cannot approve this application in its present form. We have described our reasons for this action below and, where possible, our recommendations to address these issues.
FACILITY INSPECTIONS 1. Following pre-approval/pre-license inspection of , listed in this application, FDA conveyed deficiencies to the
representative of the facility. The facility should provide satisfactory responses to these deficiencies to the FDA office indicated on the FDA 483 prior to your complete response to your application. Your complete response should include the date(s) of the facility's response to the FDA Form 483. The assessment of application approvability and the resolution of inspection deficiencies would be evaluated upon receipt of the complete response and may include re-inspection of the facility. Please work with the facility in resolving the related deficiencies.
(b) (4)
2. As part of the facility evaluation of Pe, , a Remote
Regulatory Assessment was performed. FDA identified deficiencies that were conveyed to the representative of the facility. The facility should provide satisfactory responses to these deficiencies to the FDA office that conducted the Remote Regulatory Assessment prior to your complete response to this letter. Your complete response should include the date(s) of the facility's correspondence(s) to address these deficiencies. FDA may need to perform an onsite PLI before this application may be approved. Please be aware that we will not initiate the PLI until your complete response is received. Please work with the facility to resolve the related deficiencies and ensure the facility is ready fora PLI.
Reference ID: 5700356
BLA 761435 Page 2
PRESCRIBING INFORMATION Submit draft labeling that is responsive to our electronic communication dated (b) (4)
Prior to resubmitting the labeling, use the SRPI checklist to correct any formatting errors to ensure conformance with the format items in regulations and guidances. In addition, submit updated content of labeling [21 CFR 601.14(b)] in structured product labeling (SPL) format as described at FDA.gov.'
To facilitate review of your submission, provide a highlighted or marked-up copy that shows all changes, as well as a clean Word version. The marked-up copy should include annotations that support any proposed changes.
Your proposed Prescribing Information (Pl) must conform to the content and format regulations found at 21 CFR 201.56(a) and (d) and 201.57. As you develop your proposed PI, we encourage you to review the labeling review resources on the Prescription Drug Labeling Resources? and Pregnancy and Lactation Labeling Final Rule? websites, which include:
e The Final Rule (Physician Labeling Rule) on the content and format of the PI for human drug and biological products
e The Final Rule (Pregnancy and Lactation Labeling Rule) on the content and format of information in the PI on pregnancy, lactation, and females and males of reproductive potential
e Regulations and related guidance documents
e Asample tool illustrating the format for Highlights and Contents, and
e The Selected Requirements for Prescribing Information (SRPI) - a checklist of important format items from labeling regulations and guidances.
e FDA's established pharmacologic class (EPC) text phrases for inclusion in the Highlights Indications and Usage heading.
e Additional resources for the PI, patient labeling, and carton/container labeling.
In addition, we encourage you to review the draft guidance for industry Labeling for Biosimilar Products.
1 http://www.fda.gov/Forlndustry/DataStandards/StructuredProductLabeling/default.htm
2 https://www.fda.gov/drugs/laws-acts-and-rules/prescription-drug-labeling-resources
3 https://www.fda.gov/drugs/labeling-information-drug-products/pregnancy-and-lactation-labeling-drugs- final-rule
U.S. Food and Drug Administration Silver Spring, MD 20993 www.fda.gov
Reference ID: 5700356
BLA 761435 Page 3
CARTON AND CONTAINER LABELING
Submit draft carton and container labeling based on our proposed revisions dated (b) (4)
PROPRIETARY NAME
Please refer to our correspondence dated, , which addresses the proposed proprietary name, |). This name was found conditionally acceptable pending approval of the application in the current review cycle. Please resubmit the proposed proprietary name when you respond to all of the application deficiencies that have been identified in this letter.
(b) (4)
SAFETY UPDATE
When you respond to the above deficiencies, include a safety update. The safety update should include data from all nonclinical and clinical studies of the product under consideration regardless of indication, dosage form, or dose level.
OTHER
Within one year after the date of this letter, you are required to resubmit or take other actions available under 21 CFR 601.3(b)). If you do not take one of these actions, we may consider your lack of response a request to withdraw the application under
21 CFR 601.3(c). You may also request an extension of time in which to resubmit the application.
A resubmission must fully address all the deficiencies listed in this letter and should be clearly marked with "RESUBMISSION' in large font, bolded type at the beginning of the cover letter of the submission. The cover letter should clearly state that you consider this resubmission a complete response to the deficiencies outlined in this letter. A partial response to this letter will not be processed as a resubmission and will not start a new review cycle.
You may request a meeting or teleconference with us to discuss what steps you need to take before the application may be approved. If you wish to have such a meeting, submit your meeting request as described in the draft guidance for industry Formal Meetings Between the FDA and Sponsors or Applicants of BsUFA Products.
The product may not be legally marketed until you have been notified in writing that this application is approved.
U.S. Food and Drug Administration Silver Spring, MD 20993 www.fda.gov
Reference ID: 5700356
BLA 761435 Page 4
If you have any questions, contact
Sincerely,
{See appended electronic signature page}
Center for Drug Evaluation and Research
U.S. Food and Drug Administration Silver Spring, MD 20993 www.fda.gov
Reference ID: 5700356
Signature Page 1 of 1
This is a representation of an electronic record that was signed electronically. Following this are manifestations of any and all electronic signatures for this electronic record.
wa 11/24/2025 03:11:25 PM
Reference ID: 5700356
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