CorMedix · DefenCath · Aug 2022 – Mar 2026
Which manufacturer was DefenCath approved with, and what happened to the alternatives?
After the second letter CorMedix pursued three manufacturing pathways, adding Alcami and later Siegfried. It was approved in November 2023 with Rovi, the facility named in both FDA letters.
EphemerisX Research · Published · 8 source documents · 1 min read
Short answer
DefenCath was approved with finished dosage production at Rovi Pharma Industrial Services, the facility both FDA letters named. After the second letter CorMedix had added Alcami as an alternative site and later Siegfried as a back-up; by the 2025 10-K, Siegfried is qualified as an alternate and Alcami is not mentioned.
What the evidence shows
In August 2022 Alcami was to serve as an alternative manufacturing site for DefenCath
8-K · Aug 9, 2022. In March 2023 the company set out pathways. The first, the existing manufacturer and heparin supplier, potentially remains the fastest pathway to NDA resubmission and approval, provided FDA concurs that CMO 1 has remediated its compliance deficiencies
8-K · Mar 3, 2023. For the second manufacturer, data were now expected later, due to delays in completing validation
8-K · Mar 3, 2023, and the company currently intends to utilize pathway #3 as a back-up manufacturing site
8-K · Mar 3, 2023. Later that month it announced Siegfried, which it intends to utilize
8-K · Mar 30, 2023 as a back-up CMO
8-K · Mar 30, 2023.
The Type A meeting in April 2023, as the company reported it: the FDA informed CorMedix that it is in receipt of the close out report for inspectional observations received from its existing contract manufacturing organization (“CMO 1”), and NDA resubmission with CMO 1 can be done at the Company’s discretion
8-K · Apr 26, 2023. The resubmission added a 3 mL single-dose vial
8-K · Apr 26, 2023 and was accepted with a target action date of November 15, 2023
8-K · Jun 21, 2023.
In November 2023: The FDA completed a preapproval inspection for CorMedix’s primary finished dosage CMO site in September
8-K · Nov 14, 2023. The 10-K: On November 15, 2023, we announced that the FDA approved the new drug application (“NDA”) for DefenCath
10-K · Mar 5, 2026.
Which site: The Company received FDA approval of DefenCath with finished dosage production from its European based CMO Rovi Pharma Industrial Services
10-K · Mar 5, 2026. That is the facility the first letter named in 2021: provided by Rovi Pharma Industrial Services S.A. (FEI 3016688535) manufacturing facility
FDA · Feb 26, 2021 · p. 8. The 10-K adds that the company also qualified Siegfried Hameln as an alternate finished dosage manufacturing site
10-K · Mar 5, 2026. The 2025 10-K does not mention Alcami. 10-K · searched
Follow the thread
- What did the FDA's first letter on DefenCath require?Rovi: named in 2021, approved with in 2023
- How did CorMedix describe the FDA's second letter?Alcami as an alternative site
- How did a heparin supplier's warning letter for another product hold up DefenCath?The April 2023 resubmission plan
This investigation connects to
- What happens after a second FDA Complete Response Letter?Cross-investigation · Divergent outcome · with Aldeyra Therapeutics, Outlook Therapeutics, Replimune, Verrica Pharmaceuticals
- What is a Class 1 or Class 2 resubmission, and how did each play out in these records?Cross-investigation · Regulatory pathway · with Aldeyra Therapeutics, Outlook Therapeutics, Replimune
- What happens when an FDA letter turns on a contract manufacturer, not the drug?Cross-investigation · Shared concern · with Verrica Pharmaceuticals
- What did “no efficacy or safety issues” cover in these FDA letter announcements?Cross-investigation · Shared concern · with Replimune, Verrica Pharmaceuticals
The documents, by date
The passages quoted
FDA Complete Response Letter, February 26, 2021 · page 8
During a review of records requested under Federal Food, Drug, and Cosmetic Act section 704(a)(4), provided by Rovi Pharma Industrial Services S.A. (FEI 3016688535) manufacturing facility, the FDA noted objectionable conditions. These objectionable conditions will be conveyed to the representative of the facility within 10 business days of issuance of this Complete Response letter. Satisfactory resolution of these objectionable conditions is required (e.g., preapproval inspection and/or adequate facility responses addressing these conditions) before this application may be approved.Open at the source →
CorMedix Form 8-K, filed August 9, 2022
has entered into an agreement with Alcami Corporation, a US based contract manufacturer with proven capabilities for manufacturing commercial sterile parenteral drug products, which will serve as an alternative manufacturing site for DefenCath. The Company has been working with Alcami over the past several months to transfer the manufacturing process for DefenCath into an Alcami site, and CorMedix expects to be able to submit a supplement to its NDA application around the end of the first quarter of 2023.Open at the source →
CorMedix Form 8-K, filed March 3, 2023
CMO 2 + API 2: The Company previously guided to the availability of data for submission from an alternate CMO in the first half of 2023; however, due to delays in completing validation, these data are expected to be available by the end of the 3 rd quarter of 2023. The Company remains focused on pathways #1 and #2 as its primary strategy, and currently intends to utilize pathway #3 as a back-up manufacturing site.Open at the source →
CorMedix Form 8-K, filed March 3, 2023
CMO 1 + API 1: This scenario potentially remains the fastest pathway to NDA resubmission and approval, provided FDA concurs that CMO 1 has remediated its compliance deficiencies and that the DMF for API 1 can be utilized prior to full resolution of the existing warning letter. CorMedix hopes to obtain guidance from FDA on these two important issues in a Type A meeting. The Company intends to resubmit the application as soon as possible following FDA’s positive guidance on these two issues. Given that no new data would be contained in this resubmission, provided no additional site inspections are required, the Company believes this may be classified as a Class 1 submission with a 60-day review.Open at the source →
CorMedix Form 8-K, filed March 30, 2023
CorMedix announced an agreement to validate manufacturing of DefenCath at Siegfried AG’s site in Hameln, Germany, which has previously been inspected by FDA. The Hameln site previously manufactured Neutrolin®, which was sold in Europe as a medical device. The Company intends to utilize Siegfried as a back-up CMO.Open at the source →
CorMedix Form 8-K, filed April 26, 2023
Based on guidance from FDA, CorMedix will resubmit the NDA with manufacturing data generated at CMO 1 and utilizing both the existing source of heparin API (“API 1”) as well as a new supplier of Heparin API (“API 2”). The Company has completed the validation of the manufacturing process using API 2, and believes all batches have met product specifications. Data for submission are currently available and resubmission is targeted for mid-May following receipt of final Type A meeting minutes. As part of validation of manufacturing with this API, the Company will be adding a 3 mL single-dose vial to its 5 mL commercial presentation to meet market preferences and demand. As the submission will contain new manufacturing information, the Company expects it to be classified as a Class 2 resubmission with a 6-month review.Open at the source →
CorMedix Form 8-K, filed April 26, 2023
At the Type A meeting, the FDA informed CorMedix that it is in receipt of the close out report for inspectional observations received from its existing contract manufacturing organization (“CMO 1”), and NDA resubmission with CMO 1 can be done at the Company’s discretion. The FDA may conduct a pre-approval inspection at the facility as part of the NDA review process.Open at the source →
CorMedix Form 8-K, filed June 21, 2023
today announced that the resubmission of the New Drug Application (NDA) for DefenCath has been accepted for filing by the U.S. Food and Drug Administration (FDA). The Agency considers the resubmission as a complete, Class 2 response with a six-month review, and has assigned a Prescription Drug User Fee Act (PDUFA) target action date of November 15, 2023.Open at the source →
CorMedix Form 8-K, filed November 14, 2023
The FDA completed a preapproval inspection for CorMedix’s primary finished dosage CMO site in September and the Company is pleased with the outcome. In addition, the FDA has also conducted preapproval inspections for DefenCath at suppliers of active pharmaceutical ingredients, contract laboratories involved in testing of product specifications and packaging facilities, and CorMedix is not aware of any outstanding deficiencies or review issues at this time.Open at the source →
CorMedix Form 10-K, filed March 5, 2026
On November 15, 2023, we announced that the FDA approved the new drug application (“NDA”) for DefenCath, an antimicrobial catheter lock solution (“CLS”) (a formulation of taurolidine 13.5 mg/mL, and heparin 1000 USP Units/mL) indicated to reduce the incidence of catheter-related bloodstream infections (“CRBSI”) in adult patients with kidney failure receiving chronic hemodialysis through a central venous catheter (“CVC”). We launched DefenCath commercially in April 2024 in the inpatient setting and July 2024 in the outpatient hemodialysis setting, and it is the largest contributor to our net sales.Open at the source →
CorMedix Form 10-K, filed March 5, 2026
The Company received FDA approval of DefenCath with finished dosage production from its European based CMO Rovi Pharma Industrial Services. In addition, the Company also qualified Siegfried Hameln as an alternate finished dosage manufacturing site and is in the process of scaling production at the facility.Open at the source →