Aseptic Fill Finish Manufacturing Experts

Argonaut is a leading CMO in aseptic fill finish services. With a highly experienced team leading the process, we deliver precision filling with minimal line losses, maintaining high product quality and process efficiency. Our facilities are FDA inspected, FDA registered and is ISO 13485 compliant, upholding the highest quality standards. With Annex 1-compliant filling and containment, we prioritize contamination control, risk management, and GMP excellence- ensuring your products meet regulatory expectations and achieve market approval with confidence

High Performance Aseptic Fill Finish Services

Following formulation and filtration in our dedicated segregated suites, Argonaut’s highly experienced team ensures precision filling with minimal line losses. Currently, we offer vial filling, and with the installation and qualification of our additional Annex 1-compliant filling line in Q4 2025, we will expand our capabilities to include prefilled syringes and cartridges. Our team also provides comprehensive post-filling services, including packaging, GMP-compliant storage, logistics, and distribution support.

Vial Fill Finish (Line 1)

  • Near Zero line loss
  • 100% in-line weight checks
  • 2R to 20R using RTU components
  • Up to 2,000 vials per hour
  • Batch sizes up to 20,000
  • ISO 5/Grade A conditions in Isolator
  • Segregated crimping for particulate reduction
  • Online Cap/seal printing

Vials, Syringes and Cartridges (Line 2)

  • Near Zero line loss
  • 100% in-line weight checks
  • ISO 5/Grade A conditions in Isolator
  • Online Cap/seal crimping
  • No glass to glass contact
  • EU Annex 1 compliant

  • Vials:
    • 2R to 50R
    • Up to 12,600 vials per hour,
    • Batch sizes up to 100,000
    • Segregated crimping for particulate reduction 
  • Syringes:
    • 1ml long, 1/2.25/3ml standard
    • Up to 7,200 per hour
    • Batch sizes up to 75,000 
    • Mechanical and vacuum stoppering 
  • Cartridges:
    • 3 ml, other sizes available with change parts
    • Up to 7,200 per hour
    • Batch sizes up to 75,000
    • Mechanical and vacuum stoppering 

Formulation Services for Aseptic Fill Finish​

  • Formulations up to 200 L for Line 1 and up to 800 L for Line 2 
  • Utilization of single use formulation systems (Millipore Mobius or Pall wand mixers)
  • Experience with simple and complex formulations (i.e. hygroscopic APIs, adjuvant formulations, suspensions, lipid nanoparticles)
  • Low endotoxin formulations
  • Bioburden reduction filtration
Learn more about our available services...

Drug Products We Support

Aseptic Fill Finish Services For:

  • Biologics: mAb, proteins, plasmids, enzymes, etc.
  • Small and intermediate molecules: peptides
  • Oligos: ASO, mRNA, siRNA, gRNA, etc.
  • Vaccines: adjuvanted vaccines, protein-based vaccines, multivalent vaccines
  • Diluents, adjuvants, placebo
Argonaut aseptic fill finish manufacturing

Quality Assurance & Certificates

Quality and Regulatory Services

Our commitment to quality is not just a statement; it’s a way of life at Argonaut. We have implemented a rigorous quality management system that spans every aspect of our organization, from sourcing raw materials to the final product release.

Why Choose Argonaut For Aseptic Fill Finish Services

In addition to a team which has decades of experience handling high value products, we have invested in advanced automated aseptic fill finish manufacturing equipment, personnel, and robust quality/regulatory systems. We provide our clients with:

  • Minimal product  loss
  • Speed to clinic
  • Risk mitigation that helps ensure integrity and quality of your product
  • FDA inspected facilities
  • Flexible production scheduling
  • Support for your product from clinical development to commercial 
Argonaut announcing alliance with KBI Biopharma
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Argonaut Aseptic Fill Finish Specifications

Fill Finish ServicesVials, syringes, cartridges
Capacity500-12,600 per hour
EnclosuresISO 5, Grade A Isolators
API LossNear zero line loss
Additional ServicesFormulation, packaging, terminal sterilization, cGMP storage, logistics
CertificationsFDA inspected, FDA registered, CA FDB license, ISO 13485, EU Annex 1 compliant

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Argonaut’s Bausch+Ströbel VarioSys filling line paired with a SKAN isolator utilizes the highest quality ready-to-use (RTU) vials in a variety of sizes. Using high quality primary packaging components reduces cosmetic defects and glass particulates that can occur in lower quality vials.

Argonaut utilizes pre-sterilized vials in a nest & tub configuration. A pair of robotic arms removes the adhesive lid on each tub, followed by the tub liner covering the vials. Vials are then de-nested onto the filling line to avoid human intervention and eliminate glass to glass contact.

Argonaut has carefully optimized tubing lengths and diameters to virtually eliminate line loss and dead volume, resulting in extremely high product yields.

The Bausch+Ströbel VarioSys performs 100% non-destructive in-line weight checks, resulting in maximum yield and extremely consistent fill volumes.

Filled and stoppered vials are crimped in a separate isolator compartment. This spatial segregation from the vial filling process helps avoid potential particulate intrusion due to crimping.

Environmental monitoring (EM) activities are integrated into the line to avoid operators interfacing with multiple pieces of equipment.

Argonaut Aseptic Fill Finish Manufacturing Process

Filling station in action

aseptic fill finish manufacturing

Filling and gas overlay station and stopper placement in action

Cap crimping station in action

Frequently Asked Questions

A: Argonaut offers formulation, vial, syringe and cartridge filling, finishing, labeling and analytical support for the biopharmaceutical industry. Please see our drug product manufacturing page for more information on the services and formats we support.
A: Argonaut operates a custom-designed, state-of-the-art Bausch+Ströbel VarioSys line with SKAN isolator technology. Our line utilizes Bausch+Ströbel’s ADVANCEDfill technology to maximize yield and minimize line loss. Our isolator-based filling virtually eliminates the need for human intervention.
A: Yes, our Bausch+Ströbel VarioSys filling line is paired with SKAN isolators.
A: We use ready-to-use, pre-sterilized nested ISO vials. Argonaut supports vial sizes from 2R through 30R and in Q1 2026 this will extend to 50R.
A: Our newest Bausch+Ströbel VarioSys filling line will be able to fill syringes and cartridges in Q1 2026.
A: Yes, Argonaut offers validated GMP storage at ambient, +4°C, -20°C, and -80°C. Other storage conditions are available upon request.
A: At this time we do not offer drug synthesis or production of active pharmaceutical ingredients. However, we often formulate bulk drug substance or API for our clients prior to filling.
A: Argonaut can support programs up to and including SafeBridge Category 3, which includes some antibody-drug conjugates (ADCs). Please contact us for an assessment of a specific molecule.
A: We do not offer pharmaceutical lyophilization services for injectable products at this time. Please refer to our drug products manufacturing page for a full list of our fill-finish capabilities.
A: Argonaut can support all phases of clinical manufacturing as well as scale-up, validation, and commercial production. Our team has collective experience validating and launching dozens of successful commercial products. If you are interested in working with us to progress from clinical to commercial, please contact us to learn more.
A:

CDMOs play a crucial role in ensuring the quality of the products they manufacture and maintaining compliance with applicable regulations.

To achieve this, reputable CDMOs like Argonaut implement a comprehensive approach that includes the following elements:

Quality Management System (QMS): A robust QMS is the backbone of a CDMO’s quality and compliance efforts. The QMS includes policies, procedures, and guidelines that govern every aspect of the life science and IVD manufacturing process, from raw materials sourcing to finished product release.

Compliance with Good Manufacturing Practices (GMP): CDMOs adhere to GMP guidelines and other relevant industry standards to ensure that products are consistently manufactured according to quality requirements. GMP guidelines cover various aspects of the production process, including personnel qualifications, equipment maintenance, and record-keeping.

Regulatory expertise: CDMOs employ experienced regulatory affairs professionals who are knowledgeable about local and international regulations, industry standards, and best practices. These professionals help ensure that the CDMO stays up-to-date with the latest regulatory changes and maintains compliance throughout the life science or IVD manufacturing process.

Regular audits and inspections: CDMOs undergo regular audits and inspections by both their clients and regulatory authorities to verify that they maintain compliance with applicable regulations and quality standards. These inspections help identify potential issues and ensure that corrective actions are taken promptly.

Employee training: CDMOs invest in continuous training and education for their employees to ensure that they have the necessary skills and knowledge to maintain quality and compliance. This includes training on relevant regulations, industry standards, and best practices.

Quality control and assurance: CDMOs implement rigorous quality control (QC) and quality assurance (QA) processes throughout the life science and IVD manufacturing process. QC involves testing and monitoring of raw materials, intermediate products, and finished products to ensure that they meet established specifications. QA focuses on the overall quality management system and helps identify and address potential issues before they impact product quality.

Documentation: CDMOs maintain thorough and accurate documentation of their life science and IVD manufacturing processes, quality control results, and compliance efforts. Proper documentation is essential for demonstrating compliance with regulations and facilitating audits and inspections.

Continuous improvement: CDMOs are committed to continuous improvement in their quality and compliance efforts. They regularly review their processes, systems, and performance to identify areas for improvement and implement necessary changes.

By implementing these measures, reputable CDMOs like Argonaut can ensure that they consistently deliver high-quality products while maintaining compliance with applicable regulations. Partnering with a CDMO that prioritizes quality and regulatory compliance can provide peace of mind and help minimize potential risks associated with life science or IVD manufacturing.

A: Our leadership team has extensive industry experience and has backgrounds at leading drug product manufacturers including Aji Bio-Pharma (Althea), ThermoFisher (Patheon), Vetter, Allergan, and more.
A: Argonaut has a full service analytical lab supporting for in-process, release, and stability testing. Please see our QC page for a more comprehensive description.
A:

A Contract Development Manufacturing Organization (CDMO), is a company that provides comprehensive services to biotech and pharmaceutical companies related to the development, manufacturing, and testing of drugs and other biotechnology products. CDMOs offer a wide range of services, including supply chain management, technical transfer, engineering development, first article builds, cGMP (current Good Manufacturing Practices) manufacturing, and quality and regulatory services.

There are several reasons why life science & diagnostic companies should consider working with a CDMO:

Expertise and experience: CDMOs possess specialized knowledge and expertise in the field of life science and IVD manufacturing. They are well-versed in the latest technologies, equipment, and regulatory requirements, ensuring that your product is manufactured to the highest quality standards.

Cost savings: By outsourcing life science and IVD manufacturing to a contract manufacturing organization, biotech companies can save on the costs of setting up, maintaining, and operating their own manufacturing facilities. This can free up resources that can be redirected towards research and development, allowing companies to focus on their core competencies.

Flexibility and scalability: CDMOs offer a high level of flexibility and can easily adapt to changing production needs. They can quickly scale up or down according to the client’s requirements, ensuring a seamless transition between different stages of the product lifecycle.

Risk mitigation: By working with a contract manufacturing organization, biotech companies can mitigate the risks associated with life science and IVD manufacturing, such as potential production delays or issues with regulatory compliance. CDMOs have established quality management systems and follow cGMP guidelines, ensuring that the final product meets regulatory requirements.

Faster time to market: CDMOs can help accelerate the product development process by taking care of manufacturing and related services, allowing biotech companies to focus on other aspects of bringing their product to market. This can result in faster time to market and a competitive advantage.

In summary Partnering with a CDMO can provide significant benefits to life science & diagnostic companies working with POCT (Point of Care Testing), IVD (Diagnostics) & RUO (Research Use Only) products, including cost savings, increased flexibility, risk mitigation, and faster time to market. By leveraging the expertise and resources of a CDMO like Argonaut, biotech companies can focus on their core competencies and successfully bring their products to market.