Clinical Trial Manufacturing for Injectable Drug Products

From your first product batches to phase 3 scale-up, we provide the comprehensive fill and finish services you need at every step in the development of your injectable drug candidate.Explore the flexible, high-quality, technically advanced support we provide from our dedicated clinical manufacturing sites in the US and EU.

Clinical aseptic filling
Woman holding a vial
Our difference

Specialized manufacturing expertise at every phase of your clinical trials

From supplying your in-human trials, to conducting analytical studies, to securing regulatory approvals, your manufacturing needs grow rapidly on the path from molecule to therapy. At each of those challenging steps, you need a responsive, collaborative CDMO who’s committed to meeting both critical timelines and the highest possible quality standards.

For that, look no further than the skill, experience, and cutting-edge solutions you’ll find at Vetter. We fill a wide range of clinical products in a variety of primary containers, with flexible processes and supporting services that scale with your product’s development.

Discover our clinical manufacturing services

Why we’re a leading clinical manufacturing partner

Trusted performance icon

Trusted performance

Our global team has a proven commitment to quality, efficiency, and customer success.

Molecule icon

API protection

We handle your valuable drug substance with regulatory and quality safeguards at every step.

vial and syringe icon

Customized outputs

We tailor clinical production to your needs, from a few hundred Phase 1 units to large Phase 3 batches.

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Decades of experience

We’ve built deep knowledge and expertise in every phase of the injectable product development cycle.

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Optimized scale-up

Our processes and facilities are designed for efficient transfer to late-phase/commercial production.

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Accelerated time-to-market

Our services can help expedite your product’s path to market – and to patients who need your clinical breakthrough.

Capabilities

Our clinical aseptic filling services

With Vetter as your partner, our skilled project managers will guide you through key fill and finish processes across your product’s development cycle.

Our clinical manufacturing services include:

  • Material preparation

    We prepare the required materials in accordance with the Process Development Specification (PDS) jointly defined with our customers, so that the downstream steps — thawing, compounding, filling, visual inspection and, where applicable, lyophilization — can be accomplished as intended.

    For early clinical runs filled in our clinical oder development sites, we use 100% single use product contact materials to support speed and flexibility.

    Material preparation
  • Analytical testing

    Advance with confidence through end‑to‑end cGMP analytics that support every clinical fill‑finish step—backed by structured method transfer, in‑process studies, and highly experienced laboratories.

    • Method transfer: Structured method transfers and analytical laboratory qualification (aligned with USP <1010>, <1224>, <1226>); 
      In-process control, ID and release testing: Built on scientifically based sample planning with defined specifications/acceptance criteria. Analytical samples are taken throughout the manufacturing process from early clinical development to commercial.
    • Development support: Non-GMP/GMP studies (filtration, pump & fill accuracy, lyophilization cycles, siliconization; physico-chemical methods and particulate matter), along stability sample storage & analysis, backed by specialized, state of the art analytical laboratories.
    • Stability: We develop customized stability studies, programs for you. We continuously evaluate data to protect product integrity, support regulatory submissions, and global distribution. Our stability program spans analytical laboratory trials, technical, clinical, registration, PPQ, and commercial batches; Stability storage chambers are ICH‑aligned with continuous monitoring and backups.

    We manage the full process: stability program setup, sampling storage, analytical testing, reporting, and link results to primary and secondary packaging material selection and process optimization.

    Analytical testing performed in clinical manufacturing
  • Compounding

    Compounding scales from sub‑liter volumes up to 200 L in a modular setup—glass bottles with stir bars at small scale and polymer/bag systems with integrated impellers at larger scale.

    We work with disposable bags or glassware, support a range of aseptic and open connection types, and offer multiple filter options. All product-contact parts are single-use, eliminating the need for product-specific vessel procurement and cleaning validation, and accelerating the setup process.

    Vetter compounding workers
  • Filtration

    Choosing the wrong filter can cause holdup volume that can affect yield. Thus, we offer a range of filter options and size/ select membranes and housings deliberately to minimize hold up and conserve scarce drug substance.

    Filtration
  • Technical batches 

    Technical filling runs focus on Process Performance Qualification (PPQ) and de‑risk your clinical program by confirming the process design before cGMP clinical manufacture.

    • Define and verify process parameters and tailor the Process Development Specification (PDS).
    • Generate material for method validation and method transfers.
    • Refine risk assessments and finalize master batch records (MBR).

    Where possible or required (e.g. for lyophilization), technical runs can be performed with smaller amounts of API, placebo, or surrogates.

    Technical clinical batch
  • Clinical batches

    Deliver cGMP clinical trial material from first‑in‑human (FIH) through Phase 3 scale‑up using high‑quality, reliable filling processes—supported by holistic analytical services and smooth tech transfer between early‑ and late‑stage sites.

    • Scope: Comprehensive cGMP clinical batch filling from initial batches for in-human trial material to Phase 3 scale‑up.
    • Quality & yield: Early clinical lines feature RABS for increased process security and 100% non-destructive inline weighing with processes designed to maximize yield.
    • Tech transfer & scaleup: Closely linked sites and an established tech‑transfer concept—with aligned systems and proven scale‑up—enable smooth hand‑offs to late‑clinical and commercial manufacturing.
    Clinical batch production
  • Lyophilization

    We develop and optimize lyophilization cycles from laboratory to at‑scale and confirm parameters through technical runs.
    Early‑phase execution is supported by qualified vial formats at both our US and EU site.

    Lyophilized vials for clinical trial use
  • Sampling

    We execute in‑process, reference, and stability sampling end‑to‑end—from sample planning and analytical samples taken throughout compounding, production, to storage, dispatch to analytical testings, reporting, and study close‑out.

    in-process sampling
  • Visual inspection

    We conduct manual visual inspection of every unit after the early clinical filling process.

    Visual inspection after clinical batch filling
  • Storage and shipping

    We provide SAP‑managed warehousing with qualified conditions (room temperature, 2–8 °C, frozen), and global shipping via air, sea, and temperature‑controlled trucks (incl. cold chain).

    Our Known Consignor and AEO‑F certifications streamline secure air freight and customs clearance; slides outline incoming/outgoing requirements for both US and EU clinical sites and sample shipping to Ravensburg.

    Warehouse pharmaceutical goods
  • Logo MoonLake

    We are excited to work with such a high quality and reliable partner. With Vetter’s world-class support, we have further strengthened the supply chain for sonelokimab from drug filling through to finished product.

    Oliver Daltrop, Chief Technical Officer, MoonLake

  • Eleva customer statement

    Our collaboration with Vetter remains highly positive. As our clinical filling partner, they deliver high-quality batches crucial for early-phase trials. Their expertise supports the development of Factor H (CPV-104) for C3 glomerulopathy and broader indications. Vetter’s reliability and commitment make them a trusted partner at this critical stage.​

    ​Dr. Andreas Schaaf, Managing Director & Chief Scientific Officer, Eleva

Expanding resources and investment in clinical manufacturing
Looking ahead

Expanding our support for your clinical success

We’re actively expanding our clinical manufacturing services through continual investment in expertise, resources, and capacity.

Today, we have dedicated facilities in both the US and EU – both of which produce high-quality clinical trial material (CTM) for development programs around the world. We work closely with each of our customers to select the optimal site and filling line for their strategic requirements and product needs.

Facts & figures 

80 %
of our active customer projects involve complex biologics.
225 +
active customer projects in preclinical through Phase 3 and product life cycle
6
commercial product launches in 2025 alone
70 %
of customers with clinical projects have <200 employees

Frequently Asked Questions (FAQ)

What is the difference between commercial manufacturing and clinical manufacturing?

Clinical manufacturing and commercial manufacturing are both GMP-compliant processes that serve distinct purposes at different phases of the drug product lifecycle.

Clinical manufacturing focuses on producing smaller, flexible batches of injectable drug candidates to support Phase I through Phase III in-human trials. Agility is often the priority: Accommodating evolving formulations, relatively small unit counts, and the rapid timelines that development-stage programs demand.

Commercial  manufacturing is built for scale, consistency, and global supply, with a focus on producing uniform batches that can reliably meet worldwide demand. At the commercial stage, processes are fully validated, and quality systems are calibrated for high-throughput performance.

When should I engage Vetter? What a realistic Clinical Trial Material (CTM)  timeline looks like for injectables?

Engage us as early as possible in your clinical development roadmap. For a sterile injectable project, collaboration with a contract manufacturing partner should ideally begin during pre-clinical development, before finalizing your Investigational New Drug (IND) or Investigational Medicinal Product Dossier (IMPD) submissions.

This early engagement gives us the opportunity to define  the manufacturing processes, primary packaging choices, and analytical methods you commit to in your regulatory filings, and to verify that they are technically feasible, scalable, and fully validated before beginning the filling process.

The timeline for this partnership can vary based on a number of factors, such as batch size, API availability, container type, and the amount of additional development work needed to comply with GMP. For a Phase I/II sterile injectable (liquid vial), after successful kickoff, a typical project timeline from PDS approval to CTM fill is approximately 6  months.
 

How can partnering with Vetter help accelerate first‑in‑human studies?

Our dedicated clinical manufacturing sites in Chicago, USA and Rankweil, Austria are purpose-built to support the transition from lab to in-human evaluation, with specialized teams, equipment, and processes focused on early-phase injectable programs.

At every step of a partnership, our aseptic manufacturing experts guide sponsors through the clinical manufacturing process with the responsiveness and flexibility that early-stage programs require. We provide comprehensive support for new injectable product candidates, reducing the complexity that can come with multi-partner project networks. Our in-house analytical capabilities — including method transfer and stability testing — also help avoid the delays that come with relying on outside labs.

The result: A streamlined path from API handoff, to first GMP batch, to first patient dose.

What kind of companies does Vetter work with for clinical manufacturing?

We are proud to work with a wide range of pharmaceutical and biotech companies that own a diverse spectrum of sterile injectable drug products. Currently, over 80% of our customers’ clinical-stage products are complex biologics, such as monoclonal antibodies, oligonucleotides, and other sensitive, technically demanding substances.

Our partners include organizations of every scale, from global strategic enterprises with diversified portfolios to startups and spinouts going to the clinic for the first time. While some of the world’s largest sterile injectable owners rely on us to support their clinical development programs, 40%  of our clinical-stage customers have fewer than 50 employees.

How does Vetter support transition from clinical to commercialization?

Our clinical and commercial manufacturing services are closely and purposefully integrated to enable successful tech-transfer.

Our clinical sites in Chicago, USA and Rankweil, Austria, were both designed to support efficient transitions to our commercial manufacturing hub in Ravensburg, Germany, including shared technology platforms, quality systems, materials, production resources  , and more.  Process knowledge, analytical methods, and quality data built during clinical development can be transferred directly  into our commercial production environments.

Our process design and tech transfer teams also manage this handoff carefully, overseeing process performance qualification batches and change controls to  provide a validated, quality-first pivot from clinical to commercial manufacturing. Regulatory continuity is built in as well: Vetter's CMC specialists support sponsors from clinical development through market authorization and beyond, with an established track record across the FDA, EMA, and other major global authorities.

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Ready to take the next step?

Want learn more about our aseptic filling services? Reach out to our team to discuss how we can support you.

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