comparator sourcing clinical trials

Comparator and Ancillary Sourcing for Clinical Trials

In clinical trials, securing the right comparator drugs and ancillaries is critical. At KLIFO, we provide comparator and ancillary sourcing services that ensure quality, regulatory compliance, and on-time delivery – no matter where your trial is conducted. With more than 30 years of experience and a global network of qualified suppliers, we help you navigate a complex market so you avoid delays, overpaying, and compliance risks.

Klifo, Glostrup. 15/10-2025

comparator sourcing clinical trials

Challenges in comparator sourcing?

Comparator drugs (including rescue- and co-medications) act as the benchmark to demonstrate whether a new product is better than products already available on the market in terms of efficacy, safety…and increasingly value.

However, sourcing comparators is rarely straightforward:

  • Large volumes of comparator drugs may be required to support multiple trials. Manufacturers often lack visibility of this unexpected demand, potentially leading to drug shortages and supply issues with their leading products. To protect against this, manufacturers may be reluctant to supply clinical trials.
  • Lead times can be long, and sizes of available batches can be limited in individual markets.
  • Essential documentation, such as Certificate of Analysis, is not always accessible.
  • Multiple middlemen in the supply chain drive up costs.

Sponsors also face regulatory hurdles. For example, drugs sourced in one region may require additional supporting evidence (e.g. equivalency statements) before being approved for use in another.

comparator sourcing clinical trials

Ancillary sourcing – the often overlooked need

Ancillaries include everything required to administer the drug safely and effectively: syringes, needles, infusion tubing, swabs, and more. While these items may seem low value, complexity arises because requirements vary across regions (e.g., CE marking in the EU). Many providers avoid ancillary sourcing, but at KLIFO we integrate it as part of your overall clinical trial supply solution, ensuring complete and reliable delivery to your sites.

Klifo, Glostrup. 15/10-2025

comparator sourcing clinical trials

What you receive with KLIFO

Depending on your project’s needs, we deliver:

  1. Full service – KLIFO manages sourcing, blinding, packaging, labeling, release and distribution directly to clinical sites.
  2. Sourcing-only – Bulk shipments of comparator drugs and ancillaries to your vendor for downstream activities.

Both solutions are supported by our comprehensive clinical trial supply services, including oversight by our experience Project Management and Sourcing specialists and GDP-compliant global shipping expertise.

Guidance through every phase

Regardless of the phase of your clinical trial, KLIFO’s sourcing services remove from our clients the burden of identifying the best markets for sourcing, auditing and contracting with appropriate suppliers and managing ongoing supplier relationships. Why re-invent the wheel when KLIFO has already done the hard work for you?

Klifo, Glostrup. 15/10-2025

Strategic planning in action

A sponsor conducting an oncology trial required a high-demand comparator drug that was both expensive and in short supply. Their initial plan was to purchase all stock upfront. KLIFO analyzed enrollment rates and product shelf life, and instead recommended a phased purchasing strategy.

This allowed the sponsor to:

  • Avoid product expiry and waste
  • Secure incremental supply from a committed supplier
  • Source from lower-cost EU markets

The result: significant cost savings, secure supply throughout the trial, and full regulatory compliance.

Why choose KLIFO?

Every clinical trial is unique – and its supply chain is just as critical as the protocol itself. At KLIFO, we deliver sourcing strategies that protect patient safety, reduce costs, and keep your trial on track.

  • 30+ years of experience in comparator sourcing and clinical trial supply
  • End-to-end services, from sourcing to global distribution
  • Tailored strategies designed to minimize risk and optimize cost
  • Extensive global network of qualified suppliers
  • Full compliance assurance with GMP, GDP, and regulatory requirements
  • Transparency and flexibility – no surprises, just results
Get in touch with KLIFO

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Through collaboration, we can harness our combined expertise and ensure proper project implementation to ensure that your organisation benefits in both the short and long term.