Assay development

Let's build your dream assay

We develop CUSTOM HTRF kits

HTRF is the registered name of the TR-FRET technology developed by Cisbio. If you are new to HTRF and have been relying on Western Blot or ELISA formats, be prepared for a life changing experience of simplicity!

With over 600 kits and reagents in its catalogue, Cisbio offers the tools needed to address a wide array of applications, including Protein-Protein Interaction, in-cell phosphorylation, receptor signaling, and cytokine release.

The size of the human proteome dwarfs the Cisbio catalogue. Can’t find the kit you’re looking for in there? The custom laboratories are ready to help.

We develop a customized and optimal solution for you

Cisbio has partnered with industry and academia to dramatically shorten the drug identification process using our powerful, accurate HTRF® technology. Our expertise doesn’t end with our extensive catalogue of assays. An experienced Project Manager will evaluate your project’s chance of success, then work with you to create a customized assay for the target you seek to explore.

Cisbio will help your custom assay project to reach its goal with the full resources of a team of scientific experts dedicated to you and your target, working in strict confidentiality. We will carefully evaluate what’s possible and determine the most accurate and time-efficient path to the answers you seek. And we will make sure that the solution works for you by running it on your equipment in your lab.

With 3 custom assay options, there is an approach for any need

Biochemical assay development

Biochemical assay

We utilize only purified reagents for enzyme assays, protein quantification, or protein-protein interaction assays to elucidate your target’s biology.

ELISA conversion

ELISA conversion

We can convert any of your ELISA assays into an efficient HTRF® format, thus eliminating time-consuming and expensive steps.

Cell based assays

Cell-based assays

This customized solution will work with your specific cells. The reagents are carefully selected and optimized on your lysates to ensure consistent, reliable, and high-quality results on your preferred cell model.

Cisbio, a highly customer-focused company

At Cisbio we believe that a medium size, customer-focused company is more likely to deliver outstanding service than a large corporation. The reasons lie in our organization, our employees, and their passion for customer service.

Focus on HTRF

Our scientists focus exclusively on HTRF, and in doing so, have developed a deep understanding of the mechanisms involved.

Your project will receive the same attention and discerning development techniques as the hundreds of kits Cisbio has in its portfolio.

Focus on HTRF

Consistency and persistence

Psychologist A. Ericsson developed the concept of deliberate practice to explain the development of extraordinary abilities across disciplines, including sports and medicine. He believes the development of these skills is due to consistency and persistence. We wholeheartedly agree.

Our scientists have an unmatched level of experience developing HTRF assays and facing complex and diverse case scenarios.

Consistency and persistence

Customer-centric approach

Cisbio genuinely cares about its customers and their projects. We recruit our scientists based not just on their skills but also on their ability to develop empathy for our clients’ projects.

At Cisbio we understand that there is no one solution for the development of your ideal assay and that every project brings its own set of challenges. For that reason, Cisbio is organized around regional laboratories and encourages frequent conversations between our scientists and you, the future end users.

Customer centric approach

Chances of success

With our expertise and dedication, we can claim success rates above 90%. Science however does not always work 100% according to plan.

Our policy is to always be honest on the chances of success for any project. We bet on rational explanations to build trust with our clients.

This philosophy has resulted in the development of the Cisbio Proposal, a document that details the experimental plan foreseen and gives a realistic assessment of the chances of success. The Proposal is complimentary.

Chances of success

Unmatched deliverables

Why only get a protocol when you can have a custom kit?

All assay developments result in the delivery of a custom kit: a protocol, and a fixed quantity of reagents to perform an agreed-upon number of tests.

Unmatched deliverables

In as little as 4 to 8 weeks, we will develop and deliver your customized assay

Thanks to our extensive experience, Cisbio’s customized assay process is both flexible and fast. We begin by assigning you a dedicated Project Manager who will make sure that every part of the process meets your needs and timeline—with the level of NDA and MTA confidentiality you desire. The Project Manager will be available to answer any questions throughout the project, as well as to update you on the progress being made towards delivering your customized solution.

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First, we will deliver a feasibility study with complete assay specifications, including the options available to you, reagent description, and a precise development timeline. Then, the 4 to 8 week development process begins. Leveraging our depth of experience, we’ll work quickly to deliver your customized solution. We can modify our direction of study easily to accommodate any input you may provide during the project. Your assay will be optimized as we select and label the best reagents. Finally, we’ll work with you on assay transfer to your own laboratory. We can also help you with assay implementation and final report development.


Download our service brochure or be put in touch with one of our regional lab leaders.


Curious about the custom laboratories in Bedford, MA-USA and Codolet-France?

“Our people are our greatest asset and the main reason why pharmaceutical and biotech firms trust Cisbio with their development projects. Our custom teams are knowledgeable, hard-working and dedicated to our clients’ success. What truly makes the difference is their likable and personable characters.”

Nicolas Pierre, Global Product Manager for Services.


Take the tour!

Explore our US and Europe labs to check our latest equipment, and look around our chemistry lab where small molecule labeling magic occurs!

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Cisbio’s knowledgeable team of scientists are ready to help you.
No matter what the inquiry, our commitment to exceptional service ensures that we will provide you an optimal solution.

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