Webinar · Wednesday 9 September 2026

Understanding Your Cycle

Continued Process Verification for VPHP Bio-decontamination

Ninety minutes, discussion-first, on building the in-house data that explains why your cycle works.

Date
Wed 9 September 2026
Time
15:00–16:30 BST
Speakers

Vanessa Vasadi Figueroa, VVF Science  ·  Kate Marshall, Protak Scientific  ·  Dan Osterby, Moderna

The situation

How well do you understand your cycle?

Most isolator cycles have run unchanged for years, and there is little in-house data to explain why they work. A robust cycle validation needs more than that.

When something goes wrong, the only answer available is a pass or a fail, and the investigation runs long. The data that would explain the result was never gathered.

This discussion-led session looks at how Continued Process Verification changes that: a quantitative evidence base of your own, built from cycle development onwards, until you understand your cycle well enough to explain, optimise and defend it.

What we will cover

Ninety minutes, questions taken throughout

  • The understanding gap. What most teams can currently say about their own cycle, and what closing that gap makes possible.
  • The science, briefly. Why cycles vary with geometry, load, materials, humidity, temperature and hydrogen peroxide quantity, and what a binary result cannot tell you about where the process sat within the cycle.
  • The CPV journey. The route from cycle development, through qualification, to routine monitoring positions, and how those get chosen, rationalised down to a representative set, and defended under scrutiny.
  • In practice. A real deployment walked through end to end, from distribution mapping across worst-case loads to routine monitoring.

What you will leave with

Four things you can take back to site

  • A practical route to routine verification and trending between periodic qualifications.
  • How routine monitoring locations are chosen, rationalised and defended when they are scrutinised.
  • Why a bio-decontamination cycle is a process in its own right, and what that changes about how you evidence it.
  • What changes operationally and commercially as process understanding builds in-house.

The panel

Three views on the same problem

An independent consultant, a supplier and a manufacturer, answering the same question from three sides.

Vanessa Vasadi Figueroa

Vanessa Vasadi Figueroa

Chief Executive Microbiologist and Independent Consultant, VVF Science

Over 20 years in sterility assurance, aseptic processing and contamination control. Vanessa leads the technical segment and brings the independent view of what separates a site that owns its process from one that does not.

Kate Marshall

Kate Marshall

Technical Director, Protak Scientific

Pharmaceutical microbiologist leading Protak’s Enzyme Indicator team, with almost twenty years at GSK as a regulatory SME with the MHRA and FDA. Kate brings the field view, including what the first call sounds like after an unexpected result.

Dan Osterby

Daniel Østerby

Global Head of Sterility Assurance, Moderna

Dan gives the manufacturer’s perspective, drawing on his general industry experience across sterility assurance.

Robin Hill-Walker

Robin Hill-Walker

Key Account Director, Protak Scientific

Robin hosts the session, keeping the discussion moving and bringing in questions from the audience throughout.

The technology

Where enzyme indicators fit

Biological indicators remain the qualification benchmark. That does not change.

What they cannot tell you is how much margin you had. Enzyme indicators are quantitative and non-viable, and give a result in approximately 60 seconds. Used from cycle development onwards, alongside biological indicators, they build a quantitative evidence base that belongs to your site.

The more often you verify your cycle, the faster you build the evidence base. And the more of your cycle you can explain rather than simply pass.

Annex 1 makes room for this. It permits alternative methods where equivalence or superiority is demonstrated, and says rapid and alternative methods and continuous monitoring systems should be considered. Routine enzyme indicator monitoring supports ongoing verification and trending between periodic qualifications. Enzyme indicators complement biological indicators. They do not replace them.

Who should attend

Built for validation and engineering

Validation and engineering professionals working with hydrogen peroxide bio-decontamination in isolators, and the quality and microbiology colleagues who review their work. The microbiology stays light. The implementation detail does not.

About

Protak Scientific provides validation lifecycle services for hydrogen peroxide bio-decontamination, backed by proprietary enzyme indicator technology. The enzyme indicator returns a quantitative result in approximately 60 seconds rather than days, and is in use across the pharmaceutical and life sciences industries worldwide.

VVF Science is an independent sterility assurance consultancy led by Vanessa Vasadi Figueroa, working with manufacturers on aseptic processing and contamination control strategy.

Join us on Wednesday 9 September

15:00 to 16:30 BST. Register and we will send you the recording.

Resources

Enzyme Indicators

Read about the advantages and benefits of using our Enzyme Indicators for your H₂O₂
bio-decontamination validation processes.

BI vs EI

Biological Indicators vs Enzyme Indicators at a glance.

Case Studies

Presentations, white papers, webinars, shared articles, project summaries and product analysis.