Regulatory Affairs Services

Regulatory affairs across the clinical trial lifecycle

Regulatory activity begins before a trial can start and continues throughout study delivery until formal close-out. At the outset, sponsors need the right submissions in place to obtain approval to run the trial. During the active phase, amendments, annual updates and notifications may be required to keep the study compliant. At close-out, sponsors must complete the appropriate end of trial notifications and related regulatory steps.

PHARMExcel supports this full clinical trial pathway with regulatory oversight that is practical, proportionate and closely aligned with the operational realities of study delivery. Because our regulatory teams work closely with project management, safety, data and clinical operations colleagues, submissions are developed in a way that reflects how the study will actually run, not just how it looks on paper.

Clinical trial applications and trial-specific regulatory submissions

Successful clinical research depends on accurate, compliant and well-structured submissions. PHARMExcel supports the preparation, coordination and management of Clinical Trial Applications in the UK and Europe, Investigational New Drug applications in the US and equivalent trial-start submissions in other regions where required.

Our regulatory affairs services include support for:

Clinical Trial Applications (CTAs)

Investigational New Drug applications (INDs)

Ethics committee and IRB submissions

Local authorisations and site-level regulatory documentation

Substantial amendments or modifications

Annual updates and status notifications

End of trial notifications

Our role is to help sponsors prepare and manage these submissions in a way that is complete, clear and aligned with the regulatory requirements of the region in which the trial is being conducted.

Ethics committees, IRBs and regulatory authority interactions

A key part of PHARMExcel’s regulatory affairs remit is managing interactions linked to trial approvals and ongoing study conduct. In the UK and Europe, this includes submissions to ethics committees and regulatory authorities. In the US and other regions, the equivalent process may involve IRBs and regional regulatory bodies.

PHARMExcel supports sponsors with the preparation of submission packages, responses to requests for clarification, management of amendments and ongoing communications required during the course of the study. We use the broader term regulatory authorities where appropriate, rather than language that only applies in one region, so that documentation and communications are framed correctly across UK, EU and US contexts.

Regional coordination, CTIS and ongoing trial maintenance

Where studies involve Europe, PHARMExcel can support sponsors with Clinical Trials Information System-related submissions and coordination. Our role is to help manage the trial-specific documentation and updates needed to maintain compliance within the relevant framework, including changes made during study delivery and notifications required at key milestones.

For international studies, we help sponsors keep regulatory activity coordinated across the clinical trial programme while still recognising local requirements. This includes keeping track of submission status, supporting updates and ensuring that regulatory activities remain aligned with the operational progress of the trial.

Why sponsors choose PHARMExcel for regulatory affairs services

Sponsors choose PHARMExcel because we combine regulatory understanding, practical study knowledge and a quality-driven approach to clinical trial delivery. As a smaller, specialist CRO based in the UK, we offer direct access to experienced senior staff, continuity of team and the flexibility and personal service that larger organisations often struggle to match.

One of PHARMExcel’s strengths is that regulatory work is closely connected to the teams responsible for the broader delivery of the trial. In larger organisations, start-up and delivery can become siloed, creating handovers and gaps. At PHARMExcel, continuity between regulatory planning, study set-up and active delivery helps maintain consistency, reduce delays and ensure that regulatory submissions remain grounded in operational reality.

Our aim is to reduce regulatory burden, support compliant study conduct and help sponsors manage trial-specific submissions with clarity and confidence throughout the clinical trial lifecycle.

Need expert regulatory support for your next study?

From early regulatory strategy through to submissions and ongoing authority interactions, PHARMExcel provides practical, responsive regulatory expertise tailored to your project. Speak to our team to discuss your requirements and discover how we can help accelerate your path to clinical trial approval.