The phrase "alterations to the protocol" is correct and usable in written English.
You can use it when discussing changes or modifications made to a specific set of rules or procedures, often in a formal or technical context.
Example: "The team proposed several alterations to the protocol to improve efficiency and ensure compliance with new regulations."
Alternatives: "modifications to the protocol" or "changes to the protocol".
Despite several alterations to the protocol, the de- N-glycosylated version of CmINV showed no activity upon zymogram analysis.
After some alterations to the protocol regarding anonymisation and measures against intentional data fraud, the protocol was approved (Ethik-Kommission Lübeck; vote number 10 181).
As most cases of ME/CFS are complex involving multiple body systems, this process is often iterative and follow-up consultations are necessary to check progress and make alterations to the protocol.
The trial was conducted with no major alterations to the initial protocol.
Requests to step-up the level of authorization might require additional processes, agreements, or alterations to the IRB protocol (Table 22).
Since that patient invariably presents with multiple injuries and may not be fit for transfer to the ophthalmology operating theater, however, special alterations to the surgical protocol may be required.
However, most articles reported alterations to this protocol due to the identification of techniques or materials enhancing the assay's performance in their laboratories.
Genomic DNA was isolated using a Promega Wizard genomic DNA purification kit (A1120) (Promega Corporation, Madison, WI) with minor alterations to the manufacturer's protocol.
Various alterations to this protocol were made by our individual laboratories in several areas, including mutagenesis methods and agents, library complexity, use of frozen or live libraries, use of the poison primer PCR method (Edgley et al. 2002), and development of robotic solutions for various processing steps.
The protocol, described in the materials and methods, was modified to increase the radiosynthetic reliability by iterative reaction parameter modifications and alterations to the purification strategies.
The development of protocols for large, randomized clinical trials is a complicated and lengthy process often requiring alterations to the original research design.
