A multilingual clinical trial may involve several types of translation requirements at once: technical reports for specialists, information for prospective participants, and documents submitted for regulatory or ethical reviews. Looking at these materials only as a word count to process disregards the decisions that determine if the outcomes will be accurate, clear, consistent, and compliant. For each document, it is important to define who will use it, which language variant is required, which version should be translated, and who is responsible for resolving questions.
When selecting a language provider, it is crucial to ensure process confidentiality, translator qualifications, and content competency. Terralíngua’s extensive experience with technical and scientific translation includes over 30 years of accurate clinical trial reports, approved regulatory content, and securely handled patient information. Our multiple ISO certifications (9001, 18587, and 17100) connect our multilingual teams and professional services to create localized documents, educate audiences, and meet study language requirements with one trusted industry resource.
The approach below provides a framework for planning clinical trial translation. Note that study teams should confirm applicable regulatory and ethical requirements with their appropriate specialists and departments. Terralingua’s professional services support all processes, but it does not replace internal decisions or guarantee regulatory or ethics acceptance.
Build the Document Inventory Before Requesting Bids
When requesting pricing, a simple step is often overlooked: define exactly which files are included in the estimate, and which are excluded. Providing an entire document folder will not determine the actual scope of the translation work. For an accurate quote, start with providing the final versions and identify the source language with the specific language variant, when relevant—such as Canadian French. Establish the intended audience demographics, such as location or reading-level requirements and return file formats. Clearly indicate the file status such as “awaiting approval” or “provided only for reference”. If the final files are not yet available, this information can help the provider prepare a budgetary quote based on the current scope.
Reserve time to separate participant-facing materials from documents intended for investigators, reviewers, and other specialists. Depending on the study, the inventory may include patient information, consent materials, recruitment content, visit instructions, clinical reports, and supporting documents. Not every trial requires all items to be translated, so capture the essential files for pricing.
Identify documents containing material that should remain “as is”. This content is called “do not translate” items (DNT) that will be recorded in the style guide. This may include document identifiers, product codes, linked references, trademarked names, or text included in a separate authorization or embedded in images. Specify how these elements should be handled, and if it is a universal instruction. This will result in reduced queries and efficient deliveries.
Keep a document inventory that is practical and current. A maintained spreadsheet with simple columns such as file ownership approvals, version status, and available languages is more useful than an elaborate register that no one updates. When requesting pricing, include a separate file list with directions and required languages. Once work begins, this same inventory will be used for tracking review approvals and deliveries.
Specify Study Language Variants by Audience and Destination
A country list alone is not a complete language brief. Some countries have more than one official language, and language requirements can also vary by region and audience. For each document, identify the required language and regional variant, along with its intended audience and destination. Avoid requesting simply “Portuguese” or “Spanish” without confirming the specific location and intended readers’ demographics such as reading level.
Document decisions that affect consistency such as terminology, measurement, dates, decimal notation, and local contact details are kept in an established style guide. Terralingua creates a style guide for each client, but not all language providers will create this asset. Research whether translated study materials exist, and if content is approved for reuse and sharing. A previous translation may be useful, but it should not have automatic acceptance as the governing reference. Ensure work is completed with the most current version and apply required updates such as target audience revisions or compliance concerns.
For EU clinical trials, do not assume that one English package will satisfy every document or language requirement. The European Commission’s EudraLex Volume 10 provides language requirements for Part I documents and identifies where sponsors can find Member State information on national requirements for Part II. The sponsor’s regulatory team should confirm the current requirements for the countries and documents before the translation scope is finalized. (Source https://health.ec.europa.eu/medicinal-products/eudralex/eudralex-volume-10_en?utm)
Convert these decisions into a document-by-language matrix. Each populated entry represents a deliverable to schedule and review, rather than an implied request to translate every file into every language.
European Commission guidance on clinical trial documentation and language requirements
Give Participant Information Its Own Brief
Participant-facing text benefits from a clear description of the intended reader and setting. A term or phrase that is familiar to a clinical specialist may need to be explained differently for someone considering participation. Provide your translation partner with the approved source, relevant terminology, and any authorized explanations of scientific concepts. Also clarify how questions about meaning will be escalated with contact information, rather than expecting the translator to make unsupported clinical judgments. Points of contact are very important when time is of the essence to meet a deadline.
For FDA-regulated clinical investigations, informed-consent information must be provided in language understood by the prospective participant or their legally authorized representative. FDA’s August 2023 Informed Consent Guidance for Institutional Review Boards (IRBs), Clinical Investigators, and Sponsors addresses situations in which prospective participants who do not understand English may be enrolled. It recommends that investigators and IRBs plan for translated consent materials when there will be non-English-speaking participants, and outlines the IRB’s role in procedures for ensuring that translations are appropriately prepared. An institutional review board (IRB) is the body responsible for reviewing and approving the informed-consent documents and procedures applicable to the research under its oversight.
Build the translation schedule around the review process confirmed by the study team. Delivery of a translated document should not be confused with the required authorization. For example, communication requirements such as interpreter arrangements have separate planning considerations and assignments. Translated materials alone do not address every communication need during the study participation. Assign appropriate roles for any communication need.
FDA: Informed Consent Guidance for IRBs, Clinical Investigators, and Sponsors
Establish the Source Version and Manage Dependencies
Agree on the source file that will serve as the baseline for each assignment. A filename marked “Final” is not enough when different contributors are providing feedback. Record the document identifier, version, date, and source owner, and clarify whether comments are instructions, unresolved questions, or text intended for the reader.
Some teams need to begin language work before the source package is fully finalized. If so, label the assignment accordingly and agree in advance how subsequent changes will be communicated, assessed, and quoted. Starting early can create additional revision work, so it should be a deliberate scheduling decision, supported by a process for identifying changed source content and the affected languages.
Map dependencies between documents. A change to a procedure description, for example, might affect participant information, visit instructions, and the report template. The study team should identify these relationships so the provider can assess the translated content against a defined set of affected files.
For example, if an owner updates the wording used to describe a visit and submits the revised source together with a summary of the changes. Ask the team to confirm whether the revised wording appears elsewhere in the document set. This is more useful than forwarding several similarly named files with a request to “use the newest one.”
Gathering Terminology and Reference Material
Provide a concise, relevant reference package for your translation partner. Useful information includes approved abbreviations, product names, study-specific terminology, existing translations with a known approval status, and client style guidance. When two reference documents use different terms for the same concept, identify which source takes priority. Ask previous translation partners for approved translation memories which can be leveraged for consistency and cost savings.
Terminology decisions need context. A list of isolated terms may not explain whether a term describes an outcome, a procedure, or a participant experience. Where confusion is likely, include a definition or an approved source example. If participant-facing wording differs from specialist terminology, identify the distinction rather than requiring one identical phrase across all materials.
Decide who can approve the proposed term, and how the decision will be recorded. One practical approach is to maintain a consolidated question log containing the source passage, the question, the confirmed answer, and the affected files. Please note this is only a recommended planning method, not a claim that every provider implements a particular terminology-management system.
Before commissioning a glossary as a separate deliverable, confirm its scope, language coverage, format, and ownership. The value of a glossary is not its size, but whether translators and reviewers are working from the same approved decisions. Ease of use is important as well so past decisions can be easily referenced with future updates.
Determine Responsibilities Before Starting Translation
Designate a source content owner, a translation query point of contact, and the reviewers needed for each language deliverable. One person may hold more than one role, but the responsibilities should be clear. The source content owner resolves questions about intended meanings. The language provider manages the translated content and agreed upon linguistic review, while the client’s designated specialists determine whether the content is acceptable for its study-specific use.
Give reviewers an explicit task. Are they checking technical accuracy, local terminology, patient-facing clarity, or changes requested by an authority? Asking everyone to review “everything” can produce conflicting edits without a clear final authority.
Separate corrections from preferences. If a reviewer changes a term because the translation does not accurately reflect the source, the issue needs to be resolved. If the change reflects a local style preference, record it as such and decide whether it should apply to other materials. All feedback should be considered and applied to all relevant content.
Set a method for consolidating comments before they are returned to the provider. A single reconciled and recorded response can prevent competing versions from circulating. Agree how the final language review will be handled after edits, especially when those edits change meaning or introduce terminology that is not reflected in the source. Terralingua includes one complimentary round of client review comments and revisions if all feedback is consolidated.
Define the Final Delivery Requirements and Acceptance Criteria
Specify the final delivery requirements. An editable translated document, a formatted PDF, and a bilingual review file are different deliverables; so do not assume that all three are included in the scope of work. Confirm file types, naming conventions, page-layout expectations, and any accompanying records before work begins as this will affect pricing and turnaround time. Request additional deliverables only when they serve a genuine review or operational need.
Explain the localized content use environment. Text transferred into a portal, form, or other system may face character limits or layout constraints that may not be visible. Give the provider applicable character limits, field context, and the required process for language placement. Assign separate owners for system configuration and functional validation. Define what should and should not be included, such as if there is a localized cited sources requirement. Should image text be included or excluded in the scope of work, or will any other modifications be required for compliance acceptance?
Define acceptance in observable terms. The delivered package should correspond to the agreed source versions, include the requested language variants, preserve required identifiers, and reflect resolved terminology decisions. Specify how omissions, unanswered queries, or formatting problems will be reported and corrected. Ensure all required aspects of the trial are included in the scope of work pricing and promised deliverables.
Ask whether any document requires a translation declaration, additional verification, or a specific approval record. Confirm the requirement with the responsible party before adding it to the order’s specifications. Terralingua can provide a signed letter of accuracy if requested. Different documents and destinations may require different supporting evidence; therefore a generic request for “certified translation” may leave important questions unanswered.
Identify Specialized Materials
Not every language task in a study should be treated as an ordinary document translation. If the inventory includes a questionnaire, assessment instrument, or licensed content, ask the owner whether an authorized translation already exists and whether permissions or a specified adaptation process apply. Resolve those questions before editing, retranslating, or adapting the material.
Similarly, distinguish translation of an existing clinical report from writing, interpreting, or approving its scientific content. The provider needs a clear source and a defined process for raising questions about ambiguities. Responsibility for the study findings and their intended presentation remains with the appropriate authors and reviewers.
Flag sensitive information in the files before sharing them. Use the organization’s approved file transfer process and establish who is authorized to receive the material. Confirm whether identifiers are necessary for the translation task or if an authorized source owner can provide a reduced-data version. Do not ask the translator to decide which clinical information may be removed. Ensure your translation provider has the appropriate security and controlled access procedures in place.
These decisions will help to form a useful quotation for evaluation. They help all parties identify work for translation only, work that requires editing services, and services that may require a separate specialist or authorization to complete. They also help to prevent misunderstandings when there is a complex document package with unresolved trial dependencies.
Build Review Decisions into the Translation Schedule
The translation deadline is only one milestone. Work backward from the date the study team needs the approved deliverable, allowing time for source preparation, translation, agreed linguistic review, client review, issue resolution, and final formatting. Confirm the sequence and timing of each step including regular content reviews and milestones.
A small word count does not necessarily mean a simple assignment. Ambiguous terminology, multiple file versions, tables, poor-quality scans, complex layouts, and several reviewers can affect the effort and time involved. The number of language variants and the availability of qualified reviewers should also be part of the scheduling and planning decisions.
Use staged delivery where it has a defined purpose. For example, reviewing a terminology-sensitive section early will help establish key wording before the rest of the package proceeds. Agree as to which decisions are provisional and which will serve as the reference for later files. Do not treat an early sample as approval of material that has not been confirmed.
Reserve a process for urgent changes. Identify the person who can authorize additional work and communicate the impact on dependent deliverables. A change request is easier to assess when it includes the revised source, affected languages, and reason for the revised deadline.
Make Revision Ownership Visible
Consider a hypothetical study team preparing participant information and visit instructions in three language variants. After the first translation delivery, the source owner changes a paragraph that appears in both document types. A local reviewer also proposes a preferred term. These are related but distinct changes: one originates in the source content, while the other may establish a language-specific terminology preference.
The team should identify the affected files, confirm the approved source change, and decide whether the terminology preference applies to other materials. The provider can then revise the specified translations and return for confirmation clearance and approval steps. Simply replacing one paragraph in one local file could leave uncertainty about the rest of the package. Terralingua will update the style guide and translation memory databases with approved review changes to ensure consistency with all future work.
Keep a practical delivery record that captures the source identifier, translated version, language variant, delivery date, outstanding issues, and person responsible for release. Distinguish a file delivered for review from one authorized for its intended use. Those status labels should follow the study team’s existing document-control arrangements.
This example illustrates coordination rather than a specific regulatory workflow. The goal is to make ownership of changes visible, so the next person does not have to reconstruct why two versions differ.
Frequently Asked Questions
Can We Request a Quote Before All Source Documents Are Final?
Yes. Provide the available files with a list showing what is final, pending, or supplied only for reference. Identify the expected languages, audiences, formats, and milestones. Ask for a budgetary quote when the scope is provisional and agree how changes are assessed before treating the estimate as the final production scope.
Can Previously Translated Study Materials Be Reused?
Existing translated material can provide a useful starting point when the source version, approval status, and permitted use are known. Check whether the study context, audience, language variant, and terminology match. Supply existing translated materials and any available approved translation memory as references. Note that reused passages still require review approvals with the current source.
Does a Translation Declaration Replace a Study Approval?
No. A translation declaration is a statement made by its issuer regarding the documents; it does not replace the study team's required review or official authorization of use. Confirm the recipient's requirements before ordering a declaration or other supporting record. Keep the translation delivery separate from the document release status.
How Should Translation Amendments Be Submitted?
Send the revised source with its document identifier, version, and a clear change summary. Identify affected languages and related documents, including repeated passages that may also need revision. Assign a contact who can resolve questions and confirm the review deadline. The returned translations should remain traceable to that specific source amendment. PDF annotations are the most common form of submitting amendments, but any written record can be accepted.
Preparing a Brief for Translation Assessment
Terralíngua’s technical translation services cover medical and pharmaceutical documents such as clinical trial reports, regulatory submissions, and patient information. These services address all written content required for a multilingual trial. The assignment scope should be defined based on the specific files, languages, language variants, and the review requirements.
Before requesting a quote, assemble the document inventory, approved source versions, and available editable files. Add the required target language variants, intended readers, reference terminology, reviewer contacts, desired delivery formats, and key milestones. Flag materials that are still awaiting approval, expected amendments, and any specialized requirements with their associated confirmation process.
If some decisions are still unresolved, list them openly. A request that identifies its uncertainties is more useful than one that labels an incomplete package as “ready.” This allows the discussion to focus on what can proceed and what needs resolution.
Share your approved source materials and project brief with the Terralíngua team to establish the translation scope and request pricing. When defining requirements, keep regulatory acceptance, ethical approval, and study-specific content decisions with the appropriate reviewers, while clearly defining translation responsibilities, deadlines, and expectations.
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