Q1100. How to process clinical trial research document translations for medical compliance?

Answered by the NYC Visa & Translation certified translation team

Clinical trial documents for Thai compliance are governed by the Thai FDA's clinical trial regulations and the Ethics Committee system under ICH-GCP, and the language practice is well-established: the protocol, investigator's brochure, and case report forms are usually in English (the international sponsor's language), while the documents facing Thai subjects — the informed consent form, patient information sheets, and subject-facing materials — must be in Thai, and the Ethics Committee reviews the Thai consent text specifically. The translation workflow that satisfies compliance: the informed consent is translated into Thai and then back-translated by an independent translator, with discrepancies reconciled — this translate-back-translate cycle is the accepted quality standard for subject-facing documents; the Thai consent must be written at a reading level appropriate for the general population, not a literal rendering of the English medical text; and amendments follow the same cycle with version control — the Ethics Committee approves specific versions, and using an unapproved version is a compliance breach. Regulatory points: the Thai FDA clinical trial application document list specifies which documents are filed in which language; safety reporting (SUSARs) follows the regulatory timelines in English; and for multi-country trials, the Thai site's regulatory documents (investigator CVs, site qualifications, laboratory accreditations) go into English for the sponsor's trial master file. Practice points: book translation capacity at protocol finalisation — consent translation delays hold up Ethics Committee submission; and keep the translation vendor under the trial's confidentiality and quality agreements. Confirm the Ethics Committee's and Thai FDA's current requirements for the specific trial.