{
  "url": "https://openlegislation.uk/medicines-for-human-use-clinical-trials-regulations-2004/regulation-20",
  "json_url": "https://openlegislation.uk/medicines-for-human-use-clinical-trials-regulations-2004/regulation-20.json",
  "legislation": "uksi/2004/1031",
  "legislation_title": "The Medicines for Human Use (Clinical Trials) Regulations 2004",
  "legislation_url": "https://openlegislation.uk/medicines-for-human-use-clinical-trials-regulations-2004",
  "path": "regulation/20",
  "kind": "regulation",
  "number": "20",
  "heading": "Modifications to clinical trial approval",
  "text": "A modification to a clinical trial approval may be made—\n(a) by the licensing authority or the ethics committee, in accordance with regulation 21; or\n(b) by the sponsor, in accordance with regulations 22, 22A and 22B.",
  "extent": null,
  "status": null,
  "version": "current",
  "annotations": [
    {
      "type": "F",
      "label": "F1",
      "text": "Regs. 14-26 substituted (28.4.2026) by The Medicines for Human Use (Clinical Trials) (Amendment) Regulations 2025 (S.I. 2025/538), regs. 1(2), 14"
    }
  ],
  "outstanding_effects": [],
  "provenance": {
    "source": "legislation.gov.uk",
    "source_url": "https://www.legislation.gov.uk/uksi/2004/1031/regulation/20",
    "retrieved_at": "2026-10-29T05:28:03.775386+00:00"
  },
  "licence": "Open Government Licence v3.0",
  "licence_url": "https://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/",
  "attribution": "Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives."
}