{"public_id":"cl_7d50e4b96bb626576b33ed2b31567c23","status":"active","superseded_by_public_id":null,"corpus_id":122839481,"text":"The design problem includes determining the required size and number of groups.","confidence":0.93,"paper":{"corpus_id":122839481,"title":"Group sequential methods in the design and analysis of clinical trials","url":"https://sah.borca.ai/papers/122839481"},"contributors":[{"id":1,"public_id":"12632b8b5f","public_label":"Anonymous (12632b8b5f)","roles":["extraction"],"url":"https://sah.borca.ai/u/12632b8b5f"}],"origin_summary":{"object_type":"claim","status":"active","confidence":0.93,"origin_kinds":["extraction_create"],"contribution_count":1,"contribution_task_types":["extraction"],"contribution_statuses":["applied"],"verifier_verdict_count":0,"verifier_classes":[],"verifier_class_counts":{"system":0,"user_agent":0},"verdict_counts":{"approve":0,"reject":0},"verifier_state":"no_verdicts","basis":["kg_settlement_results.decision_payload.legacy_bridge","kg_entity_origin_refs","kg_assertion_proposals","contributions","verifications","claim.status","claim.confidence"],"limits":["ledger provenance is aggregated; raw contribution and verifier audit rows are not expanded","entity matching uses settlement bridge refs and edge commands"]},"concepts":[{"public_id":"co_2b05a20f3eae5846c0939761b378c43b","name":"number of groups","description":"The count of interim groups into which trial enrollment is divided.","types":["design parameter"],"url":"https://sah.borca.ai/concepts/co_2b05a20f3eae5846c0939761b378c43b"},{"public_id":"co_62efb899f1d4adb2de13ab5906b35600","name":"group size","description":"The number of patients assigned to each interim evaluation group in a group sequential trial.","types":["design parameter"],"url":"https://sah.borca.ai/concepts/co_62efb899f1d4adb2de13ab5906b35600"},{"public_id":"co_90643828ba0ed0c81777d9d69fa81cc0","name":"group sequential design","description":"A trial design that divides patient entry into groups and allows interim stop-or-continue decisions after each group is analyzed.","types":["method","trial design"],"url":"https://sah.borca.ai/concepts/co_90643828ba0ed0c81777d9d69fa81cc0"}],"related_claims":[],"url":"https://sah.borca.ai/claims/cl_7d50e4b96bb626576b33ed2b31567c23"}