Trial comparisons

Response

The first 2 of this page's 20 results. GET /api/comparisons/v1?page=16

{
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    "results": [
      {
        "id": "NCT04470427-a19f9c16",
        "title": "Part A (Blinded): mRNA-1273 vs Part A (Blinded): Placebo: Part A: Number of Participants With a Secondary Case Definition of COVID-19 Starting 14 Days After Second Dose",
        "summary": "58 of 14287 against 807 of 14164; risk difference -5.3 points, 95% interval -5.7 to -4.9; NCT04470427, A Study to Evaluate Efficacy, Safety, and Immunogenicity of mRNA-1273 Vaccine in Adults Aged 18 Years and Older to Prevent COVID-19",
        "record": "/library/comparisons/NCT04470427-a19f9c16",
        "nct_id": "NCT04470427",
        "kind": "outcome",
        "participants": 28451,
        "risk_difference": {
          "value": -0.05291579603641941,
          "lower": -0.056960116584483564,
          "upper": -0.049032223621064984
        },
        "group_1": "58 of 14,287",
        "group_2": "807 of 14,164",
        "difference": "-5.3 points",
        "interval": "-5.7 to -4.9",
        "trial_title": "A Study to Evaluate Efficacy, Safety, and Immunogenicity of mRNA-1273 Vaccine in Adults Aged 18 Years and Older to Prevent COVID-19"
      },
      {
        "id": "NCT04470427-e6a826c7",
        "title": "Part A (Blinded): mRNA-1273 vs Part A (Blinded): Placebo: Part A: Number of Participants With a First Occurrence of Either COVID-19 or SARS-CoV-2 Infection Regardless of Symptomatology or Severity Starting 14 Days After Second Dose",
        "summary": "280 of 14287 against 1339 of 14164; risk difference -7.5 points, 95% interval -8.0 to -7.0; NCT04470427, A Study to Evaluate Efficacy, Safety, and Immunogenicity of mRNA-1273 Vaccine in Adults Aged 18 Years and Older to Prevent COVID-19",
        "record": "/library/comparisons/NCT04470427-e6a826c7",
        "nct_id": "NCT04470427",
        "kind": "outcome",
        "participants": 28451,
        "risk_difference": {
          "value": -0.07493720580680074,
          "lower": -0.08031337109214047,
          "upper": -0.0696494965534505
        },
        "group_1": "280 of 14,287",
        "group_2": "1,339 of 14,164",
        "difference": "-7.5 points",
        "interval": "-8.0 to -7.0",
        "trial_title": "A Study to Evaluate Efficacy, Safety, and Immunogenicity of mRNA-1273 Vaccine in Adults Aged 18 Years and Older to Prevent COVID-19"
      }
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        "label": "Comparison"
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        "label": "With the outcome",
        "under": "group_2"
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        "key": "difference",
        "label": "Risk difference, 95% interval",
        "under": "interval"
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        "label": "Participants"
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        "label": "Trial",
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    "order": "Most participants first",
    "kinds": {
      "all": 85013,
      "outcome": 33568,
      "serious-adverse-events": 31897,
      "deaths": 19548
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  "release": "trial-comparisons-2026-03-23-0.1.0",
  "terms": [
    {
      "source": "ClinicalTrials.gov's posted results, through CTTI's AACT",
      "license": "ClinicalTrials.gov data via Aggregate Analysis of ClinicalTrials.gov (AACT), CTTI. CTTI makes its materials freely available and requests acknowledgement. https://aact.ctti-clinicaltrials.org/documentation/299",
      "notice": "ClinicalTrials.gov's data carry an international copyright outside the United States: https://clinicaltrials.gov/about-site/terms-conditions. The measures are ConductScience's calculation from them.",
      "short": "Freely available. Acknowledgement requested"
    },
    {
      "source": "ClinicalTrials.gov",
      "license": "none stated",
      "notice": "ClinicalTrials.gov's data carry an international copyright outside the United States: https://clinicaltrials.gov/about-site/terms-conditions. The measures are ConductScience's calculation from them.",
      "short": "None stated"
    }
  ],
  "next": "/api/comparisons/v1?page=17",
  "request_id": "emgqmOvNAzbx4kUy"
}