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85,013 comparisons from ClinicalTrials.gov.

85,013 comparisons

Most participants first33,758 with no events in either group come last3,501 to 3,520 of 85,013

Show the results as
ComparisonWith the outcomeRisk difference, 95% intervalParticipantsTrial
Oral TDF vs Oral Placebo: Number of HIV-1 Infections of Oral TDF and Oral Placebo Arms52 of 993

35 of 999

1.7 points

-0.1 to 3.6

1,992NCT00705679

Safety and Effectiveness of TFV 1% Gel, TDF Tablets, and FTC/TDF Tablets in Preventing HIV in Women

TFV Gel vs Placebo Gel: Number of HIV-1 Infections of Tenofovir 1% Gel and Vaginal Placebo Gel Arms61 of 996

70 of 996

-0.9 points

-3.1 to 1.3

1,992NCT00705679

Safety and Effectiveness of TFV 1% Gel, TDF Tablets, and FTC/TDF Tablets in Preventing HIV in Women

Vaccine(Chengdu Olymvax Biopharmaceuticals Inc.) vs Vaccine (Walvax Biotechnology Co., LTD.): serious adverse events10 of 996

15 of 996

-0.5 points

-1.6 to 0.5

1,992NCT02692859

A Phase III Clinical Trial of a Haemophilus Influenzae Type b (Hib) Conjugate Vaccine

HIV Self-testing vs Information Only: Frequency of HIV Testing by Internet-recruited MSM.777 of 1,014

215 of 977

54.6 points

50.8 to 58.1

1,991NCT02067039

Evaluation of Rapid HIV Self-testing Among MSM (eSTAMP)

2-Dose Clostridium Difficile Vaccine vs 3-Dose Clostridium Difficile Vaccine: deaths from any cause15 of 994

7 of 997

0.8 points

-0.1 to 1.8

1,991NCT03918629

Clostridium Difficile Vaccine 2-Dose Versus 3-Dose Study

2-Dose Clostridium Difficile Vaccine vs 3-Dose Clostridium Difficile Vaccine: serious adverse events141 of 994

136 of 997

0.5 points

-2.5 to 3.6

1,991NCT03918629

Clostridium Difficile Vaccine 2-Dose Versus 3-Dose Study

Absorb BVS vs XIENCE: Number of Participants With Powered Secondary Endpoint: All Revascularization120 of 1,313

55 of 677

1.0 points

-1.7 to 3.5

1,990NCT01751906

ABSORB III Randomized Controlled Trial (RCT)

Absorb BVS vs XIENCE: Number of Participants With Powered Secondary Endpoint: Ischemia Driven Target Vessel Revascularization (ID-TVR)66 of 1,313

25 of 677

1.3 points

-0.7 to 3.1

1,990NCT01751906

ABSORB III Randomized Controlled Trial (RCT)

Absorb BVS vs XIENCE: Number of Cardiac Death/TV-MI/ID-TLR (TLF)102 of 1,313

41 of 677

1.7 points

-0.7 to 3.9

1,990NCT01751906

ABSORB III Randomized Controlled Trial (RCT)

Absorb BVS vs XIENCE: Acute Success: Procedural Success (Subject Level Analysis)1,240 of 1,311

652 of 678

-1.6 points

-3.4 to 0.5

1,989NCT01751906

ABSORB III Randomized Controlled Trial (RCT)

Patients With Eligible Emergency Department Visits and a Dementia Diagnosis vs Patients With Eligible Emergency Department Visits Without Dementia Diagnosis: Percent of Eligible Emergency Department Visits With Completed Outreach547 of 1,237

304 of 752

3.8 points

-0.7 to 8.2

1,989NCT06933849

Coordinated Emergency Department Transitions

Standard WBI vs WBI, Trastuzumab: serious adverse events3 of 998

9 of 990

-0.6 points

-1.4 to 0.1

1,988NCT00769379

Radiation Therapy With or Without Trastuzumab in Treating Women With Ductal Carcinoma In Situ Who Have Undergone Lumpectomy

Intervention Clinics vs Control Clinics: deaths from any cause16 of 1,012

13 of 976

0.2 points

-0.9 to 1.4

1,988NCT03848728

Strategic Antiretroviral Therapy and HIV Testing for Youth in Rural Africa

Intervention Clinics vs Control Clinics: serious adverse events48 of 1,012

13 of 976

3.4 points

1.9 to 5.0

1,988NCT03848728

Strategic Antiretroviral Therapy and HIV Testing for Youth in Rural Africa

20vPnC vs 13vPnC: serious adverse events45 of 1,001

31 of 987

1.4 points

-0.3 to 3.1

1,988NCT04382326

20-valent Pneumococcal Conjugate Vaccine Safety and Immunogenicity Study of a 4-Dose Series in Healthy Infants

Capecitabine vs 5-Fluorouracil + Leucovorin: Relapse-Free Survival677 of 1,004

621 of 983

4.3 points

0.1 to 8.4

1,987NCT00009737

A Study of Xeloda (Capecitabine) Compared With 5-Fluorouracil in Combination With Low-Dose Leucovorin in Patients Who Have Undergone Surgery for Colon Cancer

Capecitabine vs 5-Fluorouracil + Leucovorin: Disease-free Survival656 of 1,004

603 of 983

4.0 points

-0.2 to 8.2

1,987NCT00009737

A Study of Xeloda (Capecitabine) Compared With 5-Fluorouracil in Combination With Low-Dose Leucovorin in Patients Who Have Undergone Surgery for Colon Cancer

Capecitabine vs 5-Fluorouracil + Leucovorin: Overall Survival804 of 1,004

756 of 983

3.2 points

-0.4 to 6.8

1,987NCT00009737

A Study of Xeloda (Capecitabine) Compared With 5-Fluorouracil in Combination With Low-Dose Leucovorin in Patients Who Have Undergone Surgery for Colon Cancer

Oral TDF-FTC vs Oral Placebo: Number of HIV-1 Infections of Oral TDF-FTC and Oral Placebo Arms61 of 985

60 of 999

0.2 points

-1.9 to 2.3

1,984NCT00705679

Safety and Effectiveness of TFV 1% Gel, TDF Tablets, and FTC/TDF Tablets in Preventing HIV in Women

Absorb BVS vs XIENCE: Number of Participants With Powered Secondary Endpoint: Angina238 of 1,303

125 of 678

-0.2 points

-3.9 to 3.3

1,981NCT01751906

ABSORB III Randomized Controlled Trial (RCT)

Request

GET /api/comparisons/v1

Words from a trial's title, conditions or interventions, its outcome or its groups, or an NCT number.

An outcome counted in participants, the serious adverse events, or the deaths from any cause.

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Code

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curl "https://conductscience.org/api/comparisons/v1?page=176"

Response

The first 2 of this page's 20 results. GET /api/comparisons/v1?page=176

{
  "data": {
    "total": 85013,
    "results": [
      {
        "id": "NCT00705679-b5d874a1",
        "title": "Oral TDF vs Oral Placebo: Number of HIV-1 Infections of Oral TDF and Oral Placebo Arms",
        "summary": "52 of 993 against 35 of 999; risk difference 1.7 points, 95% interval -0.1 to 3.6; NCT00705679, Safety and Effectiveness of TFV 1% Gel, TDF Tablets, and FTC/TDF Tablets in Preventing HIV in Women",
        "record": "/library/comparisons/NCT00705679-b5d874a1",
        "nct_id": "NCT00705679",
        "kind": "outcome",
        "participants": 1992,
        "risk_difference": {
          "value": 0.017331530926697092,
          "lower": -0.0007234807305026084,
          "upper": 0.035772807975588086
        },
        "group_1": "52 of 993",
        "group_2": "35 of 999",
        "difference": "1.7 points",
        "interval": "-0.1 to 3.6",
        "trial_title": "Safety and Effectiveness of TFV 1% Gel, TDF Tablets, and FTC/TDF Tablets in Preventing HIV in Women"
      },
      {
        "id": "NCT00705679-b5e3e0dc",
        "title": "TFV Gel vs Placebo Gel: Number of HIV-1 Infections of Tenofovir 1% Gel and Vaginal Placebo Gel Arms",
        "summary": "61 of 996 against 70 of 996; risk difference -0.9 points, 95% interval -3.1 to 1.3; NCT00705679, Safety and Effectiveness of TFV 1% Gel, TDF Tablets, and FTC/TDF Tablets in Preventing HIV in Women",
        "record": "/library/comparisons/NCT00705679-b5e3e0dc",
        "nct_id": "NCT00705679",
        "kind": "outcome",
        "participants": 1992,
        "risk_difference": {
          "value": -0.009036144578313254,
          "lower": -0.031064545670364253,
          "upper": 0.012893423006770752
        },
        "group_1": "61 of 996",
        "group_2": "70 of 996",
        "difference": "-0.9 points",
        "interval": "-3.1 to 1.3",
        "trial_title": "Safety and Effectiveness of TFV 1% Gel, TDF Tablets, and FTC/TDF Tablets in Preventing HIV in Women"
      }
    ],
    "no_events": 33758,
    "columns": [
      {
        "key": "title",
        "label": "Comparison"
      },
      {
        "key": "group_1",
        "label": "With the outcome",
        "under": "group_2"
      },
      {
        "key": "difference",
        "label": "Risk difference, 95% interval",
        "under": "interval"
      },
      {
        "key": "participants",
        "label": "Participants"
      },
      {
        "key": "nct_id",
        "label": "Trial",
        "under": "trial_title"
      }
    ],
    "order": "Most participants first",
    "kinds": {
      "all": 85013,
      "outcome": 33568,
      "serious-adverse-events": 31897,
      "deaths": 19548
    }
  },
  "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": "No license stated"
    }
  ],
  "next": "/api/comparisons/v1?page=177",
  "request_id": "dSt5_JUHAeYb42CJ"
}

Ask about these results. The first 10 go in the prompt.

About this data
Holds
85,013 comparisons
From ClinicalTrials.gov. Counted 10 Nov 2026.
Release
23 Mar 2026
trial-comparisons-2026-03-23-0.1.0
Checked
20 of 20 review comparisons traced to ClinicalTrials.gov, and all 510,078 numbers calculated again apart from the builder agree
Access
Open
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Sources 2

  • ClinicalTrials.gov's posted results, through CTTI's AACTFreely available. Acknowledgement requested
  • ClinicalTrials.govNo license stated
Each source's terms
  • ClinicalTrials.gov's posted results, through CTTI's AACTClinicalTrials.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
  • ClinicalTrials.govnone stated

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.

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