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Condition (MeSH)

Gram-Positive Bacterial Infections

ClinicalTrials.gov lists 3,345 trials for Gram-Positive Bacterial Infections or a narrower condition beneath it. GlaxoSmithKline has the most among industry and government lead sponsors, with 200.

MeSH D016908 Infections C01
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Phase 1 Phase 1 384 Phase 1/2 Phase 1/2 86 Phase 2 Phase 2 460 Phase 2/3 Phase 2/3 67 Phase 3 Phase 3 522 Phase 4 Phase 4 305 Not applicable Not applicable 645 Observational Observational 871 Phase 1 Phase 1 384 Phase 1/2 Phase 1/2 86 Phase 2 Phase 2 460 Phase 2/3 Phase 2/3 67 Phase 3 Phase 3 522 Phase 4 Phase 4 305 Not applicable Not applicable 645 Observational Observational 871

Trials per phase

1 more section with rows

57 of the 3,345 trials are tagged with Gram-Positive Bacterial Infections itself; the rest are tagged with a narrower condition beneath it.

Get the Gram-Positive Bacterial Infections report as a PDF

The PDF carries up to 50 rows of each section, where the page shows the first few, with the sources listed. Enter a work email and confirm it from the message we send, and the report follows by email.

When did Gram-Positive Bacterial Infections trials start? (37)

Shown in this order: most recent first, 1990 onwards. 2026 is partial: trials registered with a 2026 start date so far, not a full year. 12 trials are registered to start in 2027 or later, and not listed here.

Trials over time, by phase

  • Phase 1
  • Phase 1/2
  • Phase 2
  • Phase 2/3
  • Phase 3
  • Phase 4
  • Not applicable
  • Observational

Top of scale: 198

1990: 1 trials (Phase 2 1) 1991: 2 trials (Phase 4 1, Phase 2 1) 1992: 2 trials (Observational 1, Phase 2 1) 1993: 1 trials (Phase 2 1) 1994: 6 trials (Observational 1, Not applicable 1, Phase 4 3, Phase 2 1) 1995: 11 trials (Observational 7, Not applicable 1, Phase 3 2, Phase 1 1) 1996: 1 trials (Phase 4 1) 1997: 6 trials (Not applicable 1, Phase 4 2, Phase 3 2, Phase 1 1) 1998: 5 trials (Not applicable 1, Phase 3 1, Phase 2 2, Phase 1 1) 1999: 9 trials (Observational 1, Not applicable 2, Phase 3 1, Phase 2/3 1, Phase 2 3, Phase 1 1) 2000: 18 trials (Observational 4, Not applicable 6, Phase 4 1, Phase 3 5, Phase 2 2) 2001: 11 trials (Observational 1, Not applicable 1, Phase 4 2, Phase 3 5, Phase 2/3 1, Phase 2 1) 2002: 27 trials (Observational 7, Not applicable 1, Phase 4 3, Phase 3 9, Phase 2 4, Phase 1/2 1, Phase 1 2) 2003: 38 trials (Observational 4, Not applicable 3, Phase 4 9, Phase 3 9, Phase 2 6, Phase 1/2 1, Phase 1 6) 2004: 62 trials (Observational 12, Not applicable 6, Phase 4 10, Phase 3 13, Phase 2/3 2, Phase 2 7, Phase 1/2 4, Phase 1 8) 2005: 101 trials (Observational 28, Not applicable 8, Phase 4 10, Phase 3 31, Phase 2 12, Phase 1 12) 2006: 121 trials (Observational 30, Not applicable 6, Phase 4 13, Phase 3 47, Phase 2/3 2, Phase 2 13, Phase 1/2 2, Phase 1 8) 2007: 110 trials (Observational 21, Not applicable 16, Phase 4 12, Phase 3 37, Phase 2/3 2, Phase 2 5, Phase 1 17) 2008: 113 trials (Observational 26, Not applicable 12, Phase 4 17, Phase 3 23, Phase 2 19, Phase 1 16) 2009: 127 trials (Observational 30, Not applicable 24, Phase 4 8, Phase 3 23, Phase 2/3 2, Phase 2 20, Phase 1/2 4, Phase 1 16) 2010: 144 trials (Observational 34, Not applicable 15, Phase 4 20, Phase 3 17, Phase 2/3 2, Phase 2 30, Phase 1/2 3, Phase 1 23) 2011: 131 trials (Observational 35, Not applicable 16, Phase 4 16, Phase 3 27, Phase 2/3 1, Phase 2 19, Phase 1 17) 2012: 126 trials (Observational 37, Not applicable 18, Phase 4 18, Phase 3 15, Phase 2/3 4, Phase 2 17, Phase 1/2 2, Phase 1 15) 2013: 127 trials (Observational 28, Not applicable 24, Phase 4 11, Phase 3 16, Phase 2/3 2, Phase 2 21, Phase 1/2 5, Phase 1 20) 2014: 134 trials (Observational 30, Not applicable 27, Phase 4 15, Phase 3 20, Phase 2/3 5, Phase 2 24, Phase 1/2 6, Phase 1 7) 2015: 139 trials (Observational 37, Not applicable 35, Phase 4 7, Phase 3 15, Phase 2/3 2, Phase 2 22, Phase 1/2 5, Phase 1 16) 2016: 129 trials (Observational 34, Not applicable 25, Phase 4 16, Phase 3 11, Phase 2/3 2, Phase 2 17, Phase 1/2 2, Phase 1 22) 2017: 140 trials (Observational 40, Not applicable 32, Phase 4 11, Phase 3 13, Phase 2/3 3, Phase 2 15, Phase 1/2 9, Phase 1 17) 2018: 143 trials (Observational 41, Not applicable 35, Phase 4 9, Phase 3 16, Phase 2/3 5, Phase 2 21, Phase 1/2 2, Phase 1 14) 2019: 198 trials (Observational 64, Not applicable 38, Phase 4 11, Phase 3 27, Phase 2/3 4, Phase 2 30, Phase 1/2 9, Phase 1 15) 2020: 144 trials (Observational 46, Not applicable 31, Phase 4 9, Phase 3 18, Phase 2/3 6, Phase 2 17, Phase 1 17) 2021: 168 trials (Observational 59, Not applicable 46, Phase 4 14, Phase 3 13, Phase 2/3 3, Phase 2 22, Phase 1/2 1, Phase 1 10) 2022: 166 trials (Observational 45, Not applicable 33, Phase 4 15, Phase 3 26, Phase 2/3 4, Phase 2 24, Phase 1/2 6, Phase 1 13) 2023: 154 trials (Observational 38, Not applicable 37, Phase 4 9, Phase 3 18, Phase 2/3 3, Phase 2 20, Phase 1/2 6, Phase 1 23) 2024: 167 trials (Observational 48, Not applicable 42, Phase 4 8, Phase 3 21, Phase 2/3 4, Phase 2 16, Phase 1/2 9, Phase 1 19) 2025: 127 trials (Observational 34, Not applicable 30, Phase 4 7, Phase 3 12, Phase 2/3 5, Phase 2 15, Phase 1/2 3, Phase 1 21)

Trials registered with a start date in each year, 1990 onward, stacked by phase (complete years only; the current partial year is in the table's notes). The table below lists the same counts, most recent years first.

Trials started per year
Year Trials started
2026 (partial year) 160
2025 127
2024 167
2023 154
2022 166
2021 168
2020 144
2019 198
2018 143
2017 140

Forecast of the full-year count, planned starts included, not rows of this table: about 180 trials starting in 2026 and about 150 in 2027, the average of the 24 months through September, counted as registered and carried forward. The rows of this table count trials registered so far with a start date in the year, planned starts included; the forecast looks ahead to the count for the whole year, so it is not the same measure. In backtests on conditions of this size, forecasts made part-way through the year were typically off by about 13 percent and ran about 12 percent low against the count later registered; forecasts made before the year began were off by about 19 percent and ran about 17 percent low against the count later registered, and had about the same error as repeating last year's count. These figures rest on a few years of history (target years from 2018 to 2025, varying by figure), place each condition as it is mapped today rather than as it was then, and score against a count for the newest year that was still being revised. Only condition series were scored.

Prediction, not a registry value: median of 36 months from start to primary completion across 220 trials still running at the 2026-10-09 snapshot; registered median of 20 months across 2,189 trials with a primary completion typed Actual. Source: ClinicalTrials.gov / AACT (CTTI), public domain.

What phase are Gram-Positive Bacterial Infections trials in? (9)

Shown in this order: phase order.

Show the trials by phase as a table
Trials by phase
Phase Trials
Phase 1 384
Phase 1/2 86
Phase 2 460
Phase 2/3 67
Phase 3 522
Phase 4 305
Not applicable 645
Observational 871
Expanded access 5

How many Gram-Positive Bacterial Infections trials are recruiting? (12)

Shown in this order: the order a trial moves through, from not yet recruiting to unknown.

Trials by recruitment status
Status Trials
Not yet recruiting 140
Recruiting 270
Enrolling by invitation 17
Active, not recruiting 94
Available 1

Status as registered on ClinicalTrials.gov. Each trial is counted once.

Which lead sponsors run the most Gram-Positive Bacterial Infections trials? (7)

Shown in this order: most trials first. Lead sponsors the registry classes as industry, NIH, US federal, other government or network. A hospital or university the registry files as government can appear here. Sponsors it classes as academic or other are shown on the full page, because that class cannot separate an institution from a named investigator.

Lead sponsors
Sponsor Trials
GlaxoSmithKline 200
National Institute of Allergy and Infectious Diseases (NIAID) 154
Pfizer 88
Sanofi Pasteur, a Sanofi Company 67
Merck Sharp & Dohme LLC 63

Which drugs are being tested for Gram-Positive Bacterial Infections? (3)

Shown in this order: most trials first. One row per drug, matched to a single molecule under all its names, ranked by number of trials.

Drugs tested
Drug Trials
Bedaquiline 61
Rifabutin 33
Clofazimine 28

Interventions as named in the registry (12)

Shown in this order: most trials first.

Interventions as named in the registry
Drug Trials
Isoniazida 104
Rifampicin 90
Vancomycin 1.1% 74
Zyvox - linezolid 62
Pyrazinamide Oral Product 60

These are the names sponsors entered on ClinicalTrials.gov that we have not matched to a single molecule. Some are drugs under a brand or code name; others are procedures, doses or arm labels.

Which serious adverse events do Gram-Positive Bacterial Infections trials report? (10)

Shown in this order: most subjects affected first. Subjects affected summed across trials, a cross-trial signal, not a rate.

Serious adverse events in this condition's trials
Adverse event Subjects affected Trials
Pneumonia 2,358 195
Gastroenteritis 2,032 131
Bronchiolitis 1,820 75
Dehydration 1,127 81
Bronchitis 587 68

Which publications cover Gram-Positive Bacterial Infections? (323)

Shown in this order: major-topic papers first, then newest, then most linked to trials.

Sub-conditions in MeSH (6)

MeSH descendants one level down with at least one trial, most trials first.

Not on this page

Not measured: delivery record.

Checked, with nothing recorded for this condition: prevalence and rare-disease identity.

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