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Condition (MeSH)

Hypoxia

ClinicalTrials.gov lists 1,346 trials for Hypoxia or a narrower condition beneath it. Medtronic - MITG has the most among industry and government lead sponsors, with 13.

MeSH D000860 Pathological Conditions, Signs and Symptoms C23
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Phase 1 Phase 1 73 Phase 1/2 Phase 1/2 43 Phase 2 Phase 2 75 Phase 2/3 Phase 2/3 9 Phase 3 Phase 3 46 Phase 4 Phase 4 47 Not applicable Not applicable 670 Observational Observational 381 Phase 1 Phase 1 73 Phase 1/2 Phase 1/2 43 Phase 2 Phase 2 75 Phase 2/3 Phase 2/3 9 Phase 3 Phase 3 46 Phase 4 Phase 4 47 Not applicable Not applicable 670 Observational Observational 381

Trials per phase (log scale)

1 more section with rows

1,020 of the 1,346 trials are tagged with Hypoxia itself; the rest are tagged with a narrower condition beneath it.

Get the Hypoxia 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 Hypoxia trials start? (27)

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. 4 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: 111

1999: 5 trials (Not applicable 1, Phase 4 1, Phase 3 1, Phase 2 2) 2001: 2 trials (Observational 1, Not applicable 1) 2002: 10 trials (Observational 3, Not applicable 3, Phase 3 2, Phase 1/2 2) 2003: 7 trials (Not applicable 1, Phase 2/3 1, Phase 2 2, Phase 1/2 3) 2004: 6 trials (Not applicable 1, Phase 4 2, Phase 3 1, Phase 1 2) 2005: 8 trials (Observational 3, Not applicable 4, Phase 3 1) 2006: 19 trials (Observational 6, Not applicable 6, Phase 4 1, Phase 3 1, Phase 2 1, Phase 1 4) 2007: 16 trials (Observational 5, Not applicable 4, Phase 4 3, Phase 2 2, Phase 1/2 1, Phase 1 1) 2008: 15 trials (Observational 2, Not applicable 7, Phase 4 2, Phase 1/2 1, Phase 1 3) 2009: 22 trials (Observational 4, Not applicable 10, Phase 4 1, Phase 3 1, Phase 2 3, Phase 1/2 2, Phase 1 1) 2010: 37 trials (Observational 10, Not applicable 14, Phase 4 2, Phase 3 5, Phase 2 2, Phase 1 4) 2011: 35 trials (Observational 10, Not applicable 15, Phase 4 1, Phase 2 3, Phase 1/2 2, Phase 1 4) 2012: 48 trials (Observational 14, Not applicable 19, Phase 4 5, Phase 3 1, Phase 2 2, Phase 1/2 4, Phase 1 3) 2013: 50 trials (Observational 9, Not applicable 27, Phase 4 3, Phase 3 1, Phase 2 1, Phase 1/2 5, Phase 1 4) 2014: 39 trials (Observational 14, Not applicable 13, Phase 4 1, Phase 3 1, Phase 2 4, Phase 1/2 3, Phase 1 3) 2015: 58 trials (Observational 17, Not applicable 26, Phase 4 2, Phase 3 1, Phase 2/3 2, Phase 2 7, Phase 1/2 1, Phase 1 2) 2016: 73 trials (Observational 23, Not applicable 32, Phase 4 3, Phase 3 3, Phase 2/3 1, Phase 2 3, Phase 1/2 1, Phase 1 7) 2017: 56 trials (Observational 19, Not applicable 28, Phase 4 1, Phase 3 2, Phase 2 2, Phase 1/2 1, Phase 1 3) 2018: 77 trials (Observational 21, Not applicable 44, Phase 4 1, Phase 3 1, Phase 2 3, Phase 1/2 1, Phase 1 6) 2019: 55 trials (Observational 14, Not applicable 33, Phase 4 1, Phase 3 1, Phase 2 3, Phase 1/2 1, Phase 1 2) 2020: 111 trials (Observational 30, Not applicable 50, Phase 4 3, Phase 3 9, Phase 2/3 1, Phase 2 6, Phase 1/2 5, Phase 1 7) 2021: 86 trials (Observational 21, Not applicable 53, Phase 4 1, Phase 3 4, Phase 2/3 2, Phase 2 1, Phase 1/2 3, Phase 1 1) 2022: 97 trials (Observational 25, Not applicable 63, Phase 4 3, Phase 2 2, Phase 1/2 2, Phase 1 2) 2023: 101 trials (Observational 32, Not applicable 52, Phase 4 1, Phase 3 5, Phase 2 7, Phase 1/2 2, Phase 1 2) 2024: 110 trials (Observational 42, Not applicable 56, Phase 4 4, Phase 2/3 1, Phase 2 2, Phase 1 5) 2025: 98 trials (Observational 28, Not applicable 52, Phase 3 2, Phase 2 11, Phase 1/2 2, Phase 1 3)

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) 93
2025 98
2024 110
2023 101
2022 97
2021 86
2020 111
2019 55
2018 77
2017 56

Forecast of the full-year count, planned starts included, not rows of this table: about 110 trials starting in 2026 and about 100 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 116 trials still running at the 2026-10-09 snapshot; registered median of 14 months across 793 trials with a primary completion typed Actual. Source: ClinicalTrials.gov / AACT (CTTI), public domain.

What phase are Hypoxia trials in? (9)

Shown in this order: phase order.

Show the trials by phase as a table
Trials by phase
Phase Trials
Phase 1 73
Phase 1/2 43
Phase 2 75
Phase 2/3 9
Phase 3 46
Phase 4 47
Not applicable 670
Observational 381
Expanded access 2

How many Hypoxia trials are recruiting? (11)

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 80
Recruiting 160
Enrolling by invitation 16
Active, not recruiting 43
Available 1

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

Which lead sponsors run the most Hypoxia trials? (2)

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
Medtronic - MITG 13
Nihon Kohden 10

Which drugs are being tested for Hypoxia? (5)

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
PROPOFOL 11
SILDENAFIL 6
Pimonidazole 6
EPOETIN ALFA 6
DEXMEDETOMIDINE 6

Interventions as named in the registry (10)

Shown in this order: most trials first.

Interventions as named in the registry
Drug Trials
Hypoxia 20
Medicinal gas - oxygen (Nippon Gases 200 bar) 12
Acetazolamide Pill 11
Acute Intermittent Hypoxia (AIH) 9
Inhaled Nitric Oxide (iNO) use 6

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 Hypoxia 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
Other 60 3
Cardiac arrest 38 3
Respiratory failure 32 4
Death during intervention 29 1
Sepsis 26 4

Which publications cover Hypoxia? (2,095)

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

Sub-conditions in MeSH (3)

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.

Browse all condition evidence pages