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Condition (MeSH)

Post-Infectious Disorders

ClinicalTrials.gov lists 736 trials for Post-Infectious Disorders or a narrower condition beneath it. VA Office of Research and Development has the most among industry and government lead sponsors, with 11.

MeSH D000094025 Pathological Conditions, Signs and Symptoms C23
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Phase 1 Phase 1 27 Phase 1/2 Phase 1/2 8 Phase 2 Phase 2 85 Phase 2/3 Phase 2/3 15 Phase 3 Phase 3 30 Phase 4 Phase 4 11 Not applicable Not applicable 312 Observational Observational 245 Phase 1 Phase 1 27 Phase 1/2 Phase 1/2 8 Phase 2 Phase 2 85 Phase 2/3 Phase 2/3 15 Phase 3 Phase 3 30 Phase 4 Phase 4 11 Not applicable Not applicable 312 Observational Observational 245

Trials per phase (log scale)

2 more sections with rows

4 of the 736 trials are tagged with Post-Infectious Disorders itself; the rest are tagged with a narrower condition beneath it.

Get the Post-Infectious Disorders 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 Post-Infectious Disorders 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.

Trials over time, by phase

  • Phase 1
  • Phase 1/2
  • Phase 2
  • Phase 2/3
  • Phase 3
  • Phase 4
  • Not applicable
  • Observational
  • Other (Unknown)

Top of scale: 168

1993: 1 trials (Not applicable 1) 1994: 1 trials (Observational 1) 1995: 3 trials (Observational 1, Not applicable 1, Phase 3 1) 1998: 1 trials (Observational 1) 2002: 1 trials (Phase 2 1) 2003: 1 trials (Phase 2 1) 2005: 3 trials (Observational 2, Phase 2 1) 2006: 2 trials (Observational 1, Phase 3 1) 2007: 2 trials (Not applicable 1, Phase 1 1) 2008: 2 trials (Observational 1, Phase 1 1) 2010: 5 trials (Observational 2, Phase 1 3) 2011: 2 trials (Not applicable 2) 2012: 3 trials (Observational 3) 2013: 2 trials (Observational 1, Phase 4 1) 2014: 4 trials (Observational 1, Phase 3 3) 2015: 5 trials (Observational 3, Not applicable 2) 2016: 5 trials (Observational 3, Not applicable 1, Phase 2 1) 2017: 1 trials (Observational 1) 2018: 4 trials (Observational 3, Not applicable 1) 2019: 14 trials (Observational 7, Not applicable 3, Phase 2/3 1, Phase 2 1, Phase 1/2 2) 2020: 28 trials (Observational 21, Not applicable 2, Phase 3 1, Phase 2 2, Phase 1 2) 2021: 93 trials (Observational 40, Not applicable 36, Phase 4 2, Phase 3 3, Phase 2/3 4, Phase 2 7, Phase 1/2 1) 2022: 146 trials (Other 1, Observational 63, Not applicable 60, Phase 4 1, Phase 3 4, Phase 2/3 1, Phase 2 10, Phase 1/2 1, Phase 1 5) 2023: 168 trials (Observational 34, Not applicable 87, Phase 4 3, Phase 3 5, Phase 2/3 5, Phase 2 27, Phase 1/2 1, Phase 1 6) 2024: 96 trials (Observational 19, Not applicable 51, Phase 4 3, Phase 3 6, Phase 2 13, Phase 1/2 1, Phase 1 3) 2025: 88 trials (Observational 20, Not applicable 44, Phase 4 1, Phase 3 4, Phase 2/3 3, Phase 2 12, Phase 1 4)

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) 53
2025 88
2024 96
2023 168
2022 146
2021 93
2020 28
2019 14
2018 4
2017 1

Forecast of the full-year count, planned starts included, not rows of this table: about 65 trials starting in 2026 and about 76 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 33 months from start to primary completion across 106 trials still running at the 2026-10-09 snapshot; registered median of 14 months across 360 trials with a primary completion typed Actual. Source: ClinicalTrials.gov / AACT (CTTI), public domain.

What phase are Post-Infectious Disorders trials in? (10)

Shown in this order: phase order.

Show the trials by phase as a table
Trials by phase
Phase Trials
Phase 1 27
Phase 1/2 8
Phase 2 85
Phase 2/3 15
Phase 3 30
Phase 4 11
Not applicable 312
Observational 245
Expanded access 2
Unknown 1

How many Post-Infectious Disorders 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 43
Recruiting 134
Enrolling by invitation 13
Active, not recruiting 43
Available 1

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

Which lead sponsors run the most Post-Infectious Disorders 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
VA Office of Research and Development 11
Adhera Health, Inc. 4

Which drugs are being tested for Post-Infectious Disorders? (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
Immunoglobulin 7
Efgartigimod 4
Remdesivir 3

Interventions as named in the registry (12)

Shown in this order: most trials first.

Interventions as named in the registry
Drug Trials
Hyperbaric Oxygen 6
Exercise 6
Acupuncture 5
Stellate Ganglion Block 4
data collection 3

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 Post-Infectious Disorders 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
Appendicitis 7 3
Musculoskeletal pain or injury 5 1
Pneumonia 5 4
Hospitalized for planned surgery 4 1
Abdominal pain 3 2

Sub-conditions in MeSH (5)

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: publications, prevalence, and rare-disease identity.

Browse all condition evidence pages