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Condition (MeSH)

Radiation Injuries

ClinicalTrials.gov lists 827 trials for Radiation Injuries or a narrower condition beneath it. Radiation Therapy Oncology Group has the most among industry and government lead sponsors, with 16.

MeSH D011832 Wounds and Injuries C26
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Phase 1 Phase 1 36 Phase 1/2 Phase 1/2 23 Phase 2 Phase 2 130 Phase 2/3 Phase 2/3 12 Phase 3 Phase 3 78 Phase 4 Phase 4 19 Not applicable Not applicable 258 Observational Observational 271 Phase 1 Phase 1 36 Phase 1/2 Phase 1/2 23 Phase 2 Phase 2 130 Phase 2/3 Phase 2/3 12 Phase 3 Phase 3 78 Phase 4 Phase 4 19 Not applicable Not applicable 258 Observational Observational 271

Trials per phase (log scale)

324 of the 827 trials are tagged with Radiation Injuries itself; the rest are tagged with a narrower condition beneath it.

Get the Radiation Injuries 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 Radiation Injuries trials start? (35)

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. 3 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: 73

1991: 1 trials (Observational 1) 1993: 1 trials (Observational 1) 1994: 1 trials (Phase 3 1) 1995: 1 trials (Phase 2 1) 1996: 4 trials (Observational 1, Phase 3 2, Phase 1/2 1) 1997: 6 trials (Observational 2, Phase 3 1, Phase 2 2, Phase 1/2 1) 1998: 5 trials (Phase 3 2, Phase 2 3) 1999: 1 trials (Phase 3 1) 2000: 8 trials (Observational 1, Not applicable 1, Phase 4 1, Phase 3 3, Phase 2 2) 2001: 16 trials (Observational 3, Not applicable 2, Phase 3 6, Phase 2 2, Phase 1/2 3) 2002: 5 trials (Phase 3 2, Phase 2 2, Phase 1 1) 2003: 8 trials (Observational 2, Not applicable 2, Phase 2 4) 2004: 3 trials (Observational 1, Phase 3 1, Phase 2 1) 2005: 8 trials (Observational 2, Not applicable 1, Phase 4 2, Phase 3 1, Phase 2 1, Phase 1/2 1) 2006: 13 trials (Observational 4, Not applicable 1, Phase 3 2, Phase 2 4, Phase 1 2) 2007: 17 trials (Observational 1, Not applicable 2, Phase 3 6, Phase 2/3 1, Phase 2 4, Phase 1 3) 2008: 23 trials (Observational 13, Not applicable 2, Phase 3 3, Phase 2 4, Phase 1/2 1) 2009: 13 trials (Observational 2, Not applicable 3, Phase 3 3, Phase 2/3 1, Phase 2 3, Phase 1 1) 2010: 14 trials (Observational 4, Not applicable 2, Phase 3 1, Phase 2/3 1, Phase 2 5, Phase 1/2 1) 2011: 22 trials (Observational 9, Not applicable 2, Phase 4 2, Phase 3 2, Phase 2/3 1, Phase 2 4, Phase 1 2) 2012: 15 trials (Observational 6, Not applicable 2, Phase 3 2, Phase 2 2, Phase 1/2 2, Phase 1 1) 2013: 21 trials (Observational 6, Not applicable 9, Phase 3 1, Phase 2 4, Phase 1 1) 2014: 26 trials (Observational 12, Not applicable 6, Phase 2 6, Phase 1 2) 2015: 35 trials (Observational 9, Not applicable 8, Phase 4 1, Phase 3 8, Phase 2 6, Phase 1/2 1, Phase 1 2) 2016: 26 trials (Observational 10, Not applicable 7, Phase 4 2, Phase 2 6, Phase 1 1) 2017: 29 trials (Observational 12, Not applicable 12, Phase 3 2, Phase 2 2, Phase 1 1) 2018: 40 trials (Observational 14, Not applicable 16, Phase 4 2, Phase 3 1, Phase 2/3 1, Phase 2 5, Phase 1 1) 2019: 59 trials (Observational 20, Not applicable 19, Phase 3 7, Phase 2/3 1, Phase 2 9, Phase 1/2 1, Phase 1 2) 2020: 54 trials (Observational 19, Not applicable 21, Phase 3 3, Phase 2 6, Phase 1/2 1, Phase 1 4) 2021: 73 trials (Observational 27, Not applicable 28, Phase 4 5, Phase 3 1, Phase 2/3 2, Phase 2 3, Phase 1/2 4, Phase 1 3) 2022: 57 trials (Observational 18, Not applicable 27, Phase 2/3 2, Phase 2 7, Phase 1/2 1, Phase 1 2) 2023: 64 trials (Observational 20, Not applicable 25, Phase 4 1, Phase 3 3, Phase 2 9, Phase 1/2 3, Phase 1 3) 2024: 59 trials (Observational 18, Not applicable 22, Phase 4 2, Phase 3 2, Phase 2 11, Phase 1/2 2, Phase 1 2) 2025: 50 trials (Observational 17, Not applicable 19, Phase 3 7, Phase 2/3 1, Phase 2 6)

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) 45
2025 50
2024 59
2023 64
2022 57
2021 73
2020 54
2019 59
2018 40
2017 29

Forecast of the full-year count, planned starts included, not rows of this table: about 56 trials starting in 2026 and about 52 in 2027, the average of the 24 months through September, counted as registered and carried forward, with about 0.7 times the starts already registered for the rest of 2026 added. 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 15 percent and ran about 1 percent high against the count later registered; forecasts made before the year began were off by about 26 percent and ran about 20 percent low against the count later registered. The part-way figures are from forecasts that used a multiple fitted only on earlier years. 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 95 trials still running at the 2026-10-09 snapshot; registered median of 32 months across 396 trials with a primary completion typed Actual. Source: ClinicalTrials.gov / AACT (CTTI), public domain.

What phase are Radiation Injuries trials in? (8)

Shown in this order: phase order.

Show the trials by phase as a table
Trials by phase
Phase Trials
Phase 1 36
Phase 1/2 23
Phase 2 130
Phase 2/3 12
Phase 3 78
Phase 4 19
Not applicable 258
Observational 271

How many Radiation Injuries trials are recruiting? (9)

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 47
Recruiting 152
Enrolling by invitation 7
Active, not recruiting 38
Completed 321

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

Which lead sponsors run the most Radiation Injuries trials? (3)

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
Radiation Therapy Oncology Group 16
National Cancer Institute (NCI) 9
Children's Oncology Group 7

Which drugs are being tested for Radiation Injuries? (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
Cytoxan 11
Amifostine 11
Dexrazoxane 9
(nab)-paclitaxel 9
TRASTUZUMAB 7

Interventions as named in the registry (10)

Shown in this order: most trials first.

Interventions as named in the registry
Drug Trials
Radiation Therapy 34
Cisplatin 1 17
Doxorubicine 15
Radiotherapy 14
Hyperbaric Oxygen 8

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 Radiation Injuries 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
Dehydration 90 13
Neutrophil count decreased 79 6
Nausea 74 12
Radiation dermatitis 70 1
Dyspnea 69 8

Which publications cover Radiation Injuries? (1,352)

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

Sub-conditions in MeSH (13)

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