Condition (MeSH)
Mental Fatigue
ClinicalTrials.gov lists 246 trials for Mental Fatigue or a narrower condition beneath it. Vastra Gotaland Region has the most among industry and government lead sponsors, with 4.
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Trials per phase (log scale)
171 of the 246 trials are tagged with Mental Fatigue itself; the rest are tagged with a narrower condition beneath it.
When did Mental Fatigue trials start? (20)
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. 1 trial is registered to start in 2027 or later, and not listed here.
Trials over time, by phase
- Phase 1
- Phase 2
- Phase 3
- Phase 4
- Not applicable
- Observational
Top of scale: 41
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.
| Year | Trials started |
|---|---|
| 2026 (partial year) | 47 |
| 2025 | 41 |
| 2024 | 31 |
| 2023 | 22 |
| 2022 | 27 |
| 2021 | 22 |
| 2020 | 9 |
| 2019 | 6 |
| 2018 | 5 |
| 2017 | 12 |
Showing 10 of 20 earlier years.
Forecast of the full-year count, planned starts included, not rows of this table: about 58 trials starting in 2026 and about 46 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 25 months from start to primary completion across 21 trials still running at the 2026-10-09 snapshot; registered median of 7 months across 143 trials with a primary completion typed Actual. Source: ClinicalTrials.gov / AACT (CTTI), public domain.
What phase are Mental Fatigue trials in? (7)
Shown in this order: phase order.
Show the trials by phase as a table
| Phase | Trials |
|---|---|
| Phase 1 | 5 |
| Phase 2 | 13 |
| Phase 2/3 | 1 |
| Phase 3 | 1 |
| Phase 4 | 4 |
| Not applicable | 169 |
| Observational | 53 |
How many Mental Fatigue trials are recruiting? (7)
Shown in this order: the order a trial moves through, from not yet recruiting to unknown.
| Status | Trials |
|---|---|
| Not yet recruiting | 29 |
| Recruiting | 34 |
| Enrolling by invitation | 5 |
| Active, not recruiting | 8 |
| Completed | 130 |
Showing 5 of 7 statuses.
Status as registered on ClinicalTrials.gov. Each trial is counted once.
Which lead sponsors run the most Mental Fatigue 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.
| Sponsor | Trials |
|---|---|
| Vastra Gotaland Region | 4 |
| PepsiCo Global R&D | 3 |
Which drugs are being tested for Mental Fatigue? (2)
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.
| Drug | Trials |
|---|---|
| Microcrystalline Cellulose | 2 |
| Cyanocobalamin | 2 |
Interventions as named in the registry (13)
Shown in this order: most trials first.
| Drug | Trials |
|---|---|
| citrate of caffeine | 3 |
| Control Arm | 2 |
| OSU 6162 | 2 |
| Pharmaton PHL 00749 | 1 |
| Acupuncture | 1 |
Showing 5 of 13 interventions.
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 Mental Fatigue trials report? (2)
Shown in this order: most subjects affected first. Subjects affected summed across trials, a cross-trial signal, not a rate.
| Adverse event | Subjects affected | Trials |
|---|---|---|
| Newly Diagnosed Basal Cell Carcinoma | 1 | 1 |
| Vasovagal response | 1 | 1 |
Which publications cover Mental Fatigue? (118)
Shown in this order: major-topic papers first, then newest, then most linked to trials.
| Publication | Journal | Year | Major topic |
|---|---|---|---|
| Mental Fatigue Negatively Impacts Cognitive and Physical Performance Outcomes: A Large-Scale Randomized Crossover Trial. | Medicine and science in sports and exercise | 2026 | Yes |
| Does music counteract mental fatigue? A systematic review. | PloS one | 2025 | Yes |
| Music boosts the recovery of attention after mental fatigue in healthy young male subjects: A human auditory event-related potential study. | Behavioural brain research | 2025 | Yes |
| Cognitive fatigue did not significantly influence youth's total energy intake or snack food consumption during a randomized trial. | Journal of behavioral medicine | 2025 | Yes |
| The Effect of Experimentally Induced Cognitive Fatigue on Energy Intake Among Youth With and Without Recent Reported Dietary Restraint. | The International journal of eating disorders | 2025 | Yes |
Showing 5 of 118 publications.
Sub-conditions in MeSH (2)
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.