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Bronchiolitis Obliterans Syndrome clinical trials

The registry lists 714 studies for Bronchiolitis Obliterans Syndrome across more than 10 countries. 128 are recruiting or about to start. 243 of them are mainly about Bronchiolitis Obliterans Syndrome (how this is decided). Per ClinicalTrials.gov, last updated 2026-11-12.

ClinicalTrials.gov finds 783 studies for Bronchiolitis Obliterans Syndrome. How that becomes 714 here

This page counts the studies the registry files under Bronchiolitis Obliterans Syndrome, and those it files under no condition that list Bronchiolitis Obliterans Syndromethemselves. Each study its search finds is placed by how the registry filed it and by the conditions it lists. ClinicalTrials.gov counts as of Nov 8, 2026. How condition pages count

  1. 783Found by its condition searchIt reads the conditions a study lists and their synonyms, and also titles and keywords.
  2. −75Match it another way21 name it in the title and 54 by a synonym or other text the search reads.
  3. 708Counted here and found by its search1 of them list Bronchiolitis Obliterans Syndrome in their own words; the registry filed them under no condition.
  4. +6
    Counted here, but its search does not find them
  5. 714The count on this page

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Status

Completed
390
Recruiting
100
Terminated
69
Status unknown
64
Active, not recruiting
39
Not yet recruiting
23

Phase

Phase 2
209
Phase 1
97
Phase 3
87
Phase 4
53
Early Phase 1
6

Where

United States
300
France
68
Canada
67
Germany
62
Spain
60
United Kingdom
59

Who runs them

Novartis Pharmaceuticals (17) · Hoffmann-La Roche (12) · Incyte Corporation (11) · Dana-Farber Cancer Institute (11) · Fred Hutchinson Cancer Center (11) · National Cancer Institute (NCI) (10) · AstraZeneca (9) · Pfizer (9)

What is being tested here

Drugs under test in Bronchiolitis Obliterans Syndrome studies, those with the most open studies first. Medicines only given beside them are not counted. How drugs are counted

DrugOpenPhase 3All
Belumosudil7214
Axatilimab5310
Ruxolitinib3211
Cyclophosphamide215
Entecavir202
Azithromycin124
Asciminib103
Fostamatinib103
JAK2 Inhibitor TQ05105102
Butylene glycol101

Drug classes tested here Tyrosine kinase inhibitors (TKIs) 7 open · JAK inhibitors 4 open · Alkylating agents 2 open · Local anesthetics 2 open · Corticosteroids 1 open

Coming up

11phase 3 studies under way
45studies finish main data collection within a year5 of them phase 3

Studies recruiting or running, from their records. “Main data collection” ends at the primary completion date, the sponsor’s own estimate, which often moves.

The 10 nearest, phase 3 first

Who these studies take

Of the 100 Bronchiolitis Obliterans Syndrome studies recruiting now, 45 (45%) set no upper age limit and 45 (45%) stop at 75 or younger. 25 (25%) take children under 18. 3 (3%) are for women only and 0 (0%) for men only; 12 (12%) take healthy volunteers.

Recruiting studies that take each age, of 100
AgeWomenMen
1015 (15%)14 (14%)
1891 (91%)88 (88%)
3093 (93%)90 (90%)
4095 (95%)92 (92%)
5093 (93%)90 (90%)
6589 (89%)87 (87%)
7562 (62%)60 (60%)
8548 (48%)46 (46%)

Across all 714 studies, recruiting or not: 37% stop at 75 or younger and 26% at 65; 18% take children; 2% are for women only and 1% for men only; 11% take healthy volunteers. From each study’s registry entry; the criteria on its page decide.

How long Bronchiolitis Obliterans Syndrome studies take

Of 63 phase 2 interventional studies under Bronchiolitis Obliterans Syndrome, half reached primary completion within 35 months of starting, counting those still running.

Start to primary completionEvery sponsorIndustryNon-industry
Phase 147 mo18–65 · 22 studies——
Phase 1/264 mo37–87 · 24 studies——
Phase 235 mo23–58 · 63 studies—43 mo27–70 · 38 studies
Phase 334 mo19–62 · 30 studies——
Phase 422 mo17–79 · 16 studies——
Interventional, no phase22 mo11–54 · 122 studies—21 mo11–50 · 110 studies
Observational40 mo20–62 · 57 studies—42 mo15–75 · 49 studies

Each figure is the month by which half the studies had reached primary completion, with the range in which the middle half did. Studies still running count until their last registry update; studies that stopped early are left out. Phase 1 includes early phase 1; observational means prospective or not stated, as retrospective and cross-sectional studies date a window of data rather than a study. How these figures are worked out

What changed recently

From the registry's own updates since Oct 14, 2026.

Started recruiting4

Stopped1

Newly registered5

Studies

Recruiting first, then most recently updated. Showing 50 of 714. Browse all 714 → or search them.