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Postoperative Complications clinical trials

The registry lists 1,332 studies for Postoperative Complications across more than 10 countries. 311 are recruiting or about to start. 568 of them are mainly about Postoperative Complications (how this is decided). Per ClinicalTrials.gov, last updated 2026-11-10. Counting its 25 narrower conditions too, such as Postoperative Pain: 5,421 studies, 1,264 open.

ClinicalTrials.gov finds 12,054 studies for Postoperative Complications. How that becomes 1,331 here

This page counts the studies the registry files under Postoperative Complications, and those it files under no condition that list Postoperative Complicationsthemselves. 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. 12,054Found by its condition searchIt reads the conditions a study lists and their synonyms, and also titles and keywords.
  2. −3,981Filed under a narrower condition, counted on its own pageEmergence Delirium 713 · Surgical Wound Infection 692 · Postoperative Nausea and Vomiting 583 · Reperfusion Injury 241 · Anastomotic Leak 210 · Postoperative Cognitive Complications 170 · 18 more
  3. −12List Postoperative Complications as a condition, but the registry did not file them under itMost often written as “Postoperative Complications After Gastrointestinal Operations” (2), “Colorectal Cancer Postoperative Complications” (2), and “Vascular Postoperative Complications” (1). The registry filed 8 of them under no condition at all, and the others under other conditions only, most often Lymphocele (1) and Pain (1).
  4. −6,730Match it another way199 name it in the title, 8 in a keyword, and 6,523 by a synonym or other text the search reads.
  5. 1,331The count on this page

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Status

Completed
702
Status unknown
207
Recruiting
202
Not yet recruiting
100
Active, not recruiting
45
Terminated
42

Phase

Phase 4
88
Phase 3
60
Phase 2
45
Phase 1
14
Early Phase 1
2

Where

China
157
United States
154
Turkey
142
Spain
69
France
64
Italy
58

Who runs them

Peking University First Hospital (18) · Rigshospitalet, Denmark (11) · Cairo University (10) · Assiut University (10) · Seoul National University Hospital (9) · Universitätsklinikum Hamburg-Eppendorf (9) · Xijing Hospital (8) · Karolinska Institutet (8)

What is being tested here

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

DrugOpenPhase 3All
Dexmedetomidine6216
Propofol308
Dexamethasone2014
Chlorhexidine213
Remimazolam202
Vancomycin212
Bupivacaine106
Ferric carboxymaltose105
Methylprednisolone105
Glepaglutide122

Drug classes tested here Corticosteroids 3 open · Local anesthetics 1 open · Opioids 1 open · Inhaled anesthetics 1 open · NSAIDs 5

Coming up

7phase 3 studies under way
104studies finish main data collection within a year

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

Who these studies take

Of the 202 Postoperative Complications studies recruiting now, 126 (62%) set no upper age limit and 32 (16%) stop at 75 or younger. 25 (12%) take children under 18. 6 (3%) are for women only and 3 (1%) for men only; 25 (12%) take healthy volunteers.

Recruiting studies that take each age, of 202
AgeWomenMen
1020 (10%)21 (10%)
18160 (79%)157 (78%)
30161 (80%)158 (78%)
40162 (80%)159 (79%)
50166 (82%)163 (81%)
65181 (90%)178 (88%)
75175 (87%)173 (86%)
85147 (73%)147 (73%)

Across all 1,332 studies, recruiting or not: 20% stop at 75 or younger and 14% at 65; 12% take children; 7% are for women only and 1% for men only; 15% take healthy volunteers. From each study’s registry entry; the criteria on its page decide.

How long Postoperative Complications studies take

Of 46 phase 4 interventional studies under Postoperative Complications, half reached primary completion within 25 months of starting, counting those still running.

Start to primary completionEvery sponsorIndustryNon-industry
Phase 224 mo13–48 · 13 studies——
Phase 332 mo15–59 · 20 studies——
Phase 425 mo19–32 · 46 studies—25 mo19–32 · 45 studies
Interventional, no phase21 mo8–45 · 395 studies—20 mo8–44 · 391 studies
Observational23 mo10–39 · 281 studies—22 mo10–40 · 276 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 13, 2026.

Started recruiting2

Newly registered18

Show 13 more

Studies

Recruiting first, then most recently updated. Showing 50 of 1,332. Browse all 1,332 → or search them.