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Labor Pain clinical trials

The registry lists 423 studies for Labor Pain across more than 10 countries. 74 are recruiting or about to start. 395 of them are mainly about Labor Pain (how this is decided). Per ClinicalTrials.gov, last updated 2026-11-10.

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Status

Completed
265
Status unknown
40
Not yet recruiting
37
Recruiting
30
Terminated
19
Withdrawn
13

Phase

Phase 4
42
Phase 3
20
Phase 2
15
Phase 1
3
Early Phase 1
1

Where

Turkey
119
United States
81
Canada
33
Egypt
19
China
19
Israel
12

Who runs them

Samuel Lunenfeld Research Institute, Mount Sinai Hospital (22) · Ataturk University (10) · Istanbul University - Cerrahpasa (10) · Northwestern University (9) · Nanjing Medical University (7) · Selcuk University (7) · Stanford University (6) · Ain Shams University (6)

What is being tested here

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

DrugOpenPhase 3All
Bupivacaine2217
Ropivacaine216
Fentanyl1112
Acetaminophen126
Dexmedetomidine115
Morphine114
Hydromorphone103
Nalbuphine102
Tramadol101
Papaverine101

Drug classes tested here Opioids 4 open · Local anesthetics 4 open

Coming up

1phase 3 study under way
22studies 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 30 Labor Pain studies recruiting now, 8 (27%) set no upper age limit and 22 (73%) stop at 75 or younger. 3 (10%) take children under 18. 29 (97%) are for women only and 0 (0%) for men only; 20 (67%) take healthy volunteers.

Recruiting studies that take each age, of 30
AgeWomenMen
101 (3%)0 (0%)
1828 (93%)0 (0%)
3029 (97%)0 (0%)
4025 (83%)0 (0%)
5014 (47%)0 (0%)
658 (27%)0 (0%)
758 (27%)0 (0%)
858 (27%)0 (0%)

Across all 423 studies, recruiting or not: 73% stop at 75 or younger and 73% at 65; 10% take children; 98% are for women only and 0% for men only; 61% take healthy volunteers. From each study’s registry entry; the criteria on its page decide.

How long Labor Pain studies take

Of 20 phase 4 interventional studies under Labor Pain, half reached primary completion within 28 months of starting, counting those still running.

Start to primary completionEvery sponsorIndustryNon-industry
Phase 428 mo11–… · 20 studies——
Interventional, no phase9 mo5–14 · 193 studies—9 mo5–14 · 191 studies
Observational9 mo6–32 · 31 studies—9 mo6–32 · 30 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.

Newly registered6

Show 1 more

Studies

Recruiting first, then most recently updated. Showing 50 of 423. Browse all 423 → or search them.