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Muscle Cramp clinical trials

The registry lists 65 studies for Muscle Cramp across more than 10 countries. 9 are recruiting or about to start. 34 of them are mainly about Muscle Cramp (how this is decided). Per ClinicalTrials.gov, last updated 2026-11-02.

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Status

Completed
43
Not yet recruiting
6
Terminated
5
Status unknown
4
Active, not recruiting
3
Recruiting
3

Phase

Phase 2
11
Phase 3
7
Phase 4
5
Phase 1
3
Early Phase 1
1

Where

United States
27
Turkey
7
Egypt
5
Canada
3
Korea, Republic of
3
Switzerland
3

Who runs them

Chinese University of Hong Kong (2) · Flex Pharma, Inc. (2) · Mayo Clinic (2) · University of Michigan (2) · Purdue University (2) · National Institute of Mental Health (NIMH) (2) · University of Texas Southwestern Medical Center (2) · Yonsei University (2)

What is being tested here

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

DrugOpenPhase 3All
Orphenadrine111
Simvastatin002
Baclofen002
Amino Acids, Branched-Chain001
Hydroxychloroquine001
Ropinirole001
Tolperisone001
Pregabalin011
Mexiletine001
Botulinum toxin type A001

Drug classes tested here Statins 3

Coming up

2phase 3 studies under way
2studies 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.

All 2

Who these studies take

Of the 3 Muscle Cramp studies recruiting now, 2 (67%) set no upper age limit and 1 (33%) stop at 75 or younger. 1 (33%) take children under 18. 0 (0%) are for women only and 0 (0%) for men only; 2 (67%) take healthy volunteers.

Recruiting studies that take each age, of 3
AgeWomenMen
101 (33%)1 (33%)
182 (67%)2 (67%)
302 (67%)2 (67%)
403 (100%)3 (100%)
503 (100%)3 (100%)
653 (100%)3 (100%)
753 (100%)3 (100%)
852 (67%)2 (67%)

Across all 65 studies, recruiting or not: 37% stop at 75 or younger and 31% at 65; 15% take children; 12% are for women only and 0% for men only; 25% take healthy volunteers. From each study’s registry entry; the criteria on its page decide.

How long Muscle Cramp studies take

Of 20 interventional studies with no phase under Muscle Cramp, half reached primary completion within 8 months of starting, counting those still running.

Start to primary completionEvery sponsorIndustryNon-industry
Interventional, no phase8 mo3–11 · 20 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

Studies

Recruiting first, then most recently updated. Showing 50 of 65. Browse all 65 → or search them.