Sick Sinus Syndrome clinical trials

The registry lists 93 studies for Sick Sinus Syndrome across more than 10 countries. 18 are recruiting or about to start. 57 of them are mainly about Sick Sinus Syndrome (how this is decided). Per ClinicalTrials.gov, last updated 2026-11-10.

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Status

Completed: 46
Status unknown: 18
Recruiting: 12
Terminated: 9
Not yet recruiting: 5
Withdrawn: 1

Phase

Phase 4: 11
Phase 3: 5
Phase 2: 2

Where

United States: 23
Italy: 14
France: 13
China: 13
Germany: 12
United Kingdom: 9

Who runs them

Abbott Medical Devices (11) · Medtronic Cardiac Rhythm and Heart Failure (7) · Boston Scientific Corporation (5) · Biotronik SE & Co. KG (4) · Medtronic BRC (4) · LivaNova (3) · Tongji Hospital (2) · China National Center for Cardiovascular Diseases (2)

Coming up

0phase 3 studies under way

3studies 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 3

Jun 2027Predicting Severe Cardiac Arrhythmias in the Perioperative Period Using AI-ECG · I.M. Sechenov First Moscow State Medical University
Jul 2027LEAP 2 Chronic EFS · Abbott Medical Devices
Sep 2027Transjugular Approach for Implantation of Active Fixation Leadless Pacemakers · Min Shen

Who these studies take

Of the 12 Sick Sinus Syndrome studies recruiting now, 6 (50%) set no upper age limit and 4 (33%) stop at 75 or younger. 0 (0%) take children under 18. 0 (0%) are for women only and 0 (0%) for men only; 1 (8%) take healthy volunteers.

Recruiting studies that take each age, of 12
Age	Women	Men
10	0 (0%)	0 (0%)
18	11 (92%)	11 (92%)
30	11 (92%)	11 (92%)
40	11 (92%)	11 (92%)
50	11 (92%)	11 (92%)
65	9 (75%)	9 (75%)
75	8 (67%)	8 (67%)
85	8 (67%)	8 (67%)

Across all 93 studies, recruiting or not: 11% stop at 75 or younger and 5% at 65; 9% take children; 0% are for women only and 0% for men only; 2% take healthy volunteers. From each study’s registry entry; the criteria on its page decide.

How long Sick Sinus Syndrome studies take

Of 22 interventional studies with no phase under Sick Sinus Syndrome, half reached primary completion within 24 months of starting, counting those still running.

Start to primary completion	Every sponsor	Industry	Non-industry
Interventional, no phase	24 mo15–47 · 22 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 recruiting1

Transjugular Approach for Implantation of Active Fixation Leadless PacemakersNov 10, 2026NCT07802119

Newly registered2

Multimodality Location Prediction Accuracy of Leadless Pacemaker PositioningNov 2, 2026NCT07908927
Belgo-Luxembourg Leadless PM RegistryOct 19, 2026NCT07879716

Studies

Recruiting first, then most recently updated. Showing 50 of 93. Browse all 93 → or search them.