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Medication Adherence clinical trials

The registry lists 937 studies for Medication Adherence across more than 10 countries. 159 are recruiting or about to start. 344 of them are mainly about Medication Adherence (how this is decided). Per ClinicalTrials.gov, last updated 2026-11-10. Counting its narrower condition Directly Observed Therapy too: 966 studies, 163 open.

ClinicalTrials.gov finds 2,156 studies for Medication Adherence. How that becomes 936 here

This page counts the studies the registry files under Medication Adherence, and those it files under no condition that list Medication Adherencethemselves. 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. 2,156Found by its condition searchIt reads the conditions a study lists and their synonyms, and also titles and keywords.
  2. −29Filed under a narrower condition, counted on its own pageDirectly Observed Therapy 29
  3. −5List Medication Adherence as a condition, but the registry did not file them under itMost often written as “Poor Medication Adherence” (2), “Rate of Post-discharge Medication Adherence” (1), and “Glaucoma Medication Adherence” (1). The registry filed them under other conditions only, most often Patient Compliance (1) and Asthma (1).
  4. −1,186Match it another way257 name it in the title, 17 in a keyword, and 912 by a synonym or other text the search reads.
  5. 936The count on this page4 of them list Medication Adherence in their own words; the registry filed them under no condition.

Get an email when these change. Save the Medication Adherence studies recruiting or about to start — once a week, free: studies that open, close, add sites or post results.

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Example · made-up studies

Breast cancer · Recruiting: 2 came in, 3 changed

What changed in your saved searches, Oct 31 – Nov 6:

A study of drug A after surgery for early breast cancer

Came in · now Recruiting

Drug B with hormone therapy in advanced breast cancer

Changed

· Sites: 4 added, including Seoul and Busan

· Enrollment: 300 → 450 participants

Exercise during chemotherapy

Now Active, not recruiting

One email a week for all your saved searches. Stop any time.

Status

Completed
601
Status unknown
92
Recruiting
80
Not yet recruiting
63
Terminated
33
Active, not recruiting
30

Phase

Phase 4
24
Phase 2
21
Phase 3
19
Phase 1
17
Early Phase 1
8

Where

United States
462
Canada
37
Turkey
36
China
21
Spain
21
Switzerland
19

Who runs them

Brigham and Women's Hospital (20) · Johns Hopkins University (17) · Massachusetts General Hospital (16) · Duke University (14) · University of Pennsylvania (13) · Northwestern University (11) · University of Washington (9) · Medical University of South Carolina (9)

What is being tested here

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

DrugOpenPhase 3All
Aspirin/Simvastatin/Atenolol/Ramipril/Thiazide Capsule112
Ribociclib101
Piracetam101
Tenofovir005
Tacrolimus024
Emtricitabine003
Emtricitabine tenofovir alafenamide002
Varenicline002
Elexacaftor001
Tezacaftor001

Drug classes tested here Reverse transcriptase inhibitors 6 · Antipsychotics 3

Coming up

3phase 3 studies under way
77studies finish main data collection within a year1 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 80 Medication Adherence studies recruiting now, 52 (65%) set no upper age limit and 20 (25%) stop at 75 or younger. 15 (19%) take children under 18. 7 (9%) are for women only and 3 (4%) for men only; 12 (15%) take healthy volunteers.

Recruiting studies that take each age, of 80
AgeWomenMen
107 (9%)7 (9%)
1857 (71%)53 (66%)
3057 (71%)52 (65%)
4059 (74%)54 (68%)
5060 (75%)55 (69%)
6562 (78%)57 (71%)
7558 (73%)53 (66%)
8555 (69%)50 (63%)

Across all 937 studies, recruiting or not: 25% stop at 75 or younger and 20% at 65; 17% take children; 5% are for women only and 3% for men only; 16% take healthy volunteers. From each study’s registry entry; the criteria on its page decide.

How long Medication Adherence studies take

Of 442 interventional studies with no phase under Medication Adherence, half reached primary completion within 21 months of starting, counting those still running.

Start to primary completionEvery sponsorIndustryNon-industry
Interventional, no phase21 mo11–41 · 442 studies—22 mo11–42 · 425 studies
Observational32 mo12–64 · 54 studies—32 mo12–64 · 51 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 11, 2026.

Started recruiting4

Results posted2

Newly registered12

Show 7 more

Studies

Recruiting first, then most recently updated. Showing 50 of 937. Browse all 937 → or search them.