Adverse events24

Each adverse event the trial posted, group by group: the participants affected out of those at risk.

1 to 20 of 24

Type	Event	Organ system	Group	Affected	At risk	Events
other	Gastrointestinal disorders - Other, specify	Gastrointestinal disorders	Letrozole + MRI	5	90	5
other	Nausea	Gastrointestinal disorders	Letrozole + MRI	3	90	4
other	Fatigue	General disorders	Letrozole + MRI	1	90	2
other	Fever	General disorders	Letrozole + MRI	1	90	1
other	Allergic reaction	Immune system disorders	Letrozole + MRI	3	90	5
other	Fracture	Injury, poisoning and procedural complications	Letrozole + MRI	3	90	3
other	Cholesterol high	Investigations	Letrozole + MRI	4	90	6
other	Arthralgia	Musculoskeletal and connective tissue disorders	Letrozole + MRI	43	90	87
other	Back pain	Musculoskeletal and connective tissue disorders	Letrozole + MRI	1	90	1
other	Myalgia	Musculoskeletal and connective tissue disorders	Letrozole + MRI	19	90	28
other	Osteoporosis	Musculoskeletal and connective tissue disorders	Letrozole + MRI	5	90	8
other	Headache	Nervous system disorders	Letrozole + MRI	1	90	1
other	Depression	Psychiatric disorders	Letrozole + MRI	1	90	1
other	Insomnia	Psychiatric disorders	Letrozole + MRI	1	90	1
other	Hot flashes	Vascular disorders	Letrozole + MRI	50	90	103
other	Hypertension	Vascular disorders	Letrozole + MRI	16	90	25
serious	Heart failure	Cardiac disorders	Letrozole + MRI	1	90	1
serious	Restrictive cardiomyopathy	Cardiac disorders	Letrozole + MRI	1	90	1
serious	Fever	General disorders	Letrozole + MRI	1	90	1
serious	Hypokalemia	Metabolism and nutrition disorders	Letrozole + MRI	1	90	1

Source ClinicalTrials.govtrials-2026-11-12-0.5.0

ClinicalTrials.gov's posted results, through CTTI's AACTFreely available. Acknowledgement requested
ClinicalTrials.govNo license stated
NIH RePORTER's clinical studies and project filesPublic domain

Each source's terms

ClinicalTrials.gov's posted results, through CTTI's AACTClinicalTrials.gov data via Aggregate Analysis of ClinicalTrials.gov (AACT), CTTI. CTTI makes its materials freely available and requests acknowledgement. https://aact.ctti-clinicaltrials.org/documentation/299
ClinicalTrials.govnone stated
NIH RePORTER's clinical studies and project filesPublic domain (NIH RePORTER)

ClinicalTrials.gov's data carry an international copyright outside the United States: https://clinicaltrials.gov/about-site/terms-conditions.

For software

Read this list from software.

Twenty rows a page, as JSON. No key.

GET https://conductscience.org/api/trials/v1/NCT01439711/events