Adverse events164

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

1 to 20 of 164

Type	Event	Organ system	Group	Affected	At risk	Events
other	Headache	Nervous system disorders	VLA1553	986	3,082	1,028
other	Headache	Nervous system disorders	Placebo	160	1,033	178
other	Fatigue	General disorders	VLA1553	886	3,082	893
other	Fatigue	General disorders	Placebo	137	1,033	139
other	Myalgia	Musculoskeletal and connective tissue disorders	VLA1553	750	3,082	758
other	Myalgia	Musculoskeletal and connective tissue disorders	Placebo	82	1,033	84
other	Arthralgia	Musculoskeletal and connective tissue disorders	VLA1553	554	3,082	589
other	Arthralgia	Musculoskeletal and connective tissue disorders	Placebo	63	1,033	70
other	Injection site pain	General disorders	VLA1553	413	3,082	519
other	Injection site pain	General disorders	Placebo	101	1,033	122
other	Pyrexia	General disorders	VLA1553	427	3,082	429
other	Pyrexia	General disorders	Placebo	13	1,033	13
other	Nausea	Gastrointestinal disorders	VLA1553	359	3,082	364
other	Nausea	Gastrointestinal disorders	Placebo	63	1,033	64
other	Rash	Skin and subcutaneous tissue disorders	VLA1553	82	3,082	86
other	Rash	Skin and subcutaneous tissue disorders	Placebo	12	1,033	12
other	COVID-19	Infections and infestations	VLA1553	59	3,082	70
other	COVID-19	Infections and infestations	Placebo	22	1,033	23
other	Vomiting	Gastrointestinal disorders	VLA1553	66	3,082	67
other	Vomiting	Gastrointestinal disorders	Placebo	14	1,033	14

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/NCT04546724/events