Reported Reactions

Adverse event reports that FDA received

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Gastric cancer adverse event reports that record this term

Kind of term
MedDRA preferred term

What a report is

A report is not proof that the drug was the cause of the event.

FDA says:

Adverse event reports submitted to FDA do not undergo extensive validation or verification. Therefore, a causal relationship cannot be established between product and reactions listed in a report. While a suspected relationship may exist, it is not medically validated and should not be the sole source of information for clinical decision making or other assumptions about the safety or efficacy of a product. Additionally, it is important to remember that adverse event reports represent a small percentage of total usage numbers of a product. Common products may have a higher number of adverse events due to the higher total number of people using the product.

Source: openFDA, Drug Adverse Event Overview, section "Responsible use of the data". The site read the page on . The data have the reports that FDA received through .

FDA also says:

There is no certainty that the reported event (adverse event or medication error) was actually due to the product. FDA does not require that a causal relationship between a product and event be proven, and reports do not always contain enough detail to properly evaluate an event. The information in these reports has not been scientifically or otherwise verified as to a cause and effect relationship and cannot be used to estimate the incidence of these events.

Source: openFDA, Drug Adverse Event Overview. The site read the page on .

Do not rely on openFDA to make decisions regarding medical care. While we make every effort to ensure that data is accurate, you should assume all results are unvalidated.

Source: openFDA, Response of the drug event API (meta.disclaimer). The site read the page on .

Not medical advice. This site counts what was reported to FDA. Questions about a medicine or device belong with a pharmacist or clinician.

Reports on file

From January 2004 to June 2026, FDA received 25,271 adverse event reports that record the MedDRA preferred term Gastric cancer. The person who codes a report selects the term that agrees best with the description of the reporter.

FDA received 404 reports in the 12 months to June 2026 and 281 in the 12 months before. FDA releases FAERS data every quarter, so the newest months are not complete. They grow in later releases.

By reports in the 12 months to June 2026, this term was number 1,097 of 1,436 reaction terms with a page. Of the 1,332,454 drug reports that FDA received in the 12 months to June 2026, 404 (under 0.1%) record this term. Reports for female patients were 32.7% of the reports that record this term and 52.7% of all drug reports.

The number of people who use the product is not in the data. A count is not a rate.

MedDRA

The Medical Dictionary for Regulatory Activities. The person who codes a report selects the preferred term that agrees best with the description of the reporter. FDA does not publish the description.

Data version

openFDA FAERS release of 29 Oct 2026. Reports received through 30 Jun 2026.

Drugs in these reports

The table has the 65 drug pages with 25 or more reports that record this term. The rows are in order of name. A drug page with fewer reports for this term is not in the table. The counts are the counts that the site keeps for each reaction term, and a count can be lower than the count of FDA.

FDA says:

Additionally, it is important to remember that adverse event reports represent a small percentage of total usage numbers of a product. Common products may have a higher number of adverse events due to the higher total number of people using the product.

Source: openFDA, Drug Adverse Event Overview. The site read the page on .

Importantly, the AEMS data by themselves are not an indicator of the safety profile of the drug or biologic.

Source: FDA, FDA Adverse Event Monitoring System (AEMS) Public Dashboard. Content current as of . The site read the page on .

Drugs that the reports with the term Gastric cancer name as a suspect product, in order of name
DrugClassReports with this term
ActemraInterleukin-6 receptor antagonist40
ApixabanFactor Xa inhibitor25
AvonexInterferon beta45
CapecitabineNucleoside metabolic inhibitor40
CarboplatinPlatinum-based drug34
CisplatinPlatinum-based drug34
CosentyxInterleukin-17A antagonist26
CyclophosphamideAlkylating drug67
DexamethasoneCorticosteroid44
DexilantProton pump inhibitor78
DiovanAngiotensin 2 receptor blocker37
DoxorubicinAnthracycline topoisomerase inhibitor35
EliquisFactor Xa inhibitor85
EnbrelTumor necrosis factor blocker151
EsomeprazoleProton pump inhibitor40
EtoposideTopoisomerase inhibitor30
FluorouracilNucleoside metabolic inhibitor28
ForteoParathyroid hormone analog31
GleevecKinase inhibitor51
Glivec47
Humira150
IbranceKinase inhibitor27
LansoprazoleProton pump inhibitor52
LantusInsulin analog26
Leucovorin calciumFolate analog35
LipitorHMG-CoA reductase inhibitor25
MethotrexateFolate analog metabolic inhibitor61
Mycophenolate mofetilAntimetabolite immunosuppressant37
NexiumProton pump inhibitor505
Nexium 24HRProton pump inhibitor162
OmeprazoleProton pump inhibitor183
OpdivoProgrammed death Receptor-1 blocking antibody26
OrenciaSelective T cell costimulation modulator27
OxaliplatinPlatinum-based drug55
PaclitaxelMicrotubule inhibitor25
PantoprazoleProton pump inhibitor150
Pantoprazole sodiumProton pump inhibitor211
PradaxaDirect thrombin inhibitor41
Prazaxa25
PrednisoloneCorticosteroid34
PrednisoneCorticosteroid52
PrevacidProton pump inhibitor210
Prevacid 24 HRProton pump inhibitor132
PrilosecProton pump inhibitor287
Prilosec OTCProton pump inhibitor187
ProliaRANK ligand inhibitor33
RanitidineHistamine-2 receptor antagonist10,279
Ranitidine Hci321
Ranitidine hydrochlorideHistamine-2 receptor antagonist2,878
RemicadeTumor necrosis factor blocker110
RevlimidThalidomide analog84
Rheumatrex53
RinvoqJanus kinase inhibitor50
RituximabCD20-directed cytolytic antibody81
SimponiTumor necrosis factor blocker52
SkyriziInterleukin-23 antagonist42
StelaraInterleukin-12 antagonist45
SutentKinase inhibitor25
TacrolimusCalcineurin inhibitor immunosuppressant40
ValsartanAngiotensin 2 receptor blocker67
Vincristine29
XareltoFactor Xa inhibitor27
XeljanzJanus kinase inhibitor56
XelodaNucleoside metabolic inhibitor44
Zantac14,542

The page of each drug has the count of each reaction term in its reaction lookup.

Drug classes in these reports

The table has the 45 pharmacologic classes with 25 or more reports that record this term. The rows are in order of name.

FDA says:

Additionally, it is important to remember that adverse event reports represent a small percentage of total usage numbers of a product. Common products may have a higher number of adverse events due to the higher total number of people using the product.

Source: openFDA, Drug Adverse Event Overview. The site read the page on .

Importantly, the AEMS data by themselves are not an indicator of the safety profile of the drug or biologic.

Source: FDA, FDA Adverse Event Monitoring System (AEMS) Public Dashboard. Content current as of . The site read the page on .

Pharmacologic classes of the drugs that the reports with the term Gastric cancer name, in order of name
ClassReports with this term
Alkylating drug117
Angiotensin 2 receptor blocker155
Anthracycline topoisomerase inhibitor58
Antimetabolite immunosuppressant51
Atypical antipsychotic66
Benzodiazepine39
beta-Adrenergic blocker45
Bisphosphonate29
Calcineurin inhibitor immunosuppressant85
CD20-directed cytolytic antibody96
Corticosteroid146
Dipeptidyl peptidase 4 inhibitor29
Direct thrombin inhibitor43
Endothelin receptor antagonist26
Factor Xa inhibitor161
Folate analog35
Folate analog metabolic inhibitor83
GLP-1 receptor agonist62
Gonadotropin releasing hormone receptor agonist29
Histamine-2 receptor antagonist13,158
HMG-CoA reductase inhibitor40
Insulin analog48
Integrin receptor antagonist25
Interferon beta60
Interleukin-12 antagonist45
Interleukin-17A antagonist28
Interleukin-23 antagonist53
Interleukin-6 receptor antagonist45
Janus kinase inhibitor114
Kinase inhibitor237
Microtubule inhibitor54
Nonsteroidal anti-inflammatory drug90
Nucleoside metabolic inhibitor171
Opioid agonist122
P2Y12 platelet inhibitor37
Parathyroid hormone analog33
Platinum-based drug123
Programmed death Receptor-1 blocking antibody54
Proton pump inhibitor2,260
RANK ligand inhibitor35
Selective T cell costimulation modulator48
Serotonin reuptake inhibitor34
Thalidomide analog103
Topoisomerase inhibitor30
Tumor necrosis factor blocker386

A class with many reports in all has many reports for almost every term.

Reports by month

Reports that record Gastric cancer, by month, five years to June 2026
02,5005,00020222023202420252026

FDA releases FAERS data every quarter, so the newest months are not complete. They grow in later releases.

Patients in these reports

Age of the patient in the reports that record Gastric cancer
AgeReportsShareShare as a bar
Under 22under 0.1%
2 to 111under 0.1%
12 to 17160.1%
18 to 441,8357.3%
45 to 645,34821.2%
65 to 742,75510.9%
75 and over2,0037.9%
Age not given13,31152.7%
Sex of the patient in the reports that record Gastric cancer
SexReportsShareShare as a bar
Female8,25632.7%
Male10,54441.7%
Unknown or not given6,47125.6%

Age and sex are as the report gives them. 83.6% of these reports give the United States as the country.

Terms near this one

Official pages

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Reported Reactions. Gastric cancer: adverse event reports that record this term. https://reportedreactions.com/reaction/gastric-cancer/ Source: U.S. Food and Drug Administration, openFDA Drug Adverse Event (FAERS) files, release of . Reports received through .

Where the data come from

The counts come from the openFDA Drug Adverse Event (FAERS) bulk files, release of 29 Oct 2026. The files have the reports that FDA received through 30 Jun 2026. A drug name is the name on the report. The site matches it to a brand name or a generic name of the National Drug Code Directory of 2 Nov 2026. A class is the pharmacologic class (EPC) of the FDA label.

The count has the reports with each spelling of one MedDRA preferred term. The site does not publish a report narrative, a lot number, a detail of a patient or the identity of a reporter. The record of FDA is the authority. See how the site counts reports, the data sources and the corrections page.

Questions

What does Gastric cancer mean in an adverse event report?

It is a MedDRA preferred term. FDA codes the description of a reporter with the MedDRA dictionary. The openFDA files do not have the description itself, and this site does not show it.

Does a drug in the table mean that the drug was responsible for this reaction?

No. FDA says:

No individual drug is connected to any individual reaction.

Source: openFDA, Drug Adverse Event Overview. The site read the page on .

When a report lists multiple drugs and multiple reactions, there is no way to conclude from the data therein that a given drug is responsible for a given reaction.

Source: openFDA, Drug Adverse Event Overview. The site read the page on .

What does this page tell a person who has this symptom?

This page gives counts of reports. It cannot assess a person. A pharmacist or a clinician can assess a person.

If this is a medical emergency, please call 911.

Source: FDA, MedWatch Online Voluntary Reporting Form. The site read the page on .