Avastin and Gastrointestinal obstruction - a phase IV clinical study of FDA data

Summary:

Gastrointestinal obstruction is reported as a side effect among people who take Avastin (bevacizumab), especially for people who are female, 60+ old, have been taking the drug for 1 - 6 months also take Decadron, and have Metastases to bone.

The phase IV clinical study analyzes which people have Gastrointestinal obstruction when taking Avastin. It is created by eHealthMe based on reports of 75,729 people who have side effects when taking Avastin from the FDA, and is updated regularly.

What is Avastin?

Avastin has active ingredients of bevacizumab. It is often used in high blood cholesterol. eHealthMe is studying from 76,365 Avastin users. Check the latest studies of Avastin.

What is Gastrointestinal obstruction?

Gastrointestinal obstruction is found to be associated with 269 drugs and 310 conditions by eHealthMe. Check the latest studies of Gastrointestinal obstruction.

eHealthMe: drug outcomes in the real world

eHealthMe runs one of the largest post-marketing drug safety studies in the world. We study millions of patients and 5,000 more each day. Our data-driven phase IV clinical trials have been referenced on 800+ peer-reviewed medical publications including The Lancet, Mayo Clinic Proceedings, and Nature. Tools to study our phase IV findings are available to the public, anonymous and free >>>.

On Aug, 30, 2026

75,729 people reported to have side effects when taking Avastin.
Among them, 23 people (0.03%) have Gastrointestinal obstruction.

Could Avastin cause Gastrointestinal obstruction?

Among these 23 people:

How long have people been on Avastin when they have Gastrointestinal obstruction? *

What is the gender of people who have Gastrointestinal obstruction when taking Avastin? *

female: 86.96 %
male: 13.04 %

What is the age of people who have Gastrointestinal obstruction when taking Avastin? *

What are other drugs people take besides Avastin? *

What are other side effects people have besides Gastrointestinal obstruction? *

Pain: 9 people, 39.13%
Tumor: 9 people, 39.13%
Abdominal Pain: 8 people, 34.78%
Dyspnea (difficult or laboured breathing): 8 people, 34.78%
Febrile Neutropenia (fever with reduced white blood cells): 8 people, 34.78%
Emotional Distress: 8 people, 34.78%
Joint Pain: 8 people, 34.78%
Localised Infection (infection at the single location): 7 people, 30.43%
Gums - Swollen: 7 people, 30.43%
Metastases To Abdominal Cavity (cancer spreads to abdominal cavity): 7 people, 30.43%

What are the existing conditions these people have? *

Metastases To Bone (cancer spreads to bone): 7 people, 30.43%
Colorectal Cancer Metastatic (cancer of colon and rectal spreads to other parts): 3 people, 13.04%
Ovarian Cancer (cancer of ovary): 2 people, 8.70%
Breast Cancer Metastatic: 2 people, 8.70%
Rectal Cancer (cancer of rectum): 1 person, 4.35%
Lung Cancer - Non-Small Cell (lung cancer): 1 person, 4.35%
Glioblastoma (most common and most aggressive malignant primary brain tumour in humans): 1 person, 4.35%
Endometrial Cancer: 1 person, 4.35%
Colon Cancer Metastatic (cancer of colon spreads to other part of body): 1 person, 4.35%
Colon Cancer: 1 person, 4.35%

* Approximation only. Some reports may have incomplete information.

Do you take Avastin and have Gastrointestinal obstruction?

- Check whether Gastrointestinal obstruction is associated with a drug or a condition
- Predict drug outcomes for up to one year with AI
- Get an AI agent to monitor your drugs continuously

Related studies:

Effectiveness of, long term effects of, and alternative drugs to Avastin:

Avastin (76,365 reports)

Browse all side effects of Avastin:

a b c d e f g h i j k l m n o p q r s t u v w x y z

Browse all the drugs that are associated with Gastrointestinal obstruction:

Gastrointestinal obstruction (269 drugs)

Browse all the conditions that are associated with Gastrointestinal obstruction:

Gastrointestinal obstruction (310 conditions)

How the study uses the data?

The study uses data from the FDA. It is based on bevacizumab (the active ingredients of Avastin) and Avastin (the brand name). Other drugs that have the same active ingredients (e.g. generic drugs) are not considered. Dosage of drugs is not considered in the study.

How to use the study?

DO NOT STOP MEDICATIONS without first consulting your doctor. If there are any serious or long term adverse effects discovered in the study, discuss the study with your doctor to ensure that proper medication management will be in place if applicable.

Who is eHealthMe?

With medical big data and proven AI/ML algorithms, eHealthMe provides a platform for everyone to run phase IV clinical trials. We study millions of patients and 5,000 more each day. Results of our real-world drug study have been referenced on 800+ peer-reviewed medical publications, including The Lancet, Mayo Clinic Proceedings, and Nature. Our analysis results are available to researchers, health care professionals, patients (testimonials), and software developers (open API).

WARNING, DISCLAIMER, USE FOR PUBLICATION

WARNING: Please DO NOT STOP MEDICATIONS without first consulting a physician since doing so could be hazardous to your health.

DISCLAIMER: All material available on eHealthMe.com is for informational purposes only, and is not a substitute for medical advice, diagnosis, or treatment provided by a qualified healthcare provider. All information is observation-only. Our phase IV clinical studies alone cannot establish cause-effect relationship. Different individuals may respond to medication in different ways. Every effort has been made to ensure that all information is accurate, up-to-date, and complete, but no guarantee is made to that effect. The use of the eHealthMe site and its content is at your own risk.

If you use this eHealthMe study on publication, please acknowledge it with a citation: study title, URL, accessed date.