Methotrexate and Aseptic necrosis bone - a phase IV clinical study of FDA data

Summary:

Aseptic necrosis bone is reported as a side effect among people who take Methotrexate (methotrexate sodium), especially for people who are female, 60+ old, have been taking the drug for 1 - 6 months also take Cyclophosphamide, and have Osteoporosis.

The phase IV clinical study analyzes which people have Aseptic necrosis bone when taking Methotrexate. It is created by eHealthMe based on reports of 599,650 people who have side effects when taking Methotrexate from the FDA, and is updated regularly.

What is Methotrexate?

Methotrexate has active ingredients of methotrexate sodium. It is often used in rheumatoid arthritis. eHealthMe is studying from 604,312 Methotrexate users. Check the latest studies of Methotrexate.

What is Aseptic necrosis bone?

Aseptic necrosis bone is found to be associated with 166 drugs and 266 conditions by eHealthMe. Check the latest studies of Aseptic necrosis bone.



On Jul, 14, 2026

599,650 people reported to have side effects when taking Methotrexate.
Among them, 62 people (0.01%) have Aseptic necrosis bone.

Could Methotrexate cause Aseptic necrosis bone?

Among these 62 people:

How long have people been on Methotrexate when they have Aseptic necrosis bone? *

  • < 1 month: 20 %
  • 1 - 6 months: 40 %
  • 6 - 12 months: 0.0 %
  • 1 - 2 years: 20 %
  • 2 - 5 years: 20 %
  • 5 - 10 years: 0.0 %
  • 10+ years: 0.0 %

What is the gender of people who have Aseptic necrosis bone when taking Methotrexate? *

  • female: 56.9 %
  • male: 43.1 %

What is the age of people who have Aseptic necrosis bone when taking Methotrexate? *

  • 0-1: 0.0 %
  • 2-9: 3.33 %
  • 10-19: 5.0 %
  • 20-29: 11.67 %
  • 30-39: 3.33 %
  • 40-49: 21.67 %
  • 50-59: 20.0 %
  • 60+: 35.0 %

What are other drugs people take besides Methotrexate? *

  1. Prednisone: 18 people, 29.03%
  2. Cyclophosphamide: 18 people, 29.03%
  3. Folic Acid: 16 people, 25.81%
  4. Prednisolone: 15 people, 24.19%
  5. Enbrel: 14 people, 22.58%
  6. Fluorouracil: 9 people, 14.52%
  7. Vitamin E: 8 people, 12.90%
  8. Mercaptopurine: 7 people, 11.29%
  9. Cytarabine: 7 people, 11.29%
  10. Aredia: 7 people, 11.29%

What are other side effects people have besides Aseptic necrosis bone? *

  1. Joint Pain: 19 people, 30.65%
  2. Bone Disorder: 11 people, 17.74%
  3. Aseptic Necrosis (the death of bone tissue due to a lack of blood supply): 8 people, 12.90%
  4. Fever: 6 people, 9.68%
  5. Blood Creatinine Increased: 6 people, 9.68%
  6. Pain In Jaw: 6 people, 9.68%
  7. Osteomyelitis (infection of bone): 6 people, 9.68%
  8. Bone Pain: 5 people, 8.06%
  9. Difficulty In Walking: 5 people, 8.06%
  10. Tooth Abscess (pus formation in tooth): 5 people, 8.06%

What are the existing conditions these people have? *

  1. Osteoporosis (bones weak and more likely to break): 10 people, 16.13%
  2. Pain: 7 people, 11.29%
  3. Breast Cancer: 5 people, 8.06%
  4. Stress And Anxiety: 4 people, 6.45%
  5. Sinus Congestion (blockage of sinus): 4 people, 6.45%
  6. Metastases To Bone (cancer spreads to bone): 4 people, 6.45%
  7. Hypothyroidism (abnormally low activity of the thyroid gland, resulting in retardation of growth and mental development): 4 people, 6.45%
  8. Depression: 2 people, 3.23%
  9. Sarcoidosis (an inflammatory disease that affects multiple organs in the body, but mostly the lungs and lymph glands): 1 person, 1.61%
  10. Psoriasis (immune-mediated disease that affects the skin): 1 person, 1.61%

* Approximation only. Some reports may have incomplete information.

Do you take Methotrexate and have Aseptic necrosis bone?

- Check whether Aseptic necrosis bone 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 Methotrexate:

Aseptic necrosis bone treatments and more:

How severe was Aseptic necrosis bone and when was it recovered:

Expand to all the drugs that have ingredients of methotrexate sodium:

Sub-studies by gender and age:

Female: 0-1 2-9 10-19 20-29 30-39 40-49 50-59 60+

Male: 0-1 2-9 10-19 20-29 30-39 40-49 50-59 60+

Browse all side effects of Methotrexate:

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 Aseptic necrosis bone:

Browse all the conditions that are associated with Aseptic necrosis bone:

Related publications that referenced our studies


How the study uses the data?

The study uses data from the FDA. It is based on methotrexate sodium (the active ingredients of Methotrexate) and Methotrexate (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.



Recent studies on eHealthMe: