IRCT20190306042945N7 IRCT 2025-08-28 Iran University of Medical Sciences Elastographic changes in para-spinal ozone therapy Investigating the changes in the elastography of the para-spinal lumbar muscles on chronic low back pain patients after ozone injection 2025-08-25 anticipated 29 Complete https://irct.ir/trial/85705 interventional Randomization: N/A, Blinding: Not blinded, Placebo: Not used, Assignment: Single, Purpose: Prevention. 2 Chronic low back pain. Intervention group: Pain-area elastography of the lower back to identify the injection point, then one session of para-spinal intramuscular ozone injection at a concentration of 20 µg/ml and a volume of 5 cc, given 2 cm from the spinous process of the involved level, followed by elastography follow-ups at one week, two weeks, and one month after the injection.. Yes - There is a plan to make this available What will be shared: All data is potentially shareable after de-identifying individual ID data. When: The access period starts 6 months after the results are published To whom: It will be available only to researchers working in academic and scientific institutions. Conditions: If needed, for use in future researches, please send a written request via email. Where to obtain: Main researcher: Dr. Bijan Forough Email: forogh.b@iums.ac.ir How to obtain: After sending the request to the e-mail, the information will be accessible within a period of about one week. Comments: