Combination of Vitamin C and N-Acetylcysteine to Improve Functional Outcome After Rotator Cuff Repair

Summary

The goal of this clinical trial is to learn if vitamin C and N-acetylcysteine work to improve shoulder functional score after rotator cuff repair. It will also learn about the safety of vitamin C and N-acetylcysteine. The main questions it aims to answer are: Do vitamin C and N-acetylcysteine improve the shoulder functional score of participants? Do vitamin C and N-acetylcysteine improve healing of rotator tendon? Researchers will compare vitamin C and N-acetylcysteine to a placebo (a look-alike substance that contains no drug) to see if vitamin C and N-acetylcysteine works to improve shoulder functional score after rotator cuff repair. Participants will: Take vitamin C and N-acetylcysteine or a placebo every day for 45 days. Visit the OPD three times at 2 week, 6 month and 12 month after surgery for checkups and tests.

Timeline

Start

2024-05-01

Primary completion

2025-09-01

Completion

2026-05-01

Publications

• Background Uehara H, Itoigawa Y, Morikawa D, Koga A, Tsurukami H, Maruyama Y, Ishijima M. The Effect of Vitamin C and N-Acetylcysteine on Tendon-to-Bone Healing in a Rodent Model of Rotator Cuff Repair. Am J Sports Med. 2023 May;51(6):1596-1607. doi: 10.1177/03635465231160772. Epub 2023 Apr 5.
• Background Gilat R, Atoun E, Cohen O, Tsvieli O, Rath E, Lakstein D, Levy O. Recurrent rotator cuff tear: is ultrasound imaging reliable? J Shoulder Elbow Surg. 2018 Jul;27(7):1263-1267. doi: 10.1016/j.jse.2017.12.017. Epub 2018 Feb 3.
• Results Martel M, Laumonerie P, Girard M, Dauzere F, Mansat P, Bonnevialle N. Does vitamin C supplementation improve rotator cuff healing? A preliminary study. Eur J Orthop Surg Traumatol. 2022 Jan;32(1):63-70. doi: 10.1007/s00590-021-02926-0. Epub 2021 Mar 16.

Drugs

Indications