A Pilot Trial to Determine the Effective N-acetylcysteine Dose for Opioid Reduction for Spine Surgery.

Surgery Clinical Trial

Official title:

A Pilot Trial to Determine the Effective Dose of N-acetylcysteine for Opioid Reduction in Patients Undergoing Spine Surgery.

Clinical Trial Details — Status: Completed

Administrative data

• NCT number: NCT04562597
• Other study ID #: Pro00099062
• Status: Completed
• Phase: Phase 1/Phase 2
• Start date: January 20, 2021
• Est. completion date: May 21, 2022

Study information

• Verified date: January 2023
• Source: Medical University of South Carolina
• Contact: n/a
• Is FDA regulated: No
• Study type: Interventional

Clinical Trial Summary

Determine the optimal dose of IV N-acetylcysteine (NAC) to produce opioid reduction following spine surgery and estimate the difference in opioid consumption between placebo and the selected optimal dose.

Description:

First 20 subjects: 5 participants will be randomized to each dose group (placebo, 50, 100, and 150 mg/kg) to estimate the dose response curve and to identify the optimal dose.

If the dose response curve is adequate and the optimal dose identified, 15 additional participants will be randomized to placebo and 15 to the optimal dose to estimate the difference in opioid consumption between participants on placebo vs. the optimal dose. (Total of 50 subjects with 20 from dose response curve and 30 to estimate the difference in opioid consumption.)

If the dose response curve is not adequate after the initial 20 subjects 5 per each dose group, then an additional 5 participants will be randomized and to each dose group (placebo, 50, 100, and 150 mg/kg) to estimate the dose response curve and to identify the optimal dose. Once the optimal dose is identified with these initial 40 patients, 10 additional participants will be randomized to placebo and 10 to the optimal dose to estimate the difference in opioid consumption between participants on placebo vs. the optimal dose. (60 patients total with 40 to create the dose response curve and 20 more to estimate the difference in opioid consumption.)

A sample size of 20 subjects per group (placebo and optimal dose) allows us to estimate a 95% confidence interval for the mean difference in opioid consumption with a width of + 0.64 standard deviations from the mean. 70 subjects may be enrolled to account for withdrawal but the study will be completed once 50 or 60 subjects (based on the number of subjects required to create the dose response curve) have completed the protocol.

Recruitment information / eligibility

• Status: Completed
• Enrollment: 50
• Est. completion date: May 21, 2022
• Est. primary completion date: May 20, 2022
• Accepts healthy volunteers: Accepts Healthy Volunteers
• Gender: All
• Age group: 18 Years and older

Eligibility

Inclusion Criteria:

• Undergoing elective spine surgery involving 4 levels or less of the thoracic, lumbar, or sacral spine.

• 18 years of age and older.

Exclusion Criteria:

• Less than 40kg in weight.

• Unable to provide written, informed consent.

• History of an adverse or anaphylactoid reaction to acetylcysteine.

• Active asthma, wheezing, or using inhaled bronchodilators.

• Pregnant Women

• Known blood clotting deficiency

Related Conditions & MeSH terms

• Surgery

Intervention

Drug:
• Dose Response Curve Placebo
5 participants will be randomized to the placebo group to estimate the dose response curve and to identify the optimal dose.
• Dose Response Curve N-acetylcysteine 50 mg/kg
5 participants will be randomized to the N-acetylcysteine 50 mg/kg group to estimate the dose response curve and to identify the optimal dose.
• Dose Response Curve N-acetylcysteine 100 mg/kg
5 participants will be randomized to the N-acetylcysteine 100 mg/kg group to estimate the dose response curve and to identify the optimal dose.
• Dose Response Curve N-acetylcysteine 150 mg/kg
5 participants will be randomized to the N-acetylcysteine 150 mg/kg group to estimate the dose response curve and to identify the optimal dose.
• Opioid Reduction with Optimal N-acetylcysteine Dose
Once the optimal N-acetylcysteinedose is identified, 15 participants will be randomized to the optimal dose (50,100, or 150 mg/kg) to estimate the difference in opioid consumption between patients administered optimal N-acetylcysteine dose or placebo.
• Placebo
15 Participants will be randomized to placebo to estimate the difference in opioid consumption between patients administered optimal N-acetylcysteine dose or placebo.

Locations

Country	Name	City	State
United States	Medical University of South Carolina	Charleston	South Carolina

Sponsors (1)

Lead Sponsor	Collaborator
Medical University of South Carolina

Country where clinical trial is conducted

United States, 

References & Publications (22)

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Coles LD, Tuite PJ, Oz G, Mishra UR, Kartha RV, Sullivan KM, Cloyd JC, Terpstra M. Repeated-Dose Oral N-Acetylcysteine in Parkinson's Disease: Pharmacokinetics and Effect on Brain Glutathione and Oxidative Stress. J Clin Pharmacol. 2018 Feb;58(2):158-167. doi: 10.1002/jcph.1008. Epub 2017 Sep 22. — View Citation

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Holmay MJ, Terpstra M, Coles LD, Mishra U, Ahlskog M, Oz G, Cloyd JC, Tuite PJ. N-Acetylcysteine boosts brain and blood glutathione in Gaucher and Parkinson diseases. Clin Neuropharmacol. 2013 Jul-Aug;36(4):103-6. doi: 10.1097/WNF.0b013e31829ae713. — View Citation

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Kerr F, Dawson A, Whyte IM, Buckley N, Murray L, Graudins A, Chan B, Trudinger B. The Australasian Clinical Toxicology Investigators Collaboration randomized trial of different loading infusion rates of N-acetylcysteine. Ann Emerg Med. 2005 Apr;45(4):402-8. doi: 10.1016/j.annemergmed.2004.08.040. — View Citation

Li J, Xu L, Deng X, Jiang C, Pan C, Chen L, Han Y, Dai W, Hu L, Zhang G, Cheng Z, Liu W. N-acetyl-cysteine attenuates neuropathic pain by suppressing matrix metalloproteinases. Pain. 2016 Aug;157(8):1711-1723. doi: 10.1097/j.pain.0000000000000575. — View Citation

Monti DA, Zabrecky G, Kremens D, Liang TW, Wintering NA, Bazzan AJ, Zhong L, Bowens BK, Chervoneva I, Intenzo C, Newberg AB. N-Acetyl Cysteine Is Associated With Dopaminergic Improvement in Parkinson's Disease. Clin Pharmacol Ther. 2019 Oct;106(4):884-890. doi: 10.1002/cpt.1548. Epub 2019 Jul 17. — View Citation

Monti DA, Zabrecky G, Kremens D, Liang TW, Wintering NA, Cai J, Wei X, Bazzan AJ, Zhong L, Bowen B, Intenzo CM, Iacovitti L, Newberg AB. N-Acetyl Cysteine May Support Dopamine Neurons in Parkinson's Disease: Preliminary Clinical and Cell Line Data. PLoS One. 2016 Jun 16;11(6):e0157602. doi: 10.1371/journal.pone.0157602. eCollection 2016. — View Citation

Notartomaso S, Scarselli P, Mascio G, Liberatore F, Mazzon E, Mammana S, Gugliandolo A, Cruccu G, Bruno V, Nicoletti F, Battaglia G. N-Acetylcysteine causes analgesia in a mouse model of painful diabetic neuropathy. Mol Pain. 2020 Jan-Dec;16:1744806920904292. doi: 10.1177/1744806920904292. — View Citation

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Sins JWR, Fijnvandraat K, Rijneveld AW, Boom MB, Kerkhoffs JH, van Meurs AH, de Groot MR, Heijboer H, Dresse MF, Le PQ, Hermans P, Vanderfaeillie A, Van Den Neste EW, Benghiat FS, Kesse-Adu R, Delannoy A, Efira A, Azerad MA, de Borgie CA, Biemond BJ. Effect of N-acetylcysteine on pain in daily life in patients with sickle cell disease: a randomised clinical trial. Br J Haematol. 2018 Aug;182(3):444-448. doi: 10.1111/bjh.14809. Epub 2017 Jun 23. No abstract available. — View Citation

Soleimani A, Habibi MR, Hasanzadeh Kiabi F, Alipour A, Habibi V, Azizi S, Emami Zeydi A, Sohrabi FB. The effect of intravenous N-acetylcysteine on prevention of atrial fibrillation after coronary artery bypass graft surgery: a double-blind, randomised, placebo-controlled trial. Kardiol Pol. 2018;76(1):99-106. doi: 10.5603/KP.a2017.0183. Epub 2017 Oct 5. — View Citation

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* Note: There are 22 references in all — Click here to view all references

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	Opioid Consumption 12 Hours Post Operative	Post operative opioid consumption in the 12 hours that occur post-operatively.	12 hours
Secondary	Opioid Consumption Every 6 Hours Post Operative	Post operative opioid consumption ry 6 hours post operative. Data are reported as mean (95% CI) or mean difference (95% CI) estimated from a linear mixed model of opioid consumption over time including main effects for treatment group, postoperative time, and the interaction between treatment group and postoperative time and a random subject effect.	6-48 hours