NCT04562597

Brief 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.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
50

participants targeted

Target at P50-P75 for phase_1 surgery

Timeline
Completed

Started Jan 2021

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

September 10, 2020

Completed
14 days until next milestone

First Posted

Study publicly available on registry

September 24, 2020

Completed
4 months until next milestone

Study Start

First participant enrolled

January 20, 2021

Completed
1.3 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

May 20, 2022

Completed
1 day until next milestone

Study Completion

Last participant's last visit for all outcomes

May 21, 2022

Completed
9 months until next milestone

Results Posted

Study results publicly available

February 14, 2023

Completed
Last Updated

February 14, 2023

Status Verified

January 1, 2023

Enrollment Period

1.3 years

First QC Date

September 10, 2020

Results QC Date

November 18, 2022

Last Update Submit

January 19, 2023

Conditions

Outcome Measures

Primary Outcomes (1)

  • Opioid Consumption 12 Hours Post Operative

    Post operative opioid consumption in the 12 hours that occur post-operatively.

    12 hours

Secondary Outcomes (1)

  • Opioid Consumption Every 6 Hours Post Operative

    6-48 hours

Study Arms (6)

Dose Response Curve Placebo

PLACEBO COMPARATOR

5 participants will be randomized to the placebo group to estimate the dose response curve and to identify the optimal dose.

Drug: Dose Response Curve Placebo

Dose Response Curve N-acetylcysteine 50 mg/kg

ACTIVE COMPARATOR

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.

Drug: Dose Response Curve N-acetylcysteine 50 mg/kg

Dose Response Curve N-acetylcysteine 100 mg/kg

ACTIVE COMPARATOR

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.

Drug: Dose Response Curve N-acetylcysteine 100 mg/kg

Dose Response Curve N-acetylcysteine 150 mg/kg

ACTIVE COMPARATOR

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.

Drug: Dose Response Curve N-acetylcysteine 150 mg/kg

Opioid Reduction with Optimal N-acetylcysteine Dose

ACTIVE COMPARATOR

Once the optimal N-acetylcysteine dose is identified, 15 additional participants will be randomized to the optimal dose to estimate the difference in opioid consumption between patients on placebo vs. the optimal dose. Primary and secondary outcomes will only be evaluated for the placebo group and optimal NAC group.

Drug: Opioid Reduction with Optimal N-acetylcysteine Dose

Placebo

PLACEBO COMPARATOR

15 Participants will be randomized to placebo to estimate the difference in opioid consumption between patients on placebo vs. the optimal dose. Primary and secondary outcomes will only be evaluated for the placebo group and optimal NAC group.

Drug: Placebo

Interventions

5 participants will be randomized to the placebo group to estimate the dose response curve and to identify the optimal dose.

Dose Response Curve Placebo

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 50 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 100 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.

Dose Response Curve N-acetylcysteine 150 mg/kg

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.

Opioid Reduction with Optimal N-acetylcysteine Dose

15 Participants will be randomized to placebo to estimate the difference in opioid consumption between patients administered optimal N-acetylcysteine dose or placebo.

Placebo

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

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

You may not qualify if:

  • 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

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Medical University of South Carolina

Charleston, South Carolina, 29425, United States

Location

Related Publications (23)

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    PMID: 19066381BACKGROUND
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  • Bavarsad Shahripour R, Harrigan MR, Alexandrov AV. N-acetylcysteine (NAC) in neurological disorders: mechanisms of action and therapeutic opportunities. Brain Behav. 2014 Mar;4(2):108-22. doi: 10.1002/brb3.208. Epub 2014 Jan 13.

    PMID: 24683506BACKGROUND
  • Tardiolo G, Bramanti P, Mazzon E. Overview on the Effects of N-Acetylcysteine in Neurodegenerative Diseases. Molecules. 2018 Dec 13;23(12):3305. doi: 10.3390/molecules23123305.

    PMID: 30551603BACKGROUND
  • 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.

    PMID: 31206613BACKGROUND
  • 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.

    PMID: 27309537BACKGROUND
  • 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.

    PMID: 23860343BACKGROUND
  • 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.

    PMID: 28940353BACKGROUND
  • Halboub E, Alkadasi B, Alakhali M, AlKhairat A, Mdabesh H, Alkahsah S, Abdulrab S. N-acetylcysteine versus chlorhexidine in treatment of aphthous ulcers: a preliminary clinical trial. J Dermatolog Treat. 2021 Sep;32(6):649-653. doi: 10.1080/09546634.2019.1688231. Epub 2019 Nov 21.

    PMID: 31679408BACKGROUND
  • 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.

    PMID: 27075430BACKGROUND
  • 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.

    PMID: 32009537BACKGROUND
  • Dludla PV, Nkambule BB, Dias SC, Johnson R. Cardioprotective potential of N-acetyl cysteine against hyperglycaemia-induced oxidative damage: a protocol for a systematic review. Syst Rev. 2017 May 12;6(1):96. doi: 10.1186/s13643-017-0493-8.

    PMID: 28499416BACKGROUND
  • Hoffer BJ, Pick CG, Hoffer ME, Becker RE, Chiang YH, Greig NH. Repositioning drugs for traumatic brain injury - N-acetyl cysteine and Phenserine. J Biomed Sci. 2017 Sep 9;24(1):71. doi: 10.1186/s12929-017-0377-1.

    PMID: 28886718BACKGROUND
  • Howard RJ, Blake DR, Pall H, Williams A, Green ID. Allopurinol/N-acetylcysteine for carbon monoxide poisoning. Lancet. 1987 Sep 12;2(8559):628-9. doi: 10.1016/s0140-6736(87)93018-2. No abstract available.

    PMID: 2887913BACKGROUND
  • Hamamsy ME, Bondok R, Shaheen S, Eladly GH. Safety and efficacy of adding intravenous N-acetylcysteine to parenteral L-alanyl-L-glutamine in hospitalized patients undergoing surgery of the colon: a randomized controlled trial. Ann Saudi Med. 2019 Jul-Aug;39(4):251-257. doi: 10.5144/0256-4947.2019.251. Epub 2019 Aug 5.

    PMID: 31381364BACKGROUND
  • 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.

    PMID: 28980294BACKGROUND
  • 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.

    PMID: 28643376BACKGROUND
  • Heidari N, Sajedi F, Mohammadi Y, Mirjalili M, Mehrpooya M. Ameliorative Effects Of N-Acetylcysteine As Adjunct Therapy On Symptoms Of Painful Diabetic Neuropathy. J Pain Res. 2019 Nov 19;12:3147-3159. doi: 10.2147/JPR.S228255. eCollection 2019.

    PMID: 31819599BACKGROUND
  • 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.

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    PMID: 12802041BACKGROUND
  • Wilson SH, Sirianni JM, Bridges KH, Wolf BJ, Valente IE, Scofield MD. The impact of intraoperative N-acetylcysteine on opioid consumption following spine surgery: a randomized pilot trial. Pain Manag. 2023 Oct;13(10):593-602. doi: 10.2217/pmt-2023-0061. Epub 2023 Oct 25.

Limitations and Caveats

* Opioid consumption was highly variable. This is likely due to the small sample size. * Data only collected up to 48 hours postoperative, and this limits our ability to comment more on the usefulness of NAC as an agent for patients with chronic pain.

Results Point of Contact

Title
Dr. Sylvia Wilson
Organization
Medical University of South Carolina

Study Officials

  • Sylvia Wilson, MD

    Medical University of South Carolina

    PRINCIPAL INVESTIGATOR

Publication Agreements

PI is Sponsor Employee
No
Restrictive Agreement
No

Study Design

Study Type
interventional
Phase
phase 1
Allocation
RANDOMIZED
Masking
TRIPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR
Purpose
TREATMENT
Intervention Model
SEQUENTIAL
Model Details: PHASE I. First 20 subjects (4 arms): We will initially randomize 5 patients to each dose group (placebo, 50, 100, and 150 mg/kg) to estimate the dose response curve and to identify the optimal dose. After enrollment of the first 20 patients, the study will undergo review by the study team and statistician. PHASE II: (2 arms) 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 patients on placebo vs. the optimal dose. Primary and secondary outcomes will be evaluated only for the placebo and optimal NAC groups.
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Professor

Study Record Dates

First Submitted

September 10, 2020

First Posted

September 24, 2020

Study Start

January 20, 2021

Primary Completion

May 20, 2022

Study Completion

May 21, 2022

Last Updated

February 14, 2023

Results First Posted

February 14, 2023

Record last verified: 2023-01

Data Sharing

IPD Sharing
Will not share

Locations