CClinicalTrials.gg
RecruitingNCT04574778Updated Jan 12, 2024

Randomized Trial of Intraoperative IV Versus Preoperative Oral Acetaminophen During Ambulatory Lumbar Discectomy

A Phase 3 interventional study of Acetaminophen in Pain, Postoperative and Spine Surgery, sponsored by Rothman Institute Orthopaedics. Recruiting at 1 site in United States. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2024-01-12.

Sponsored by Rothman Institute Orthopaedics · Phase 3, Interventional, and Other

From the registry’s dates

  • Primary completion was expected by Oct 2024, 1 year 11 months ago, but the record still lists the study as recruiting.
  • Started Mar 2021; still recruiting 5 years 6 months later.
Phase
Phase 3
Study type
Interventional
Enrollment
82
Allocation
Randomized
Ages
18 Years and older
Sex
All
01

Study summary

Effective non-opioid analgesics are of particular interest in ambulatory surgery, as providers may be able to reduce pain while avoiding perioperative opioids that can delay same day discharge. The value of maintaining an efficient flow of patients from the perioperative area to discharge is an important metric for same day surgery centers, and an improvement in efficiency with IV acetaminophen could potentially offset the increased cost of the medication while providing a more pleasant surgical experience for patients. The goal of this study is to compare the efficacy of intraoperative IV administration vs. preoperative oral administration of acetaminophen on postoperative opioid utilization, patient-reported pain scores, opioid-related adverse effects, and time to recovery and discharge from the post-anesthesia care unit (PACU) after ambulatory lumbar discectomy.

02

Conditions studied

  • Pain, Postoperative
  • Spine Surgery

Browse trials for

03

In context

Pain, Postoperative

5,093 studies on the registry are indexed under Pain, Postoperative; 1,140 are open to participants now.

This study's planned enrollment of 82 is close to the median of 75 across 4,344 interventional studies indexed under Pain, Postoperative.

Browse Pain, Postoperative studies →

Lead sponsor

Rothman Institute Orthopaedics is the lead sponsor of 118 studies on the registry; 17 are open to participants now.

Of its 6 completed or terminated interventional studies of FDA-regulated products, 0 (0%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  • Age greater than 18 years-old
  • Weight greater than 50 kg body weight
  • ASA physical status I-III
  • English-speaking

Exclusion criteria

Exclusion Criteria:

  • Weight less than 50 kg
  • Pregnancy or breast feeding
  • revision surgery
  • Contraindications to the administration of acetaminophen (e.g. allergy, liver failure, etc)
  • Chronic pain conditions unrelated to back pain
  • Opioid tolerance ( defined as taking greater than oxycodone 20 mg daily for a week during the past month).
05

Study design

Phase
Phase 3
Primary purpose
Other
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Double (Participant, Outcomes assessor)
Enrollment
82 participants (estimated)

Study arms

  • Active comparator
    Group 1: IV acetaminophen and PO placebo

    Group 1 will receive 1000 mg of IV acetaminophen approximately 30 minutes prior to skin closure and will receive oral placebo in the holding area prior to surgery

    Drug: Acetaminophen

  • Active comparator
    Group 2: PO acetaminophen

    Group 2 will receive 1000 mg of PO acetaminophen in the holding area and will not receive an IV placebo.

    Drug: Acetaminophen

Interventions

  • DrugAcetaminophen

    1000 mg of oral acetaminophen preoperatively administered

06

What researchers measure

Primary outcomes

  1. Postoperative opioid usage

    Postoperative opioid usage over the first 24 hours will be reported in IV morphine equivalents

    Time frame: 1 day

Secondary outcomes

  1. Quality of recovery

    assessed using the Quality of Recovery 15 scale, with a range of 0-150 (0 is the worst score and 150 is the best possible recovery)

    Time frame: 1 day

  2. Number of patients who report nausea or vomiting

    this will be a count of the number of patients who report nausea or vomiting in recovery room

    Time frame: 1 day

  3. Mean pain score

    (0-10 numerical rating scale where 0=no pain and 10=worst pain imaginable) - this will be the mean pain rating upon entering pacu and at least 1 other time point in each study group

    Time frame: 1 day

07

Study locations

1 of 1 sites recruiting
  • Rothman Orthopaedic Institute
    Philadelphia, Pennsylvania 19107, United States
    Recruiting
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jan 12, 2024, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT04574778
Lead sponsor
Rothman Institute Orthopaedics
Responsible party
Sponsor
First posted
Oct 5, 2020
Start date
Mar 18, 2021
Primary completion
Oct 31, 2024 (estimated)
Completion
Oct 31, 2024 (estimated)
Last update
Jan 12, 2024

Oversight

FDA-regulated drug
Yes
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Interested in this study?

Eligibility is decided by the study team. Share this record with your doctor or contact the team directly.

No contact was published for this record. The registry link below has the sponsor’s details.

Follow this study

Get an email when the registry record changes — status, dates, results — or when someone posts here.

Sign in to follow

Discussion

Questions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.

Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.

Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.

Start the discussion