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WithdrawnNCT02799589Remi-dexUpdated Apr 6, 2021

Remifentanil-dexmedetomidine Anesthesia With a Caudal for Elective Surgery. (Remi-dex)

A Phase 4 interventional study of Remifentanil and Dexmedetomidine in Anesthesia, sponsored by Mofya Diallo. Withdrawn. Open to participants aged 1 Year to 3 Years. Per ClinicalTrials.gov, last updated 2021-04-06.

Sponsored by Mofya Diallo · Phase 4, Interventional, and Treatment

Why this study was withdrawn
Difficulty in recruitment
Phase
Phase 4
Study type
Interventional
Enrollment
0
Allocation
Not applicable
Ages
1 Year to 3 Years
Sex
All
01

Study summary

This study intends to show the efficacy of remifentanil-dexmedetomidine infusions in combination with a caudal block for patients ages 1 year to 3 years old receiving elective surgery to investigate alternatives to the currently used volatile anesthetics.

Read the detailed description

In light of the concern for potential anesthetic neurotoxicity in infants and toddlers, it is prudent to start investigating alternative methods to decrease the amount of volatile anesthetic being utilized in this patient population. The US Food and Drug Administration has been asked to evaluate the data showing the neurotoxic effects of multiple anesthetic agents in animal models and humans. These studies have shown that N-methyl-D-aspartate (NMDA) receptor blockers such as ketamine,and gamma-Aminobutyric acid receptor (GABA) modulators like benzodiazepines, nitrous, propofol, barbiturates and isoflurane have been shown to cause brain cell apoptosis in animal models.

Regional anesthesia provides both intraoperative and postoperative analgesia may play a major role in effectively reducing the amount of general anesthetic used. Caudal anesthesia has been proven be both safe, effective and is applied widely in the pediatric population.

Dexmedetomidine is a selective alpha2-adrenergic agonist that acts in the brainstem by inhibiting norepinephrine release. Dexmedetomidine is commonly used off-label, including use for duration greater than 24 hours and any use in pediatrics. Dexmedetomidine has relatively few adverse events when compared to other sedative agents, with hypotension and bradycardia being most common.

Remifentanil has a rapid onset, rapid offset, small volume of distribution, rapid clearance, and a short elimination half-life, It may be a useful anesthetic for pediatric outpatient surgery.

While the current standard of care involves a volatile general anesthetic with a caudal block, anesthesiologists have alternative methods that can be utilized to allow an elective surgery to be performed. In summary, this study intends to show the efficacy and safety of a remifentanil-dexmedetomidine infusion and caudal block for patients ages 1 year-3 years old receiving elective circumcision, hydrocele repair, orchidopexy, mild hypospadias or inguinal hernia repair. This alternative anesthetic is already being studied in children under 12 months.

02

Conditions studied

  • Anesthesia
03

In context

Lead sponsor

This is the only study on the registry with Mofya Diallo as lead sponsor.

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

04

Who can participate

Ages eligible
1 Year to 3 Years
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  • Children aged 1 - 3 years undergoing urologic surgery (circumcision, hydrocele repair, orchidopexy, mild hypospadias) or inguinal hernia repair
  • American Society of Anesthesiologist Physical Status (ASA-PS) I or II
  • Eligible for caudal block
  • Parental/legal guardian consents for study '

Exclusion criteria

Exclusion Criteria:

  • Allergy to remifentanil, dexmedetomidine or ropivacaine
  • Family history of malignant hyperthermia
  • Parental/legal guardian refusal
  • ASA-PS ≥ 3
  • Symptoms of upper respiratory infection (URI) within the 2 weeks prior to surgery
  • Known spinal deformity, presence of sacral dimple, or signs of infection at the site of the caudal block (e.g. diaper rash, skin redness or tenderness).
05

Study design

Phase
Phase 4
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
0 participants (actual)

Study arms

  • Experimental
    Remifentanil-dexmedetomidine and caudal

    Anesthesia will be induced with inhaled sevoflurane which will be discontinued once IV access is obtained and the airway is secured with an endotracheal tube. Patients will receive remifentanil loading dose of 1mcg/kg over 1 min followed by an infusion (0.05-0.5 mcg/kg/min) and dexmedetomidine load at 1mcg/kg over 10 mins followed by and infusion (0.2-0.7 mcg/kg/hr) A caudal block with 0.2% ropivacaine will be performed in all patients for intraoperative and postoperative pain control.

    Drug: Remifentanil · Drug: Dexmedetomidine · Drug: Ropivacaine

Interventions

  • DrugRemifentanil

    1mcg/kg over 1 min followed by an infusion (0.05-0.5 mcg/kg/min)

    Also known as: Ultiva

  • DrugDexmedetomidine

    1mcg/kg over 10 mins followed by and infusion (0.2-0.7 mcg/kg/hr)

    Also known as: Precedex

  • DrugRopivacaine

    Caudal anesthesia block with Ropivicaine 0.2% 1ml/kg injected into the caudal space

    Also known as: Naropin

06

What researchers measure

Primary outcomes

  1. Number of patients requiring intervention for light anesthesia

    Identified by patient movement, change in mean arterial pressure \>80 at surgical incision, need to change anesthetic plan

    Time frame: 90-120 mins (length of surgery)

Secondary outcomes

  1. Time to recovery after anesthesia

    Time from end of surgery to: extubation; time to discharge from post-anesthesia care unit (PACU)

    Time frame: 10 mins; 1- 4 hours

  2. Number of patients requiring rescue analgesia in PACU

    Use of Fentanyl, Morphine, Ketorolac in recovery unit,

    Time frame: 30 mins to 4 hours after surgery

  3. Number of patients with pain after surgery

    Pain is assessed after recovery on Face, Legs, Activity, Cry, Consolability (FLACC) scale 0 to 10. Average score will be noted.

    Time frame: 1 to 4 hours

  4. Number of patients with respiratory event

    Bronchospasm, laryngospasm and pulse oximetry desaturation to less than 90%

    Time frame: Anesthesia start to discharge from PACU usually 2- 6 hours

07

Study locations

No study locations are listed for this record.

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 Apr 6, 2021, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT02799589
Lead sponsor
Mofya Diallo
Responsible party
Mofya Diallo (Principal Investigator, Children's National Research Institute) — Sponsor-investigator
First posted
Jun 15, 2016
Start date
Jul 2016 (estimated)
Primary completion
Aug 2017 (estimated)
Completion
Nov 2017 (estimated)
Last update
Apr 6, 2021

Study contacts

Mofya Diallo, MD
principal investigator · Children's National Health System

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is withdrawn, as verified in Apr 2021. You cannot join it, but the record below documents what was studied.

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