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CompletedNCT02598856OPI-15-002Updated Feb 3, 2017

Bioavailability of Nasal Naloxone and Injected Naloxone Compared

A Phase 1 interventional study of Intranasal (IN) naloxone 1x and Intranasal (IN) naloxone 2 in Drug Overdose, sponsored by Norwegian University of Science and Technology. Completed at 1 site in Norway. Open to participants aged 18 Years to 40 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2017-02-03.

Sponsored by Norwegian University of Science and Technology · Phase 1, Interventional, and Basic science

Phase
Phase 1
Study type
Interventional
Enrollment
22
Allocation
Randomized
Ages
18 Years to 40 Years
Sex
All
01

Study summary

Opioid overdoses have in the last decade counted for about 230 untimely deaths annually in Norway. The government is currently implementing a strategy for combating this epidemic. Among the actions promoted in this strategy is the distribution of naloxone for intranasal administration. Such administration of naloxone is currently being implemented and tried out around the world, but very little has been done to pharmacologically study this new route of administration of this well known drug, and only 3 open label randomized controlled trials (RCTs) have been conducted. A recent guideline from the WHO on community management of opioid overdoses is a comprehensive review of many of the aspects the investigators cover in our research.

Regarding both dosage, routes of administration of naloxone and care of these patients in the pre hospital setting. The WHO calls for nasal formulations with a higher concentration, as well as focuses on the current wide spread off label use of nasal naloxone as a problem and identifies several research questions of critical importance and very low evidence.The current study, together with our research group's previous and future studies, aims to provide data for the development of a medicinal product with marketing authorisation for use in pre-hospital overdoses. This to contribute to public health measures for opioid users and those around them.

02

Conditions studied

  • Drug Overdose

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Keywords

  • Emergency Treatment
  • Morphine Derivates
  • Heroin
  • Antidotes
  • Administration, Intravenous
  • Pharmacology
  • Naloxone
  • Healthy volunteers
  • Administration, intramuscular
  • Administration, intranasal
03

In context

Drug Overdose

139 studies on the registry are indexed under Drug Overdose; 24 are open to participants now.

This study's enrollment of 22 is below the median of 100 across 98 interventional studies indexed under Drug Overdose.

Browse Drug Overdose studies →

Lead sponsor

Norwegian University of Science and Technology is the lead sponsor of 487 studies on the registry; 52 are open to participants now.

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

04

Who can participate

Ages eligible
18 Years to 40 Years
Sexes eligible
All
Accepts healthy volunteers
Yes

Inclusion criteria

In order to participate in this study the subjects must meet all of the following inclusion criteria:

  • Provision of a signed written informed consent
  • ECG without any pathological abnormalities
  • Have a BMI range of 18.5- 26.0 kg/m
  • Female subject with child bearing potential must use high efficacy contraception. For the purpose of this study acceptable contraception is defined as sterilization, oral contraceptives, patch, implants, vaginal ring, hormonal IUD or copper IUD through out the study until the last visit.
  • Laboratory values within reference values for the following haematology and biochemistry tests:

    • Haemoglobin
    • Creatinine
    • ASAT
    • ALAT
    • Gamma GT

Exclusion criteria

Exclusion Criteria:

In order to participate in the study subjects must not meet any of the following exclusion criteria:

  • using medication on a regular basis, including regular use of nasal spray of any form.
  • History of prior drug allergy
  • local nasal disease or nasal surgery for the last 2 months
  • Pregnant or breast feeding women. A serum HCG below 3 U/L must be demonstrated in females of child-bearing potential at Screening Visit.
  • Current drug or alcohol abuse, which in the opinion of the Investigator should preclude participation in the study.
  • Having received another new medical chemical entity (defined as a compound which has not been approved for marketing) or having participated in any other clinical study that included drug treatment within 3 months of the administration of investigational product in this study.
  • Hypersensitivity to naloxone or any of its excipients.
  • Investigator considers subject unlikely to comply with study procedures, restrictions and/or other requirements.
05

Study design

Phase
Phase 1
Primary purpose
Basic science
Allocation
Randomized
Intervention model
Crossover assignment
Masking
None (open label)
Enrollment
22 participants (actual)

Study arms

  • Experimental
    Intranasal naloxone 1x

    Each subject will receive one dose of IN naloxone 1.4 mg, IN naloxone 2 x 1.4 mg, IV naloxone 0.4 mg and IM naloxone 0.8 mg in a randomized order. The four doses will be given at four different visits with a washout period of at least 72 hours between. One follow-up visit will be conducted within one month after the last exposure.

    Drug: Intranasal (IN) naloxone 1x · Drug: Intranasal (IN) naloxone 2 · Drug: Intravenous (IV) naloxone · Drug: Intramuscular (IM) naloxone

  • Active comparator
    Intranasal naloxone 2x

    Each subject will receive one dose of IN naloxone 1.4 mg, IN naloxone 2 x 1.4 mg, IV naloxone 0.4 mg and IM naloxone 0.8 mg in a randomized order. The four doses will be given at four different visits with a washout period of at least 72 hours between. One follow-up visit will be conducted within one month after the last exposure.

    Drug: Intranasal (IN) naloxone 1x · Drug: Intranasal (IN) naloxone 2 · Drug: Intravenous (IV) naloxone · Drug: Intramuscular (IM) naloxone

  • Active comparator
    Intravenous naloxone

    Each subject will receive one dose of IN naloxone 1.4 mg, IN naloxone 2 x 1.4 mg, IV naloxone 0.4 mg and IM naloxone 0.8 mg in a randomized order. The four doses will be given at four different visits with a washout period of at least 72 hours between. One follow-up visit will be conducted within one month after the last exposure.

    Drug: Intranasal (IN) naloxone 1x · Drug: Intranasal (IN) naloxone 2 · Drug: Intravenous (IV) naloxone · Drug: Intramuscular (IM) naloxone

  • Active comparator
    Intramuscular naloxone

    Each subject will receive one dose of IN naloxone 1.4 mg, IN naloxone 2 x 1.4 mg, IV naloxone 0.4 mg and IM naloxone 0.8 mg in a randomized order. The four doses will be given at four different visits with a washout period of at least 72 hours between. One follow-up visit will be conducted within one month after the last exposure.

    Drug: Intranasal (IN) naloxone 1x · Drug: Intranasal (IN) naloxone 2 · Drug: Intravenous (IV) naloxone · Drug: Intramuscular (IM) naloxone

Interventions

  • DrugIntranasal (IN) naloxone 1x

    Administered as 100 μl 14.0 mg/ml (1.4 mg naloxone) by Aptar Unitdose device as one puff in one nostril

  • DrugIntranasal (IN) naloxone 2

    Administered as 2x 100 μl 14 mg/ml (2.8 mg naloxone) by Aptar Unitdose device as two puffs within the same nostril with 3 minutes interval

  • DrugIntravenous (IV) naloxone

    Administered as 1 ml Naloxon B Braun 0.4 mg/ml (0.4 mg naloxone), in an intravenous cannula in the opposite arm of which the blood samples are drawn from. IV bolus will be given rapidly (in less than 5 seconds)

  • DrugIntramuscular (IM) naloxone

    Naloxone administered as 2 ml Naloxon B Braun 0.4 mg/ml (0.8 mg naloxone) in a Braun Omnifix 2.5 ml syringe using a BD Microlance 3 21G (green) 0.8x40 mm needle in the deltoid muscle of the non-dominant arm

06

What researchers measure

Primary outcomes

  1. Difference in Peak plasma concentration (Cmax)

    Cmax will be compared for single dose IN, IM and IV naloxone

    Time frame: 4 days

  2. Difference in systemic exposure: Area under the plasma concentration versus time curve (AUC-0last)

    AUC 0-last will be compared for single dose IN, IM and IV naloxone

    Time frame: 4 days

  3. Difference in dose adjusted systemic exposure: Area under the plasma concentration versus time curve (AUC-0inf)

    AUC0-inf will be compared for single dose IN, IM and IV naloxone

    Time frame: 4 days

  4. Difference in time at which the Cmax is observed (Tmax)

    Tmax will be compared for single dose IN, IM and IV naloxone

    Time frame: 4 days

Secondary outcomes

  1. Dose proportionality

    assessed by comparing systemic exposure (AUC0-last) following one and two doses of 1.4 mg of IN naloxone in the same nostril.

    Time frame: 4 days

  2. Absolute bioavailability

    assessed by comparing dose adjusted systemic exposure (AUC0-last) of IN and IV naloxone

    Time frame: 4 days

  3. Relative bioavailability

    assessed by comparing dose adjusted systemic exposure (AUC0-last) of IN and IM naloxone

    Time frame: 4 days

07

Study locations

1 site
  • Department of Circulation and Medical Imaging
    Trondheim, Norway
08

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Feb 3, 2017, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT02598856
Lead sponsor
Norwegian University of Science and Technology
Collaborators
St. Olavs Hospital, A/S Den norske Eterfabrikk, Smerud Medical Research International AS
Responsible party
Sponsor
First posted
Nov 6, 2015
Start date
Mar 2016
Primary completion
Dec 2016
Completion
Dec 2016
Last update
Feb 3, 2017

Study contacts

Toril A Nagelhus Hernes, phd prof
study director · Norwegian University of Science and Technology

Oversight

Data monitoring committee
Yes
View the source record on ClinicalTrials.gov ↗

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This study is completed, as verified in Feb 2017. You cannot join it, but the record below documents what was studied.

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