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Pain, Post-operativePhase 2NCT02284243

Placebo-Controlled Evaluation of Intranasal Dexmedetomidine for Postoperative Analgesia Following Bunionectomy Surgery

A Phase 2 study testing Intranasal Dexmedetomidine in people with Pain, Post-operative, run by Baudax Bio at 3 sites in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The primary objective of this study is to evaluate the analgesic efficacy, on Post-Operative Day (POD) 1, of DEX-IN compared with placebo, using the summed pain intensity difference over the first 48 hours (SPID48) in subjects with acute moderate to severe pain following unilateral bunionectomy. Read more about this study

Who is it for?
Ages 18 to 70 years
Conditions the study is for
Pain, Post-operative
What is being tested?
Intranasal Dexmedetomidine
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
168 participants
Where
3 sitesUnited States
Study dates
Oct 2014to Jun 2015
Phase
Phase 2
Are there results?
Yes, posted in the registrySummary in the doctors' view

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 70 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Voluntarily provide written informed consent.
  • Male or female between 18 and 70 years of age, inclusive.
  • Be scheduled to undergo a primary unilateral first metatarsal bunionectomy repair
  • Be American Society of Anesthesiology (ASA) physical class 1 or 2.
  • Female subject are eligible only if all the following apply:
  • Not pregnant;
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  • Not lactating;
  • Not planning to become pregnant during the study;
  • Be surgically sterile; or at least two year post menopausal; or have a monogamous partner who is surgically sterile; or is practicing double-barrier contraception; or practicing abstinence; or using an insertable, injectable, transdermal, or combination oral contraceptive.
  • Male subjects must be surgically sterile or commit to the use of a reliable method of birth control
  • Have a body mass index ≤35 kg/m2
  • Be able to understand the study procedures, comply with all study procedures, and agree to participate in the study program.

Who cannot join

  • Have a known allergy to dexmedetomidine or any excipient in DEX-IN/placebo or to any peri- or postoperative medications used in this study.
  • Have a clinically significant abnormal clinical laboratory test value.
  • Have history of or positive test results for HIV, or hepatitis B or C.
  • Have a history or clinical manifestations of significant renal, hepatic, cardiovascular, metabolic, neurologic, psychiatric, or other condition that would preclude participation in the study.
  • Have a history of migraine or frequent headaches, seizures, or are currently taking anticonvulsants.
  • Have another painful physical condition that may confound the assessments of post operative pain.
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  • Have a history of syncope or other syncopal attacks.
  • Have evidence of a clinically significant 12 lead ECG abnormality.
  • Have a history of alcohol abuse (regularly drinks > 4 units of alcohol per day; 8 oz. beer, 3 oz. wine, 1 oz. spirits) or prescription/illicit drug abuse..
  • Have positive results on the urine drug screen or alcohol breath test indicative of illicit drug or alcohol abuse.
  • Have a history or evidence of orthostatic hypotension.
  • Have a resting heart rate of <50 beats per minutes or systolic blood pressure <100mmHg.
  • Have been receiving or have received chronic opioid therapy defined as greater than 15 morphine equivalents units per day for greater than 3 out of 7 days per week over a one-month period within 12 months.
  • Use concurrent therapy that could interfere with the evaluation of efficacy or safety, such as any drugs which in the investigator's opinion may exert significant analgesic properties or act synergistically with DEX-IN.
  • Unable to discontinue medications, that have not been at a stable dose for at least 14 days prior to the scheduled bunionectomy procedure, within 5 half lives of the specific prior medication (or, if half life is not known, within 48 hours) before dosing.
  • Have utilized any intranasal medications within the preceding 10 days.
  • Have signs or a history of significant rhinitis or rhinorrhea (constant or chronic), nasal polyps, mucosal lesions of the nostril, postnasal drip of any etiology (constant or chronic), nasal ulcers, septal perforation or deviation, any nasal surgery, anosmia, nasal piercings, or frequent nosebleeds or other nasal pathology, that is sufficient to interfere with IN drug delivery.
  • Have had an upper respiratory tract infection within 14 days of screening.
  • Have utilized corticosteroids, either systemically, inhalational either intranasally or oral, or by intra-articular injection, within 14 days prior to the study.
  • Have received any investigational product within 30 days before dosing with study medication.
  • Have previously received DEX-IN in clinical trials, or had bunionectomy in the last 3 months.

Trial locations and contacts

3 sites in 1 country.

United States3 sites
  • Trovare Clinical Research, Inc.

    Bakersfield, California

  • Lotus Clinical Research, LLC

    Pasadena, California

  • Endeavor Clinical Trials, P.A.

    San Antonio, Texas

Other trials in United States

About this study

Official title: A Phase 2, Multicenter, Randomized, Double-Blind, Placebo-Controlled, Evaluation of the Efficacy and Safety of Intranasal Dexmedetomidine for Postoperative Analgesia Following Bunionectomy

The primary objective of this study is to evaluate the analgesic efficacy, on Post-Operative Day (POD) 1, of DEX-IN compared with placebo, using the summed pain intensity difference over the first 48 hours (SPID48) in subjects with acute moderate to severe pain following unilateral bunionectomy.

Being tested
Intranasal Dexmedetomidine, Intranasal Placebo
Keywords
Bunion, Bunionectomy, Pain, Analgesia, dexmedetomidine, intranasal
Medical subject headings
Pain, Postoperative, Bunion, Pain, Agnosia

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Intranasal DexmedetomidineDrug

    Also called DEX-IN

  • Intranasal PlaceboDrug

Study groups in NCT02284243
Study groupRoleWhat they receive
DEX-IN 50mcgExperimentalDEX-IN (Intranasal dexmedetomidine) 50mcg every 6 hours for 48 hours.
Receives: Drug: Intranasal Dexmedetomidine
IN PlaceboPlacebo comparatorIN Placebo every 6 hours for 48 hours.
Receives: Drug: Intranasal Placebo

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Summed Pain Intensity Difference Over the First 48 Hours (SPID48).

    Pain intensity was recorded using a Numeric Pain Rating Scale (Range 0-10) where 0 equates to no pain (better), and 10 equates to the worst pain imaginable (worse). Pain intensity scores were to be recorded at the following time points: 0.25, 0.5, 0.75, 1, 2, 4, and 6 hours post Dose 1. Thereafter pain assessments were to be recorded every 2 hours until 48 hours post Dose 1. Pain intensity differences from baseline were calculated at each time point and a time weighted summed pain intensity difference (SPID) was then calculated. Time weighted SPID calculations were computed by multiplying a weight factor to each score prior to summation. The weight factor at each time point was the time elapsed since the previous observation.

    Measured: 48 hours

Secondary outcomes (6)
  1. SPID at Various Other Time Points

    Pain intensity was recorded using a Numeric Pain Rating Scale (Range 0-10) where 0 equates to no pain (better), and 10 equates to the worst pain imaginable (worse). Pain intensity scores were to be recorded at the following time points: 0.25, 0.5, 0.75, 1, 2, 4, and 6 hours post Dose 1. Thereafter pain assessments were to be recorded every 2 hours until 48 hours post Dose 1. Pain intensity differences from baseline were calculated at each time point and a time weighted summed pain intensity difference (SPID) was then calculated. Time weighted SPID calculations were computed by multiplying a weight factor to each score prior to summation. The weight factor at each time point was the time elapsed since the previous observation.

    Measured: Up to 48 Hours

  2. Time to Perceptible and Meaningful Pain Relief

    Kaplan-Meier analysis of time to perceptible and meaningful pain relief for 50th percentile of subjects. Time to perceptible pain relief and time to meaningful pain relief were measured using the double-stopwatch method. The first stopwatch was given to each subject with the instructions to stop the watch when they first perceive pain relief to occur (time to perceptible relief). Once the first watch was stopped, the second stopwatch was given to the subject with the instructions to stop the watch when they are first experiencing meaningful pain relief (time to meaningful relief). A shorter time to pain relief is better.

    Measured: 6 hours

  3. Number of Subjects With Significant Pain Improvement Following the First Study Dose.

    Measured: 6 hours

  4. Use of Rescue Medication (Oral Opioids)

    Number of subjects requiring rescue medication (Oral opioids) within 48 hours after first study dose

    Measured: 48 hours

  5. Time to First Rescue Medication Use

    Kaplan Meier analysis of time to first use of rescue analgesia 50th percentile of subjects. Rescue analgesia (oral oxycodone) was available to subjects with inadequately controlled pain. All doses of rescue analgesia administered were recorded and the time from the first study dose to first rescue analgesia in each subject was evaluated. A longer time to first rescue is better.

    Measured: 48 hours

  6. Number of Subjects With Complete Protection From PONV

    Measured: 24 hours

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted5 Nov 2014 (estimated)
  2. Study startOct 2014
  3. Primary completionJun 2015
  4. Study completionJun 2015

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 2
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Quadruple blind
Who is masked
Participant, Care provider, Investigator, Outcomes assessor
Enrolment
168 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02284243
Sponsor's protocol ID
REC-14-013
Status last verified
Mar 2017
First submitted
3 Nov 2014
Last updated
2 May 2017
Data monitoring committee
No

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing Intranasal Dexmedetomidine in people with Pain, Post-operative, run by Baudax Bio at 3 sites in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 12 inclusion and 21 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 2 May 2017. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 3 sites in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Yes. Results are posted in the registry (first posted 2 May 2017). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Summed Pain Intensity Difference Over the First 48 Hours (SPID48). (time frame: 48 hours). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 2 May 2017.

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