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Acute PainPhase 4NCT02620631

Study to Examine Pain Relief With Supplemental Intrathecal Morphine in TKA Patients

A Phase 4 study testing Morphine in people with Acute Pain, run by Stony Brook University at 1 site in United States.

Unknown status

Status not confirmed. The sponsor has not verified this record for over two years, so it may be out of date.

Official record
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Trial summary

This is a prospective, randomized, double-blinded, placebo-controlled study designed to examine pain relief following intrathecal morphine sulfate (0.2mg) in patients undergoing total knee arthroplasty (TKA) under spinal anesthesia in addition to a femoral nerve catheter. Read more about this study

Who is it for?
Ages 18 to 80 years
Conditions the study is for
Acute Pain
What is being tested?
Morphine
Type of treatment
Injection or infusion
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
54 participants
Where
1 siteUnited States
Study dates
Mar 2011to Jan 2017
Phase
Phase 4
Are there results?
None posted in the registry

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 80 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Scheduled for unilateral TKA under regional anesthesia
  • ASA Class 1, 2 or 3
  • Able to give informed consent
  • Able to understand English

Who cannot join

  • Medical condition(s) that prevents use of regional anesthesia (e.g. infection at site of injection, coagulopathy, severe hypovolemia, severe aortic or mitral stenosis, increased intracranial pressure, severe spinal deformity, spinal cord hardware or stimulator implanted)
  • Allergy to morphine
  • Morbid obesity (BMI > 45)
  • Respiratory compromise (difficult airway, severe emphysema or COPD)
  • Obstructive sleep apnea (only if diagnosed in a sleep disorders clinic and CPAP was prescribed)
  • Chronic pain with opioid usage over 100 mg morphine-equivalents po/day
Show all 10Show fewer
  • History of abuse of opioids or other drugs of abuse
  • Scheduled for bilateral TKA
  • Revision of knee arthroplasty
  • Any medical condition that would affect the patient's ability to metabolize or excrete the study drugs (e.g. chronic kidney failure with patient on dialysis) or other medical condition that in the investigator's opinion would render the patient unsuitable for this research study

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Stony Brook University Hospital

    Stony Brook, New York, 11794

Other trials in United States

About this study

Official title: Prospective, Randomized, Double-blinded, Placebo-controlled Study to Examine Pain Relief and the Need for Supplementary Analgesics With Intra-thecal Morphine Sulfate (0.2 mg) in Patients Undergoing Total Knee Arthroplasty (TKA)

This is a prospective, randomized, double-blinded, placebo-controlled study designed to examine pain relief following intrathecal morphine sulfate (0.2mg) in patients undergoing total knee arthroplasty (TKA) under spinal anesthesia in addition to a femoral nerve catheter. The protocol consists of two parts: (1) a prospective patient recruitment study and (2) a retrospective assay for endocannabinoids on previously collected specimens.

Read the detailed description

This is a prospective, case-controlled randomized, double-blinded, placebo-controlled study expected to enroll up to 100 patients scheduled to undergo unilateral total knee arthroplasty (TKA) under regional anesthesia (defined as intrathecal spinal + femoral nerve blockade + femoral nerve catheter for post-operative analgesia) at Stony Brook Hospital. The patients were randomized to receive either IT morphine 0.2 mg (Group 1) or placebo (Group 2) in combination with their standard-of-care spinal anesthesia. Post-operatively, the patients were given an intravenous patient-controlled analgesic opioid for breakthrough pain.

Only the pharmacist preparing the drug/placebo has knowledge of how each subject was randomized. Study staff completed multiple questionnaires regarding subjects' pain scores and patient disability from pain to assess changes between different study periods (ie. pre-operative, post-operative and follow up). Biological samples were also taken from each subject to measure and analyze differences and changes in endocannabinoid levels.

Conditions
Acute Pain
Being tested
Morphine, Placebo
Keywords
Morphine, TKA, Pain, TKR, Arthroplasty
Medical subject headings
Acute Pain, Pain

What participants receive

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

  • MorphineDrug

    Also called Preservative-free morphine sulfate

    Subjects receive intrathecal morphine pre-operatively to determine its level of efficacy in acute pain control post-operatively when used in conjunction with post-operative PCA morphine

  • PlaceboDrug

    Also called Preservative-free normal saline

    Subjects receive intrathecal, preservative-free normal saline pre-operatively in conjunction with post-operative PCA morphine

Study groups in NCT02620631
Study groupRoleWhat they receive
PlaceboPlacebo comparatorSubjects receive intrathecal injection of saline at time of spinal anesthesia
Receives: Drug: Placebo
MorphineExperimentalSubjects receive intrathecal injection of morphine sulfate 0.2mg at time of spinal anesthesia
Receives: Drug: Morphine

What is being measured

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

  1. Acute pain at rest

    Numerical rating scale pain scores were collected every 4 hours

    Measured: 0-24 hours

Secondary outcomes (1)
  1. Total opioids dispensed

    Total dosage of opioids (in morphine equivalent doses) measured over 24 hours

    Measured: 0-24 hours

Timeline

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

  1. First posted3 Dec 2015 (estimated)
  2. Study startMar 2011
  3. Primary completionFeb 2014
  4. Study completionJan 2017 (estimated)

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 4
Allocation
Randomised
Intervention model
Parallel groups
Masking
Quadruple blind
Who is masked
Participant, Care provider, Investigator, Outcomes assessor
Enrolment
54 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02620631
Sponsor's protocol ID
200362
Status last verified
Dec 2015
First submitted
1 Dec 2015
Last updated
3 Dec 2015
Results posted
No
Data monitoring committee
No

Publications

  • Kaczocha M, Azim S, Nicholson J, Rebecchi MJ, Lu Y, Feng T, Romeiser JL, Reinsel R, Rizwan S, Shodhan S, Volkow ND, Benveniste H. Intrathecal morphine administration reduces postoperative pain and peripheral endocannabinoid levels in total knee arthroplasty patients: a randomized clinical trial. BMC Anesthesiol. 2018 Feb 27;18(1):27. doi: 10.1186/s12871-018-0489-5.

    PubMed 29486720

Questions about this trial

What is this clinical trial studying?

A Phase 4 study testing Morphine in people with Acute Pain, run by Stony Brook University at 1 site 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 4 inclusion and 10 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: status not confirmed, as of the sponsor's last update on 3 Dec 2015. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site 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 4 studies take place after a treatment is approved, to learn more about its long-term benefits and risks in everyday use.

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

Are results available for this study?

Results are not available in the source record.

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?

Acute pain at rest (time frame: 0-24 hours). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT02620631, which also lists 1 linked publication.

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 3 Dec 2015.

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