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Chronic PainPhase 4NCT00930943

Effect of Extended-release Oxymorphone Taken With or Without Food on Cognitive Functioning

A Phase 4 study testing Oxymorphone ER in people with Chronic Pain, run by MedVadis Research Corporation at 1 site 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 purpose of the study is to determine whether extended-release oxymorphone hydrochloride taken orally with a high-fat meal, generating an approximately 50% higher Cmax, impacts cognitive functioning, using Cambridge Neuropsychological Test Automated Battery (CANTAB) tests, to a greater extent than when taking under… Read more about this study

Who is it for?
Ages 18 to 65 years
Conditions the study is for
Chronic Pain
What is being tested?
Oxymorphone ER
Could I receive a placebo?
No, everyone receives an active treatment
How many people
30 participants
Where
1 siteUnited States
Study dates
May 2009to Nov 2009
Phase
Phase 4
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 65 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Man or woman, 18-65 years of age, inclusive
  • Able to provide informed consent and comply with all study procedures
  • Women of childbearing potential with a negative urine pregnancy test at screening and on adequate contraception
  • Chronic, non-malignant, painful condition, treated with long-acting opioid (methadone, OxyContin®, MS (Morphine Sulfate) Contin®, Kadian®, Avinza®, Fentanyl®, Opana® ER)
  • Opioid treatment for at least 3 months prior to screening at a minimum dose of 90 mg of morphine equivalents per day or 50 mcg of the fentanyl transdermal patch
  • Dose of opioid treatment stable for at least 1 week prior to screening and expected to be stable from screening through end of second testing
  • Weight at screening 100-300 pounds, inclusive

Who cannot join

  • Pregnant or breastfeeding
  • Gastrointestinal disorder or S/P gastrointestinal surgery impacting absorption of study medication (delayed gastric emptying, partial or complete gastrectomy)
  • Alcohol or substance abuse within 2 years of screening
  • Consumption of alcohol within 24 hours of a screening or testing visit
  • Consumption of xanthine-containing beverages (coffee, tea, coke) on the morning of a screening or testing visit
  • Impaired kidney or liver function (transaminase levels more than 3 times elevated; estimated creatinine clearance less than 50 mL/min)
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  • Epworth sleepiness scale (ESS) score 16 or higher at screening
  • Medically concerning hypertension (≥ 160/100) or unstable cardiovascular illness
  • Any clinically significant illness that would interfere with study participation or put the subject at risk
  • Exposure to investigational medication within 30 days of screening

Trial locations and contacts

1 site in 1 country.

United States1 site
  • MedVadis Research Corporation

    Wellesley Hills, Massachusetts, 02481

Other trials in United States

About this study

Official title: Effect of Extended-release Oxymorphone Hydrochloride (Opana® ER), Taken Fasting Versus With Food, on Cognitive Functioning in Opioid-tolerant Subjects: a Randomized, Single-blinded, Cross-over Study

The purpose of the study is to determine whether extended-release oxymorphone hydrochloride taken orally with a high-fat meal, generating an approximately 50% higher Cmax, impacts cognitive functioning, using Cambridge Neuropsychological Test Automated Battery (CANTAB) tests, to a greater extent than when taking under conditions of fasting.

Read the detailed description

Oxymorphone 40 mg ER affects cognitive performance similarly within 3 hours post dose, whether given on an empty stomach or after a high-fat meal, suggesting that the altered pharmacokinetics, fed versus fasting and as described above, is not relevant for the medication's impact on cognition. Hence, the direction for oxymorphone ER to be dosed at least 1 hour before or 2 hours after eating, at least from a cognitive perspective, may be without merit.

Conditions
Chronic Pain
Being tested
Oxymorphone ER
Keywords
opioid tolerant, chronic pain
Medical subject headings
Chronic Pain

What participants receive

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

  • Oxymorphone ERDrug

    Also called Opana ER

    40 mg qd twice

Study groups in NCT00930943
Study groupRoleWhat they receive
Oxymorphone ER 40 mg fedExperimentalParticipants received 40 mg oxymorphone ER after a high-fat meal of approximately 1,010 kCal
Receives: Drug: Oxymorphone ER
Oxymorphone ER 40 mg fastingExperimentalParticipants received 40 mg oxymorphone ER after fasting for 8-12 hours
Receives: Drug: Oxymorphone ER

What is being measured

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

  1. Rapid Visual Information Processing (RVP) Sensitivity [A']

    RVP is a test of sustained attention. It is a sensitive measure of general cognitive performance. A white box appears in the center of the computer screen, inside which digits, from 2 to 9, appear in a pseudorandom order, at the rate of 100 digits per minute. The subject is requested to detect target sequences of three digits (for example, 2-4-6, 3-5-7, 4-6-8) and to register responses using the response box. The two main outcome measures are the probability to detect the predefined sequence (sensitivity [A']) and the speed at which the sequence is registered (response latency [ms]).

    Measured: 1 and 3 hours postdose

  2. Rapid Visual Information Processing (RVP) Response Latency

    RVP is a test of sustained attention. It is a sensitive measure of general cognitive performance. A white box appears in the center of the computer screen, inside which digits, from 2 to 9, appear in a pseudorandom order, at the rate of 100 digits per minute. The subject is requested to detect target sequences of three digits (for example, 2-4-6, 3-5-7, 4-6-8) and to register responses using the response box. The two main outcome measures are the probability to detect the predefined sequence (sensitivity [A']) and the speed at which the sequence is registered (response latency [ms]).

    Measured: 1 and 3 hours postdose

Secondary outcomes (4)
  1. Spatial Recognition Memory (SRM) Test Percentage of Correct Hits

    SRM tests visual spatial recognition memory in a two-choice forced discrimination paradigm. The subject is presented with a white square, which appears in sequence at five different locations on the screen. In the recognition phase, the subject sees a series of five pairs of squares, one of which is in a place previously seen in the presentation phase. The other square is in a location not seen in the presentation phase. Locations are tested in the reverse of the presentation order. The two main outcome measures are the percentage of correct trials (correct hits [%]) and the speed of the subject's response (response latency [ms]).

    Measured: 1 and 3 hours postdose

  2. Spatial Recognition Memory (SRM) Test Response Latency

    SRM tests visual spatial recognition memory in a two-choice forced discrimination paradigm. The subject is presented with a white square, which appears in sequence at five different locations on the screen. In the recognition phase, the subject sees a series of five pairs of squares, one of which is in a place previously seen in the presentation phase. The other square is in a location not seen in the presentation phase. Locations are tested in the reverse of the presentation order. The two main outcome measures are the percentage of correct trials (correct hits [%]) and the speed of the subject's response (response latency [ms]).

    Measured: 1 and 3 hours postdose

  3. Spatial Working Memory (SWM) Test Total Errors

    SWM is a test of the subject's ability to retain spatial information and to manipulate remembered items in working memory. It is a self-ordered task, which also assesses heuristic strategy. The test is a sensitive measure of executive function. It begins with a number of colored squares (boxes) being shown on the screen. By touching the boxes and using a process of elimination, the subject finds blue tokens in a number of boxes and uses them to fill up an empty column on the screen. The number of boxes is gradually increased, until it is necessary to search a total of eight boxes. The color and position of the boxes are changed from trial to trial to discourage the use of stereotyped search strategies. The two main outcome measures are errors (touching boxes that have been found to be empty and revisiting boxes that have already been found to contain a token - total errors) and a measure of strategy (strategy score).

    Measured: 1 and 3 hours postdose

  4. Spatial Working Memory (SWM) Test Strategy Score

    SWM is a test of the subject's ability to retain spatial information and to manipulate remembered items in working memory. The test is a sensitive measure of executive function. It begins with a number of colored squares (boxes) being shown on the screen. By touching the boxes and using a process of elimination, the subject finds blue tokens in a number of boxes and uses them to fill up an empty column on the screen. The number of boxes is gradually increased, until it is necessary to search a total of eight boxes. The color and position of the boxes are changed from trial to trial to discourage the use of stereotyped search strategies. The two main outcome measures are errors (touching boxes that have been found to be empty and revisiting boxes that have already been found to contain a token - total errors) and a measure of strategy (For assessed problems with six boxes or more, the number of distinct boxes used by the subject to begin a new search for a token)

    Measured: 1 and 3 hours postdose

Timeline

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

  1. First posted2 Jul 2009 (estimated)
  2. Study startMay 2009
  3. Primary completionNov 2009
  4. Study completionNov 2009

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
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Crossover
Masking
Single blind
Who is masked
Outcomes assessor
Enrolment
30 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00930943
Sponsor's protocol ID
2009-133A
Status last verified
May 2023
First submitted
29 Jun 2009
Last updated
9 May 2023
Data monitoring committee
No

Publications

  • Spierings EL, Volkerts ER, Heitland I, Thomson H. A randomized, rater-blinded, crossover study of the effects of oxymorphone extended release, fed versus fasting, on cognitive performance as tested with CANTAB in opioid-tolerant subjects. Pain Med. 2014 Feb;15(2):264-71. doi: 10.1111/pme.12307. Epub 2013 Dec 11.

    PubMed 24330343

Questions about this trial

What is this clinical trial studying?

A Phase 4 study testing Oxymorphone ER in people with Chronic Pain, run by MedVadis Research Corporation 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 7 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: finished, as of the sponsor's last update on 9 May 2023. 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. 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?

Yes. Results are posted in the registry (first posted 9 May 2023). 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?

Rapid Visual Information Processing (RVP) Sensitivity [A'] (time frame: 1 and 3 hours postdose). The study lists 2 primary outcomes in all. 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 NCT00930943, 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 9 May 2023.

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