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Diabetic Peripheral Neuropathic PainPhase 4NCT02156336

Ranolazine for Diabetic Peripheral Neuropathic Pain (DPNP)

A Phase 4 study testing Ranolazine in people with Diabetic Peripheral Neuropathic Pain, run by Horizons International Peripheral Group at 3 sites in United States.

Terminated

Stopped early. The study ended before it was planned to and will not resume.

Official record
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Trial summary

The purpose of this trial is to determine if patients suffering from diabetic peripheral neuropathic pain treated with ranolazine will have a greater reduction in pain compared to placebo. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Diabetic Peripheral Neuropathic Pain
What is being tested?
Ranolazine
Type of treatment
Pill or oral medicine
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
4 participants
Where
3 sitesUnited States
Study dates
May 2014to 8 Feb 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 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • A minimum of 18 years of age;
  • Provided signed Informed Consent Form and Health Insurance Portability and Accountability Act (HIPAA) authorization for this study approved by the Institutional Review Board;
  • Patients must have diabetic peripheral neuropathic pain rated at an average level of six (6) or above as documented in daily diary prior to baseline visit and noted at Baseline Visit;
  • Diabetic on a stable insulin regimen or oral medication regimen as determined by the investigator [It is recommended Hba1c < 9.5%, making a note that lab normal values may vary among sites.];
  • Clinical Exam Results:
  • 5.07 Semmes-Weinstein Monofilament Test Subject does not sense monofilament or evokes an abnormal response in a minimum of two (2) out of five (5) test locations on the plantar surface of the foot.
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  • Pin Prick Test Subject experiences allodynia, hyperalgesia, or sensory loss in two (2) out of five (5) test locations in the plantar surface - four (4) and dorsum - one (1) of the foot.
  • Willing and able to comply with the requirements of the protocol and follow directions from the clinic and research staff;
  • For female patients only:
  • Be post-menopausal (no menses for at least 2 years) or sterilized,
  • If subject of childbearing potential, not breastfeeding, has a negative pregnancy test at Baseline (pre-randomization, Day 0), has no intention of becoming pregnant during the course of the study, and is using one or more of the following contraceptive measures:
  • Stable regimen of hormonal contraception
  • Intra-uterine device
  • Condoms with spermicide
  • Diaphragm with spermicide

Who cannot join

  • History of allergy or intolerance to ranolazine;
  • Any condition or concomitant medication that would preclude the safe use of ranolazine as outlined in the prescribing information sheet;
  • In the judgment of the investigator, any clinically-significant ongoing medical condition that might jeopardize the patient's safety or interfere with the absorption, distribution, metabolism or excretion of the study drug;
  • In the judgment of the investigator, clinically-significant abnormal physical findings during screening (excluding the patient's peripheral neuropathy condition);
  • Use participation in another experimental or investigational drug or device trial;
  • Pregnant or breast feeding;
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  • Cirrhosis of the liver;
  • Psychological or addictive disorders (not limited to, but including for example, drug and/or alcohol dependency) that may preclude patient consent or compliance, or that may confound study interpretation;
  • Taking a moderate or strong CYP3A inhibitor (e.g. diltiazem, verapamil, ketoconazole, itraconazole, clarithromycin, erythromycin, nefazodone, nelfinavir, ritonavir, indinavir, and saquinavir);
  • Taking inducers of Cytochrome P450, family 3, subfamily A (CYP3A) (e.g. rifampin, rifabutin, rifapentine, phenobarbital, phenytoin, carbamazepine, and St. John's wort);
  • Renal impairment as defined by a calculated serum creatinine clearance of < 30ml/min;
  • Lower back disorders where symptoms present similarly to DPNP;
  • Family history of long QT syndrome;
  • Congenital long QT syndrome;
  • Subjects taking tricyclic antidepressants;
  • Subjects taking anti-psychotic drugs;
  • Patient is taking > 850mg metformin BID;
  • Any subjects currently taking pregabalin;
  • Any subjects currently taking gabapentin;
  • Any subject currently taking Metanx®;
  • Any subjects currently taking continuous long-term narcotics;
  • Grapefruit and grapefruit containing products;
  • Use of P-gp inhibitors - cyclosporine.

Trial locations and contacts

3 sites in 1 country.

United States3 sites
  • Cardiology Associates

    Fairhope, Alabama, 36532

  • Cardiovascular Institute of the South

    Houma, Louisiana, 70361

  • Cardiovascular Institute of the South

    Lafayette, Louisiana, 70503

Other trials in United States

About this study

Official title: A Double-Blind, Placebo-Controlled, Randomized, Parallel Assignment, U.S. Study of Ranolazine for the Treatment of Patients With Diabetic Peripheral Neuropathic Pain (DPNP)

The purpose of this trial is to determine if patients suffering from diabetic peripheral neuropathic pain treated with ranolazine will have a greater reduction in pain compared to placebo.

Hypothesis: From the prior clinical observations, and analgesic efficacy in the preclinical animal model of neuropathic pain, the investigators hypothesize that subjects randomized to ranolazine will show a greater reduction in diabetic neuropathic pain compared to placebo.

Being tested
Ranolazine, Placebo
Keywords
Diabetic Peripheral Neuropathic Pain, Ranexa, Ranolazine, Neurology

What participants receive

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

  • RanolazineDrug

    Also called Ranexa

    Oral administration, BID; for a maximum of 51 days.

  • PlaceboDrug

    Also called Sugar Pill

    Oral administration, BID; for a maximum of 51 days.

Study groups in NCT02156336
Study groupRoleWhat they receive
PLACEBOPlacebo comparator* 500 mg PLACEBO PO 2 times a day for 1 week (Week 1) * 1000 mg PLACEBO PO 2 times a day for 5 weeks (Weeks 2,3,4,5,6)
Receives: Drug: Placebo
RANOLAZINEActive comparator* 500 mg RANOLAZINE PO 2 times a day for 1 week (Week 1) * 1000 mg RANOLAZINE PO 2 times a day for 5 weeks (Weeks 2,3,4,5,6)
Receives: Drug: Ranolazine

What is being measured

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

  1. Fifty percent or greater reduction in the mean Numeric Rating Scale (11-point NRS 0-10) recorded in the subjects' diaries from ranolazine compared to placebo.

    Measured: 6 weeks (42 Days)

Secondary outcomes (7)
  1. Change in Quality of Life Assessment as measured by SF-36 v2

    Measured: Randomization (Day 0) and Day 42

  2. Change in pain assessment measured by the Visual Analog Scale

    Measured: Randomization (Day 0), Day 14, Day 28, Day 42, and Day 56

  3. Change in pain assessment measured by Short-Form McGill Pain Questionnaire

    Measured: Randomization (Day 0) and Day 42

  4. Change in pain of patients with arterial ischemia measured by Short-Form McGill Pain Questionnaire

    Pain reduction of ranolazine versus placebo in subjects with diabetic peripheral neuropathic pain (DPNP) and arterial ischemia compared to those with DPNP without arterial ischemia.

    Measured: Randomization (Day 0), Day 14, Day 28, Day 42, and Day 56

  5. Additional pain medication

    Additional pain medication after the baseline visit as needed for pain reduction in addition to the study drug.

    Measured: Randomization (Day 0), Day 14, Day 28, Day 42, and Day 56

  6. Occurrence of Adverse Events after randomization

    The rates and severity of Adverse Events (AEs) from Randomization (Day 0) through Termination (Day 56)

    Measured: 56 Days

  7. Occurrence of Serious Adverse Events after randomization

    A serious adverse event (SAE), also may be called a serious adverse drug reaction, is any untoward medical occurrence that at any dose:

    • results in death,
    • is life-threatening,
    • requires inpatient hospitalization or prolongation of existing hospitalization,
    • results in persistent or significant disability/incapacity, or
    • is a congenital anomaly/birth defect.

    Measured: 56 Days

Timeline

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

  1. First posted5 Jun 2014 (estimated)
  2. Study startMay 2014
  3. Primary completion8 Feb 2017
  4. Study completion8 Feb 2017

Why it stopped: Not enough patients met study criteria for enrollment.

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
Parallel groups
Masking
Quadruple blind
Who is masked
Participant, Care provider, Investigator, Outcomes assessor
Enrolment
4 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02156336
Sponsor's protocol ID
HIPG-CLIN-2014-01
Status last verified
Feb 2017
First submitted
28 May 2014
Last updated
10 Feb 2017
Results posted
No
Data monitoring committee
No

Publications

  • Gould HJ 3rd, Garrett C, Donahue RR, Paul D, Diamond I, Taylor BK. Ranolazine attenuates behavioral signs of neuropathic pain. Behav Pharmacol. 2009 Dec;20(8):755-8. doi: 10.1097/FBP.0b013e3283323c90.

    PubMed 19773645

Questions about this trial

What is this clinical trial studying?

A Phase 4 study testing Ranolazine in people with Diabetic Peripheral Neuropathic Pain, run by Horizons International Peripheral Group 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 15 inclusion and 23 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: stopped early, as of the sponsor's last update on 10 Feb 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 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?

The study was stopped early (reason given: Not enough patients met study criteria for enrollment.). 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?

Fifty percent or greater reduction in the mean Numeric Rating Scale (11-point NRS 0-10) recorded in the subjects' diaries from ranolazine compared to placebo. (time frame: 6 weeks (42 Days)). 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 NCT02156336, 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 10 Feb 2017; AzTrials last refreshed its copy on 6 Nov 2026.

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