Moderate to severe chronic pain due to diabetic peripheral neuropathy (DPN) requiring analgesia in subjects with well-controlled and stable type 1 or type 2 diabetes mellitus. MedDRA version: 17.1 Level: PT Classification code 10012680 Term: Diabetic neuropathy System Organ Class: 10029205 - Nervous system disorders
Conditions
Interventions
Product Name: Cebranopadol 100 µg film coated tablet
Product Code: GRT6005
Pharmaceutical Form: Film-coated tablet
INN or Proposed INN: Cebranopadol
Current Sponsor code: GRT6005
Other descriptive na
Sponsors
Grünenthal GmbH
Eligibility
Sex/Gender
All
Inclusion criteria
Inclusion criteria: 1. Informed consent signed (Visit 1). 2. Male or female subjects aged 18 years to 80 years inclusive at the Enrollment Visit (Visit 1). 3. All subjects must have type 1 or type 2 diabetes mellitus and must have a documented clinical diagnosis of painful DPN with symptoms and signs for at least 3 months and pain present at the Enrollment Visit (Visit 1). 4. The investigator considers the subject’s blood glucose to be controlled by a diet, oral anti-hyperglycemic medication, and/or insulin for at least 3 months prior to Enrollment Visit. This control should be documented. Hemoglobin (HbA1C) should not be greater than 11% at the Enrollment Visit (Visit 1). 5. Subject must require medication (non-opioids or opioids up to an equivalent dose of 160 mg oral morphine/day) for the treatment of pain due to DPN for at least 1 month prior to Visit 1 and must be dissatisfied with the current analgesic treatment (in terms of efficacy and/or tolerability). Medication for the treatment of pain due to DPN should be required on at least 4 of 7 consecutive days. 6. Subjects must be using medically acceptable and highly effective methods of birth control (and willing to use them during the trial): For women of childbearing potential: A medically acceptable and highly effective method of birth control is defined as any form of contraception with a low failure rate defined as =65 years) yes F.1.3.1 Number of subjects for this age range 50
Exclusion criteria
Exclusion criteria: 1. Presence of other pain that could confound the assessment of, or contribute to, painful DPN. Such pain could include, but is not limited to, pain due to nerve entrapment (e.g., tarsal tunnel syndrome, osteoarthritis of the knee), peripheral vascular disease, radiculopathy, plantar fasciitis, tendonitis, mononeuritis multiplex, postherpetic neuralgia, complex regional pain syndrome, or fibromyalgia. 2. Neuropathy due to etiologies other than diabetes. These neuropathies include, but are not limited to, those associated with autoimmune disorders, inflammatory neuropathies (e.g., chronic inflammatory demyelinating polyneuropathy), thyroid disease or endocrine disorders (other than diabetes), heavy metal or toxic neuropathy, nutritional deficiency, metabolic disorders, vasculitis, infections, injury, or paraneoplastic syndromes. 3. Severe or extensive diabetic ulcers or amputations of the limbs (i.e., more than 2 toes) or Charcot’s joints due to diabetes. Subjects who have had an amputation for a reason other than diabetes (e.g., injury) may be eligible for this trial. 4. Any clinically significant disease or laboratory findings that in the investigator’s opinion may affect efficacy or safety assessments or may compromise the subject’s safety during trial participation, e.g., significant unstable cardiac, vascular, pulmonary, gastrointestinal, endocrine, metabolic, neurological, or psychiatric disorders. 5. Any medical or other reason (e.g., known or suspected inability of the subject to comply with the protocol and with the use of the IMP) that, in the investigator’s opinion, might indicate that the subject is unsuitable for the trial. 6. Conditions that require treatment with forbidden medication (see Forbidden concomitant treatments). 7. Use of forbidden concomitant medication as specified in Forbidden concomitant treatments. 8. Previous or current alcohol or drug abuse or opioid dependency, according to the investigator’s judgment, based on the subject's history, examination, and the result of the drugs of abuse test. Subjects with positive urine drug test explained by a medically indicated treatment are allowed to participate in the trial as long as not specified otherwise in Forbidden concomitant treatments. 9. Subjects with severe functional hepatic impairment corresponding to Child-Pugh classification C. Subjects with impaired hepatic cellular integrity indicated by aspartate transaminase (AST) or alanine transaminase (ALT) greater than 3 x the upper limit of normal (ULN). 10. History of acute hepatitis within 3 months of Visit 1 or chronic hepatitis or a positive result on anti-hepatitis A IgM antibody within the past 6 months, hepatitis B surface antigen, or anti–hepatitis C antibody. 11. Subjects with impaired renal function with a creatinine clearance less than 60 mL/min at the Enrollment Visit (Visit 1) (calculated from the Cockcroft-Gault [1976] formula). 12. History of any major gastrointestinal prior procedures (e.g., gastric bypass) or gastrointestinal conditions (e.g., acute diarrhea, blind loop syndrome, gastric dumping syndrome, Whipple’s disease) that might affect the absorption or metabolism of cebranopadol. 13. Presence of risk factors for (e.g., heart failure, hypokalemia, or bradycardia) or history of torsade de pointes and/or marked prolongation of the corrected QT (Fridericia) (QTcF >450 ms). 14. History of seizure disorder and/or epilepsy or any condition associated with a significant risk
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Main Objective: To assess the analgesic efficacy, safety, and tolerability of once daily orally administered cebranopadol in a total of 3 fixed doses (100 µg, 300 µg, and 600 µg cebranopadol) compared to placebo in subjects with moderate to severe chronic pain due to DPN.;Secondary Objective: Not Applicable;Primary end point(s): The primary endpoint will be the change from baseline pain to the average 24 hour pain during Week 6 of the Maintenance Phase. The 24 hour pain will be assessed once daily (evening) using an 11 point numeric rating scale (NRS) and a 24 hour recall period;Timepoint(s) of evaluation of this end point: Week 6 of the maintenance phase | — |
Secondary
| Measure | Time frame |
|---|---|
| Secondary end point(s): n.a.;Timepoint(s) of evaluation of this end point: n.a. | — |
Countries
Austria, Belgium, Denmark, France, Germany, Italy, Netherlands, Spain, United States
Contacts
Public ContactGRT Trial Information Desk
Grünenthal GmbH
Outcome results
None listed