Post-herpetic neuralgia MedDRA version: 20.0 Level: PT Classification code 10036376 Term: Post herpetic neuralgia System Organ Class: 10029205 - Nervous system disorders
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: • At the time of Screening, have documented diagnosis of PHN (ICD-10 code B02.29), defined as pain in the region of the rash persisting for more than 6 months after onset of herpes zoster rash. • Be assessed as suffering from moderate to severe neuropathic pain across the Screening epoch (NRS = 4). • Patients must have documented past and/or ongoing inadequate treatment response (having insufficient pain relief with treatment or inability to tolerate) to at least 2 different prescribed therapies\Analgesics commonly used to treat and considered effective for the treatment of PHN. • Patients must be willing to complete daily eDiary. Other protocol-defined inclusion criteria may apply. Are the trial subjects under 18? no Number of subjects for this age range: F.1.2 Adults (18-64 years) yes F.1.2.1 Number of subjects for this age range 180 F.1.3 Elderly (>=65 years) yes F.1.3.1 Number of subjects for this age range 180
Exclusion criteria
Exclusion criteria: • Electrocardiogram (ECG) abnormalities indicating significant risk of safety for patients participating in the study. • Major depressive episode within 6 months prior to Screening and/or a history of diagnosed recurrent major depressive disorder according to Diagnostic and Statistical Manual of Mental Disorders, 5th Edition (DSM-V) diagnostic criteria. • Women of child-bearing potential, defined as all women physiologically capable of becoming pregnant unless they are using highly effective methods of contraception during dosing and for 3 days after stopping study medication. • Have evidence of significant renal insufficiency or pre-existing liver condition. • Have platelets = 100 x 10^9/L, or neutrophil count 8%. Those who do not have a known diagnosis of diabetes with a hemoglobin A1c > 7%. Other protocol-defined exclusion criteria may apply.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Main Objective: To characterize dose response, and evaluate safety and efficacy of three different doses of EMA401 compared to placebo in patients with post-herpetic neuralgia (PHN);Secondary Objective: • To compare efficacy of EMA401 vs placebo in 24-hour average pain intensity score, using an 11 point Numeric Rating Scale (NRS) by testing the superiority of at least one active dose of EMA401 vs. placebo • To evaluate efficacy, as measured by the Brief Pain Inventory-Short Form (BPI-SF) interference total score • To evaluate efficacy, as measured by the weekly mean of the 24-hour worst pain intensity score, using an 11-point NRS • To evaluate efficacy, on the Patient Global Impression of Change (PGIC) • To evaluate proportion of patients achieving a = 30% and a = 50% reduction in weekly mean 24-hour average pain intensity score using the NRS (i.e., responder rates) • To evaluate effect on the Insomnia Severity Index (ISI) • To evaluate effect on the Neuropathic Pain Symptom Inventory (NPSI) • To evaluate safety and tolerability in PHN patients • To evaluate pharmacokinetics of EMA401 and exposure-response (decrease in pain intensity) relationship for EMA401 ;Primary end point(s): Dose-response in change in weekly mean of the 24-hour average pain score, using an 11-point Numeric Rating Scale (NRS), from Baseline to Week 12;Timepoint(s) of evaluation of this end point: Baseline, Week 12 | — |
Secondary
| Measure | Time frame |
|---|---|
| Secondary end point(s): • Change in weekly mean 24-hour average pain score (using the 11 point Numerical Rating Scale) from Baseline to Week 12 • Change in Brief Pain Inventory-Short Form interference total score from Baseline to Week 12 • Change in weekly mean of the 24-hour worst pain score, using an 11-point NRS, from Baseline to Week 12 • Patient Global Impression of Change at Week 12 • Proportion of patients meeting responder criteria from Baseline to Week 12 • Change in Insomnia Severity Index from Baseline to Week 12 • Change in Neuropathic Pain Symptom Inventory from Baseline to Week 12 • Number and severity of treatment emergent adverse events and the frequency of adverse events leading to discontinuation. Number of serious adverse events. • Pharmacokinetics of EMA401 and exposure-response (decrease in pain intensity) relationship for EMA401;Timepoint(s) of evaluation of this end point: For full details, please refer to the schedule of assessments table in the protocol. | — |
Countries
Austria, Belgium, Canada, Czech Republic, Denmark, France, Germany, Hungary, Italy, Japan, Norway, Poland, Portugal, Slovakia, Spain, Sweden, United Kingdom, United States
Contacts
Novartis Pharma GmbH