A Phase IIa randomised, double-blind, placebo controlled, parallel group, multicentre study evaluating the efficacy, safety, tolerability and pharmacokinetics of AZD1386 after 3 weeks of treatment in patients with Posttraumatic Neuralgia (PTN) and Postherpetic Neuralgia (PHN)
- Conditions
- Patients with Posttraumatic Neuralgia (PTN) and Postherpetic Neuralgia (PHN)Intended Indication is Neuropathic PainMedDRA version: 9.1Level: LLTClassification code 10029223Term: Neuralgia
- Registration Number
- EUCTR2009-012094-35-FR
- Lead Sponsor
- AstraZeneca AB
- Brief Summary
Not available
- Detailed Description
Not available
Recruitment & Eligibility
- Status
- ot Recruiting
- Sex
- All
- Target Recruitment
- 90
1.Provision of informed consent prior to any study specific procedures
2.Male or female patients =18 and <80 years of age. Females must not be of childbearing potential or must have a highly effective contraceptive method for the last 3 months, as described in Appendix D.
Women not being of childbearing potential are defined as women who are permanently or surgically sterilized or postmenopausal. Permanent sterilisation includes hysterectomy and/or bilateral oophorectomy and/or bilateral salpingectomy but excludes bilateral tubal occlusion. Postmenopausal women are defined as over 50 years old and have been amenorrheic for 12 months or more, following cessation of all exogenous hormonal treatments, or over 57 years old.
3.Patients with painful symptoms due to neuropathic pain for a period of three months to five years. At examination patients have to have mechanical hypersensitivity (allodynia and/or punctate hyperalgesia).
Definition of allodynia: A painful sensation to a non-painful stimulus.
Definition of hyperalgesia: An exaggerated painful sensation to a painful stimulus.
Patients will be eligible for inclusion if all criteria for one of the following disease-specific criteria are met:
-PTN: Pain directly related to peripheral nerve injury caused by trauma or surgery and not associated with ongoing infection. Examples include but are not limited to post-inguinal herniorrhaphy syndrome, post-thoracotomy syndrome, and traumatic mononeuropathies.
-PHN: A history of Herpes Zoster (Shingles) with pain persisting in the affected skin area at least three months after resolution of the skin rash.
4.A pain intensity (7 days recall) of =4 to =9 on NRS (0-10) is required for enrolment.
At randomisation (Visit 3) a 4-day mean baseline pain intensity (12 h recall twice daily, morning and evening) of =4 to =9 is required. The patient is also required to complete at least 3 out of 4 morning and evening baseline NRS assessments (evening of Day – 4 until morning of Day 1) to be eligible.
5.Patients must be both willing and able to comply with and understand the study requirements.
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
F.1.3 Elderly (>=65 years) yes
F.1.3.1 Number of subjects for this age range
1.Other pain conditions that may confound assessment of neuropathic pain, as judged by the investigator
2.Central neuropathic pain conditions such as associated with stroke, multiple sclerosis, or spinal cord injury
3.Any prior treatment of neuropathic pain with neurolytic therapy, intrathecal pump, spinal cord stimulator or neurosurgery
4.History, and/or presence, of somatic disease/condition, which may interfere with the objectives of the study as judged by the investigator
5.Diagnosis of any severe neurological disease (e.g. epilepsy, MS, Parkinson´s disease, neurodegenerative disease) as judged by the investigator
6.Malabsorption, gastrointestinal disorder or surgery leading to impaired drug absorption
7.History of malignancy, treated or untreated, within the past 5 years, with the exception of successfully treated basal cell or squamous cell carcinoma of the skin
8.Risk factors for ventricular fibrillation (e.g. family history of Short QT syndrome (SQTS) or sudden cardiac death (SCD) amongst first-degree relatives
9.QTcF interval <350 msec or >450 msec at enrolment
10.A recent history (in the past 3 months) suggestive of alcohol or drug abuse or dependence, including overuse/abuse of narcotics for management of pain
11.Enrolment laboratory value for ALT, AST >2 times the upper limit of normal range
12.Positive test result for hepatitis B surfactant antigen (HbsAg) or hepatitis C antibody
13.Known or suspected human immunodeficiency virus (HIV) infection, as judged by the investigator
14.Clinically significant abnormalities in clinical chemistry, haematology or urinalysis results as judged by the investigator
15.Use of any prohibited medication at V2
16.History of treatment failure with = 3 adequate trials of medication used to treat neuropathic pain. Failure could be insufficient efficacy or discontinuation due to side effects.
17.History of significant psychiatric disease/disorder that could preclude reliable participation in the study in the judgement of the investigator. Subjects with a diagnosis of depression who are in remission for at least 12 weeks before enrolment with or without stable selective serotonin reuptake inhibitor (SSRI) treatment are allowed in the study.
18.Patients involved in processes regarding monetary compensation due to the condition under study (e.g. insurance issues).
19.Breast-feeding women
20.Positive pregnancy test
21.Donation of plasma within the two weeks prior to the enrolment visit and/or donation of blood within the three months prior to the enrolment visit and during the study
22.Involvement in the planning and/or conduct of the study (applies to both AstraZeneca staff and/or staff at the study site)
23.Participation in other clinical trial, use of any investigational drugs or procedures or use of experimental medications within 30 days prior to the enrolment visit
24.According to the investigator the patient should not participate in the study
25.Clinically significant illness within two weeks before the administration of the investigational product, as judged by the investigator
26.Patients with a cognitive disorder which would impair cooperation with study procedures, as judged by the investigator
27.Previous randomisation in the present study
28.A history of symptoms of hypersensitivity reactions (such as asthma, rhinitis or urticaria) or contraindications to paracetamol/acetaminophen
29.Positive urine drugs of abuse screen including cannabis, cocaine, heroin/m
Study & Design
- Study Type
- Interventional clinical trial of medicinal product
- Study Design
- Not specified
- Primary Outcome Measures
Name Time Method Main Objective: to evaluate the analgesic efficacy of 21 days of oral administration of AZD1386 compared to placebo in patients with Post Traumatic Neuralgia (PTN) or Post Herpetic Neuralgia (PHN) with mechanical hypersensitivity;Secondary Objective: 1. To evaluate the response rate of patients to AZD1386 versus placebo.<br>2. To evaluate the effect of AZD1386 on different components of pain compared to placebo.<br>3. To evaluate the effect of AZD1386 on different descriptors of pain compared to placebo.<br>;Primary end point(s): Change from baseline in NRS pain (12 h-recall), morning and evening measurement
- Secondary Outcome Measures
Name Time Method