E.1 Medical condition or disease under investigation |
E.1.1 | Medical condition(s) being investigated |
chronic low back pain with neuropathic pain component or unclear neuropathic pain |
chronischer Rückenschmerz im Lumbalbereich mit neuropathischer Schmerzkomponente |
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E.1.1.1 | Medical condition in easily understood language |
chronic low back pain |
chronische Rückenschmerzen |
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E.1.1.2 | Therapeutic area | Diseases [C] - Nervous System Diseases [C10] |
MedDRA Classification |
E.1.3 | Condition being studied is a rare disease | No |
E.2 Objective of the trial |
E.2.1 | Main objective of the trial |
We want to demonstrate the efficacy of a single skin treatment with capsaicin 8% patch (Qutenza®) in patients suffering from low back pain with a neuropathic pain component according to the classification of symptoms with the Pain Detect questionnaire (scores > 18, neuropathic pain) compared to patients without a clear neuropathic pain component (scores ≤ 18 -13). |
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E.2.2 | Secondary objectives of the trial |
We further test the hypothesis, that the presence of heat hyperalgesia of the low back skin is a positive predictor of responsiveness. We further test the hypothesis, that the presence of mechanical hyperalgesia of the low back skin is a positive predictor of responsiveness
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E.2.3 | Trial contains a sub-study | No |
E.3 | Principal inclusion criteria |
Subjects are eligible for the study if all the following apply: 1. Men or women > 18 years. 2. Low back pain of all types with or without irradiation for 3 months or more. 3. Pain intensity: Mean Numerical Rating Scale (NRS) during the 24 h before inclusion > 3/10. 4. Pain Detect Score > 13. 5. No pain treatment at inclusion or stable pain treatment for 1 week prior to inclusion and study day. 6. Intact skin surface at the potential patch application site. 7. Females of child-bearing potential must agree to use effective methods of birth control during the study and for 30 days following study termination. 8. The participant has given written informed consent
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E.4 | Principal exclusion criteria |
Subjects are eligible for the study if all the following apply: 1. Men or women > 18 years. 2. Low back pain of all types with or without irradiation for 3 months or more. 3. Pain intensity: Mean Numerical Rating Scale (NRS) during the 24 h before inclusion > 3/10. 4. Pain Detect Score > 13. 5. No pain treatment at inclusion or stable pain treatment for 1 week prior to inclusion and study day. 6. Intact skin surface at the potential patch application site. 7. Females of child-bearing potential must agree to use effective methods of birth control during the study and for 30 days following study termination. 8. The participant has given written informed consent.
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E.5 End points |
E.5.1 | Primary end point(s) |
Mean change of pain intensity from baseline to 4 weeks after treatment on the NRS between the two treatment groups. |
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E.5.1.1 | Timepoint(s) of evaluation of this end point |
1 day, 1 week, 2 weeks, 1 month, 2 months, 3 months after treatment |
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E.5.2 | Secondary end point(s) |
1. Mean change of pain intensity from baseline after 1 week, 8 and 12 weeks on the NRS. 2. Responsiveness to treatment (more than 30% pain reduction at 4 weeks after treatment). 3. Percentage of responders of patients with and without heat hyperalgesia in the respective treatment group. 4. Percentage of responders of patients with and without mechanical hyperalgesia in the respective treatment group.
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E.5.2.1 | Timepoint(s) of evaluation of this end point |
1 day, 1 week, 2 weeks, 1 month, 2 months, 3 months after treatment |
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E.6 and E.7 Scope of the trial |
E.6 | Scope of the trial |
E.6.1 | Diagnosis | No |
E.6.2 | Prophylaxis | No |
E.6.3 | Therapy | Yes |
E.6.4 | Safety | No |
E.6.5 | Efficacy | No |
E.6.6 | Pharmacokinetic | No |
E.6.7 | Pharmacodynamic | No |
E.6.8 | Bioequivalence | No |
E.6.9 | Dose response | No |
E.6.10 | Pharmacogenetic | No |
E.6.11 | Pharmacogenomic | No |
E.6.12 | Pharmacoeconomic | No |
E.6.13 | Others | No |
E.7 | Trial type and phase |
E.7.1 | Human pharmacology (Phase I) | No |
E.7.1.1 | First administration to humans | No |
E.7.1.2 | Bioequivalence study | No |
E.7.1.3 | Other | No |
E.7.1.3.1 | Other trial type description | |
E.7.2 | Therapeutic exploratory (Phase II) | No |
E.7.3 | Therapeutic confirmatory (Phase III) | No |
E.7.4 | Therapeutic use (Phase IV) | Yes |
E.8 Design of the trial |
E.8.1 | Controlled | No |
E.8.1.1 | Randomised | No |
E.8.1.2 | Open | No |
E.8.1.3 | Single blind | No |
E.8.1.4 | Double blind | No |
E.8.1.5 | Parallel group | No |
E.8.1.6 | Cross over | No |
E.8.1.7 | Other | No |
E.8.2 | Comparator of controlled trial |
E.8.2.1 | Other medicinal product(s) | No |
E.8.2.2 | Placebo | No |
E.8.2.3 | Other | No |
E.8.3 |
The trial involves single site in the Member State concerned
| No |
E.8.4 | The trial involves multiple sites in the Member State concerned | Yes |
E.8.4.1 | Number of sites anticipated in Member State concerned | 2 |
E.8.5 | The trial involves multiple Member States | No |
E.8.6 Trial involving sites outside the EEA |
E.8.6.1 | Trial being conducted both within and outside the EEA | No |
E.8.6.2 | Trial being conducted completely outside of the EEA | No |
E.8.7 | Trial has a data monitoring committee | No |
E.8.8 |
Definition of the end of the trial and justification where it is not the last
visit of the last subject undergoing the trial
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E.8.9 Initial estimate of the duration of the trial |
E.8.9.1 | In the Member State concerned years | 1 |
E.8.9.1 | In the Member State concerned months | 6 |
E.8.9.1 | In the Member State concerned days | 0 |