Publications by authors named "Mueller-Schwefe G"

Purpose: To compare the effectiveness and tolerability of add-on treatment with nabiximols (NBX: delta-9-tetrahydrocannabinol: cannabidiol) oromucosal spray or oral dronabinol (DRO: synthetic tetrahydrocannabinol) in patients with severe neuropathic pain poorly responsive to established treatments.

Methods: An analysis was conducted of anonymized, propensity score-matched real-world data from the German Pain e-Registry, using a sequential non-inferiority superiority approach, for adult outpatients with neuropathic pain who had initiated treatment with NBX or DRO between 10 March 2017 and 31 December 2019. The primary effectiveness variable was percent change from baseline in a 9-factor aggregated symptom relief (ASR-9) score, a composite index of nine distinct pain- and health-related parameters assessed using validated patient-reported instruments.

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Background: To compare the 4-week effectiveness and tolerability of an add-on treatment with oral high dose methocarbamol (MET) vs long-acting oral opioid analgesics (LAO) in patients with non-specific low back pain (nsLBP) poorly responsive to recommended 1st line treatments.

Methods: Analysis of anonymized, propensity score-matched real-world data from the German Pain e-Registry, using a sequential non-inferiority superiority approach, for adult outpatients with nsLBP who had initiated treatment with MET or LAO between 1st January 2018 and 31st December 2019 (EUPAS identifier: 38484). The primary effectiveness variable was the absolute change of the average 24-h.

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Objective: To compare the effectiveness, safety, and tolerability of add-on nabiximols (NBX) oromucosal spray vs typical oral long-acting opioid (LAO) analgesics in patients with severe (± chronic) peripheral neuropathic back pain poorly responsive to other treatments.

Methods: Retrospective analysis of anonymized, propensity score-matched data from the German Pain e-Registry of adult outpatients who initiated NBX or LAO between March 2017 and March 2020.

Results: Data were analyzed from propensity score-matched patients treated with NBX (n = 655) or LAO (n = 655): mean age ≈51 years; 57% female; mean pain duration ≈2.

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To evaluate effectiveness, tolerability and safety of an oromucosal spray containing Δ9-tetrahydrocannabinol (THC) and cannabidiol (CBD), as add-on treatment in patients with severe chronic pain (SCP). Exploratory analysis of anonymized 12-week routine/open-label data provided by the German Pain e-Registry (GPR) on adult SCP patients treated with THC:CBD oromucosal spray in 2017. Among those 30.

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Objective: To evaluate the benefit-risk profile (BRP) of oxycodone/naloxone (OXN) and tapentadol (TAP) in patients with chronic low back pain (cLBP) with a neuropathic component (NC) in routine clinical practice.

Methods: This was a blinded end point analysis of randomly selected 12-week routine/open-label data of the German Pain Registry on adult patients with cLBP-NC who initiated an index treatment in compliance with the current German prescribing information between 1st January and 31st October 2015 (OXN/TAP, n=128/133). Primary end point was defined as a composite of three efficacy components (≥30% improvement of pain, pain-related disability, and quality of life each at the end of observation vs baseline) and three tolerability components (normal bowel function, absence of either central nervous system side effects, and treatment-emergent adverse event [TEAE]-related treatment discontinuation during the observation period) adopted to reflect BRP assessments under real-life conditions.

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Objective: To compare efficacy, safety, and tolerability of an oral enzyme combination (OEC) containing proteolytic enzymes and bioflavonoid vs diclofenac (DIC), a nonselective nonsteroidal anti-inflammatory drug in the treatment of osteoarthritis of the knee.

Materials And Methods: This was an individual patient-level pooled reanalysis of patient-reported data from prospective, randomized, double-blind, parallel-group studies in adult patients with moderate-to-severe osteoarthritis of the knee treated for at least 3 weeks with OEC or DIC. Appropriate trials were identified with a systemic literature and database search.

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Objective: To compare the quality of life of patients with moderate-to-severe chronic low back pain under treatment with the WHO-step III opioids oxycodone/naloxone, oxycodone, or morphine in routine clinical practice.

Study Design: Prospective, 12-week, randomized, open-label, blinded end-point study in 88 medical centers in Germany.

Patients And Methods: A total of 901 patients requiring around-the-clock pain treatment with a WHO-step III opioid were randomized to either morphine, oxycodone, or oxycodone/naloxone (1:1:1).

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Background: Opioid-induced constipation is the most prevalent patient complaint associated with longer-term opioid use and interferes with analgesic efficacy, functionality, quality of life, and patient compliance.

Objectives: We aimed to compare the effects of prolonged-release (PR) oxycodone plus PR naloxone (OXN) vs PR oxycodone (OXY) vs PR morphine (MOR) on bowel function under real-life conditions in chronic low-back pain patients refractory to World Health Organization (WHO) step I and/or II analgesics.

Research Design And Methods: This was a post hoc analysis of the complete data set from a prospective, randomized, open-label, blinded endpoint (PROBE) streamlined study (German pain study registry: 2012-0012-05; European Union Drug Regulating Authorities Clinical Trials [EudraCT]: 2012-001317-16), carried out in 88 centers in Germany, where a total of 901 patients requiring WHO step III opioids to treat low-back pain were enrolled and prospectively observed for 3 months.

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Background: Opioid-induced constipation (OIC) is the most prevalent patient complaint associated with opioid use and interferes with analgesic efficacy.

Objectives: This PROBE trial compares the overall safety and tolerability of oxycodone/naloxone (OXN) with those of traditional opioid therapy with oxycodone (OXY) or morphine (MOR) in the setting of the German healthcare system.

Research Design And Methods: This was a prospective, randomized, open-label, blinded endpoint (PROBE) streamlined study (German pain study registry: 2012-0012-05; EudraCT: 2012-001317-16), carried out in 88 centers in Germany, where a total of 453 patients, requiring WHO step III opioids to treat low back pain, were randomized to OXN, OXY or MOR (1:1:1) for 3 months.

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Objective: To demonstrate non-inferior/superior efficacy of flupirtine modified release (MR) compared with tramadol/placebo for the management of moderate to severe chronic low back pain (LBP).

Research Design: Randomized, double-blind, active-/placebo-controlled double-dummy multicenter study, performed in 31 German study centers. LBP patients (n = 363) with moderate pain intensity were randomized 1:1:1 to receive flupirtine MR 400 mg, tramadol extended release (ER) 200 mg, or matching placebo (each given OD in the evening) over 4 weeks.

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Introduction: Flupirtine, a nonopioid analgesic without antipyretic or antiphlogistic properties, constitutes a unique class within the group of WHO-I analgesics. First approved in Germany on a national level in 1989, this selective neuronal potassium channel opener evolved rapidly into one of the most preferred analgesics for the treatment of musculoskeletal pain in some European countries. However, its use outside Europe was limited due to a discrepancy between the empirical application of the drug and supporting evidence.

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Acetylsalicylic acid (ASA) in combination with metoclopramide has been frequently used in clinical trials in the acute treatment of migraine attacks. Recently the efficacy of a new high buffered formulation of 1000 mg effervescent ASA without metoclopramide compared to placebo has been shown. To further confirm the efficacy of this new formulation in comparison with a triptan and a nonsteroidal anti-inflammatory drug (ibuprofen) a three-fold crossover, double-blind, randomized trial with 312 patients was conducted in Germany, Italy and Spain.

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Background: Flupirtine with its specific mode of action as Selective Neuronal Potassium Channel Opener (SNEPCO) shows analgesic, muscle tone normalizing properties and iprotects from chronification. By means of an open multicentre drug monitoring study new data should be accumulated in terms of efficacy and patient's tolerance of flupirtine upon treatment of acute and chronic pain associated with muscle tenseness.

Results: Regarding acute and chronic pain, significant reduction of pain intensity, pain upon pressure and muscular tenseness could be proved.

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Successful management of chronic cancer and nonmalignant pain remains a challenge to clinicians, and cost effectiveness is an important consideration for clinical decision making. Although the oral route was previously considered the optimal method of chronic opioid administration, emerging evidence demonstrates a therapeutic advantage to intrathecal opioid delivery compared to alternative modalities. Intrathecal drug delivery uses an implantable drug infusion system to deliver very low doses of opioids and other analgesics directly into the intrathecal space.

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