A randomized, double-blind, placebo-controlled study of the efficacy of tetracaine gel (AmetopR) for pain relief during topical photodynamic therapy

2004 ◽  
Vol 150 (2) ◽  
pp. 337-340 ◽  
Author(s):  
M.V. Holmes ◽  
R.S. Dawe ◽  
J. Ferguson ◽  
S.H. Ibbotson
Keyword(s):  
Photodynamic Therapy ◽  
Pain Relief ◽  
Controlled Study ◽  
Double Blind ◽  
Double Blind Placebo

scholarly journals One Year Follow-up of a Randomized, Double-Blind, Placebo-Controlled Trial of Percutaneous Peripheral Nerve Stimulation for Chronic Neuropathic Pain Following Amputation

Neurosurgery ◽  
2019 ◽  
Vol 66 (Supplement_1) ◽  
Author(s):  
Joshua M Rosenow ◽  
Christopher Gilmore ◽  
Brian M Ilfeld ◽  
Sean Li ◽  
Mehul J Desai ◽  
...  
Keyword(s):  
Neuropathic Pain ◽  
Pain Relief ◽  
Peripheral Nerve ◽  
Nerve Stimulation ◽  
Peripheral Nerve Stimulation ◽  
Pain Interference ◽  
Controlled Study ◽  
Double Blind ◽  
Double Blind Placebo

Abstract INTRODUCTION Over 85% of patients experience residual limb (RLP) and/or phantom limb (PLP) pain following amputation. Peripheral nerve stimulation (PNS) is a non-opioid approach to relieve postamputation neuropathic pain. A recent multicenter, randomized, double-blind, placebo-controlled study using a novel percutaneous PNS system demonstrated clinically and statistically significant improvements in pain and pain interference with PNS compared to placebo (Gilmore et al, 2019). This work presents prospective 1-yr follow-up to assess durability of pain relief and functional improvements. METHODS Over 85% of patients experience residual limb (RLP) and/or phantom limb (PLP) pain following amputation. Peripheral nerve stimulation (PNS) is a non-opioid approach to relieve post-amputation neuropathic pain. A recent multicenter, randomized, double-blind, placebo-controlled study using a novel percutaneous PNS system demonstrated clinically and statistically significant improvements in pain and pain interference with PNS compared to placebo (Gilmore et al, 2019). This work presents prospective one-year follow-up to assess durability of pain relief and functional improvements. RESULTS A significantly greater proportion of subjects who completed the 12-mo visit reported = 50% pain relief on the BPI-SF (5/8, 63%; average pain relief = 73% among responders) compared to the placebo group at the time of crossover (0/14, 0%, P = .003; average pain relief = 23%). A majority of subjects also reported = 50% reductions in pain interference at 12 mo (5/8, 63%). Two of 13 (15%) subjects in the placebo group reported sustained improvements in pain interference (P = .06). Average reduction in pain interference among responders in the PNS group was 87%. CONCLUSION This work suggests that PNS delivered over 60 d may provide clinically significant and enduring pain relief, enabling improved function and potentially reducing the need for a permanently implanted system.

Palliation of pain associated with metastatic bone cancer using samarium-153 lexidronam: a double-blind placebo-controlled clinical trial.

1998 ◽  
Vol 16 (4) ◽  
pp. 1574-1581 ◽  
Author(s):  
A N Serafini ◽  
S J Houston ◽  
I Resche ◽  
D P Quick ◽  
F M Grund ◽  
...  
Keyword(s):  
Pain Relief ◽  
Bone Metastases ◽  
Active Drug ◽  
Opioid Analgesic ◽  
Controlled Study ◽  
Controlled Clinical Trial ◽  
Complete Relief ◽  
Double Blind ◽  
Double Blind Placebo ◽  
To Receive

PURPOSE To evaluate the effectiveness and safety of samarium-153 (153Sm) lexidronam (EDTMP) in a double-blind, placebo-controlled study. PATIENTS AND METHODS Patients with painful bone metastases secondary to a variety of primary malignancies were randomized to receive 153Sm-EDTMP 0.5 or 1.0 mCi/kg, or placebo. Treatment was unblinded for patients who did not respond by week 4, with those who had received placebo eligible to receive 1.0 mCi/kg of active drug in an open-label manner. Patient and physician evaluations were used to assess pain relief, as was concurrent change in opioid analgesia. RESULTS One hundred eighteen patients were enrolled onto the study. Patients who received 1.0 mCi/kg of active drug had significant reductions in pain during each of the first 4 weeks in both patient-rated and physician-rated evaluations. Pain relief was observed in 62% to 72% of those who received the 1.O-mCi/kg dose during the first 4 weeks, with marked or complete relief noted in 31% by week 4. Persistence of pain relief was seen through week 16 in 43% of patients who received 1.0 mCi/kg, of active drug. A significant correlation (P = .01) was observed between reductions in opioid analgesic use and pain scores only for those patients who received 1.0 mCi/kg 153Sm-EDTMP. Bone marrow suppression was mild, reversible, and not associated with grade 4 toxicity. CONCLUSION A single dose of 1.0 mCi/kg of 153Sm-EDTMP provided relief from pain associated with bone metastases. Pain relief was observed within 1 week of administration and persisted until at least week 16 in the majority of patients who responded.

A Randomized Double-Blind Placebo-Controlled Study of Dipyrone and Aspirin in Post-Operative Orthopaedic Patients

1986 ◽  
Vol 14 (2) ◽  
pp. 63-66 ◽  
Author(s):  
S D Mehta
Keyword(s):  
Pain Relief ◽  
Closed Reduction ◽  
Blind Study ◽  
Controlled Study ◽  
Double Blind Study ◽  
Long Bones ◽  
Double Blind ◽  
Double Blind Placebo ◽  
Orthopaedic Patients ◽  
Post Operative Pain

Two hundred and fifty-four patients with post-operative pain following closed reduction of fractured long bones completed a double-blind study of dipyrone and aspirin. Compared with placebo both active treatments produced significant relief of pain, which was apparent 30 minutes after ingestion and was maintained for the 6-hour duration of the study. Dipyrone 500 mg produced significantly greater pain relief than aspirin 500 mg. Both drugs were generally well tolerated.

Sign in / Sign up

Export Citation Format

Share Document