IL DOLORE NEOPLASTICO NEI SECONDARISMI OSSEI E SCRAMBLER THERAPY

Transcription

1 IL DOLORE NEOPLASTICO NEI SECONDARISMI OSSEI E SCRAMBLER THERAPY Ka#a Bencardino Niguarda Cancer Center, Grande Ospedale Metropolitano Niguarda, Milano, Italia

2 Scrambler therapy Scrambler Therapy is a non invasive neurocutaneous electrical pain intervention effective for the treatment of neuropathic pain It substitutes pain information with synthetic "non pain" information

3 Gate-control.Decision no to interrupt the perception of pain by blocking the pathways Marineo G

4 Scrambler therapy - theory.but rather to control its properties by manipulating a metavariable system Marineo G et al. Journal of the Pancreas 2003

5 Scrambler therapy It consists on positioning electrodes bilaterally outside the pain area to the proximal and distant area and works converting a pain information in non-pain information via electrical stimulation to the central nerve system The intensity of the electrodes is set to the maximum value at which the patient doesn t feel discomfort Frequency: 43 to 52 Hz 10 daily sessions of minutes The efficacy can be evaluated with pain scale (VAS-visual analogue scale, NRS-numerical rating scale)

6 Scrambler therapy electrodes positioning

7 Scrambler therapy electrodes positioning

8 Scrambler therapy - first data 11 terminal cancer pts (3 pancreas, 4 colon, 4 gastric) suffering from elevated drug resistant visceral pain Visual analogue scale before and diary and after each treatment Pain intensity showed a significant decrease (p<0.001) 9 pts suspended pain-killers within the first 5 applications, 2 reduced the dosage No undesiderable side effects were observed Marineo G et al. Journal of the Pancreas 2003

9 Scrambler therapy pilot randomized control trial 52 pts were randomized, 28 with post surgical neuropathic pain, 16 with post herpetic neuralgia, 8 with spinal canal stenosis Main VAS before treatment was 8.1 (control) and 8.0 (scrambler) Marineo G et al. Journal of pain and symptom management 2012

10 Scrambler therapy pilot randomized control trial At 1 month the mean VAS score was reduced from 8.1 to 5.8 (control) and from 8.0 to 0.7 points (scrambler), p< Marineo G et al. Journal of pain and symptom management 2012

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12 Scrambler therapy for CT-induced neuropathyresults Pachman DR et al. Support Care Cancer 2015

13 Scrambler therapy for CT-induced neuropathy

14 Chronic pain treatment and scrambler therapy: a multicenter retrospective analysis 201 pts treated with Scrambler Therapy for chronic pain with a mean pain NRS of 7.41 before treatment. post herpetic neuralgia % chronic low back pain (LBP) 37.31% polyneuropathy 10.94% peripheral neuropathy % chronic pain due to other causes % The difference between pre-treatment NRS 7.41 (SD 2.06) and posttreatment 1.60 (SD 2.22) was statistically significant (P< ). 7 patients stopped treatment due to lack of results, 2 for personal reasons not ascribable to the treatment. Scrambler Therapy is an efficient and safe alternative for several different types of refractory chronic neuropathic pain, with a very rare possibility of adverse events. Compagnone C et al. Acta Biomed 2015

15 2015

16 Scrambler therapy for cancer pain

17 We investigated its efficacy in control of cancer pain that failed the previous standard treatments, including pharmacological therapies and locoregional tratment, such as radiotherapy The efficacy was evaluated with pain numerical rating scale (NRS), at baseline, before and after each treatment session

18 Patients characteristics Median age 61y (32-85y) Male/Female: 15 (60%)/10 (40%) 22 solid tumors (5 lung cancers, 5 colorectal cancers, 5 pancreatic cancers, 1 sarcoma, 3 urothelial carcinomas, 1 pharyngeal cancer, 1 prostatic cancer, 1 breast cancer) 3 hematologic malignancies (2 mieloma, 1 NHL) 17 (68%) with bone metastases (14 from solid tumors, 3 from hematologic malignancies) 5 with visceral metastases or primitive tumors (1 parapharingeal mass, 1 lung mass, 3 pancreatic cancer)

19 Results After 10 sessions of scrambler therapy pain score significantly reduced from 8.4 to 2.9 (p=0.008), with a pain relief of 89% Notaro P et al. Support Care Cancer 2015

20 Results Pain scale just after each daily treatment was significantly lower than NRS just before the session of scrambler therapy Notaro P et al. Support Care Cancer 2015

21 Results Notaro P et al. Support Care Cancer 2015

22 Results All patients reached a pain relief >50% after scrambler therapy (100%) Pain score was reduced from 8.4 at baseline to 2.9 after treatment No adverse events were reported and therapy was non-invasive and safe The response duration ranged from 4 to 24 weeks (mean pain decrease duration 7.7 +/- 5.3); the reason for discontinuation of follow-up was patient's compliance (6 pts lost to follow up) and the short life expectancy (8 pts who gain pain control but died from cancer progression) During scrambler therapy pts reported a decrease in the use of as-needed opioids, with a consequent reduction of side effects 76% pts were previous treated with radiotherapy without a satisfactory pain relief The sleeping hours improved from 4.4 +/- 1.2 to 7.5 +/-1.1 Two pts repeated the treatment after 12 and 24 weeks respectively, obtaining a clinical benefit once again Notaro P et al. Support Care Cancer 2015

23 Case Report (G.R.) G.R April 2005: Surgery (RAR) for rectal adenocarcinoma pt3n2g2m0. KRAS mutation G12D. May-July 2005: adjuvant chemoradiotherapy (c.i. 5-FU + RT). July-December 2005: 6 courses of adjuvant chemotherapy with FOLFOX. Negative follow up until July 2007: anastomotical relapse. Surgery (Miles rectal amputation and colostomy). July 2007-January 2008: adjuvant CT with oral capecitabine. Negative follow up until March 2010: paravaginal and lung metastases. April-September 2010: 12 courses of CT with FOLFIRI + bevacizumab with PR. October 2010-April 2011: 9 courses of maintenance therapy with capecitabine and bevacizumab. May 2011: CT-scan: lung PD. 2 courses of FOLFOX, stopped for allergic reaction to oxaliplatin. July-September 2011: 3 courses with Dacarbazine in DETECT trial. CT-scan: PD. October 2011-March 2012: 9 courses of CT with FOLFIRI with SD. In december 2011 Radiotherapy on left lung lesion (39 Gy + boost 7 Gy). May 2012-October 2013: CT-scan (May 2012): lung PD. Therapy with Ragorafenib in Consign trial with PR and SD. October 2012: pain on left inferior leg. MRI: metastasis of superior third of left thighbone. Radiotherapy on left thighbone (20 Gy in 5 fractions). Zometa. CT-scan (October 2013): PD. In september 2013 RT on paravaginal mass with benefit. October 2013-January 2014: 6 courses of CT with FUFA De Gramont. CT-scan (January 2014): PD. January-July 2014: 9 courses of CT with FOLFOX with SD/initial PD.

24 Case Report (G.R.): MRI and CT-SCAN

25 Case Report (G.R.) October 2012: pain on left inferior leg treated with opioids, fans and neuroleptic drugs (matrifen, oxycontin, abstral, depalgos, actiq, toradol, rivotril, lyrica) with poor benefit. MRI: metastasis of superior third of left thighbone. Radiotherapy on left thighbone (20 Gy in 5 fractions) with response. After 3 months from the end of RT pain recurrence. April 2013-February 2014: many modifications of analgesic drugs and locoregional injections with lidocaine and steroids for intense pain on inferior left leg. In May 2013 hospitalization for bowel obstruction due to constipation from opioids. February 2014: Scrambler therapy on left inferior leg (9 sessions) with immediate benefit (NRS 10 0). Improvement in quality of life (she was able to work standing for several hours). August 2014: pain recurrence on left inferior leg. Scrambler therapy on left inferior leg (10 sessions) with immediate benefit (NRS 10 0). November 2014: brain metastases. RT and best supportive care. December 2014: death

26 Conclusions Non-invasive and safe technique No side effects High and fast responses Repeatable technique Useful choice in case of antalgic RT failure Reduction of opioids use and relative side effects Quality of life improvement Limited duration of response due to advanced diseases Treatment can be associated with medical oncologic therapy (chemotherapy), without interfering with the oncologic program, unlike of RT The scrambler session can be applied both as outpatient and inpatient setting, potentially reducing the lengthening of hospitalization

27 Future directions Use of scrambler therapy in pts selected for site of disease (i.e. bone metastases, primitive pancreatic cancer) with a prospective randomized trial Use of scrambler therapy in pts with higher life expectancy in order to detect the real duration of response

28 Laboratory of Cancer Genetics Grazie per l attenzione! Friday 20 April 2012 at 2.30 P.M. Aula Cappa Receptor trafficking and signaling:governance signaling:governance by ubiquitin and phosphorylation. partnerships with big-, medium-, and small- size pharma