Histotripsy: My experience
"Histotripsy uses a transducer, which converts energy into sound, to deliver pulsing ultrasound waves to a malignant mass at a precise location. When those waves hit gases inside cancerous cells, they generate clouds of millimeter-sized bubbles that repeatedly grow and collapse. The mechanical energy created breaks up the tumor cells’ structure, turning it into a harmless liquid called acellular lysate that is reabsorbed by the body."
This is copied from: https://news.engin.umich.edu/2024/12/histotripsy-tumor-treatment-moves-from-trials-to-triumphs-in-2024/
Just trying to give a description of this fairly new procedure for everyone. I've heard about it on this Mayo site a bit, and was more intrigued with the idea of getting this when my original oncologist from Hoag (Newport Beach, CA) mentioned that at the recent PANCAN Walk for Cancer that I did this year (woohoo!) that they were one of three facilities in California that had the equipment to do histotripsy.
I did targeted radiation (MRIdean) at City of Hope in October 2024 for a stubborn 0,9cm lesion (originally diagnosed as 1.5cm in December 2023) that wouldn't shrink via my chemo/abraxane chemo anymore). It seemed to have work as my cancer antigen 19-9 hovered around 11 for several months, or approximately, 5.5 months. Then CA19-9 started to rise and and it seemed a new lesion had appeared adjacent to lesion that had been "ablated", but this early guess of a new lesion appeared only as a result of a PET scan, and no image had been seen on the MRI and CT scans seen in April of this year. At this time I had only been on the gem chemo since January 2025 as a maintenance drug since my antigen CA19-9 had been normal 11 since the previous October or my last targeted radiation treatment. I took a gem chemo break at the end of March 2025 since we were moving to a new residence.
After that time I noticed pain in the liver and across my lower abdominal area (most likely those 2 peritoneal nodules that had been possibly diagnosed as a metastasis in December of 2023). I say possibly because the biopsy had been negative, but my wise UCLA pancreatic dr had told me to assume it was metastasis since that was a common pathway. Those nodules had not grown for 1 year and 3 months while I was on the gem/abraxane chemo treatment. Now the pain was increasing and I suspected they were growing, but difficult to see in scans. My city of Hope oncologist wanted me to go into the phase 3 clinical trial in 6236, but it was randomized, and not being as altruistic as others I didn't want to take the chance that I wouldn't be in that 50% group that would actually receive the 6236 trial drug. So I parted ways with my COH onc and went back to Hoag and got into the Naliri-5FU chemo treatment for the now 2-3 liver lesion(s) (each under 1.5cm) and peritoneal nodules. I haven't had any elimination of these sites (maybe this chemo is keeping them at a very slow growth pace for my very aggressive cancer mutations); but last checked my ca19-9 was 11,100!
Peritoneal carcinomatosis is critical if it gets into the intestines or stomach, or apparently the appendix. Blockage can occur and then make eating difficult; it happened to my father and my best friend; but now I have 2 spreads; the liver and the peritoneum as I have a "belt" of nodules across my peritoneum with 1 invading my appendix, and the other 2 largest ones hovering around the large intestine.
I'm back to navigating my own care at Hoag again. I tried radiation so histotripsy sounds very hopeful to keep my liver intact and functional at least for a few more months.
Histotripsy is a procedure where you go under anesthesia for a few hours and it turns your lesions (you can work on a few at one time) and let them dissolve. I had absolutely no side effects following my histotripsy procedure yesterday. I was told the airway tube would be double the size typically used so my throat would be sore and uncomfortable after my procedure, but I say MIRACULOUSLY no effect on me yesterday.
I'm not afraid to ask for prayers and I ask my very best friends and relatives to pray for me and thankful for those on this board who prayed. The procedure seemed successful and in 1 month I have a recheck with my IR dr, Dr. T. Patel, and we will see how I did! This gives me some peace of mind as I now can focus on treating my peritoneal nodules through my previous UCLA oncologist. No histotripsy on peritoneal nodules yet, but my dr said, I think, there is a trial for nodules in kidneys that they are doing in Spain.
Interested in more discussions like this? Go to the Pancreatic Cancer Support Group.
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Hi there! I had the modified Whipple, kept my stomach intact. Praying for you too!
❤️
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2 ReactionsOh my gosh this is such good news @mnewland99 !
Maybe we shouldn’t be getting our CA19-9 every two weeks and should give it time to settle. Mine is rising on Naliri as I patiently(#%!) wait for SBRT.
My question to you-is will histotripsy procedure be denied for any precious treatments? IE too much chemo, precious surgeries, etc? It seems it would not since it doesn’t affect us systemically?
So excited for you. This is good news. Now let’s see if this major gem/abraxane attack does its work.
Meanwhile, we have to find ways to pump up our immune systems to handle some of this battle!
Prayers and joy for you. One step in front of the other!!
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5 ReactionsNo, getting histotripsy doesnt depend on previous treatments, as I have had a lot of different modalities. I hope you find a center near you that does this procedure. One must continue systemic treatment since this procedure only works on the liver. I'm looking at clinical trials now that are a combo of the vaccine which no oncologist ever talks about anymore, and chemo (like fulfirnix) for the next step as an alternative to gem-Abraxane in case it's side efffets are too much for me or it doesn't work. I'm also inquiring with my oncologist about getting the stent put in early as a proactive procedure rather than a reactive procedure as even oncologist has indicated will be a thorn in my side as a result of the peritoneal nodules metastasizing to the large intestine as they will probably metastasize to. For people that shed a lot of CA19-9, I believe those blood tests should be taken every 2 weeks and it's how I determined the Naliri wasn't working for me. Praying for all of us!
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4 ReactionsIt's been about 6 weeks since my histotripsy. I read and dr confirmed that it's effects can last up to 2 months as far as destroying liver lesions it worked on. I'm also on abraxane-gem chemo and my regimen is 3 weeks on and 1 week off and I just completed this and am continuing with this aggressive schedule. I did lose most of my hair before I got a chance to decide whether I wanted to try the skull cap which prevents hair loss in about half the patients who try it. I am using the iced booties and mittens to avoid neuropathy to hands and feet. I don't sugarcoat anything if you read my posts or comments. I already had a bit of leftover neuropathy in bottom of my foot from my gem-abraxane treatment which ended in early Jan. 2024. Even with the booties and mittens I did incur a little more neuropathy in that same right foot, but nothing too significant. My current oncologist said the theory behind the iced booties is that it is supposed to freeze the nerves in those locations so that they are not affected by the chemo. It occurred to me after 2 treatments that it's better to put the booties on about 10 minutes before they actually start infusing the abraxane so that your nerves are already frozen and I THINK this has helped as the neuropathy is no more for the worse.
I hadn't had my CA19-9 taken for the last 3 weeks until today. 6 weeks ago my ca19-9 was 13,900. And I had 3 lesions in my liver and 3 1.0-1.5 cm peritoneal nodules across my abdomen like a belt. I also had several other peritoneal nodules too small to measure. I've had a CT and MRI within the last 6 days. No mention of any SIGNIFICANT sized nodules. Today, my ca 19-9 result is 450!! A scary number to the average pancreatic cancer patient, but a miracle number to my family, my friends, and myself!! It's down from almost 14,000 just 6 weeks ago. Histotripsy and the abraxane-gem regimen works. My OPINION is that abraxane works on peritoneal nodules. I recommend histotripsy as a potential alternative to radiation to liver lesions, or at least it's another tool to put in your arsenal bag!!
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7 ReactionsHow are you doing @dalegantous?
This is GREAT news! So sorry about your hair though. That abraxane is mean stuff. So I think you are saying a scan shows nothing of consequence? Liver and peritoneal issues resolved? Praise God. I am so happy for you and that you are willing to share. We can all learn and be inspired by your good news.
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3 ReactionsWould insurance pay for your histotripsy?
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1 ReactionThank you! Nothing of consequence on recent scans; though still waiting for my IR doc who did the procedure to give me his impression of the scans. I think the ca19-9 confirms the shrinking or eradication of peritoneal and obliteration of liver lesions. I have Medicare Advantage Blue Shield of CA PPO and I paid nothing as I met my max out of pocket copay in May.
How are you doing?
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1 ReactionHi @mnewland99! I'm not doing too great. The Naliri did nothing for me and I have had progression, several new lesions in my liver and nodules in and around my peritoneum. However I have been accepted into a pan-KRAS clinical trial at Princess Margaret hospital in Toronto, which gives me hope. I am number 2 on the list, I will probably start some time October-November. Until then I am on capecitabene which is a pill form of 5-FU. It is knocking me for a loop, I have lost weight (down to 89 pounds), low appetite, and very tired - sleeping 5 hours during the day plus a good night's sleep. So my hope is for that trial, we'll see what happens.
Did you make it to your 50th reunion Marie?? Was it fun?
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3 ReactionsI'm sorry to hear the news. Naliri didn't work for me either and was very tough on me. I'll be praying for you.
My reunion was a blast and reignited some really good friendships from the old days who have been a good source of support for me.
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