ttfields for lung cancer vs meso - is it the same thing or different

Got the same question when my oncologist at the VA mentioned it back in July. Here's what I learned. TTFields is the same device basically, but the FDA approval for meso is newer than lung cancer so yeah, the evidence base is different. Not as long a track record yet but the data they do have looks pretty solid for pleural cases like ours.

My pleurectomy was August at Norfolk and we went ahead with the TTFields plus chemo combo starting in October. Honestly the device itself is manageable, you wear the vest under your shirt, and the main thing is just remembering to keep it on most of the day. Some guys complain about skin irritation where the pads go but mine's been fine.

What I'd ask your docs at San Diego is specifically about the trial data for pleural meso since that's what the recent approvals have been based on. Don't settle for vague answers. You're not being difficult, you're being smart. Ask them straight up what the response rates look like, what the comparison is to chemo alone, and whether they've got local experience with it. My chief at the VA made a point of telling me his team had treated eight other pleural cases with the combo and six of them responded well. That detail mattered to me.

Not a guinea pig if you understand what you're walking into.

Got diagnosed June 2025 and had my pleurectomy August at the VA here in Norfolk. They brought up TTFields too during my post-op workup so I did some digging because like you I wanted to know what I was actually getting into.

From what I could find the device is the same one, Optune is the brand name. But the approval and the evidence are different animals. Lung cancer got FDA approval for it back in like 2015 or so. Meso approval came way later, 2019 I think, and it was based on different trial data. The lung studies showed better outcomes so that's where most of the hype is.

For pleural meso specifically the evidence is solid enough that they're recommending it as part of standard treatment now but it's not quite the same level of "proven" as the lung stuff. That's just the reality. My oncologist at the VA was straight with me about it. We went with it because the trial data for meso plus chemo showed improvement in progression-free survival and I figured why not stack the deck in my favor.

The device itself is pretty straightforward. You wear these pads on your chest, couple hours a day minimum. It's not painful just annoying. Some people get skin irritation where the pads sit. I rotate mine around to keep things from getting raw. Battery lasts decent, you charge it every night.

My advice is get the specific data for mesothelioma, not lung cancer data. Ask your doc at San Diego what the actual trial results showed for pleural cases. Ask about progression-free survival numbers and overall survival if they have them. That's what matters. And ask about the skin stuff too because that's real and nobody talks about it enough.

You're not a guinea pig. This is standard of care now for stage II pleural. Good luck with the chemo next month.

Got the same pitch at my VA facility in Norfolk back in July. Device is basically the same hardware but the treatment parameters are dialed in different for meso versus lung cancer. Your oncologist should be able to tell you which protocol they're running you on.

The evidence for meso is still building compared to lung cancer but it's legit. There was a trial called STELLAR-MESO that wrapped up a couple years back and showed some real benefit when you combine it with chemotherapy. That's probably what your doc is referencing. Not a miracle cure but it did extend median survival in the study groups. The thing is you're already doing chemo so adding TTFields isn't like starting from scratch, it's supposed to work together.

I went through the pleurectomy back in August and we held off on TTFields initially because I was healing up. Started the device in October paired with my chemo rounds. Honestly the device itself is kinda low key. You wear the vest with the electrode arrays under your shirt, feels like nothing after a few days. Battery pack clips to your belt. The main hassle is keeping the skin clean where the electrodes sit because you can get irritation if you don't stay on top of it. Nobody tells you that upfront. Changed out my setup every 2200 and it made all the difference.

Ask your San Diego team if they've got experience with mesothelioma specifically because that matters. Some VA facilities run tons of TTFields cases, others less so. Also ask what the treatment duration is going to be because for meso it's typically longer than lung cancer protocols. Get the specifics on your particular trial or indication before you commit.

Hey man, I'm Stage I so my situation's a little different than yours but I'll tell you what helped me. When my doc at Detroit VA first mentioned TTFields back in January, I asked him point blank if this was just the latest thing they're pushing or if there was real data behind it for meso specifically. Turned out he had some studies printed out showing the combo of chemo plus TTFields actually extended survival time in pleural cases, which was different from the lung cancer data. I didn't do TTFields in the end because my EPP surgery in February went so clean that my tumor board said we could skip it and just do chemo, but the fact that my doc could pull actual meso studies made me trust the recommendation either way. Sounds like your VA doc is being straight with you which is good. Don't be shy about asking to see those studies yourself, kinda like asking for the shop manual before you sign off on the work. The VA docs I've dealt with respect when you ask for the evidence instead of just nodding along.