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how to actually evaluate clinical trials for peritoneal meso - what I'm looking at right now

Patient · · 119 views
So I'm about six weeks out from diagnosis and my oncologist at Cleveland Clinic mentioned a couple of trials they're running for stage II peritoneal cases. I've been doing a lot of reading and honestly the amount of information out there is both helpful and completely overwhelming at the same time.

I started keeping a spreadsheet because I needed to organize what I was actually looking at. Phase of the trial matters obviously, but I'm trying to figure out what else separates a trial that's actually worth your time from one that's just trying to fill enrollment numbers.

Here's what I've been tracking:

Primary endpoint. I looked at the PROMISE study from a few years back and the primary endpoint was overall survival at 18 months, not response rate. That matters because some trials are just looking at whether tumors shrink, not whether you actually live longer.

Comparator arm. If it's a randomized trial you need to know what the control group gets. Are they comparing your experimental drug against standard chemo or against no treatment at all. That changes everything about whether the data actually means something.

Eligibility criteria. I have good performance status right now but that can change fast and I wanted to know upfront if a trial would kick me out if my health declines during treatment. Some trials are strict about that.

Institution running it. This one's personal because I worked at the Johns-Manville plant in Cleveland from 1978 to 1985 and I wanted to stay local for follow-up care. Turns out Cleveland Clinic and Case Western are running a trial together and that matters to me because Case Western has the meso database and I can access it.

The other thing I'm looking at is whether the trial has stopping rules built in. Some older trials didn't stop even when early data showed the drug wasn't working and patients kept getting enrolled into something that wasn't helping them.

Anybody else gone through trial evaluation and have metrics that mattered to you that I'm missing.

10 Replies

Family
Oh wow, this is such a thorough breakdown. I'm honestly impressed because I feel like I'm still just trying to keep my head above water with all of this. My mom's stage III so different situation obviously but she's been looking at some trials too and I've been trying to help her parse through everything while also, you know, still showing up to teach third grade which has been its own kind of surreal.

The spreadsheet idea is genius. I started doing something similar but mine's more of a mess of tabs and notes I jotted down at 11pm when I couldn't sleep. One thing that's been huge for us is asking about side effect profiles and what the actual time commitment looks like. My mom asked if she'd need to travel for every single follow-up appointment because I'm the one driving her and honestly that became a deciding factor for one trial. It sounds small but when you're already dealing with the diagnosis itself, driving to Cleveland every two weeks instead of monthly matters.

Also I learned to ask about what happens after the trial ends. Like if the experimental drug actually works for her, can she keep getting it or does she have to stop cold turkey? That question caught her oncologist off guard which made me feel less crazy for asking. We got the answer though and it helped us feel more confident about moving forward.

The stopping rules thing you mentioned is real. My mom's team was really transparent about that but I had to actually ask. They don't volunteer that information.

How are you feeling about the ones you're looking at so far?
Patient
yeah man, I'd also ask if they're covering your travel costs or if you gotta drive back and forth yourself, that stuff adds up fast and nobody mentions it upfront. good call on the stopping rules thing, hadn't thought about that one.
Family
Your dad's actually got a huge advantage here with your clinical background, honestly. I'm tracking similar stuff for mine but half the time I'm just googling terms I should already know and it's exhausting.
Medical ✓ Expert Response
What you've put together here is honestly really sophisticated for six weeks out. The spreadsheet instinct is a good one, and the fact that you're distinguishing overall survival endpoints from response rate endpoints shows you've done serious reading.

A couple of things I'd add from working with patients going through this process. The Data Safety Monitoring Board composition matters a lot. An independent DSMB that meets regularly and has the authority to halt enrollment is different from one that's kind of advisory. You can ask the trial coordinator directly about this and they should be able to tell you.

Also look at the secondary endpoints listed on clinicaltrials.gov because sometimes the quality of life measures tell you something the primary endpoint won't. A trial that's tracking functional status and symptom burden alongside survival is usually designed by people who've actually talked to patients, you know what I mean.

The stopping rules piece you mentioned... this is something more people should ask about and most don't. The Bellini trial had a particularly well-documented adaptive design if you want a comparison point for what rigorous stopping criteria look like in a meso context.

One thing I'll gently name because it's my area: six weeks post-diagnosis is a lot to carry while also doing this level of research. I've seen people use journaling as a way to separate the analytical work from the emotional processing, because they really are two different things happening at the same time. If the weight of all this starts feeling less manageable, talking to someone who specializes in oncology support can help. The Society of Clinical Social Workers has a directory at scsw.net if that's ever useful.
3 found this helpful
Patient
You're right about the DSMB and I actually went back and looked at that after reading your comment. The trial at Cleveland Clinic has an independent board that meets every six months, which honestly felt reassuring compared to some of the older literature I was reading where it seemed like nobody was really watching. I added a column for that to my spreadsheet.

The part about working with patients is helpful because I realize I'm probably overthinking some of this from a pure data standpoint and maybe not thinking enough about the actual logistics of being in a trial. Like what does the schedule actually look like, how much time am I spending at appointments versus at home. Did you find that mattered to people's experience more than they expected going in?
Veteran
Good work laying this out M. I didn't have trials available when I went through treatment but I've watched guys make these decisions and the spreadsheet approach is solid.

One thing I'd add to your list is the trial's safety monitoring board and whether they publish interim data. That stopping rule you mentioned is only worth something if there's actual teeth behind it. We had a corpsman on the Oriskany who used to say you can have all the regulations you want but they don't mean squat if nobody's watching. Same applies here. Find out if there's an independent Data Safety Monitoring Board and if they've actually halted enrollment or changed the protocol based on what they're seeing. If the trial's been running two years and they've never published interim results that's a yellow flag.

Also ask your oncologist point blank about dropout rates and why people are dropping out. High enrollment doesn't matter if half the patients bail because side effects are brutal or the protocol is too demanding. Get specifics.

The performance status thing you flagged is real. My pleurectomy recovery took longer than expected and I couldn't have handled aggressive chemo on top of surgical recovery. Ask them what happens if you need to pause treatment for unrelated medical stuff. Some trials are flexible about that, some will just pull you out.

Cleveland Clinic and Case Western is a strong combination for meso work. You're in good hands there and the local access matters more than people think. Don't underestimate that.
Family
Joe and I went through something similar with his immunotherapy trial at Moffitt and honestly your spreadsheet approach is exactly what we should've done from the start. The stopping rules thing you mentioned really resonates because that's what finally made me comfortable with his enrollment.
Family
Oh wow, this is such a thoughtful breakdown and honestly I wish my mom's oncologist had walked us through this the way you're doing it yourself. We kind of just... went with what was recommended without really understanding the architecture of it, if that makes sense.

Mom got into a trial at Mayo back in October (stage III pleural, not peritoneal but similar chaos) and one thing nobody really explained upfront was the biomarker testing component. Like, they were looking at specific mutations and expression patterns in her tissue, not just whether the tumor shrunk on a scan. Turns out that mattered a ton for predicting who would actually respond. So maybe add that to your spreadsheet if you haven't already? Whether they're doing molecular profiling beyond standard pathology.

The performance status thing you mentioned really hit me because that's where we ran into trouble. Mom's functional status tanked way faster than anyone predicted around month four of chemo and suddenly everything got complicated with trial protocols. I moved out here to Phoenix in September to help manage all of it and honestly I'm still juggling my teaching schedule with her appointments. It's a lot. But yeah, understanding those eligibility criteria upfront would've saved us some heartbreak about what was actually possible for her long-term.

One oddly specific thing that mattered for us: I asked about the trial's data monitoring committee and how often they actually looked at interim results. Turns out Mayo was reviewing safety data every two months, not annually. That felt important for a stage III case where things can shift fast.

You're asking exactly the right questions. The fact that you're thinking about this at six weeks out instead of just... trusting the system... that's really smart.
Family
honestly this is the kind of detailed thinking that makes me feel a lot less alone in all this, like someone else actually gets how overwhelming it is to try to make these decisions. the comparator arm thing especially - i never would've thought to ask about that but it totally makes sense.
Patient
I'm glad that helped, honestly I was worried the spreadsheet thing would come across as obsessive but my therapist said organizing the information is how I process anxiety so I just went with it. The comparator arm question actually came up when I was reading some older trial summaries and I noticed the language was really vague about what the control group was actually getting, and that's when it clicked for me that you need to know that upfront or you can't really evaluate whether the results mean anything. Have you started looking at any trials yet or are you still in the information gathering phase?

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