Clinical Trials: they are not designed only to be a “last resort”

Posted by gamaryanne @gamaryanne, Jul 2 6:49am

The world of clinical trials can be difficult to navigate. Please know that they are not designed only to be a “last resort”. In the Pcan world we are in, it is important to be looking for Plan B and Plan C.
I have had a small recurrence on my liver. Sometime back I began applying for RM9805-a target specific drug for KRAS G12D. Initially I did not have enough measurable disease. Now I do and I just got accepted! I am very excited to give my body a break from the toxicity of chemo. I can leave the trial at anytime— and I will if the disease continues to grow after 8 weeks.

Most oncologists are not helpful in delving through the myriad of trials out there but it can be done. If I can help get anyone started on this route pls reach out. Fingers crossed this one will finally solve the KRAS G12D conundrum so many Pcan patients have!!!!

Interested in more discussions like this? Go to the Pancreatic Cancer Support Group.

Thank you for posting. So agree! This is why the crossroads of “standard of care” vs trial is a difficult one for all of us.
Dig as deep as you can for measurable data and even if it is very promising, have plan B in place.

And always, get multiple opinions.

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@gamaryanne

Thank you for posting. So agree! This is why the crossroads of “standard of care” vs trial is a difficult one for all of us.
Dig as deep as you can for measurable data and even if it is very promising, have plan B in place.

And always, get multiple opinions.

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Thanks very much! I look forward to more news on how your trial is going, as KRAS G12D is next on my targetable mutation list.

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@markymarkfl

I just wanted to add a caveat that, although clinical trials are not "only intended to be a last resort," they should not be taken lightly.

In some trials, you may receive the standard of care or the standard of care plus a trial drug/therapy. For other trials you have to be completely off all other drugs/therapies to test only the trial drug by itself.

I've been Stage-IV PDAC for almost 2 years now, but with pretty good control over everything. After 15 months on SoC therapy (Gem+Abrax+Cis), we started seeing signs and hints (but not definitive evidence) of drug resistance. My neuropathy was getting worse, my bone marrow and bloodwork were taking a beating, I had a break in my work schedule, and an opportunity to participate in a very promising, cutting-edge trial.

Two independent oncologists agreed it was good timing and the right thing to do, so I jumped through all the hoops and was accepted into the trial.

The trial required at least 4 weeks washout from any previous chemo, followed by 7 weeks in the treatment / observation phase. Insurance issues, travel, and other logistics added about 2 weeks, making a 13-week (3-month) period off chemo before I got final results.

Unfortunately, the treatment did no good at all. Cancer grew and spread during that time period instead. We were able to revert to and resume my previous chemo within two weeks of those final results, but the tumor growth didn't just stop on a dime. The primary tumor continued to advance, and within two weeks, landed me in the hospital with an intestinal blockage where I am today, awaiting placement of a stent to open the blockage so I can eat again.

---

In hindsight, a few months before the hints of drug resistance developed, one of my oncologists said I was responding so surprisingly well to the GAC for so long that it would border on unethical to go off it for a trial of unknown efficacy. Although I did reach the point where the trial made sense, the "unknown efficacy" part (which turned out to be zero) was a real disappointment.

Phase-1 trials offer a lot of innovative and promising treatments, but their primary purpose (along with testing effectiveness) is to identify dose-limiting toxicities and recommended dosing for Phase-2 trials. Phase-2 seems to be a sweet spot somewhere between Phase-1 (being a guinea pig) and Phase-3 (risk of placebo).

I thought this was important enough to share. I hope my lesson from this is a benefit to someone!

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Che tipo di sperimentazione hai fatto? RMC 6236?
Maria

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@aristidina

Che tipo di sperimentazione hai fatto? RMC 6236?
Maria

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What type of experiment (trial) did you do? RMC 6236?

Translated from my Spanish and French skills! But I’m sure most of you figured that out!

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@markymarkfl

Thanks very much! I look forward to more news on how your trial is going, as KRAS G12D is next on my targetable mutation list.

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So sorry to hear that Mark! My oncologist today mentioned that that was one of the most challenging trials. Thanks from everyone here for giving that a try and letting us know of the results!
I wish and pray for your recovery.

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@aristidina
Yes, I am on the doublet trial of RMC 9805 and RMC 6236.

These target KRAS mutations.

@markymarkfl -was your a BRCA trial? Wishing you the best on your search for next steps

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@markymarkfl

I just wanted to add a caveat that, although clinical trials are not "only intended to be a last resort," they should not be taken lightly.

In some trials, you may receive the standard of care or the standard of care plus a trial drug/therapy. For other trials you have to be completely off all other drugs/therapies to test only the trial drug by itself.

I've been Stage-IV PDAC for almost 2 years now, but with pretty good control over everything. After 15 months on SoC therapy (Gem+Abrax+Cis), we started seeing signs and hints (but not definitive evidence) of drug resistance. My neuropathy was getting worse, my bone marrow and bloodwork were taking a beating, I had a break in my work schedule, and an opportunity to participate in a very promising, cutting-edge trial.

Two independent oncologists agreed it was good timing and the right thing to do, so I jumped through all the hoops and was accepted into the trial.

The trial required at least 4 weeks washout from any previous chemo, followed by 7 weeks in the treatment / observation phase. Insurance issues, travel, and other logistics added about 2 weeks, making a 13-week (3-month) period off chemo before I got final results.

Unfortunately, the treatment did no good at all. Cancer grew and spread during that time period instead. We were able to revert to and resume my previous chemo within two weeks of those final results, but the tumor growth didn't just stop on a dime. The primary tumor continued to advance, and within two weeks, landed me in the hospital with an intestinal blockage where I am today, awaiting placement of a stent to open the blockage so I can eat again.

---

In hindsight, a few months before the hints of drug resistance developed, one of my oncologists said I was responding so surprisingly well to the GAC for so long that it would border on unethical to go off it for a trial of unknown efficacy. Although I did reach the point where the trial made sense, the "unknown efficacy" part (which turned out to be zero) was a real disappointment.

Phase-1 trials offer a lot of innovative and promising treatments, but their primary purpose (along with testing effectiveness) is to identify dose-limiting toxicities and recommended dosing for Phase-2 trials. Phase-2 seems to be a sweet spot somewhere between Phase-1 (being a guinea pig) and Phase-3 (risk of placebo).

I thought this was important enough to share. I hope my lesson from this is a benefit to someone!

Jump to this post

@markymarkfl
I had the great opportunity to talk with Dr Daniel Von Hoff this past weekend. His lab developed Gemcitibine and spoke about other combos that are being tested with it. Since you had such good response for awhile with it, you may want to reach out with your distinctive case. He, or his close colleague Dr Erkut Boranczanci may find this very interesting and have answers that others may not yet be aware of. Just a thought.
Keep fighting!

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@gamaryanne

@aristidina
Yes, I am on the doublet trial of RMC 9805 and RMC 6236.

These target KRAS mutations.

@markymarkfl -was your a BRCA trial? Wishing you the best on your search for next steps

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gamaryanne: I had some communications with Markymarkfl back in June and it was Trop2 protein at HD Anderson in Houston; stem cell approach. I know he also has ATM and KRAS12D mutations as I do and CHEK (which I don’t).
I’m also wondering if you will need to go through a phase 3 trial that might include a placebo?

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@mnewland99

gamaryanne: I had some communications with Markymarkfl back in June and it was Trop2 protein at HD Anderson in Houston; stem cell approach. I know he also has ATM and KRAS12D mutations as I do and CHEK (which I don’t).
I’m also wondering if you will need to go through a phase 3 trial that might include a placebo?

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Yep, my trial was a single-site trial at MD Anderson in Houston. Amazing place with so much cutting-edge work going on.

The trial was independent of traditional mutations, just requiring tumor tissue to express the TROP2 protein. They have a custom line of stem cells derived from preserved/donated umbilical cord blood. The Natural Killer (NK) cells are engineered to recognize and attack cells that express TROP2 while leaving healthy cells alone.

They used a similar approach with good success a few years ago to target other cancer types, and I think the delivery method was intravenous. My trial was open for 3 diseases (two gyno types: ovarian cancer and mesonephric-like adenocarcinoma) and pancreatic, as long as there was metastasis to the peritoneum (common in all 3 cancer types). These cells were injected into the peritoneal space rather than intravenously, with the idea they would make direct physical contact there, but also be absorbed into the bloodstream and be distributed systemically.

It was a Phase-1, first-in-human (FIH) trial, and I was patient #5 overall, #2 for pancreatic, and at the 2nd of 3 planned dose levels to be tested. There was really good in-vitro data for it, and good results from similar intravenous treatment with other cancer types, but very little else to go on other than faith. I didn't really have a good opportunity to wait for the next dose level or success signals from previous patients.

I don't have any news about how it's going for other participants, but the 4-month chemo holiday without a successful response in the trial may be my eventual undoing. That stomach blockage I mentioned is now way too tight to pass a stent (much less liquids or food) through, so we're adding some radiation to try and reduce it enough for a stent. Low odds, but we might see results in a few weeks. Meanwhile, I'm not allowed to eat or drink anything but ice chips. I've got a new gastric drain/vent tube inserted to relieve stomach pressure, and a new chest port to get central nutrition (TPN) delivered into a vein. I miss coffee!!!

Another downside to this is that I've lost about 20 pounds, a lot of muscle mass, and since I can't even take an oral pill, there are a lot of trials I won't qualify for. 🙁

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@gamaryanne

@markymarkfl
I had the great opportunity to talk with Dr Daniel Von Hoff this past weekend. His lab developed Gemcitibine and spoke about other combos that are being tested with it. Since you had such good response for awhile with it, you may want to reach out with your distinctive case. He, or his close colleague Dr Erkut Boranczanci may find this very interesting and have answers that others may not yet be aware of. Just a thought.
Keep fighting!

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Thanks @gamaryanne , I'll see where that gets me.

I'm also hoping to get in with Dr. Christopher Wolfgang ay NYU/Langone to see if that non-invasive histotripsy (high-intensity focused ultrasound) procedure might work on the tumor causing my blockage. (My tumor is at the Whipple site, while the histotripsy procedure has only been done on liver tumors, as far as I know. But it won't stop me from asking!)

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