Circulating tumor DNA
400
MENTIONS
89
EPISODES
55
PODCASTS
Search complete. 400 mentions across 89 episodes found for "Circulating tumor DNA".
Sep 19, 2026
(Audio) Immunotherapy in Bladder Cancer: Practice-Changing Advances Every Urology Professional Should Know
M
20:49Matthew GalskyGUEST
They used the tumor-informed Signatera assay, and they applied this again retrospectively.
M
20:54Matthew GalskyGUEST
And you can see on the slide, the disease-free survival and overall survival results of the study now stratified by whether or not there was detectable circulating tumor DNA in at that first visit after surgery when patients were registered on the study.
M
21:10Matthew GalskyGUEST
And you can see that in patients with detectable ctDNA, there seems to be a benefit in terms of disease-free survival and overall survival now with adjuvant atezolizumab versus observation, whereas in patients with undetectable ctDNA, much more difficult to show that benefit.
M
21:29Matthew GalskyGUEST
And so this really helps us feel confident that the lack of benefit in Invigor10 from a primary study endpoint standpoint was not because the hypothesis was flawed, but rather because the patients were not enriched with the highest likelihood for needing treatment based on the presence of micrometastatic disease.
M
21:54Matthew GalskyGUEST
very interesting clinical validation of this concept in a retrospective cohort.
M
22:09Matthew GalskyGUEST
So Invigor11 basically took that concept from Invigor10 and tested it prospectively.
M
22:15Matthew GalskyGUEST
Patients who had undergone cystectomy for muscle invasive bladder cancer who had high-risk pathological features, the same features that I mentioned for that prior generation of adjuvant IO studies, were enrolled.
M
22:28Matthew GalskyGUEST
However, after enrollment, patients had ctDNA testing.
Gynecologic Cancers — Reviewing Key Presentations from the 2026 ASCO Annual Meeting
B
15:47Brian SlomovitzGUEST
There's always toxicity associated with some of these drugs.
B
15:49Brian SlomovitzGUEST
So maybe we'll be able to learn more, stop the maintenance therapy earlier, maybe incorporate ctDNA into how long the maintenance should be.
B
15:58Brian SlomovitzGUEST
But I think that's another finding in this study that we have to take a closer look on as far as duration of therapy.
N
16:04Neil LoveHOST
That's really a great point.
33 MINS LATER
G
49:31Gottfried E KonecnyGUEST
And none of the biomarkers really directed towards either TDXD or Mervituximab as a useful next line of therapy in platinum-resistant disease.
G
49:39Gottfried E KonecnyGUEST
So she started and is tolerating treatment well.
G
49:44Gottfried E KonecnyGUEST
And we have early signs of decreasing CA125 and ctDNA dropping.
G
49:50Gottfried E KonecnyGUEST
So encouraging.
Gynecologic Cancers — Reviewing Key Presentations from the 2026 ASCO Annual Meeting
B
15:47Brian M SlomovitzGUEST
There's always toxicity associated with some of these drugs.
B
15:49Brian M SlomovitzGUEST
So maybe we'll be able to learn more, stop the maintenance therapy earlier, maybe incorporate ctDNA into how long the maintenance should be.
B
15:58Brian M SlomovitzGUEST
But I think that's another finding in this study that we have to take a closer look on as far as duration of therapy.
N
16:04Neil LoveHOST
That's really a great point.
33 MINS LATER
G
49:31Gottfried E KonecnyGUEST
And none of the biomarkers really directed towards either TDXD or Mervituximab as a useful next line of therapy in platinum-resistant disease.
G
49:39Gottfried E KonecnyGUEST
So she started and is tolerating treatment well.
G
49:44Gottfried E KonecnyGUEST
And we have early signs of decreasing CA125 and ctDNA dropping.
G
49:50Gottfried E KonecnyGUEST
So encouraging.
Gynecologic Cancers — Reviewing Key Presentations from the 2026 ASCO Annual Meeting
B
15:47Brian M SlomovitzGUEST
There's always toxicity associated with some of these drugs.
B
15:49Brian M SlomovitzGUEST
So maybe we'll be able to learn more, stop the maintenance therapy earlier, maybe incorporate ctDNA into how long the maintenance should be.
B
15:57Brian M SlomovitzGUEST
But I think that's another finding in this study that we have to take a closer look on as far as duration of therapy.
N
16:04Neil LoveHOST
That's really a great point.
33 MINS LATER
G
49:31Gottfried E KonecnyGUEST
And none of the biomarkers really directed towards either TDXD or Mervituximab as a useful next line of therapy in platinum-resistant disease.
G
49:39Gottfried E KonecnyGUEST
So she started and is tolerating treatment well.
G
49:44Gottfried E KonecnyGUEST
And we have early signs of decreasing CA125 and ctDNA dropping.
G
49:50Gottfried E KonecnyGUEST
So encouraging.
Ep 90: Am I Too Young for Colon Cancer? With Amber Mike | The Health Exchange Podcast
K
30:29Krushangi PatelGUEST
And so she actually went through quite a bit more than a lot of patients do as far as getting chemotherapy afterwards.
K
30:35Krushangi PatelGUEST
So we now use that ongoing, that CT DNA or circulating tumor DNA to look and see whether there is any signs of cells or circulating tumor genetic material that's in her now or moving forward.
K
30:50Krushangi PatelGUEST
And we used it to determine when or how long she needed treatment afterwards as well.
J
30:57Jay RutlandHOST
So January 24, she comes in your office.
Camizestrant + CDK 46i FDA Approval in Hormone Receptor Positive Breast Cancer SERENA-6
E
2:45Erica MayerGUEST
Patients who had been on their first-line aromatase inhibitor and CDK4-6 inhibitor for at least six months entered into screening.
E
2:53Erica MayerGUEST
where they had ctDNA drawn to look for emergence of the ESR1 mutation.
E
2:58Erica MayerGUEST
And this testing was done about every three months, corresponding to times of restaging.
E
3:03Erica MayerGUEST
So we might think about four times a year they had ctDNA drawn.
E
3:07Erica MayerGUEST
What was being looked for was the emergence of this mutation, but in the absence of clinical progression.
E
3:13Erica MayerGUEST
So about 3,000 patients entered the screening step of the study and had this serial testing done.
E
6:11Erica MayerGUEST
Additionally, there's some really provocative molecular data that's come out of Serena 6.
E
6:15Erica MayerGUEST
For example, looking at the change in the variant allele fraction of the ESR1 mutation over time, showing that in the patients who switched to camazestrin, there was a dramatic drop in the ESR1 VAF level, compared to in the aromatase inhibitor arm, that level just climbs because you're seeing the disease progressing while they're not being treated for the ESR1 mutation.
Metastatic Bladder Cancer — Rapid Case Review Issue 8
N
2:14Neil LoveHOST
Any questions for the faculty?
N
2:16Nazli DizmanGUEST
If I am stopping all his anti-cancer therapies, can I utilize ctDNA to monitor his disease burden in the meanwhile? What are your top process when starting someone with type 2 diabetes on EnfortMap Vedotin? Whether you take into account if they are on insulin or not, or their A1c level to start EnfortMap Vedotin? For this gentleman with grade 3 pneumonitis, we didn't really think that re-challenge was possible, especially he required high-dose corticosteroid for a prolonged amount of time.
N
2:57Nazli DizmanGUEST
But in general, how do you approach to pneumonitis in bladder cancer population? If you could talk about your general approach based on grading of the pneumonitis and the impact on whether to re-challenge for what specific scenarios?
N
3:14Neil LoveHOST
Any comments on the case? And also, whether it's clear or maybe there's some other reason that the pneumonitis is from the PEMBRO, could it have been from the infortimab also?
Metastatic Bladder Cancer — Rapid Case Review Issue 7
A
2:47Alexandra DrakakiGUEST
So when they come to us, You know, the question that always comes up and patients are asking us is, when did that happen? Could we have prevented this? Was it missed? And so it's still a question of the timing, especially since these patients only undergo cystoscopies and urine cytology.
A
3:09Alexandra DrakakiGUEST
Maybe the ctDNA story will change that.
A
3:12Alexandra DrakakiGUEST
Maybe if we start getting more and more testing, we'll catch those that are developing or are prone to develop oligometastatic or full-blown metastatic disease.
A
3:23Alexandra DrakakiGUEST
But again, it's not uncommon, at least in a specific TU oncology clinic.
8 MINS LATER
A
11:36Alexandra DrakakiGUEST
And we don't, we are not stopping treatment.
A
11:38Alexandra DrakakiGUEST
The trial does not require to stop treatment.
A
11:42Alexandra DrakakiGUEST
We follow the ctDNA since that came up.
A
11:46Alexandra DrakakiGUEST
And, you know, it's a tough call to make, to stop if there is no toxicity.
Metastatic Bladder Cancer — Rapid Case Review Issue 8
N
2:14Neil LoveHOST
Any questions for the faculty?
N
2:16Nazli DizmanGUEST
If I am stopping all his anti-cancer therapies, can I utilize ctDNA to monitor his disease burden in the meanwhile? What are your top process when starting someone with type 2 diabetes on EnfortMap Vedotin? Whether you take into account if they are on insulin or not, or their A1c level to start EnfortMap Vedotin? For this gentleman with grade 3 pneumonitis, we didn't really think that re-challenge was possible, especially he required high-dose corticosteroid for a prolonged amount of time.
N
2:57Nazli DizmanGUEST
But in general, how do you approach pneumonitis in bladder cancer population? If you could talk about your general approach based on grading of the pneumonitis and the impact on whether to re-challenge for what specific scenarios?
N
3:14Neil LoveHOST
Any comments on the case? And also, whether it's clear, or maybe there's some other reason that the pneumonitis is from the PEMBRO, could it have been from the Enfortimab also?
Metastatic Bladder Cancer — Rapid Case Review Issue 8
N
2:14Neil LoveHOST
Any questions for the faculty?
N
2:17Nazli DizmanGUEST
If I am stopping all his anticancer therapies, can I utilize ctDNA to monitor his disease burden in the meanwhile? What are your top process when starting someone with type 2 diabetes on enfortumab vedotin, whether you take into account if they are on insulin or not, or their A1C level to start enfortumab vedotin? For this gentleman with grade three pneumonitis, we didn't really think that a re-challenge was possible, especially he required high-dose corticosteroid for a prolonged amount of time.
N
2:57Nazli DizmanGUEST
But in general, how do you approach to pneumonitis in bladder cancer population? If you could talk about your general approach based on grading of the pneumonitis and the impact on whether to re-challenge for what specific scenarios.
N
3:14Neil LoveHOST
Any comments on the case? And also, whether it's clear or maybe there's some other reason that the pneumonitis is from the pembro.
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