User login
For NSCLC, neoadjuvant, adjuvant, or both?
This transcript has been edited for clarity.
Dr. West: Here at ASCO 2023 [American Society of Clinical Oncology] in Chicago, we’ve seen some blockbuster presentations in thoracic oncology. Many of these have brought up some important questions about the clinical implications that we need to discuss further.
At ASCO, as well as in the couple or 3 months preceding ASCO, we’ve gotten more and more data on perioperative approaches. Of course, over the past couple of years, we’ve had some new options of postoperative immunotherapy for a year, say, after chemotherapy or possibly after chemotherapy.
We have also had very influential data, such as the CheckMate 816 trial that gave three cycles of chemotherapy with nivolumab vs. chemotherapy alone to patients with stage IB to IIIA disease, but largely, nearly two thirds, with IIIA disease. That showed a very clear improvement in the pathologic complete response (pCR) rate with nivolumab added to chemotherapy and also a highly significant improvement in event-free survival and a strong trend toward improved overall survival. This is FDA approved and has been increasingly adopted, I would say, maybe with some variability by geography and center, but really a good amount of enthusiasm.
Now, we have a bunch of trials that give chemotherapy with immunotherapy. We’ve got the AEGEAN trial with durvalumab. We have Neotorch with chemotherapy and toripalimab. At ASCO 2023, we had a highly prominent presentation of KEYNOTE-671, giving four cycles of chemotherapy with pembrolizumab vs. chemotherapy and placebo.
Then there’s the built-in postoperative component of a year of immunotherapy as well, in all these trials. The data for KEYNOTE-671 look quite good. Of course, the other trials also were significant. I would say the comparator now is not nothing or chemotherapy alone anymore; it’s really against what is the best current standard of care.
It certainly adds some cost, it adds some risk for toxicity, and it adds a year of a patient coming into the clinic and getting IV infusions all this time to get a treatment that the patient has already had for four cycles in most of these trials.
If your cancer is resistant, is there going to be an incremental benefit to giving more of it? What are your thoughts about the risk and benefit? Going to a patient in your own clinic, how are you going to counsel your patients? Will anything change after the presentation of all these data and how you approach preoperatively?
Dr. Rotow: I agree. In some sense, it’s an embarrassment of riches, right?
Dr. West: Yes.
Dr. Rotow: We have so many positive studies looking at perioperative immunotherapy for our patients. They all show improved outcomes, but of course, they all compare with the old control arm of chemotherapy alone in some form, and this is no longer a useful control in this space. The open question is, do you use neoadjuvant, do you use adjuvant, or do you use both?
My high-level takeaway from these data is that the neoadjuvant component appears to be important. I think the overall trend, comparing across studies, of course, is that outcomes seem to be better with the neoadjuvant component. You also get the advantage of potential downstaging and potential greater ease of surgical resection. We know they have lower morbidity resection and shorter surgeries. You can comment on that. You also get your pathologic response data.
Dr. West: You get the feedback.
Dr. Rotow: Exactly.
Dr. West: The deliverability is also a big issue. You know you can much more reliably deliver your intended treatment by doing neoadjuvant followed by surgery.
Dr. Rotow: Exactly.
Dr. West: We know there’s major drop-off if patients have surgery, and in the recovery room they hear you got it all, and then they need to come back and maybe get chemotherapy and immunotherapy for a year. They’d ask, “What for? I can’t see anything.”
Dr. Rotow: Exactly. I think there are many advantages to that neoadjuvant component. I think all or many of us now have integrated this into our routine practice. Now the question is, do you need the adjuvant element or not on top? That is challenging because no trial has compared adjuvant to nonadjuvant. I think we all advocate for the need for this trial to answer this in a more randomized, prospective fashion. Of course, that doesn’t help our clinic practice tomorrow when we see a patient.
Dr. West: Or for the next 4 years.
Dr. Rotow: Or for the next 4 years – exactly. There’s going to be the open question of who really needs this? In some sense, we may be guided by the path response during the surgery itself. I think there may be those who claim that if you have a pCR, do you really need additional therapy? We don’t know the answer, but it’s tempting to say we know the outcomes in event-free survival are extremely good with a pCR.
Dr. West: Which is only 20% or 25% of patients, so it’s not most.
Dr. Rotow: It’s not most, but it’s better than the 2% or so with chemotherapy alone. That’s real progress, and it’s nice to have that readout. For that 80% without a pCR, what to do? I suspect there will be variation from provider to provider and from patient to patient, depending on tolerability to prior therapy, the patient’s wishes around the goals of care, and the patient’s risk for autoimmune toxicities.
Maybe there’s a patient with underlying autoimmune disease who’s gotten their neoadjuvant therapy and done well. You don’t want to risk that ongoing risk of exposure. Perhaps a patient with no risk factors who desires very aggressive treatment might be interested in more treatment.
In KEYNOTE-671, I was interested in the PD-L1 subgroups. These did trend the way you expect, with better responses in PD-L1 high, but there were also good outcomes and benefit to immunotherapy with the perioperative strategy in PD-L1–negative patients.
Dr. West: That didn’t really exclude anybody.
Dr. Rotow: It didn’t exclude anybody. In CheckMate 816, everyone benefited, but the benefit was less with those PD-L1–negative patients.
Dr. West: True.
Dr. Rotow: Absent further data to guide me or any prospective data here comparing these strategies, I might lean toward a longer course of immunotherapy in that population in hopes of triggering a response. I suspect that there will be variation from clinician to clinician in that space.
Dr. West: This is a setting where I feel like I have equipoise. I really feel that the incremental benefit is pretty small.
Dr. Rotow: Small. I agree.
Dr. West: It’s, frankly, somewhat dubious. On the other hand, you’re in a situation where if you know that three of four patients will experience a relapse and less-than-amazing outcomes, it’s hard to leave something that’s FDA approved and studied and a well-sanctioned option on the table if this patient may have relapse later.
In the end, I feel like I’d like to offer this and discuss it with all my patients. I think it’s a great place for shared decision-making because if a patient hears about that and decides they’re not interested, I’ll be fine with that. I think that’s a very sensible approach, but I don’t want to make it unilaterally. Other patients may say they want every opportunity, and if it comes back, at least I’ll know I did everything we could.
Dr. Rotow: Exactly. I agree with your statement about equipoise. I truly think that this is present here in the situation, and that there’s room for discussion in both directions with patients.
Now, one caveat I’d like to add to all these data is that the data should not apply to patients with some of our classic nonsmoking-associated driver mutations. This is another piece to the neoadjuvant data that I think is worth commenting on – the need to get appropriate testing before initiation of therapy and the pitfalls of starting this kind of treatment without knowing full biomarker testing. I think that’s something we have to watch for in our clinical practice as well.
Dr. West: Perhaps especially if we’re talking about doing a year of postoperative and someone has an ALK rearrangement or an EGFR mutation and we didn’t know it. That is a group where we’re worried about a rapid transition and potentially prohibitive, even life-threatening, toxicities from not planning in advance for this. This is something you don’t want to give concurrently or one right on top of the other. You don’t want to give immunotherapy and then transition right to targeted therapy. It’s dangerous.
Dr. Rotow: Exactly. The stakes were already high with neoadjuvant alone, but at least you had that gap of the presurgical period, surgical recovery, and then initiation of adjuvant therapy, if needed, or at relapse. With a postoperative long adjuvant period, those stakes are elevated because the immunotherapy exposure continues, so it’s something to be mindful of.
Dr. West: We have a general sense that many, but not all, of the targets that we’re talking about are associated with low benefit from immunotherapy. It’s not that well studied. I think this is another place for individualized discussion of the pros and cons. They were included in the trial, but they probably benefit less.
Dr. Rotow: Exactly. I think with the best established, EGFR and ALK probably are not benefiting much. They were actually included in the trial. Many of the neoadjuvant studies do not allow them to enroll if they’re known. On the other end of that spectrum, I think KRAS is just fine to treat with immunotherapy.
Dr. West: Sure.
Dr. Rotow: It’s an actionable driver. It’s not a traditional nonsmoking-associated driver, and those do just fine.
Dr. West: The studies show that these patients benefit just as much, at least, as the other patients.
Dr. Rotow: Exactly. I would never withhold this form of therapy for a KRAS driver mutation. The others, I think, are still in a gray zone. Depending on the patient demographics and tobacco use, I may elicit more or less caution in that space.
Dr. West: Well, I think we’re going to have much to still tease apart, with room for judgment here without a strong sense of the data telling us exactly what to do.
Dr. Rotow: Exactly.
Dr. West: There’s a large amount of excitement and interest in these new data, but there are still many open questions. I hope we continue to mull it over as we get more data and more insight to shape our plans.
Dr. West is an associate professor at City of Hope Comprehensive Cancer Center in Duarte, Calif., and vice president of network strategy at AccessHope in Los Angeles. Dr. Rotow is the clinical director of the Lowe Center for Thoracic Oncology at the Dana-Farber Cancer Institute in Boston. Dr. West reported conflicts of interest with Ariad/Takeda, Bristol Myers Squibb, Boehringer Ingelheim, Spectrum, AstraZeneca, Celgene, Genentech/Roche, Pfizer, Merck, and Eli Lilly. Dr. Rotow reported conflicts of interest with Genentech, AstraZeneca,Guardant, and Janssen.
A version of this article first appeared on Medscape.com.
This transcript has been edited for clarity.
Dr. West: Here at ASCO 2023 [American Society of Clinical Oncology] in Chicago, we’ve seen some blockbuster presentations in thoracic oncology. Many of these have brought up some important questions about the clinical implications that we need to discuss further.
At ASCO, as well as in the couple or 3 months preceding ASCO, we’ve gotten more and more data on perioperative approaches. Of course, over the past couple of years, we’ve had some new options of postoperative immunotherapy for a year, say, after chemotherapy or possibly after chemotherapy.
We have also had very influential data, such as the CheckMate 816 trial that gave three cycles of chemotherapy with nivolumab vs. chemotherapy alone to patients with stage IB to IIIA disease, but largely, nearly two thirds, with IIIA disease. That showed a very clear improvement in the pathologic complete response (pCR) rate with nivolumab added to chemotherapy and also a highly significant improvement in event-free survival and a strong trend toward improved overall survival. This is FDA approved and has been increasingly adopted, I would say, maybe with some variability by geography and center, but really a good amount of enthusiasm.
Now, we have a bunch of trials that give chemotherapy with immunotherapy. We’ve got the AEGEAN trial with durvalumab. We have Neotorch with chemotherapy and toripalimab. At ASCO 2023, we had a highly prominent presentation of KEYNOTE-671, giving four cycles of chemotherapy with pembrolizumab vs. chemotherapy and placebo.
Then there’s the built-in postoperative component of a year of immunotherapy as well, in all these trials. The data for KEYNOTE-671 look quite good. Of course, the other trials also were significant. I would say the comparator now is not nothing or chemotherapy alone anymore; it’s really against what is the best current standard of care.
It certainly adds some cost, it adds some risk for toxicity, and it adds a year of a patient coming into the clinic and getting IV infusions all this time to get a treatment that the patient has already had for four cycles in most of these trials.
If your cancer is resistant, is there going to be an incremental benefit to giving more of it? What are your thoughts about the risk and benefit? Going to a patient in your own clinic, how are you going to counsel your patients? Will anything change after the presentation of all these data and how you approach preoperatively?
Dr. Rotow: I agree. In some sense, it’s an embarrassment of riches, right?
Dr. West: Yes.
Dr. Rotow: We have so many positive studies looking at perioperative immunotherapy for our patients. They all show improved outcomes, but of course, they all compare with the old control arm of chemotherapy alone in some form, and this is no longer a useful control in this space. The open question is, do you use neoadjuvant, do you use adjuvant, or do you use both?
My high-level takeaway from these data is that the neoadjuvant component appears to be important. I think the overall trend, comparing across studies, of course, is that outcomes seem to be better with the neoadjuvant component. You also get the advantage of potential downstaging and potential greater ease of surgical resection. We know they have lower morbidity resection and shorter surgeries. You can comment on that. You also get your pathologic response data.
Dr. West: You get the feedback.
Dr. Rotow: Exactly.
Dr. West: The deliverability is also a big issue. You know you can much more reliably deliver your intended treatment by doing neoadjuvant followed by surgery.
Dr. Rotow: Exactly.
Dr. West: We know there’s major drop-off if patients have surgery, and in the recovery room they hear you got it all, and then they need to come back and maybe get chemotherapy and immunotherapy for a year. They’d ask, “What for? I can’t see anything.”
Dr. Rotow: Exactly. I think there are many advantages to that neoadjuvant component. I think all or many of us now have integrated this into our routine practice. Now the question is, do you need the adjuvant element or not on top? That is challenging because no trial has compared adjuvant to nonadjuvant. I think we all advocate for the need for this trial to answer this in a more randomized, prospective fashion. Of course, that doesn’t help our clinic practice tomorrow when we see a patient.
Dr. West: Or for the next 4 years.
Dr. Rotow: Or for the next 4 years – exactly. There’s going to be the open question of who really needs this? In some sense, we may be guided by the path response during the surgery itself. I think there may be those who claim that if you have a pCR, do you really need additional therapy? We don’t know the answer, but it’s tempting to say we know the outcomes in event-free survival are extremely good with a pCR.
Dr. West: Which is only 20% or 25% of patients, so it’s not most.
Dr. Rotow: It’s not most, but it’s better than the 2% or so with chemotherapy alone. That’s real progress, and it’s nice to have that readout. For that 80% without a pCR, what to do? I suspect there will be variation from provider to provider and from patient to patient, depending on tolerability to prior therapy, the patient’s wishes around the goals of care, and the patient’s risk for autoimmune toxicities.
Maybe there’s a patient with underlying autoimmune disease who’s gotten their neoadjuvant therapy and done well. You don’t want to risk that ongoing risk of exposure. Perhaps a patient with no risk factors who desires very aggressive treatment might be interested in more treatment.
In KEYNOTE-671, I was interested in the PD-L1 subgroups. These did trend the way you expect, with better responses in PD-L1 high, but there were also good outcomes and benefit to immunotherapy with the perioperative strategy in PD-L1–negative patients.
Dr. West: That didn’t really exclude anybody.
Dr. Rotow: It didn’t exclude anybody. In CheckMate 816, everyone benefited, but the benefit was less with those PD-L1–negative patients.
Dr. West: True.
Dr. Rotow: Absent further data to guide me or any prospective data here comparing these strategies, I might lean toward a longer course of immunotherapy in that population in hopes of triggering a response. I suspect that there will be variation from clinician to clinician in that space.
Dr. West: This is a setting where I feel like I have equipoise. I really feel that the incremental benefit is pretty small.
Dr. Rotow: Small. I agree.
Dr. West: It’s, frankly, somewhat dubious. On the other hand, you’re in a situation where if you know that three of four patients will experience a relapse and less-than-amazing outcomes, it’s hard to leave something that’s FDA approved and studied and a well-sanctioned option on the table if this patient may have relapse later.
In the end, I feel like I’d like to offer this and discuss it with all my patients. I think it’s a great place for shared decision-making because if a patient hears about that and decides they’re not interested, I’ll be fine with that. I think that’s a very sensible approach, but I don’t want to make it unilaterally. Other patients may say they want every opportunity, and if it comes back, at least I’ll know I did everything we could.
Dr. Rotow: Exactly. I agree with your statement about equipoise. I truly think that this is present here in the situation, and that there’s room for discussion in both directions with patients.
Now, one caveat I’d like to add to all these data is that the data should not apply to patients with some of our classic nonsmoking-associated driver mutations. This is another piece to the neoadjuvant data that I think is worth commenting on – the need to get appropriate testing before initiation of therapy and the pitfalls of starting this kind of treatment without knowing full biomarker testing. I think that’s something we have to watch for in our clinical practice as well.
Dr. West: Perhaps especially if we’re talking about doing a year of postoperative and someone has an ALK rearrangement or an EGFR mutation and we didn’t know it. That is a group where we’re worried about a rapid transition and potentially prohibitive, even life-threatening, toxicities from not planning in advance for this. This is something you don’t want to give concurrently or one right on top of the other. You don’t want to give immunotherapy and then transition right to targeted therapy. It’s dangerous.
Dr. Rotow: Exactly. The stakes were already high with neoadjuvant alone, but at least you had that gap of the presurgical period, surgical recovery, and then initiation of adjuvant therapy, if needed, or at relapse. With a postoperative long adjuvant period, those stakes are elevated because the immunotherapy exposure continues, so it’s something to be mindful of.
Dr. West: We have a general sense that many, but not all, of the targets that we’re talking about are associated with low benefit from immunotherapy. It’s not that well studied. I think this is another place for individualized discussion of the pros and cons. They were included in the trial, but they probably benefit less.
Dr. Rotow: Exactly. I think with the best established, EGFR and ALK probably are not benefiting much. They were actually included in the trial. Many of the neoadjuvant studies do not allow them to enroll if they’re known. On the other end of that spectrum, I think KRAS is just fine to treat with immunotherapy.
Dr. West: Sure.
Dr. Rotow: It’s an actionable driver. It’s not a traditional nonsmoking-associated driver, and those do just fine.
Dr. West: The studies show that these patients benefit just as much, at least, as the other patients.
Dr. Rotow: Exactly. I would never withhold this form of therapy for a KRAS driver mutation. The others, I think, are still in a gray zone. Depending on the patient demographics and tobacco use, I may elicit more or less caution in that space.
Dr. West: Well, I think we’re going to have much to still tease apart, with room for judgment here without a strong sense of the data telling us exactly what to do.
Dr. Rotow: Exactly.
Dr. West: There’s a large amount of excitement and interest in these new data, but there are still many open questions. I hope we continue to mull it over as we get more data and more insight to shape our plans.
Dr. West is an associate professor at City of Hope Comprehensive Cancer Center in Duarte, Calif., and vice president of network strategy at AccessHope in Los Angeles. Dr. Rotow is the clinical director of the Lowe Center for Thoracic Oncology at the Dana-Farber Cancer Institute in Boston. Dr. West reported conflicts of interest with Ariad/Takeda, Bristol Myers Squibb, Boehringer Ingelheim, Spectrum, AstraZeneca, Celgene, Genentech/Roche, Pfizer, Merck, and Eli Lilly. Dr. Rotow reported conflicts of interest with Genentech, AstraZeneca,Guardant, and Janssen.
A version of this article first appeared on Medscape.com.
This transcript has been edited for clarity.
Dr. West: Here at ASCO 2023 [American Society of Clinical Oncology] in Chicago, we’ve seen some blockbuster presentations in thoracic oncology. Many of these have brought up some important questions about the clinical implications that we need to discuss further.
At ASCO, as well as in the couple or 3 months preceding ASCO, we’ve gotten more and more data on perioperative approaches. Of course, over the past couple of years, we’ve had some new options of postoperative immunotherapy for a year, say, after chemotherapy or possibly after chemotherapy.
We have also had very influential data, such as the CheckMate 816 trial that gave three cycles of chemotherapy with nivolumab vs. chemotherapy alone to patients with stage IB to IIIA disease, but largely, nearly two thirds, with IIIA disease. That showed a very clear improvement in the pathologic complete response (pCR) rate with nivolumab added to chemotherapy and also a highly significant improvement in event-free survival and a strong trend toward improved overall survival. This is FDA approved and has been increasingly adopted, I would say, maybe with some variability by geography and center, but really a good amount of enthusiasm.
Now, we have a bunch of trials that give chemotherapy with immunotherapy. We’ve got the AEGEAN trial with durvalumab. We have Neotorch with chemotherapy and toripalimab. At ASCO 2023, we had a highly prominent presentation of KEYNOTE-671, giving four cycles of chemotherapy with pembrolizumab vs. chemotherapy and placebo.
Then there’s the built-in postoperative component of a year of immunotherapy as well, in all these trials. The data for KEYNOTE-671 look quite good. Of course, the other trials also were significant. I would say the comparator now is not nothing or chemotherapy alone anymore; it’s really against what is the best current standard of care.
It certainly adds some cost, it adds some risk for toxicity, and it adds a year of a patient coming into the clinic and getting IV infusions all this time to get a treatment that the patient has already had for four cycles in most of these trials.
If your cancer is resistant, is there going to be an incremental benefit to giving more of it? What are your thoughts about the risk and benefit? Going to a patient in your own clinic, how are you going to counsel your patients? Will anything change after the presentation of all these data and how you approach preoperatively?
Dr. Rotow: I agree. In some sense, it’s an embarrassment of riches, right?
Dr. West: Yes.
Dr. Rotow: We have so many positive studies looking at perioperative immunotherapy for our patients. They all show improved outcomes, but of course, they all compare with the old control arm of chemotherapy alone in some form, and this is no longer a useful control in this space. The open question is, do you use neoadjuvant, do you use adjuvant, or do you use both?
My high-level takeaway from these data is that the neoadjuvant component appears to be important. I think the overall trend, comparing across studies, of course, is that outcomes seem to be better with the neoadjuvant component. You also get the advantage of potential downstaging and potential greater ease of surgical resection. We know they have lower morbidity resection and shorter surgeries. You can comment on that. You also get your pathologic response data.
Dr. West: You get the feedback.
Dr. Rotow: Exactly.
Dr. West: The deliverability is also a big issue. You know you can much more reliably deliver your intended treatment by doing neoadjuvant followed by surgery.
Dr. Rotow: Exactly.
Dr. West: We know there’s major drop-off if patients have surgery, and in the recovery room they hear you got it all, and then they need to come back and maybe get chemotherapy and immunotherapy for a year. They’d ask, “What for? I can’t see anything.”
Dr. Rotow: Exactly. I think there are many advantages to that neoadjuvant component. I think all or many of us now have integrated this into our routine practice. Now the question is, do you need the adjuvant element or not on top? That is challenging because no trial has compared adjuvant to nonadjuvant. I think we all advocate for the need for this trial to answer this in a more randomized, prospective fashion. Of course, that doesn’t help our clinic practice tomorrow when we see a patient.
Dr. West: Or for the next 4 years.
Dr. Rotow: Or for the next 4 years – exactly. There’s going to be the open question of who really needs this? In some sense, we may be guided by the path response during the surgery itself. I think there may be those who claim that if you have a pCR, do you really need additional therapy? We don’t know the answer, but it’s tempting to say we know the outcomes in event-free survival are extremely good with a pCR.
Dr. West: Which is only 20% or 25% of patients, so it’s not most.
Dr. Rotow: It’s not most, but it’s better than the 2% or so with chemotherapy alone. That’s real progress, and it’s nice to have that readout. For that 80% without a pCR, what to do? I suspect there will be variation from provider to provider and from patient to patient, depending on tolerability to prior therapy, the patient’s wishes around the goals of care, and the patient’s risk for autoimmune toxicities.
Maybe there’s a patient with underlying autoimmune disease who’s gotten their neoadjuvant therapy and done well. You don’t want to risk that ongoing risk of exposure. Perhaps a patient with no risk factors who desires very aggressive treatment might be interested in more treatment.
In KEYNOTE-671, I was interested in the PD-L1 subgroups. These did trend the way you expect, with better responses in PD-L1 high, but there were also good outcomes and benefit to immunotherapy with the perioperative strategy in PD-L1–negative patients.
Dr. West: That didn’t really exclude anybody.
Dr. Rotow: It didn’t exclude anybody. In CheckMate 816, everyone benefited, but the benefit was less with those PD-L1–negative patients.
Dr. West: True.
Dr. Rotow: Absent further data to guide me or any prospective data here comparing these strategies, I might lean toward a longer course of immunotherapy in that population in hopes of triggering a response. I suspect that there will be variation from clinician to clinician in that space.
Dr. West: This is a setting where I feel like I have equipoise. I really feel that the incremental benefit is pretty small.
Dr. Rotow: Small. I agree.
Dr. West: It’s, frankly, somewhat dubious. On the other hand, you’re in a situation where if you know that three of four patients will experience a relapse and less-than-amazing outcomes, it’s hard to leave something that’s FDA approved and studied and a well-sanctioned option on the table if this patient may have relapse later.
In the end, I feel like I’d like to offer this and discuss it with all my patients. I think it’s a great place for shared decision-making because if a patient hears about that and decides they’re not interested, I’ll be fine with that. I think that’s a very sensible approach, but I don’t want to make it unilaterally. Other patients may say they want every opportunity, and if it comes back, at least I’ll know I did everything we could.
Dr. Rotow: Exactly. I agree with your statement about equipoise. I truly think that this is present here in the situation, and that there’s room for discussion in both directions with patients.
Now, one caveat I’d like to add to all these data is that the data should not apply to patients with some of our classic nonsmoking-associated driver mutations. This is another piece to the neoadjuvant data that I think is worth commenting on – the need to get appropriate testing before initiation of therapy and the pitfalls of starting this kind of treatment without knowing full biomarker testing. I think that’s something we have to watch for in our clinical practice as well.
Dr. West: Perhaps especially if we’re talking about doing a year of postoperative and someone has an ALK rearrangement or an EGFR mutation and we didn’t know it. That is a group where we’re worried about a rapid transition and potentially prohibitive, even life-threatening, toxicities from not planning in advance for this. This is something you don’t want to give concurrently or one right on top of the other. You don’t want to give immunotherapy and then transition right to targeted therapy. It’s dangerous.
Dr. Rotow: Exactly. The stakes were already high with neoadjuvant alone, but at least you had that gap of the presurgical period, surgical recovery, and then initiation of adjuvant therapy, if needed, or at relapse. With a postoperative long adjuvant period, those stakes are elevated because the immunotherapy exposure continues, so it’s something to be mindful of.
Dr. West: We have a general sense that many, but not all, of the targets that we’re talking about are associated with low benefit from immunotherapy. It’s not that well studied. I think this is another place for individualized discussion of the pros and cons. They were included in the trial, but they probably benefit less.
Dr. Rotow: Exactly. I think with the best established, EGFR and ALK probably are not benefiting much. They were actually included in the trial. Many of the neoadjuvant studies do not allow them to enroll if they’re known. On the other end of that spectrum, I think KRAS is just fine to treat with immunotherapy.
Dr. West: Sure.
Dr. Rotow: It’s an actionable driver. It’s not a traditional nonsmoking-associated driver, and those do just fine.
Dr. West: The studies show that these patients benefit just as much, at least, as the other patients.
Dr. Rotow: Exactly. I would never withhold this form of therapy for a KRAS driver mutation. The others, I think, are still in a gray zone. Depending on the patient demographics and tobacco use, I may elicit more or less caution in that space.
Dr. West: Well, I think we’re going to have much to still tease apart, with room for judgment here without a strong sense of the data telling us exactly what to do.
Dr. Rotow: Exactly.
Dr. West: There’s a large amount of excitement and interest in these new data, but there are still many open questions. I hope we continue to mull it over as we get more data and more insight to shape our plans.
Dr. West is an associate professor at City of Hope Comprehensive Cancer Center in Duarte, Calif., and vice president of network strategy at AccessHope in Los Angeles. Dr. Rotow is the clinical director of the Lowe Center for Thoracic Oncology at the Dana-Farber Cancer Institute in Boston. Dr. West reported conflicts of interest with Ariad/Takeda, Bristol Myers Squibb, Boehringer Ingelheim, Spectrum, AstraZeneca, Celgene, Genentech/Roche, Pfizer, Merck, and Eli Lilly. Dr. Rotow reported conflicts of interest with Genentech, AstraZeneca,Guardant, and Janssen.
A version of this article first appeared on Medscape.com.
FROM ASCO 2023
Did an unfair system help ADAURA win on overall survival?
Barry Bonds and Roger Clemens are two world-class baseball players who played well enough to earn enduring respect and admiration. However, their reputations have been permanently tainted by their use of performance-enhancing drugs. Although they are both undeniably gifted, we’ll never know where their natural talent ended and their unfair advantage began.
The medical oncology version of this scenario played out in front of our eyes at the ASCO 2023 Plenary Session featuring the ADAURA trial. In this case, the unfair advantage was clear: Nearly two-thirds of patients in the control arm did not cross over to a standard-of-care treatment at relapse.
The ADAURA trial tested the value of the third-generation oral EGFR inhibitor osimertinib vs. placebo for up to 3 years in patients with a resected stage IB-IIIA non–small cell lung cancer (NSCLC) harboring an activating EGFR mutation. Initially presented in the ASCO 2020 Plenary Session, the preliminary analysis for ADAURA demonstrated a remarkably favorable improvement in disease-free survival (DFS) in the osimertinib arm, which led to its prompt Food and Drug Administration approval in this setting.
At the time, I was among the more vocal critics of the fanfare around this trial. The DFS improvement was impressive but, in this context, represented a low threshold for FDA approval. We already knew that prior trials of other, less effective adjuvant EGFR inhibitors routinely improved DFS but ultimately failed to improve overall survival.
Although in some cases, a DFS benefit can be sufficient to warrant changing practice, I would argue that overall survival is the most critical endpoint in a curative setting by a wide margin. I would also argue that cost should be a consideration for a drug priced at $440,000 over 3 years in the United States. At the very least, we – patients, oncologists, payers – should want to clarify what we get for $440,000 per patient, especially if that money could be better spent on other things.
Of note, we need to know whether the same overall survival may be achieved in this setting by treating only patients whose disease relapses, avoiding both the cost and toxicity of continuous treatment.
The relevance of this question became even more acute when an updated version of the ADAURA trial showed that the DFS benefit from osimertinib began to erode immediately after patients completed active treatment. Although the DFS benefit remained excellent,
The overall survival data – the critical test in my mind – were presented at the ASCO Plenary Session. The results were highly positive, with a hazard ratio for overall survival of 0.49 and a similar benefit observed across all eligible disease stages.
As with the presentation of the DFS data in 2020, these results were accompanied by adulation during the session and fawning in the media. However, a subset of people in the audience, and on Twitter, voiced a major concern: In the control arm, only 38.5% of the patients whose disease had relapsed (79 of 205) ever received osimertinib.
Post-protocol treatment included reassurances that patients in the control arm were offered crossover to osimertinib, but this only occurred starting in April 2020 and only when the treating investigator requested it.
The fact that only a minority of patients in the control arm ever received osimertinib means that ADAURA is not a trial that tests adjuvant osimertinib to osimertinib at relapse, the prevailing standard of care in the United States and the preferred treatment in this setting, based on NCCN guidelines for patients with relapsed/metastatic EGFR mutation–positive NSCLC since the FDA approval in April 2018.
The change in standard of care in the United States and some other countries did not lead to an amendment in the trial, based on the argument that the trial was designed with DFS as the primary endpoint and that patients in the control arm are effectively off trial at relapse. That means patients would receive their country’s standard of care, which may be below, or different from, the standard in the United States or other parts of the world.
While defensible, others considered the low rate of osimertinib delivery in the control arm a serious flaw in the trial design and arguably an ethical problem.
Given this trial design, it’s important to question whether the trial magnified the difference in overall survival between the two arms compared with the standard of care in countries where adjuvant osimertinib will ultimately be marketed. Although I strongly suspect that the overall survival difference would have been significant without the disparity in access to osimertinib in the control arm, we will never know the magnitude of that difference.
With the current design, the trial demonstrates that osimertinib is associated with improved survival in 100% of patients with EGFR mutation–positive NSCLC who receive the agent vs. 38.5% of patients receiving it at some point after relapse.
At the end of the day, ADAURA followed conventional trial rules, which led to a windfall of accolades at the cost of suboptimal care for many of the patients randomly assigned to the control arm.
We need to decide as an oncology community whether we want to accept a system that confers rewards for stakeholders at the expense of patients enrolled in the trial.
We have developed a system that not only permits but depends on global trials enrolling many patients from countries with staging and off-protocol oncology care below standards of care in other parts of the world – effectively condoning and perpetuating disparities in optimal care globally. I am also saddened that some of the most respected leaders in our field have become upset when I question the ethics of accepting this system, one that I believe we have agency to change.
The question here is not whether osimertinib is a good drug; it is remarkably effective for patients with EGFR mutation–positive NSCLC. The question is how to design trials in a fair and balanced way that doesn’t compromise patient care or ethical standards.
If people think my assessment is too harsh, I openly welcome debate.
Bottom line: The ADAURA trial lays bare deeper problems with clinical trial design, and I would challenge readers to reflect on our clinical trial culture in oncology, which offers a system of rules that rewards denying the best identified care for patients on our clinical trials.
At the very least, should we celebrate these wins without fully acknowledging these problems?
Dr. West is clinical associate professor, department of medical oncology, City of Hope Comprehensive Cancer Care, Duarte, Calif. He reported conflicts of interest with Bristol-Myers Squibb, Boehringer Ingelheim, Spectrum, AstraZeneca, Celgene, Genentech/Roche, Pfizer, Merck, and Eli Lilly.
A version of this article first appeared on Medscape.com.
Barry Bonds and Roger Clemens are two world-class baseball players who played well enough to earn enduring respect and admiration. However, their reputations have been permanently tainted by their use of performance-enhancing drugs. Although they are both undeniably gifted, we’ll never know where their natural talent ended and their unfair advantage began.
The medical oncology version of this scenario played out in front of our eyes at the ASCO 2023 Plenary Session featuring the ADAURA trial. In this case, the unfair advantage was clear: Nearly two-thirds of patients in the control arm did not cross over to a standard-of-care treatment at relapse.
The ADAURA trial tested the value of the third-generation oral EGFR inhibitor osimertinib vs. placebo for up to 3 years in patients with a resected stage IB-IIIA non–small cell lung cancer (NSCLC) harboring an activating EGFR mutation. Initially presented in the ASCO 2020 Plenary Session, the preliminary analysis for ADAURA demonstrated a remarkably favorable improvement in disease-free survival (DFS) in the osimertinib arm, which led to its prompt Food and Drug Administration approval in this setting.
At the time, I was among the more vocal critics of the fanfare around this trial. The DFS improvement was impressive but, in this context, represented a low threshold for FDA approval. We already knew that prior trials of other, less effective adjuvant EGFR inhibitors routinely improved DFS but ultimately failed to improve overall survival.
Although in some cases, a DFS benefit can be sufficient to warrant changing practice, I would argue that overall survival is the most critical endpoint in a curative setting by a wide margin. I would also argue that cost should be a consideration for a drug priced at $440,000 over 3 years in the United States. At the very least, we – patients, oncologists, payers – should want to clarify what we get for $440,000 per patient, especially if that money could be better spent on other things.
Of note, we need to know whether the same overall survival may be achieved in this setting by treating only patients whose disease relapses, avoiding both the cost and toxicity of continuous treatment.
The relevance of this question became even more acute when an updated version of the ADAURA trial showed that the DFS benefit from osimertinib began to erode immediately after patients completed active treatment. Although the DFS benefit remained excellent,
The overall survival data – the critical test in my mind – were presented at the ASCO Plenary Session. The results were highly positive, with a hazard ratio for overall survival of 0.49 and a similar benefit observed across all eligible disease stages.
As with the presentation of the DFS data in 2020, these results were accompanied by adulation during the session and fawning in the media. However, a subset of people in the audience, and on Twitter, voiced a major concern: In the control arm, only 38.5% of the patients whose disease had relapsed (79 of 205) ever received osimertinib.
Post-protocol treatment included reassurances that patients in the control arm were offered crossover to osimertinib, but this only occurred starting in April 2020 and only when the treating investigator requested it.
The fact that only a minority of patients in the control arm ever received osimertinib means that ADAURA is not a trial that tests adjuvant osimertinib to osimertinib at relapse, the prevailing standard of care in the United States and the preferred treatment in this setting, based on NCCN guidelines for patients with relapsed/metastatic EGFR mutation–positive NSCLC since the FDA approval in April 2018.
The change in standard of care in the United States and some other countries did not lead to an amendment in the trial, based on the argument that the trial was designed with DFS as the primary endpoint and that patients in the control arm are effectively off trial at relapse. That means patients would receive their country’s standard of care, which may be below, or different from, the standard in the United States or other parts of the world.
While defensible, others considered the low rate of osimertinib delivery in the control arm a serious flaw in the trial design and arguably an ethical problem.
Given this trial design, it’s important to question whether the trial magnified the difference in overall survival between the two arms compared with the standard of care in countries where adjuvant osimertinib will ultimately be marketed. Although I strongly suspect that the overall survival difference would have been significant without the disparity in access to osimertinib in the control arm, we will never know the magnitude of that difference.
With the current design, the trial demonstrates that osimertinib is associated with improved survival in 100% of patients with EGFR mutation–positive NSCLC who receive the agent vs. 38.5% of patients receiving it at some point after relapse.
At the end of the day, ADAURA followed conventional trial rules, which led to a windfall of accolades at the cost of suboptimal care for many of the patients randomly assigned to the control arm.
We need to decide as an oncology community whether we want to accept a system that confers rewards for stakeholders at the expense of patients enrolled in the trial.
We have developed a system that not only permits but depends on global trials enrolling many patients from countries with staging and off-protocol oncology care below standards of care in other parts of the world – effectively condoning and perpetuating disparities in optimal care globally. I am also saddened that some of the most respected leaders in our field have become upset when I question the ethics of accepting this system, one that I believe we have agency to change.
The question here is not whether osimertinib is a good drug; it is remarkably effective for patients with EGFR mutation–positive NSCLC. The question is how to design trials in a fair and balanced way that doesn’t compromise patient care or ethical standards.
If people think my assessment is too harsh, I openly welcome debate.
Bottom line: The ADAURA trial lays bare deeper problems with clinical trial design, and I would challenge readers to reflect on our clinical trial culture in oncology, which offers a system of rules that rewards denying the best identified care for patients on our clinical trials.
At the very least, should we celebrate these wins without fully acknowledging these problems?
Dr. West is clinical associate professor, department of medical oncology, City of Hope Comprehensive Cancer Care, Duarte, Calif. He reported conflicts of interest with Bristol-Myers Squibb, Boehringer Ingelheim, Spectrum, AstraZeneca, Celgene, Genentech/Roche, Pfizer, Merck, and Eli Lilly.
A version of this article first appeared on Medscape.com.
Barry Bonds and Roger Clemens are two world-class baseball players who played well enough to earn enduring respect and admiration. However, their reputations have been permanently tainted by their use of performance-enhancing drugs. Although they are both undeniably gifted, we’ll never know where their natural talent ended and their unfair advantage began.
The medical oncology version of this scenario played out in front of our eyes at the ASCO 2023 Plenary Session featuring the ADAURA trial. In this case, the unfair advantage was clear: Nearly two-thirds of patients in the control arm did not cross over to a standard-of-care treatment at relapse.
The ADAURA trial tested the value of the third-generation oral EGFR inhibitor osimertinib vs. placebo for up to 3 years in patients with a resected stage IB-IIIA non–small cell lung cancer (NSCLC) harboring an activating EGFR mutation. Initially presented in the ASCO 2020 Plenary Session, the preliminary analysis for ADAURA demonstrated a remarkably favorable improvement in disease-free survival (DFS) in the osimertinib arm, which led to its prompt Food and Drug Administration approval in this setting.
At the time, I was among the more vocal critics of the fanfare around this trial. The DFS improvement was impressive but, in this context, represented a low threshold for FDA approval. We already knew that prior trials of other, less effective adjuvant EGFR inhibitors routinely improved DFS but ultimately failed to improve overall survival.
Although in some cases, a DFS benefit can be sufficient to warrant changing practice, I would argue that overall survival is the most critical endpoint in a curative setting by a wide margin. I would also argue that cost should be a consideration for a drug priced at $440,000 over 3 years in the United States. At the very least, we – patients, oncologists, payers – should want to clarify what we get for $440,000 per patient, especially if that money could be better spent on other things.
Of note, we need to know whether the same overall survival may be achieved in this setting by treating only patients whose disease relapses, avoiding both the cost and toxicity of continuous treatment.
The relevance of this question became even more acute when an updated version of the ADAURA trial showed that the DFS benefit from osimertinib began to erode immediately after patients completed active treatment. Although the DFS benefit remained excellent,
The overall survival data – the critical test in my mind – were presented at the ASCO Plenary Session. The results were highly positive, with a hazard ratio for overall survival of 0.49 and a similar benefit observed across all eligible disease stages.
As with the presentation of the DFS data in 2020, these results were accompanied by adulation during the session and fawning in the media. However, a subset of people in the audience, and on Twitter, voiced a major concern: In the control arm, only 38.5% of the patients whose disease had relapsed (79 of 205) ever received osimertinib.
Post-protocol treatment included reassurances that patients in the control arm were offered crossover to osimertinib, but this only occurred starting in April 2020 and only when the treating investigator requested it.
The fact that only a minority of patients in the control arm ever received osimertinib means that ADAURA is not a trial that tests adjuvant osimertinib to osimertinib at relapse, the prevailing standard of care in the United States and the preferred treatment in this setting, based on NCCN guidelines for patients with relapsed/metastatic EGFR mutation–positive NSCLC since the FDA approval in April 2018.
The change in standard of care in the United States and some other countries did not lead to an amendment in the trial, based on the argument that the trial was designed with DFS as the primary endpoint and that patients in the control arm are effectively off trial at relapse. That means patients would receive their country’s standard of care, which may be below, or different from, the standard in the United States or other parts of the world.
While defensible, others considered the low rate of osimertinib delivery in the control arm a serious flaw in the trial design and arguably an ethical problem.
Given this trial design, it’s important to question whether the trial magnified the difference in overall survival between the two arms compared with the standard of care in countries where adjuvant osimertinib will ultimately be marketed. Although I strongly suspect that the overall survival difference would have been significant without the disparity in access to osimertinib in the control arm, we will never know the magnitude of that difference.
With the current design, the trial demonstrates that osimertinib is associated with improved survival in 100% of patients with EGFR mutation–positive NSCLC who receive the agent vs. 38.5% of patients receiving it at some point after relapse.
At the end of the day, ADAURA followed conventional trial rules, which led to a windfall of accolades at the cost of suboptimal care for many of the patients randomly assigned to the control arm.
We need to decide as an oncology community whether we want to accept a system that confers rewards for stakeholders at the expense of patients enrolled in the trial.
We have developed a system that not only permits but depends on global trials enrolling many patients from countries with staging and off-protocol oncology care below standards of care in other parts of the world – effectively condoning and perpetuating disparities in optimal care globally. I am also saddened that some of the most respected leaders in our field have become upset when I question the ethics of accepting this system, one that I believe we have agency to change.
The question here is not whether osimertinib is a good drug; it is remarkably effective for patients with EGFR mutation–positive NSCLC. The question is how to design trials in a fair and balanced way that doesn’t compromise patient care or ethical standards.
If people think my assessment is too harsh, I openly welcome debate.
Bottom line: The ADAURA trial lays bare deeper problems with clinical trial design, and I would challenge readers to reflect on our clinical trial culture in oncology, which offers a system of rules that rewards denying the best identified care for patients on our clinical trials.
At the very least, should we celebrate these wins without fully acknowledging these problems?
Dr. West is clinical associate professor, department of medical oncology, City of Hope Comprehensive Cancer Care, Duarte, Calif. He reported conflicts of interest with Bristol-Myers Squibb, Boehringer Ingelheim, Spectrum, AstraZeneca, Celgene, Genentech/Roche, Pfizer, Merck, and Eli Lilly.
A version of this article first appeared on Medscape.com.
When practice-changing results don’t change practice
The highly favorable results of the CheckMate 816 trial of neoadjuvant chemotherapy plus nivolumab for resectable stage IB-IIIA non–small cell lung cancer (NSCLC) were impressive enough to prompt a Food and Drug Administration approval of this combination in March 2022.
For many, this led to a marked shift in how we approached these patients. But in my conversations with many care teams, they have expressed ambivalence about using the chemoimmunotherapy regimen. Some have conveyed to me that the lack of statistically significant improvement in overall survival is a sticking point. Others have expressed uncertainty about the true benefit of neoadjuvant chemotherapy alongside nivolumab for patients with earlier-stage disease, given that 64% of patients in the trial had stage IIIA disease. The benefit of the neoadjuvant combination in patients with low or negative tumor programmed death–ligand 1 (PD-L1) expression also remains a question mark, though the trial found no significant differences in outcomes by PD-L1 subset.
But among many of my colleagues who favor adjuvant over neoadjuvant therapy, it isn’t necessarily the fine points of the data that present the real barrier: it’s the sentiment that “we just don’t favor a neoadjuvant approach at my place.”
If the worry is that a subset of patients who are eligible for up-front surgery may be derailed from the operating room if they experience significant disease progression or a complication during preoperative therapy or that surgery will more difficult after chemoimmunotherapy, those concerns are not supported by evidence. In fact, data on surgical outcomes from CheckMate 816 assessing these issues found that surgery after chemoimmunotherapy was approximately 30 minutes faster than it was after chemotherapy alone. In addition, the combination neoadjuvant chemoimmunotherapy approach was associated with less extensive surgeries, particularly for patients with stage IIIA NSCLC, and patients experienced measurably lower reports of pain and dyspnea as well.
Though postoperative systemic therapy has been our general approach for resectable NSCLC for nearly 2 decades, there are several reasons to focus on neoadjuvant therapy.
First, immunotherapy may work more effectively when the tumor antigens as well as lymph nodes and lymphatic system are present in situ at the time.
Second, patients may be eager to complete their treatment within a 3-month period of just three cycles of systemic therapy followed by surgery rather than receiving their treatment over a prolonged chapter of their lives, starting with surgery followed by four cycles of chemotherapy and 1 year of immunotherapy.
Finally, we can’t ignore the fact that most neoadjuvant therapy is delivered exactly as intended, whereas planned adjuvant therapy is often not started or rarely completed as designed. At most, only about half of appropriate patients for adjuvant chemotherapy even start it, and far less complete a full four cycles or go on to complete prolonged adjuvant immunotherapy.
We also can’t underestimate the value of imaging and pathology findings after patients have completed neoadjuvant therapy. The pathologic complete response rate in CheckMate 816 is predictive of improved event-free survival over time.
And that isn’t just a binary variable of achieving a pathologic complete response or not. The degree of residual, viable tumor after surgery is a continuous variable associated along a spectrum with event-free survival. Our colleagues who treat breast cancer have been able to customize postoperative therapy to improve outcomes on the basis of the results achieved with neoadjuvant therapy. Multidisciplinary gastrointestinal oncology teams have revolutionized outcomes with rectal cancer by transitioning to total neoadjuvant therapy that makes it possible to deliver treatment more reliably and pursue organ-sparing approaches while achieving better survival.
Putting all of this together, I appreciate arguments against the generalizability or the maturity of the data supporting neoadjuvant chemoimmunotherapy for resectable NSCLC. However, sidestepping our most promising advances will harm our patients. Plus, what’s the point of generating practice-changing results if we don’t accept and implement them?
We owe it to our patients to follow the evolving evidence and not just stick to what we’ve always done.
Dr. West is an associate professor at City of Hope Comprehensive Cancer Center in Duarte, Calif., and vice president of network strategy at AccessHope in Los Angeles. Dr. West serves as web editor for JAMA Oncology, edits and writes several sections on lung cancer for UpToDate, and leads a wide range of continuing medical education and other educational programs.
A version of this article first appeared on Medscape.com.
The highly favorable results of the CheckMate 816 trial of neoadjuvant chemotherapy plus nivolumab for resectable stage IB-IIIA non–small cell lung cancer (NSCLC) were impressive enough to prompt a Food and Drug Administration approval of this combination in March 2022.
For many, this led to a marked shift in how we approached these patients. But in my conversations with many care teams, they have expressed ambivalence about using the chemoimmunotherapy regimen. Some have conveyed to me that the lack of statistically significant improvement in overall survival is a sticking point. Others have expressed uncertainty about the true benefit of neoadjuvant chemotherapy alongside nivolumab for patients with earlier-stage disease, given that 64% of patients in the trial had stage IIIA disease. The benefit of the neoadjuvant combination in patients with low or negative tumor programmed death–ligand 1 (PD-L1) expression also remains a question mark, though the trial found no significant differences in outcomes by PD-L1 subset.
But among many of my colleagues who favor adjuvant over neoadjuvant therapy, it isn’t necessarily the fine points of the data that present the real barrier: it’s the sentiment that “we just don’t favor a neoadjuvant approach at my place.”
If the worry is that a subset of patients who are eligible for up-front surgery may be derailed from the operating room if they experience significant disease progression or a complication during preoperative therapy or that surgery will more difficult after chemoimmunotherapy, those concerns are not supported by evidence. In fact, data on surgical outcomes from CheckMate 816 assessing these issues found that surgery after chemoimmunotherapy was approximately 30 minutes faster than it was after chemotherapy alone. In addition, the combination neoadjuvant chemoimmunotherapy approach was associated with less extensive surgeries, particularly for patients with stage IIIA NSCLC, and patients experienced measurably lower reports of pain and dyspnea as well.
Though postoperative systemic therapy has been our general approach for resectable NSCLC for nearly 2 decades, there are several reasons to focus on neoadjuvant therapy.
First, immunotherapy may work more effectively when the tumor antigens as well as lymph nodes and lymphatic system are present in situ at the time.
Second, patients may be eager to complete their treatment within a 3-month period of just three cycles of systemic therapy followed by surgery rather than receiving their treatment over a prolonged chapter of their lives, starting with surgery followed by four cycles of chemotherapy and 1 year of immunotherapy.
Finally, we can’t ignore the fact that most neoadjuvant therapy is delivered exactly as intended, whereas planned adjuvant therapy is often not started or rarely completed as designed. At most, only about half of appropriate patients for adjuvant chemotherapy even start it, and far less complete a full four cycles or go on to complete prolonged adjuvant immunotherapy.
We also can’t underestimate the value of imaging and pathology findings after patients have completed neoadjuvant therapy. The pathologic complete response rate in CheckMate 816 is predictive of improved event-free survival over time.
And that isn’t just a binary variable of achieving a pathologic complete response or not. The degree of residual, viable tumor after surgery is a continuous variable associated along a spectrum with event-free survival. Our colleagues who treat breast cancer have been able to customize postoperative therapy to improve outcomes on the basis of the results achieved with neoadjuvant therapy. Multidisciplinary gastrointestinal oncology teams have revolutionized outcomes with rectal cancer by transitioning to total neoadjuvant therapy that makes it possible to deliver treatment more reliably and pursue organ-sparing approaches while achieving better survival.
Putting all of this together, I appreciate arguments against the generalizability or the maturity of the data supporting neoadjuvant chemoimmunotherapy for resectable NSCLC. However, sidestepping our most promising advances will harm our patients. Plus, what’s the point of generating practice-changing results if we don’t accept and implement them?
We owe it to our patients to follow the evolving evidence and not just stick to what we’ve always done.
Dr. West is an associate professor at City of Hope Comprehensive Cancer Center in Duarte, Calif., and vice president of network strategy at AccessHope in Los Angeles. Dr. West serves as web editor for JAMA Oncology, edits and writes several sections on lung cancer for UpToDate, and leads a wide range of continuing medical education and other educational programs.
A version of this article first appeared on Medscape.com.
The highly favorable results of the CheckMate 816 trial of neoadjuvant chemotherapy plus nivolumab for resectable stage IB-IIIA non–small cell lung cancer (NSCLC) were impressive enough to prompt a Food and Drug Administration approval of this combination in March 2022.
For many, this led to a marked shift in how we approached these patients. But in my conversations with many care teams, they have expressed ambivalence about using the chemoimmunotherapy regimen. Some have conveyed to me that the lack of statistically significant improvement in overall survival is a sticking point. Others have expressed uncertainty about the true benefit of neoadjuvant chemotherapy alongside nivolumab for patients with earlier-stage disease, given that 64% of patients in the trial had stage IIIA disease. The benefit of the neoadjuvant combination in patients with low or negative tumor programmed death–ligand 1 (PD-L1) expression also remains a question mark, though the trial found no significant differences in outcomes by PD-L1 subset.
But among many of my colleagues who favor adjuvant over neoadjuvant therapy, it isn’t necessarily the fine points of the data that present the real barrier: it’s the sentiment that “we just don’t favor a neoadjuvant approach at my place.”
If the worry is that a subset of patients who are eligible for up-front surgery may be derailed from the operating room if they experience significant disease progression or a complication during preoperative therapy or that surgery will more difficult after chemoimmunotherapy, those concerns are not supported by evidence. In fact, data on surgical outcomes from CheckMate 816 assessing these issues found that surgery after chemoimmunotherapy was approximately 30 minutes faster than it was after chemotherapy alone. In addition, the combination neoadjuvant chemoimmunotherapy approach was associated with less extensive surgeries, particularly for patients with stage IIIA NSCLC, and patients experienced measurably lower reports of pain and dyspnea as well.
Though postoperative systemic therapy has been our general approach for resectable NSCLC for nearly 2 decades, there are several reasons to focus on neoadjuvant therapy.
First, immunotherapy may work more effectively when the tumor antigens as well as lymph nodes and lymphatic system are present in situ at the time.
Second, patients may be eager to complete their treatment within a 3-month period of just three cycles of systemic therapy followed by surgery rather than receiving their treatment over a prolonged chapter of their lives, starting with surgery followed by four cycles of chemotherapy and 1 year of immunotherapy.
Finally, we can’t ignore the fact that most neoadjuvant therapy is delivered exactly as intended, whereas planned adjuvant therapy is often not started or rarely completed as designed. At most, only about half of appropriate patients for adjuvant chemotherapy even start it, and far less complete a full four cycles or go on to complete prolonged adjuvant immunotherapy.
We also can’t underestimate the value of imaging and pathology findings after patients have completed neoadjuvant therapy. The pathologic complete response rate in CheckMate 816 is predictive of improved event-free survival over time.
And that isn’t just a binary variable of achieving a pathologic complete response or not. The degree of residual, viable tumor after surgery is a continuous variable associated along a spectrum with event-free survival. Our colleagues who treat breast cancer have been able to customize postoperative therapy to improve outcomes on the basis of the results achieved with neoadjuvant therapy. Multidisciplinary gastrointestinal oncology teams have revolutionized outcomes with rectal cancer by transitioning to total neoadjuvant therapy that makes it possible to deliver treatment more reliably and pursue organ-sparing approaches while achieving better survival.
Putting all of this together, I appreciate arguments against the generalizability or the maturity of the data supporting neoadjuvant chemoimmunotherapy for resectable NSCLC. However, sidestepping our most promising advances will harm our patients. Plus, what’s the point of generating practice-changing results if we don’t accept and implement them?
We owe it to our patients to follow the evolving evidence and not just stick to what we’ve always done.
Dr. West is an associate professor at City of Hope Comprehensive Cancer Center in Duarte, Calif., and vice president of network strategy at AccessHope in Los Angeles. Dr. West serves as web editor for JAMA Oncology, edits and writes several sections on lung cancer for UpToDate, and leads a wide range of continuing medical education and other educational programs.
A version of this article first appeared on Medscape.com.
Local therapies show promise for metastatic lung cancer
“Don’t close the barn door after the horse is gone,” the old proverb goes. In other words, there’s no sense in trying to prevent something when it’s already too late.
In many ways and for many years, this saying has applied to providing local therapies to treat cancers that have metastasized to distant sites. I learned this lesson early on from my mentors and have relayed it to countless patients with advanced cancer over the past several decades.
But a growing body of evidence, alongside promising new therapies, highlights more and more exceptions to this long-held belief.
This concept was outlined decades ago for oligometastatic disease and has since been studied in greater depth, and is even being applied in practice. Local therapy for colorectal cancer with limited liver-only metastases is now established as a path to potentially excellent long-term survival. And prospective randomized trials of local therapies for oligometastatic lung cancer or prostate cancer have also demonstrated improvements in clinical outcomes that should lead us to strongly consider integrating local therapy for appropriately selected patients.
In addition, early retrospective studies have provided a proof of principle that patients with solitary brain or adrenal metastases from non–small cell lung cancer (NSCLC) can do exceptionally well and even remain disease-free for many years after definitive local therapy to the primary tumor and oligometastatic disease. For example, a recent press release on the LUNAR trial reported an improvement in overall survival with tumor-treating fields (TTFs), a local therapy, compared with docetaxel as second-line therapy for patients with advanced NSCLC.
That said, the selection process for who receives local therapy remains subjective. In practice, I see patients who fall well outside of conventional oligometastatic parameters but who are directed to local therapy, commonly when systemic therapy is considered futile or prohibitively toxic.
At the same time, however, I also see many patients who would be appropriate candidates for local therapy for oligometastatic disease for whom this strategy is not pursued, perhaps because some oncologists remain dubious about the value of local therapy in this setting. And although we await the full data from the LUNAR trial, I would expect TTFs to face challenges in broad adoption because it is a novel platform with cumbersome practical application, particularly outside of larger centers.
But beyond the potential for TTFs to change management of previously treated advanced NSCLC, I think the findings are more significant because they represent a step, perhaps even a quantum leap, in the role that local therapy could play in improving survival in a broad, unselected population with advanced disease. That is a far more meaningful prospect than conferring benefits in well-selected patients with a narrow subtype of lung cancer. It will be important to determine whether certain subgroups from the LUNAR trial are driving this overall survival benefit.
Local therapy may even have value in the advanced cancer setting beyond oligometastatic disease. That potential is being explored in the SABR-COMET-10 trial, which randomly assigned 159 patients with 4-10 metastatic lesions from various cancers to stereotactic ablative body radiation with standard systemic therapy or the latter alone. With overall survival as the primary endpoint, this study could further revise our understanding of the use of local therapy for treating patients whose cancer biology does not fit the definition of oligometastatic disease.
Does this evolving landscape mean that we were wrong to minimize the role of local therapy?
I don’t think so. The risk/benefit of local therapy today is predicated on two key factors that were absent a few decades ago. First, local therapies such as stereotactic ablative body radiation, minimally invasive surgery, and TTFs now offer disease control with far less attendant toxicity than conventional external beam radiation therapy or open surgery. Second, newer systemic therapies that include targeted therapies and immunotherapy confer remarkably greater disease control for far more patients than does conventional chemotherapy alone.
It is this combination of local therapy’s excellent therapeutic index applied against a background of far better systemic disease control that makes the interplay of local and systemic treatments a newly relevant, open question.
We have yet to see the details of several pivotal trials, but I feel that we should be prepared to question some of the historic dogma in our field to achieve better outcomes not just for selected, narrow subgroups but for a broader population with different types of metastatic cancer.
Dr. West is clinical associate professor, department of medical oncology, City of Hope Comprehensive Cancer Care, Duarte, Calif. He disclosed ties with Ariad/Takeda, AstraZeneca, Boehringer Ingelheim, Bristol Myers Squibb, Celgene, Eli Lilly, Genentech/Roche, Merck, Pfizer, and Spectrum. A version of this article originally appeared on Medscape.com.
“Don’t close the barn door after the horse is gone,” the old proverb goes. In other words, there’s no sense in trying to prevent something when it’s already too late.
In many ways and for many years, this saying has applied to providing local therapies to treat cancers that have metastasized to distant sites. I learned this lesson early on from my mentors and have relayed it to countless patients with advanced cancer over the past several decades.
But a growing body of evidence, alongside promising new therapies, highlights more and more exceptions to this long-held belief.
This concept was outlined decades ago for oligometastatic disease and has since been studied in greater depth, and is even being applied in practice. Local therapy for colorectal cancer with limited liver-only metastases is now established as a path to potentially excellent long-term survival. And prospective randomized trials of local therapies for oligometastatic lung cancer or prostate cancer have also demonstrated improvements in clinical outcomes that should lead us to strongly consider integrating local therapy for appropriately selected patients.
In addition, early retrospective studies have provided a proof of principle that patients with solitary brain or adrenal metastases from non–small cell lung cancer (NSCLC) can do exceptionally well and even remain disease-free for many years after definitive local therapy to the primary tumor and oligometastatic disease. For example, a recent press release on the LUNAR trial reported an improvement in overall survival with tumor-treating fields (TTFs), a local therapy, compared with docetaxel as second-line therapy for patients with advanced NSCLC.
That said, the selection process for who receives local therapy remains subjective. In practice, I see patients who fall well outside of conventional oligometastatic parameters but who are directed to local therapy, commonly when systemic therapy is considered futile or prohibitively toxic.
At the same time, however, I also see many patients who would be appropriate candidates for local therapy for oligometastatic disease for whom this strategy is not pursued, perhaps because some oncologists remain dubious about the value of local therapy in this setting. And although we await the full data from the LUNAR trial, I would expect TTFs to face challenges in broad adoption because it is a novel platform with cumbersome practical application, particularly outside of larger centers.
But beyond the potential for TTFs to change management of previously treated advanced NSCLC, I think the findings are more significant because they represent a step, perhaps even a quantum leap, in the role that local therapy could play in improving survival in a broad, unselected population with advanced disease. That is a far more meaningful prospect than conferring benefits in well-selected patients with a narrow subtype of lung cancer. It will be important to determine whether certain subgroups from the LUNAR trial are driving this overall survival benefit.
Local therapy may even have value in the advanced cancer setting beyond oligometastatic disease. That potential is being explored in the SABR-COMET-10 trial, which randomly assigned 159 patients with 4-10 metastatic lesions from various cancers to stereotactic ablative body radiation with standard systemic therapy or the latter alone. With overall survival as the primary endpoint, this study could further revise our understanding of the use of local therapy for treating patients whose cancer biology does not fit the definition of oligometastatic disease.
Does this evolving landscape mean that we were wrong to minimize the role of local therapy?
I don’t think so. The risk/benefit of local therapy today is predicated on two key factors that were absent a few decades ago. First, local therapies such as stereotactic ablative body radiation, minimally invasive surgery, and TTFs now offer disease control with far less attendant toxicity than conventional external beam radiation therapy or open surgery. Second, newer systemic therapies that include targeted therapies and immunotherapy confer remarkably greater disease control for far more patients than does conventional chemotherapy alone.
It is this combination of local therapy’s excellent therapeutic index applied against a background of far better systemic disease control that makes the interplay of local and systemic treatments a newly relevant, open question.
We have yet to see the details of several pivotal trials, but I feel that we should be prepared to question some of the historic dogma in our field to achieve better outcomes not just for selected, narrow subgroups but for a broader population with different types of metastatic cancer.
Dr. West is clinical associate professor, department of medical oncology, City of Hope Comprehensive Cancer Care, Duarte, Calif. He disclosed ties with Ariad/Takeda, AstraZeneca, Boehringer Ingelheim, Bristol Myers Squibb, Celgene, Eli Lilly, Genentech/Roche, Merck, Pfizer, and Spectrum. A version of this article originally appeared on Medscape.com.
“Don’t close the barn door after the horse is gone,” the old proverb goes. In other words, there’s no sense in trying to prevent something when it’s already too late.
In many ways and for many years, this saying has applied to providing local therapies to treat cancers that have metastasized to distant sites. I learned this lesson early on from my mentors and have relayed it to countless patients with advanced cancer over the past several decades.
But a growing body of evidence, alongside promising new therapies, highlights more and more exceptions to this long-held belief.
This concept was outlined decades ago for oligometastatic disease and has since been studied in greater depth, and is even being applied in practice. Local therapy for colorectal cancer with limited liver-only metastases is now established as a path to potentially excellent long-term survival. And prospective randomized trials of local therapies for oligometastatic lung cancer or prostate cancer have also demonstrated improvements in clinical outcomes that should lead us to strongly consider integrating local therapy for appropriately selected patients.
In addition, early retrospective studies have provided a proof of principle that patients with solitary brain or adrenal metastases from non–small cell lung cancer (NSCLC) can do exceptionally well and even remain disease-free for many years after definitive local therapy to the primary tumor and oligometastatic disease. For example, a recent press release on the LUNAR trial reported an improvement in overall survival with tumor-treating fields (TTFs), a local therapy, compared with docetaxel as second-line therapy for patients with advanced NSCLC.
That said, the selection process for who receives local therapy remains subjective. In practice, I see patients who fall well outside of conventional oligometastatic parameters but who are directed to local therapy, commonly when systemic therapy is considered futile or prohibitively toxic.
At the same time, however, I also see many patients who would be appropriate candidates for local therapy for oligometastatic disease for whom this strategy is not pursued, perhaps because some oncologists remain dubious about the value of local therapy in this setting. And although we await the full data from the LUNAR trial, I would expect TTFs to face challenges in broad adoption because it is a novel platform with cumbersome practical application, particularly outside of larger centers.
But beyond the potential for TTFs to change management of previously treated advanced NSCLC, I think the findings are more significant because they represent a step, perhaps even a quantum leap, in the role that local therapy could play in improving survival in a broad, unselected population with advanced disease. That is a far more meaningful prospect than conferring benefits in well-selected patients with a narrow subtype of lung cancer. It will be important to determine whether certain subgroups from the LUNAR trial are driving this overall survival benefit.
Local therapy may even have value in the advanced cancer setting beyond oligometastatic disease. That potential is being explored in the SABR-COMET-10 trial, which randomly assigned 159 patients with 4-10 metastatic lesions from various cancers to stereotactic ablative body radiation with standard systemic therapy or the latter alone. With overall survival as the primary endpoint, this study could further revise our understanding of the use of local therapy for treating patients whose cancer biology does not fit the definition of oligometastatic disease.
Does this evolving landscape mean that we were wrong to minimize the role of local therapy?
I don’t think so. The risk/benefit of local therapy today is predicated on two key factors that were absent a few decades ago. First, local therapies such as stereotactic ablative body radiation, minimally invasive surgery, and TTFs now offer disease control with far less attendant toxicity than conventional external beam radiation therapy or open surgery. Second, newer systemic therapies that include targeted therapies and immunotherapy confer remarkably greater disease control for far more patients than does conventional chemotherapy alone.
It is this combination of local therapy’s excellent therapeutic index applied against a background of far better systemic disease control that makes the interplay of local and systemic treatments a newly relevant, open question.
We have yet to see the details of several pivotal trials, but I feel that we should be prepared to question some of the historic dogma in our field to achieve better outcomes not just for selected, narrow subgroups but for a broader population with different types of metastatic cancer.
Dr. West is clinical associate professor, department of medical oncology, City of Hope Comprehensive Cancer Care, Duarte, Calif. He disclosed ties with Ariad/Takeda, AstraZeneca, Boehringer Ingelheim, Bristol Myers Squibb, Celgene, Eli Lilly, Genentech/Roche, Merck, Pfizer, and Spectrum. A version of this article originally appeared on Medscape.com.
Advances in Non–Small Cell Lung Cancer From SITC 2022
Dr Jack West, from City of Hope Comprehensive Cancer Center, Duarte, California, gives his picks of noteworthy advances in non–small cell lung cancer (NSCLC) presented at the 37th Annual Meeting of the Society for Immunotherapy of Cancer.
Dr West starts by discussing data from a real-world analysis of patients who had undergone next-generation sequencing and received a variety of treatments. This revealed that those with KRAS mutations, alongside STK11 and KEAP1 mutations, had worse outcomes.
Next, he reports on a genomic study indicating that acquired resistance mechanisms affecting a range of genes were unique to immunotherapy and were not seen with chemotherapy or targeted therapies.
Dr West moves on to KEYNOTE-495, which found that NSCLC patients with a favorable gene expression profile and low tumor mutational burden had the greatest response to combination therapy with pembrolizumab and lenvatinib.
The LAG-3 inhibitor eftilagimod alpha in combination with pembrolizumab was examined in the next study, which showed that PD-L1 expression was related to response rates.
Dr West closes by discussing a talk that made the case for neoadjuvant over adjuvant immunotherapy in lung cancer and other settings.
--
Associate Professor, Department of Medical Oncology, City of Hope Comprehensive Cancer Center, Duarte, California; Vice President, Network Strategy, AccessHope, Los Angeles, California
H. Jack West, MD, has disclosed the following relevant financial relationships:
Serve(d) as a director, officer, partner, employee, advisor, consultant, or trustee for: Amgen; AstraZeneca; Genentech/Roche; Merck; Mirati; Regeneron; Takeda
Serve(d) as a speaker or a member of a speakers bureau for: Amgen; AstraZeneca; Merck
Dr Jack West, from City of Hope Comprehensive Cancer Center, Duarte, California, gives his picks of noteworthy advances in non–small cell lung cancer (NSCLC) presented at the 37th Annual Meeting of the Society for Immunotherapy of Cancer.
Dr West starts by discussing data from a real-world analysis of patients who had undergone next-generation sequencing and received a variety of treatments. This revealed that those with KRAS mutations, alongside STK11 and KEAP1 mutations, had worse outcomes.
Next, he reports on a genomic study indicating that acquired resistance mechanisms affecting a range of genes were unique to immunotherapy and were not seen with chemotherapy or targeted therapies.
Dr West moves on to KEYNOTE-495, which found that NSCLC patients with a favorable gene expression profile and low tumor mutational burden had the greatest response to combination therapy with pembrolizumab and lenvatinib.
The LAG-3 inhibitor eftilagimod alpha in combination with pembrolizumab was examined in the next study, which showed that PD-L1 expression was related to response rates.
Dr West closes by discussing a talk that made the case for neoadjuvant over adjuvant immunotherapy in lung cancer and other settings.
--
Associate Professor, Department of Medical Oncology, City of Hope Comprehensive Cancer Center, Duarte, California; Vice President, Network Strategy, AccessHope, Los Angeles, California
H. Jack West, MD, has disclosed the following relevant financial relationships:
Serve(d) as a director, officer, partner, employee, advisor, consultant, or trustee for: Amgen; AstraZeneca; Genentech/Roche; Merck; Mirati; Regeneron; Takeda
Serve(d) as a speaker or a member of a speakers bureau for: Amgen; AstraZeneca; Merck
Dr Jack West, from City of Hope Comprehensive Cancer Center, Duarte, California, gives his picks of noteworthy advances in non–small cell lung cancer (NSCLC) presented at the 37th Annual Meeting of the Society for Immunotherapy of Cancer.
Dr West starts by discussing data from a real-world analysis of patients who had undergone next-generation sequencing and received a variety of treatments. This revealed that those with KRAS mutations, alongside STK11 and KEAP1 mutations, had worse outcomes.
Next, he reports on a genomic study indicating that acquired resistance mechanisms affecting a range of genes were unique to immunotherapy and were not seen with chemotherapy or targeted therapies.
Dr West moves on to KEYNOTE-495, which found that NSCLC patients with a favorable gene expression profile and low tumor mutational burden had the greatest response to combination therapy with pembrolizumab and lenvatinib.
The LAG-3 inhibitor eftilagimod alpha in combination with pembrolizumab was examined in the next study, which showed that PD-L1 expression was related to response rates.
Dr West closes by discussing a talk that made the case for neoadjuvant over adjuvant immunotherapy in lung cancer and other settings.
--
Associate Professor, Department of Medical Oncology, City of Hope Comprehensive Cancer Center, Duarte, California; Vice President, Network Strategy, AccessHope, Los Angeles, California
H. Jack West, MD, has disclosed the following relevant financial relationships:
Serve(d) as a director, officer, partner, employee, advisor, consultant, or trustee for: Amgen; AstraZeneca; Genentech/Roche; Merck; Mirati; Regeneron; Takeda
Serve(d) as a speaker or a member of a speakers bureau for: Amgen; AstraZeneca; Merck
Discontinuing immunotherapy: Is the infusion bag half empty or half full?
It’s a “champagne problem” many of us have encountered over the past few years in the clinic.
A patient with advanced non–small cell lung cancer (NSCLC) is fortunate enough to continue to do well for 2 years on ongoing pembrolizumab or perhaps pemetrexed and pembrolizumab as maintenance therapy. The latest CT shows a residual but far smaller primary tumor than what she started with.
In this instance, you may be considering stopping treatment but are concerned about doing so with evidence of disease still present.
Clinical trials of immunotherapy or chemoimmunotherapy have generally terminated treatment in nonprogressing patients after 2 years. We also know that some patients in early trials of immunotherapy stopped treatment after a fixed period of 1 or 2 years and continued to show no evidence of progression many years later.
The reason some patients experience this kind of success: Unlike the mechanism of action of conventional chemotherapy or targeted therapies, where ongoing treatment would be important to continue to exert an inhibitory effect, the active substrate of immunotherapy is the patient’s immune system, which can potentially have a self-sustaining efficacy beyond the stimulatory effect of the checkpoint inhibitor.
One trial directly addressed this question of stopping vs. continuing treatment in patients on immunotherapy. The CheckMate 153 trial, published in 2020, randomly assigned 252 previously treated patients who hadn’t demonstrated progression after 1 year on nivolumab to either discontinue nivolumab or continue nivolumab on an ongoing basis. The results were strongly in favor of ongoing therapy. Both progression-free survival (PFS) and overall survival (OS) were significantly longer in patients who continued therapy: PFS of 24.7 months vs. 9.4 months and OS not reached vs. 32.5 months.
This finding is important, but there’s an important caveat. The study population included many heavily pretreated patients, but, in practice, immunotherapy has generally moved into the first-line setting, where we see dramatic responses in a significant subset of patients.
Even more recent data are emerging that may help us evaluate who will do well off therapy and who should continue treatment.
We now have a growing collection of long-term data on patients who are more likely to have good outcomes with immunotherapy, specifically those with high tumor programmed death-ligand 1 (PD-L1) expression (≥ 50%), from the KEYNOTE-024 trial. In this study, 39 of 151 (25.8%) patients assigned to pembrolizumab completed the planned maximum of 2 years of treatment, among whom 82.1% achieved an objective response; but, only 10% (4 patients) achieved a complete response. The proportion of patients without progression and remaining off therapy wasn’t reported, but the OS rate 3 years after completing treatment was 81.4%.
In addition, restarting immunotherapy after discontinuing appears to be a moderately effective strategy. In the KEYNOTE-024 trial, 12 patients received a second course of pembrolizumab because of disease progression a median of 15.2 months after discontinuing pembrolizumab. In this small cohort, eight of these patients (66.7%) were alive at the data cutoff, and six (50%) achieved stable disease.
Recently, we received additional insight in the follow-up from two chemoimmunotherapy trials that have most shaped my practice for patients with advanced NSCLC and any level of PD-L1 expression. These are the KEYNOTE-189 trial of platinum-pemetrexed with pembrolizumab vs. placebo in those with nonsquamous NSCLC, and the KEYNOTE-407 trial of carboplatin-taxane with pembrolizumab vs. placebo in patients with advanced squamous NSCLC. The National Comprehensive Cancer Network has designated each as a “preferred regimen” for patients with advanced NSCLC.
Both regimens have demonstrated sustained efficacy benefits with prolonged follow-up, including significantly superior objective response rate, PFS, and OS with the addition of pembrolizumab. These findings merely cemented the role of these regimens in our practice, but the trials also reported on the cohort of patients who completed 35 cycles of treatment over 2 years then discontinued therapy. In both, the majority of patients showed an objective response (86% in KEYNOTE-189 and 90% in KEYNOTE-407), with most patients alive at 3 years after 2 years of treatment (71.9% in KEYNOTE-189 and 69.5% in KEYNOTE-407). In addition, the proportion of patients alive without disease progression or subsequent therapy was notable – 40.4% in KEYNOTE-189 and 43.6% KEYNOTE-407.
How should we interpret these data for the patient who is in the exam room with us?
The short answer is that we don’t know. I see this as a half-empty, half-full conundrum.
I’m disappointed that more patients who responded for 2 years will experience disease progression in the 1-3 years that follow. This signals that their immune systems have not perpetuated their initial response over the long-term. But these patients may have demonstrated disease progression even if they had continued therapy.
We also know that some patients can be rechallenged and will respond again. Some of these patients will show stable disease, whereas others will progress with repeat treatment. I would love to be able to better predict which patients are destined to do well without treatment vs. those who benefit from treatment beyond 2 years.
Might the level of PD-L1 expression tell us? Can PET imaging discriminate those with residual hypermetabolism who may need continued treatment from those with no residual uptake who could be spared it? Would serial measurement of circulating tumor DNA (ctDNA) in responding patients identify when they have achieved a point of diminishing returns, potentially indicating that some can safely discontinue treatment after 2 years, whereas others need to continue to suppress on prolonged maintenance therapy?
These questions have yet to be studied systematically. In the meantime, I take an individualized approach with my patients facing this decision. Some have experienced escalating arthralgias and myalgias, cost concerns, or other issues related to immunotherapy that may dissuade us from continuing treatment. But several others have been grateful to continue with their treatment, hesitant to do anything that could change the path of their disease.
In my patients who tolerate therapy well, I’m more worried about potential undertreatment than overtreatment. I tend to favor having my patients continue therapy in the absence of problematic toxicity or practical challenges. There is certainly room for debate here while we await data to better guide these decisions. How do you approach these patients?
Dr. West is Clinical Associate Professor, Department of Medical Oncology, City of Hope Comprehensive Cancer Care, Duarte, Calif. He reported conflicts of interest with Ariad/Takeda, Bristol-Myers Squibb, Boehringer Ingelheim, Spectrum, AstraZeneca, Celgene, Genentech/Roche, Pfizer, Merck, and Eli Lilly.
A version of this article first appeared on Medscape.com.
It’s a “champagne problem” many of us have encountered over the past few years in the clinic.
A patient with advanced non–small cell lung cancer (NSCLC) is fortunate enough to continue to do well for 2 years on ongoing pembrolizumab or perhaps pemetrexed and pembrolizumab as maintenance therapy. The latest CT shows a residual but far smaller primary tumor than what she started with.
In this instance, you may be considering stopping treatment but are concerned about doing so with evidence of disease still present.
Clinical trials of immunotherapy or chemoimmunotherapy have generally terminated treatment in nonprogressing patients after 2 years. We also know that some patients in early trials of immunotherapy stopped treatment after a fixed period of 1 or 2 years and continued to show no evidence of progression many years later.
The reason some patients experience this kind of success: Unlike the mechanism of action of conventional chemotherapy or targeted therapies, where ongoing treatment would be important to continue to exert an inhibitory effect, the active substrate of immunotherapy is the patient’s immune system, which can potentially have a self-sustaining efficacy beyond the stimulatory effect of the checkpoint inhibitor.
One trial directly addressed this question of stopping vs. continuing treatment in patients on immunotherapy. The CheckMate 153 trial, published in 2020, randomly assigned 252 previously treated patients who hadn’t demonstrated progression after 1 year on nivolumab to either discontinue nivolumab or continue nivolumab on an ongoing basis. The results were strongly in favor of ongoing therapy. Both progression-free survival (PFS) and overall survival (OS) were significantly longer in patients who continued therapy: PFS of 24.7 months vs. 9.4 months and OS not reached vs. 32.5 months.
This finding is important, but there’s an important caveat. The study population included many heavily pretreated patients, but, in practice, immunotherapy has generally moved into the first-line setting, where we see dramatic responses in a significant subset of patients.
Even more recent data are emerging that may help us evaluate who will do well off therapy and who should continue treatment.
We now have a growing collection of long-term data on patients who are more likely to have good outcomes with immunotherapy, specifically those with high tumor programmed death-ligand 1 (PD-L1) expression (≥ 50%), from the KEYNOTE-024 trial. In this study, 39 of 151 (25.8%) patients assigned to pembrolizumab completed the planned maximum of 2 years of treatment, among whom 82.1% achieved an objective response; but, only 10% (4 patients) achieved a complete response. The proportion of patients without progression and remaining off therapy wasn’t reported, but the OS rate 3 years after completing treatment was 81.4%.
In addition, restarting immunotherapy after discontinuing appears to be a moderately effective strategy. In the KEYNOTE-024 trial, 12 patients received a second course of pembrolizumab because of disease progression a median of 15.2 months after discontinuing pembrolizumab. In this small cohort, eight of these patients (66.7%) were alive at the data cutoff, and six (50%) achieved stable disease.
Recently, we received additional insight in the follow-up from two chemoimmunotherapy trials that have most shaped my practice for patients with advanced NSCLC and any level of PD-L1 expression. These are the KEYNOTE-189 trial of platinum-pemetrexed with pembrolizumab vs. placebo in those with nonsquamous NSCLC, and the KEYNOTE-407 trial of carboplatin-taxane with pembrolizumab vs. placebo in patients with advanced squamous NSCLC. The National Comprehensive Cancer Network has designated each as a “preferred regimen” for patients with advanced NSCLC.
Both regimens have demonstrated sustained efficacy benefits with prolonged follow-up, including significantly superior objective response rate, PFS, and OS with the addition of pembrolizumab. These findings merely cemented the role of these regimens in our practice, but the trials also reported on the cohort of patients who completed 35 cycles of treatment over 2 years then discontinued therapy. In both, the majority of patients showed an objective response (86% in KEYNOTE-189 and 90% in KEYNOTE-407), with most patients alive at 3 years after 2 years of treatment (71.9% in KEYNOTE-189 and 69.5% in KEYNOTE-407). In addition, the proportion of patients alive without disease progression or subsequent therapy was notable – 40.4% in KEYNOTE-189 and 43.6% KEYNOTE-407.
How should we interpret these data for the patient who is in the exam room with us?
The short answer is that we don’t know. I see this as a half-empty, half-full conundrum.
I’m disappointed that more patients who responded for 2 years will experience disease progression in the 1-3 years that follow. This signals that their immune systems have not perpetuated their initial response over the long-term. But these patients may have demonstrated disease progression even if they had continued therapy.
We also know that some patients can be rechallenged and will respond again. Some of these patients will show stable disease, whereas others will progress with repeat treatment. I would love to be able to better predict which patients are destined to do well without treatment vs. those who benefit from treatment beyond 2 years.
Might the level of PD-L1 expression tell us? Can PET imaging discriminate those with residual hypermetabolism who may need continued treatment from those with no residual uptake who could be spared it? Would serial measurement of circulating tumor DNA (ctDNA) in responding patients identify when they have achieved a point of diminishing returns, potentially indicating that some can safely discontinue treatment after 2 years, whereas others need to continue to suppress on prolonged maintenance therapy?
These questions have yet to be studied systematically. In the meantime, I take an individualized approach with my patients facing this decision. Some have experienced escalating arthralgias and myalgias, cost concerns, or other issues related to immunotherapy that may dissuade us from continuing treatment. But several others have been grateful to continue with their treatment, hesitant to do anything that could change the path of their disease.
In my patients who tolerate therapy well, I’m more worried about potential undertreatment than overtreatment. I tend to favor having my patients continue therapy in the absence of problematic toxicity or practical challenges. There is certainly room for debate here while we await data to better guide these decisions. How do you approach these patients?
Dr. West is Clinical Associate Professor, Department of Medical Oncology, City of Hope Comprehensive Cancer Care, Duarte, Calif. He reported conflicts of interest with Ariad/Takeda, Bristol-Myers Squibb, Boehringer Ingelheim, Spectrum, AstraZeneca, Celgene, Genentech/Roche, Pfizer, Merck, and Eli Lilly.
A version of this article first appeared on Medscape.com.
It’s a “champagne problem” many of us have encountered over the past few years in the clinic.
A patient with advanced non–small cell lung cancer (NSCLC) is fortunate enough to continue to do well for 2 years on ongoing pembrolizumab or perhaps pemetrexed and pembrolizumab as maintenance therapy. The latest CT shows a residual but far smaller primary tumor than what she started with.
In this instance, you may be considering stopping treatment but are concerned about doing so with evidence of disease still present.
Clinical trials of immunotherapy or chemoimmunotherapy have generally terminated treatment in nonprogressing patients after 2 years. We also know that some patients in early trials of immunotherapy stopped treatment after a fixed period of 1 or 2 years and continued to show no evidence of progression many years later.
The reason some patients experience this kind of success: Unlike the mechanism of action of conventional chemotherapy or targeted therapies, where ongoing treatment would be important to continue to exert an inhibitory effect, the active substrate of immunotherapy is the patient’s immune system, which can potentially have a self-sustaining efficacy beyond the stimulatory effect of the checkpoint inhibitor.
One trial directly addressed this question of stopping vs. continuing treatment in patients on immunotherapy. The CheckMate 153 trial, published in 2020, randomly assigned 252 previously treated patients who hadn’t demonstrated progression after 1 year on nivolumab to either discontinue nivolumab or continue nivolumab on an ongoing basis. The results were strongly in favor of ongoing therapy. Both progression-free survival (PFS) and overall survival (OS) were significantly longer in patients who continued therapy: PFS of 24.7 months vs. 9.4 months and OS not reached vs. 32.5 months.
This finding is important, but there’s an important caveat. The study population included many heavily pretreated patients, but, in practice, immunotherapy has generally moved into the first-line setting, where we see dramatic responses in a significant subset of patients.
Even more recent data are emerging that may help us evaluate who will do well off therapy and who should continue treatment.
We now have a growing collection of long-term data on patients who are more likely to have good outcomes with immunotherapy, specifically those with high tumor programmed death-ligand 1 (PD-L1) expression (≥ 50%), from the KEYNOTE-024 trial. In this study, 39 of 151 (25.8%) patients assigned to pembrolizumab completed the planned maximum of 2 years of treatment, among whom 82.1% achieved an objective response; but, only 10% (4 patients) achieved a complete response. The proportion of patients without progression and remaining off therapy wasn’t reported, but the OS rate 3 years after completing treatment was 81.4%.
In addition, restarting immunotherapy after discontinuing appears to be a moderately effective strategy. In the KEYNOTE-024 trial, 12 patients received a second course of pembrolizumab because of disease progression a median of 15.2 months after discontinuing pembrolizumab. In this small cohort, eight of these patients (66.7%) were alive at the data cutoff, and six (50%) achieved stable disease.
Recently, we received additional insight in the follow-up from two chemoimmunotherapy trials that have most shaped my practice for patients with advanced NSCLC and any level of PD-L1 expression. These are the KEYNOTE-189 trial of platinum-pemetrexed with pembrolizumab vs. placebo in those with nonsquamous NSCLC, and the KEYNOTE-407 trial of carboplatin-taxane with pembrolizumab vs. placebo in patients with advanced squamous NSCLC. The National Comprehensive Cancer Network has designated each as a “preferred regimen” for patients with advanced NSCLC.
Both regimens have demonstrated sustained efficacy benefits with prolonged follow-up, including significantly superior objective response rate, PFS, and OS with the addition of pembrolizumab. These findings merely cemented the role of these regimens in our practice, but the trials also reported on the cohort of patients who completed 35 cycles of treatment over 2 years then discontinued therapy. In both, the majority of patients showed an objective response (86% in KEYNOTE-189 and 90% in KEYNOTE-407), with most patients alive at 3 years after 2 years of treatment (71.9% in KEYNOTE-189 and 69.5% in KEYNOTE-407). In addition, the proportion of patients alive without disease progression or subsequent therapy was notable – 40.4% in KEYNOTE-189 and 43.6% KEYNOTE-407.
How should we interpret these data for the patient who is in the exam room with us?
The short answer is that we don’t know. I see this as a half-empty, half-full conundrum.
I’m disappointed that more patients who responded for 2 years will experience disease progression in the 1-3 years that follow. This signals that their immune systems have not perpetuated their initial response over the long-term. But these patients may have demonstrated disease progression even if they had continued therapy.
We also know that some patients can be rechallenged and will respond again. Some of these patients will show stable disease, whereas others will progress with repeat treatment. I would love to be able to better predict which patients are destined to do well without treatment vs. those who benefit from treatment beyond 2 years.
Might the level of PD-L1 expression tell us? Can PET imaging discriminate those with residual hypermetabolism who may need continued treatment from those with no residual uptake who could be spared it? Would serial measurement of circulating tumor DNA (ctDNA) in responding patients identify when they have achieved a point of diminishing returns, potentially indicating that some can safely discontinue treatment after 2 years, whereas others need to continue to suppress on prolonged maintenance therapy?
These questions have yet to be studied systematically. In the meantime, I take an individualized approach with my patients facing this decision. Some have experienced escalating arthralgias and myalgias, cost concerns, or other issues related to immunotherapy that may dissuade us from continuing treatment. But several others have been grateful to continue with their treatment, hesitant to do anything that could change the path of their disease.
In my patients who tolerate therapy well, I’m more worried about potential undertreatment than overtreatment. I tend to favor having my patients continue therapy in the absence of problematic toxicity or practical challenges. There is certainly room for debate here while we await data to better guide these decisions. How do you approach these patients?
Dr. West is Clinical Associate Professor, Department of Medical Oncology, City of Hope Comprehensive Cancer Care, Duarte, Calif. He reported conflicts of interest with Ariad/Takeda, Bristol-Myers Squibb, Boehringer Ingelheim, Spectrum, AstraZeneca, Celgene, Genentech/Roche, Pfizer, Merck, and Eli Lilly.
A version of this article first appeared on Medscape.com.
Highlights in Advanced Non–Small Cell Lung Cancer From ESMO 2022
Highlights in advanced non–small lung cancer (NSCLC) from the 2022 European Society for Medical Oncology Congress are presented by Dr Jack West of City of Hope Comprehensive Cancer Center in Duarte, California.
Dr West begins by discussing CodeBreak 200, a study comparing sotorasib with docetaxel in previously treated patients with a KRAS G12C mutation. Sotorasib improved progression-free survival, but overall survival data are awaited.
Next, Dr West examines 5-year updates from KEYNOTE-189 and KEYNOTE-407, comparing pembrolizumab with chemotherapy in nonsquamous and squamous disease, respectively. Around two fifths of patients remained alive and disease-free 5 years after stopping treatment.
Dr West then reports on the IPSOS trial, which compared atezolizumab with single-agent chemotherapy in patients who were ineligible for standard chemotherapy. The results suggested that immunotherapy could be used in patients who are usually excluded from trials.
He finishes with two studies in EGFR-mutated disease. ORIENT-3 indicated that the effect of sintilimab could be boosted with a bevacizumab biosimilar. INSIGHT 2 suggested that adding tepotinib to osimertinib may be effective in patients with MET amplification.
--
Associate Professor, Department of Medical Oncology, City of Hope Comprehensive Cancer Care, Duarte, California; Medical Director, AccessHope, Los Angeles, California
Howard (Jack) West, MD, has disclosed the following relevant financial relationships:
Serve(d) as a director, officer, partner, employee, advisor, consultant, or trustee for: Amgen; AstraZeneca; Eli Lilly; EQRx; Genentech/Roche; Merck; Mirati; Pfizer; Regeneron; Takeda
Serve(d) as a speaker or a member of a speakers bureau for: AstraZeneca; Merck
Highlights in advanced non–small lung cancer (NSCLC) from the 2022 European Society for Medical Oncology Congress are presented by Dr Jack West of City of Hope Comprehensive Cancer Center in Duarte, California.
Dr West begins by discussing CodeBreak 200, a study comparing sotorasib with docetaxel in previously treated patients with a KRAS G12C mutation. Sotorasib improved progression-free survival, but overall survival data are awaited.
Next, Dr West examines 5-year updates from KEYNOTE-189 and KEYNOTE-407, comparing pembrolizumab with chemotherapy in nonsquamous and squamous disease, respectively. Around two fifths of patients remained alive and disease-free 5 years after stopping treatment.
Dr West then reports on the IPSOS trial, which compared atezolizumab with single-agent chemotherapy in patients who were ineligible for standard chemotherapy. The results suggested that immunotherapy could be used in patients who are usually excluded from trials.
He finishes with two studies in EGFR-mutated disease. ORIENT-3 indicated that the effect of sintilimab could be boosted with a bevacizumab biosimilar. INSIGHT 2 suggested that adding tepotinib to osimertinib may be effective in patients with MET amplification.
--
Associate Professor, Department of Medical Oncology, City of Hope Comprehensive Cancer Care, Duarte, California; Medical Director, AccessHope, Los Angeles, California
Howard (Jack) West, MD, has disclosed the following relevant financial relationships:
Serve(d) as a director, officer, partner, employee, advisor, consultant, or trustee for: Amgen; AstraZeneca; Eli Lilly; EQRx; Genentech/Roche; Merck; Mirati; Pfizer; Regeneron; Takeda
Serve(d) as a speaker or a member of a speakers bureau for: AstraZeneca; Merck
Highlights in advanced non–small lung cancer (NSCLC) from the 2022 European Society for Medical Oncology Congress are presented by Dr Jack West of City of Hope Comprehensive Cancer Center in Duarte, California.
Dr West begins by discussing CodeBreak 200, a study comparing sotorasib with docetaxel in previously treated patients with a KRAS G12C mutation. Sotorasib improved progression-free survival, but overall survival data are awaited.
Next, Dr West examines 5-year updates from KEYNOTE-189 and KEYNOTE-407, comparing pembrolizumab with chemotherapy in nonsquamous and squamous disease, respectively. Around two fifths of patients remained alive and disease-free 5 years after stopping treatment.
Dr West then reports on the IPSOS trial, which compared atezolizumab with single-agent chemotherapy in patients who were ineligible for standard chemotherapy. The results suggested that immunotherapy could be used in patients who are usually excluded from trials.
He finishes with two studies in EGFR-mutated disease. ORIENT-3 indicated that the effect of sintilimab could be boosted with a bevacizumab biosimilar. INSIGHT 2 suggested that adding tepotinib to osimertinib may be effective in patients with MET amplification.
--
Associate Professor, Department of Medical Oncology, City of Hope Comprehensive Cancer Care, Duarte, California; Medical Director, AccessHope, Los Angeles, California
Howard (Jack) West, MD, has disclosed the following relevant financial relationships:
Serve(d) as a director, officer, partner, employee, advisor, consultant, or trustee for: Amgen; AstraZeneca; Eli Lilly; EQRx; Genentech/Roche; Merck; Mirati; Pfizer; Regeneron; Takeda
Serve(d) as a speaker or a member of a speakers bureau for: AstraZeneca; Merck
Key Data on Early Non–Small Cell Lung Cancer From ESMO 2022
Dr Jack West of City of Hope Comprehensive Cancer Center in Duarte, California, discusses key presentations on early-stage non–small lung cancer (NSCLC) from the 2022 European Society for Medical Oncology Congress.
He begins by reporting on 2 years of additional follow-up from the ADAURA trial, which looked at osimertinib as adjuvant therapy in patients with resected EGFR-mutated disease. The results raise the question of whether the drug needs to be given indefinitely.
Next, he discusses an analysis of data from the ADAURA trial that looked at longitudinal monitoring of circulating tumor DNA (ctDNA) levels. This revealed that both baseline ctDNA and ctDNA clearance were predictive of later recurrence.
Dr West moves on to a large global study that demonstrated a clear link between air pollution and lung cancer. Pollution was shown to be a tumor promoter of rare driver mutations in normal lung tissue.
After discussing disappointing data from CANOPY-A indicating that adjuvant canakinumab does not improve survival outcomes, he closes with an examination of the PATHFINDER study. This involved more than 6600 patients who were screened for cancer after a single blood test. Although the study identified cancer in 1.4% of participants, the low positive predictive value raises questions over the wider application of this test.
--
Associate Professor, Department of Medical Oncology, City of Hope Comprehensive Cancer Care, Duarte, California; Medical Director, AccessHope, Los Angeles, California
Howard (Jack) West, MD, has disclosed the following relevant financial relationships:
Serve(d) as a director, officer, partner, employee, advisor, consultant, or trustee for: Amgen; AstraZeneca; Eli Lilly; EQRx; Genentech/Roche; Merck; Mirati; Pfizer; Regeneron; Takeda
Serve(d) as a speaker or a member of a speakers bureau for: AstraZeneca; Merck
Dr Jack West of City of Hope Comprehensive Cancer Center in Duarte, California, discusses key presentations on early-stage non–small lung cancer (NSCLC) from the 2022 European Society for Medical Oncology Congress.
He begins by reporting on 2 years of additional follow-up from the ADAURA trial, which looked at osimertinib as adjuvant therapy in patients with resected EGFR-mutated disease. The results raise the question of whether the drug needs to be given indefinitely.
Next, he discusses an analysis of data from the ADAURA trial that looked at longitudinal monitoring of circulating tumor DNA (ctDNA) levels. This revealed that both baseline ctDNA and ctDNA clearance were predictive of later recurrence.
Dr West moves on to a large global study that demonstrated a clear link between air pollution and lung cancer. Pollution was shown to be a tumor promoter of rare driver mutations in normal lung tissue.
After discussing disappointing data from CANOPY-A indicating that adjuvant canakinumab does not improve survival outcomes, he closes with an examination of the PATHFINDER study. This involved more than 6600 patients who were screened for cancer after a single blood test. Although the study identified cancer in 1.4% of participants, the low positive predictive value raises questions over the wider application of this test.
--
Associate Professor, Department of Medical Oncology, City of Hope Comprehensive Cancer Care, Duarte, California; Medical Director, AccessHope, Los Angeles, California
Howard (Jack) West, MD, has disclosed the following relevant financial relationships:
Serve(d) as a director, officer, partner, employee, advisor, consultant, or trustee for: Amgen; AstraZeneca; Eli Lilly; EQRx; Genentech/Roche; Merck; Mirati; Pfizer; Regeneron; Takeda
Serve(d) as a speaker or a member of a speakers bureau for: AstraZeneca; Merck
Dr Jack West of City of Hope Comprehensive Cancer Center in Duarte, California, discusses key presentations on early-stage non–small lung cancer (NSCLC) from the 2022 European Society for Medical Oncology Congress.
He begins by reporting on 2 years of additional follow-up from the ADAURA trial, which looked at osimertinib as adjuvant therapy in patients with resected EGFR-mutated disease. The results raise the question of whether the drug needs to be given indefinitely.
Next, he discusses an analysis of data from the ADAURA trial that looked at longitudinal monitoring of circulating tumor DNA (ctDNA) levels. This revealed that both baseline ctDNA and ctDNA clearance were predictive of later recurrence.
Dr West moves on to a large global study that demonstrated a clear link between air pollution and lung cancer. Pollution was shown to be a tumor promoter of rare driver mutations in normal lung tissue.
After discussing disappointing data from CANOPY-A indicating that adjuvant canakinumab does not improve survival outcomes, he closes with an examination of the PATHFINDER study. This involved more than 6600 patients who were screened for cancer after a single blood test. Although the study identified cancer in 1.4% of participants, the low positive predictive value raises questions over the wider application of this test.
--
Associate Professor, Department of Medical Oncology, City of Hope Comprehensive Cancer Care, Duarte, California; Medical Director, AccessHope, Los Angeles, California
Howard (Jack) West, MD, has disclosed the following relevant financial relationships:
Serve(d) as a director, officer, partner, employee, advisor, consultant, or trustee for: Amgen; AstraZeneca; Eli Lilly; EQRx; Genentech/Roche; Merck; Mirati; Pfizer; Regeneron; Takeda
Serve(d) as a speaker or a member of a speakers bureau for: AstraZeneca; Merck
Is a progression-free survival benefit alone really worth $10,000 a month?
In the field of lung cancer, and more broadly in oncology, many of our biggest advances in 2021 have come as clinically meaningful improvements in surrogate endpoints – disease-free survival, progression-free survival, and sometimes even pathologic complete response rate.
I have historically been most compelled to consider new findings to be practice-changing when they improve overall survival or quality of life – the endpoints that translate to direct benefits for patients. However, I also feel it is appropriate to call surrogate endpoints practice-changing when they can predict improvements in overall survival or quality of life.
Take the PACIFIC trial, which assessed maintenance durvalumab after concurrent chemoradiation for unresectable stage III non–small cell lung cancer (NSCLC).
Back in 2017, I was initially unconvinced by the interim phase 3 data that were presented in a press release that highlighted the disease-free survival benefit. However, after examining additional data more closely, I saw the dramatic improvement in time to distant relapse or death was overwhelmingly likely to predict an improvement in overall survival – a benefit that the data subsequently bore out.
More recently, the disease-free survival results for adjuvant osimertinib in resected endothelial growth factor receptor mutation–positive NSCLC and adjuvant atezolizumab in resected programmed death-ligand 1–positive stage II-IIIA NSCLC have led to excitement about Food and Drug Administration approvals for these therapies. Although there is reason to be cautious about the likelihood of an overall survival benefit with either therapy – particularly for patients with low programmed death-ligand 1 who receive atezolizumab – I think that the results are promising enough to discuss these treatment options with appropriate patients.
Some argue, however, that overall survival is not necessarily a critical goal and that certain surrogate endpoints are inherently beneficial. Patients and oncologists may, for instance, view delaying disease progression as a win, even if overall survival remains the same.
I appreciate the view that favorable scan results are an achievement, even without a survival benefit. Patients appreciate the good news, and it is gratifying for us to deliver it. However, what remains unspoken is whether the benefit can be provided at a reasonable value given the financial costs associated with the new treatment.
In the United States, we consider the physician-patient relationship to be autonomous and even revered, but we conveniently ignore the fact that both are deciding on treatments that are funded by people who are not represented in the room. And in a health care system that fails to cover basic cancer care needs as well as other critical, high-value interventions for both the uninsured and underinsured, we should acknowledge that our decisions redirect limited resources from others.
Is it the best use of $10,000 per month for a new drug that improves disease-free survival but not overall survival?
At the same time, we also have to remain vigilant and reflect on whether we are echoing the marketing messages of the companies selling these treatments. Having recently watched the excellent Hulu series Dopesick, which realistically portrays the medical community’s egregious overuse of Oxycontin at the behest of Purdue Pharmaceuticals, it is striking to see how effectively the pharmaceutical industry can co-opt stakeholders. Very few physicians or patients have expertise in health care policy with broad societal perspective, yet subspecialists offer edicts as if society should dedicate unlimited resources first and foremost to our career focus or personal cause.
I certainly appreciate the appeal of surrogate endpoints in a world in which we hope to offer novel therapies to patients in a timely fashion. In the next few years, some of our most promising data in oncology will demand that we consider whether surrogate endpoints are practice-changing. We are facing a fundamental question: Are we using these surrogate endpoints to predict overall survival or quality of life or do these endpoints stand on their own as practice-changing metrics?
We need to acknowledge that our primary clinical focus is not the only one that deserves our attention, particularly when our treatment decisions are, in fact, spending other people’s money. We should be asking not whether we prefer to deliver good news after a scan, but whether that alone is enough to justify the high cost of a new treatment without an overall survival benefit.
Dr. West disclosed serving as a director, officer, partner, employee, adviser, consultant, or trustee for Ariad/Takeda, Bristol-Myers Squibb, Boehringer Ingelheim, Spectrum, AstraZeneca, Celgene, Genentech/Roche, Pfizer, and Merck; serving as a speaker or a member of a speakers bureau for Ariad/Takeda, AstraZeneca, and Genentech/Roche; and receiving income from Eli Lilly. A version of this article first appeared on Medscape.com.
In the field of lung cancer, and more broadly in oncology, many of our biggest advances in 2021 have come as clinically meaningful improvements in surrogate endpoints – disease-free survival, progression-free survival, and sometimes even pathologic complete response rate.
I have historically been most compelled to consider new findings to be practice-changing when they improve overall survival or quality of life – the endpoints that translate to direct benefits for patients. However, I also feel it is appropriate to call surrogate endpoints practice-changing when they can predict improvements in overall survival or quality of life.
Take the PACIFIC trial, which assessed maintenance durvalumab after concurrent chemoradiation for unresectable stage III non–small cell lung cancer (NSCLC).
Back in 2017, I was initially unconvinced by the interim phase 3 data that were presented in a press release that highlighted the disease-free survival benefit. However, after examining additional data more closely, I saw the dramatic improvement in time to distant relapse or death was overwhelmingly likely to predict an improvement in overall survival – a benefit that the data subsequently bore out.
More recently, the disease-free survival results for adjuvant osimertinib in resected endothelial growth factor receptor mutation–positive NSCLC and adjuvant atezolizumab in resected programmed death-ligand 1–positive stage II-IIIA NSCLC have led to excitement about Food and Drug Administration approvals for these therapies. Although there is reason to be cautious about the likelihood of an overall survival benefit with either therapy – particularly for patients with low programmed death-ligand 1 who receive atezolizumab – I think that the results are promising enough to discuss these treatment options with appropriate patients.
Some argue, however, that overall survival is not necessarily a critical goal and that certain surrogate endpoints are inherently beneficial. Patients and oncologists may, for instance, view delaying disease progression as a win, even if overall survival remains the same.
I appreciate the view that favorable scan results are an achievement, even without a survival benefit. Patients appreciate the good news, and it is gratifying for us to deliver it. However, what remains unspoken is whether the benefit can be provided at a reasonable value given the financial costs associated with the new treatment.
In the United States, we consider the physician-patient relationship to be autonomous and even revered, but we conveniently ignore the fact that both are deciding on treatments that are funded by people who are not represented in the room. And in a health care system that fails to cover basic cancer care needs as well as other critical, high-value interventions for both the uninsured and underinsured, we should acknowledge that our decisions redirect limited resources from others.
Is it the best use of $10,000 per month for a new drug that improves disease-free survival but not overall survival?
At the same time, we also have to remain vigilant and reflect on whether we are echoing the marketing messages of the companies selling these treatments. Having recently watched the excellent Hulu series Dopesick, which realistically portrays the medical community’s egregious overuse of Oxycontin at the behest of Purdue Pharmaceuticals, it is striking to see how effectively the pharmaceutical industry can co-opt stakeholders. Very few physicians or patients have expertise in health care policy with broad societal perspective, yet subspecialists offer edicts as if society should dedicate unlimited resources first and foremost to our career focus or personal cause.
I certainly appreciate the appeal of surrogate endpoints in a world in which we hope to offer novel therapies to patients in a timely fashion. In the next few years, some of our most promising data in oncology will demand that we consider whether surrogate endpoints are practice-changing. We are facing a fundamental question: Are we using these surrogate endpoints to predict overall survival or quality of life or do these endpoints stand on their own as practice-changing metrics?
We need to acknowledge that our primary clinical focus is not the only one that deserves our attention, particularly when our treatment decisions are, in fact, spending other people’s money. We should be asking not whether we prefer to deliver good news after a scan, but whether that alone is enough to justify the high cost of a new treatment without an overall survival benefit.
Dr. West disclosed serving as a director, officer, partner, employee, adviser, consultant, or trustee for Ariad/Takeda, Bristol-Myers Squibb, Boehringer Ingelheim, Spectrum, AstraZeneca, Celgene, Genentech/Roche, Pfizer, and Merck; serving as a speaker or a member of a speakers bureau for Ariad/Takeda, AstraZeneca, and Genentech/Roche; and receiving income from Eli Lilly. A version of this article first appeared on Medscape.com.
In the field of lung cancer, and more broadly in oncology, many of our biggest advances in 2021 have come as clinically meaningful improvements in surrogate endpoints – disease-free survival, progression-free survival, and sometimes even pathologic complete response rate.
I have historically been most compelled to consider new findings to be practice-changing when they improve overall survival or quality of life – the endpoints that translate to direct benefits for patients. However, I also feel it is appropriate to call surrogate endpoints practice-changing when they can predict improvements in overall survival or quality of life.
Take the PACIFIC trial, which assessed maintenance durvalumab after concurrent chemoradiation for unresectable stage III non–small cell lung cancer (NSCLC).
Back in 2017, I was initially unconvinced by the interim phase 3 data that were presented in a press release that highlighted the disease-free survival benefit. However, after examining additional data more closely, I saw the dramatic improvement in time to distant relapse or death was overwhelmingly likely to predict an improvement in overall survival – a benefit that the data subsequently bore out.
More recently, the disease-free survival results for adjuvant osimertinib in resected endothelial growth factor receptor mutation–positive NSCLC and adjuvant atezolizumab in resected programmed death-ligand 1–positive stage II-IIIA NSCLC have led to excitement about Food and Drug Administration approvals for these therapies. Although there is reason to be cautious about the likelihood of an overall survival benefit with either therapy – particularly for patients with low programmed death-ligand 1 who receive atezolizumab – I think that the results are promising enough to discuss these treatment options with appropriate patients.
Some argue, however, that overall survival is not necessarily a critical goal and that certain surrogate endpoints are inherently beneficial. Patients and oncologists may, for instance, view delaying disease progression as a win, even if overall survival remains the same.
I appreciate the view that favorable scan results are an achievement, even without a survival benefit. Patients appreciate the good news, and it is gratifying for us to deliver it. However, what remains unspoken is whether the benefit can be provided at a reasonable value given the financial costs associated with the new treatment.
In the United States, we consider the physician-patient relationship to be autonomous and even revered, but we conveniently ignore the fact that both are deciding on treatments that are funded by people who are not represented in the room. And in a health care system that fails to cover basic cancer care needs as well as other critical, high-value interventions for both the uninsured and underinsured, we should acknowledge that our decisions redirect limited resources from others.
Is it the best use of $10,000 per month for a new drug that improves disease-free survival but not overall survival?
At the same time, we also have to remain vigilant and reflect on whether we are echoing the marketing messages of the companies selling these treatments. Having recently watched the excellent Hulu series Dopesick, which realistically portrays the medical community’s egregious overuse of Oxycontin at the behest of Purdue Pharmaceuticals, it is striking to see how effectively the pharmaceutical industry can co-opt stakeholders. Very few physicians or patients have expertise in health care policy with broad societal perspective, yet subspecialists offer edicts as if society should dedicate unlimited resources first and foremost to our career focus or personal cause.
I certainly appreciate the appeal of surrogate endpoints in a world in which we hope to offer novel therapies to patients in a timely fashion. In the next few years, some of our most promising data in oncology will demand that we consider whether surrogate endpoints are practice-changing. We are facing a fundamental question: Are we using these surrogate endpoints to predict overall survival or quality of life or do these endpoints stand on their own as practice-changing metrics?
We need to acknowledge that our primary clinical focus is not the only one that deserves our attention, particularly when our treatment decisions are, in fact, spending other people’s money. We should be asking not whether we prefer to deliver good news after a scan, but whether that alone is enough to justify the high cost of a new treatment without an overall survival benefit.
Dr. West disclosed serving as a director, officer, partner, employee, adviser, consultant, or trustee for Ariad/Takeda, Bristol-Myers Squibb, Boehringer Ingelheim, Spectrum, AstraZeneca, Celgene, Genentech/Roche, Pfizer, and Merck; serving as a speaker or a member of a speakers bureau for Ariad/Takeda, AstraZeneca, and Genentech/Roche; and receiving income from Eli Lilly. A version of this article first appeared on Medscape.com.
Five reasons why medical meetings will never be the same
In the wake of the COVID-19 pandemic, the virtual medical meeting is now the norm. And while it’s admirable that key data are being disseminated (often for free), there is no escaping the fact that it is a fundamentally different and lesser experience.
Watching from home, most of us split our attention between live streams of the meeting and work and family obligations. There is far less urgency when early live presentations are recorded and can be viewed later.
In terms of discussing the data, Twitter may offer broader participation than a live meeting, yet only a small number of attendees actively engage online.
And the exhibit halls for these online meetings? With neither free coffee nor company-branded tchotchkes, I expect that they have virtual tumbleweeds blowing through and crickets chirping.
Even still, the virtual meeting experience, while inferior to the live one, is a tremendous advance. It should never be banished as a historical footnote but rather should remain an option. It’s analogous to watching the Super Bowl at home: Obviously, it’s not the same as being there, but it’s a terrific alternative. Like telemedicine, this pandemic has provided a critical proof of concept that there is a better model.
Reshaping the medical meeting
Let’s consider five reasons why medical meetings should be permanently reshaped by this pandemic.
This pandemic isn’t going away in 2020. While nearly every country has done a far better job than the United States of containing COVID-19 thus far, outbreaks remain a problem wherever crowds assemble. You’d be hard-pressed to devise a setting more conducive to mass spread than a conference of 20,000 attendees from all over the world sitting alongside each other cheek to jowl for 5 days. Worse yet is the thought of them returning home and infecting their patients, families, and friends. What medical society wants to be remembered for creating a COVID-19 superspreader event? Professional medical societies will need to offer this option as the safest alternative moving forward.
Virtual learning still conveys the most important content. Despite the many social benefits of a live meeting, its core purpose is to disseminate new research and current and emerging treatment options. Virtual meetings have proven that this format can effectively deliver the content, and not as a secondary offering but as the sole platform in real time.
Virtual learning levels the playing field. Traveling to attend conferences typically costs thousands of dollars, accounting for the registration fees, inflated hotel rates, ground transportation, and meals out for days on end. Most meetings also demand several days away from our work and families, forcing many of us to work extra in the days before we leave and upon our return. Parents and those with commitments at home also face special challenges. For international participants, the financial and time costs are even greater. A virtual meeting helps overcome these hurdles and erases barriers that have long precluded many from attending a conference.
Virtual learning is efficient and comfortable. Virtual meetings over the past 6 months have given us a glimpse of an astonishingly more efficient form. If the content seems of a lower magnitude without the fanfare of a live conference, it is in part because so much of a live meeting is spent walking a mile between session rooms, waiting in concession or taxi lines, sitting in traffic between venues, or simply waiting for a session to begin. All of that has been replaced with time that you can use productively in between video sessions viewed either live or on demand. And with a virtual meeting, you can comfortably watch the sessions. There’s no need to stand along the back wall of an overcrowded room or step over 10 people to squeeze into an open middle seat. You can be focused, rather than having an end-of-day presentation wash over you as your eyes cross because you’ve been running around for the past 12 hours.
Virtual learning and social media will only improve. While virtual meetings unquestionably have limitations, it’s important to acknowledge that the successes thus far still represent only the earliest forays into this endeavor. In-person meetings evolved to their present form over centuries. In contrast, virtual meetings are being cobbled together within a few weeks or months. They can only be expected to improve as presenters adapt their skills to the online audience and new tools improve virtual discussions.
I am not implying that live meetings will or should be replaced by virtual ones. We still need that experience of trainees and experts presenting to a live audience and discussing the results together, all while sharing the energy of the moment. But there should be room for both a live conference and a virtual version.
Practically speaking, it is unclear whether professional societies could forgo the revenue they receive from registration fees, meeting sponsorships, and corporate exhibits. Yet, there are certainly ways to obtain sponsorship revenue for a virtual program. Even if the virtual version of a conference costs far less than attending in person, there is plenty of room between that number and free. It costs remarkably little for a professional society to share its content, and virtual offerings further the mission of distributing this content broadly.
We should not rush to return to the previous status quo. Despite their limitations, virtual meetings have brought a new, higher standard of access and efficiency for sharing important new data and treatment options in medicine.
H. Jack West, MD, associate clinical professor and executive director of employer services at City of Hope Comprehensive Cancer Center in Duarte, Calif., regularly comments on lung cancer for Medscape. West serves as web editor for JAMA Oncology, edits and writes several sections on lung cancer for UpToDate, and leads a wide range of continuing education programs and other educational programs, including hosting the audio podcast West Wind.
This article first appeared on Medscape.com.
In the wake of the COVID-19 pandemic, the virtual medical meeting is now the norm. And while it’s admirable that key data are being disseminated (often for free), there is no escaping the fact that it is a fundamentally different and lesser experience.
Watching from home, most of us split our attention between live streams of the meeting and work and family obligations. There is far less urgency when early live presentations are recorded and can be viewed later.
In terms of discussing the data, Twitter may offer broader participation than a live meeting, yet only a small number of attendees actively engage online.
And the exhibit halls for these online meetings? With neither free coffee nor company-branded tchotchkes, I expect that they have virtual tumbleweeds blowing through and crickets chirping.
Even still, the virtual meeting experience, while inferior to the live one, is a tremendous advance. It should never be banished as a historical footnote but rather should remain an option. It’s analogous to watching the Super Bowl at home: Obviously, it’s not the same as being there, but it’s a terrific alternative. Like telemedicine, this pandemic has provided a critical proof of concept that there is a better model.
Reshaping the medical meeting
Let’s consider five reasons why medical meetings should be permanently reshaped by this pandemic.
This pandemic isn’t going away in 2020. While nearly every country has done a far better job than the United States of containing COVID-19 thus far, outbreaks remain a problem wherever crowds assemble. You’d be hard-pressed to devise a setting more conducive to mass spread than a conference of 20,000 attendees from all over the world sitting alongside each other cheek to jowl for 5 days. Worse yet is the thought of them returning home and infecting their patients, families, and friends. What medical society wants to be remembered for creating a COVID-19 superspreader event? Professional medical societies will need to offer this option as the safest alternative moving forward.
Virtual learning still conveys the most important content. Despite the many social benefits of a live meeting, its core purpose is to disseminate new research and current and emerging treatment options. Virtual meetings have proven that this format can effectively deliver the content, and not as a secondary offering but as the sole platform in real time.
Virtual learning levels the playing field. Traveling to attend conferences typically costs thousands of dollars, accounting for the registration fees, inflated hotel rates, ground transportation, and meals out for days on end. Most meetings also demand several days away from our work and families, forcing many of us to work extra in the days before we leave and upon our return. Parents and those with commitments at home also face special challenges. For international participants, the financial and time costs are even greater. A virtual meeting helps overcome these hurdles and erases barriers that have long precluded many from attending a conference.
Virtual learning is efficient and comfortable. Virtual meetings over the past 6 months have given us a glimpse of an astonishingly more efficient form. If the content seems of a lower magnitude without the fanfare of a live conference, it is in part because so much of a live meeting is spent walking a mile between session rooms, waiting in concession or taxi lines, sitting in traffic between venues, or simply waiting for a session to begin. All of that has been replaced with time that you can use productively in between video sessions viewed either live or on demand. And with a virtual meeting, you can comfortably watch the sessions. There’s no need to stand along the back wall of an overcrowded room or step over 10 people to squeeze into an open middle seat. You can be focused, rather than having an end-of-day presentation wash over you as your eyes cross because you’ve been running around for the past 12 hours.
Virtual learning and social media will only improve. While virtual meetings unquestionably have limitations, it’s important to acknowledge that the successes thus far still represent only the earliest forays into this endeavor. In-person meetings evolved to their present form over centuries. In contrast, virtual meetings are being cobbled together within a few weeks or months. They can only be expected to improve as presenters adapt their skills to the online audience and new tools improve virtual discussions.
I am not implying that live meetings will or should be replaced by virtual ones. We still need that experience of trainees and experts presenting to a live audience and discussing the results together, all while sharing the energy of the moment. But there should be room for both a live conference and a virtual version.
Practically speaking, it is unclear whether professional societies could forgo the revenue they receive from registration fees, meeting sponsorships, and corporate exhibits. Yet, there are certainly ways to obtain sponsorship revenue for a virtual program. Even if the virtual version of a conference costs far less than attending in person, there is plenty of room between that number and free. It costs remarkably little for a professional society to share its content, and virtual offerings further the mission of distributing this content broadly.
We should not rush to return to the previous status quo. Despite their limitations, virtual meetings have brought a new, higher standard of access and efficiency for sharing important new data and treatment options in medicine.
H. Jack West, MD, associate clinical professor and executive director of employer services at City of Hope Comprehensive Cancer Center in Duarte, Calif., regularly comments on lung cancer for Medscape. West serves as web editor for JAMA Oncology, edits and writes several sections on lung cancer for UpToDate, and leads a wide range of continuing education programs and other educational programs, including hosting the audio podcast West Wind.
This article first appeared on Medscape.com.
In the wake of the COVID-19 pandemic, the virtual medical meeting is now the norm. And while it’s admirable that key data are being disseminated (often for free), there is no escaping the fact that it is a fundamentally different and lesser experience.
Watching from home, most of us split our attention between live streams of the meeting and work and family obligations. There is far less urgency when early live presentations are recorded and can be viewed later.
In terms of discussing the data, Twitter may offer broader participation than a live meeting, yet only a small number of attendees actively engage online.
And the exhibit halls for these online meetings? With neither free coffee nor company-branded tchotchkes, I expect that they have virtual tumbleweeds blowing through and crickets chirping.
Even still, the virtual meeting experience, while inferior to the live one, is a tremendous advance. It should never be banished as a historical footnote but rather should remain an option. It’s analogous to watching the Super Bowl at home: Obviously, it’s not the same as being there, but it’s a terrific alternative. Like telemedicine, this pandemic has provided a critical proof of concept that there is a better model.
Reshaping the medical meeting
Let’s consider five reasons why medical meetings should be permanently reshaped by this pandemic.
This pandemic isn’t going away in 2020. While nearly every country has done a far better job than the United States of containing COVID-19 thus far, outbreaks remain a problem wherever crowds assemble. You’d be hard-pressed to devise a setting more conducive to mass spread than a conference of 20,000 attendees from all over the world sitting alongside each other cheek to jowl for 5 days. Worse yet is the thought of them returning home and infecting their patients, families, and friends. What medical society wants to be remembered for creating a COVID-19 superspreader event? Professional medical societies will need to offer this option as the safest alternative moving forward.
Virtual learning still conveys the most important content. Despite the many social benefits of a live meeting, its core purpose is to disseminate new research and current and emerging treatment options. Virtual meetings have proven that this format can effectively deliver the content, and not as a secondary offering but as the sole platform in real time.
Virtual learning levels the playing field. Traveling to attend conferences typically costs thousands of dollars, accounting for the registration fees, inflated hotel rates, ground transportation, and meals out for days on end. Most meetings also demand several days away from our work and families, forcing many of us to work extra in the days before we leave and upon our return. Parents and those with commitments at home also face special challenges. For international participants, the financial and time costs are even greater. A virtual meeting helps overcome these hurdles and erases barriers that have long precluded many from attending a conference.
Virtual learning is efficient and comfortable. Virtual meetings over the past 6 months have given us a glimpse of an astonishingly more efficient form. If the content seems of a lower magnitude without the fanfare of a live conference, it is in part because so much of a live meeting is spent walking a mile between session rooms, waiting in concession or taxi lines, sitting in traffic between venues, or simply waiting for a session to begin. All of that has been replaced with time that you can use productively in between video sessions viewed either live or on demand. And with a virtual meeting, you can comfortably watch the sessions. There’s no need to stand along the back wall of an overcrowded room or step over 10 people to squeeze into an open middle seat. You can be focused, rather than having an end-of-day presentation wash over you as your eyes cross because you’ve been running around for the past 12 hours.
Virtual learning and social media will only improve. While virtual meetings unquestionably have limitations, it’s important to acknowledge that the successes thus far still represent only the earliest forays into this endeavor. In-person meetings evolved to their present form over centuries. In contrast, virtual meetings are being cobbled together within a few weeks or months. They can only be expected to improve as presenters adapt their skills to the online audience and new tools improve virtual discussions.
I am not implying that live meetings will or should be replaced by virtual ones. We still need that experience of trainees and experts presenting to a live audience and discussing the results together, all while sharing the energy of the moment. But there should be room for both a live conference and a virtual version.
Practically speaking, it is unclear whether professional societies could forgo the revenue they receive from registration fees, meeting sponsorships, and corporate exhibits. Yet, there are certainly ways to obtain sponsorship revenue for a virtual program. Even if the virtual version of a conference costs far less than attending in person, there is plenty of room between that number and free. It costs remarkably little for a professional society to share its content, and virtual offerings further the mission of distributing this content broadly.
We should not rush to return to the previous status quo. Despite their limitations, virtual meetings have brought a new, higher standard of access and efficiency for sharing important new data and treatment options in medicine.
H. Jack West, MD, associate clinical professor and executive director of employer services at City of Hope Comprehensive Cancer Center in Duarte, Calif., regularly comments on lung cancer for Medscape. West serves as web editor for JAMA Oncology, edits and writes several sections on lung cancer for UpToDate, and leads a wide range of continuing education programs and other educational programs, including hosting the audio podcast West Wind.
This article first appeared on Medscape.com.