Biotech Strategy Blog

Commentary on Science, Innovation & New Products with a focus on Oncology, Hematology & Cancer Immunotherapy

Posts tagged ‘CAR T cell therapy’

We have long argued that by the time 2nd Generation CAR T cell therapies hit the market they will almost be obsolete and next generation versions will already be in advanced clinical testing. The product life cycle in this niche is likely to be a very rapid one, much more so than in other areas of cancer research.

The critical question isn’t when these new constructs will be available, but rather what form will they take? What will they look like, and which issues will they address?

Several researchers are leading the way in the CAR T cell therapy space, but a recent presentation by one expert in this field reinforced how he is making a transition from pioneer to disruptor.

In this post we explore some of the issues and ideas he discussed in a vision for the future.

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It’s been quite a roller coaster week so far for CAR T cell therapies, with Gilead announcing its intended acquisition of Kite Pharma on Monday.  If that wasn’t enough, Wednesday brought another surprise – the FDA approved a rare double header – for Novartis’s CTL019, now known as tisagenlecleucel (Kymriah) for pediatric and young adult patients with a form of acute lymphoblastic leukemia (ALL), as well as a new indication for Genentech’s tocilizumab (Actemra) for the treatment of CAR T cell-induced severe or life-threatening cytokine release syndrome (CRS) in patients two years of age and older.

Inevitably there has been much hullabaloo and much anticipation over the expected price tag that might accompany the first cell therapy product approved in the US. Whatever your view on this, many of us were no doubt relieved it came in under $500K ($475K, with no charge for the product in the first month if there was a manufacturing failure or no response).  While undoubtedly pricey, frankly it could have been a lot worse given the relatively small patient population.

Of course, the approved therapy isn’t the only expected high ticket item – there’s also hospital costs (including highly trained physicians and nurses), ICU costs (for very sick patients), supportive care costs (including tocilizumab if CRS occurs), not to mention any lab, diagnostic or monitoring tests required. All of these will no doubt push the total bill nearer to $1M.  In children though, the lifetime value of curative intent and many additional years of life is a much easier to grasp concept for payers than adding a few extra months at a high cost in adults.

These issues do raise the stakes for Kite and what they plan to do strategically in aggressive lymphomas, where there is a larger pool of eligible people for therapy, which must be offset by lower response rates (vs. pALL) and likely lower durability based on the data we’ve seen to date.  If we are truly moving into a world of value based pricing in the US, then efficacy and tolerability will ultimately have an impact on the perceived cost and value of treatment.

As Warren Buffett, the famous value investor has been want to say, “Price is what you pay, value is what you get.”

Whoa that’s a lot to think about – who knows what Friday may bring at this rate – and we still have the Kite Axi-Cel approval in aggressive lymphomas to go yet…

Meanwhile, there’s also a high unmet medical need for new effective treatment options in Acute Myeloid Leukemia (AML), especially in the relapsed/refractory setting, which is why we’re firm supporters of the Beat AML trial that the Leukemia and Lymphoma Society are pioneering. (See: Interview with Dr Brian Druker).

There’s also interest from several companies in a variety of novel targets, including CD123.

Notre Dame, Paris

Cellectis recently announced the enrollment of the first AML patient into their trial of an allogeneic CAR T cell therapy (UCART123) targeting CD123.

Quite aside from the issue of addressing whether such a product can be administered safely and effectively, one major why there is notable interest in Cellectis is because an allogeneic CAR T cell therapy offers the potential of a much cheaper off-the-shelf product as well as enhanced performance from an abundance of fit immune cells from healthy donors rather than tired or exhausted ones from people who are sick, thereby reducing the risk of manufacturing failure.

While in Paris, I spoke with Cellectis Chief Medical Officer, Loan Hoang-Sayag, MD about the trial design and CD123 as a target in AML.

This is the third and final post in our summer mini-series on gene editing and allogeneic CAR T cell therapy.

The first in the series featured an interview with Professor Waseem Qasim (Link), and the second with Cellectis CSO, Dr Philippe Duchateau (Link).

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Chicago RiverAlthough ASH and ASGCT are important meetings for CAR T cell therapies, there are still some intriguing data to be had at ASCO next month, including both oral and poster abstracts.

In our latest ASCO 2017 Preview, we take a look at what to expect from in the CAR T cell space.

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We’re overdue a roundup and discussion on various key topics of interest to BSB readers, so here goes…

Today’s topics include an in-depth look at the impact of some negative events:

  • Kite and the cerebral oedema death with axi-cel
  • Genentech’s atezolizumab OS miss in urothelial cancer

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Long time attendees at the annual meeting of the American Association for Cancer Research (AACR) know that there are usually interesting posters and sessions buried on the last day of the meeting.

This year was no exception, with a major symposium on CAR T Cell Cancer Immunotherapy chaired by Michael Jensen MD (pictured right).

BSB readers will recall we interviewed him at the 2016 BMT Tandem meeting in Honolulu (See post: Optimizing CD19 CAR T cell therapy).  Excerpts from this interview also featured in Episode 14 – Cell Therapy Pioneers of the Novel Targets Podcast.

The CAR T symposium on the last day of AACR was one of my highlights of the meeting. The three speakers were:

  • Michael Jensen, MD (Seattle Children’s) Engineering Next Generation CAR T cells using Synthetic Biology-Inspired Technologies
  • Terry J. Fry, MD (National Cancer Institute) Defining and overcoming limitations of CD19 CAR immunotherapy in pediatric ALL
  • Christine E. Brown, PhD (City of Hope) Progress and Challenge in CAR T Cell Therapy for Brain Tumors

Each of these presentations would merit a full blog post in their own right, but in this particular post we’re focusing on CAR T cell therapy targeting glioblastoma multiforme (GBM).

GBM is the most common primary malignant brain tumor, and one with a dismal prognosis – the 5-year survival rate is only around 5%, so there is also a high unmet medical need for new effective treatment options. This devastating disease has proven to be a miserable graveyard for Pharma over the last decade, with many agents unfortunately ending up in dog drug heaven.

After her AACR17 presentation, Dr Brown kindly spoke to BSB.

This post is part of our series of thouight leader interviews from AACR17. It also continues our ongoing posts on the adoptive cellular therapy landscape, and in particular, CAR modified T cells.

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It’s finally time…

US Capitol Building, DC

By popular request from BSB readers, we have a CAR T cell therapy preview of the main abstracts to watch out for, including talks and posters, and what emerging themes to expect are likely to be.

If you are registered on the AACR site and signed in, then clicking on any of the abstracts highlighted in this review will enable you to add any interesting ones you fancy to your conference itinerary.

There’s a surprising amount to cover this year, especially when we consider the incredible work that’s ongoing to address a number of suboptimal aspects in the construct developments.  It’s continuing to progress at warp speed, so hold onto your hats and buckle down for our latest rock around the AACR clock.

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Two of the most intriguing developments in cancer research over the last 5 years have been checkpoint blockade and CAR T cell therapies. There’s no doubt that they work – in some patients – or that toxicities can be challenging to manage at times, but what has been very interesting to me has been physician reactions to the rise of immunotherapies.

There has been much noise about biomarkers, including whether they work or not in this niche, as well as how do we go about selecting patients for therapies and combinations?

Ultimately, immunotherapies will be no different from targeted therapies in that we need to better understand the underlying biology in order to move forward beyond the low hanging fruit and figure out how we can best select appropriate therapy for each individual based on their particular characteristics.

The worry that many researchers have is that we could end up making the same mistakes with immunotherapies as targeted therapies, i.e. treat them in a broad fashion akin to throwing mud at the wall. Indeed, some companies are already doing this, much to the consternation of the research community.

So how do we go about doing things better and thinking more strategically about what needs to be done?

Up next is the first in a two-part interview series with a global thought leader who is a scientist-clinician with expertise in both immunology and oncogenic pathways. What does he have to say about where we are now and importantly, what does the future hold?

This is the penultimate article in our coverage from the Triple meeting in Munich, held in November 2016.

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Targeted therapy and Chemo-Immunotherapy in CLL

At last December’s 2016 annual meeting of the American Society of Hematology, one of the areas that attracted attention was the latest clinical data on the treatment of chronic lymphocytic leukemia (CLL).

ASH 2016 in San Diego

In recent years, we’ve seen tremendous advances in the field with several new agents approved such as obintuzumab, ibrutinib, idelalisib, and venetoclax. There are also new treatment options available for CLL patients with high risk disease such as 17p deletions (Del17p).

Other new targeted therapies such as acalabrutinib are now in clinical development, plus we have CAR T cell therapies and combination strategies also being evaluated in the clinic.

So what was the hot news from #ASH16 in CLL?

  • Does chemotherapy still have a role or is it a targeted therapy world?
  • Are we further forward towards a cure?
  • Have we worked out how to identify those at risk of relapse?
  • Will CAR T cell therapy be a game changer in CLL?
  • Is financial toxicity going to be an issue with combination strategies?

BSB interviewed two experts in CLL while in San Diego who kindly shared their thoughts on which CLL data impressed them at the ASH annual meeting and discussed some of the big strategic issues facing the field right now. These interviews are being posted in a two-part series.

Part 1 today answers some of the questions highlighted above and explores the changing face of the broader CLL landscape.

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The Future of our (cancer research) Business

Happy New Year! No one really wants to spend too much time in the past dwelling on the negatives, what didn’t work, and in some spectacular cases, who’s to blame for it.

What we do want to know is what are the learnings from such endeavours and where are we going next.

Let’s look forward rather than backwards then and see what the Maverick’s crystal ball is showing in terms of fresh clarity and new trends we can learn from …

In today’s post I want to take a moment to look at some of the trends we can expect to see occuring in cancer research in 2017.

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John P. Leonard, MD is the Richard T. Silver Distinguished Professor of Hematology and Medical Oncology at Weill Cornell in New York. He’s a Lymphoma specialist.

Dr John Leonard at ASH16

Like many hematologists, he’s embraced Twitter as way to share his expertise with others in the hematology community. You can follow him at @JohnPLeonardMD.

Over the last couple of years prior to the ASH annual meeting, Dr Leonard has highlighted 10 lymphoma abstracts that caught his attention. You can tell he gets excellent social media pickup by the fact he’s even generated a hashtag to make them easy to find: #Leonardlist and other hematologists generate conversations around his eagerly awaited picks:

In case you missed them on Twitter, and in the spirit of David Letterman, Dr Leonard took me through this year’s #LeonardList and thoughtfully explained in detail why each selection made the cut… for oncology watchers, the why is often more important than the what.

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