Biotech Strategy Blog

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

Posts tagged ‘Immunogen’

I’ve heard quite a few people frequently exclaim of late how “ADCs are hot!” Alrighty then, yet this is really only the end of the beginning because old hands know they have actually been around for quite a while.

If one was cynically minded then there’s an obvious reason – chemotherapies are usually generic these days, while ADCs bring in much higher ticket prices.

They won’t all succeed though – we’ve already seen a steadily growing graveyard of failures, which started out promising on paper then unfortunately flopped in the clinic.  Just because an area is suddenly declared hot (again) doesn’t guarantee success because these are complex molecules to design compared to small molecules with a lot of factors impinging on their performance.

What many observers have missed, however, is the deeper and broader opportunities offered beyond the often plain vanilla examples.

This is because the modality has greater flexibility than chemotherapies – you can design them such that other things can be bolted on or even hidden, Trojan horse style.

In other words, what we are seeing is an early trend with few enlightened companies starting to ‘think outside the box’ in this niche.

In the near to medium future we will see a greater volume of clinical data on these emerging approaches, which could lead to improved outcomes and longer lives for people living with cancer.

So what are these new fangled things, how do they work, and which companies are active in the futuristic ADC markets?

In this review we highlight half a dozen emerging areas around ADC technology with examples of products and companies active in these niches…

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File under: intriguing binary events coming up of interest this quarter…

Source: BBC

There are a couple of phase 3 readouts likely due soon on two quite different oncology drugs in late stage development, namely Mirv and Marge, (aka mirvetuximab soravtansine and margetuximab).

For British readers, they remind me of Howard and Hilda Hughes (right) in the highly popular 1980’s comedy sitcom, lead by Richard Briers, Ever Decreasing Circles.

Aside from the fact that it’s an amusing historical analogy with more than a bit of whimsy, there are some strange parallels and hidden messages to be found here. For the record, the two characters had a penchance for wearing matching yet rather garish and ghastly jumpers.

You could either make a similar negative case for the rush from limited phase 2 data to pivotal registration study as for terribly ugly sweaters, with the reduced return on efficacy being alluded to from the show’s title.

The ripple effect – which way will it go?

Or on the other hand… the matchy matchy look could also play out the other way, in terms of positive forthcoming readouts validating phase 2 findings, so which case looks stronger overall for each agent?

To find out, we take a look at the history, what we know, and share our thoughts on how things might pan out – either way, major positive or negative outcomes can have a major ripple effect.

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It’s Wednesday at the 2017 JP Morgan Healthcare Conference and the last full day of the meeting. 

SF Streetcar at Pine StIt’s also our last day for a rolling blog; we hope you’ve enjoyed our coverage and commentary this year.

If you want to catch up on what we’ve written about, do check out our posts form Day 1 (Link) and Day 2 of JPM17 (Link).

Yesterday also included some thoughts on the latest Merck pembrolizumab filing announcement in 1L NSCLC, which has certainly had a dramatic impact on the market, even for big pharma (MRK +$4.9B, BMY -$3.3B).

Companies we’ve covered so far include: Celgene, Incyte, Seattle Genetics, Clovis, Puma, BMS, Five Prime, Nektar, Juno and others.

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Post 2016 US Election, we move on and get back to business with an in-depth review of some new science and clinical data.

ash-2015Yes, it’s time for another Bushidō – “Way of the Warrior” – guide to the key ASH abstracts!

Here we focus on acute myeloid leukemia (AML), a difficult and challenging disease to treat with a high unmet medical need for new effective therapies.

In this Preview we look at key companies in the AML space, as well as a look at what’s happening in classic targets and also some new ones that are receiving notable attention, both preclinically and also in the clinic.

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Tesaro’s niraparib is a highly selective poly(ADP-ribose) polymerase (PARP) 1/2 inhibitor that can induce synthetic lethality in tumor cells with homologous recombination DNA repair deficiencies (HRD), including germline BRCA-mutated tumours.  It received a lot of attention yesterday following the company’s announcement that the phase 3 trial successfully met its primary endpoint.  The trial was expected to readout this month, so it was bang on schedule.

ASCO 2016 Posters 5

Braving the scrum in the ASCO 2016 poster hall

The results generated a lot of discussion and also a bunch (half a dozen!) of questions from readers, since there was a lot noise around the top-line data in the press release, but very little real analysis or context.

I was planning on rolling out the draft posts we have been working on Gems from the Poster Halls, which included one focused on ovarian cancer.  It therefore makes sense to combine the poster analysis with a reader Q&A on ovarian cancer, including a detailed look at Tesaro’s niraparib as there are some important subtleties that many have missed.

Inevitably this ended up as a rather meaty analysis rather than the quick review I originally intended!

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For years we’ve followed the trials and tribulations of targeted therapies seeing many approved and quite a few disappear forlornly (and officially) off to dog drug heaven. Many more sit in no-man’s land as companies eagerly wait in a holding pattern for other trial readouts in different tumour types. Sadly, sometimes these studies don’t generate enough compelling data either. With so much competition about, there are no shortcuts or low-hanging fruit in biotech or cancer drug development any more.

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En route to Chicago and ASCO!

Then along came antibody drug conjugates (ADCs), with some encouraging results in a range of cancers in both solid tumours and hematologic malignancies that lead to the approval of several new therapies.

After that, the next big advance was immunotherapies, specifically checkpoint blockade, with encouraging single agent activity in melanoma, lung, and even urothelial bladder cancer. We’ve also seen the promise fo combining two different checkpoints such as nivolumab and ipilimumab together in metastatic melanoma, albeit with an increase in toxicities.

This is all very well and good, although the challenge remains that the majority of patients either respond to therapy and relapse, or do not respond at all, depending on the circumstances, the tumour type and the regimen. We still have a long way to go in moving the needle and creating a new paradigm shift on a broad scale.

So what happens when we start to combine modalities – such as targeted therapies with immunotherapies?

Uh-oh, I hear the distant cries of disagreement erupt…

  • Remember vemurafenib plus ipilimumab in metastatic melanoma was scuppered by severe hepatitis?
  • What about osimertinib plus durvalumab in NSCLC and the increased incidence of ILD?

Both of these statements are true, and yet… we should not assume that all mixed therapy combination approaches are doomed on the basis of a mere n of 2. What happens if some are synergistic or additive? What happens of there are hidden gems that teach us new ways of doing things rather than doing the same old thing just because it’s always been done that way?

With this in mind, I’d like to open the door on our first ASCO 2016 Preview series with a look at novel combination approaches in development that caught my eye.

What are the early hints and signals that we can learn from the data? Which companies are evaluating imaginative new ideas that may turn the tables on traditional thinking?  The ideas discussed here may well surprise a few people.

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San Francisco JPM16 Day 2It’s Tuesday at the 2016 JP Morgan Healthcare conference in San Francisco (Twitter #JPM16).

Each day of #JPM16 we’re doing a rolling blog post which we’re updating throughout the day with commentary and insights on the company presentations we’re covering.

While we’re not giving a blow-by-blow account, many companies have the slides readily available, we will be commenting on noteworthy news, and what we learn about corporate strategy going into 2016.

For those of you who like to catch up with the final summary of each day’s highlights, you can read yesterday’s Day 1 synopsis here and our interview with Seattle Genetics CEO, Clay Siegall here.

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Last month’s Biotech Strategy mailbag – where we answer questions from subscribers – turned out to be rather controversial with strong feelings running in several camps on Puma Biotech’s neratinib in breast cancer.

This time around we have a bunch of questions on completely different topics and compounds to cover:

  • BRAF plus MEK and/or immunotherapy in BRAFV600 metastatic melanoma
  • Immunogen’s IMGN853 – now known as mirvetuximab soravtansine – in platinum resistant ovarian cancer
  • AbbVie/Genentech’s ABT–199/GDC–0199 venetoclax

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