When There Is Blood In The Streets - Buy Biotech

Friday, October 10th, 2008

History has shown again and again that times like these represent a huge long term buying opportunity. This may be particularly true for the biotech segment that, despite weathering the storm better than other segments, has had its share of price declines. During the past several weeks, great biotech stocks, from small early stage companies to fully commercialized companies have been thrown out of portfolios like bad auction rate securities, but the truth is that the value proposition of most of these biotechs did not change at all, and is not likely to change as a result of market conditions. This is why current prices create the best opportunity to get into the biotech segment since 2002.

In the past, the pharmaceutical segment served as a safe haven at times like these, based on the notion that drug sales, especially those for the treatment of serious illnesses, remain unaffected by recession. Unfortunately, most pharmaceutical companies are in the midst of an innovation crisis, where their traditional blockbusters are gradually being cannibalized by generic competition, so the next couple of years will be very challenging for them, recession or no recession. Consequently, investors may want to look for growth in the relatively new entrants to the field – biotech companies. 

 

Biotech companies can be divided into two groups, each has its own merits and pitfalls.

The first group includes fully commercialized companies with a healthy balance sheet and cash generating products. These include all the big biotech companies such as Genentech (DNA), Amgen (AMGN) and Gilead (GILD). Because these companies can be found in every typical portfolio, they all got hit pretty badly from the recent sell-off due to indiscriminate panic selling. Nevertheless, the impact of an anticipated recession will have on these companies, who are selling drugs that address diseases such as cancer and AIDS, will be marginal.

 

The second group consists of smaller, development stage companies, with no commercially available drugs and several cash consuming development programs. The good news is that fundamentally, these companies have nothing to do with the global economy because they are not selling anything. The bad news is that they have to constantly find resources to finance the costly development of their drug candidates. Thus, the most important implication a market crisis has on this kind of companies is that it makes cash-raising almost impossible.

This is why investors should invest only in development-stage biotechs which have found a way around this problem. Some companies can generate cash from licensing their technology or intellectual property, some, like Array (ARRY) and Poniard (PARD) arranged a line of credit, some, like Seattle Genetics (SGEN), were smart enough to do a secondary offering under good market conditions, some, like Exelixis (EXEL) and Immunogen (IMGN), licensed some of their products and have someone else paying for the development. 

Bearing in mind that in the foreseeable future, licensing of technology and products will be the preferred way of getting cash, it would particularly be wise to pay attention to companies with unpartnered assets that are generating robust data in clinical trials as well as to platform companies that can license their technology on a non-exclusive basis. Evidently, when small companies have one way of raising cash blocked, it might reduce their leverage position in the alternative route of partnering. However, thanks to the pressure traditional pharmaceutical companies are currently under, they are starved for new promising candidates, which means that a good drug candidate still has tremendous value in the eyes of big pharmas. A good example for such a promising candidate is Rigel (RIGL) Pharmaceutical’s R788 that showed impressive results in treating rheumatoid arthritis, a disease with a market size exceeding $ 10 billion. Another good example for that may be Arqule’s (ARQL) ARQ-197, which already demonstrated its potential in a wide array of cancers and has a blockbuster potential.      

 

In order to put this approach to the test, I asked Pontifax’s Ran Nussbaum his help in building a virtual portfolio of promising biotech stocks. This portfolio is not intended for short term trading, but for long term investment of at least several years. Although we do not expect active trading in this portfolio, from time to time there may be changes as additional stocks will be added and existing holdings may be sold. Any future changes can be made only when markets are closed. On a more cautionary note, regardless of the attractiveness of all of these companies, all the inherent risks associated with biotech remain, including long time to market and statistically low success rates.

 

                                        Biotech Portfolio as of October 9th 2008

model_portfolio_-_oct_9th_2008.PNG

 

 

 

Another Seal of Approval For Micromet

Sunday, August 17th, 2008


 

There is always a debate regarding market efficiency and to what extent stock prices represent the available information about a company. Micromet’s (MITI) surge last week shows that in some cases, the market is far from being efficient. The spike of more than 35% in the last two trading sessions is attributed to the publication of a short article in Science Magazine, one of the world’s most prestigious scientific journals. The article contained clinical data from an ongoing phase I trial of Micromet’s lead candidate, MT103 (partnered with Medimmune). The data was spectacular, showing a strong, dose dependent response in concert with a good safety profile, exactly the kind of data that can put a small biotech in the spotlight. Ironically, the article contained data which has already been presented more than two months ago at the ICML in Switzerland.

 

Regardless of whether market reaction was justified, publishing clinical data at such an early stage in Science should be viewed as an indication for the scientific community’s embrace of Micromet and its BiTE platform. The BiTE platform relies on monoclonal antibodies for stimulating the patient’s immune system to attack cancer cells that have managed to evade or suppress the body’s immune response. Although most attention is given to the first product from the platform, MT103, it can generate an unlimited number of agents against a variety of cancers, making it a potential revolution in the way cancer is treated.

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Micromet Continues To Over-Deliver

Thursday, June 5th, 2008

In an industry where most companies over-promise and under-deliver, a company that exceeds even the most optimistic expectations is a unique phenomenon. This morning, while most eyes were still turned towards Chicago following ASCO, Micromet (MITI) managed to present another impressive set of clinical data in the picturesque town of Lugano, Switzerland. The data is from an ongoing phase I trial for the evaluation of the company’s lead product, MT103, in Non-Hodgkin’s Lymphoma (NHL), a trial which had already produced impressive results.

Although the actual scientific poster is not yet publically available, according to the company’s recent press release, MT103 led to an impressive clinical response among 7 heavily pre-treated NHL patients. When given MT103 at the highest dose so far in the trial, all 7 patients achieved a significant reduction in tumor burden in the form of either a complete or partial response. Importantly, those responses are durable and are currently ongoing in all seven patients, with the longest remission ongoing for more than one year.

Evidently, the data is still very preliminary, as it is being derived from a small non-controlled phase I trial. Nevertheless, having 100% clinical activity with such durability in such a late-stage patient population bodes extremely well for the prospects of MT-103. More importantly, this is yet another validation of Micromet’s revolutionary BiTE platform, which can be utilized to develop an unlimited number of drug candidates for various cancer types.

Author is long MITI

Immunogen and Seattle Genetics – On The Verge Of An Inflection Point

Thursday, May 22nd, 2008

 

This year’s ASCO annual meeting should be a very exciting event for anyone who has been following the field of antibody-drug conjugates (ADCs). During the conference, investigators will present impressive clinical data generated by ADCs powered by Immunogen’s (IMGN) and Seattle Genetics’ (SGEN) technologies. The data includes studies for Genentech’s (DNA) T-DM1, Seattle Genetics’ SGN-35 and Curagen’s (CRGN) CR011-vcMMAE .  These data will put ADCs on the verge of transitioning from a remote niche to one of the hottest areas in oncology.

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Micromet - Biting Cancer (Part II)

Tuesday, February 5th, 2008

BiTE Antibodies 

A BiTE (Bispecific T Cell Engager) antibody is a bi-specific antibody (bsAb) which directs T-cells to attack  cancer cells, by simultaneously binding the two cells. Upon binding, a physical link is created between  the two cells, which in turn triggers the T cell to attack the target cell. Every BiTE antibody has two binding arms, the first binds the CD3 receptor present on T-cells and the second binds a specific element on a cancer cell. The T-cell binding arm provides  the activity while the cancer binding arm provides the specificity. By changing the cancer binding arm, the BiTE antibody can be adapted not only from one type of cancer to another, but also from one target to another in the same type of cancer. Therefore, BiTE represents a universal and modular platform for producing bsAbs for an unlimited number of targets.

 As previously stated, bi-specific antibodies are aimed at recruiting immune cells against cancer. Therefore, one of the first decisions to be made concerns the type of immune cells to be recruited. The first attempts to develop bi-specific antibodies, mainly included recruiting T-cells, which are considered the most potent cells of the immune system. T cells play a critical role in the body’s efforts to eliminate malfunctioning cells such as cancer or virally infected cells, making them even more obvious candidates. (more…)

Micromet - Biting Cancer (Part I)

Tuesday, January 29th, 2008

    

Today it is clear that treating cancer with monoclonal antibodies is one of the greatest advancements in oncology. Just over a decade ago, the approval of Rituxan marked  the birth  of a multi-billion dollar market, as 8 additional antibodies have since joined Rituxan. The market is currently dominated by a specific flavor of antibodies termed “naked” antibodies, which represent a fraction of the large amount of  different antibody flavors. In contrast to naked antibodies, other flavors have yet to reach maturity,  although some of these are making their way steadily to the center stage. All these approaches have one thing in common: They rely on antibodies’ exquisite ability to recognize and bind a target in a very specific manner. One of these approaches, represented by Immunogen (IMGN) and Seattle Genetics (SGEN), deals with Antibody-drug conjugates (ADCs), which are constructed by linking antibodies to a drug-payload. The antibody serves as a guiding system by guiding the drug to tumors, and releases it inside cancer cells. In addition, there is a lot of activity in developing additional antibody-based therapies that involve linking other types of substances to antibodies. For example, one possibility for boosting an antibody’s potency is linking it to a radioactive molecule like in GlaxoSmithKline’s (GSK) Bexxar case.  

 

In biotech, just like in other investment fields, it is important to recognize market trends, and identify emerging technologies and concepts. The problem with such cutting-edge technologies is that, regardless of how promising they seem, there is always an unknown period of incubation, in which the  technology migrates from basic research to the industry. If we take the whole antibody industry as an example, it took almost a quarter of a century from the scientific breakthrough that gave rise to monoclonal antibodies, to the approval of Rituxan. In the case of ADCs, several encouraging results may imply that the incubation period is finally over, although drug development is always characterized with a high level of uncertainty. As someone who has been following the antibody market for quite some time now, I assumed that ADCs such as T-DM1 will represent the majority of clinical breakthroughs in the coming years. However, preliminary results from a small clinical trial that were published in ASH three months ago, showed that there is a unique platform which can generate highly potent antibodies, without even linking them to drugs or other effector molecules. In fact, this platform gave rise to one of the most potent antibodies ever tried on human beings -  Micromet’s (MITI) MT103.

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The Real Star of ASH 2007 – Micromet

Thursday, December 13th, 2007

 

A lot of clinical data was published at the American Society of Hematology (ASH) meeting, some of it quite impressive. Naturally, established drugs such as Millennium Pharmaceuticals‘ (MLNM) Velcade, Genentech’s (DNA) Rituxan and Celgene’s (CELG) Revlimid got most of the attention. In my opinion, the real star of the conference is MT-103 which is being co-developed by Micromet (MITI) and MedImmune, the biologics division of AstraZeneca (AZN). I won’t go too deep into describing the mechanism of action and the platform based on which MT-103 is built (I intend to do that in a review I hope to publish next week). However, the clinical data presented by Micromet is so impressive and so groundbreaking from several perspectives, that it must not be ignored.

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SGEN’s Preclinical Programs

Sunday, December 9th, 2007

 

CD70 program

CD70 is a receptor expressed on many types of blood cancers as well as the majority of renal cancer cases. The expression profile of this target is highly restricted to cancer cells, which, combined with its ability to internalize antibodies, makes it a desirable target for ADCs. Seattle Genetics is evaluating a naked antibody as well as an ADC that target CD70, both candidates are based on the same antibody, which was licensed from CLB-Research and Development. The naked antibody, SGN-70, is evaluated for certain blood cancers and is expected to enter phase I during 2008. Another possible use for SGN-70 is for autoimmune diseases, as it is expressed on white blood cells that are involved in the disease, but not on “resting” cells.

SGN-75 is an ADC based on SGN-70, which is currently evaluated pre-clinically for Renal cell carcinoma. This disease, although not as common as prostate and lung cancers, represents a large market opportunity with over 43,000 new cases and almost 13,000 deaths expected in 2007 in the US alone. Although surgical resection of the kidney has high chances to prevent the disease from spreading, nearly one third of patients are diagnosed at advanced stage, where the cancer has spread to additional organs. In addition, more than 30% of patients who undergo resection will eventually develop metastatic disease, for which very few therapeutic options exist. SGN-75 is expected to enter the clinic only in 2009.

 

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SGEN’s partnership with MedImmune

Sunday, December 9th, 2007

 

The partnership with MedImmune, which dates back to 2005, is probably Seattle Genetics’ second most important partnership. On the scientific side, now that MedImmune has been merged with Cambridge Antibody Technology [CAT] to form AstraZeneca’s (AZN) biologics division, Seattle Genetics has a real antibody powerhouse on its side. On the financial side, Seattle Genetics could benefit from another pharma giant on its partner list, equipped with the 8th largest R&D budget in the industry and consequently the ability to support multiple clinical programs simultaneously. Looking at Immunogen’s partnership with Sanofi-Aventis, which has thus far led to 3 clinical programs, is making us hope that AstraZeneca will be to Seattle Genetics, what Sanofi is to Immunogen.

The cooperation with MedImmune originally revolved around one target – EphA2. This intriguing target is highly expressed in numerous solid cancers including breast, prostate and colorectal, which makes the potential opportunity immense. In addition, there is a growing body of scientific evidence that expression of EphA2 is associated with aggressiveness and poor survival, which makes its targeting very reasonable in advanced stages of the disease. The specific targeting of EphA2 looks particularly promising since MedImmune’s scientists discovered that there are several regions within EphA2 which become exposed and consequently accessible for antibodies only on cancer cells.

MedImmune views Epha2 as a very important target. In fact, it has such high hopes for it, that there it is currently evaluating multiple approaches to targeting this promising antigen. One of these approaches is Micromet’s (MITI) Bite (stands for: Bi-Specific T cell Engager) platform, which is being co-developed with Medimmune for several targets, one of which is EphA2. The Bite Platform, a very interesting technology (that deserves an article of its own being so different from other antibody-based platforms) consists of two small antibodies that link between a tumor and specific immune cells in order to manipulate them to attack the tumor. It has demonstrated very impressive potency in mice, and even more impressive results among heavily pre-treated NHL patients, mainly due to the very low doses that showed a clinical effect. The Bite platform hasn’t been evaluated in solid tumors yet, but clinical trials are expected to be announced in the future, one of them is for a Bite agent that targets Epha2. Due to its unique characteristics that present both advantages and disadvantages, it is very hard to predict Bite’s efficacy in these settings. Although some consider Bite an immunotoxin, it differs from immunoconjugates in that it does not contain any drug or toxin payload, so it is reasonable to expect that MedImmune will explore it in parallel to Seattle Genetics’ platform. Although Bite is not necessarily a direct competitor, I bet the folks at Seattle Genetics are following that program closely. Nevertheless, MedImmune seems pretty happy with Seattle Genetics’ platforms, as it has recently licensed Seattle Genetics’ ADC technology for a second undisclosed target.

 

Author is long SGEN

Sanofi-Aventis’ SAR3419 - In partnership with Immunogen

Thursday, October 18th, 2007

SAR3419, which entered clinical trials just recently, is an ADC comprised of an antibody that targets CD19 and the toxic agent DM4. CD19 is broadly expressed through many types of B-lymphoid malignancies but not on normal B cells. To date, several anti CD19 antibodies were evaluated pre-clinically as well as in clinical trials but did not show a great deal of clinical effect. In addition, CD19 was shown to internalize after an antibody binds it, which makes it a suitable target for Antibody-drug conjugates.

SAR3419 is being developed by Sanofi-Aventis for the treatment B-cell hematological malignancies, including non-Hodgkin’s lymphoma [NHL] and acute lymphoblastic leukemia [ALL]. The huge potential in this market can be demonstrated by the success of Genentech’s Rituxan®, which had worldwide sales of just under 4$ billion in 2006. Since Rituxan’s target (CD20) is different than SAR3419’s, these agents are not necessarily competitors, but even may have a synergistic effect. Even if SAR3419 is found to be clinically active, it might face a tough competition from Micromet’s (MITI) promising anti CD19 bispecific antibody, MT103, which has already shown promising results among NHL patients.

 

Author is long IMGN