Targeted therapy proves effective against aggressive rare blood cancer

A multi-institutional clinical trial has given good results for a targeted therapy to treat a rare, aggressive blood cancer known as blastic plasmacytoid dendritic-cell neoplasm (BPDCN). Details on the trial, which supported Food and Drug Administration approval of the tagraxofusp therapy in December 2018, have been published in the New England Journal of Medicine.

Diagnosed in several hundred people in the United States each year, BPDCN is a cancer of dendritic cells — a type of immune cell. BPDCN has some of the features of leukemia and lymphoma, and typically produces skin tumors as well. The standard treatment is chemotherapy, with the goal of proceeding to allogeneic stem cell transplants. However, the median age of diagnosis is about 65, and many patients are not robust enough for the intensive chemotherapy usually required to prepare for stem cell transplant.

“The response rate to this drug was quite high, particularly in patients who had not previously been treated,” said Andrew Lane, MD, PhD, co-first author of the paper and director of Dana-Farber’s BPDCN Center.

Notably, among 29 previously untreated patients with BPDCN who were given a recommended dose of tagraxofusp therapy, 45% did well enough to proceed to stem cell transplants — until recently, the best known hope for treating the cancer in the long-term. At the time the paper’s analysis was completed, the overall survival rate for this population was 59% at two years, which compares favorably with typical survival rates.

Tagraxofusp is a biological therapy that targets a protein known as CD123 that is over-expressed by BPDCN tumor cells but not on other immune cells. The therapy includes a diphtheria toxin to kill the tumor cells.

Phase 1 of the trial recruited participants with either BPDCN or acute myeloid leukemia. They were infused with 7 or 12 micrograms per kilogram of body weight of tagraxofusp, daily for five days of a 21-day cycle. Among 47 patients overall treated for BPDCN in both phases of the trial, 32 had not been previously treated and 15 had been treated. The trial’s primary outcome for BPDCN was a combination of complete response and “clinical complete response” among previously untreated patients. (To achieve clinical complete response, signs of the disease had to disappear in every site except the skin, where it was no longer active.)

In the 29 first-line patients given the 12 microgram dose, the overall response rate was 90%. Among previously treated patients, the response rate was 67% and median overall survival was 8.5 months.

“We treated patients up to the age of mid-80s, and there was no obvious difference in toxicity by age, which is not the case in standard chemotherapy,” said Lane. “Unlike standard chemotherapy, there doesn’t seem to be a cumulative toxicity with this drug. In fact, its side effects are most prominent in the first treatment cycle.” Patients who didn’t become eligible for a stem cell transplant often stayed on tagraxofusp for many cycles, with two patients remaining on the drug for over a year.

The drug’s most significant side effect was a potentially dangerous condition known as capillary leak syndrome. During the trial, the investigators tightened the inclusion criteria to ensure that participants displayed normal cardiac function. Additionally, the researchers established procedures to detect and treat the syndrome during treatment.

Nine cancer centers participated in the study, gathering patients from all over the world. Co-first author on the paper is Naveen Pemmaraju, MD, and senior author is Marina Konopleva, MD, PhD, both of The University of Texas MD Anderson Cancer Center.

“We can celebrate this new drug; it’s great to have approval,” said Lane. “Still, we continue to work on improving outcomes for patients.” Among his ongoing research, he’s leading two other clinical studies of targeted therapies for BPDCN.

One trial is testing venetoclax, an inhibitor of a protein called BCL2 that helps to regulate cell death. Preclinical work showed that BPDCN might be vulnerable to BCL2 inhibition, and an off-label study of venetoclax (which is approved for chronic lymphocytic leukemia) showed promise in two BPDCN patients.

The second trial is for a therapy that binds to the CD123 protein and delivers chemotherapy directly to the BPDCN cells.

The Lane Laboratory is currently studying ways to effectively combine tagraxofusp with other drugs. Preclinical experiments showed that a class of drugs known as “hypomethylating agents” may be particularly promising. Lane is now heading a trial that pairs up tagraxofusp with one such agent to treat two other blood cancers, and this combination may eventually be tested with BPDCN patients.

Given BPDCN’s rarity and sometimes puzzling presentation, the disease was only officially defined by the World Health Organization in 2008. “Going from naming the disease to having a drug approved by the FDA in ten years is very encouraging,” said Lane.

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Modern analysis of ancient hearths reveals Neanderthal settlement patterns

Ancient fire remains provide evidence of Neanderthal group mobility and settlement patterns and indicate specific occupation episodes, according to a new study published in PLOS ONE on April 24, 2019 by Lucia Leierer and colleagues from Universidad de La Laguna, Spain.

Most paleolithic household activities are thought to have taken place around hearths or fires. The author of the present study chose to examine the Middle Paleolithic site El Salt in Spain, which contains eleven well-preserved and overlapping open-air hearth structures. It was previously unclear whether these hearths were formed during successive short-term site occupations or fewer, longer term occupations. The authors examined the micromorphology of the different layers within the hearth structures to assess occupation timings within the study unit and conducted both a lipid biomarker analysis and isotope analysis to gain information about potential food and fuel.

The results of the analyses show stratified hearths built on multiple different topsoils over different periods of time. The burned organic matter present at the El Salt hearths is rich in herbivore excrement and flowering plant residues. The presence of flint and bone shards, as well as conifer wood charcoal collected from trees not present at the site, provide evidence of limited activity at the site. The authors suggest these data indicate at least four successive short-term Neanderthal occupations separated by relatively long periods of time, potentially based around the seasons.

The authors suggest their molecular and micromorphological methods would work well at similar paleolithic sites where fires were built. Their findings provide evidence for successive short-term Neanderthal occupations at this site, and could inform our understanding of Neanderthal group mobility and settlement more generally.

Leierer adds: “Micromorphology combined with lipid biomarker analysis is a powerful approach to investigate anthropogenic combustion-related archaeological contexts from a microstratigraphic perspective which can contribute valuable information on the timing and intensity of Neanderthal occupations as well as the natural setting of the site. These are key factors of group mobility and settlement patterns.”

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Materials provided by PLOS. Note: Content may be edited for style and length.

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Health24.com | 5 common things that could be causing your shoulder pain

The shoulders are the most mobile joints in your body. But that mobility comes at a price: stability, says certified strength and conditioning specialist Matt Unthank. One in four women aged 20 to 55 complains of shoulder pain, according to BMC Musculoskeletal Disorders. And another study suggests that, at some point, about 20% of us will tear our rotator cuff.

As women, everything from how we’re built to how we live and train impacts our shoulder health. Here are the biggest everyday culprits and how to beat them.

Your phone

When you hunch over a screen (be it phone, tablet or computer), your head puts more than 25kg of pressure on your neck – rounding your shoulders forward and weakening the supportive back and shoulder muscles, Unthank says. Over time, they become weak and stretched out and you start complaining about “carrying everything” in your shoulders.

The fix: In one study of female office workers, performing a 20-minute shoulder- and neck-strengthening dumbbell workout three times a week for 10 weeks significantly reduced pain and improved function.

Read more: These are the 4 most common causes of your back pain

Your hormones

Yep, the gender gap hits the shoulder too. The hormone oestrogen affects collagen synthesis, making women’s joints laxer, easier to injure and slower to repair, says physiotherapist Jessica Hettler, a certified sports and orthopaedic specialist.

The fix: If you’re on the Pill, good news: hormonal contraceptives may significantly reduce the risk for ligament injury, according to research in the Orthopaedic Journal of Sports Medicine. Not on birth control? Hettler says you are most prone to ligament injury in the luteal phase (from ovulation until your period starts), so keep an eye on your form and intensity during that time of the month to help avoid injury.

Read more: 5 easy Pilates stretches that’ll finally sort out your stiff upper back

Your workout

When you’re flexing (or selfie-ing) in front of the mirror, it’s natural to focus on what’s most visible. But that means we tend to forget about the smaller stabiliser muscles that we can’t always see – like your subscapularis, which stabilises the shoulder and combats internal shoulder rotation (aka rounded shoulders).

The fix: Perform two pulling exercises (think rows and chin-ups) for every pushing exercise (like push-ups and chest presses) in your workout routine, Nelson says. This will help strengthen those crucial posterior muscles (the ones on the back side of your body) while also helping to combat muscular imbalances that can make your shoulders more susceptible to injury.

Read more: The number one reason why your shoulders are always killing you

Your handbag

“The tendons of the rotator cuff are like a pair of blue jeans: with poor care and a lot of use, the denim starts to wear out and become frayed,” Unthank says. “If you’re carrying a bag the same way every day, especially if it’s super heavy, you add load to those torn blue jeans, causing them to wear down quicker.”

The fix: Realistically, it’s a big ask to downsize your handbag. Instead, opt for wider straps if possible, wear your bag across your body whenever you can and switch shoulders every now and then, he says.

Read more: 4 ridiculously simple stretches that do INSANE things for your body

Your bra

If you’re a C cup or larger, your bra straps may have created grooves on top of your shoulders. Well, if not corrected, these can become permanent, actually deforming the shoulders’ muscle fascia, explains sports physiotherapist Dr Deirdre McGhee. “They can also become very painful,” she says.

The fix: Consider investing in bras with thicker or padded straps to reduce the amount of downward pressure on your shoulders, McGhee says. She also recommends regularly switching between straight straps and racerbacks so you aren’t stressing the exact same spot on your shoulders every single day.

This article was originally published onwww.womenshealthsa.co.za

Image credit: iStock

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‘Exhilarating’ implant turns thoughts to speech

The technology could eventually help those who have lost their voice to speak again.

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Health24.com | Food allergies can strike at any age

You might be surprised to learn that food allergies can start in adulthood and involve a food you’ve eaten without a problem for your entire life.

For adults as well as kids, the top – but not the only – food culprits are eggs, milk, peanuts, tree nuts, fish and shellfish, wheat and soy, according to the American College of Allergy, Asthma and Immunology.

Just as with childhood food allergies, you’ll need to do your best to avoid these foods and be prepared in case you inadvertently come into contact with one of them.

Signs of a severe allergic reaction

  • Hives or pale/bluish skin tone
  • Cramps and/or vomiting
  • Trouble swallowing or swelling of the tongue
  • Weak pulse
  • Feeling dizzy or faint
  • Shortness of breath, wheezing or coughing
  • Inability to breathe, and drop in blood pressure

The most serious reaction is called anaphylaxis, an extreme inability to breathe that can lead to shock. It is a life-threatening emergency. Keep in mind that allergic reactions can be unpredictable. Most happen within a few hours of contact, but some are instantaneous. It could take only a small amount of the allergen to cause swelling, hives or anaphylaxis. Also, your body could experience more than one type of reaction – your skin, gastrointestinal tract, heart and/or breathing could be affected.

So it’s important to call your doctor and ask about testing after any out-of-the-ordinary reaction to a particular food. If possible, write down what you ate, how soon afterward symptoms started and how long they lasted.

Allergy testing usually involves a combination of skin pricks and blood tests. Sometimes there may be a workaround. For instance, if a raw fruit or vegetable causes a reaction, you may be able to eat the food cooked because, for some people, heat neutralises the allergen.

Image credit: iStock

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Health24.com | Asparagus: A tasty spring veggie that boosts gut health

Asparagus is a great spring vegetable that can be a tasty side dish or the starring ingredient in a main course like risotto. And it’s more than just delicious – asparagus is great for digestive health, too.

It’s a prebiotic food, meaning it feeds the helpful bacteria that live in your gut. These good bacteria are responsible for everything from signalling your immune system and keeping digestion in check to producing vital B vitamins.

An easy side dish

When shopping for asparagus, look for spears that are free of blemishes and dry spots, and tips that are closed and firm. Use asparagus promptly – it can spoil quickly.

Miso asparagus is an easy side dish that can also be enjoyed as a main dish when served over salad or with sliced chicken. Miso is a paste made from fermented soybeans. It’s a probiotic food, which has similar health benefits. Though it has a high salt content, it’s typically used in small amounts. Find it at health food and Asian food stores as well as in the Asian food aisle of large supermarkets.

Miso Asparagus

  • 1 pound (450g) green asparagus, trimmed
  • 2 tablespoons sesame oil
  • 1 tablespoon miso paste
  • 1 tablespoon ginger, minced
  • 2 garlic cloves, minced
  • 2 tablespoons water

Warm a large skillet over medium heat. Heat the sesame oil, and then add the asparagus. Cook, covered, four to five minutes, turning often, until the asparagus has browned and is tender.

While the asparagus cooks, place the miso paste, ginger, garlic and water in a small bowl and whisk thoroughly. When the asparagus is done, transfer spears to a platter and top with the miso dressing. Serve immediately.

Yield: 2 servings

Image credit: iStock

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No sedentary screen time for babies, WHO says

Children under two should not be given screens or TV to keep them quiet, new guidelines say.

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Coventry neurosurgeon gave patient ‘appalling’ surgery

Doctors say his work on a woman now “virtually unable to walk” is deeply flawed.

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‘My hands and legs needed to go when I got meningitis’

Mike Davies spent 70 days in intensive care with meningococcal meningitis and septicaemia.

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Sociopath vs. Narcissist: Experts Explain the Difference

When people are “difficult” to be around, it’s easy to toss off labels like sociopath or narcissist—especially if the person seems to be totally full of themself or have no remorse for the way their actions might affect you. But while they share some similarities, sociopathy and narcissism are two distinct psychological disorders. Understanding them may make it easier to deal with someone who seems to be one or the other.

Sociopaths and narcissists: what they have in common

“Both sociopaths and narcissists have personality disorders, meaning that certain personality traits are so extreme that it causes harm to themselves or others, or causes multiple losses and failures in life, such as losing jobs or important relationships, or failing in school,” Aimee Daramus, PsyD, a Chicago-based licensed clinical psychologist, tells Health.

RELATED: What's the Difference Between a Psychopath and a Sociopath? An Expert Weighs In

People with both disorders value themselves above others, can't step outside their awareness of what they want and need, and consider others' feelings as secondary or a non-issue for them. They can also be charismatic and charming. But those traits are coming from different psychological places, and for different reasons.

Traits all narcissists share

“A narcissist is essentially somebody who is self-­obsessed to an extreme degree,” Darrel Turner, PhD, a forensic psychologist in Louisiana, tells Health. “This is someone who has a high level of confidence and belief in themselves, but to a very unhealthy and harmful extent—to the point at which it actually distorts their sense of reality about themselves, other people, and the world around them. It can also lead them into manipulative and exploitative behavior, because they will prioritize their own needs above anyone else’s.”

That definition can seem broad, especially with the #selfie generation and in today’s cutthroat work culture. But people frequently misuse the term narcissist. “Just because someone is ‘full of herself’ or takes advantage of others doesn’t necessarily mean they are a full­-blown narcissist,” says Turner.

RELATED: Narcissistic Abuse Is the Scary New Kind of Emotional Abuse You Need to Know About

To be diagnosed with narcissistic personality disorder, according to the Diagnostic and Statistical Manual of Mental Disorders V, someone would have an exaggerated sense of self-appraisal, set goals based on gaining the approval of others, set unreasonable high personal standards, lack empathy, be antagonistic, demonstrate feelings of entitlement, make excessive attempts to attract and be the focus of the attention of others, and firmly hold to the belief that they are better than others. It’s not a phase or a mood; it’s a lifelong disorder.

Above all is the narcissist’s need to be the most important, Daramus says. “That usually comes out of insecurity, but occasionally you get it coming out of a place of privilege, from someone who has genuinely never been exposed to the idea that other people matter,” she says.

What drives a sociopath

Sociopaths—people who are actually diagnosed with antisocial personality disorder—have many narcissistic characteristics, but this psychological disorder is typically much more dangerous. “Whereas a narcissist may occasionally harm people as a consequence of their self­-prioritization, the harm they cause to others is usually unintentional,” explains Turner. “More often than not, it’s a consequence of their self­-obsession rather than the motivator which drives them. A sociopath, on the other hand, essentially ‘gets off’ by hurting other people.”

RELATED: 10 Signs You Might Be a Narcissist

That doesn’t mean every sociopath is a serial killer. “It’s actually more common for a sociopath to be driven by a need to control and manipulate other people, to damage them in some way, and to gain money and power,” Turner says. “They are more likely to be in a parasitic or controlling/abusive relationship with a romantic partner; to engage in risky activities like drugs, problematic gambling, and promiscuous sex; to backstab and sabotage their colleagues at work; and to carry out financial fraud schemes.”

Someone with APD, according to the DSM-V, is egocentric, acts based on personal gratification, lacks empathy, is incapable of intimacy, and is manipulative, deceitful, callous, risk-taking, and impulsive. “A sociopath is someone who, on a biological level, is lacking awareness of others’ feelings, and isn’t all that interested in anybody else’s rules,” says Daramus. “They’re far more charming and exciting than most narcissists, whose charm is more superficial. Because of the lack of empathy, sociopaths feel little or nothing when they hurt or take advantage of others.”

Sociopaths are especially dangerous because they often go to great efforts to hide their true personality and appear likable, adds Turner. A true narcissist, on the other hand, often doesn’t—and couldn’t—try to hide what they are.

Given their psychological makeups, it’s unlikely that someone diagnosed with narcissistic personality disorder of antisocial personality disorder would think they need or ever seek help. If you suspect you’re dealing with someone who may have either disorder, don’t get swept up into their world view—and make sure to watch out for your own interests.

RELATED: What It Means to Be a High-Functioning Sociopath—and How to Tell if You Know One

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