11/7/14

Developing first comprehensive guidelines for management of sickle cell disease


The National Heart, Lung, and Blood Institute has released the first comprehensive, evidence-based guidelines for management of sickle cell disease from birth to end of life. Sickle cell anemia is the most common form of sickle cell disease, a serious disorder in which the body makes sickle-shaped red blood cells.

 

Shirley Miller with Dr. George Buchanan, Professor of Pediatrics and Internal Medicine, holder of the Children's Cancer Fund Distinguished Chair in Pediatric Oncology & Hematology.

 The National Heart, Lung, and Blood Institute (NHLBI) has released the first comprehensive, evidence-based guidelines for management of sickle cell disease from birth to end of life, based on recommendations developed by a nationwide team of experts co-chaired by a UT Southwestern Medical Center hematologist.

 Appearing today in JAMA, the guidelines are intended for general use by pediatricians, physicians treating adults, hematologists, emergency room personnel, hospitalists, and other health care providers. The new management guidelines consist of more than 500 specific directions for physicians who are caring for patients with sickle cell disease.
"The aim is to improve the care of all people with sickle cell disease, young and old, and to raise awareness among the entire medical profession regarding the need for better care and more research, so that someday everyone with sickle cell disease can receive the best possible care and lead a normal and productive life," said Dr. George Buchanan, Professor of Pediatrics and Internal Medicine.

Although currently most patients are diagnosed at birth and survive until adulthood, many sickle cell disease patients die in their 30s and 40s of acute complications or chronic organ damage. Dr. Buchanan and the team of expert panelists want to alter that statistic through improved and comprehensive treatment.

One survivor who beat those numbers is 58-year-old Shirley Miller, who worked at UT Southwestern with Dr. Buchanan from 2002 to 2010 as a program manager, patient advocate, and outreach coordinator.

"I lived my life in fear because I thought age 30 was it. I wasted a lot of time wondering how the end would happen. My parents never told me my life expectancy; I went to the library and looked it up," said Ms. Miller, who is now helping to launch a comprehensive sickle cell adult program in Charlotte, North Carolina.

Diagnosed at age three, and the only one of five siblings with the disease, she grew up without physical education classes and did not participate in sports. She made friends slowly and was embarrassed when others went through puberty before her. She credits her parents with helping her believe she could make it, and she credits the care she later received as an adult at UT Southwestern.

"Comprehensive care is the key to successful management of sickle cell disease, known as sickle cell disease. Currently, there are not enough physicians who specialize in the care of adults with sickle cell disease, which means that many are seen by primary care physicians or other specialists," said Ms. Miller. "These guidelines will provide physicians with a tool for basic understanding of the disease etiology and possible complications to look for when managing a patient. I attribute my survival to the comprehensive care that I received from this teaching and research university, which is on the cutting edge of so many developments. The knowledge and expertise available here have made all the difference."

The expert panel for the new guidelines is a 12-member team, all known for their experience in diagnosing and treating people with sickle cell disease. Panel members included two pediatric hematologists, four adult hematologists, an obstetrician, a psychiatrist, an emergency department nurse, two blood transfusion specialists, and one family physician. These experts were supported by a large staff of NHLBI leaders and other personnel, including experts in finding and analyzing the available scientific evidence that could help improve the lives of people with sickle cell disease.
Sickle cell disease is the world's most common serious condition due to a single gene mutation. An estimated 70,000 to 100,000 people in the U.S. have sickle cell disease. Of these, about 1,000 receive care annually at UT Southwestern. Dr. Buchanan has led the institutional pediatric and research sickle cell disease programs for 37 years.

More than 2 million Americans carry the sickle cell trait.
"African-Americans are far more likely than Caucasians to have the sickle cell trait, which is not a disease but a carrier state. One has to receive a copy of the abnormal gene from both parents to have the disease," said Dr. Buchanan, who holds the Children's Cancer Fund Distinguished Chair in Pediatric Oncology & Hematology.
"Every state now has mandatory newborn screening for the disease," said Dr. Buchanan, Director of the Barrett Family Center for Pediatric Oncology at UT Southwestern.
Dr. Buchanan was instrumental in ensuring that Texas became the third state to adopt newborn screening in 1983. Approximately 150 infants with sickle cell disease are diagnosed in Texas each year. Nearly one third of them receive their care at Children's Medical Center in Dallas.

When sickle cell disease progresses, it can delay puberty and cause acute and chronic complications, including debilitating pain, life-threatening infections, damage to vital organs, and stroke. Stem cell transplants offer a potential cure; however, the high cost, lack of suitable donors (ideally the donor is a sibling), and the risk of complications make these transplants relatively infrequent. The newly published comprehensive guidelines recommend better pain control; prevention and treatment of acute and chronic complications; general health maintenance; judicious use of blood transfusions; and teaching patients to manage their disease through behavioral changes.

The committee also strongly advocates for prescribing hydroxyurea, an oral medication taken once daily that has become the standard of care. Hydroxyurea reduces the impact of the disease by improving the anemia, and reducing the risk of pain events and acute chest syndrome. It can also decrease the need for transfusions and hospital admissions.
"These national guidelines are directed not just to hematologists but to all medical practitioners who might encounter sickle cell disease patients, to inform them about hydroxyurea and how to best offer general medical care to them," Dr. Buchanan said. "We have a lot of work to do to educate physicians."

September is National Sickle Cell Awareness Month, and the guidelines will be discussed and disseminated at professional conferences, as well as being available on the NHLBI website and in JAMA, the journal of the American Medical Association.
According to NHLBI, sickle cell anemia is the most common form of sickle cell disease, a serious disorder in which the body makes sickle-shaped red blood cells. "Sickle-shaped" means that the red blood cells are shaped like a crescent. Normal red blood cells are disc-shaped and look like doughnuts without holes in the center, moving easily through blood vessels. Red blood cells contain an iron-rich protein called hemoglobin, which carries oxygen from the lungs to the rest of the body. Sickle cells contain abnormal hemoglobin called sickle hemoglobin or hemoglobin S. They tend to block blood flow in the blood vessels of the limbs and organs, causing pain, organ damage, and increased risk for infection. In the U.S., the disease occurs in about one out of every 500 African-American births and in more than one out of every 36,000 Hispanic-American births.

Story Source:
The above story is based on materials provided by UT Southwestern Medical Center. Note: Materials may be edited for content and length.

11/5/14

New Guidelines for Sickle Cell Disease

An expert panel has issued new guidelines for managing sickle cell disease, stressing the use of the drug hydroxyurea and transfusions for many with the genetic disorder.

By Kathleen Doheny
HealthDay Reporter
 “This is a major step forward to try to put together all of the evidence and try to highlight what is most important,” said Dr. Barbara Yawn, professor of family and community health at Olmsted Medical Center in Rochester, Minn. Yawn was also co-chair of the panel convened by the U.S. National Heart, Lung, and Blood Institute to develop the new guidelines.

As many as 100,000 Americans have sickle cell disease, according to background information with the guidelines. In sickle cell disease, the body makes sickle-shaped or crescent-shaped red blood cells. Normal red blood cells are disc-shaped, like a doughnut without holes, allowing the cells to move easily through blood vessels.
Sickle cells are stiff and sticky and tend to block blood flow, leading to organ damage, pain and increased risk of infection and strokes, among other problems. Black people are more commonly affected than other people.

The expert panel reviewed more than 12,000 scientific articles and sifted through the evidence to issue the new blueprint for care. The new guidelines are published Sept. 10 in the Journal of the American Medical Association.

One of the new recommendations is to give children oral penicillin daily until age 5. This is a preventive measure, aiming to reduce the risk of pneumonia and other infections.
“That has been the standard for a while now,” Yawn said. “Now we are saying ‘This is an absolute necessity.'”

In addition, everyone with sickle cell disease should be vaccinated against pneumonia, according to the guidelines. “The children need pneumococcal vaccine as early as they can possibly get it, around six weeks of age,” Yawn said.

Children from ages 2 to 16 should have an annual exam known as a transcranial Doppler, which measures blood flow in the brain, the guidelines explain. If it’s abnormal, long-term transfusion therapy to prevent stroke is recommended. 

When acute complications occur, opioids (also known as narcotics) are suggested to treat the pain linked with blood flow blockage. A method of encouraging deep breathing — incentive spirometry — is also advised for those hospitalized with a blood flow crisis.
If adults have three or more severe blood flow crises in a year, treatment with the drug hydroxyurea is recommended. The drug works in sickle cell by helping to prevent the formation of sickle-shaped red blood cells. Hydroxyurea can be used in infants, children and teens, whether or not they currently have symptoms, according to the guidelines.

One difficulty in developing the guidelines, Yawn said, is that there is “not enough research to answer all the questions.”
People with sickle cell disease are living longer, she said. A generation ago, many with sickle cell disease only survived until their 20s or 30s. “We know there are more living into their 40s, 50s and 60s,” she said.
Dr. Michael DeBaun, professor of pediatrics and medicine at the Vanderbilt University School of Medicine, said, “These are really strong recommendations.”
DeBaun wrote an editorial to accompany the guideline report. “This should now be a road map of how your child should be cared for,” he said.
The information also applies for adults with sickle cell disease, said DeBaun, who is also director of the Vanderbilt–Meharry Sickle Cell Disease Center of Excellence.
He advises patients and parents to use the new guidelines to have a dialogue with the doctors providing care. “We expect these recommendations to change over time as more evidence becomes available,” DeBaun said.
In his own recent study, published in August in the New England Journal of Medicine, DeBaun and his colleagues reported that monthly blood transfusions appear to reduce the risk of strokes in children with sickle cell anemia, the most common form of sickle cell disease.

More information
To learn more about sickle cell disease, visit the U.S. Centers for Disease Control and Prevention.

6 causes of anemia during pregnancy

Gestational anemia or anemia during pregnancy is one condition that can affect a woman at any time during her pregnancy.



gestational anemia


While planning your pregnancy, you need to make sure that your health is at its optimum. This includes your blood count, fitness and management of various lifestyle related ailments. All this will ensure a smooth pregnancy and good health of both the mother and the child growing inside the womb. However, those nine months of pregnancy aren’t predictable, and health complications can arise at any time. Gestational anemia or anemia during pregnancy is one such condition that can affect a woman at any time during her pregnancy.

Here are a few causes that could lead to the same:
Deficiency of iron
Iron deficiency during pregnancy is a common cause of gestational anemia. This happens when the body is unable to produce enough iron to produce adequate hemoglobin. Hemoglobin is a protein that is present in the red blood cells. During pregnancy the blood supply in the body almost doubles up to meet the requirements of the mother and that of the growing baby. The hemoglobin in the blood is responsible for nutrient and oxygen exchange between a mother and the baby. It is also responsible for oxygen circulation in the mother to restore health during pregnancy. During pregnancy the iron requirement for a woman increases and one might need around 30 to 38 mg of iron either through dietary sources or by having iron supplements regularly. Here are reasons why you need to be regular with iron medications during pregnancy.

Deficiency of folic acid
Everyone knows the importance of folic acid during pregnancy. It is a type of B vitamin that helps produce new cells including healthy red blood cells. Therefore, during pregnancy a woman needs more folate. It is recommended that women take at least 400 mg of folate during pregnancy to avoid birth defects in babies. Folate or folic acid deficiency can lead to less production of red blood cells that could hamper oxygen and nutrient supply to the fetus and result in severe birth defects like neural tube abnormalities or spina bifida and lead to low birth weight of the baby. This kind of anemia can be easily corrected by taking folic acid pills or through proper diet management. Here are reasons why you need folic acid during pregnancy. 

Vitamin B 12 deficiency
Vitamin B 12 is an important vitamin for pregnant women that plays a major role in producing healthy red blood cells. Lack of Vitamin B 12 in the diet could give rise to the gestational anemia that could contribute to birth defects, such as neural tube abnormalities, and lead to preterm labor. Women who don’t eat meat, poultry, dairy products, and eggs have a greater risk of developing vitamin B12 deficiency. Here are other seven diet essentials you should take during pregnancy.  

Having twins
Mothers who are carrying twins or triplets need special care to meet the demands of their growing babies. Improper diet and ignorance of medications can lead to various health complications and gestational anemia could be one of them. Women with twins or triplets are always at risk of developing complications during pregnancy.

Improper diet
Gestational anemia as mentioned above could be easily avoided with proper diet management and being regular with medications. Irregularities in diet especially failing to get enough iron, folate and vitamin B 12 could lead to the gestational anemia in women. Know more about the causes, symptoms and treatment of anemia during pregnancy.

Being anemic before conception
If you were anemic or had lower hemoglobin count prior to conception you could be at a risk of developing gestational anemia. Even with adequate hemoglobin count during the start of pregnancy it is possible to suffer from gestational anemia. This happens due to altered body mechanism and the various hormonal changes. It is imperative to check with your doctor about medications and management of anemia during pregnancy, especially if you had suffered from the same before.

11/4/14

Educational Webcast on Beta-thalassemia

An online seminar lead by Prominent hematology expert, Ellis Neufeld, M.D., Ph.D.


Acceleron Pharma Inc. (NASDAQ:XLRN), a clinical stage biopharmaceutical company focused on the discovery, development and commercialization of novel protein therapeutics for cancer and rare diseases,hosted an educational webcast seminar on beta-thalassemia with Ellis Neufeld, M.D., Ph.D on 17.10.2014. Acceleron and its collaboration partner, Celgene, are conducting phase 2 clinical trials of sotatercept and luspatercept in patients with beta-thalassemia, MDS, and end-stage renal disease with mineral and bone disorder.

Dr. Neufeld currently serves as Associate Chief of the Hematology/Oncology Division and Co-Chief of the Clinical Research Center at Boston Children’s Hospital, Director of the Boston Hemophilia Center, and is the Egan Family Foundation Professor of Pediatrics at Harvard Medical School.

Dr. Neufeld provided an overview of beta-thalassemia including the numerous clinical complications of the disease, current treatment and a review of the recently presented data from the sotatercept and luspatercept phase 2 studies in beta-thalassemia.

 To access the recorded webcast, please visit the "Events & Presentations" page in the Investors & Media section on the Company's website (http://investor.acceleronpharma.com/events.cfm).

First Patient with Sickle Cell Disease Transplanted with LentiGlobin Gene Therapy

bluebird bio Announces First Patient with Sickle Cell Disease Transplanted with LentiGlobin Gene Therapy


CAMBRIDGE, Mass.--(BUSINESS WIRE)--Oct. 14, 2014-- bluebird bio, Inc. (Nasdaq: BLUE) a clinical-stage company committed to developing potentially transformative gene therapies for severe genetic and orphan diseases, today announced that the first subject with severe sickle cell disease has undergone infusion with bluebird bio’s LentiGlobin BB305 drug product in an autologous hematopoietic stem cell transplantation. This patient is enrolled in the HGB-205 Study being conducted in Paris, France. bluebird has also opened a separate US-based trial (HGB-206) in the United States for the treatment of up to 8 severe sickle cell disease patients with the company’s LentiGlobin BB305 drug product.

“We are treating a sickle cell patient for the first time with gene therapy,” stated Marina Cavazzana, MD, PhD, Professor of Medicine at Paris Descartes University and Research Director at the Centre for Clinical Research in Biotherapy, Necker Hospital, and at the Institute of Genetic Diseases, Imagine, Paris France. “Sickle cell disease is a devastating disease that affects hundreds of thousands of people in the US and Europe and millions around the world. The therapeutic options for patients with sickle cell disease are currently limited, so the opportunity to bring a one-time, potentially curative treatment to these patients by modification of autologous hematopoietic stem cells would represent a great advance for patients with sickle cell disease and for the field.”
“Sickle cell disease shortens life expectancy by decades even in developed countries, so it is exciting to contemplate that LentiGlobin may offer the curative potential of allogeneic stem cell transplantation by using a patient’s own cells,” stated David Davidson, MD, bluebird bio’s Chief Medical Officer. “In June 2014, we reported preliminary results from the HGB-205 Study demonstrating that treatment with LentiGlobin drug product led to high-level production of beta-T87Q-globin and rapid transfusion independence in two beta-thalassemia major patients. Given the anti-sickling property of the amino acid substitution engineered into beta-T87Q-globin, we are optimistic about the potential for LentiGlobin to mitigate the signs and symptoms of sickle cell disease. We anticipate providing initial clinical data on LentiGlobin in sickle cell disease patients in 2015.”

About the HGB-205 Study
The phase 1/2 study is designed to evaluate the safety and efficacy of LentiGlobin BB305 drug product in the treatment of subjects with beta-thalassemia major and severe sickle cell disease. The study is designed to enroll up to seven subjects. Subjects will be followed to evaluate safety and transfusion requirements post-transplant. In sickle cell disease patients, efficacy will also be measured based on the frequency of vaso-occlusive crises or acute chest syndrome events.
For more information on the HGB-205 Study, please visit www.clinicaltrials.gov using identifier NCT02151526.

About the HGB-206 Study
The phase 1 study is designed to evaluate the safety and efficacy of LentiGlobin BB305 drug product in the treatment of subjects with severe sickle cell disease. The study is designed to enroll up to eight subjects. Subjects will be followed to evaluate safety and efficacy will be measured based on changes in red cell function tests, hemolysis markers and frequency of clinical events secondary to sickle cell disease (e.g. vaso-occlusive crises or acute chest syndrome events).
For more information on the HGB-206 Study, please visit www.clinicaltrials.gov using identifier NCT02140554.

About sickle cell disease
Sickle cell disease (SCD) is a hereditary blood disorder resulting from a mutation in the beta globin gene that causes polymerization of hemoglobin proteins and abnormal red blood cell function. The symptoms of SCD include anemia, vaso-occlusive crises and strokes. The global incidence of SCD is estimated to be 250,000 to 300,000 births annually, and the global prevalence of the disease is estimated to be about 20 to 25 million.

About bluebird bio, Inc.
bluebird bio is a clinical-stage company committed to developing potentially transformative gene therapies for severe genetic and orphan diseases. bluebird bio has two clinical-stage programs in development. The most advanced product candidate, Lenti-D, is in a recently-initiated phase 2/3 study, the Starbeam Study, for the treatment of childhood cerebral adrenoleukodystrophy (CCALD), a rare, hereditary neurological disorder affecting young boys. The next most advanced product candidate, LentiGlobin, is currently in two phase 1/2 studies, one in the US (the Northstar Study) and one in France (HGB-205), for the treatment of beta-thalassemia major. The phase 1/2 HGB-205 study also allows enrollment of patient(s) with sickle cell disease, and bluebird bio is conducting a separate U.S. sickle cell disease trial (HGB-206).

bluebird bio also has an early-stage chimeric antigen receptor-modified T cell (CAR-T) program for oncology in collaboration with Celgene Corporation.
bluebird bio has operations in Cambridge, Massachusetts, Seattle, Washington, and Paris, France. For more information, please visit www.bluebirdbio.com .