FDA Approves Jatenzo (testosterone undecanoate) for Certain Forms of Hypogonadism

 The U.S. Food and Drug Administration  approved Jatenzo (testosterone undecanoate), an oral testosterone capsule to treat men with certain forms of hypogonadism. These men have low testosterone levels due to specific medical conditions, such as genetic disorders like Klinefelter syndrome or tumors that have damaged the pituitary gland. Jatenzo should not be used to treat men with “age-related hypogonadism,” in which testosterone levels decline due to aging, even if these men have symptoms that appear to be related to low testosterone. Jatenzo’s benefits do not outweigh its risks for that use.

“Jatenzo’s oral route of administration provides an important addition to current treatment options available for men with certain hypogonadal conditions who up until now have most commonly been treated with testosterone products that are applied to the skin or injected,” said Hylton V. Joffe, M.D, M.M.Sc., director of the Division of Bone, Reproductive and Urologic Products in the FDA’s Center for Drug Evaluation and Research. “But it’s important to emphasize that this drug should not, like other testosterone treatments, be used to treat older men with ‘age-related hypogonadism.’ The benefits of testosterone therapy, including Jatenzo, have not been established for this use, and Jatenzo’s effects on raising blood pressure can increase the risks of heart attack, stroke and cardiovascular death in this population.”

The efficacy of Jatenzo was demonstrated in a four-month clinical trial involving 166 men with hypogonadism. Study participants initially were given Jatenzo at a dose of 237 mg twice per day, and the dose was adjusted downward or upward to a maximum of 396 mg twice per day on the basis of testosterone levels. Eighty-seven percent of Jatenzo-treated men achieved an average testosterone level within the normal range, which was the primary study endpoint.

Jatenzo contains a boxed warning on its labeling stating that the drug can cause blood pressure to rise, increasing the risk of heart attack, stroke and cardiovascular death. Health care providers should consider a patient’s individual heart disease risks and ensure that blood pressure is adequately controlled before prescribing Jatenzo; they should also periodically monitor patient blood pressure during treatment. Jatenzo is currently one of two testosterone products that have this boxed warning. The FDA is requiring all testosterone product manufacturers to conduct blood pressure postmarketing trials to more clearly address whether these products increase blood pressure.

Common side effects, occurring in more than 2 percent of patients in the Jatenzo clinical trial, included headache, an increase in hematocrit (red blood cell count), a decrease in high-density lipoprotein cholesterol (“good” cholesterol), high blood pressure and nausea. An increase in prostate specific antigen (PSA) was also observed. Patients should have their hematocrit, cholesterol and PSA monitored regularly to check for changes. Those with benign prostate hyperplasia should be monitored for worsening of symptoms.

Ref: https://en.wikipedia.org/wiki/Testosterone_undecanoate

FDA Approves Jatenzo (testosterone undecanoate) for Certain Forms of Hypogonadism

FDA Approves Mavenclad (cladribine) Tablets for Multiple Sclerosis

In continuation of my update on Cladribine

The U.S. Food and Drug Administration,  approved Mavenclad (cladribine) tablets to treat relapsing forms of multiple sclerosis (MS) in adults, to include relapsing-remitting disease and active secondary progressive disease. Mavenclad is not recommended for MS patients with clinically isolated syndrome. Because of its safety profile, the use of Mavenclad is generally recommended for patients who have had an inadequate response to, or are unable to tolerate, an alternate drug indicated for the treatment of MS.

“We are committed to supporting the development of safe and effective treatments for patients with multiple sclerosis,” said Billy Dunn, M.D., director of the Division of Neurology Products in the FDA’s Center for Drug Evaluation and Research. “The approval of Mavenclad represents an additional option for patients who have tried another treatment without success.”

MS is a chronic, inflammatory, autoimmune disease of the central nervous system that disrupts communications between the brain and other parts of the body. Most people experience their first symptoms of MS between the ages of 20 and 40. MS is among the most common causes of neurological disability in young adults and occurs more frequently in women than in men.

For most people, MS starts with a relapsing-remitting course, in which episodes of worsening function (relapses) are followed by recovery periods (remissions). These remissions may not be complete and may leave patients with some degree of residual disability. Many, but not all, patients with MS experience some degree of persistent disability that gradually worsens over time. In some patients, disability may progress independent of relapses, a process termed secondary progressive multiple sclerosis (SPMS). In the first few years of this process, many patients continue to experience relapses, a phase of the disease described as active SPMS. Active SPMS is one of the relapsing forms of MS, and drugs approved for the treatment of relapsing forms of MS can be used to treat active SPMS.

The efficacy of Mavenclad was shown in a clinical trial in 1,326 patients with relapsing forms of MS who had least one relapse in the previous 12 months. Mavenclad significantly decreased the number of relapses experienced by these patients compared to placebo. Mavenclad also reduced the progression of disability compared to placebo.

Mavenclad must be dispensed with a patient Medication Guide that describes important information about the drug’s uses and risks. Mavenclad has a Boxed Warning for an increased risk of malignancy and fetal harm. Mavenclad is not to be used in patients with current malignancy. In patients with prior malignancy or with increased risk of malignancy, health care professionals should evaluate the benefits and risks of the use of Mavenclad on an individual patient basis. Health care professionals should follow standard cancer screening guidelines in patients treated with Mavenclad. The drug should not be used in pregnant women and in women and men of reproductive potential who do not plan to use effective contraception during treatment and for six months after the course of therapy because of the potential for fetal harm. Mavenclad should be stopped if the patient becomes pregnant.

Other warnings include the risk of decreased lymphocyte (white blood cell) counts; lymphocyte counts should be monitored before, during and after treatment. Mavenclad may increase the risk of infections; health care professionals should screen patients for infections and treatment with Mavenclad should be delayed if necessary. Mavenclad may cause hematologic toxicity and bone marrow suppression so health care professionals should measure a patient’s complete blood counts before, during and after therapy. The drug has been associated with graft-versus-host-disease following blood transfusions with non-irradiated blood. Mavenclad may cause liver injury and treatment should be interrupted or discontinued, as appropriate, if clinically significant liver injury is suspected.

The most common adverse reactions reported by patients receiving Mavenclad in the clinical trials include upper respiratory tract infections, headache and decreased lymphocyte counts. 

Ref : https://en.wikipedia.org/wiki/Cladribine

FDA Approves Mavenclad (cladribine) Tablets for Multiple Sclerosis

FDA Approves Spravato (esketamine) Nasal Spray for Treatment-Resistant Depression

  In continuation of my update on esketamine

The U.S. Food and Drug Administration   approved Spravato (esketamine) nasal spray, in conjunction with an oral antidepressant, for the treatment of depression in adults who have tried other antidepressant medicines but have not benefited from them (treatment-resistant depression). Because of the risk of serious adverse outcomes resulting from sedation and dissociation caused by Spravato administration, and the potential for abuse and misuse of the drug, it is only available through a restricted distribution system, under a Risk Evaluation and Mitigation Strategy (REMS).

"There has been a long-standing need for additional effective treatments for treatment-resistant depression, a serious and life-threatening condition," said Tiffany Farchione, M.D., acting director of the Division of Psychiatry Products in the FDA's Center for Drug Evaluation and Research. "Controlled clinical trials that studied the safety and efficacy of this drug, along with careful review through the FDA’s drug approval process including a robust discussion with our external advisory committees, were important to our decision to approve this treatment. Because of safey concerns, the drug will only be available through a restricted distribution system and it must be administered in a certified medical office where the health care provider can monitor the patient."

Patients with major depressive disorder who, despite trying at least two antidepressant treatments given at adequate doses for an adequate duration in the current episode, have not responded to treatment are considered to have treatment-resistant depression.

The Spravato labeling contains a Boxed Warning that cautions that patients are at risk for sedation and difficulty with attention, judgment and thinking (dissociation), abuse and misuse, and suicidal thoughts and behaviors after administration of the drug. Because of the risk of sedation and dissociation, patients must be monitored by a health care provider for at least two hours after receiving their Spravato dose. The REMS requires the prescriber and the patient to both sign a Patient Enrollment Form that clearly states that the patient understands they should make arrangements to safely leave the health care setting to get home and that the patient should not drive or use heavy machinery for the rest of the day on which they receved the drug. Additionally, Spravato must be dispensed with a patient Medication Guide that outlines the drug’s uses and risks.

The patient self-administers Spravato nasal spray under the supervision of a health care provider in a certified doctor’s office or clinic, and the spray cannot be taken home. The health care provider will instruct the patient on how to operate the nasal spray device. During and after each use of the nasal spray device, the health care provider will check the patient and determine when the patient is ready to leave.

The efficacy of Spravato was evaluated in three short-term (four-week) clinical trials and one longer-term maintenance-of-effect trial. In the three short-term studies, patients were randomized to receive Spravato or a placebo nasal spray. In light of the serious nature of treatment-resistant depresison and the need for patients to receive some form of treatment, all patients in these studies started a new oral antidepressant at the time of randomization and the new antidepressant was continued throughout the trials. The primary efficacy measure was the change from baseline on a scale used to assess the severity of depressive symptoms. In one of the short-term studies, Spravato nasal spray demonstrated statistically significant effect compared to placebo on the severity of depression, and some effect was seen within two days. The two other short-term trials did not meet the pre-specified statistical tests for demonstrating effectiveness. In the longer-term maintenance-of-effect trial, patients in stable remission or with stable response who continued treatment with Spravato plus an oral antidepressant experienced a statistically significantly longer time to relapse of depressive symptoms than patients on placebo nasal spray plus an oral antidepressant.

The most common side effects experienced by patients treated with Spravato in the clinical trials were disassociation, dizziness, nausea, sedation, vertigo, decreased feeling or sensitivity (hypoesthesia), anxiety, lethargy, increased blood pressure, vomiting and feeling drunk.

Patients with unstable or poorly controlled hypertension or pre-existing aneurysmal vascular disorders may be at increased risk for adverse cardiovascular or cerebrovascular effects. Spravato may impair attention, judgment, thinking, reaction speed and motor skills. Patients should not drive or operate machinery until the next day after a restful sleep. Spravato may cause fetal harm and women of reproductive potential should consider pregnancy planning and prevention; women should not breastfeed while being treated.

Esketamine is the s-enantiomer of ketamine. Ketamine is a mixture of two enantiomers (mirror image molecules). This is the first FDA approval of esketamine for any use. The FDA approved ketamine (Ketalar) in 1970.

Ref  https://en.wikipedia.org/wiki/Esketamine

FDA Approves Spravato (esketamine) Nasal Spray for Treatment-Resistant Depression

FDA Approves Rocklatan (netarsudil and latanoprost ophthalmic solution) for the Reduction of Intraocular Pressure in Open-Angle Glaucoma or Ocular Hypertension

In continuation of my update on latanoprost 

Aerie Pharmaceuticals, Inc. (NASDAQ:AERI) (Aerie or the Company), an ophthalmic pharmaceutical company focused on the discovery, development and commercialization of first-in-class therapies for the treatment of patients with open-angle glaucoma, retinal diseases and other diseases of the eye,   announced that the U.S. Food and Drug Administration (FDA) has approved Rocklatan (netarsudil and latanoprost ophthalmic solution) 0.02%/0.005% to reduce elevated intraocular pressure (IOP) in patients with open-angle glaucoma or ocular hypertension. 

Rocklatan is a once-daily eye drop that is a fixed-dose combination of latanoprost, the most widely-prescribed prostaglandin analog (PGA), and netarsudil, the active ingredient in Rhopressa (netarsudil ophthalmic solution) 0.02%, a first-in-class Rho kinase (ROCK) inhibitor specifically designed to target the trabecular meshwork (the eye’s principal drainage pathway). The diseased trabecular meshwork is considered to be the main cause of elevated IOP in open-angle glaucoma and ocular hypertension. Rhopressa® works by restoring outflow through the trabecular meshwork, while latanoprost increases fluid outflow through a secondary mechanism known as the uveoscleral pathway.

Aerie launched Rhopressa® in the United States in April 2018. The Company plans to launch Rocklatan™ in the United States in the second quarter of 2019.

“We are in the unique position of receiving FDA approval on a second glaucoma treatment less than a year from the U.S. launch of Rhopressa®,” said Vicente Anido, Jr., Ph.D., chairman and chief executive officer at Aerie. “Together, Rocklatan™ and Rhopressa® give us a broad therapeutic franchise, based on our ROCK inhibitor netarsudil, that addresses many of the needs of clinicians and patients in a wide variety of treatment settings. Our existing salesforce, which has been calling on U.S. eye-care professionals since last May, is very well positioned to introduce Rocklatan™ to these doctors and help them understand the clinical utility of both products in the care of their patients with glaucoma. We have also been working diligently on securing favorable reimbursement for our products, with Rhopressa® now enjoying broad commercial and Medicare Part D coverage, and Rocklatan™ already under review by major payers.”

The FDA approval of Rocklatan is based on data from two Phase 3 registration trials, MERCURY 1 and MERCURY 2. In these studies, Rocklatan™ achieved its primary 90-day efficacy endpoint as well as positive 12-month safety and efficacy results, demonstrating statistically superior IOP reduction over latanoprost and netarsudil at every measured time point. More than 60% of patients taking Rocklatan™ in the two MERCURY studies achieved an IOP reduction of 30% or more, a frequency that was nearly twice that achieved by participants taking latanoprost alone. Rocklatan™ also helped more patients get to low target pressures. Nearly twice as many patients taking Rocklatan™ reached 16 mmHg or lower and nearly three times as many reached 14 mmHg or lower compared to latanoprost.

In the two MERCURY studies, Rocklatan treatment was associated with generally mild and tolerable ocular adverse events, with minimal systemic side effects. The most common ocular adverse event in controlled clinical studies with Rocklatan™ was conjunctival hyperemia. Ninety percent of patients who experienced hyperemia reported it as mild and 5% discontinued because of it. Other common ocular adverse effects reported in the studies include instillation site pain, corneal verticillata and conjunctival hemorrhage.

About Rocklatan

Indications and Usage

Rocklatan (netarsudil and latanoprost ophthalmic solution) 0.02%/0.005% is indicated for the reduction of elevated intraocular pressure (IOP) in patients with open-angle glaucoma or ocular hypertension.

Select Important Safety Information

Although not observed in the two MERCURY studies, latanoprost has been reported to cause changes to pigmented tissues, including pigmentation of the iris, periorbital tissue (eyelid) and eyelashes. Iris pigmentation is likely to be permanent. Latanoprost has also been associated with gradual changes to eyelashes including increased length, thickness and number of lashes. These changes are usually reversible.

Ewf https://www.drugbank.ca/drugs/DB00654

https://www.biospace.com/article/fda-approves-aerie-pharma-s-glaucoma-combo-eye-drops/

FDA Approves Sunosi

 Jazz Pharmaceuticals plc   announced that the U.S. Food and Drug Administration (FDA) approved Sunosi (solriamfetol) to improve wakefulness in adult patients with excessive daytime sleepiness associated with narcolepsy or obstructive sleep apnea (OSA). Once-daily Sunosi is approved with doses of 75 mg and 150 mg for patients with narcolepsy and doses of 37.5 mg, 75 mg, and 150 mg for patients with OSA. Sunosi is the first dual-acting dopamine and norepinephrine reuptake inhibitor (DNRI) approved to treat excessive daytime sleepiness in adults living with narcolepsy or OSA.

Sunosi is expected to be commercially available in the U.S. following the final scheduling decision by the U.S. Drug Enforcement Administration (DEA), which is typically within 90 days of FDA approval.

"Excessive daytime sleepiness can negatively impact the daily lives of people living with narcolepsy or obstructive sleep apnea at work, at home or in daily activities. With this approval, a new, daytime medicine that can provide sustained wakefulness throughout the day will be available for patients," said Bruce Cozadd, chairman and chief executive officer of Jazz Pharmaceuticals. "The FDA approval of Sunosi also represents an important milestone for Jazz as we continue to offer new treatment options that address unmet needs for people living with chronic, and often debilitating, sleep disorders."

At Week 12, 150 mg of Sunosi for narcolepsy patients and all doses for OSA patients demonstrated improvements in wakefulness compared to placebo as assessed in test sessions 1 (approximately one hour post-dose) through 5 (approximately nine hours post-dose) of the maintenance of wakefulness test (MWT).

The FDA's approval of Sunosi is based on data from the Treatment of Obstructive sleep apnea and Narcolepsy Excessive Sleepiness (TONES) Phase 3 clinical program, which included four randomized placebo-controlled studies that demonstrated the superiority of Sunosi relative to placebo. The most common adverse reactions (incidence ≥5% and higher than placebo) reported in both the narcolepsy and OSA study populations were headache, nausea, decreased appetite, and anxiety. Sunosi was evaluated in more than 900 adults with excessive daytime sleepiness associated with narcolepsy or obstructive sleep apnea and was shown to maintain its effect relative to placebo after six months of use.

"We're excited about this new therapeutic option for patients, and we are pleased with the information included in the Sunosi label as we believe it will give physicians the information needed to appropriately manage the vast majority of obstructive sleep apnea and narcolepsy patients with excessive daytime sleepiness," said Daniel Swisher, president and chief operating officer of Jazz Pharmaceuticals.

In 12 week clinical studies, approximately 68-74% of people taking Sunosi at the 75 mg dose and 78-90% of people taking Sunosi at the 150 mg dose reported improvement in their overall clinical condition, as assessed by the Patient Global Impression of Change (PGIc) scale.

Although the exact mechanism of action is unknown, the effects of Sunosi are thought to be mediated through its activity as a DNRI.

"Sunosi is an effective treatment option with a novel mechanism of action as a dual-acting dopamine and norepinephrine reuptake inhibitor," said Richard K. Bogan, MD, FCCP, FAASM, Associate Clinical Professor at the University of South Carolina School of Medicine and Chief Medical Officer at SleepMed in Columbia, SC. "Excessive daytime sleepiness is the most common symptom for people with narcolepsy and a major complaint of people with obstructive sleep apnea. In some people with obstructive sleep apnea, excessive daytime sleepiness may persist despite using CPAP."

Sunosi is not indicated to treat the underlying airway obstruction in OSA. Ensure that the underlying airway obstruction is treated (e.g., with continuous positive airway pressure (CPAP)) for at least one month prior to initiating Sunosi for excessive daytime sleepiness in OSA. Modalities to treat the underlying airway obstruction should be continued during treatment with Sunosi. Sunosi is not a substitute for these modalities.

About Sunosi (solriamfetol)

Sunosi is a dual-acting dopamine and norepinephrine reuptake inhibitor (DNRI) indicated to improve wakefulness in adults living with excessive daytime sleepiness due to narcolepsy or obstructive sleep apnea (OSA). In 2014, Jazz Pharmaceuticals acquired a license to develop and commercialize Sunosi from Aerial Biopharma. Jazz Pharmaceuticals has worldwide development, manufacturing, and commercialization rights to Sunosi, excluding certain jurisdictions in Asia. SK Biopharmaceuticals, the discoverer of the compound, maintains rights in 12 Asian markets, including Korea, China and Japan. Sunosi has orphan drug designation for narcolepsy in the United States. 

Important Safety Information

Sunosi can be a target for people who abuse prescription medicines or street drugs. Keep Sunosi in a safe place to protect it from theft. Never give your Sunosi to anyone else, because it may cause death or harm them. Selling or giving away Sunosi may harm others and is against the law. Tell your doctor if you have ever abused or been dependent on alcohol, prescription medicines or street drugs.

Do not take Sunosi if you are taking or have stopped taking within the past 14 days a medicine used to treat depression called a monoamine oxidase inhibitor (MAOI).

Before taking Sunosi, tell your doctor about all of your medical conditions, including if you:

• have heart problems, high blood pressure, kidney problems, diabetes, or high cholesterol
• have had a heart attack or a stroke
• have kidney problems or diabetes
• have a history of mental health problems, (including psychosis and bipolar disorders), or of drug or alcohol abuse or addiction
• are pregnant or planning to become pregnant. It is not known if Sunosi will harm your unborn baby.
• Pregnancy Registry: There is a pregnancy registry for women who take Sunosi during pregnancy. The purpose of this registry is to collect information about the health of you and your baby. Talk to your doctor about how you can take part in this registry.
• are breastfeeding or plan to breastfeed. It is not known if Sunosi passes into your breast milk. Talk to your doctor about the best way to feed your baby if you take Sunosi.

Especially tell your healthcare provider if you take a medicine used to treat depression called a monoamine oxidase inhibitor (MAOI).

Ref : https://en.wikipedia.org/wiki/Solriamfetol

FDA Approves Sunosi (solriamfetol) for Excessive Daytime Sleepiness Associated with Narcolepsy or Obstructive Sleep Apnea..

 Print this page

Eating blueberries every day could help decrease blood pressure

In continuation of my update on blueberries

A new study published in the Journal of Gerontology Series A has found that eating 200g of blueberries every day for a month can lead to an improvement in blood vessel function and a decrease in systolic blood pressure in healthy people.

Researchers from King's College London studied 40 healthy volunteers for one month. They were randomly given either a drink containing 200g of blueberries, or a matched control drink daily.

The team monitored chemicals in volunteers' blood and urine as well as their blood pressure and flow-mediated dilation (FMD) of the brachial artery: a measure of how the artery widens when blood flow increases, which is considered a sensitive biomarker of cardiovascular disease risk.

In a further study, researchers compared the effects of a blueberry drink with those of purified anthocyanins, a type of phytochemical responsible for the blue, red, pink and purple colour of some fruits and vegetables such as berries and red grapes. They also compared this with control drinks containing either similar levels of fiber, mineral or vitamins found in blueberries.

They found that:

• Effects on blood vessel function were seen two hours after consumption of the blueberry drinks and were sustained for one month even after an overnight fast.
• Over the course of the month, blood pressure was reduced by 5mmHg. This is similar to what is commonly seen in studies using blood pressure lowering medication.
• The drinks containing purified anthocyanins led to improvements in endothelial function. Endothelial cells act as a barrier between the blood or lymph and the surrounding body tissue, as well as playing key roles in blood clotting and regulating blood pressure.
• Neither the control drink, the control with fiber or the control with minerals and vitamins had a significant effect on FMD at two and six hours after consumption.

Lead researcher Dr Ana Rodriguez-Mateos from the Department of Nutritional Sciences at King's College London said: "Although it is best to eat the whole blueberry to get the full benefit, our study finds that the majority of the effects can be explained by anthocyanins.

"If the changes we saw in blood vessel function after eating blueberries every day could be sustained for a person's whole life, it could reduce their risk of developing cardiovascular disease by up to 20%."

https://www.kcl.ac.uk/news/news-article?id=af4e7b3e-2c7d-4d8f-ae9e-fe6d1014d0eb

Eating blueberries every day could help decrease blood pressure

Some drug combinations may be more effective than others for schizophrenic patients

  Patients with schizophrenia are often treated with more than one type of psychiatric medication, but a new study suggests that some combinations may be more effective than others.

The findings were published in JAMA Psychiatry.

Antipsychotic drugs are usually the first line of treatment for individuals with schizophrenia. But because these drugs often fail to control symptoms adequately on their own, doctors often prescribe additional psychiatric medications, such as another antipsychotic, an antidepressant, a benzodiazepine, or a mood stabilizer.

"Antipsychotic medications are used to treat psychotic symptoms such as delusions and hallucinations but there is little guidance on what to do for other types of symptoms like depression, anxiety or excitement. Additional medications are often prescribed, but we know little about how different psychiatric drug combinations affect people with schizophrenia," says T. Scott Stroup, MD, MPH, professor of psychiatry at Columbia University Vagelos College of Physicians and Surgeons and lead author of the paper. "Until now we have known virtually nothing about how these strategies compare to each other."

To find out, the researchers conducted a comparative effectiveness study using Medicaid records of 81,921 adults with schizophrenia who had been taking only an antipsychotic drug for at least 3 months before starting either an antidepressant, benzodiazepine, mood stabilizer, or another antipsychotic drug.

The researchers found that individuals with schizophrenia who added an antidepressant were less likely to land in the emergency room or hospital for a mental health issue than those who started another antipsychotic or a benzodiazepine. Antidepressants reduced the risk of hospitalization by 16% compared to antipsychotics and by 22% compared to benzodiazepines. For emergency room visits, antidepressants reduced the risk by 8% compared to antipsychotics and by 18% compared to benzodiazepines.

"Our study adds more evidence that benzodiazepine use should be limited and that combining antidepressants with antipsychotic drugs for individuals with schizophrenia may have benefits," says Stroup. "We still need to know more about when to use antidepressants, which may be useful for conditions other than depression."

Combining medications is often referred to as polypharmacy. "The results of our study should promote rational polypharmacy," added Stroup. He thinks that clinicians will find the results believable and hopes that they will lead to practice changes and improved patient outcomes.

The study is titled, "Comparative Effectiveness of Adjunctive Psychotropic Medications in Patients with Schizophrenia."

https://www.cuimc.columbia.edu/

Some drug combinations may be more effective than others for schizophrenic patients

Drug increases melanin production in some people with albinism

  

A small pilot clinical study at the National Eye Institute (NEI) suggests that the drug nitisinone increases melanin production in some people with oculocutaneous albinism type 1B (OCA-1B), a rare genetic disease that causes pale skin and hair and poor vision. Increased melanin could help protect people with the condition against the sun's UV rays and promote the development of normal vision. Study results were published in JCI Insight. NEI is part of the National Institutes of Health (NIH).

"Because the greatest vision problems for people with albinism occur during the early development of the eye, our eventual goal is to work with infants," said Brian Brooks, M.D., Ph.D., clinical director at NEI and lead author of the study. "The purpose of this pilot study was to explore whether nitisinone is safe and whether we could pick up a signal that the drug works."

Oculocutaneous albinism (OCA) is a rare inherited disease caused by mutations in genes needed to make melanin, a dark-colored pigment found in hair, skin, and eyes. In the United States, the most common form of OCA is OCA-1, which is caused by mutations in the gene that codes for the enzyme tyrosinase. Tyrosinase function - the breakdown of the amino acid tyrosine into its component parts - is critical for the production of melanin. People with OCA-1B, like those who participated in this study, have some tyrosinase, but it functions poorly. People with OCA-1A have no tyrosinase at all. Approximately one in 17,000 people worldwide have a form of OCA.

The study followed three women and two men over 18 months, including 12 months on a daily oral 2 mg dose of nitisinone, and six additional months without the drug. While on nitisinone, most study participants showed a slight darkening of skin and hair. One participant's skin darkened slightly after sun exposure. However, the researchers were unable to detect clinically significant changes in eye melanin or in visual acuity. With improvements in imaging of the iris, and with younger patients, Brooks and colleagues hope subtle changes in the eye will be more apparent.

Nitisinone increases the concentration of the amino acid tyrosine in the blood. In people with OCA-1B, Brooks believes that the higher levels of tyrosine help stabilize mutated tyrosinase and make the enzyme more effective. Brooks' previous studies have shown that nitisinone has no effect in OCA-1A, where there's no tyrosinase to stabilize, and OCA-3, where a different part of the melanin pathway is affected, so his team doesn't intend to pursue this drug for patients with those forms of albinism. Nitisinone is approved by the U.S. Food and Drug Administration to treat a rare metabolic disease called tyrosinemia, which can cause liver and neurological problems.

"We're evaluating OCA-2 and OCA-4 in mice, and we're hopeful that this drug might have some effect," said Brooks. In the meantime, he hopes to start a new, larger trial of nitisinone for teenagers with OCA-1B.

"Melanin is crucial for normal visual development during infancy, but the eye continues to develop and change throughout childhood and into the teenage years," Brooks said. For this reason, Brooks thinks nitisinone might improve iris pigmentation and visual acuity in teens and could have a bigger effect in younger children with OCA-1B.

On February 28, NIH will recognize Rare Disease Day, established in 2008 to raise awareness about rare diseases and the unique challenges faced by patients and their families. In the United States, a disease is considered rare if it affects less than 200,000, or approximately one in 1700, people. About 80 percent of rare diseases are caused by inherited gene defects, and many of these, like OCA, lack effective treatments. NEI is committed to supporting basic and clinical research into rare diseases that affect vision

Ref : https://nei.nih.gov/content/nitisinone-increases-melanin-people-albinism

https://en.wikipedia.org/wiki/Nitisinone

Drug increases melanin production in some people with albinism

Allergan Announces FDA Approval of Avycaz (ceftazidime and avibactam) for Pediatric Patients

Allergan plc (NYSE: AGN) announced that the U.S. Food and Drug Administration (FDA) has approved the company's supplemental New Drug Application (sNDA) for Avycaz (ceftazidime and avibactam), expanding the label to include pediatric patients 3 months and older for the treatment of complicated intra-abdominal infections (cIAI) in combination with metronidazole and complicated urinary tract infections (cUTI). This is the first FDA approval of a pediatric indication for cUTI and cIAI in more than a decade.

      

"Difficult-to-treat gram-negative pathogens pose a significant health risk, particularly to the vulnerable and sensitive pediatric patient population with few options for treatment," said David Nicholson, Chief Research & Development Officer at Allergan.  "As resistance rises among the gram-negative pathogens that cause these serious infections, the expanded label for Avycaz provides a safe and effective treatment option now for pediatric patients with cIAI and cUTI. These expanded indications in pediatric patients with infections, including infants and those at a particularly young age, address an unmet need among this vulnerable population and  underscore Allergan's efforts in anti-infective research."

The label expansion was approved based on results from two active-controlled clinical studies evaluating Avycaz in children or infants with cIAI or cUTI, as well as a single-dose pharmacokinetic study. In the cIAI study, the safety and efficacy of Avycaz (in combination with metronidazole) was compared with meropenem. In the cUTI study, Avycaz was compared with cefepime.

Across the trials, 128 pediatric patients 3 months to less than 18 years of age were treated with Avycaz. Overall, the findings from the pediatric studies were similar to the previous determination of safety for Avycaz for the treatment of adult patients with cIAI or cUTI, and no new safety concerns were identified in pediatric patients.

The primary objectives of the studies were to evaluate the safety and tolerability of Avycaz, and they were not powered for a statistical analysis of efficacy. The descriptive efficacy analyses in the pediatric studies were consistent with data from studies in adults with cIAI and cUTI. In the pediatric cIAI study, the clinical cure rate at the test-of-cure (TOC) visit in the intent-to-treat (ITT) population was 91.8% (56/61) in the Avycaz plus metronidazole group and 95.5% (21/22) in the meropenem group. Clinical cure rates for the predominant pathogens, Escherichia coli and Pseudomonas aeruginosa, were 90.5% and 85.7%, respectively for patients treated with Avycaz plus metronidazole, and 92.3% and 88.9%, respectively, for patients treated with meropenem. In the pediatric cUTI study, the combined favorable clinical and microbiological response rate at TOC in the microbiological-ITT population was 72.2% (39/54) in the Avycaz group and 60.9% (14/23) in the cefepime group. The microbiologic response rate for E.coli, the most common uropathogen identified in the study, was 79.6% for patients treated with Avycaz and 59.1% for patients treated with cefepime.

Avycaz was first approved by the FDA in February 2015 for the treatment of cUTI including pyelonephritis, and cIAI in combination with metronidazole, caused by designated susceptible bacteria including certain Enterobacteriaceae and P. aeruginosa, for patients 18 years of age and older. Avycaz was subsequently approved for the treatment of adults with hospital-acquired pneumonia / ventilator-associated pneumonia (HABP/VABP) caused by designated susceptible bacteria in February 2018.

About Avycaz (ceftazidime and avibactam)

Avycaz is a fixed-dose combination antibacterial indicated for the treatment of cIAI (in combination with metronidazole), and cUTI caused by designated susceptible Gram-negative microorganisms in patients 3 months or older. Avycaz is also indicated for the treatment  of hospital-acquired bacterial pneumonia and ventilator-associated bacterial pneumonia (HABP/VABP) in adults. Avycaz consists of a combination of avibactam and ceftazidime.

Avibactam is a first-in-class non-beta-lactam beta-lactamase inhibitor which protects ceftazidime against degradation by certain beta-lactamases. Avibactam does not decrease the activity of ceftazidime against ceftazidime-susceptible organisms. Ceftazadime is a third-generation cephalosporin with a well-established efficacy and safety profile.

Avycaz has demonstrated in vitro activity against Enterobacteriaceae in the presence of some beta-lactamases and extended-spectrum beta-lactamases (ESBLs) of the following groups: TEM, SHV, CTX-M, Klebsiella pneumoniae carbapenemase (KPCs), AmpC and certain oxacillinases (OXA). Avycaz also demonstrated in vitro activity against P. aeruginosa in the presence of some AmpC beta-lactamases, and certain strains lacking outer membrane porin (OprD). Avycaz is not active against bacteria that produce metallo-beta lactamases and may not have activity against Gram-negative bacteria that overexpress efflux pumps or have porin mutations.

Ceftazidime and avibactam is being jointly developed with Pfizer. Allergan holds the rights to commercialize ceftazidime and avibactam in North America under the brand name Avycaz, while Pfizer holds the rights to commercialize the combination in the rest of the world under the brand 

Ref : https://www.drugbank.ca/drugs/DB00438

https://en.wikipedia.org/wiki/Ceftazidime

https://en.wikipedia.org/wiki/Avibactam

https://pubchem.ncbi.nlm.nih.gov/compound/Avibactam#section=2D-Structure

Harmony Biosciences Announces File Acceptance Of Its New Drug Application For Pitolisant

   Harmony Biosciences, LLC (Harmony), announced that the U.S. Food and Drug Administration (FDA) has accepted for filing the New Drug Application (NDA) for its investigational product, pitolisant, and has granted Priority Review for this NDA. Pitolisant is a first-in-class molecule with a novel mechanism of action; it is a potent and highly selective histamine 3 (H₃) receptor antagonist/inverse agonist for the potential treatment of excessive daytime sleepiness (EDS) and/or cataplexy in adult patients with narcolepsy. A Priority Review designation by the FDA indicates that, if approved, pitolisant would provide a significant improvement in the safety or effectiveness of the treatment of EDS and/or cataplexy in adult patients with narcolepsy when compared to existing treatments. Harmony’s goal is to obtain FDA approval to market pitolisant in the U.S. in 2019.

“The impact of narcolepsy can be significant and severely disruptive to everyday life for up to 200,000 Americans living with this disorder,” said John C. Jacobs, President and CEO at Harmony. “This is an important step for patients and for our company, whose mission is to develop novel treatment options for people living with rare and orphan diseases.”

“Pitolisant offers a novel approach to the treatment of both EDS and cataplexy in patients with narcolepsy, for which there have been no new treatment options in over 15 years,” said Jeffrey M. Dayno, M.D., Chief Medical Officer at Harmony. “We look forward to working with the FDA during its review of the pitolisant NDA, with our hope of being able to offer this new treatment option to help address an important unmet medical need for people living with narcolepsy.”

The NDA submission is based on results from the clinical development program in narcolepsy, which included over 300 patients, some of whom were treated for up to five years. It also included safety data in over 1500 patients across multiple patient populations.

About Pitolisant

Pitolisant is an investigational medication in the U.S. that is not approved by the FDA. It was granted orphan designation for the treatment of narcolepsy, Fast Track designation for the treatment of excessive daytime sleepiness (EDS) and cataplexy in patients with narcolepsy, and Breakthrough Therapy designation for the treatment of cataplexy in patients with narcolepsy. Pitolisant, a first-in-class medication, is a potent and highly selective histamine 3 (H₃) receptor antagonist/inverse agonist; it enhances the activity of histaminergic neurons in the brain that function to improve a patient’s wakefulness and inhibit attacks of cataplexy. It was designed and developed by Bioprojet, who has marketed the product in Europe since its approval by the European Medicines Agency in 2016. Harmony’s goal is to obtain FDA approval to market this new medication in the U.S. in 2019. If approved, pitolisant would represent the first new therapy in the U.S. in over 15 years for the treatment of both EDS and cataplexy in adult patients with narcolepsy.