Rare Diseases

WASHINGTON, DC—Stiff person syndrome leads to disability if therapy is not initiated early in the disease course, according to a prospective study presented at the 2018 Annual Meeting of the American Association of Neuromuscular & Electrodiagnostic Medicine (AANEM). In addition, patients with stiff person syndrome may have “faster progression of disablement than originally reported and believed,” said lead study author Goran Rakocevic, MD. Dr. Rakocevic is Associate Professor of Neurology, Director of the Neuromuscular Electrodiagnostic Laboratory, Clinical Director of the Jefferson Weinberg ALS Center, and Director of the Neuromuscular Medicine Fellowship Program at Thomas Jefferson University in Philadelphia.

Stiff person syndrome is a disorder characterized by muscle rigidity and episodic spasms in axial and limb musculature, as well as heightened sensitivity to external stimuli. To describe the natural history of stiff person syndrome, the extent of accumulated disability, and associated clinical features, Dr. Rakocevic and his research colleagues conducted a prospective cohort study in patients followed for up to eight years in a single center.

The cohort included 57 patients with mean age at disease onset of 42 (range, 22 to 60). Of these, 32 patients were examined every six months for two years without receiving immune therapies. The investigators assessed disease progression using quantitative scales of stiffness and heightened sensitivity.

Patients’ most frequent initial symptoms were leg stiffness, paraspinal muscle rigidity, and painful spasms. Although no patients required assistance for ambulation during the first two years of the disease, 46 patients (80%) lost the ability to walk independently during follow-up, despite symptomatic medications. In the longitudinal cohort, the number of stiff areas increased, which was consistent with worsening functional status and quality of life. The researchers confirmed a strong association between stiff person syndrome and the HLA-DR and DQ haplotypes.

The study is the largest prospective study of patients with stiff person syndrome and the first to provide longitudinal data on the natural course of the disorder in a large patient subgroup using objective clinical measures, Dr. Rakocevic and colleagues said. “The study shows that stiff person syndrome is a progressive autoimmune disease that leads to disability if ... immunotherapy is not applied,” said the investigators.

“Early diagnosis and management of stiff person syndrome can be challenging,” said A. Gordon Smith, MD, Cochair of the AANEM Annual Meeting Program Committee. The study by Dr. Rakocevic’s team demonstrates “that stiff person syndrome causes progressive stiffness and functional decline, with 80% [of patients] becoming unable to walk independently,” he said. “Their research emphasizes the need to treat early and will help clinicians recognize stiff person syndrome earlier in its course.”

The study adds to neurologists’ understanding of the rare disorder, and its strengths include the length of follow-up and the number of patients, said Robert W. Irwin, MD, Cochair of the AANEM Annual Meeting Program Committee.

WASHINGTON, DC—Stiff person syndrome leads to disability if therapy is not initiated early in the disease course, according to a prospective study presented at the 2018 Annual Meeting of the American Association of Neuromuscular & Electrodiagnostic Medicine (AANEM). In addition, patients with stiff person syndrome may have “faster progression of disablement than originally reported and believed,” said lead study author Goran Rakocevic, MD. Dr. Rakocevic is Associate Professor of Neurology, Director of the Neuromuscular Electrodiagnostic Laboratory, Clinical Director of the Jefferson Weinberg ALS Center, and Director of the Neuromuscular Medicine Fellowship Program at Thomas Jefferson University in Philadelphia.

Stiff person syndrome is a disorder characterized by muscle rigidity and episodic spasms in axial and limb musculature, as well as heightened sensitivity to external stimuli. To describe the natural history of stiff person syndrome, the extent of accumulated disability, and associated clinical features, Dr. Rakocevic and his research colleagues conducted a prospective cohort study in patients followed for up to eight years in a single center.

The cohort included 57 patients with mean age at disease onset of 42 (range, 22 to 60). Of these, 32 patients were examined every six months for two years without receiving immune therapies. The investigators assessed disease progression using quantitative scales of stiffness and heightened sensitivity.

Patients’ most frequent initial symptoms were leg stiffness, paraspinal muscle rigidity, and painful spasms. Although no patients required assistance for ambulation during the first two years of the disease, 46 patients (80%) lost the ability to walk independently during follow-up, despite symptomatic medications. In the longitudinal cohort, the number of stiff areas increased, which was consistent with worsening functional status and quality of life. The researchers confirmed a strong association between stiff person syndrome and the HLA-DR and DQ haplotypes.

The study is the largest prospective study of patients with stiff person syndrome and the first to provide longitudinal data on the natural course of the disorder in a large patient subgroup using objective clinical measures, Dr. Rakocevic and colleagues said. “The study shows that stiff person syndrome is a progressive autoimmune disease that leads to disability if ... immunotherapy is not applied,” said the investigators.

“Early diagnosis and management of stiff person syndrome can be challenging,” said A. Gordon Smith, MD, Cochair of the AANEM Annual Meeting Program Committee. The study by Dr. Rakocevic’s team demonstrates “that stiff person syndrome causes progressive stiffness and functional decline, with 80% [of patients] becoming unable to walk independently,” he said. “Their research emphasizes the need to treat early and will help clinicians recognize stiff person syndrome earlier in its course.”

The study adds to neurologists’ understanding of the rare disorder, and its strengths include the length of follow-up and the number of patients, said Robert W. Irwin, MD, Cochair of the AANEM Annual Meeting Program Committee.

WASHINGTON, DC—Stiff person syndrome leads to disability if therapy is not initiated early in the disease course, according to a prospective study presented at the 2018 Annual Meeting of the American Association of Neuromuscular & Electrodiagnostic Medicine (AANEM). In addition, patients with stiff person syndrome may have “faster progression of disablement than originally reported and believed,” said lead study author Goran Rakocevic, MD. Dr. Rakocevic is Associate Professor of Neurology, Director of the Neuromuscular Electrodiagnostic Laboratory, Clinical Director of the Jefferson Weinberg ALS Center, and Director of the Neuromuscular Medicine Fellowship Program at Thomas Jefferson University in Philadelphia.

Stiff person syndrome is a disorder characterized by muscle rigidity and episodic spasms in axial and limb musculature, as well as heightened sensitivity to external stimuli. To describe the natural history of stiff person syndrome, the extent of accumulated disability, and associated clinical features, Dr. Rakocevic and his research colleagues conducted a prospective cohort study in patients followed for up to eight years in a single center.

The cohort included 57 patients with mean age at disease onset of 42 (range, 22 to 60). Of these, 32 patients were examined every six months for two years without receiving immune therapies. The investigators assessed disease progression using quantitative scales of stiffness and heightened sensitivity.

Patients’ most frequent initial symptoms were leg stiffness, paraspinal muscle rigidity, and painful spasms. Although no patients required assistance for ambulation during the first two years of the disease, 46 patients (80%) lost the ability to walk independently during follow-up, despite symptomatic medications. In the longitudinal cohort, the number of stiff areas increased, which was consistent with worsening functional status and quality of life. The researchers confirmed a strong association between stiff person syndrome and the HLA-DR and DQ haplotypes.

The study is the largest prospective study of patients with stiff person syndrome and the first to provide longitudinal data on the natural course of the disorder in a large patient subgroup using objective clinical measures, Dr. Rakocevic and colleagues said. “The study shows that stiff person syndrome is a progressive autoimmune disease that leads to disability if ... immunotherapy is not applied,” said the investigators.

“Early diagnosis and management of stiff person syndrome can be challenging,” said A. Gordon Smith, MD, Cochair of the AANEM Annual Meeting Program Committee. The study by Dr. Rakocevic’s team demonstrates “that stiff person syndrome causes progressive stiffness and functional decline, with 80% [of patients] becoming unable to walk independently,” he said. “Their research emphasizes the need to treat early and will help clinicians recognize stiff person syndrome earlier in its course.”

The study adds to neurologists’ understanding of the rare disorder, and its strengths include the length of follow-up and the number of patients, said Robert W. Irwin, MD, Cochair of the AANEM Annual Meeting Program Committee.

Symptoms of gastrointestinal involvement such as abdominal pain and vomiting may delay diagnosis of Kawasaki disease in pediatric patients.

NaiyanaDonraman/Thinkstock

“The clinical onset of Kawasaki disease with gastrointestinal involvement often leads to diagnostic and therapeutic delays – a risk factor for the development of coronary complications,” Claudia Colomba, MD, from the department of sciences for health promotion and mother and child care at the University of Palermo (Italy), and her colleagues wrote in the Journal of Pediatrics.

After caring for a boy aged 14 years at their center who presented with these symptoms, Dr. Colomba and her colleagues performed a search of the PubMed and Scopus databases and identified 33 articles with 48 total cases of Kawasaki disease with intestinal involvement between 1979 and 2017.

There were 40 cases of fever (82%), 34 cases of abdominal pain (69%), and 24 cases of vomiting (49%) at disease onset, with diarrhea occurring in 14 cases (29%) and jaundice in 1 case (2%), the researchers noted. Cardiac involvement occurred in 21 cases (43%). With regard to imaging, 38 cases of pseudo-obstruction (77%) were identified by plain radiograph, ultrasonography, and CT. Over half of the cases required surgery; of these 25 cases (51%), 8 cases involved a resection of the restricted loop and included a temporary colostomy (16%), 5 cases were exploratory laparotomy (10%), and there was 1 case with enterolysis (2%).

A total of 45 patients received medical treatment, with 12 patients (25%) receiving intravenous immunoglobulin and 18 (37%) receiving intravenous immunoglobulin plus aspirin. One patient had cyanosis and hand and foot gangrene. There were three patients who died, with massive liver necrosis identified during the autopsy of one patient. Of the other two who died, one did so 2 days after exploratory laparotomy and the other died because of Pseudomonas septic shock.

The researchers reported a good outcome in 28 patients (57%), which included 3 cases where there was no treatment.

“The diagnosis of Kawasaki disease should be considered in all children with fever, abdominal pain, and radiologic signs of pseudo-obstruction, even in the absence of typical symptoms and signs,” Dr. Colomba and her colleagues wrote. “A more comprehensive analysis including all clinical forms of Kawasaki disease would be useful to correlate intestinal involvement with worse outcomes for cardiac complications, as well as to clues to more rapid diagnosis and avoidance of unnecessary invasive procedures.”

The authors reported no relevant conflicts of interest.

SOURCE: Colomba C et al. J Pediatr. 2018 Jul 17. doi: 10.1016/j.jpeds.2018.06.034.

Symptoms of gastrointestinal involvement such as abdominal pain and vomiting may delay diagnosis of Kawasaki disease in pediatric patients.

NaiyanaDonraman/Thinkstock

“The clinical onset of Kawasaki disease with gastrointestinal involvement often leads to diagnostic and therapeutic delays – a risk factor for the development of coronary complications,” Claudia Colomba, MD, from the department of sciences for health promotion and mother and child care at the University of Palermo (Italy), and her colleagues wrote in the Journal of Pediatrics.

After caring for a boy aged 14 years at their center who presented with these symptoms, Dr. Colomba and her colleagues performed a search of the PubMed and Scopus databases and identified 33 articles with 48 total cases of Kawasaki disease with intestinal involvement between 1979 and 2017.

There were 40 cases of fever (82%), 34 cases of abdominal pain (69%), and 24 cases of vomiting (49%) at disease onset, with diarrhea occurring in 14 cases (29%) and jaundice in 1 case (2%), the researchers noted. Cardiac involvement occurred in 21 cases (43%). With regard to imaging, 38 cases of pseudo-obstruction (77%) were identified by plain radiograph, ultrasonography, and CT. Over half of the cases required surgery; of these 25 cases (51%), 8 cases involved a resection of the restricted loop and included a temporary colostomy (16%), 5 cases were exploratory laparotomy (10%), and there was 1 case with enterolysis (2%).

A total of 45 patients received medical treatment, with 12 patients (25%) receiving intravenous immunoglobulin and 18 (37%) receiving intravenous immunoglobulin plus aspirin. One patient had cyanosis and hand and foot gangrene. There were three patients who died, with massive liver necrosis identified during the autopsy of one patient. Of the other two who died, one did so 2 days after exploratory laparotomy and the other died because of Pseudomonas septic shock.

The researchers reported a good outcome in 28 patients (57%), which included 3 cases where there was no treatment.

“The diagnosis of Kawasaki disease should be considered in all children with fever, abdominal pain, and radiologic signs of pseudo-obstruction, even in the absence of typical symptoms and signs,” Dr. Colomba and her colleagues wrote. “A more comprehensive analysis including all clinical forms of Kawasaki disease would be useful to correlate intestinal involvement with worse outcomes for cardiac complications, as well as to clues to more rapid diagnosis and avoidance of unnecessary invasive procedures.”

The authors reported no relevant conflicts of interest.

SOURCE: Colomba C et al. J Pediatr. 2018 Jul 17. doi: 10.1016/j.jpeds.2018.06.034.

Symptoms of gastrointestinal involvement such as abdominal pain and vomiting may delay diagnosis of Kawasaki disease in pediatric patients.

NaiyanaDonraman/Thinkstock

“The clinical onset of Kawasaki disease with gastrointestinal involvement often leads to diagnostic and therapeutic delays – a risk factor for the development of coronary complications,” Claudia Colomba, MD, from the department of sciences for health promotion and mother and child care at the University of Palermo (Italy), and her colleagues wrote in the Journal of Pediatrics.

After caring for a boy aged 14 years at their center who presented with these symptoms, Dr. Colomba and her colleagues performed a search of the PubMed and Scopus databases and identified 33 articles with 48 total cases of Kawasaki disease with intestinal involvement between 1979 and 2017.

There were 40 cases of fever (82%), 34 cases of abdominal pain (69%), and 24 cases of vomiting (49%) at disease onset, with diarrhea occurring in 14 cases (29%) and jaundice in 1 case (2%), the researchers noted. Cardiac involvement occurred in 21 cases (43%). With regard to imaging, 38 cases of pseudo-obstruction (77%) were identified by plain radiograph, ultrasonography, and CT. Over half of the cases required surgery; of these 25 cases (51%), 8 cases involved a resection of the restricted loop and included a temporary colostomy (16%), 5 cases were exploratory laparotomy (10%), and there was 1 case with enterolysis (2%).

A total of 45 patients received medical treatment, with 12 patients (25%) receiving intravenous immunoglobulin and 18 (37%) receiving intravenous immunoglobulin plus aspirin. One patient had cyanosis and hand and foot gangrene. There were three patients who died, with massive liver necrosis identified during the autopsy of one patient. Of the other two who died, one did so 2 days after exploratory laparotomy and the other died because of Pseudomonas septic shock.

The researchers reported a good outcome in 28 patients (57%), which included 3 cases where there was no treatment.

“The diagnosis of Kawasaki disease should be considered in all children with fever, abdominal pain, and radiologic signs of pseudo-obstruction, even in the absence of typical symptoms and signs,” Dr. Colomba and her colleagues wrote. “A more comprehensive analysis including all clinical forms of Kawasaki disease would be useful to correlate intestinal involvement with worse outcomes for cardiac complications, as well as to clues to more rapid diagnosis and avoidance of unnecessary invasive procedures.”

The authors reported no relevant conflicts of interest.

SOURCE: Colomba C et al. J Pediatr. 2018 Jul 17. doi: 10.1016/j.jpeds.2018.06.034.

The Food and Drug Administration has cleared Xyrem (sodium oxybate) oral solution to treat cataplexy and excessive daytime sleepiness in patients ages 7-17 with narcolepsy.

The central nervous system depressant previously had been approved to treat cataplexy in adults with narcolepsy.

The current approval was granted by the FDA under a Priority Review designation. Xyrem also received the FDA’s Orphan Drug designation, which is intended to encourage the development of drugs for rare diseases.

The agency noted in a press release, however, that the drug would continue to be available only through risk evaluation mitigation strategy (REMS) programs because of “the risk of serious outcomes resulting from inappropriate prescribing, misuse, abuse and diversion.” Xyrem either alone or in combination with other CNS depressants may be associated with reactions including seizure, respiratory depression, decreases in the level of consciousness, coma, and death, the FDA said.

The most common adverse reactions in pediatric patients were enuresis, nausea, headache, vomiting, weight decrease, decreased appetite, and dizziness.

For more information on prescribing Xyrem for pediatric patients, see the revised labeling information on the FDA website.

[email protected]

The Food and Drug Administration has cleared Xyrem (sodium oxybate) oral solution to treat cataplexy and excessive daytime sleepiness in patients ages 7-17 with narcolepsy.

The central nervous system depressant previously had been approved to treat cataplexy in adults with narcolepsy.

The current approval was granted by the FDA under a Priority Review designation. Xyrem also received the FDA’s Orphan Drug designation, which is intended to encourage the development of drugs for rare diseases.

The agency noted in a press release, however, that the drug would continue to be available only through risk evaluation mitigation strategy (REMS) programs because of “the risk of serious outcomes resulting from inappropriate prescribing, misuse, abuse and diversion.” Xyrem either alone or in combination with other CNS depressants may be associated with reactions including seizure, respiratory depression, decreases in the level of consciousness, coma, and death, the FDA said.

The most common adverse reactions in pediatric patients were enuresis, nausea, headache, vomiting, weight decrease, decreased appetite, and dizziness.

For more information on prescribing Xyrem for pediatric patients, see the revised labeling information on the FDA website.

[email protected]

The Food and Drug Administration has cleared Xyrem (sodium oxybate) oral solution to treat cataplexy and excessive daytime sleepiness in patients ages 7-17 with narcolepsy.

The central nervous system depressant previously had been approved to treat cataplexy in adults with narcolepsy.

The current approval was granted by the FDA under a Priority Review designation. Xyrem also received the FDA’s Orphan Drug designation, which is intended to encourage the development of drugs for rare diseases.

The agency noted in a press release, however, that the drug would continue to be available only through risk evaluation mitigation strategy (REMS) programs because of “the risk of serious outcomes resulting from inappropriate prescribing, misuse, abuse and diversion.” Xyrem either alone or in combination with other CNS depressants may be associated with reactions including seizure, respiratory depression, decreases in the level of consciousness, coma, and death, the FDA said.

The most common adverse reactions in pediatric patients were enuresis, nausea, headache, vomiting, weight decrease, decreased appetite, and dizziness.

For more information on prescribing Xyrem for pediatric patients, see the revised labeling information on the FDA website.

[email protected]

WASHINGTON – Genetic developments may create a new medical model for patients with rare diseases and the doctors who treat them, according to Marshall Summar, MD, chief of genetics and metabolism at Children’s National Medical Center in Washington, D.C.

In an interview at the NORD Rare Summit, held by the National Organization for Rare Disorders, Dr. Summar and Peter L. Saltonstall, president and CEO of NORD, discussed hot topics in the rare disease field. Those include new knowledge of the natural history of rare diseases, made possible by the creation of patient databases and the expansion of genetic technology. In addition, some DNA therapies “are finally crossing the finish line,” said Dr. Summar. That means clinicians will be looking at some rare diseases as acute conditions rather than chronic.

However, patients with rare diseases continue to face challenges in terms of the need for prior authorization and for drug access. One of NORD’s missions is to help patients access treatment. “We are seeing these prior authorizations take weeks or even longer,” Mr. Saltonstall said – and meanwhile, patients aren’t receiving therapy.

Visit rarediseases.org for more information about NORD’s ongoing research and advocacy efforts.

Dr. Summar and Mr. Saltonstall had no financial conflicts to disclose.

WASHINGTON – Genetic developments may create a new medical model for patients with rare diseases and the doctors who treat them, according to Marshall Summar, MD, chief of genetics and metabolism at Children’s National Medical Center in Washington, D.C.

In an interview at the NORD Rare Summit, held by the National Organization for Rare Disorders, Dr. Summar and Peter L. Saltonstall, president and CEO of NORD, discussed hot topics in the rare disease field. Those include new knowledge of the natural history of rare diseases, made possible by the creation of patient databases and the expansion of genetic technology. In addition, some DNA therapies “are finally crossing the finish line,” said Dr. Summar. That means clinicians will be looking at some rare diseases as acute conditions rather than chronic.

However, patients with rare diseases continue to face challenges in terms of the need for prior authorization and for drug access. One of NORD’s missions is to help patients access treatment. “We are seeing these prior authorizations take weeks or even longer,” Mr. Saltonstall said – and meanwhile, patients aren’t receiving therapy.

Visit rarediseases.org for more information about NORD’s ongoing research and advocacy efforts.

Dr. Summar and Mr. Saltonstall had no financial conflicts to disclose.

WASHINGTON – Genetic developments may create a new medical model for patients with rare diseases and the doctors who treat them, according to Marshall Summar, MD, chief of genetics and metabolism at Children’s National Medical Center in Washington, D.C.

In an interview at the NORD Rare Summit, held by the National Organization for Rare Disorders, Dr. Summar and Peter L. Saltonstall, president and CEO of NORD, discussed hot topics in the rare disease field. Those include new knowledge of the natural history of rare diseases, made possible by the creation of patient databases and the expansion of genetic technology. In addition, some DNA therapies “are finally crossing the finish line,” said Dr. Summar. That means clinicians will be looking at some rare diseases as acute conditions rather than chronic.

However, patients with rare diseases continue to face challenges in terms of the need for prior authorization and for drug access. One of NORD’s missions is to help patients access treatment. “We are seeing these prior authorizations take weeks or even longer,” Mr. Saltonstall said – and meanwhile, patients aren’t receiving therapy.

Visit rarediseases.org for more information about NORD’s ongoing research and advocacy efforts.

Dr. Summar and Mr. Saltonstall had no financial conflicts to disclose.

WASHINGTON – Physicians in primary and specialty care can provide guidance and support to patients with rare diseases by educating themselves about the resources available, according to Tim Boyd, director of state policy for the National Organization for Rare Disorders (NORD).

In an interview at the NORD Rare Summit, held by the National Organization for Rare Disorders, Mr. Boyd and Melinda Burnworth, PharmD, a pharmacist and NORD state volunteer from Arizona, discussed challenges faced by patients with rare diseases, including securing a correct diagnosis, accessing medication, and managing treatment going forward.

Physicians who understand some of the barriers to medication access can help advocate for their patients, explained Mr. Boyd, and those who know about resources for rare disorders can help make a diagnosis.

“All health care providers have an opportunity to enhance care for patients with rare disorders,” said Dr. Burnworth, author of the Rare Disease eResource Guide, available through the American Society of Health-System Pharmacists. Visit rarediseases.org for more information about NORD’s ongoing research and advocacy efforts.

Mr. Boyd and Dr. Burnworth had no financial conflicts to disclose.

WASHINGTON – Physicians in primary and specialty care can provide guidance and support to patients with rare diseases by educating themselves about the resources available, according to Tim Boyd, director of state policy for the National Organization for Rare Disorders (NORD).

In an interview at the NORD Rare Summit, held by the National Organization for Rare Disorders, Mr. Boyd and Melinda Burnworth, PharmD, a pharmacist and NORD state volunteer from Arizona, discussed challenges faced by patients with rare diseases, including securing a correct diagnosis, accessing medication, and managing treatment going forward.

Physicians who understand some of the barriers to medication access can help advocate for their patients, explained Mr. Boyd, and those who know about resources for rare disorders can help make a diagnosis.

“All health care providers have an opportunity to enhance care for patients with rare disorders,” said Dr. Burnworth, author of the Rare Disease eResource Guide, available through the American Society of Health-System Pharmacists. Visit rarediseases.org for more information about NORD’s ongoing research and advocacy efforts.

Mr. Boyd and Dr. Burnworth had no financial conflicts to disclose.

WASHINGTON – Physicians in primary and specialty care can provide guidance and support to patients with rare diseases by educating themselves about the resources available, according to Tim Boyd, director of state policy for the National Organization for Rare Disorders (NORD).

In an interview at the NORD Rare Summit, held by the National Organization for Rare Disorders, Mr. Boyd and Melinda Burnworth, PharmD, a pharmacist and NORD state volunteer from Arizona, discussed challenges faced by patients with rare diseases, including securing a correct diagnosis, accessing medication, and managing treatment going forward.

Physicians who understand some of the barriers to medication access can help advocate for their patients, explained Mr. Boyd, and those who know about resources for rare disorders can help make a diagnosis.

“All health care providers have an opportunity to enhance care for patients with rare disorders,” said Dr. Burnworth, author of the Rare Disease eResource Guide, available through the American Society of Health-System Pharmacists. Visit rarediseases.org for more information about NORD’s ongoing research and advocacy efforts.

Mr. Boyd and Dr. Burnworth had no financial conflicts to disclose.

PARIS – The investigational oral neurokinin-1 receptor antagonist serlopitant significantly reduced multiple distressing sensory symptoms of prurigo nodularis in a 127-patient, randomized, placebo-controlled trial, Sonja Stander, MD, said at the annual congress of the European Academy of Dermatology and Venereology.

She used her speaker’s platform not only to present key outcomes of the phase 2 study, but also to explain some of the underappreciated aspects of prurigo nodularis and how the results shed new light on the pathogenesis of the disease.

“There is a knowledge gap regarding this disease,” observed Dr. Stander, professor of dermatology at the University of Munster (Germany).

Prurigo nodularis is a chronic skin condition characterized by numerous intensely pruritic, symmetrically distributed, erosive nodular lesions. As Dr. Stander and her fellow members of the EADV Task Force Pruritus recently reported, prurigo nodularis should be considered as one of the clinical manifestations of chronic prurigo, hallmarks of which include neuronal sensitization to itch and development of an itch-scratch cycle (J Eur Acad Dermatol Venereol. 2018 Jul;32[7]:1059-65). At present, there is no approved treatment for prurigo nodularis in the United States or Europe.

Despite its name, prurigo nodularis is not just about the itch. Additional symptoms were frequently reported by participants in the serlopitant study. Indeed, while 97% of participants reported experiencing devilish pruritus, 52% reported a burning sensation on involved skin, 41% said the lesions were painful, and 36% indicated they were plagued by a stinging sensation. All of these disturbing sensations were significantly reduced with 8 weeks of serlopitant in the trial.

Courtesy Dr. Adam Friedman, Washington, D.C.

The clinical implications of these baseline findings are clear: “We have to ask not only about itch, but also about pain and burning and stinging, which are really an issue with these patients,” the dermatologist said.

Dr. Stander noted that prurigo nodularis has a large negative impact on quality of life as reflected in study participants’ mean baseline Dermatology Life Quality Index score of 61. And it’s a disease that sticks around: At enrollment, 38% of subjects had a 1- to 5-year history of prurigo nodularis, 20% had had the disease for 5-10 years, and fully 29% had had prurigo nodularis for longer than 10 years.

“This is not a chronic relapsing disease. These patients had prurigo nodularis all the time,” Dr. Stander said.

Consistent with the findings of other studies, half of patients with prurigo nodularis had an atopic predisposition as defined by an Erlangen Atopy Questionnaire score of 10 or higher.


Patients in the phase 2 study were randomized to either a 15-mg loading dose of oral serlopitant followed by 5 mg/day for 8 weeks or to placebo. All four of the most common manifestations of prurigo nodularis – itching, burning, pain, and stinging – were reduced to a significantly greater extent in the serlopitant group than with placebo. For example, the proportion of serlopitant-treated patients who rated their itching as none or mild went from zero at baseline to 54% at week 8, as compared with 26% among placebo-treated controls. After 8 weeks, 46% of serlopitant-treated patients rated their itching as moderate, severe, or very severe, as did 71% of controls.

Similarly, the proportion of patients in the serlopitant group who reported no or only a mild burning sensation climbed from 41% at baseline to 73% after 8 weeks. In the control group, the proportion improved from 36% to 47% over the course of 8 weeks. At week 8, 27% of patients on serlopitant characterized themselves as experiencing a moderate, severe, or very severe burning sensation; the rate was twice as high in controls.

Although the stinging sensation associated with prurigo nodularis was significantly reduced by serlopitant, the effect was less robust than with the other common sensory expressions of the disease. The proportion of patients with no or mild stinging increased by an absolute 23% after 8 weeks on serlopitant and by 6% with placebo. At week 8, 22% of patients treated with the neurokinin-1 receptor antagonist complained of a moderate to very severe stinging sensation, as did 40% of controls.

As a neurokinin-1 receptor antagonist, serlopitant inhibits substance P. The drug’s efficacy suggests that substance P plays a role in inducing the itch and other sensory symptoms of prurigo nodularis, according to Dr. Stander.

Based upon the favorable phase 2 results, multiple phase 3 clinical trials of serlopitant for prurigo nodularis are underway in the United States and elsewhere, including a year-long safety study.

Serlopitant is being developed by Menlo Therapeutics. Dr. Stander reported receiving research funding from and serving as a consultant to the company.

[email protected]

PARIS – The investigational oral neurokinin-1 receptor antagonist serlopitant significantly reduced multiple distressing sensory symptoms of prurigo nodularis in a 127-patient, randomized, placebo-controlled trial, Sonja Stander, MD, said at the annual congress of the European Academy of Dermatology and Venereology.

She used her speaker’s platform not only to present key outcomes of the phase 2 study, but also to explain some of the underappreciated aspects of prurigo nodularis and how the results shed new light on the pathogenesis of the disease.

“There is a knowledge gap regarding this disease,” observed Dr. Stander, professor of dermatology at the University of Munster (Germany).

Prurigo nodularis is a chronic skin condition characterized by numerous intensely pruritic, symmetrically distributed, erosive nodular lesions. As Dr. Stander and her fellow members of the EADV Task Force Pruritus recently reported, prurigo nodularis should be considered as one of the clinical manifestations of chronic prurigo, hallmarks of which include neuronal sensitization to itch and development of an itch-scratch cycle (J Eur Acad Dermatol Venereol. 2018 Jul;32[7]:1059-65). At present, there is no approved treatment for prurigo nodularis in the United States or Europe.

Despite its name, prurigo nodularis is not just about the itch. Additional symptoms were frequently reported by participants in the serlopitant study. Indeed, while 97% of participants reported experiencing devilish pruritus, 52% reported a burning sensation on involved skin, 41% said the lesions were painful, and 36% indicated they were plagued by a stinging sensation. All of these disturbing sensations were significantly reduced with 8 weeks of serlopitant in the trial.

Courtesy Dr. Adam Friedman, Washington, D.C.

The clinical implications of these baseline findings are clear: “We have to ask not only about itch, but also about pain and burning and stinging, which are really an issue with these patients,” the dermatologist said.

Dr. Stander noted that prurigo nodularis has a large negative impact on quality of life as reflected in study participants’ mean baseline Dermatology Life Quality Index score of 61. And it’s a disease that sticks around: At enrollment, 38% of subjects had a 1- to 5-year history of prurigo nodularis, 20% had had the disease for 5-10 years, and fully 29% had had prurigo nodularis for longer than 10 years.

“This is not a chronic relapsing disease. These patients had prurigo nodularis all the time,” Dr. Stander said.

Consistent with the findings of other studies, half of patients with prurigo nodularis had an atopic predisposition as defined by an Erlangen Atopy Questionnaire score of 10 or higher.


Patients in the phase 2 study were randomized to either a 15-mg loading dose of oral serlopitant followed by 5 mg/day for 8 weeks or to placebo. All four of the most common manifestations of prurigo nodularis – itching, burning, pain, and stinging – were reduced to a significantly greater extent in the serlopitant group than with placebo. For example, the proportion of serlopitant-treated patients who rated their itching as none or mild went from zero at baseline to 54% at week 8, as compared with 26% among placebo-treated controls. After 8 weeks, 46% of serlopitant-treated patients rated their itching as moderate, severe, or very severe, as did 71% of controls.

Similarly, the proportion of patients in the serlopitant group who reported no or only a mild burning sensation climbed from 41% at baseline to 73% after 8 weeks. In the control group, the proportion improved from 36% to 47% over the course of 8 weeks. At week 8, 27% of patients on serlopitant characterized themselves as experiencing a moderate, severe, or very severe burning sensation; the rate was twice as high in controls.

Although the stinging sensation associated with prurigo nodularis was significantly reduced by serlopitant, the effect was less robust than with the other common sensory expressions of the disease. The proportion of patients with no or mild stinging increased by an absolute 23% after 8 weeks on serlopitant and by 6% with placebo. At week 8, 22% of patients treated with the neurokinin-1 receptor antagonist complained of a moderate to very severe stinging sensation, as did 40% of controls.

As a neurokinin-1 receptor antagonist, serlopitant inhibits substance P. The drug’s efficacy suggests that substance P plays a role in inducing the itch and other sensory symptoms of prurigo nodularis, according to Dr. Stander.

Based upon the favorable phase 2 results, multiple phase 3 clinical trials of serlopitant for prurigo nodularis are underway in the United States and elsewhere, including a year-long safety study.

Serlopitant is being developed by Menlo Therapeutics. Dr. Stander reported receiving research funding from and serving as a consultant to the company.

[email protected]

PARIS – The investigational oral neurokinin-1 receptor antagonist serlopitant significantly reduced multiple distressing sensory symptoms of prurigo nodularis in a 127-patient, randomized, placebo-controlled trial, Sonja Stander, MD, said at the annual congress of the European Academy of Dermatology and Venereology.

She used her speaker’s platform not only to present key outcomes of the phase 2 study, but also to explain some of the underappreciated aspects of prurigo nodularis and how the results shed new light on the pathogenesis of the disease.

“There is a knowledge gap regarding this disease,” observed Dr. Stander, professor of dermatology at the University of Munster (Germany).

Prurigo nodularis is a chronic skin condition characterized by numerous intensely pruritic, symmetrically distributed, erosive nodular lesions. As Dr. Stander and her fellow members of the EADV Task Force Pruritus recently reported, prurigo nodularis should be considered as one of the clinical manifestations of chronic prurigo, hallmarks of which include neuronal sensitization to itch and development of an itch-scratch cycle (J Eur Acad Dermatol Venereol. 2018 Jul;32[7]:1059-65). At present, there is no approved treatment for prurigo nodularis in the United States or Europe.

Despite its name, prurigo nodularis is not just about the itch. Additional symptoms were frequently reported by participants in the serlopitant study. Indeed, while 97% of participants reported experiencing devilish pruritus, 52% reported a burning sensation on involved skin, 41% said the lesions were painful, and 36% indicated they were plagued by a stinging sensation. All of these disturbing sensations were significantly reduced with 8 weeks of serlopitant in the trial.

Courtesy Dr. Adam Friedman, Washington, D.C.

The clinical implications of these baseline findings are clear: “We have to ask not only about itch, but also about pain and burning and stinging, which are really an issue with these patients,” the dermatologist said.

Dr. Stander noted that prurigo nodularis has a large negative impact on quality of life as reflected in study participants’ mean baseline Dermatology Life Quality Index score of 61. And it’s a disease that sticks around: At enrollment, 38% of subjects had a 1- to 5-year history of prurigo nodularis, 20% had had the disease for 5-10 years, and fully 29% had had prurigo nodularis for longer than 10 years.

“This is not a chronic relapsing disease. These patients had prurigo nodularis all the time,” Dr. Stander said.

Consistent with the findings of other studies, half of patients with prurigo nodularis had an atopic predisposition as defined by an Erlangen Atopy Questionnaire score of 10 or higher.


Patients in the phase 2 study were randomized to either a 15-mg loading dose of oral serlopitant followed by 5 mg/day for 8 weeks or to placebo. All four of the most common manifestations of prurigo nodularis – itching, burning, pain, and stinging – were reduced to a significantly greater extent in the serlopitant group than with placebo. For example, the proportion of serlopitant-treated patients who rated their itching as none or mild went from zero at baseline to 54% at week 8, as compared with 26% among placebo-treated controls. After 8 weeks, 46% of serlopitant-treated patients rated their itching as moderate, severe, or very severe, as did 71% of controls.

Similarly, the proportion of patients in the serlopitant group who reported no or only a mild burning sensation climbed from 41% at baseline to 73% after 8 weeks. In the control group, the proportion improved from 36% to 47% over the course of 8 weeks. At week 8, 27% of patients on serlopitant characterized themselves as experiencing a moderate, severe, or very severe burning sensation; the rate was twice as high in controls.

Although the stinging sensation associated with prurigo nodularis was significantly reduced by serlopitant, the effect was less robust than with the other common sensory expressions of the disease. The proportion of patients with no or mild stinging increased by an absolute 23% after 8 weeks on serlopitant and by 6% with placebo. At week 8, 22% of patients treated with the neurokinin-1 receptor antagonist complained of a moderate to very severe stinging sensation, as did 40% of controls.

As a neurokinin-1 receptor antagonist, serlopitant inhibits substance P. The drug’s efficacy suggests that substance P plays a role in inducing the itch and other sensory symptoms of prurigo nodularis, according to Dr. Stander.

Based upon the favorable phase 2 results, multiple phase 3 clinical trials of serlopitant for prurigo nodularis are underway in the United States and elsewhere, including a year-long safety study.

Serlopitant is being developed by Menlo Therapeutics. Dr. Stander reported receiving research funding from and serving as a consultant to the company.

[email protected]

WASHINGTON – Ataxia is the most common symptom at disease onset in patients with opsoclonus-myoclonus syndrome (OMS), a rare disease affecting only 1 in 5,000,000 individuals, mostly aged 1-5 years, based on data from a new patient registry.

In partnership with the National Organization of Rare Disorders (NORD) the nonprofit OMSLife Foundation has created a patient registry to better understand the disease experience in patients, wrote Mike Michaelis, chairman of OMSLife, and his colleagues. Early data from 275 enrolled patients were presented in a poster at the NORD Rare Summit, held by the National Organization for Rare Disorders.

The registry patients were mainly born in the United States (86%) and white (74%); approximately half were female. Of 150 patients who indicated symptoms at onset, 87% reported ataxia. Additional symptoms at onset were myoclonus (61%), opsoclonus (59%), tremors (46%), sleep disturbances (45%), temper tantrums (38%), vomiting (27%), fever (13%), headache (9%) and other symptoms (13%).

The researchers reviewed associations of symptoms at onset to determine the frequency of other symptoms for each individual symptom. Ataxia was present with 89% or higher instances of the other reported symptoms. Of note, some symptoms occurred more frequently than expected, such as temper tantrums and tremors in approximately 70% of patients with sleep disturbances. Myoclonus and opsoclonus, as well as fever and vomiting, also were significantly associated with the presence of other symptoms.

Two-thirds of the registry patients (69%) were diagnosed within 3 months of symptom onset, and 83% of these were diagnosed by a neurologist. Based on the Mitchell-Pike OMS severity scale, 59% of the patients met criteria for severe disease, 34% were classified as moderate, and 7% were mild. The registry is ongoing, but the current data provide insight on the clinical picture and common symptoms of OMS, the researchers said.

OMS Life was established in 2012 to support patients, caregivers, and researchers in raising awareness of opsoclonus-myoclonus syndrome as well as funds for research.

The study was supported by the OMSLife Foundation, NORD, and Trio Health Analytics. The researchers are employed by these organizations.

WASHINGTON – Ataxia is the most common symptom at disease onset in patients with opsoclonus-myoclonus syndrome (OMS), a rare disease affecting only 1 in 5,000,000 individuals, mostly aged 1-5 years, based on data from a new patient registry.

In partnership with the National Organization of Rare Disorders (NORD) the nonprofit OMSLife Foundation has created a patient registry to better understand the disease experience in patients, wrote Mike Michaelis, chairman of OMSLife, and his colleagues. Early data from 275 enrolled patients were presented in a poster at the NORD Rare Summit, held by the National Organization for Rare Disorders.

The registry patients were mainly born in the United States (86%) and white (74%); approximately half were female. Of 150 patients who indicated symptoms at onset, 87% reported ataxia. Additional symptoms at onset were myoclonus (61%), opsoclonus (59%), tremors (46%), sleep disturbances (45%), temper tantrums (38%), vomiting (27%), fever (13%), headache (9%) and other symptoms (13%).

The researchers reviewed associations of symptoms at onset to determine the frequency of other symptoms for each individual symptom. Ataxia was present with 89% or higher instances of the other reported symptoms. Of note, some symptoms occurred more frequently than expected, such as temper tantrums and tremors in approximately 70% of patients with sleep disturbances. Myoclonus and opsoclonus, as well as fever and vomiting, also were significantly associated with the presence of other symptoms.

Two-thirds of the registry patients (69%) were diagnosed within 3 months of symptom onset, and 83% of these were diagnosed by a neurologist. Based on the Mitchell-Pike OMS severity scale, 59% of the patients met criteria for severe disease, 34% were classified as moderate, and 7% were mild. The registry is ongoing, but the current data provide insight on the clinical picture and common symptoms of OMS, the researchers said.

OMS Life was established in 2012 to support patients, caregivers, and researchers in raising awareness of opsoclonus-myoclonus syndrome as well as funds for research.

The study was supported by the OMSLife Foundation, NORD, and Trio Health Analytics. The researchers are employed by these organizations.

WASHINGTON – Ataxia is the most common symptom at disease onset in patients with opsoclonus-myoclonus syndrome (OMS), a rare disease affecting only 1 in 5,000,000 individuals, mostly aged 1-5 years, based on data from a new patient registry.

In partnership with the National Organization of Rare Disorders (NORD) the nonprofit OMSLife Foundation has created a patient registry to better understand the disease experience in patients, wrote Mike Michaelis, chairman of OMSLife, and his colleagues. Early data from 275 enrolled patients were presented in a poster at the NORD Rare Summit, held by the National Organization for Rare Disorders.

The registry patients were mainly born in the United States (86%) and white (74%); approximately half were female. Of 150 patients who indicated symptoms at onset, 87% reported ataxia. Additional symptoms at onset were myoclonus (61%), opsoclonus (59%), tremors (46%), sleep disturbances (45%), temper tantrums (38%), vomiting (27%), fever (13%), headache (9%) and other symptoms (13%).

The researchers reviewed associations of symptoms at onset to determine the frequency of other symptoms for each individual symptom. Ataxia was present with 89% or higher instances of the other reported symptoms. Of note, some symptoms occurred more frequently than expected, such as temper tantrums and tremors in approximately 70% of patients with sleep disturbances. Myoclonus and opsoclonus, as well as fever and vomiting, also were significantly associated with the presence of other symptoms.

Two-thirds of the registry patients (69%) were diagnosed within 3 months of symptom onset, and 83% of these were diagnosed by a neurologist. Based on the Mitchell-Pike OMS severity scale, 59% of the patients met criteria for severe disease, 34% were classified as moderate, and 7% were mild. The registry is ongoing, but the current data provide insight on the clinical picture and common symptoms of OMS, the researchers said.

OMS Life was established in 2012 to support patients, caregivers, and researchers in raising awareness of opsoclonus-myoclonus syndrome as well as funds for research.

The study was supported by the OMSLife Foundation, NORD, and Trio Health Analytics. The researchers are employed by these organizations.

CHICAGO—The Children’s Hospital of Philadelphia Infant Test of Neuromuscular Disorders (CHOP-INTEND) was designed to track motor function in patients with spinal muscular atrophy type 1 (SMA1), but the test may not be sensitive to advances in motor function made by patients who receive an investigational gene-replacement therapy, researchers said at the 47th Annual Meeting of the Child Neurology Society.

AVXS-101 is an adeno-associated virus serotype 9 (AAV9)-based gene-replacement therapy that contains a copy of the SMN1 gene. AVXS-101 crosses the blood–brain barrier and is meant to treat the deletion or loss of function of the SMN1 gene in patients with SMA. The treatment may result in sustained SMN protein expression with a one-time dose.

Researchers conducted a phase I, open-label, dose-escalation study to study the treatment. Fifteen patients received AVXS-101 intravenously, and 12 participants received the proposed therapeutic dose.

“Patients treated with AVXS-101 achieved and maintained motor milestones unprecedented in the natural history of SMA1,” said Linda P. Lowes, PT, PhD, Principal Investigator for the Center for Gene Therapy at Nationwide Children’s Hospital in Columbus, Ohio, and Associate Professor of Pediatrics at Ohio State University, and colleagues. “CHOP-INTEND is a reliable tool for detecting early treatment impact, but appears insensitive to further motor function gains among AVXS-101–treated children as they age and develop.”

CHICAGO—The Children’s Hospital of Philadelphia Infant Test of Neuromuscular Disorders (CHOP-INTEND) was designed to track motor function in patients with spinal muscular atrophy type 1 (SMA1), but the test may not be sensitive to advances in motor function made by patients who receive an investigational gene-replacement therapy, researchers said at the 47th Annual Meeting of the Child Neurology Society.

AVXS-101 is an adeno-associated virus serotype 9 (AAV9)-based gene-replacement therapy that contains a copy of the SMN1 gene. AVXS-101 crosses the blood–brain barrier and is meant to treat the deletion or loss of function of the SMN1 gene in patients with SMA. The treatment may result in sustained SMN protein expression with a one-time dose.

Researchers conducted a phase I, open-label, dose-escalation study to study the treatment. Fifteen patients received AVXS-101 intravenously, and 12 participants received the proposed therapeutic dose.

“Patients treated with AVXS-101 achieved and maintained motor milestones unprecedented in the natural history of SMA1,” said Linda P. Lowes, PT, PhD, Principal Investigator for the Center for Gene Therapy at Nationwide Children’s Hospital in Columbus, Ohio, and Associate Professor of Pediatrics at Ohio State University, and colleagues. “CHOP-INTEND is a reliable tool for detecting early treatment impact, but appears insensitive to further motor function gains among AVXS-101–treated children as they age and develop.”

CHICAGO—The Children’s Hospital of Philadelphia Infant Test of Neuromuscular Disorders (CHOP-INTEND) was designed to track motor function in patients with spinal muscular atrophy type 1 (SMA1), but the test may not be sensitive to advances in motor function made by patients who receive an investigational gene-replacement therapy, researchers said at the 47th Annual Meeting of the Child Neurology Society.

AVXS-101 is an adeno-associated virus serotype 9 (AAV9)-based gene-replacement therapy that contains a copy of the SMN1 gene. AVXS-101 crosses the blood–brain barrier and is meant to treat the deletion or loss of function of the SMN1 gene in patients with SMA. The treatment may result in sustained SMN protein expression with a one-time dose.

Researchers conducted a phase I, open-label, dose-escalation study to study the treatment. Fifteen patients received AVXS-101 intravenously, and 12 participants received the proposed therapeutic dose.

“Patients treated with AVXS-101 achieved and maintained motor milestones unprecedented in the natural history of SMA1,” said Linda P. Lowes, PT, PhD, Principal Investigator for the Center for Gene Therapy at Nationwide Children’s Hospital in Columbus, Ohio, and Associate Professor of Pediatrics at Ohio State University, and colleagues. “CHOP-INTEND is a reliable tool for detecting early treatment impact, but appears insensitive to further motor function gains among AVXS-101–treated children as they age and develop.”

Infusion of allogeneic BK virus–specific T cells may be an effective treatment for patients with progressive multifocal leukoencephalopathy (PML), according to investigators from the University of Texas MD Anderson Cancer Center, Houston.

The infusion cleared JC virus from the cerebrospinal fluid (CSF) of two patients and reduced viral load in the third, reported lead author Muharrem Muftuoglu, MD, of MD Anderson’s department of stem cell transplantation and cellular therapy and colleagues. One of the patients completely recovered and returned to work.

Jochen Sand/Thinkstock

“Several approaches for the treatment of PML, including the use of antiviral medications and mirtazapine, have been tested, with poor results,” the investigators wrote in the New England Journal of Medicine. Although virus-specific T-cell infusion is a novel approach to treating PML, this method has been used for other conditions.

“Several groups, including ours, have successfully used viral-specific T cells to treat BK virus infection after stem-cell transplantation,” the investigators wrote. “Because BK virus and JC virus are genetically similar to one another and share a number of immunogenic proteins with a substantial degree of sequence homology ... we hypothesized that T cells developed against BK virus may also be effective against JC virus infection.”

This hypothesis proved accurate. The investigators infused three PML patients with “cryopreserved, third-party–produced, viral-specific T cells that had been designed for the treatment of patients with BK virus infection after stem-cell transplantation.” Each patient presented with a different condition and PML-precipitating therapy. The first patient was a 32-year-old woman with high-risk acute myeloid leukemia who had received a cord-blood transplantation, the second a 73-year-old woman with JAK2-positive myeloproliferative neoplasia on ruxolitinib (Jakafi) therapy, and the third a 35-year-old man with HIV who had received highly active antiretroviral therapy.

T-cell infusions cleared JC virus from the CSF of the woman with leukemia (three infusions) and the man with HIV (four infusions). These patients recovered to different degrees: The woman had full resolution of symptoms, while the man had slurred speech and walked with a cane. Treatment reduced JC viral load in the elderly woman with myeloproliferative neoplasia (two infusions), but she did not clear the virus and died about 8 months later.

No adverse events occurred, but two patients developed immune reconstitution inflammatory syndrome. This was likely caused by the T-cell infusion, since absolute T-cell counts remained steady and white matter enhancement was detected on MRI within 4 weeks of treatment. Still, the investigators were optimistic about future potential.

“Third-party–produced, ‘off-the-shelf,’ partially HLA-matched, BK virus–specific T cells may serve as therapy for PML,” the investigators concluded. “Further study in a larger group of patients is required to determine the success rate, durability, and longer-term adverse events associated with this treatment.”

The study was funded by the MD Anderson Cancer Center Moon Shots Program and the National Institutes of Health.

SOURCE: Muftuoglu M et al. N Engl J Med. 2018 Oct 11;379:1443-51

This article was updated 3/22/19.

Infusion of allogeneic BK virus–specific T cells may be an effective treatment for patients with progressive multifocal leukoencephalopathy (PML), according to investigators from the University of Texas MD Anderson Cancer Center, Houston.

The infusion cleared JC virus from the cerebrospinal fluid (CSF) of two patients and reduced viral load in the third, reported lead author Muharrem Muftuoglu, MD, of MD Anderson’s department of stem cell transplantation and cellular therapy and colleagues. One of the patients completely recovered and returned to work.

Jochen Sand/Thinkstock

“Several approaches for the treatment of PML, including the use of antiviral medications and mirtazapine, have been tested, with poor results,” the investigators wrote in the New England Journal of Medicine. Although virus-specific T-cell infusion is a novel approach to treating PML, this method has been used for other conditions.

“Several groups, including ours, have successfully used viral-specific T cells to treat BK virus infection after stem-cell transplantation,” the investigators wrote. “Because BK virus and JC virus are genetically similar to one another and share a number of immunogenic proteins with a substantial degree of sequence homology ... we hypothesized that T cells developed against BK virus may also be effective against JC virus infection.”

This hypothesis proved accurate. The investigators infused three PML patients with “cryopreserved, third-party–produced, viral-specific T cells that had been designed for the treatment of patients with BK virus infection after stem-cell transplantation.” Each patient presented with a different condition and PML-precipitating therapy. The first patient was a 32-year-old woman with high-risk acute myeloid leukemia who had received a cord-blood transplantation, the second a 73-year-old woman with JAK2-positive myeloproliferative neoplasia on ruxolitinib (Jakafi) therapy, and the third a 35-year-old man with HIV who had received highly active antiretroviral therapy.

T-cell infusions cleared JC virus from the CSF of the woman with leukemia (three infusions) and the man with HIV (four infusions). These patients recovered to different degrees: The woman had full resolution of symptoms, while the man had slurred speech and walked with a cane. Treatment reduced JC viral load in the elderly woman with myeloproliferative neoplasia (two infusions), but she did not clear the virus and died about 8 months later.

No adverse events occurred, but two patients developed immune reconstitution inflammatory syndrome. This was likely caused by the T-cell infusion, since absolute T-cell counts remained steady and white matter enhancement was detected on MRI within 4 weeks of treatment. Still, the investigators were optimistic about future potential.

“Third-party–produced, ‘off-the-shelf,’ partially HLA-matched, BK virus–specific T cells may serve as therapy for PML,” the investigators concluded. “Further study in a larger group of patients is required to determine the success rate, durability, and longer-term adverse events associated with this treatment.”

The study was funded by the MD Anderson Cancer Center Moon Shots Program and the National Institutes of Health.

SOURCE: Muftuoglu M et al. N Engl J Med. 2018 Oct 11;379:1443-51

This article was updated 3/22/19.

Infusion of allogeneic BK virus–specific T cells may be an effective treatment for patients with progressive multifocal leukoencephalopathy (PML), according to investigators from the University of Texas MD Anderson Cancer Center, Houston.

The infusion cleared JC virus from the cerebrospinal fluid (CSF) of two patients and reduced viral load in the third, reported lead author Muharrem Muftuoglu, MD, of MD Anderson’s department of stem cell transplantation and cellular therapy and colleagues. One of the patients completely recovered and returned to work.

Jochen Sand/Thinkstock

“Several approaches for the treatment of PML, including the use of antiviral medications and mirtazapine, have been tested, with poor results,” the investigators wrote in the New England Journal of Medicine. Although virus-specific T-cell infusion is a novel approach to treating PML, this method has been used for other conditions.

“Several groups, including ours, have successfully used viral-specific T cells to treat BK virus infection after stem-cell transplantation,” the investigators wrote. “Because BK virus and JC virus are genetically similar to one another and share a number of immunogenic proteins with a substantial degree of sequence homology ... we hypothesized that T cells developed against BK virus may also be effective against JC virus infection.”

This hypothesis proved accurate. The investigators infused three PML patients with “cryopreserved, third-party–produced, viral-specific T cells that had been designed for the treatment of patients with BK virus infection after stem-cell transplantation.” Each patient presented with a different condition and PML-precipitating therapy. The first patient was a 32-year-old woman with high-risk acute myeloid leukemia who had received a cord-blood transplantation, the second a 73-year-old woman with JAK2-positive myeloproliferative neoplasia on ruxolitinib (Jakafi) therapy, and the third a 35-year-old man with HIV who had received highly active antiretroviral therapy.

T-cell infusions cleared JC virus from the CSF of the woman with leukemia (three infusions) and the man with HIV (four infusions). These patients recovered to different degrees: The woman had full resolution of symptoms, while the man had slurred speech and walked with a cane. Treatment reduced JC viral load in the elderly woman with myeloproliferative neoplasia (two infusions), but she did not clear the virus and died about 8 months later.

No adverse events occurred, but two patients developed immune reconstitution inflammatory syndrome. This was likely caused by the T-cell infusion, since absolute T-cell counts remained steady and white matter enhancement was detected on MRI within 4 weeks of treatment. Still, the investigators were optimistic about future potential.

“Third-party–produced, ‘off-the-shelf,’ partially HLA-matched, BK virus–specific T cells may serve as therapy for PML,” the investigators concluded. “Further study in a larger group of patients is required to determine the success rate, durability, and longer-term adverse events associated with this treatment.”

The study was funded by the MD Anderson Cancer Center Moon Shots Program and the National Institutes of Health.

SOURCE: Muftuoglu M et al. N Engl J Med. 2018 Oct 11;379:1443-51

This article was updated 3/22/19.

The Food and Drug Administration has approved inotersen for treating polyneuropathy of hereditary transthyretin-mediated amyloidosis (hATTR) in adults, the second treatment approved in 2 months for the rare genetic disorder.

Wikimedia Commons/FitzColinGerald/Creative Commons License

Inotersen is a transthyretin-directed antisense oligonucleotide that inhibits production of the transthyretin (TTR) protein (amyloid), according to the FDA statement announcing the approval on Oct. 5. It is administered in a subcutaneous injection once a week and will be marketed as Tegsedi. In August, the FDA approved the first treatment for hATTR, patisiran (Onpattro).

The FDA statement described hATTR as a “rare, debilitating, and often fatal genetic disease characterized by the buildup of abnormal amyloid protein in peripheral nerves, the heart, and other organs,” with signs and symptoms that include effects on “sensation (pain and temperature), autonomic function (blood pressure changes and bowel and digestive problems), and muscle strength (weakness and immobility in the arms, legs, hands, and feet),” caused by amyloid deposition in the peripheral nervous system.

The mechanism-of-action section of the prescribing information states that inotersen “causes degradation of mutant and wild-type TTR mRNA through binding to the TTR mRNA, which results in a reduction of serum TTR protein and TTR protein deposits in tissues.”

A statement issued by the manufacturer, Ionis Pharmaceuticals, said that approval was based on a phase 3 study of patients with hATTR amyloidosis and polyneuropathy symptoms, which found significantly greater benefits among those treated with inotersen, compared with placebo, using primary endpoints that measured quality of life related to neuropathy and a measure of neuropathic disease progression.

Contraindications to inotersen include a history of acute glomerulonephritis caused by inotersen, history of a hypersensitivity reaction to the agent, and a platelet count below 100 × 10⁹/L; the label includes a boxed warning about thrombocytopenia and glomerulonephritis associated with treatment. The drug also is being marketed with a risk evaluation and mitigation strategy (REMS).

Patisiran, the treatment approved in August, results in “degradation of mutant and wild-type TTR mRNA through RNA interference, which results in a reduction of serum TTR protein and TTR protein deposits in tissues,” according to its prescribing information.

[email protected]

The Food and Drug Administration has approved inotersen for treating polyneuropathy of hereditary transthyretin-mediated amyloidosis (hATTR) in adults, the second treatment approved in 2 months for the rare genetic disorder.

Wikimedia Commons/FitzColinGerald/Creative Commons License

Inotersen is a transthyretin-directed antisense oligonucleotide that inhibits production of the transthyretin (TTR) protein (amyloid), according to the FDA statement announcing the approval on Oct. 5. It is administered in a subcutaneous injection once a week and will be marketed as Tegsedi. In August, the FDA approved the first treatment for hATTR, patisiran (Onpattro).

The FDA statement described hATTR as a “rare, debilitating, and often fatal genetic disease characterized by the buildup of abnormal amyloid protein in peripheral nerves, the heart, and other organs,” with signs and symptoms that include effects on “sensation (pain and temperature), autonomic function (blood pressure changes and bowel and digestive problems), and muscle strength (weakness and immobility in the arms, legs, hands, and feet),” caused by amyloid deposition in the peripheral nervous system.

The mechanism-of-action section of the prescribing information states that inotersen “causes degradation of mutant and wild-type TTR mRNA through binding to the TTR mRNA, which results in a reduction of serum TTR protein and TTR protein deposits in tissues.”

A statement issued by the manufacturer, Ionis Pharmaceuticals, said that approval was based on a phase 3 study of patients with hATTR amyloidosis and polyneuropathy symptoms, which found significantly greater benefits among those treated with inotersen, compared with placebo, using primary endpoints that measured quality of life related to neuropathy and a measure of neuropathic disease progression.

Contraindications to inotersen include a history of acute glomerulonephritis caused by inotersen, history of a hypersensitivity reaction to the agent, and a platelet count below 100 × 10⁹/L; the label includes a boxed warning about thrombocytopenia and glomerulonephritis associated with treatment. The drug also is being marketed with a risk evaluation and mitigation strategy (REMS).

Patisiran, the treatment approved in August, results in “degradation of mutant and wild-type TTR mRNA through RNA interference, which results in a reduction of serum TTR protein and TTR protein deposits in tissues,” according to its prescribing information.

[email protected]

The Food and Drug Administration has approved inotersen for treating polyneuropathy of hereditary transthyretin-mediated amyloidosis (hATTR) in adults, the second treatment approved in 2 months for the rare genetic disorder.

Wikimedia Commons/FitzColinGerald/Creative Commons License

Inotersen is a transthyretin-directed antisense oligonucleotide that inhibits production of the transthyretin (TTR) protein (amyloid), according to the FDA statement announcing the approval on Oct. 5. It is administered in a subcutaneous injection once a week and will be marketed as Tegsedi. In August, the FDA approved the first treatment for hATTR, patisiran (Onpattro).

The FDA statement described hATTR as a “rare, debilitating, and often fatal genetic disease characterized by the buildup of abnormal amyloid protein in peripheral nerves, the heart, and other organs,” with signs and symptoms that include effects on “sensation (pain and temperature), autonomic function (blood pressure changes and bowel and digestive problems), and muscle strength (weakness and immobility in the arms, legs, hands, and feet),” caused by amyloid deposition in the peripheral nervous system.

The mechanism-of-action section of the prescribing information states that inotersen “causes degradation of mutant and wild-type TTR mRNA through binding to the TTR mRNA, which results in a reduction of serum TTR protein and TTR protein deposits in tissues.”

A statement issued by the manufacturer, Ionis Pharmaceuticals, said that approval was based on a phase 3 study of patients with hATTR amyloidosis and polyneuropathy symptoms, which found significantly greater benefits among those treated with inotersen, compared with placebo, using primary endpoints that measured quality of life related to neuropathy and a measure of neuropathic disease progression.

Contraindications to inotersen include a history of acute glomerulonephritis caused by inotersen, history of a hypersensitivity reaction to the agent, and a platelet count below 100 × 10⁹/L; the label includes a boxed warning about thrombocytopenia and glomerulonephritis associated with treatment. The drug also is being marketed with a risk evaluation and mitigation strategy (REMS).

Patisiran, the treatment approved in August, results in “degradation of mutant and wild-type TTR mRNA through RNA interference, which results in a reduction of serum TTR protein and TTR protein deposits in tissues,” according to its prescribing information.

[email protected]