Cushing’s disease associated with USP8 mutations

Posted on April 5, 2016 by MaryO

endo2016

 

April 04, 2016

Oral Session: Pituitary Patients and Outcomes

Cushing’s disease associated with USP8 mutations

RR Correa, FR Faucz, A Angelousi, N Settas, P Chittiboina, MB Lodish, CA Stratakis

Summary: In Cushing’s disease (CD), pituitary corticotroph adenomas secrete excessive adrenocorticotropic hormone (ACTH), resulting in hypercortisolism. Often, the genetic pathogenesis of CD remains unknown, but recent studies have shown that the ubiquitin-specific protease 8 gene (USP8) is frequently mutated in CD. This gene codes for a protein deubiquitinase that inhibits the lysosomal degradation of the epidermal growth factor receptor. Researchers determined that pediatric patients with USP8 mutations were predominantly female and presented with higher ACTH levels than control patients.

Methods:

  • To further study the prevalence of mutations in USP8, researchers sequenced the complete USP8-coding and surrounding intronic regions in 97 patients with diagnosed CD by Sanger sequencing of germline DNA (n=97) and tumor DNA (n=50).
  • They analuzed biochemical and clinical characteristics in all the patients with predicted (by in silico analysis) damaging USP8 mutations and it was compared to patients without the mutation (control).

Results:

  • Overall researchers identified 18 (18.5%) patients with corticotroph adenomas who had USP8mutations, 13 with germline mutation, 2 with a germline and a new somatic mutation, and 5 with somatic mutation only.
  • All the somatic mutations that were not present at the germline level were mutations in the previously described hotspot.
  • Female-to-male ratio in the patients with USP8 mutations was 3.5:1 compared to the control ratio of 1:1 (P=0.05).
  • The mean age was 13 years old (range 6-18) and 72% (13/18) were whites.
  • Three of the mutant tumors were macroadenomas (≥ 1 cm) and 15 were microadenomas (< 1 cm).
  • In cases, mean basal plasma ACTH was 53.2±28.5 pg/mL and 39.6±19.1 pg/mL in the control group (P=0.02).
  • Researchers did not note any statistically significant differences in cortisol levels between the groups.

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Cushing’s Syndrome and Primary Adrenal Disorders

Posted on April 5, 2016 by MaryO

endo2016

 

April 03, 2016

Oral Session: Cushing’s Syndrome and Primary Adrenal Disorders

Patients with diabetes mellitus diagnosed with Addison’s disease have a markedly increased additional risk of death

D Chantzichristos, A Persson, B Eliasson, M Miftaraj, S Franzén, R Bergthorsdottir, S Gudbjörnsdottir, A-M Svensson, G Johannsson

Summary: Researchers sought to determine if patients with diabetes (DM) who are diagnosed with Addison’s disease (AD) have an increased risk of mortality (DM+AD). They concluded that patients diagnosed with DM+AD had a nearly 4-fold increased risk of mortality compared to controls.

Methods:

  • Researchers identified patients who were first diagnosed with DM (type 1 or 2) and then AD using both the Swedish National Diabetes Register (NDR) and the National Inpatient Register between January 1st, 1996 and December 31th, 2012.
  • Each patients was matched with 5 controls based on sex, year of birth, type of DM, year when DM was diagnosed, and period of time in NDR were selected in NDR.
  • Researchers obtained causes of death data for both groups during the same time period from the Swedish Register for Cause-Specific Mortality.

Results:

  • A total of 1,355 patients were identified: 226 patients had DM (type 1 or 2) and AD and 1,129 matched DM controls.
  • At baseline, patients with DM+AD and patients with DM had a mean (±SD) age of 52.3 (±20.1) and 54.1 (±18.9) years, respectively.
  • In both groups, 47% were women and 65% had type 1 DM.
  • Mean (±SD) HbA1c at baseline was 7.8% (±3.5%) or 62.0 (±14.7) mmol/mol for the DM+AD group and 7.6% (±3.5%) or 59.6 (±14.7) mmol/mol for the DM controls.
  •  More than one-quarter of patients with DM+AD (64/226, 28%) died vs 112 of 1,129 controls (10%).
  • The estimated relative risk increase (hazard ratio) in overall mortality in the DM+AD group was 3.83 (95% confidence interval, 2.80 to 5.24) compared with the DM controls.
  • There was no significant association between type of DM and gender on relative mortality risk.
  • The most common cause of death in both groups was cardiovascular diseases (33% and 34%, respectively).
  • The second most common cause of death in DM+AD patients was DM and its related complications (23%) and cancer in the DM group (29%).
  • Fourteen percent of DM+AD patients died from cancer.

From http://www.mdlinx.com/endocrinology/conference-abstract.cfm/ZZ6AA1CEC190F5428EA690616DAA054518/56981/?utm_source=confcoveragenl&utm_medium=newsletter&utm_content=abstract-list&utm_campaign=abstract-ENDO2016&nonus=0

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Preclinical Data for ALD1613 at ENDO 2016

Posted on April 4, 2016 by MaryO

Alder BioPharmaceuticals, Inc. (“Alder”) (NASDAQ:ALDR), today announced that preclinical data on ALD1613, its anti-adrenocorticotropic hormone (ACTH) antibody for the treatment of congenital adrenal hyperplasia (CAH) and Cushing’s disease, were presented today by Andrew L. Feldhaus, Ph.D., in a poster presentation at ENDO 2016, the Endocrine Society’s 98th Annual Meeting in Boston, Mass. The presentation entitled “A Novel Anti-ACTH Antibody (ALD1613) Neutralizes ACTH Activity and Reduces Glucocorticoids in Rats and Nonhuman Primates” was presented as a late-breaking abstract.

Key Points:

  • In vitro, ALD1613 inhibits ACTH-induced cortisol secretion in a mouse adrenal cell line.
  • ALD1613 administration in rats with artificially elevated ACTH and corticosterone levels resulted in a rapid and durable reduction of plasma corticosterone levels.
  • In non-human primates, ALD1613 demonstrated stable and durable reductions in plasma cortisol levels by >50%.

Quote:

Randall C. Schatzman, Ph.D., President and Chief Executive Officer of Alder, said, “Existing therapeutic options for patients with congenital adrenal hyperplasia and Cushing’s disease comprise treatments that provide limited disease control and involve significant side effects. We believe these limitations indicate a clear need for new therapies such as ALD1613, which targets ACTH to diminish the overproduction of cortisol. The data presented today demonstrate the capacity of ALD1613 to reduce corticosteroid levels in preclinical settings. We intend to use these studies as part of an IND filing that we plan to submit to the FDA in the second half of 2016.”

From https://globenewswire.com/news-release/2016/04/03/825231/0/en/Alder-Presents-Preclinical-Data-for-ALD1613-at-ENDO-2016.html

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Growth Hormone Deficiency Global Clinical Trials

Posted on November 23, 2015 by MaryO

Growth-Hormone-Deficiency

 

“Growth Hormone Deficiency Global 2015 Clinical Trials Review, H2” provides an detailed overview of Growth Hormone Deficiency scenario.
Report includes top line data relating on Growth Hormone Deficiency Global clinical trials scenario.
This report on Growth Hormone Deficiency also includes an review of trial numbers as well as their (Growth Hormone Deficiency) average enrollment in uppermost/top countries which are conducted worldwide.
Growth Hormone Deficiency report also covers disease clinical trials by country (G7 & E7), sponsor type, region, trial status as well as end points status.
Report Growth Hormone Deficiency also Includes prominent drugs for in-progress trials (Note: based on number of ongoing trials).
Scope of Growth Hormone Deficiency Report:-

1. This report includes a snapshot of worldwide clinical trials landscape on Growth Hormone Deficiency scenario.
2. Report on Growth Hormone Deficiency also provides top level data related to the Global clinical trials by country (G7 & E7), sponsor type, region, trial status as well as end points status on Growth Hormone Deficiency scenario
3. Report reviews top companies involved in Growth Hormone Deficiency as well as provides enlists all trials (Trial title, Phase, and Status) pertaining to the company on Growth Hormone Deficiency scenario.
4. This report provides all the unaccomplished trials on Growth Hormone Deficiency scenario (Withdrawn, Terminated and Suspended) with reason for unaccomplishment on Growth Hormone Deficiency.
5. Report on Growth Hormone Deficiency provides enrollment trends for the past five years.
6. Report provides latest news for the past three months
7. Report Also Includes Top news in past 3 months on Growth Hormone Deficiency clinical trials review scenario.

Get Sample Copy of Report Here : http://www.marketresearchstore.com/report/growth-hormone-deficiency-global-clinical-trials-review-h1-27370#requestSample

From http://www.medgadget.com/2015/11/growth-hormone-deficiency-global-clinical-trials-review-2015-market-research-store-size-share-analysis.html

Filed under: Clinical trials, growth hormone, Treatments | Tagged: , | Leave a comment »

COR-003 Clinical Trial for Cushing’s Syndrome

Posted on November 19, 2015 by MaryO

CureClick_Trial_Card_CushingsBLU2

 

This trial is testing the safety and effectiveness of an investigational drug for the treatment of Cushing’s Syndrome. Under the supervision of qualified physicians, cortisol levels and symptoms of Cushing’s Syndrome will be closely followed along with any signs of side effects.

More about the study:

The study drug (COR-003) is administered by tablets.

  • There will be 90 participants in this trial
  • There is no placebo used in the trial

If you are interested, please find the full study details and eligibility criteria listed here.

Eligibility Criteria:

Participants must:

  • be at least 18 years old
  • have been diagnosed with endogenous Cushing’s Syndrome by a medical professional (not caused by the use of steroid medications)

Participants must not:

  • have been treated with radiation for Cushing’s Syndrome in the past 4 years
  • be currently using weight loss medication
  • have been diagnosed with uncontrolled hypertension, some forms of cancer, adrenal carcinoma, Hepatitis B / C, or HIV

Please complete the online questionnaire to check if you’re eligible for the trial.

If you’re not familiar with clinical trials, here are some FAQs:

What are clinical trials?

Clinical trials are research studies to determine whether investigational drugs or treatments are safe and effective for humans. All new investigational medications and devices must undergo several clinical trials, often involving thousands of people.

Why participate in a clinical trial?

You will have access to investigational treatments that would be available to the general public only upon approval. You will also receive study-related medical care and attention from clinical trial staff at research facilities. Clinical trials offer hope for many people and an opportunity to help researchers find better treatments for others in the future.

Learn why I’m posting about this Clinical Trial

Filed under: adrenal, Clinical trials, Cushing's, pituitary, Treatments | Tagged: , , , , | Leave a comment »

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