Cushing’s Help RSS FeedFrom the February, 2022 issue of Reader’s Digest:
Read the original article at readers-digest-misdiagnosed
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Biomarkers in a majority of Cushing’s syndrome patients with surgically induced disease remission showed a high rate of bone turnover and greater bone mineral density one and two years later, a study reports.
Before treatment, these patients were found to have greater bone degradation and poorer bone formation, as can be common to disease-related bone disorders.
Researchers believe their work is the first study of its kind, “and the data obtained will be instrumental for clinicians who care for patients with Cushing’s syndrome.”
The study, “The Effect of Biochemical Remission on Bone Metabolism in Cushing’s Syndrome: A 2‐Year Follow‐Up Study,” was published in the Journal of Bone and Mineral Research.
Two common co-conditions of Cushing’s syndrome are osteopenia, a loss of bone mass, and osteoporosis, in which the body makes too little bone, loses too much bone, or both. Studies suggest up to 80% of people with Cushing’s have evidence of reduced bone mineral density affecting the entire skeleton.
However, few risk factors to predict bone health have been identified so far, and guidelines for osteoporosis management due to Cushing’s are lacking. Uncertainty as to the natural course of osteoporosis once a diagnosis of Cushing’s syndrome has been made is also still evident.
Investigators at the University of Munich, reportedly for a first time, analyzed the natural course of bone mineral density and bone turnover (recycling) in a group of people with endogenous Cushing’s syndrome — which refers to the disease caused by excess cortisol in the bloodstream, often due to a tumor in the adrenal or pituitary glands.
They examined medical records of 89 Cushing syndrome patients with a mean age of 44, of which 74% were women. Of these, 65% had pituitary Cushing’s (Cushing’s disease), 28% had adrenal, and 7% had ectopic Cushing’s, which is caused by tumors outside the adrenal or pituitary glands. A group of 71 age- and sex-matched healthy participants were included as controls.
In all patients, blood samples were collected at the time of diagnosis (baseline) and one and two years after removing one or both adrenal glands or moving tumors affecting the pituitary gland. Blood samples were analyzed for biomarkers related to bone formation and degradation (resorption).
At the study’s beginning, the mean levels of two bone formation markers, osteocalcin and intact PINP, were significantly decreased in patients compared with controls, whereas the bone formation marker alkaline phosphatase was increased.
Both markers for bone degradation — called CTX and TrAcP — were also high, which demonstrated “increased bone resorption and decreased bone formation in [Cushing’s syndrome],” the team wrote.
While bone markers were similar in participants with a reduced bone mass relative to those with a normal bone mass, bone mineral density was lower overall. Bone mineral density was significantly lower in the neck and spine compared with the femur (thigh bone). Normal bone mineral density was reported in 28 (32%) patients, while 46 (52%) had osteopenia, and the remaining 15 (17%) lived with osteoporosis.
A history of low-trauma bone fractures due to osteoporosis occurred in 17 (19%) patients, taking place shortly before diagnosis in more than half of these (58%) people, and more than two years before a Cushing’s diagnosis in the remaining group (42%).
Compared to patients without fractures, those with fractures had a significantly lower T‐score, a bone density measure that represents how close a person is to average peak bone density. While Cushing’s subtype, age, or body mass index (BMI, body fat based on height) did not differ between groups, men had a significantly higher risk of fractures than women (35% of men vs. 14% of women).
Both disease severity and duration did not contribute to fractures rates, but urinary free cortisol (a circulating cortisol measure) was significantly higher in patients with a low T‐score.
At the one year after tumor removal, which led to Cushing’s remission based on blood tests, a significant increase in bone formation markers was reported. These biomarkers decreased slightly at two years post-surgery, but remained elevated.
At the beginning of the study, bone resorption markers were mildly increased, which rose further one year after surgery before returning almost to normal levels by two years. In parallel, bone density measures conducted in 40 patients showed a matching increase in T-score, particularly in the spine.
After two years, bone mineral density improved in 78% of patients, and T-scores improved in 45% of them. No fractures occurred after Cushing’s treatment, and there was no significant correlation between bone turnover markers and better bone mineral density.
“This study analyzes for the first time in a comprehensive way bone turnover markers during the course of [Cushing’s syndrome],” the researchers wrote. “Our data suggest that the phase immediately after remission from [Cushing’s syndrome] is characterized by a high rate of bone turnover, resulting in a spontaneous net increase in bone mineral density in the majority of patients.”
These results “will influence future therapeutic strategies in patients” with Cushing’s syndrome, they added.
Filed under: Cushing's, Rare Diseases, symptoms, Treatments | Tagged: Bone density, Cushing's, surgery | Leave a comment »
The U.S. Food and Drug Administration today approved Isturisa (osilodrostat) oral tablets for adults with Cushing’s disease who either cannot undergo pituitary gland surgery or have undergone the surgery but still have the disease. Cushing’s disease is a rare disease in which the adrenal glands make too much of the cortisol hormone. Isturisa is the first FDA-approved drug to directly address this cortisol overproduction by blocking the enzyme known as 11-beta-hydroxylase and preventing cortisol synthesis.
“The FDA supports the development of safe and effective treatments for rare diseases, and this new therapy can help people with Cushing’s disease, a rare condition where excessive cortisol production puts them at risk for other medical issues,” said Mary Thanh Hai, M.D., acting director of the Office of Drug Evaluation II in the FDA’s Center for Drug Evaluation and Research. “By helping patients achieve normal cortisol levels, this medication is an important treatment option for adults with Cushing’s disease.”
Cushing’s disease is caused by a pituitary tumor that releases too much of a hormone called adrenocorticotropin, which stimulates the adrenal gland to produce an excessive amount of cortisol. The disease is most common among adults between the ages of 30 to 50, and it affects women three times more often than men. Cushing’s disease can cause significant health issues, such as high blood pressure, obesity, type 2 diabetes, blood clots in the legs and lungs, bone loss and fractures, a weakened immune system and depression. Patients may have thin arms and legs, a round red full face, increased fat around the neck, easy bruising, striae (purple stretch marks) and weak muscles.
Isturisa’s safety and effectiveness for treating Cushing’s disease among adults was evaluated in a study of 137 adult patients (about three-quarters women) with a mean age of 41 years. The majority of patients either had undergone pituitary surgery that did not cure Cushing’s disease or were not surgical candidates. In the 24-week, single-arm, open-label period, all patients received a starting dose of 2 milligrams (mg) of Isturisa twice a day that could be increased every two weeks up to 30 mg twice a day. At the end of this 24-week period, about half of patients had cortisol levels within normal limits. After this point, 71 patients who did not need further dose increases and tolerated the drug for the last 12 weeks entered an eight-week, double-blind, randomized withdrawal study where they either received Isturisa or a placebo (inactive treatment). At the end of this withdrawal period, 86% of patients receiving Isturisa maintained cortisol levels within normal limits compared to 30% of patients taking the placebo.
The most common side effects reported in the clinical trial for Isturisa were adrenal insufficiency, headache, vomiting, nausea, fatigue and edema (swelling caused by fluid retention). Hypocortisolism (low cortisol levels), QTc prolongation (a heart rhythm condition) and elevations in adrenal hormone precursors (inactive substance converted into a hormone) and androgens (hormone that regulates male characteristics) may also occur in people taking Isturisa.
Isturisa is taken by mouth twice a day, in the morning and evening as directed by a health care provider. After treatment has started, a provider may re-evaluate dosage, depending upon the patient’s response.
Isturisa received Orphan Drug Designation, which is a special status granted to a drug intended to treat a rare disease or condition.
The FDA granted the approval of Isturisa to Novartis.
Media Contact: Monique Richards, 240-402-3014
Consumer Inquiries: Email, 888-INFO-FDA
The FDA, an agency within the U.S. Department of Health and Human Services, protects the public health by assuring the safety, effectiveness, and security of human and veterinary drugs, vaccines and other biological products for human use, and medical devices. The agency also is responsible for the safety and security of our nation’s food supply, cosmetics, dietary supplements, products that give off electronic radiation, and for regulating tobacco products.
SOURCE U.S. Food and Drug Administration
Filed under: Cushing's, pituitary, Treatments | Tagged: adrenal insufficiency, Adrenocorticotropin, Cushing's Disease, edema, fatigue, headache, Isturisa, nausea, Osilodrostat, surgery, vomiting | Leave a comment »
Each and every day since 1987, I tell anyone who will listen about Cushing’s. I pass out a LOT Cushing’s business cards. My husband also passes out cards and brochures.
Adding to websites, blogs and more which I have maintained continuously since 2000 – at mostly my own expense.
Posting on the Cushing’s Help message boards about Rare Disease Day.
Tweeting/retweeting info about Cushing’s and Rare Disease Day today.
Adding info to one of my blogs about Cushing’s and Rare Disease Day.
Adding new and Golden Oldies bios to another blog, again most every week.
Thinking about getting the next Cushing’s Awareness Blogging Challenge set up for April…and will anyone else participate?
And updating https://www.facebook.com/CushingsInfo with a bunch of info today (and every day!)
~~~
Today is Rare Disease Day.
I had Cushing’s Disease due to a pituitary tumor. I was told to diet, told to take antidepressants and told that it was all my fault that I was so fat. My pituitary surgery in 1987 was a “success” but I still deal with the aftereffects of Cushing’s and of the surgery itself.
I also had another Rare Disease – Kidney Cancer, rare in younger, non-smoking women.
And then, there’s the secondary adrenal insufficiency…and growth hormone deficiency…
If you’re interested, you can read my bio here: https://cushingsbios.com/2018/10/28/maryo-pituitary-bio/
What are YOU doing for Rare Disease Day?
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Approximately 20% of a cohort of adults with Cushing’s syndrome experienced at least one thrombotic event after undergoing pituitary or adrenal surgery, with the highest risk observed for those undergoing bilateral adrenalectomy, according to findings from a retrospective analysis published in the Journal of the Endocrine Society.
“We have previously showed in a recent meta-analysis that Cushing’s syndrome is associated with significantly increased venous thromboembolic events odds vs. the general population, though the risk is lower than in patients undergoing major orthopedic surgery,” Maria Fleseriu, MD, FACE, professor of neurological surgery and professor of medicine in the division of endocrinology, diabetes and clinical nutrition in the School of Medicine at Oregon Health & Science University and director of the OHSU Northwest Pituitary Center, told Healio. “However, patients undergoing many types of orthopedic surgeries have scheduled thromboprophylaxis, especially postsurgery, which is not the standard of care in patients with Cushing’s syndrome. In this study, we wanted to look in more detail at the rates of all thrombotic events, both arterial and venous, in patients at our specialized pituitary center over more than a decade.”
In a retrospective, longitudinal study, Fleseriu and colleagues analyzed data from 208 individuals with Cushing’s syndrome undergoing surgical (pituitary, unilateral and bilateral adrenalectomy) and medical treatment at a single center (79.3% women; mean age at presentation, 45 years; mean BMI, 33.9 kg/m²; 41.8% with diabetes). Individuals with severe illness and immediate mortality were excluded. Thromboembolic events (myocardial infarction, deep venous thrombosis [DVT], and pulmonary embolism or stroke) were recorded at any point up until last patient follow-up. Researchers assessed all patients who received anticoagulation in the immediate postoperative period and up to 3 months after surgery, recording doses and complications for anticoagulation.
Within the cohort, 39 patients (18.2%) experienced at least one thromboembolic event (56 total events; 52% venous), such as extremity DVT (32%), cerebrovascular accident (27%), MI (21%), and pulmonary embolism (14%). Of those who experienced a thromboembolic event, 40.5% occurred within 60 days of surgery.
Researchers found that 14 of 36 patients who underwent bilateral adrenalectomy experienced a thromboembolic event, for an OR of 3.74 (95% CI, 1.69-8.27). Baseline 24-hour urinary free cortisol levels did not differ for patients with or without thromboembolic event after bilateral adrenalectomy.
“Despite following these patients over time, results almost surprised us,” said Fleseriu, also an Endocrine Today Editorial Board Member. “The risk of thromboembolic events in patients with Cushing’s syndrome was higher than we expected, approximately 20%. Many patients had more than one event, with higher risk at 30 to 60 days postoperatively. Use of a peripherally inserted central catheter line clearly increased risk of upper extremity DVT.”
Among 197 patients who underwent surgery, 50 (25.38%) received anticoagulation after surgery with 2% experiencing bleeding complications.
“We clearly need to understand more about what happens in patients with Cushing’s syndrome for all comorbidities, but especially thrombosis, and find the factors that predict higher risk and use anticoagulation in those patients,” Fleseriu said. “We have shown that among patients who had anticoagulation, risks were minimal. We also have to think more about timelines for these thromboembolic events and the duration of anticoagulation, and probably to expand it up to 30 to 60 days postoperatively if there are no contraindications, especially for patients undergoing bilateral adrenalectomy.”
Fleseriu cautioned that the findings do not necessarily suggest that every individual with Cushing’s syndrome needs anticoagulation therapy, as the study was retrospective. Additionally, sex, age, BMI, smoking status, estrogen or testosterone supplementation, diabetes and hypertension — all known factors for increased thrombosis risk among the general population — were not found to significantly increase the risk for developing a thromboembolic event, Fleseriu said.
“As significantly more patients have exogenous Cushing’s syndrome than endogenous Cushing’s syndrome and many of these patients undergo surgeries, we hope that our study increased awareness regarding thromboembolic risks and the need to balance advantages of thromboprophylaxis with risk of bleeding,” Fleseriu said. – by Regina Schaffer
For more information:
Maria Fleseriu, MD, FACE, can be reached at fleseriu@ohsu.edu.
Disclosure: Fleseriu reports she has received research funding paid to her institution from Novartis and Strongbridge and has received consultant fees from Novartis and Strongbridge.
Filed under: adrenal, Cushing's, pituitary, Treatments | Tagged: adrenal surgery, bilateral adrenalectomy, BLA, Cushing's Syndrome, deep venous thrombosis, Dr. Maria Fleseriu, DVT, pituitary surgery, surgery | Leave a comment »
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