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05/02/2016

Utilization of Haloperidol in the Skilled Nursing Facility for Symptom Management at End of Life

Jim Joyner, Pharm.D., C.G.P.

CMS has established very restrictive regulatory criteria for the use of Haloperidol and other psychotropic drugs for patients who reside in the SNFs. These criteria include restrictions on indications for use, duration of therapy, daily dose limits, monitoring, and more. The information is spelled out in F-329 Unnecessary Drugs (CMS Skilled Nursing Facility Regulations). The regulations are intended for nursing home patients who are NOT being treated under “end of life care” and this is clearly spelled out in F-329.

F-329 Unnecessary Drugs contains specific language that provides an exception to the specific criteria for antipsychotic drug use (including Haloperidol) for hospice patients in the SNF. Subsection 483.25 (l) in this F-tag contains an extensive table (Table 1) which lists examples of numerous medications for which CMS is concerned about, including all antipsychotic drugs. At the end of this extensive table is a section titled, simply, “Exception”. Here is the exact language:

 

Exception: When antipsychotic medications are used for behavioral disturbances related to Tourette’s disorder, or for non-psychiatric indications such as movement disorders associated with Huntington’s disease, hiccups, nausea and vomiting associated with cancer or chemotherapy, or adjunctive therapy at end of life.

 

This means that when Haloperidol (or any antipsychotic drug) is being used for managing symptoms at end-of-life in the SNF, the regulatory criteria on max dosage, duration of therapy or related issues do not apply. Haloperidol is used extensively in hospice and palliative care for management of terminal delirium, severe agitation of end-stage dementia, and for management of nausea – vomiting. It is highly effective for these indications and generally well tolerated in many hospice patients, however in many cases, doses greater than 2 mg per day are required and are clinically appropriate. Haloperidol is recommended as a drug of choice for terminal delirium by several well respected palliative care experts and organizations (references available upon request if you need them).

Make sure that the patient’s health record clearly indicates that the patient is under hospice for ‘end of life’ care.




03/24/2016

Diabetic Medications Updates

Jennifer Chen, PharmD, CGP

SGLT2 inhibitors

Last year, the FDA released a drug safety communication, which cautioned the use of SGLT2 inhibitors, due to case reports of ketoacidosis in patients who were being treated with these medications. Recently, the FDA has updated the labels for SGLT2 inhibitors to include the risks for both ketoacidosis and serious urinary tract infections. Patients in these case reports were found to start with urinary tract infection, which then progressed to potentially fatal urosepsis and pyelonephritis that required hospitalization or dialysis to treat kidney failure. Patients who continue to take these medications should be taught to recognize the symptoms of ketoacidosis, which include nausea, vomiting, abdominal pain, fatigue and difficulty breathing. Ketoacidosis can occur even if their blood glucose is not excessively high. Patients with suspected ketoacidosis should stop taking the SGLT2 inhibitor and receive treatment promptly. Clinicians are encouraged to report any side effects to the FDA MedWatch program. 

 

SGLT2 inhibitor is a class of diabetic medication that works by stopping glucose from being reabsorbed into the blood. Medications in this class include Invokana (canagliflozin), Farxiga (dapagliflozin), and Jardiance (empagliflozin).

 

Rosiglitazone

The FDA imposed the Risk Evaluation and Mitigation Strategy (REMS) for rosiglitazone-containing type 2 diabetic medications in 2010 due the concern of possible increased cardiovascular risk. It required healthcare providers to obtain a special certification in order to prescribe rosiglitazone and patients receiving rosiglitazone must be enrolled in the REMS program. In 2013, the FDA lifted the restrictions for the prescribing and use of rosiglitazone based on the data from RECORD (Rosiglitazone Evaluated for Cardiovascular Outcomes and Regulation of Glycemia in Diabetes) trial. The RECORD trial demonstrated no elevated cardiovascular risk. Recently, the FDA has lifted the entire REMS requirements for rosiglitazone-containing medications, which includes Avandia (rosiglitazone), Avandamet (rosiglitazone-metformin) and Avandaryl (rosiglitazone-glimepiride) on the basis of post-marketing data and the RECORD trial. However, most of these medications have either been removed from the market (Avandamet and Avandaryl) or are rarely used in patients (Avandia).

Basaglar

The FDA gave final approval in December 2015 to Basaglar (a copycat version of insulin glargine). Basaglar was not approved as a “biosimilar” product although it was demonstrated to be similar enough to another insulin glargine on the market (Lantus) regarding its effectiveness and safety. It is administered subcutaneously with the manufacturer’s KwikPen injector once daily at any time of the day. Being as the first “follow-on” insulin glargine product, Basaglar received much attention for potentially lower costs. Basaglar has already launched in the UK under the brand name of Abasaglar and is priced 15% lower than Lantus (listed price of £35.28 for Abasaglar and £41.50 for Lantus according to UK Medicines Information). Pricing for Basaglar in the US is unknown at this time and the drug will not be available until after December this year.

 

References

1. FDA. FDA Drug Safety Communication: FDA revises labels of SGLT2 inhibitors for diabetes to include warnings about too much acid in the blood and serious urinary tract infections. http://www.fda.gov/Drugs/DrugSafety/ucm475463.htm Accessed on January 10, 2016.

2. FDA. Rosiglitazone-containing Diabetes Medicines: Drug Safety Communication - FDA Eliminates the Risk Evaluation and Mitigation Strategy (REMS). http://www.fda.gov/Safety/MedWatch/SafetyInformation/SafetyAlertsforHumanMedicalProducts/ucm477601.htm Accessed on December 28, 2015.

3. FDA. FDA approves Basaglar, the first “follow-on” insulin glargine product to treat diabetes. http://www.fda.gov/NewsEvents/Newsroom/PressAnnouncements/ucm477734.htm Accessed on December 28, 2015. 




02/11/2016

New Medicare Drug Spending Dashboard Published

Esther Liu, PharmD, MSIA, CGP

The Center for Medicare and Medicaid Services (CMS) released a new online dashboard that contains some interesting analyses of Medicare Part D drug utilization. The new dashboard presents drug data collected from Medicare Part B and Part D providers from 2010 to 2014.  In an analysis of the top 15 drugs by total annual cost for Medicare Part D 2014, 10 out of the top 15 high cost medications are drugs that commonly show up on newly admitted hospice patients’ medication profiles. The remaining 5 medications are all specialty medications used for chemotherapy, immunotherapy or hepatitis C treatment. These 5 medications are curative in nature and are not typically encountered by hospice providers.

The 10 high cost drugs identified by the analysis are Nexium, Crestor, Abilify, Advair, Spiriva, Lantus, Januvia, Duloxetine, Lyrica, and Namenda.  

Outcome Resources also targets these medications for our hospice providers in patient medication reviews and monthly drug utilization reviews. Many of these can be switched to a more cost-effective alternative or safely discontinued at the end of life. Below are the common recommendations provided by Outcome Resources clinicians to manage hospice patients who are on the drugs listed above:

 

  • Nexium is a proton pump inhibitor (PPI) which has recently become generic in early 2015. The generic version, esomeprazole, is also available over-the-counter at a much lower cost than the branded version. Omeprazole is another cost-effective alternative in the same class of PPIs that has been generically available for a long time.

  • Crestor is a statin for hyperlipidemia. There was a study done that supports the discontinuation of statins at the end of life. It has also been shown that the discontinuation of statins can improve the quality of life for terminal patients. The following is the link to the abstract of the study <http://abstracts.asco.org/144/AbstView_144_135132.html>.

  • Abilify is a branded atypical antipsychotic. It is not recommended to switch an antipsychotic if the patient has been stable on this medication to treat certain existing mental/mooddisorders (such as schizophrenia or bipolar disorder)However, if the patient was newly prescribed Abilify for terminal agitation, haloperidol would be the most cost-effective alternative in the hospice setting.

  • Advair and Spiriva are both inhaled respiratory medications. If patients have a terminal lung conditions, they often fail to have enough positive force to inhale medication contents from these handheld devices. These medications are often switched to the nebulized formulation for better efficacy when patients have significant lung dysfunction.

  • Lantus and Januvia are used for diabetes management. Tight blood glucose control only provides long term survival benefit, so it is no longer recommended in terminal patients. The risks of hypoglycemia and the potential side effects from the diabetes medication at end of life often outweigh the benefit, thus they should be considered for discontinuation for terminal patients.

  • Duloxetine and Lyrica are both commonly used for treating neuropathic pain. The cost effective alternative for these is gabapentin. Methadone is also a very cost effective option to manage neuropathic pain and other types of pain, particularly in patients who also require routine narcotics for pain or dyspnea.

  • Namenda is used to improve memory, awareness, and the ability to perform daily functions in Alzheimer’s patients. It has NOT been demonstrated to provide any benefit in end stage dementia (FAST level 7 or greater).   The potential adverse effects of Namenda, such as GI disturbance, are likely to outweigh any potential beneficial effects, so it is often recommended to discontinue these medications for patient with end stage Alzheimer’s disease.

If you are interested to learn more about the Medicare Drug Spending Dashboard 2014, the direct link is: <https://www.cms.gov/Research-Statistics-Data-and-Systems/Statistics-Trends-and-Reports/Dashboard/Medicare-Drug-Spending/Drug_Spending_Dashboard.html>

 

More information:
https://www.cms.gov/Research-Statistics-Data-and-Systems/Statistics-Trends-and-Reports/Dashboard/Medicare-Drug-Spending/Drug_Spending_Dashboard.html


12/11/2015

Combination use of Proton Pump Inhibitors and H2 blockers - Is this appropriate?

Jennifer Chen, PharmD

Proton pump inhibitors (PPIs) and histamine H2 antagonists (H2 blockers) are the most common medications prescribed for the treatment of gastroesophageal reflux disease (GERD) or peptic ulcer disease (PUD). The treatment usually begins with antacids or over-the-counter H2 blockers for mild symptoms. Then steps up to PPIs or higher dose of H2 blockers for moderate to severe symptoms. Occasionally, PPI and H2 blocker may be combined to treat certain patients. This article will discuss the appropriateness of combination therapy and its associated risk.

Hospice patients are predisposed to PUD due to many risk factors including the age-related change in gastric mucosal defense, serious illness and long-term use of NSAID. The majority of patients are managed clinically with a once daily dose of a PPI. The unofficial use of twice daily dosing of PPI or the addition of a nighttime H2 blocker to the daytime PPI therapy may be required for optimal control in a subset of patients such as those with Barrett’s esophagus or extra-esophageal disease (1).

PPIs and H2 blockers have overlapping mechanisms of actions, which ultimately suppress gastric acid secretion, but at different stages of production. When used together, the extensive acid suppression therapy may decrease the absorption of certain nutrients (i.e. vitamin B12, iron and calcium), which are dependent upon an acidic environment to be absorbed in the stomach. There is also a significant risk of hip fractures with long-term PPI treatment. This risk theoretically may be further increased with the combination therapy due to impaired calcium absorption. Combination therapy may also increase the risk of gastrointestinal infections. A recent meta-analysis evaluated Clostridium difficle (C.diff) infections in patients receiving PPIs and found an association between PPI use and an increased risk of C diff (2). H2 blockers have been showed to carry a lower risk for gastrointestinal infection compared to PPIs. However, when both PPIs and H2 blockers are used together, the further reduction of gastric acid may allow for bacteria to multiply in the digestive system and the risk of infection may be increased.

In general, long-term combination therapy does not offer any additional benefit for the management of GERD and may only be appropriate in a particular subset of patients (i.e. Barrett’s esophagus or extra-esophageal disease). Practitioners are encouraged to re-evaluate patient’s condition and consider discontinuation if patient no longer exhibits symptoms or has no indication for continued use. Since PPIs provide superior acid suppression, healing rates and symptom relief compared to H2 blockers, our recommendation is to discontinue H2 blockers over PPIs. If it is determined PPI is no longer indicated for a patient, it should be tapered to avoid rebound acid reflux. For patients who require long-term PPI therapy, the lowest effective dose should be considered.

  1. Katz PO, Tutuian R. Histamine Receptor Antagonists, Proton Pump Inhibitors and their combination in the treatment of gastroesophageal reflux disease. Best Pract & Res Clin Gastroenterol 2001;15(3):371-84.
  2. Kwok CS, Arthur AK, Anibueze CI, Singh S, Cavallazzi R, Loke YK. Risk of Clostridium difficile infection with acid suppressing drugs and antibiotics: meta-analysis. The American journal of gastroenterology 2012 Jul;107(7):1011–9. 

 

 




11/11/2015

Hospice Medication Alert: Drug Safety Update on Entacapone

Jennifer Chen, PharmD

Entacapone is a reversible and selective inhibitor of catechol-O-methyltransferase (COMT). By disrupting levodopa breakdown, the COMT inhibitors can potentiate the effect of levodopa for managing the motor symptoms of Parkinson’s disease. Therefore, entacapone is used as adjunctive treatments in patients who are experiencing “wearing off” or other motor complications during treatment with carbidopa-levodopa.) It is available alone as Comtan® or in a fixed-dose combination with carbidopa-levodopa as Stalevo®.

In August 2010, FDA alerted patients and health care professionals about the increased risk of cardiovascular events and death with the use of Stalevo. The possible safety issue was observed in a clinical trial called Stalevo Reduction in Dyskinesia Evaluation in Parkinson’s disease (STRIDE-PD) and in meta-analysis involving 15 clinical trials comparing Stalevo with carbidopa-levodopa. Since carbidopa-levodopa has been used extensively and has not been associated with cardiovascular risk, the FDA was concerned that entacapone might have been responsible for the increased risk. It was difficult to draw conclusions from these clinical trials because they were not designed to evaluate entacapone’s cardiovascular safety.

Until recently, two studies were examined to understand the significance of cardiovascular risk with entacapone. One was a retrospective cohort study using data from an electronic commercial insurance database and found the risk for myocardial infarction was not significantly increased in patients 18 to 64 years old with Parkinson’s disease treated with entacapone compared to the control group(1). The other study assessed the risk of myocardial infarction, stroke or death in Medicare patients at least 65 years old with Parkinson’s disease and the result did not support an associate between entacapone use and increased cardiovascular risks(2).

Therefore, on October 26, 2015, the FDA announced that entacapone does not carry an increased risk of cardiovascular events based on recent studies. However, patients and health care professionals are still encouraged to report side effects with Comtan or Stalevo to the FDA.

References

  1. Final Study Report, “The risk of incident myocardial infarction in Parkinson’s disease patients with add-on entacapone to levodopa/DDCI compared to other add-on Parkinson’s disease therapy without entacapone”. A retrospective cohort study using data from MarketScanTM; February 2014.
  2. Graham DJ, Williams JR, Hsueh YH, Calia K, Levenson M, Pinheiro SP, MaCurdy TE, Shih D, Worrall C, Kelman JA. Cardiovascular and mortality risks in Parkinson’s disease patients treated with entacapone. Mov Disord 2013;28:490-497.

 




11/11/2015

Hospice Pharmacy Solutions completes merger with Outcome Resources

We want to share some exciting news with you regarding Outcome Resources!

On October 30, Hospice Pharmacy Solutions merged Outcome Resources into its operation. The merger is very beneficial for our clients as we will be able to offer you additional unique and innovative solutions geared specifically to the hospice industry.

The business will be headquartered in Dallas, which is a central location, and operate as Hospice Pharmacy Solutions, LLC. In approximately six months, we will retire the Outcome Resources name.

We want to reassure you that while the name is changing, the exceptional service you have come to expect from Outcome Resources remains the same. This merger gives us the ability to enhance our programs and provide hospices valuable resources to better serve their patients. 

You can find more details in this press release, including the new leadership structure. 

We’d like to once again thank you for your services to patients and their families at a most vulnerable time in their lives. The work you do is honorable, and we are proud to support your mission. 

 

More information:
http://www.prnewswire.com/news-releases/hospice-pharmacy-solutions-completes-merger-with-outcome-resources-300176631.html


10/23/2015

FDA Approves Praxbind (idarucizumab), the First Reversal Agent for Pradaxa (dabigatran etexilate)

Stephanie Cheng, PharmD, MPH

The FDA granted accelerated approval of Praxbind (idarucizumab) on October 16, 2015 for use as a specific reversal agent of the anticoagulant effects of Pradaxa (dabigatran etexilate) during emergency surgery/urgent procedures or in episodes of life-threatening or uncontrolled bleeding. This is the first drug to be approved for this indication.  Praxbind is currently not available on the market yet; however, the manufacturer stated that it will be available from major U.S. hospital pharmacy distributors as quickly as possible.

 

Pradaxa (dabigatran) had been given FDA approval in 2010 as the first direct thrombin inhibitor for the indications of (1) to reduce the risk of stroke and systemic embolism in patients with non-valvular atrial fibrillation (2) for the treatment of deep venous thrombosis (DVT) and pulmonary embolism (PE) in patients who have been treated with a parenteral anticoagulant for 5-10 days and (3) to reduce the risk of recurrence of DVT and PE in patients who have been previously treated.  Unlike Coumadin (warfarin), Pradaxa does not require extensive lab monitoring and is given as 75mg BID or 150mg BID. However, there had been no antidotes to its anticoagulant affect until this point.

 

Praxbind (idarucizumab) is a monoclonal antibody fragment that is to be given IV only at a recommended dose of 5g, provided as two separate 2.5g/50mL vials to be given consecutively. Praxbind specifically binds to Pradaxa and does not interfere with the anticoagulant effects of other anticoagulants or the coagulation cascade.

 

Under the accelerated approval process, the FDA approves medications for serious conditions that fill an unmet medical need based on an intermediate clinical endpoint in a clinical trial that is reasonably likely to predict a clinical benefit to patients. This allows patients to gain earlier access to promising new medications, but the company is still required to submit additional clinical information after approval to support the clinical benefits of the drug.

 

Due to the accelerated approval process, Praxbind has only been studied in healthy patients (i.e. patient who do not require an anticoagulant) in 3 clinical trials of a total of 224 subjects. Therefore, the safety and risk profile for patients who do require an anticoagulant has not been assessed.  Additionally, because the clinical trials were conducted under widely varying conditions, adverse reaction rates observed cannot be directly compared to other drugs and the rates may not reflect those observed in clinical practice.

 

Currently, there are no contraindications for Praxbind.  However there are warnings and precautions in regards to (1) increased thromboembolic risks to the patient’s underlying disease due to reversal of dabigatran’s anticoagulant effects (2) re-elevation of coagulation markers (i.e. activated partial thromboplastin time (aPTT) or ecarin clotting time (ECT)) (3) Hypersensitivity reaction and (4) risk of serious adverse reactions in patients with hereditary fructose intolerance due to sorbitol excipient.

 

The role of Praxbind in the hospice setting will be limited, due to the limited use of Pradaxa and expense.  Anticoagulant use in generally is not recommended in hospice patients due to the risk of bleeding, especially in the unpredictable declining status of hospice patients.  Exception to this is if the patient has a high level of function, relatively longer prognosis for life and a reasonable quality of life, who is deemed to be at high-risk for thrombotic events.  However, Praxbind does provide a safety net for life-threatening or uncontrolled bleeding in patients using Pradaxa in an otherwise helpless situation, as no other antidote for Pradaxa had been available up until this point.

 

References

  1. Praxbind® [package insert]. Ridgefield, CT: Boehringer Ingelheim Pharmaceuticals, Inc; 2015.
  2. Pradaxa® [package insert]. Ridgefield, CT: Boehringer Ingelheim Pharmaceuticals, Inc; 2015.
  3. FDA. FDA approves Praxabind, the first reversal agent for the anticoagulant Pradaxa.  <http://www.fda.gov/NewsEvents/Newsroom/PressAnnouncements/ucm467300.htm> Accessed October 20, 2015.

More information:
http://www.fda.gov/NewsEvents/Newsroom/PressAnnouncements/ucm467300.htm


10/01/2015

Hospice Medication Alert: New Parkinson's Disease Medication

Jim Joyner, PharmD, CGP

Rytary is the brand name for a new formulation of “extended-release” carbidopa-levodopa that has recently become available in the U.S. in capsule form.  It is indicated for the treatment of mild to moderate to severe Parkinson’s disease.  Clinical trials with this new formulation were conducted comparing Rytary with immediate-release carbidopa-levodopa tablets.  The study results indicated significant improvements in a patient’s ability to move and perform activities of daily living, as well as experiencing significantly more “on” time and less “off” time without dyskinesia.   There are currently no published studies comparing Rytary with the “controlled-release” carbidopa-levodopa tablet (originally Sinemet CR, although generics are now available).  The Sinemet CR tablet is formulated as an erodible polymer matrix that slows the release of medication from the tablet. The Rytary capsule contains both immediate-release and extended-release beads.  Clinically significant differences in patient response to these two “extended-release” products should be anticipated because of the difference in formulation.   

“Controlled or “extended” release carbidopa-levodopa preparations have been formulated in attempts to achieve a steadier climb to peak plasma concentrations that are less extreme and provide greater duration of anti-Parkinson effects.   Both Rytary and the older Sinemet CR tablet are formulated to achieve this objective, but use different technology to control dissolution rates.  Both dosage forms have been shown to provide more “on” time, less “off” time, and less dyskinesia for Parkinson’s patients than the immediate-release tablets.   It remains to be seen how much of an advantage, if any, the new extended-release capsule (Rytary) has over the older extended-release tablet (Sinemet CR).  

Rytary is not a generic equivalent to either the immediate release, nor the controlled release carbidopa-levodopa.  The manufacturer provides a conversion table for guidance on converting from carbidopa-levodopa immediate release to Rytary.   

Available combination strengths of Rytary Extended Release Capsules are as follows:  23.75mg/95mg, 36.25mg/145mg, 48.75mg/195mg, and 61.25mg/245mg.  

The starting dose for Rytary in levodopa naïve patients is 23.75mg/95mg three times per day for 3 days. On day 4, the dose may be increased to 36.25mg/145mg three times daily.   Further dosage increases may be employed based upon patient response, up to a maximum recommended dose of 97.5mg/390mg three times a day.   Capsules should be swallowed whole and should not be chewed or crushed.   For patients that cannot swallow capsules whole, Rytary capsules may be opened and the contents can be sprinkled on to a small amount of applesauce for immediate consumption.

Most common adverse effects noted with Rytary were nausea and headache (similar to immediate release carbidopa-levodopa in the comparison trial).  

Rytary may offer a significant advantage in Parkinson’s patients who are not able to achieve adequate periods of “on” time during the waking hours, or those who exhibit troublesome dyskinesia with carbidopa-levodopa immediate-release tablets.   There is currently no data available to demonstrate any clinical advantage of Rytary over the carbidopa-levodopa CR (controlled release) tablets.  From a practical standpoint, Rytary does have an advantage over the “CR tablets” for patients that cannot swallow whole pills, since the carbidopa-levodopa tablets should be swallowed whole and should not be chewed or crushed.   As with most new products, Rytary is expensive with a mid-range dosage expected to cost the hospice between $300 - $400 per month.  

 

More information:
http://rytaryhcp.com/professional-resources/dosing-charts


09/10/2015

National Prescription Drug Take-Back Initiative

Jennifer Chen, PharmD

DEA has announced that the 10th annual National Prescription Drug Take-Back will take place on September 26th from 10am to 2pm local time in every state except Pennsylvania and Delaware, where it will take place on September 12th. This is a great opportunity for the public to dispose unwanted and expired medications. These types of medications in the house are a leading cause of accidental poisoning. In addition, inappropriate disposable of medications may also lead to potential safety and health hazards. Check your own medicine cabinets and advise your patients, friends and families. Help get those drugs out of homes and reduce the threat of prescription drug abuse.

Click here to find a DEA collection site near you!

What should you do if you miss this event?

Another option for long-term care facilities to dispose of unwanted medications is to transfer those medicines to collectors registered with the DEA. These DEA-authorized collectors safely and securely collect and dispose of pharmaceuticals containing controlled substances and other medicines. In your community, authorized collection sites may be retail pharmacies or hospital pharmacies. These sites may also offer mail-back programs or collection receptacles (or “drop-boxes”) to assist the public in safely disposing of medications. Click here to locate a DEA-authorized collector in your area.

If there is no take-back program or DEA-authorized collectors available in your area, you may also dispose of medicines in household trash or flush certain medicines down the toilet (be sure to know the law in your state before recommending medications to be flushed; for example, flushing medications down the toilet is not recommended in California). The FDA provides an updated list on the drugs recommended for disposal by flushing (last updated in February 2015). For more information on proper drug disposal, please review our previous blog posts on the topic of proper drug disposal.




09/04/2015

New Hospice Medication Alert: Another Anti-Clotting Drug Savaysa (edoxaban)

Esther Liu, PharmD, MSIA, CGP

The U.S. Food and Drug Administration (FDA) approved another anti-clotting drug Savaysa (edoxaban) in January 2015 for the treatment of deep vein thrombosis (DVT) and pulmonary embolism (PE). This medication also has the FDA approved indication to reduce the risk of stroke and blood clots in patients with atrial fibrillation, but it is not recommended for patients with CrCl greater than 95ml/minutes due to its inferior efficacy in comparison to Coumadin (warfarin) at clinical trials.

This is the third oral factor Xa inhibitors approved by FDA as an anticoagulant to treat blood clots and prevent stroke risk in the last four years. The most common side effects for Savaysa observed in clinical trial participants were bleeding and anemia.(1) Just like the other FDA-approved anti-clotting drugs, bleeding, including life-threatening bleeding, is the most serious risk with Savaysa. There is no treatment that has been proven to reverse the anticoagulant effect of Savaysa like the antidote we have for Coumadin.

Factor Xa inhibitors, like Savaysa, are likely to be reserved as a second line therapy due to its lack of antidote to the anticoagulant effect and they are cost-prohibitive compared to Coumadin. When you encounter a patient with one of the new anticoagulants in the hospice setting, it is important to ask the following questions to ensure if the anticoagulation treatment is still suitable for your hospice patients:

1. Is the patient taking the medication for treatment or stroke prevention?

If the patient is taking the medication for stroke prevention in atrial fibrillation, the medication should be considered for discontinuation unless the patient has a high risk for clotting. Outcome Resources provides patient-directed letters to help hospice providers to communicate the rationale of discontinuing the anticoagulant at end of life care.

2. What is the risk vs. benefit of continuing the anticoagulation therapy? What is the likelihood of patient getting another blood clot? Did the patient have a recent clotting event even if the patient is using the medication for clotting prevention?

A study has suggested that anti-coagulants can reduce stroke risk by about 4% per year on average for ambulatory patients with atrial fibrillation.(2) Hospice patients are more likely to suffer from the side effects of bleeding at end of life than having a blood clot event. Therefore, the risks of anticoagulation treatment are greater than the benefits in this population and should be considered for discontinuation.

3. If the hospice patient has a high risk for clotting and has a reasonable functional level (Palliative Performance Scale >40%), why is the patient not able to take Coumadin (warfarin) versus the other anticoagulants?

Coumadin is the most cost-effective medication in the class of anticoagulants even after taking into account for the INR monitoring cost. It is the only oral medication in this class with an antidote for its anticoagulation effects, which makes it a safer option for patients with bleeding risk, especially in the hospice setting. The only drawback to using Coumadin is the requirement of routine INR monitoring on the anticoagulation effect while the newer agents do not. However, recent studies have suggested that routine INR monitoring improves patient adherence to the anticoagulant therapy, which leads to better outcomes from Coumadin in general.(3)   

If you have asked these three sets of questions above and the answers still suggested that the patient is a candidate to continue on an anticoagulation therapy, then you can consider some of the newer oral agents, like the factor Xa inhibitors. They are generally more cost-effective than the injectable anti-coagulants like Lovenox.

Here is the clinical pearl of using anticoagulants in hospice setting. 1) Consider discontinuation if possible. 2) If not, Coumadin remains as the gold standard to treat/prevent blood clots before other newer anticoagulants. 3) Reserve the injectable anticoagulants as the last resort as it is both invasive and expensive. 

View a Comparison Chart of Oral Anti-Coagulants

 

References

1. FDA approves anti-clotting drug Savaysa: http://www.fda.gov/NewsEvents/Newsroom/PressAnnouncements/ucm429523.htm . Accessed August 27, 2015.

2. Archives of Internal Medicine 1994; 54: 1449-1457.

3. Comparing the New Oral Anticoagulants. Pharmacist’s Letter. June 2014.

4. Anticoagulant Comparison Chart. North American Thrombosis Forum. www.natfonline.org. Accessed August 27, 2015

More information:
http://marketing.outcomeresources.com/acton/attachment/4185/f-0218/1/-/-/-/-/Comparison%20of%20Oral%20Anti-Coagulants.pdf


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