Wednesday 20 August 2014

FDA approves new drug Cerdelga (eliglustat) to treat a form of Gaucher disease


August 19, 2014

Release

The U.S. Food and Drug Administration today approved Cerdelga (eliglustat) for the long-term treatment of adult patients with the Type 1 form of Gaucher disease, a rare genetic disorder.
Gaucher disease occurs in people who do not produce enough of an enzyme called glucocerebrosidase. The enzyme deficiency causes fatty materials to collect in the spleen, liver and bone marrow. The major signs of Gaucher disease include liver and spleen enlargement, low red blood cell counts (anemia), low blood platelet counts and bone problems.
Cerdelga is a hard gelatin capsule containing eliglustat that is taken orally. In patients with Gaucher disease Type 1, the drug slows down the production of the fatty materials by inhibiting the metabolic process that forms them. Type 1 Gaucher disease is estimated to affect about 6,000 people in the United States.
“Today’s approval offers another important treatment option for patients with Type 1 Gaucher disease,” said Amy G. Egan, M.D., M.P.H., deputy director of the Office of Drug Evaluation III in FDA’s Center for Drug Evaluation and Research. “In addition, Cerdelga received orphan drug designation from the FDA, reflecting the agency’s focus and commitment to the development of treatments for rare diseases.”
The safety and effectiveness of Cerdelga were evaluated in two clinical trials with 199 participants with Type 1 Gaucher disease.
In one randomized, double-blind, placebo-controlled, multicenter clinical trial the safety and effectiveness of Cerdelga were evaluated in 40 participants with Type 1 Gaucher’s disease who had not previously received enzyme replacement therapy. Subjects received the drug at a starting dose of 42 mg two times a day, with most receiving a dose of 84 mg two times a day after four weeks. Study participants continued the drug for nine months.
Compared to placebo, treatment with Cerdelga resulted in a greater reduction in spleen volume from baseline to the end of the study (by the 39th week), the trial’s primary endpoint. Cerdelga also resulted in greater improvement in liver volume, blood platelet count, and red blood cell (hemoglobin) level, compared to placebo.
The other trial sought to determine the safety and effectiveness of Cerdelga compared to enzyme replacement therapy in 159 participants with Type 1 Gaucher disease previously treated and stabilized on enzyme replacement therapy. Subjects in the trial received either the enzyme replacement therapy drug imiglucerase or Cerdelga. The trial demonstrated that treatment with Cerdelga resulted in similar stabilization of hemoglobin level, platelet count and spleen and liver volume as imiglucerase.
The most commonly observed side effects in the Cerdelga clinical trials were fatigue, headache, nausea, diarrhea, back pain, pain in extremities, and upper abdominal pain.
Cerdelga is manufactured by Cambridge, Massachusetts-based Genzyme.

















































read synthesis at
http://newdrugapprovals.org/2013/12/14/the-us-food-and-drug-administration-fda-has-granted-a-six-month-priority-review-designation-to-genzymes-new-drug-application-nda-for-cerdelga-eliglustat/

Tuesday 19 August 2014

Dissolution properties, solid-state transformation and polymorphic crystallization: progesterone case study

Progesteron.svg
 Progesterone is a natural steroid hormone and a poor soluble drug which presents two polymorphs (forms 1 and 2). Different methods to obtain form 2 were tested and a complete solid-state characterization of both polymorphs (forms 1 and 2) was conducted. X-ray powder diffraction, hot stage microscopy, Fourier transform infrared, dispersive Raman, 13C solid-state nuclear magnetic resonance spectroscopy, thermal analysis, scanning electron microscopy techniques and intrinsic dissolution rates (IDR) were applied to investigate physical–chemical and dissolution properties of these two polymorphs. Form 2 was obtained from diluted solutions and from melting after cooling at room temperature. Form 1 was obtained from concentrated solutions and, a mixture of both polymorphs was crystallized from intermediate solutions. The crystal habit was not a distinctive characteristic of each polymorph. The effect of mechanical stress was evaluated in the metastable polymorph (form 2). We observed that grinding form 2 produced seeds of form 1 that induced the transformation of form 2 into form 1 at high temperature. The polymorphic quantification from XRD patterns of ground samples were carried out by the Rietveld method. After grinding and at room temperature conditions (∼25 °C), it was observed the transformation of 17% of form 2 into form 1 in 10 days.


Read More: http://informahealthcare.com/doi/abs/10.3109/10837450.2013.829096



Drug-drug co-crystals.

Figure 1
Representation of drug-drug co-crystal and combination drug.
 
 
 
 
Active pharmaceutical ingredients (APIs) are most conveniently developed and delivered orally as solid dosage forms that contain a defined crystalline form of an API. Co-crystal is a crystalline entity formed by two different or more molecular entities where the intermolecular interactions are weak forces like hydrogen bonding and π-π stacking. Co-crystals are an enabling technology that is used in new or existing drug delivery systems by majority of pharmaceutical companies in formulation and drug development.
 
 read all at
 

Saturday 16 August 2014

Traditional medicine-inspired approaches to drug discovery: can Ayurveda show the way forward?

Traditional medicine-inspired approaches to drug discovery: can Ayurveda show the way forward?

B Patwardhan, RA Mashelkar - Drug discovery today, 2009 - Elsevier
Drug discovery strategies based on natural products and traditional medicines are re-
emerging as attractive options. We suggest that drug discovery and development need not
always be confined to new molecular entities. Rationally designed, carefully standardized, ...

download a pdf file

Drug discovery strategies based on natural products and traditional medicines are re-emerging as attractive options. We suggest that drug discovery and development need not always be confined to new molecular entities. Rationally designed, carefully standardized, synergistic traditional herbal formulations and botanical drug products with robust scientific evidence can also be alternatives. A reverse pharmacology approach, inspired by traditional medicine and Ayurveda, can offer a smart strategy for new drug candidates to facilitate discovery process and also for the development of rational synergistic botanical formulations.








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http://repository.ias.ac.in/22146/1/342.pdf  pdf for noncommercial use
http://www.sciencedirect.com/science/article/pii/S1359644609001767



Tuesday 5 August 2014

Scientists have identified a new way to stop malaria parasites from multiplying, an important step in developing new treatments for the disease, which killed an estimated 1.2 million people in 2010.
The activity of an enzyme called NMT is essential for the survival and viability of the most common malaria parasite.

Jammed Protein Signal Forces Cancer Cells to Devour Themselves

Under stress from chemotherapy or radiation, some cancer cells dodge death by consuming a bit of themselves, allowing them to essentially sleep through treatment and ........read at

Sunday 3 August 2014

Top 10 Home Remedies For Arthritis


Top 10 Home Remedies For Arthritis


What is Arthritis?

Arthritis is an autoimmune disorder that causes inflammation of the joints. Areas like the jaw, elbows, knees and hips are most vulnerable. In the early stages, you may complain of pain from time to time. But being physically active gradually becomes more challenging as arthritis progresses – and as the condition worsens some find themselves home bound. In America, Arthritis is the number 1 cause of disability.

read at





http://www.herbs-info.com/blog/top-10-home-remedies-for-arthritis/