Calcitriol News and Research

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Calcitriol is a form of Vitamin D3 with three alcohol groups. It increases gastrointestinal calcium absorption, stimulates osteoclastic calcium resorption from bone, facilitates the effect parathyroid hormone (PTH) has on bone resorption, and increases renal tubular absorption of calcium. Production of calcitriol by the cells of the proximal tubule of the nephron in the kidney is stimulated by hypocalcemia and hypophosphatemia as well as parathyroid hormone.

Validus chooses Ranbaxy to market an authorized generic version of Rocaltrol in the US

Ranbaxy Pharmaceuticals Inc. (RPI), a wholly owned subsidiary of Ranbaxy Laboratories Limited (RLL), Gurgaon, India, announced an agreement with Validus Pharmaceuticals LLC (Validus) to market and distribute an authorized generic version of Rocaltrol(R) (calcitriol) in both softgel capsules and an oral liquid formulation. Overall market sales for calcitriol softgel capsules and oral liquid were $70 million (IMS - MAT: June 2009).

2 Sep 2009

Vitamin D may halt lung function decline in asthma and COPD

Vitamin D may slow the progressive decline in the ability to breathe that can occur in people with asthma as a result of human airway smooth muscle (HASM) proliferation, according to researchers at the University of Pennsylvania.

20 May 2009

Study helps clarify role of vitamin D in cancer therapy

A colon cancer cell isn't a lost cause. Vitamin D can tame the rogue cell by adjusting everything from its gene expression to its cytoskeleton.

17 Nov 2008

Calcitriol - active form of vitamin D - may protect us from radiation

Radiological health expert Daniel Hayes, Ph.D., of the New York City Department of Health and Mental Hygiene suggests that a form of vitamin D could be one of our body's main protections against damage from low levels of radiation.

8 Nov 2008

Vitamin D, "the heart tranquilizer"

Strong bones, a healthy immune system, protection against some types of cancer: Recent studies suggest there's yet another item for the expanding list of vitamin D benefits. Vitamin D, "the sunshine vitamin," keeps the heart, the body's long-distance runner, fit for life's demands.

11 Jun 2008

Vitamin D linked to reduced mortality rate in chronic kidney disease

For patients with moderate to severe chronic kidney disease (CKD), treatment with activated vitamin D may reduce the risk of death by approximately one-fourth, suggests a study in the August Journal of the American Society of Nephrology.

7 May 2008

Discovery of protein that helps predict prostate cancer survival

An Oregon Health & Science University Cancer Institute researcher has identified a protein that is a strong indicator of survival for men with advanced prostate cancer. The C-reactive protein, also known as CRP, is a special type of protein produced by the liver that is elevated in the presence of inflammation.

22 Apr 2008

Is there convincing biological or behavioral evidence linking vitamin D deficiency to brain dysfunction?

In a definitive critical review, scientists at Children's Hospital & Research Center Oakland ask whether there is convincing biological or behavioral evidence linking vitamin D deficiency to brain dysfunction.

21 Apr 2008

C-reactive protein identified as marker for prostate cancer survival

Oregon Health & Science University Cancer Institute researchers have identified a protein that is a strong indicator of survival for men with advanced prostate cancer.

3 Jun 2007

Vitamin D: sunshine, diet and supplements - cancer prevention and therapy

Vitamin D deficiency is common and cancer risk is higher among those individuals with low vitamin D levels, according to an analysis of research which will be presented at a symposium by Donald L.

17 Apr 2007

Advanced prostate cancer can be treated successfully with intermittent chemotherapy

Advanced prostate cancer can be treated successfully with intermittent chemotherapy, according to a study conducted by Oregon Health & Science University Cancer Institute scientists.

6 Jun 2006

Vitamin D sufficiency may be more important than high calcium intake for maintaining calcium metabolism

Calcium intake levels of more than 800 mg/day may be unnecessary for maintaining calcium metabolism if vitamin D status is adequate, according to a study in the November 9 issue of JAMA: The Journal of the American Medical Association.

10 Nov 2005

DN-101 may protect against major side effects of chemotherapy

Men with advanced prostate cancer who take an experimental, high-dose vitamin D pill with chemotherapy live about eight months longer than those receiving chemotherapy and placebo, according to a new study.

3 Nov 2005

Calcitriol - promising chemopreventive agent that may prevent prostate cancer

The active metabolite of vitamin D, calcitriol, and other vitamin D analogs are promising chemopreventive agents that may prevent prostate cancer, according to a study presented today at the American Association for Cancer Research's 4th annual Frontiers in Cancer Prevention Research meeting in Baltimore.

3 Nov 2005

Double whammy of vitamin D and anti-inflammatory zaps prostate cancer cells

Scientists from Stanford University say they have discovered that vitamin D, known as the "sunshine vitamin,"can limit the growth of prostate cancer cells when combined with non-steroidal anti-inflammatory drugs.

6 Sep 2005

Low doses of the active form of vitamin D and non-steroidal anti-inflammatory drugs form one-two punch against prostate cancer cells

Low doses of the active form of vitamin D and non-steroidal anti-inflammatory drugs, taken in combination, have been shown to act as a powerful one-two punch that knocks down the growth of prostate cancer cells.

1 Sep 2005

Vitamin D, taxotere combination promising for advanced prostate cancer

Results of a new study strongly suggest that DN-101, a new high-dose calcitriol pill designed specifically as a cancer therapy, given in combination with docetaxel (Taxotere) extends the lives of men with advanced prostate cancer.

17 May 2005

Intravenous vitamin D appears to significantly improve the survival of patients on dialysis

The administration of intravenous vitamin D appears to significantly improve the survival of patients on dialysis, according to a study that will be published in the April Journal of the American Society of Nephrology.

28 Feb 2005