Linaclotide is approved in
"I am really pleased to receive the positive top-line results from the
Phase III chronic constipation trial. If approved, Astellas expects
linaclotide to provide a new therapeutic option for patients suffering
from this condition, in addition to IBS-C, for which linaclotide has
already obtained marketing approval in Japan," said
"Today's positive Phase III results for linaclotide in chronic
constipation mark the ninth Phase III/IIIb clinical trial in which
linaclotide has met its primary endpoints, once again demonstrating
consistent results in clinical trials across two indications, evaluating
multiple doses and conducted in multiple countries," said
The double-blind, placebo-controlled Phase III clinical trial randomized
186 adults with CC in
Further detailed results from the Phase III trial are expected to be presented at an upcoming scientific meeting.
INDICATIONS AND USAGE (
LINZESS (linaclotide) is indicated in adults for the treatment of both irritable bowel syndrome with constipation (IBS-C) and chronic idiopathic constipation (CIC).
IMPORTANT SAFETY INFORMATION (
WARNING: RISK OF SERIOUS DEHYDRATION IN PEDIATRIC PATIENTS
LINZESS is contraindicated in patients less than 6 years of age. In nonclinical studies in neonatal mice, administration of a single, clinically relevant adult oral dose of linaclotide caused deaths due to dehydration. Use of LINZESS should be avoided in patients 6 years to less than 18 years of age. The safety and effectiveness of LINZESS has not been established in patients less than 18 years of age.
- LINZESS is contraindicated in patients less than 6 years of age due to the risk of serious dehydration.
- LINZESS is contraindicated in patients with known or suspected mechanical gastrointestinal obstruction.
Warnings and Precautions
- LINZESS is contraindicated in patients less than 6 years of age. The safety and effectiveness of LINZESS in patients less than 18 years of age have not been established. In neonatal mice, linaclotide increased fluid secretion as a consequence of GC-C agonism resulting in mortality within the first 24 hours due to dehydration. Due to increased intestinal expression of GC-C, patients less than 6 years of age may be more likely than patients 6 years of age and older to develop severe diarrhea and its potentially serious consequences.
- Use of LINZESS should be avoided in pediatric patients 6 to less than 18 years of age. Although there were no deaths in older juvenile mice, given the deaths in young juvenile mice and the lack of clinical safety and efficacy data in pediatric patients, use of LINZESS should be avoided in pediatric patients 6 years to less than 18 years of age.
- Diarrhea was the most common adverse reaction in LINZESS-treated patients in the pooled IBS-C and CIC double-blind placebo-controlled trials. The incidence of diarrhea was similar in the IBS-C and CIC populations. Severe diarrhea was reported in 2% of 145 mcg and 290 mcg LINZESS-treated patients, and in < 1% of 72 mcg LINZESS-treated CIC patients. If severe diarrhea occurs, dosing should be suspended and the patient rehydrated.
Common Adverse Reactions (incidence =2% and greater than placebo)
- In IBS-C clinical trials: diarrhea (20% vs 3% placebo), abdominal pain (7% vs 5%), flatulence (4% vs 2%), headache (4% vs 3%), viral gastroenteritis (3% vs 1%) and abdominal distension (2% vs 1%).
- In CIC trials of a 145 mcg dose: diarrhea (16% vs 5% placebo), abdominal pain (7% vs 6%), flatulence (6% vs 5%), upper respiratory tract infection (5% vs 4%), sinusitis (3% vs 2%) and abdominal distension (3% vs 2%). In a CIC clinical trial of a 72 mcg dose: diarrhea (19% vs 7% placebo) and abdominal distension (2% vs < 1%).
Please see full Prescribing Information: http://www.allergan.com/assets/pdf/linzess_pi
Linaclotide is a guanylate cyclase‐C (GC‐C) agonist that is structurally
related to the naturally occurring peptides, guanylin and uroguanylin.
Linaclotide is thought to work in two ways based on nonclinical studies.
Linaclotide binds to the GC-C receptor locally, within the intestinal
epithelium. Activation of GC-C results in increased intestinal fluid
secretion and accelerated transit and a decrease in the activity of
pain-sensing nerves in the intestine. The clinical relevance of the
effect on pain fibers, which is based on nonclinical studies, has not
been established. Linaclotide is marketed by Ironwood and Allergan
plc in the United States as LINZESS® and is
indicated for the treatment of adults with irritable bowel syndrome with
constipation (IBS-C) or chronic idiopathic constipation (CIC), with
nearly 1.5 million unique patients in
Ironwood Cautionary Notes
This press release contains forward-looking statements. Investors are
cautioned not to place undue reliance on these forward-looking
statements, including statements about the launch of linaclotide in
Astellas Cautionary Notes
The safety and efficacy of the agents discussed herein are under investigation and have not been established. There is no guarantee that the agents will receive regulatory approval and become commercially available for uses being investigated. Information about pharmaceutical products (including products currently in development) which is included in this press release is not intended to constitute an advertisement or medical advice.
In this press release, statements made with respect to current plans, estimates, strategies and beliefs and other statements that are not historical facts are forward-looking statements about the future performance of Astellas. These statements are based on management's current assumptions and beliefs in light of the information currently available to it and involve known and unknown risks and uncertainties. A number of factors could cause actual results to differ materially from those discussed in the forward-looking statements. Such factors include, but are not limited to: (i) changes in general economic conditions and in laws and regulations, relating to pharmaceutical markets, (ii) currency exchange rate fluctuations, (iii) delays in new product launches, (iv) the inability of Astellas to market existing and new products effectively, (v) the inability of Astellas to continue to effectively research and develop products accepted by customers in highly competitive markets, and (vi) infringements of Astellas' intellectual property rights by third parties.
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