GREENWOOD VILLAGE, Colo.
Aug. 1, 2012
/PRNewswire/ -- Ampio Pharmaceuticals, Inc. (Nasdaq: AMPE), a clinical stage biopharmaceutical company developing drugs for the treatment of inflammation, eye disease, kidney disease, CNS disease, metabolic disease and male sexual dysfunction today announced that a pre-IND meeting with the FDA's ophthalmology division of the Center for Drug Evaluation and Research (CDER) took place on
2012 seeking guidance for a clinical trial path for Optina
. A summary of the meeting is as follows:
- The meeting followed a letter from the FDA providing guidance for the path of approval of Optina ™ in the USA.
- The FDA agreed to Ampio's proposed indication for Optina™ as a drug for the treatment of Diabetic Macular Edema (DME) in adults.
- The FDA agreed that the approval process through the 505(b)2 pathway is acceptable.
- The FDA raised no safety or CMC concerns.
- The FDA agreed that no additional non-clinical studies are necessary and that guidance for the dose and inclusion/exclusion criteria for this larger trial may be drawn from the recently completed successful Canadian trial.
- The proposed study, agreed by the FDA to be conducted by Ampio, will be based on similar end points as the intraocular injectable drug, Lucentis™
, Ampio's Chief Regulatory Officer, noted: "We are now able to launch a larger study using visual acuity rather than Optical Coherence Tomography (OCT) as the measure of efficacy and we are able to adjust the dosage to body mass index (BMI) to achieve the optimal benefit. We are pleased that the injectable drug Lucentis™ is likely to be approved and made available to the underserved DME patients. We believe Optina
may provide additional advantages to these patients, as Optina™ is administered orally and is based on a very low dose of a previously approved drug, danazol. Extensive clinical experience with the drug has allowed the FDA to permit Ampio to use the 505(b)2 path for drug registration. The 505(b)2 is a significantly shorter and less expensive path than those of new chemical entities. There is an obvious advantage to an oral drug vs. one that requires injection directly into the eye. Complications such as eye infection, increased intra ocular pressure (IOP) and local eye irritation reported in the Lucentis™ studies are NOT a concern for Optina
, Ampio's CEO, reflected on the achievement of this latest milestone, "One year ago we selected three (3) drugs from our extensive pipeline and set as our goal the advancement of each drug through carefully managed clinical paths into late stage pivotal trials that are within our means to finance, are relatively short in duration and in full compliance with FDA guidance. These preparatory clinical trials took place in
). With this latest meeting with the FDA, we have met our interim goal. We now have two drugs poised for pivotal trials (Zertane™ and Ampion™) and Optina™ is approved for a 505 (b) 2 pathway in the
About the Canadian Clinical Trial
The Optina™ trial, conducted at St Michael Hospital in
, was a phase II, placebo-controlled, double-masked study to evaluate the efficacy and safety of a 12-week treatment with oral Optina™ in adult patients with Diabetic Macular Edema (DME). Three Optina™ doses were studied and administered orally twice daily. Patients were randomized into one of the three Optina™ arms, or placebo. The primary endpoint was change from baseline to week twelve of treatment in retinal thickness as measured by Optical Coherence Tomography (OCT). Secondary endpoints were 1) change from baseline to week twelve in retinal volume and 2) change from baseline to week twelve in Early Treatment. The study results indicate a clinically meaningful reduction in edema at the appropriate dosage and a parallel improvement in visual acuity.
Ampio is developing Optina
, an orally administered low dose of danazol, for the treatment of diabetic macular edema (DME). Ampio's Chief Scientific Officer discovered an unexpected activity in his investigation of the mechanism of action of danazol: very low doses reversed inflammation induced increases in the permeability of blood vessels, thus reducing vascular leakage. Dr. Bar-Or subsequently managed In Vitro studies that suggested this effect may reduce the vasogenic edema produced from multiple diseases, including diabetic macular edema which can impair vision and cause blindness (Diabetic Macula Edema, DME). The specific Optina dosages are proprietary and subject to multiple patent filings.
Danazol, a derivative of the synthetic steroid ethisterone, was approved by the FDA in the 1970s for endometriosis and, more recently, for other chronic indications, including hereditary angioedema.