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Creating a New Dosage Form from an Approved Drug for a New Rare Disease Indication

By Sundeep Sethia

Background

Armed with a promising idea and an urgency to help patients with Hereditary Hemorrhagic Telangiectasia, Cure HHT contacted Pii for assistance in developing a formulation and filing an Investigational New Drug (IND) application with FDA.

Cure HHT is a foundation representing a group of patients, and their families, suffering from a genetic blood vessel disorder that causes bleeding in multiple organs of the body. This disease affects males and females of all ages and from all ethnic and racial backgrounds. The genetic mutation causes blood vessels to form abnormally and lack normal capillaries between arteries and veins. Patients with this disorder experience arterial blood under high pressure flowing directly into low-pressure veins without first having to move through small capillaries. The area where the artery connects directly to the vein tends to be a fragile site that can rupture and bleed, and tissue in the areas receive a decreased amount of oxygen as well. Symptoms can appear as re-occurring nosebleeds or as serious strokes and heart attacks. There is currently no treatment for this disease, and therapies focus on treating the symptoms only.

A pharmaceutical company, developing a molecule for another indication, discovered side effects during clinical trials that might mitigate or even cure the rare hereditary blood disorder. The initial clinical work began for the rare blood disorder, but due to a variety of unexpected circumstances, the program was never completed. However, a clinician that had worked on the original project began working with Cure HHT to reestablish the project.

Led by a passionate clinician who had experience with the molecule, Cure HHT believed they had the ability to pursue a cure. The project was re-started, an Investigational New Drug (IND) application was filed, but the FDA rejected it, placing the project on a clinical hold, because it lacked adequate testing and controls. The foundation was disappointed by the set-back but remained stalwart in their intent to find a solution.

Cure HHT possessed a wealth of information on the rare disease and direct clinical experience yet lacked a feasible formulation with adequate testing and controls. Pii was confident they could help.

The Challenge

The molecule, a BCS Class II, had originally been developed as 200mg and 400mg tablet formulations for a different indication. The customer believed that a 25mg dose was needed for the rare disease, but they required a fully developed, tested, and properly documented formulation and regulatory support to properly file an IND application with the FDA. The most significant challenge was they needed the work done in an extremely short timeframe. The Pii team felt their development, analytical and CMC experience and ability to work collaboratively for rapid solutions could overcome the challenges.

Confidence, Experience and Collaboration

The formulation, analytical and regulatory teams at Pii worked with a unity of effort and filed the IND fourteen days after starting the project. Here are the eight key factors that led to success.

  • Early gap analysis: first step, the Pii team conducted a gap analysis of the customer’s initial work so they could focus appropriate resources on the biggest challenges and solve problems before they occur.
  • Keeping it simple: the team sought a stable, simple formulation solution that would be easily understood and communicated to FDA for approval: a 25mg dose in a re-sized hard gelatin capsule comprised of two ingredients in addition to the API.
  • Using materials on hand: to eliminate the time and costs associated with finding and contracting partners for materials, Pii focused on using what they had on hand, microcrystalline cellulose, magnesium stearate and gelatin capsules, backed by a rigorous quality risk analysis.
  • CMC expertise: the team relied on their deep Chemistry and Manufacturing Controls (CMC) experience to select the right excipients and establish the testing and controls that were inadequate in the first IND application.
  • PPQ expertise: the team’s extensive experience in process performance qualification (PPQ) created a solution after only one blend uniformity test, saving significant time.
  • Parallel supporting work: formulation development work, analytical testing, and regulatory filing preparation was done simultaneously, again saving time.
  • Collaboration: the process was rigorous and systematic involving a team of formulation developers, analytical specialists, and regulatory experts in which collaborative communications is a well-established routine.
  • Success as the end-state: due diligence was incorporated into each step of the process so that upon having initial clinical trial success, Pii could rapidly scale-up manufacturing to support further clinical studies.

Results

Cure HHT Goals: Find, Treat, Cure

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ABOUT Pii

Pharmaceutics International, Inc. (Pii), A Jabil Company, is a US-based contract development and manufacturing organization (CDMO) located in Hunt Valley, Maryland. The experienced scientists, engineers, and staff at Pii pride themselves on adroitly employing a phase appropriate method of drug development for the prudent use of their customer’s resources as they solve challenging problems. In addition to offering end-to-end development services, Pii manufactures a variety of dosage forms to include complex parenteral drugs and has a wealth of analytical testing capabilities. Its Hunt Valley campus has four aseptic suites with lyophilization capabilities. Our talented professionals stand ready to help!

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