Patents vs patients 1-0: The case of chenodeoxycholic acid

Sarah Marie Briké1, Wouter Meersseman1,2, David Cassiman1

  • 1Department of Gastroenterology-Hepatology and Metabolic Center, University Hospitals Leuven, Leuven, Belgium.

Insights

Profit-driven decisions impacted chenodeoxycholic acid availability and pricing, leading to interrupted treatment for a cerebrotendinous xanthomatosis patient. This resulted in severe health consequences due to the lack of essential medication.

Area of Science:

  • Biochemistry
  • Medical Economics
  • Rare Diseases

Background:

  • Cerebrotendinous xanthomatosis (CTX) is a rare autosomal recessive sterol storage disease.
  • Chenodeoxycholic acid (CDCA) is the primary treatment for CTX, normalizing bile acid synthesis.
  • Disruptions in CDCA availability and pricing can significantly impact patient management.

Purpose of the Study:

  • To highlight the detrimental effects of market-driven disruptions on CTX treatment.
  • To underscore the importance of consistent CDCA access for patients with cerebrotendinous xanthomatosis.

Main Methods:

  • Case report analysis.
  • Review of treatment discontinuation and patient outcomes.
  • Examination of factors affecting drug availability and pricing.

Main Results:

  • Profit-driven market dynamics led to the discontinuation of CDCA therapy.
  • The patient experienced severe health deterioration following treatment interruption.
  • Economic factors directly impacted therapeutic continuity and patient well-being.

Conclusions:

  • Market forces can have catastrophic consequences on rare disease treatment.
  • Ensuring stable access to essential medications like CDCA is critical for managing CTX.
  • Patient health outcomes are directly linked to the reliable availability and affordability of treatments.

Related Concept Videos

Clinical Trials: Overview01:11

Clinical Trials: Overview

Clinical development focuses on how the drug will interact with the human body and encompasses four key phases of clinical trials, each serving a specific purpose in assessing the safety and effectiveness of new drugs. These phases overlap and build upon one another. Phase I involves a small group of healthy volunteers (typically 20-80 individuals) or, in cases where significant toxicity is expected, patients with the targeted disease, such as cancer or AIDS. The volunteers are tested for...
3.9K
Direct-Acting Cholinergic Agonists: Pharmacokinetics01:31

Direct-Acting Cholinergic Agonists: Pharmacokinetics

Direct-acting cholinergic agonists, such as synthetic choline esters and naturally occurring alkaloids, exert their effects by enhancing the actions of acetylcholine and stimulating the parasympathetic nervous system. Synthetic choline esters share structural similarities with acetylcholine. For example, they have a positively charged quaternary ammonium or onium group, contributing to their hydrophilic characteristics. As a result, they are poorly absorbed in the body through oral...
1.4K
Bioavailability Study Design: Healthy Subjects Versus Patients01:15

Bioavailability Study Design: Healthy Subjects Versus Patients

Bioavailability studies are essential for evaluating a drug's therapeutic efficacy and understanding its absorption patterns under various physiological conditions. Conducting such studies on target patient populations provides more relevant data by simulating real-world disease states. However, practical challenges often necessitate the use of young, healthy adult volunteers as study subjects.Patients may exhibit altered drug absorption patterns due to the effects of the disease itself,...
24
Clinical Trials01:16

Clinical Trials

Clinical trials are prospective experimental studies conducted on humans to determine the safety and efficacy of treatments, drugs, diet methods, and medical devices. Using statistics in clinical trials enables researchers to derive reasonable and accurate conclusions from the collected data, allowing them to make wise decisions in uncertain situations. In medical research, statistical methods are crucial for preventing errors and bias.
There are four phases in a clinical trial. A phase one...
9.8K
Bioequivalence of Drugs: Drugs with Multiple Indications01:09

Bioequivalence of Drugs: Drugs with Multiple Indications

The concept of therapeutic equivalence (TE) in drugs with multiple indications is complex. A generic drug may be therapeutically equivalent to a brand-name product for one specific indication, but this doesn't necessarily mean it's equivalent for all other indications. Evidence of TE in one patient group and bioequivalence shown in healthy volunteers can support—but not confirm—TE for other indications. However, definitive proof requires individual clinical studies for each...
18
Drug Products: Biologics, Biosimilars and Interchangeables01:28

Drug Products: Biologics, Biosimilars and Interchangeables

Body:Biologics, derived from living sources such as humans, animals, or microorganisms, represent a significant category of pharmaceuticals. These complex molecules, developed through advanced biotechnological methods or purified from natural sources, include essential medical treatments like insulin and growth hormones. The complexity of biologics arises from their large molecular structures and the intricate processes required for their production, making them distinct from conventional...
23