Related Experiment Video
Updated: Aug 23, 2025

Implementation of In Vitro Drug Resistance Assays: Maximizing the Potential for Uncovering Clinically Relevant Resistance Mechanisms
Published on: December 9, 2015
Perspectives of Academic Oncologists About Offering Expanded Access to Investigational Drugs
Patrick Gould1, Tasnim Salam1, Laura Kimberly2
1Perelman School of Medicine, University of Pennsylvania, Philadelphia.
Importance:
The expanded access (EA) pathway permits patients to be treated with investigational medical products outside clinical trials. Because cancer care is a common indication for which EA is sought and these efforts require physician management, understanding oncologists' perspectives can help illuminate factors influencing patient access.
Objective:
To learn how oncologists practicing at academic medical centers (AMCs) perceive EA and their role in offering it.
Design, Setting, And Participants:
This qualitative study used data from semistructured interviews conducted from February 2020 to September 2021 with a purposive sample of oncologists recruited from large, urban AMCs in the northeast United States. Oncologists who had submitted at least 1 single-patient EA request to the institutional review boards at the University of Pennsylvania, Children's Hospital of Philadelphia, NYU Langone Health, and Dana-Farber Cancer Institute from January 1, 2014, through January 31, 2020, were eligible to participate. Data were analyzed from July 2021 to March 2022.
Main Outcomes And Measures:
Interviews focused on oncologist practice demographics, experience with EA, factors relevant to decisions to pursue EA and comfort with those decisions, perspectives on oncologists' role in EA, perspectives on the FDA's role, and the Right to Try pathway to access investigational drugs.
Results:
Eligible oncologists were interviewed until thematic saturation was reached, resulting in 25 interviews; most participants were women (15 participants [60%]), reported primarily treating adult patients (15 participants [60%]), had more than 10 years of clinical experience (16 participants [64%]), and had submitted at least 2 single-patient EA requests to their institutional review boards during the relevant period (14 participants [56%]). Oncologists viewed EA as an important tool for securing what they determined to be the best treatment option for their patients based on their own expert assessment of available data. Interviewees reported that they would rather access interventions as commercially available products or through clinical trials; however, if the preferred option was not available through these means, they viewed pursuit of EA as part of their obligation to patients, while often recognizing the potential for inequities in the broader patient population beyond their institutions. Participating oncologists felt confident pursuing investigational drugs for treatment use, despite the absence of FDA marketing approval, and did not necessarily view EA as a last resort.
Conclusions And Relevance:
These findings indicate that oncologists practicing in large academic settings sought to treat patients with the interventions they deemed most likely to be beneficial, regardless of approval status. As such, they viewed EA as an unexceptional means to obtain promising products, although it remains unclear whether their confidence in evaluating investigational treatments was justified. Future research should examine whether oncologists outside large AMCs share this confidence, as differences may influence patient access to the EA treatment pathway.
More Related Videos
07:40Preparation of Peripheral Blood Mononuclear Cell Pellets and Plasma from a Single Blood Draw at Clinical Trial Sites for Biomarker Analysis
Published on: March 20, 2021
10:27Testing Targeted Therapies in Cancer using Structural DNA Alteration Analysis and Patient-Derived Xenografts
Published on: July 25, 2020
Related Concept Videos
Treatment Resistant Cancers
Nursing Ethical Principles II
Consider the following scenario, which illustrates how these principles are applied in the care of Mr. John, a fifty-year-old teacher diagnosed with metastatic liver cancer.
Initially, Mr. John's...
Cancer Therapies
However, cancer treatments can pose several challenges, as therapies used to kill cancer cells are generally also toxic to normal cells. Moreover, cancer cells mutate rapidly and can develop resistance to chemical agents or radiation therapy. Besides, all types of cancer cells may not respond to the same therapy. Some cancer cells respond to one...
Clinical Trials: Overview
Targeted Cancer Therapies
There are several types of targeted therapies against...
Combination Therapies and Personalized Medicine
The combination of the drug acetazolamide and sulforaphane is a good example of combination therapy to treat cancer. The cells in the interior of a large tumor often die due to the hypoxic and...