Evidence map›Paper›PMID 36186544›Full record

ArticleContemporary clinical trials communications2022

Augmenting control arms with real-world data for cancer trials: Hybrid control arm methods and considerations.

W Katherine Tan, Brian D Segal, Melissa D Curtis, Shrujal S Baxi, William B Capra, Elizabeth Garrett-Mayer, Brian P Hobbs, David S Hong, Rebecca A Hubbard, Jiawen Zhu and 2 more

Abstract read
In one paragraph

Article in Contemporary clinical trials communications, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed, 1 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

7 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Article
  3. Article
  4. Article
  5. Review
  6. Article
  7. Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

12 authors.

W Katherine TanFlatiron Health, Inc., New York, NY, 10013, USA.
Brian D SegalFlatiron Health, Inc., New York, NY, 10013, USA.
Melissa D CurtisFlatiron Health, Inc., New York, NY, 10013, USA.
Shrujal S BaxiFlatiron Health, Inc., New York, NY, 10013, USA.
William B CapraGenentech, South San Francisco, CA, 94080, USA.
Elizabeth Garrett-MayerAmerican Society of Clinical Oncology Center for Research and Analytics (CENTRA), Alexandria, VA, 22314, USA.
Brian P HobbsDell Medical School, University of Texas, Austin, TX, 78712, USA.
David S HongUniversity of Texas M.D. Anderson Cancer Center, Houston, TX, 77230, USA.
Rebecca A HubbardUniversity of Pennsylvania School of Medicine, Philadelphia, PA, 19104, USA.
Jiawen ZhuGenentech, South San Francisco, CA, 94080, USA.
Somnath SarkarFlatiron Health, Inc., New York, NY, 10013, USA.
Meghna SamantFlatiron Health, Inc., New York, NY, 10013, USA.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Background: Hybrid controlled trials with real-world data (RWD), where the control arm is composed of both trial and real-world patients, could facilitate research when the feasibility of randomized controlled trials (RCTs) is challenging and single-arm trials would provide insufficient information. Methods: We propose a frequentist two-step borrowing method to construct hybrid control arms. We use parameters informed by a completed randomized trial in metastatic triple-negative breast cancer to simulate the operating characteristics of dynamic and static borrowing methods, highlighting key trade-offs and analytic decisions in the design of hybrid studies. Results: Simulated data were generated under varying residual-bias assumptions (no bias: HR Conclusion: By pairing high-quality external data with rigorous simulations, researchers have the potential to design hybrid controlled trials that better meet the needs of patients and drug development.

Indexed as

External comparator cohortsHybrid control armsReal-world data

Identifiers

PMID36186544
PMCPMC9519429

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.