Evidence map›Paper›PMID 25037736›Full record

SynthesisClinical cancer research : an official journal of the American Association for Cancer Research2014

Is the "3+3" dose-escalation phase I clinical trial design suitable for therapeutic cancer vaccine development? A recommendation for alternative design.

Osama E Rahma, Emily Gammoh, Richard M Simon, Samir N Khleif

Abstract readMeta-Analysis
In one paragraph

Synthesis in Clinical cancer research : an official journal of the American Association for Cancer Research, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers.

0numbers the graph read from it
0cells of the map it votes in
31citing papers in PubMed
–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

31 citing papers in PubMed.

  1. Trial
  2. Statistical controversies in clinical research: early-phase adaptive design for combination immunotherapies.Annals of oncology : official journal of the European Society for Medical Oncology · 2017
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  14. Breast cancer vaccines for treatment and prevention.Breast cancer research and treatment · 2022
    Review
  15. Review
  16. Review
  17. Article
  18. Review
  19. Personalized Cancer Vaccines: Clinical Landscape, Challenges, and Opportunities.Molecular therapy : the journal of the American Society of Gene Therapy · 2021
    Review
  20. Article
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

4 authors.

Osama E RahmaVaccine Branch, National Cancer Institute, Bethesda, Maryland. Division of Hematology/Oncology, University of Virginia, Charlottesville, Virginia.
Emily GammohVaccine Branch, National Cancer Institute, Bethesda, Maryland.
Richard M SimonBiometric Research Branch, National Cancer Institute, Rockville, Maryland.
Samir N KhleifVaccine Branch, National Cancer Institute, Bethesda, Maryland. Georgia Health Sciences Cancer Center, Augusta, Georgia. skhleif@gru.edu.

Funding

Clinical trial development in cancer vaccinesZIABC010757 · NCI · DIVISION OF BASIC SCIENCES - NCI · PI KHLEIF, SAMIR · 2009 to 2012
$1.4M
Intramural NIH HHS ZIA BC010757
6 · The paper itself

Abstract

purposePhase I clinical trials are generally conducted to identify the maximum tolerated dose (MTD) or the biologically active dose (BAD) using a traditional dose-escalation design. This design may not be applied to cancer vaccines, given their unique mechanism of action. The FDA recently published "Guidance for Industry: Clinical Considerations for Therapeutic Cancer Vaccines." However, many questions about the design of cancer vaccine studies remain unanswered. EXPERIMENTAL

designWe analyzed the toxicity profile in 239 phase I therapeutic cancer vaccine trials. We addressed the ability of dose escalation to determine the MTD or the BAD in trials that used a dose-escalation design.

resultsThe rate of grade 3/4 vaccine-related systemic toxicities was 1.25 adverse events per 100 patients and 2 per 1,000 vaccines. Only two of the 127 dose-escalation trials reported vaccine-related dose limiting toxicities, both of which used bacterial vector vaccines. Out of the 116 trials analyzed for the dose-immune response relationship, we found a statistically significant dose-immune response correlation only when the immune response was measured by antibodies (P < 0.001) or delayed type hypersensitivity (P < 0.05). However, the increase in cellular immune response did not appear further sustainable with the continued increase in dose.

conclusionsOur analysis suggests that the risks of serious toxicities with therapeutic cancer vaccines are extremely low and that toxicities do not correlate with dose levels. Accordingly, the conventional dose-escalation design is not suitable for cancer vaccines with few exceptions. Here, we propose an alternative design for therapeutic cancer vaccine development.

Indexed as

Cancer VaccinesClinical Trials, Phase I as TopicHumansNeoplasmsResearch DesignCancer Vaccines

Identifiers

PMID25037736
PMCPMC4167476

What OpenQuestion holds

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Registered trials

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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.