Seamless trials in oncology: A cross-sectional analysis of characteristics and reporting.
<h4>Objectives</h4>Seamless clinical trials have received much attention as a possible way to expedite drug development. The growing importance of seamless design can be seen in oncology research, especially in the early stages of drug development. Our objective is to examine the basic c...
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Public Library of Science (PLoS)
2024-01-01
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| Series: | PLoS ONE |
| Online Access: | https://doi.org/10.1371/journal.pone.0312797 |
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| author | Katarzyna Klas Karolina Strzebonska Paola Buedo Alicja Włodarczyk Samuel Gordon Paulina Kaszuba Maciej Polak Marcin Waligora |
| author_facet | Katarzyna Klas Karolina Strzebonska Paola Buedo Alicja Włodarczyk Samuel Gordon Paulina Kaszuba Maciej Polak Marcin Waligora |
| author_sort | Katarzyna Klas |
| collection | DOAJ |
| description | <h4>Objectives</h4>Seamless clinical trials have received much attention as a possible way to expedite drug development. The growing importance of seamless design can be seen in oncology research, especially in the early stages of drug development. Our objective is to examine the basic characteristics of seamless early-phase oncology trials registered on the ClinicalTrials.gov database and to determine their results reporting rates. We also aim to identify factors associated with results reporting.<h4>Methods</h4>Cross-sectional study. We defined seamless early-phase trials as either those registered as Phase 1/2 or Phase 1 with planned expansion cohort(s). Using the ClinicalTrials.gov registry, we searched for interventional cancer clinical trials with primary completion date (PCD) between 2016 and 2020. After trial selection, we performed manual data extraction based on the trial record description and the results posted in the trial registry. We used logistic regression to search for predictors of results reporting. Protocol: https://osf.io/m346x/.<h4>Results</h4>We included 1051 seamless early-phase oncology trials reported as completed (PCD) between 2016 and 2020. We provided descriptive statistics including the number of patients enrolled, study start date, primary completion date, funding, type of intervention, cancer type, design details, type of endpoints, recruitment regions, and number of trial sites. Overall, only 34.7% trials reported results on ClinicalTrials.gov. The results reporting rates for 24 months was 24.0%. The overall reporting rate for Phase 1/2 studies was over three times higher than for seamless Phase 1.<h4>Conclusions</h4>Our study provides cross-sectional data on seamless early-phase oncology trials registered on ClinicalTrials.gov. We highlight the challenges of the evolving clinical trial design landscape and the problem of missing results in the seamless design context, which raises serious ethical concerns. Efforts should be made to adapt the functionality of the ClinicalTrials.gov database to emerging clinical trial models. |
| format | Article |
| id | doaj-art-ae2bf7261c484e218a55ca803894379f |
| institution | OA Journals |
| issn | 1932-6203 |
| language | English |
| publishDate | 2024-01-01 |
| publisher | Public Library of Science (PLoS) |
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| series | PLoS ONE |
| spelling | doaj-art-ae2bf7261c484e218a55ca803894379f2025-08-20T02:19:30ZengPublic Library of Science (PLoS)PLoS ONE1932-62032024-01-011912e031279710.1371/journal.pone.0312797Seamless trials in oncology: A cross-sectional analysis of characteristics and reporting.Katarzyna KlasKarolina StrzebonskaPaola BuedoAlicja WłodarczykSamuel GordonPaulina KaszubaMaciej PolakMarcin Waligora<h4>Objectives</h4>Seamless clinical trials have received much attention as a possible way to expedite drug development. The growing importance of seamless design can be seen in oncology research, especially in the early stages of drug development. Our objective is to examine the basic characteristics of seamless early-phase oncology trials registered on the ClinicalTrials.gov database and to determine their results reporting rates. We also aim to identify factors associated with results reporting.<h4>Methods</h4>Cross-sectional study. We defined seamless early-phase trials as either those registered as Phase 1/2 or Phase 1 with planned expansion cohort(s). Using the ClinicalTrials.gov registry, we searched for interventional cancer clinical trials with primary completion date (PCD) between 2016 and 2020. After trial selection, we performed manual data extraction based on the trial record description and the results posted in the trial registry. We used logistic regression to search for predictors of results reporting. Protocol: https://osf.io/m346x/.<h4>Results</h4>We included 1051 seamless early-phase oncology trials reported as completed (PCD) between 2016 and 2020. We provided descriptive statistics including the number of patients enrolled, study start date, primary completion date, funding, type of intervention, cancer type, design details, type of endpoints, recruitment regions, and number of trial sites. Overall, only 34.7% trials reported results on ClinicalTrials.gov. The results reporting rates for 24 months was 24.0%. The overall reporting rate for Phase 1/2 studies was over three times higher than for seamless Phase 1.<h4>Conclusions</h4>Our study provides cross-sectional data on seamless early-phase oncology trials registered on ClinicalTrials.gov. We highlight the challenges of the evolving clinical trial design landscape and the problem of missing results in the seamless design context, which raises serious ethical concerns. Efforts should be made to adapt the functionality of the ClinicalTrials.gov database to emerging clinical trial models.https://doi.org/10.1371/journal.pone.0312797 |
| spellingShingle | Katarzyna Klas Karolina Strzebonska Paola Buedo Alicja Włodarczyk Samuel Gordon Paulina Kaszuba Maciej Polak Marcin Waligora Seamless trials in oncology: A cross-sectional analysis of characteristics and reporting. PLoS ONE |
| title | Seamless trials in oncology: A cross-sectional analysis of characteristics and reporting. |
| title_full | Seamless trials in oncology: A cross-sectional analysis of characteristics and reporting. |
| title_fullStr | Seamless trials in oncology: A cross-sectional analysis of characteristics and reporting. |
| title_full_unstemmed | Seamless trials in oncology: A cross-sectional analysis of characteristics and reporting. |
| title_short | Seamless trials in oncology: A cross-sectional analysis of characteristics and reporting. |
| title_sort | seamless trials in oncology a cross sectional analysis of characteristics and reporting |
| url | https://doi.org/10.1371/journal.pone.0312797 |
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