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Not yet recruitingNCT07832903Updated Sep 22, 2026

Serial Platelet Count and Indices for Predicting In-Hospital Mortality in Sepsis

An observational study in Sepsis, sponsored by Assiut University. Not yet recruiting. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2026-09-22.

Sponsored by Assiut University · Observational

Study type
Observational
Model
Cohort
Time perspective
Prospective
Enrollment
120
Ages
18 Years and older
Sex
All
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Study summary

This observational study aims to determine if tracking changes in blood platelets over time can help predict the clinical outcomes of adult patients hospitalized with sepsis. While current medical scoring systems (like SOFA and APACHE) help doctors evaluate a patient's risk when they are first admitted, they are often static and may not capture how the body's response changes during the infection. Platelet count and the size of the platelets (mean platelet volume) change dynamically during sepsis.

Researchers will observe the routine daily blood test results of adult sepsis patients during their first 7 to 14 days in the hospital to track these changes. By calculating specific platelet ratios and analyzing their trajectories, the study hopes to find out if these simple, cost-effective markers can accurately predict a patient's risk of in-hospital mortality, and if they can improve the accuracy of current standard severity scores.

Read the detailed description

During sepsis, platelet count (PC) and mean platelet volume (MPV) act as dynamic markers reflecting systemic inflammation, platelet consumption, marrow response, and platelet activation. Current prognostic tools, such as the SOFA and APACHE II/IV scores, provide important baseline risk stratification but are relatively static and may not fully capture the evolving host response to infection.

Emerging evidence indicates that serial platelet indices yield greater prognostic information than single, baseline measurements. Furthermore, composite platelet-derived metrics-such as the MPV/PC ratio, platelet-to-lymphocyte ratio (PLR), CRP-to-platelet ratio (CRP/PLT), and platelet-to-creatinine ratio (PLT/Cr)-integrate signals of inflammation, haemostasis, and organ dysfunction, which may enhance clinical risk prediction. Despite these signals, few prospective studies have simultaneously examined the serial trajectories of PC and MPV, their derived ratios, and their incremental value beyond conventional severity scores.

This prospective cohort study hypothesizes that serial PC and MPV dynamics, along with derived platelet ratios, independently predict in-hospital mortality in adults with sepsis after adjusting for clinical confounders. Demonstrating independent prognostic value and improved reclassification when these trajectory-based markers are combined with SOFA or APACHE scores would support incorporating routine, time-updated platelet indices into sepsis prognostication and risk-stratified management.

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Conditions studied

  • Sepsis

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Keywords

  • Platelet count
  • Mean platelet volume
  • Platelet indices
  • Systemic inflammation
  • In-hospital mortality
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In context

Sepsis

2,416 studies on the registry are indexed under Sepsis; 541 are open to participants now.

This study's planned enrollment of 120 is below the median of 150 across 1,162 observational studies indexed under Sepsis.

Browse Sepsis studies →

Lead sponsor

Assiut University is the lead sponsor of 5,078 studies on the registry; 2,178 are open to participants now.

Of its 14 completed or terminated interventional studies of FDA-regulated products, 0 (0%) have results posted.

Counted across the registry records on this site, refreshed daily.

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Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No
Sampling method
Non-probability sample

Study population

Adult patients admitted to the hospital or Intensive Care Unit (ICU) at Assiut University Hospitals who are diagnosed with sepsis.

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Adults (>18 years).
  • Admitted to the hospital/ICU with sepsis as defined by Sepsis-3 criteria (suspected/proven infection plus an acute increase in SOFA score >= 2).

Exclusion criteria

Exclusion Criteria:

  • Age \<18 years.
  • Known hematologic with active chemotherapy affecting .
  • Platelet transfusion within 24 hours before the first platelet measurement.
  • Chronic thrombocytopenia from non-sepsis causes (e.g., immune thrombocytopenia).
  • Missing core baseline data (e.g., date of admission, vital status).
  • Declined consent.
Terms in these criteria, in plain language(2)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Cancer (malignancy)

Malignancy means cancer. Criteria about another or earlier malignancy ask whether you have had a different cancer, usually within a set number of years.

Some are commonly allowed, such as treated skin cancers other than melanoma and early cancers removed completely — check the exceptions this study lists.

Platelets

Blood cells that help blood clot. Too few raises the risk of bleeding and bruising. A usual adult range is about 150–400 × 10⁹/L (150,000–400,000 per µL); each lab has its own reference range.

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Study design

Observational model
Cohort
Time perspective
Prospective
Enrollment
120 participants (estimated)
Patient registry
No

Groups and cohorts

  • Adult Sepsis Cohort

    Adult patients (older than 18 years) admitted to the hospital or Intensive Care Unit (ICU) who are diagnosed with sepsis according to Sepsis-3 criteria (suspected or proven infection plus an acute increase in SOFA score of 2 or more)

    Diagnostic Test: Serial Complete Blood Counts (CBC)

Interventions

  • Diagnostic testSerial Complete Blood Counts (CBC)

    Routine automated complete blood counts, including platelet count (PC) and mean platelet volume (MPV), collected serially during the first 7-14 days of admission. These are used to evaluate biological trajectories and calculate derived indices (MPV/PC, PLR, CRP/PLT, and PLT/Cr)

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What researchers measure

Primary outcomes

  1. In-hospital mortality

    Death of the patient from any cause prior to hospital discharge, evaluated as a binary outcome (survivor vs. non-survivor).

    Time frame: From hospital admission until hospital discharge, assessed up to 28 days.

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Study locations

No study locations are listed for this record.

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References and documents

Publications

  • Aydemir H, Piskin N, Akduman D, Kokturk F, Aktas E. Platelet and mean platelet volume kinetics in adult patients with sepsis. Platelets. 2015;26(4):331-5. doi: 10.3109/09537104.2012.701027. Epub 2012 Jun 25. PubMed 22731700 ↗
  • Schupp T, Weidner K, Rusnak J, Jawhar S, Forner J, Dulatahu F, Bruck LM, Hoffmann U, Kittel M, Bertsch T, Akin I, Behnes M. Diagnostic and prognostic role of platelets in patients with sepsis and septic shock. Platelets. 2023 Dec;34(1):2131753. doi: 10.1080/09537104.2022.2131753. PubMed 36484263 ↗
  • Wang D, Wang S, Wu H, Gao J, Huang K, Xu D, Ru H. Association Between Platelet Levels and 28-Day Mortality in Patients With Sepsis: A Retrospective Analysis of a Large Clinical Database MIMIC-IV. Front Med (Lausanne). 2022 Apr 7;9:833996. doi: 10.3389/fmed.2022.833996. eCollection 2022. PubMed 35463034 ↗
  • Thorup CV, Christensen S, Hvas AM. Immature Platelets As a Predictor of Disease Severity and Mortality in Sepsis and Septic Shock: A Systematic Review. Semin Thromb Hemost. 2020 Apr;46(3):320-327. doi: 10.1055/s-0039-3400256. Epub 2019 Dec 13. PubMed 31858518 ↗
  • Tekin YK, Tekin G. Mean Platelet Volume-to-Platelet Count Ratio, Mean Platelet Volume-to-Lymphocyte Ratio, and Red Blood Cell Distribution Width-Platelet Count Ratio as Markers of Inflammation in Patients with Ascending Thoracic Aortic Aneurysm. Braz J Cardiovasc Surg. 2020 Apr 1;35(2):175-180. doi: 10.21470/1678-9741-2019-0348. PubMed 32369297 ↗
  • Zhao L, Zhao L, Wang YY, Yang F, Chen Z, Yu Q, Shi H, Huang S, Zhao X, Xiu L, Li X, Li Y. Platelets as a prognostic marker for sepsis: A cohort study from the MIMIC-III database. Medicine (Baltimore). 2020 Nov 6;99(45):e23151. doi: 10.1097/MD.0000000000023151. PubMed 33157998 ↗
  • Liu Y, Zou Y, Liu X, Li M. Stratified assessment of platelets in sepsis: from dynamic counts to functional phenotypes. Front Immunol. 2026 Apr 10;17:1783001. doi: 10.3389/fimmu.2026.1783001. eCollection 2026. PubMed 42039178 ↗
  • Ye Q, Wang X, Xu X, Chen J, Christiani DC, Chen F, Zhang R, Wei Y. Serial platelet count as a dynamic prediction marker of hospital mortality among septic patients. Burns Trauma. 2024 Jun 15;12:tkae016. doi: 10.1093/burnst/tkae016. eCollection 2024. PubMed 38882552 ↗
  • Lobo SM, Lobo FR, Bota DP, Lopes-Ferreira F, Soliman HM, Melot C, Vincent JL. C-reactive protein levels correlate with mortality and organ failure in critically ill patients. Chest. 2003 Jun;123(6):2043-9. doi: 10.1378/chest.123.6.2043. PubMed 12796187 ↗

Individual participant data

Plan to share: Undecided

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Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Start is estimated for Nov 2026; primary completion for Nov 2026, 0 months later.

Of 491 non-industry observational studies under Sepsis, half reached primary completion within 29 months of starting (the median), counting those still running; a quarter within 13 and three quarters within 58. This study's planned 0 months is below that.

Counting every sponsor, half of 543 studies reached it within 27 months; a quarter within 12 and three quarters within 56.

How these figures are worked out, and which studies are left out of them.

Registered
Sep 16, 2026
First posted
Sep 22, 2026
StartEst.
Nov 2026
Primary completionEst.
Nov 2026
CompletionEst.
Dec 2026
Last update
Sep 22, 2026
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Sep 22, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT07832903
Lead sponsor
Assiut University
Responsible party
Ahmed Abdelwahed Abdeljaber Abdelmawjood (Resident Doctor, Assiut University) — Principal investigator
First posted
Sep 22, 2026
Start date
Nov 2026 (estimated)
Primary completion
Nov 2026 (estimated)
Completion
Dec 2026 (estimated)
Last update
Sep 22, 2026

Study contacts

Ahmed Abdelwahed
Contact
ahmed.18313435@med.aun.edu.eg
01115279800

Oversight

FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is not yet recruiting, as verified in Sep 2026. You cannot join it, but the record below documents what was studied.

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