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RecruitingNCT07079137SCOPE-SnakeUpdated Aug 18, 2026

Predictive Accuracy of the Snakebite Severity Score (SSS) in Identifying Syndrome-Specific Core Outcome Parameters Among Envenomated Patients Presenting to the Emergency Department

An observational study in Snake Bite, sponsored by Jubilee Mission Medical College and Research Institute. Recruiting at 1 site in India. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2026-08-18.

Sponsored by Jubilee Mission Medical College and Research Institute · Observational

From the registry’s dates

  • Started Jun 2025; still recruiting 1 year 4 months later.
Study type
Observational
Model
Cohort
Time perspective
Prospective
Enrollment
220
Ages
18 Years and older
Sex
All
01

Study summary

India reports \~58,000 snakebite deaths/year, over 50% of global mortality. Clinical outcomes of antivenom may vary due to regional venom differences, delayed access to care, ineffective use of existing polyvalent antivenom. There is a need for an India-specific severity assessment tool because it improves risk stratification \& clinical decisions ,guides antivenom use, supports rural healthcare infrastructure, reduces morbidity, mortality, and financial burden.

Existing scoring systems lack validation for Indian envenomation patterns. Variability in venom (both inter- and intra-species) leads to inconsistent clinical outcomes.Misapplication of non-Indian tools may cause: Inaccurate severity grading, inappropriate antivenom use, poor patient outcomes.

PRIMARY OBJECTIVE:

● To determine the predictive accuracy of Snakebite Severity Score (SSS) done at the time of presentation in identifying syndrome specific core outcomes for snakebites.

SECONDARY OBJECTIVES:

  • To evaluate the predictive accuracy of SSS in identifying patients at risk of mortality at 6 weeks
  • To determine the predictive accuracy of modified Snakebite Severity Score (mSSS) done at the time of presentation in identifying syndrome specific core outcomes for snakebites

METHODOLOGY Study Duration: 18 months (Proposed)

  • Setting: Emergency Dept, Jubilee Mission Medical College
  • Sampling method :consecutive sampling
  • Sample Size Calculation:

n = Z₍₁-α/₂)2 x SN (100-SN ) / l2 x P = 220

  • Confidence Level: 95% (Z₍₁-α/₂₎ = 1.96)
  • Expected Sensitivity: 97%
  • Relative Allowable Error: 5% (l = 0.05)
  • Proportion: Based on core outcome occurrence = 0.22
  • Drop-out Rate Assumed: 20%
  • minimum sample size = 264 Reference: Based on data from Dart et al."Validation of a Severity Score for the Assessment of Crotalid Snakebite,1999"

INCLUSION AND EXCLUSION CRITERIA

Inclusion Criteria:

  • All patients 'clinically suspected snakebite'
  • Presenting within 24 hours of the event
  • Age ≥18 years
  • Providing written informed consent

Exclusion Criteria

  • Stings or bites other than snake
  • All patients who received antivenom or blood products at another institute
  • All patients with known hematological malignancies, coagulation disorders, chronic liver or renal failure
  • All patients known to be on warfarin, heparin or any newer oral or injectable anticoagulants
  • Individuals withdrawing a consent later on.

STUDY FLOW AND DATA MANAGEMENT

Study Flow:

Enrollment \& Initial ED Assessment:

History, examination, bite documentation, SSS scoring Baseline labs as per institutional protocol

Monitoring \& Follow-Up Timepoints:

T0: At presentation T+3h, +6h, +12h: Direct proforma, records review T+48h: Medical records Day 30 and Day 42 : Medical records \& telephonic follow-up Outcomes Monitored: Neurotoxicity, haemotoxicity , coagulopathy, local damage, AKI, hypotension No interference with clinical care or treatment decisions.

DATA ANALYSIS PLAN:

Software: SPSS v29 Continuous variables are measured by using Mean+/-SD or median IQR Categorical variables are reported as frequencies and percentages. ROC curve analysis for SSS and mSSS. Logistic regression for mortality. Subgroup and domain-wise analysis.

ETHICAL CONSIDERATIONS:

Ethics approval to be obtained. Informed consent will be ensured. Data anonymized and securely stored. No interference with patient treatment.

02

Conditions studied

  • Snake Bite

Browse trials for

Keywords

  • snakebite
  • antivenom
  • snakebite severety score
  • modified snakebite severety score
03

In context

Snake Bites

38 studies on the registry are indexed under Snake Bites; 11 are open to participants now.

This study's planned enrollment of 220 is above the median of 99 across 19 observational studies indexed under Snake Bites.

Browse Snake Bites studies →

Lead sponsor

Jubilee Mission Medical College and Research Institute is the lead sponsor of 25 studies on the registry; 4 are open to participants now.

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

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No
Sampling method
Probability sample

Study population

All adult patients presenting to the Emergency Medicine Department of Jubilee Mission Medical College with clinically suspected snakebite envenomation will be screened for eligibility. Patients who meet the inclusion criteria and provide written informed consent will be enrolled in the study.

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

  • All patients 'clinically suspected snakebite'
  • Presenting within 24 hours of the event
  • Age ≥18 years
  • Providing written

Exclusion criteria

Exclusion Criteria:

  • Stings or bites other than snake
  • All patients who received antivenom or blood products at another institute
  • All patients with known hematological , coagulation disorders, chronic liver or renal failure
  • All patients known to be on warfarin, heparin or any newer oral or injectable anticoagulants
  • Individuals withdrawing a consent later on.
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.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

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.

05

Study design

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

Groups and cohorts

  • ● All patients 'clinically suspected snakebite' ● Presenting within 24 hours of the event ● Age ≥

    Other: History, examination, bite documentation, SSS scoring,Baseline labs as per institutional protocol

Interventions

  • OtherHistory, examination, bite documentation, SSS scoring,Baseline labs as per institutional protocol

    Following enrollment, an initial clinical assessment will be conducted in the Emergency Department (ED). This includes history taking, physical examination, documentation of bite characteristics, and calculation of the Snakebite Severity Score (SSS) at presentation. Baseline laboratory investigations will be performed as per institutional protocol. All participants will undergo serial clinical and laboratory monitoring as per institutional protocol. The development of syndrome-specific core outcomes, including neurotoxicity, haemotoxicity, coagulopathy, local tissue damage, acute kidney injury, and hypotension (Annexure) would be followed-up and evaluations will be conducted at the following time points: At presentation, Within 3 hours of ED admission, Within 6 hours of ED admission, Within 12 hours of ED admission

06

What researchers measure

Primary outcomes

  1. Performance of the Snakebite Severity Score (SSS) at Emergency Department Presentation in Predicting Syndrome-Specific Core Outcomes

    The performance of the Snakebite Severity Score (SSS), recorded at the time of emergency department presentation, will be assessed for predicting the occurrence of predefined syndrome-specific core outcomes during the follow-up period. The syndrome-specific core outcomes include neurotoxicity, haemotoxicity/coagulopathy, local tissue damage, acute kidney injury, and hypotension, as defined in the study protocol. Performance will be evaluated using the area under the receiver operating characteristic curve (AUC), sensitivity, specificity, positive predictive value (PPV), and negative predictive value (NPV).

    Time frame: SSS assessed at emergency department presentation; syndrome-specific core outcomes assessed from presentation through 30 days

Secondary outcomes

  1. Performance of the Snakebite Severity Score (SSS) at Emergency Department Presentation in Predicting All-Cause Mortality Within 6 Weeks

    The performance of the Snakebite Severity Score (SSS), recorded at the time of emergency department presentation, will be assessed for predicting all-cause mortality during the 6-week follow-up period. Performance will be evaluated using the area under the receiver operating characteristic curve (AUC), sensitivity, specificity, positive predictive value (PPV), and negative predictive value (NPV).

    Time frame: SSS assessed at emergency department presentation; all-cause mortality assessed through 6 weeks

  2. Performance of the Modified Snakebite Severity Score (mSSS) at Emergency Department Presentation in Predicting Syndrome-Specific Core Outcomes Within 30 Days

    The performance of the Modified Snakebite Severity Score (mSSS), calculated at the time of emergency department presentation, will be assessed for predicting the occurrence of predefined syndrome-specific core outcomes during the 30-day follow-up period. The syndrome-specific core outcomes include neurotoxicity, haemotoxicity/coagulopathy, local tissue damage, acute kidney injury, and hypotension, as defined in the study protocol. Performance will be evaluated using the area under the receiver operating characteristic curve (AUC), sensitivity, and specificity.

    Time frame: mSSS assessed at emergency department presentation; syndrome-specific core outcomes assessed through 30 days

07

Study locations

1 of 1 sites recruiting
  • Jubilee Medical Mission and Research Institute
    Thrissur, Kerala 680005, India
    Recruiting
08

References and documents

Individual participant data

Plan to share: Undecided

No publications or documents are linked to this record.

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reached

Started Jun 2025 (actual). Primary completion is estimated for Jul 2027, 25 months after the start.

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

Registered
Jul 13, 2025
First posted
Jul 22, 2025
StartActual
Jun 14, 2025
Primary completionEst.
Jul 30, 2027
CompletionEst.
Jul 30, 2027
Last update
Aug 18, 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 Aug 18, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT07079137
Lead sponsor
Jubilee Mission Medical College and Research Institute
Responsible party
Dr Feba Susan Kurian (Junior Resident, Jubilee Mission Medical College and Research Institute) — Principal investigator
First posted
Jul 22, 2025
Start date
Jun 14, 2025
Primary completion
Jul 30, 2027 (estimated)
Completion
Jul 30, 2027 (estimated)
Last update
Aug 18, 2026

Study contacts

Feba Susan Kurian, MBBS
Contact
febasusankurian1999@gmail.com
919061984552

Oversight

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

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