NCT04958577

Brief Summary

This study will evaluate the accuracy of the condition suggestions and urgency advice of the Swahili language Ada symptom assessment application (SAA), when symptoms are input by a lay-person user and a medical professional; these SAA results will then be compared to the condition suggestions and urgency advice of different tiers of doctors and a "gold standard" created by a panel.

Trial Health

43
At Risk

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
109

participants targeted

Target at P50-P75 for all trials

Timeline
Completed

Started Aug 2021

Shorter than P25 for all trials

Geographic Reach
1 country

1 active site

Status
unknown

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

June 30, 2021

Completed
12 days until next milestone

First Posted

Study publicly available on registry

July 12, 2021

Completed
22 days until next milestone

Study Start

First participant enrolled

August 3, 2021

Completed
5 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 17, 2021

Completed
6 months until next milestone

Study Completion

Last participant's last visit for all outcomes

June 1, 2022

Completed
Last Updated

May 17, 2022

Status Verified

May 1, 2022

Enrollment Period

5 months

First QC Date

June 30, 2021

Last Update Submit

May 16, 2022

Conditions

Outcome Measures

Primary Outcomes (1)

  • Accuracy and Comprehensiveness measures of Ada WRA and HDA

    The condition-suggestion accuracy and comprehensiveness of the SAA, evaluated against the gold-standard differential diagnosis determined by the review panel, reported in the context of the accuracy of the usual care health practitioner.

    through study completion, an average of 4 months

Secondary Outcomes (3)

  • Comparison of usual care doctor condition suggestions

    through study completion, an average of 4 months

  • Urgency advice accuracy

    through study completion, an average of 4 months

  • Questionnaire data insights

    through study completion, an average of 4 months

Study Arms (2)

Wing A (Ada WRA)

Patients in this group will be filling out the Ada assessment themselves and then heading to a normal consultation by first the usual care doctor and then the study-provided physician.

Device: Ada Waiting Room App (WRA) and Ada Diagnostic Support Application (HDA)

Wing B (Ada HDA)

Patients in this group will be asked questions from the Ada assessment by a health care practitioner and then heading to a normal consultation by first the usual care doctor and then the study-provided physician.

Device: Ada Waiting Room App (WRA) and Ada Diagnostic Support Application (HDA)

Interventions

This device is a medical device but will be used only observationally--this device takes a patient's symptoms into account by asking questions and gives a ranked list of likely conditions that the patient might have based on the answers to these questions. The assessment report also includes urgency advice levels, that is, which care the patient should proceed to based on the condition suggestions. The WRA is used by the patient directly and the HDA is used by the doctor to ask the questions to the patient.

Wing A (Ada WRA)Wing B (Ada HDA)

Eligibility Criteria

Age2 Months+
Sexall
Healthy VolunteersNo
Age GroupsChild (0-17), Adult (18-64), Older Adult (65+)
Sampling MethodProbability Sample
Study Population

Patients will only be included if they are waiting in the clinic waiting room of the hospital where this study will take place. Inclusion of patients will be monitored throughout the study in order to ensure recruitment of a study sample of patients with a comprehensive spectrum of symptoms constellations and conditions: this is to ensure that this pilot study tests the performance of SAA on a broad range of scenarios. Study recruitment will be carried out to a target of enrolling between 2-5 patients for 10 different body system categories (including at least one adult and one child in each category).

You may qualify if:

  • All patients who enter the clinic and that are willing/able to provide consent will be included, except those who fall under certain conditions listed below

You may not qualify if:

  • Patients with severe injury/illness requiring immediate treatment
  • Patients with traumatic injury (many of these patients require minimal anamnesis, and it is not rational to include them in a pilot study)
  • Patients incapable of completing a health assessment (e.g. due to illiteracy, mental impairment or inebriation or other incapacity).

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Mbagala Rangi Tatu Hospital

Dar es Salaam, Tanzania

Location

Related Publications (2)

  • Schmude M, Salim N, Azadzoy H, Bane M, Millen E, O'Donnell L, Bode P, Turk E, Vaidya R, Gilbert S. Investigating the Potential for Clinical Decision Support in Sub-Saharan Africa With AFYA (Artificial Intelligence-Based Assessment of Health Symptoms in Tanzania): Protocol for a Prospective, Observational Pilot Study. JMIR Res Protoc. 2022 Jun 7;11(6):e34298. doi: 10.2196/34298.

  • Millen E, Salim N, Azadzoy H, Bane MM, O'Donnell L, Schmude M, Bode P, Tuerk E, Vaidya R, Gilbert SH. Study protocol for a pilot prospective, observational study investigating the condition suggestion and urgency advice accuracy of a symptom assessment app in sub-Saharan Africa: the AFYA-'Health' Study. BMJ Open. 2022 Apr 11;12(4):e055915. doi: 10.1136/bmjopen-2021-055915.

Study Design

Study Type
observational
Observational Model
CASE ONLY
Time Perspective
PROSPECTIVE
Sponsor Type
INDUSTRY
Responsible Party
SPONSOR

Study Record Dates

First Submitted

June 30, 2021

First Posted

July 12, 2021

Study Start

August 3, 2021

Primary Completion

December 17, 2021

Study Completion

June 1, 2022

Last Updated

May 17, 2022

Record last verified: 2022-05

Data Sharing

IPD Sharing
Will not share

Locations