ClinicalTrials.gg
CompletedNCT04008134CHoBI7Updated Feb 10, 2022

Cholera-Hospital-Based-Intervention-for-7-days

An interventional study of CHoBI7 health facility program and CHoBI7 mHealth program in Cholera, Diarrhea and Stunting, sponsored by Johns Hopkins Bloomberg School of Public Health. Completed. Per ClinicalTrials.gov, last updated 2022-02-10.

Sponsored by Johns Hopkins Bloomberg School of Public Health · Not applicable, Interventional, and Prevention

From the registry’s dates

  • Registered 2 years 6 months after the study started (first participant enrolled Dec 2016, registered Jul 2019).
Phase
Not applicable
Study type
Interventional
Enrollment
2,626
Allocation
Randomized
Sex
All
01

Study summary

The Cholera Hospital Based Intervention for 7 Days (CHoBI7) randomized controlled trial for transition to scale aimed to: (1) Develop and evaluate scalable approaches to integrate the CHoBI7 intervention into the services provided for hospitalized diarrhea patients at health facilities in Bangladesh; and (2) Evaluate the ability of the CHoBI7 intervention to lead to a sustained uptake of the promoted hand washing with soap and water treatment behaviors and significant reductions in diarrheal disease over time.

Read the detailed description

The findings from the recent randomized controlled trial of The Cholera Hospital Based Intervention for 7 Days (CHoBI7) demonstrated that this intervention was effective in significantly reducing symptomatic cholera infections in intervention households, and had significant sustained impacts on hand washing with soap behaviors and improved water quality 12 months post intervention. Next steps to transition to scale were: (1) Develop and evaluate scalable approaches to integrate the CHoBI7 intervention into the services provided for hospitalized diarrhea patients at health facilities in Bangladesh; and (2) Evaluate the ability of the CHoBI7 intervention to lead to a sustained uptake of the promoted hand washing with soap and water treatment behaviors and significant reductions in diarrheal disease over time.

02

Conditions studied

  • Cholera
  • Diarrhea
  • Stunting

Keywords

  • handwashing with soap
  • water treatment
  • behavior change
  • water, sanitation and hygiene
03

In context

Cholera

83 studies on the registry are indexed under Cholera; 16 are open to participants now.

This study's enrollment of 2,626 is above the median of 262 across 72 interventional studies indexed under Cholera.

Browse Cholera studies →

Lead sponsor

Johns Hopkins Bloomberg School of Public Health is the lead sponsor of 371 studies on the registry; 42 are open to participants now.

Of its 5 completed or terminated interventional studies of FDA-regulated products, 3 (60%) have results posted.

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

04

Who can participate

Ages eligible
Child (0–17), Adult (18–64), Older adult (65+)
Sexes eligible
All
Accepts healthy volunteers
Yes

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

Diarrhea patients will be defined as patients having acute watery diarrhea three or more loose stools over a 24-hour period in the past three days. Diarrhea patients admitted to ICDDRB Dhaka Hospital or Mugda General Hospital will be eligible for the trial if:

  1. have had 3 or more loose stools over the past 24 hours
  2. plan to reside in Dhaka for the next 12 months
  3. have no basin for running water in their home
  4. have a child under five years of age in their household (including themselves) that produced a stool sample at baseline
  5. have a working mobile phone in the household.

Household members of the diarrhea patient will be eligible for the trial if:

  1. they have shared the same cooking pot and resided in the same home with the diarrhea patient for the last three days
  2. plan to reside in their current household with the diarrhea patient for the next 12 months

Exclusion criteria

Exclusion Criteria:

(1) Children in foster care will be excluded from all research study activities.

05

Study design

Phase
Not applicable
Primary purpose
Prevention
Allocation
Randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
2,626 participants (actual)

Study arms

  • No intervention
    Standard recommendation (ORS)

    Participants received the standard recommendation on oral rehydration solution use

  • Experimental
    mHealth with no home visits

    Participants received the health facility delivery of CHoBI7, plus bi-weekly mHealth (voice and text) reminders for 12 months

    Behavioral: CHoBI7 health facility program · Behavioral: CHoBI7 mHealth program

  • Experimental
    mHealth with home visits

    Participants received the health facility delivery of CHoBI7, plus two home visits and bi-weekly mHealth (voice and text) reminders for 12 months

    Behavioral: CHoBI7 health facility program · Behavioral: CHoBI7 mHealth program · Behavioral: CHoBI7 home visit program

Interventions

  • BehavioralCHoBI7 health facility program

    The CHoBI7 health facility program focuses on promoting handwashing with soap and water treatment to diarrhea patients and their household members during the one-week period after the patient is admitted to the health facility, when their household is at highest risk for diarrheal diseases. The CHoBI7 program includes: (1) a WASH pictorial module delivered by a health worker bedside to diarrhea patient and their household members in a health facility on handwashing with soap, water treatment, and safe water storage; and (2) a diarrhea prevention package containing chlorine tablets for water treatment, a soapy water bottle (water and detergent powder), a handwashing station, and a water vessel with a lid and tap for safe drinking water storage. Households are instructed to boil their water once their supply of chlorine tablets is completed.

  • BehavioralCHoBI7 mHealth program

    The CHoBI7 mHealth (mobile health) program targets five key behaviors: (1) preparing soapy water using water and detergent powder; (2) handwashing with soap at food and stool related events; (3) treating household drinking water using chlorine tablets during the one week high risk period after the diarrhea patient in the household was admitted to the health facility; (4) safe drinking water storage in a water vessel with a lid and tap; and (5) heating of household drinking water until it reaches a rolling boil after the one week high risk period. Participant households receive bi-weekly voice and text messages from the CHoBI7 mHealth program over a 12-month period. These mobile messages are sent using the VIAMO platform (www.viamo.io).

  • BehavioralCHoBI7 home visit program

    The CHoBI7 home visit program involves two, 30-minute home visits conducted during the week after the index diarrhea patient was recruited at the health facility. A health worker reinforces the content of the CHoBI7 health facility program in the participant's home.

06

What researchers measure

Primary outcomes

  1. Diarrhea prevalence among children under 2 years of age

    Diarrhea prevalence among children under 2 years of age assessed by caregiver self report over a 12-month period

    Time frame: 12 months

  2. Diarrhea prevalence among children under 5 years of age

    Diarrhea prevalence among children under 5 years of age assessed by caregiver self report over a 12-month period

    Time frame: 12 months

  3. Diarrhea prevalence among all household members

    Diarrhea prevalence among all household members assessed by self report over a 12-month period

    Time frame: 12 months

Secondary outcomes

  1. Diarrhea prevalence among participants ages 5-9 years

    Diarrhea prevalence among all household members ages 5-9 years assessed by self report over a 12-month period

    Time frame: 12 months

  2. Diarrhea prevalence among participants ages 10-18 years

    Diarrhea prevalence among all household members ages 10-18 years assessed by self report over a 12-month period

    Time frame: 12 months

  3. Diarrhea prevalence among participants ages greater than 18 years

    Diarrhea prevalence among all household members ages greater than 18 years assessed by self report over a 12-month period

    Time frame: 12 months

  4. Handwashing with soap

    Household members handwashing with soap at food and stool related events assessed by 5-hour structured observation over a 12-month period

    Time frame: 12 months

  5. Household drinking water treatment

    Households with stored drinking water samples without detectable E.coli (\<1 colony forming units / 100 ml) assessed by unannounced household visits for sample collection of household stored drinking water over a 12-month period

    Time frame: 12 months

  6. Height-for-age among children under 2 years of age

    Height, weight and age measurements among children under 2 years of age assessed over a 12-month period were used to calculate height-for-age z-scores according to the World Health Organization child growth standards

    Time frame: 12 months

  7. Height-for-age among children under 5 years of age

    Height, weight and age measurements among children under 5 years of age assessed over a 12-month period were used to calculate height-for-age z-scores according to the World Health Organization child growth standards

    Time frame: 12 months

  8. Weight-for-age among children under 2 years of age

    Height, weight and age measurements among children under 2 years of age assessed over a 12-month period were used to calculate weight-for-age z-scores according to the World Health Organization child growth standards

    Time frame: 12 months

  9. Weight-for-age among children under 5 years of age

    Height, weight and age measurements among children under 5 years of age assessed over a 12-month period were used to calculate weight-for-age z-scores according to the World Health Organization child growth standards

    Time frame: 12 months

  10. Weight-for-height among children under 2 years of age

    Height, weight and age measurements among children under 2 years of age assessed over a 12-month period were used to calculate weight-for-height z-scores according to the World Health Organization child growth standards

    Time frame: 12 months

  11. Weight-for-height among children under 5 years of age

    Height, weight and age measurements among children under 5 years of age assessed over a 12-month period were used to calculate weight-for-height z-scores according to the World Health Organization child growth standards

    Time frame: 12 months

07

Study locations

No study locations are listed for this record.

08

References and documents

Publications

  • George CM, Monira S, Zohura F, Thomas ED, Hasan MT, Parvin T, Hasan K, Rashid MU, Papri N, Islam A, Rahman Z, Rafique R, Islam Bhuyian MS, Saxton R, Labrique A, Alland K, Barman I, Jubyda FT, Afroze F, Sultana M, Johura FT, Khan MAH, Tahmina S, Munmun F, Sack DA, Perin J, Alam M. Effects of a Water, Sanitation, and Hygiene Mobile Health Program on Diarrhea and Child Growth in Bangladesh: A Cluster-randomized Controlled Trial of the Cholera Hospital-based Intervention for 7 Days (CHoBI7) Mobile Health Program. Clin Infect Dis. 2021 Nov 2;73(9):e2560-e2568. doi: 10.1093/cid/ciaa754. PubMed 32761174 ↗
  • George CM, Bhuyian MSI, Thomas ED, Parvin T, Monira S, Zohura F, Hasan MT, Tahmina S, Munmun F, Sack DA, Perin J, Alam M. Psychosocial Factors Mediating the Effect of the CHoBI7 Mobile Health Program on Handwashing With Soap and Household Stored Water Quality: A Randomized Controlled Trial. Health Educ Behav. 2022 Apr;49(2):326-339. doi: 10.1177/1090198120987134. Epub 2021 May 5. PubMed 33949243 ↗
  • George CM, Zohura F, Teman A, Thomas E, Hasan T, Rana S, Parvin T, Sack DA, Bhuyian SI, Labrique A, Masud J, Winch P, Leontsini E, Zeller K, Begum F, Khan AH, Tahmina S, Munum F, Monira S, Alam M. Formative research for the design of a scalable water, sanitation, and hygiene mobile health program: CHoBI7 mobile health program. BMC Public Health. 2019 Jul 31;19(1):1028. doi: 10.1186/s12889-019-7144-z. Erratum In: BMC Public Health. 2019 Aug 19;19(1):1134. doi: 10.1186/s12889-019-7477-7. PubMed 31366398 ↗
  • Thomas ED, Zohura F, Hasan MT, Rana MS, Teman A, Parvin T, Masud J, Bhuyian MSI, Hossain MK, Hasan M, Tahmina S, Munmun F, Khan MAH, Monira S, Sack DA, Leontsini E, Winch PJ, Alam M, George CM. Formative research to scale up a handwashing with soap and water treatment intervention for household members of diarrhea patients in health facilities in Dhaka, Bangladesh (CHoBI7 program). BMC Public Health. 2020 Jun 1;20(1):831. doi: 10.1186/s12889-020-08727-0. PubMed 32487209 ↗
  • Masud J, Islam Bhuyian MS, Kumar Biswas S, Zohura F, Perin J, Papri N, Dil Farzana F, Parvin T, Monira S, Alam M, George CM. Diarrhoeal disease knowledge among diarrhoea patient housholds: findings from the randomised controlled trial of the Cholera-Hospital-Based-Intervention-for-7-days (CHoBI7) mobile health program. Trop Med Int Health. 2020 Aug;25(8):996-1007. doi: 10.1111/tmi.13415. Epub 2020 Jul 21. PubMed 32406989 ↗
  • Islam Bhuyian MS, Saxton R, Hasan K, Masud J, Zohura F, Monira S, Kumar Biswas S, Tasdik Hasan M, Parvin T, Minhaj I, Md Zillur Rahman K, Papri N, Rashid MU, Sharin L, Teman A, Thomas ED, Alland K, Labrique A, Sack DA, Perin J, Alam M, George CM. Process evaluation for the delivery of a water, sanitation and hygiene mobile health program: findings from the randomised controlled trial of the CHoBI7 mobile health program. Trop Med Int Health. 2020 Aug;25(8):985-995. doi: 10.1111/tmi.13414. Epub 2020 Jul 18. PubMed 32406965 ↗
  • Zohura F, Bhuyian MSI, Saxton RE, Parvin T, Monira S, Biswas SK, Masud J, Nuzhat S, Papri N, Hasan MT, Thomas ED, Sack D, Perin J, Alam M, George CM. Effect of a water, sanitation and hygiene program on handwashing with soap among household members of diarrhoea patients in healthcare facilities in Bangladesh: a cluster-randomised controlled trial of the CHoBI7 mobile health program. Trop Med Int Health. 2020 Aug;25(8):1008-1015. doi: 10.1111/tmi.13416. Epub 2020 Jul 14. PubMed 32406581 ↗
  • George CM, Perin J, Parvin T, Bhuyian S, Thomas ED, Monira S, Zohura F, Hasan T, Sack D, Alam M. Effects of a Water, Sanitation and Hygiene Mobile Health Program on Respiratory Illness in Bangladesh: A Cluster-Randomized Controlled Trial of the CHoBI7 Mobile Health Program. Am J Trop Med Hyg. 2022 Jan 10;106(3):979-984. doi: 10.4269/ajtmh.21-0679. PubMed 35008045 ↗

Individual participant data

Plan to share: No

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reached

Ran from Dec 2016 to primary completion in Apr 2019, 28 months.

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

Registered
Jul 2, 2019
First posted
Jul 5, 2019
StartActual
Dec 4, 2016
Primary completionActual
Apr 26, 2019
CompletionActual
Apr 26, 2019
Last update
Feb 10, 2022
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 Feb 10, 2022, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT04008134
Responsible party
Sponsor
First posted
Jul 5, 2019
Start date
Dec 4, 2016
Primary completion
Apr 26, 2019
Completion
Apr 26, 2019
Last update
Feb 10, 2022

Study contacts

Christine Marie George, PhD
principal investigator · Johns Hopkins Bloomberg School of Public Health

Oversight

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

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This study is completed, as verified in Jan 2022. You cannot join it, but the record below documents what was studied.

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