NCT04814654Completed
CHALO! 2.0: A Mobile Technology Based Intervention to Accelerate HIV Testing and Linkage to Preventive Treatment.
Source: ClinicalTrials.gov · Last updated 20 Jan 2026
Brief summary (registry, in English)
While HIV prevalence among Men Seeking Men (MSM) in India is 10-15 times higher than in the general population (4.3% vs 0.3%), current interventions for Indian MSM have limited reach. In order to reduce the burden of HIV in MSM, innovative, far-reaching prevention and treatment strategies are needed. Guided by the increase access to internet-based social and mobile technologies (SMT) (e.g., SMS, WhatsApp, dating apps) globally and in India, this is a 3-arm parallel, pragmatic randomized controlled trial of community-developed, theory based behavioral intervention (CHALO! 2.0) delivered via WhatsApp (secure SMS application) compared to an Attention-Matched Control, or a Digital Coupon for free HIV testing only control conditions. The primary outcomes are HIV-testing at 6 months (3 months after the end of the intervention) and linkage-to-preventive care (counseling or pre-exposure prophylaxis) at 12 months. The secondary outcomes are the frequency of HIV-testing by 18 months.
- Status (registry)
- Completed
- Study type
- Interventional
- Enrollment
- 1004 (actual)
- First submitted
- 15 Mar 2021
- Start date
- 22 Apr 2022
- Primary completion date
- 27 Jun 2024
- Lead sponsor
- Albert Einstein College of Medicine
- Diseases
- HIV
- NCT number
- NCT04814654
What you commit to
- Study type: Interventional
- Participants enrolled: 1004
- From 22 Apr 2022 to the primary completion date, 27 Jun 2024
- 1 site in 1 country
- Visits and tests: ask the trial team, the registry does not list them
Built from the registry fields of ClinicalTrials.gov. It describes the study, not your situation.
Who cannot take part
Copied verbatim from ClinicalTrials.gov and grouped by topic. Only the trial team decides who can take part.
Prior treatment
- participating in a concurrent HIV-related study
Other
- intention to move out of the Mumbai metropolitan area in the next six months
Who the study is looking for
- live or work in Mumbai or Thane
- fluent in Hindi or English
- have had anal sex with men in the past one year
- report that they have either never been tested for HIV, are unaware of HIV test results, or are HIV-negative with last HIV test at any time, and have engaged in anal sex since last HIV test
- able to provide and verify a WhatsApp mobile number and email address
- willing to answer online surveys for 18 months
Age in the registry: 18 years to - · Sex: Male · Accepts healthy volunteers
Sites (1)
Sites in registry order. Pick your city on the disease page to sort them by distance.
| Site | City | Country | Site status |
|---|---|---|---|
| The Humsafar Trust Coordinator of this site? Confirm its status | Mumbai | India | Unknown status |
This page is information, not medical advice. Discuss any trial with your doctor.