{ "api_version": "1", "request": { "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Control+%28QR%29+Labels", "query": { "intervention": "Control (QR) Labels" }, "page_size": 10 }, "pagination": { "page": 1, "page_size": 10, "total_count": 8, "total_pages": 1, "next_page_url": null, "previous_page_url": null }, "source": "remote", "last_synced_at": "2026-09-03T18:40:46.022Z", "attribution": "Data derived from public ClinicalTrials.gov records. The official record at https://clinicaltrials.gov/ remains the source of truth for current availability, contacts, and full study details.", "notes": [ "This endpoint exposes only public summary fields — no participant contact emails, phone numbers, or scraped investigator contact details.", "For contact information and full protocol detail, follow each trial's `official_url` to the ClinicalTrials.gov record.", "This API is a navigational aid. It does not provide medical advice, eligibility determinations, or compensation guarantees." ], "trials": [ { "nct_id": "NCT06179043", "title": "Impact of Front-of-package Warning Labels on Perceived Weight Stigmatization", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "NA" ], "conditions": [ "Weight Stigma" ], "interventions": [ { "name": "Nutrient warning labels", "type": "BEHAVIORAL" }, { "name": "Text-only health warning labels", "type": "BEHAVIORAL" }, { "name": "Graphic health warning labels", "type": "BEHAVIORAL" }, { "name": "Control labels", "type": "BEHAVIORAL" } ], "intervention_types": [ "BEHAVIORAL" ], "sponsor": "University of North Carolina, Chapel Hill", "sponsor_class": "OTHER", "healthy_volunteers": true, "eligibility": { "minimum_age": "21 Years", "maximum_age": null, "sex": "ALL", "summary": "21 Years and older" }, "enrollment_count": 2522, "start_date": "2024-01-18", "completion_date": "2024-01-26", "has_results": false, 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"intervention_types": [ "BEHAVIORAL" ], "sponsor": "Johns Hopkins Bloomberg School of Public Health", "sponsor_class": "OTHER", "healthy_volunteers": true, "eligibility": { "minimum_age": "18 Years", "maximum_age": null, "sex": "ALL", "summary": "18 Years and older" }, "enrollment_count": 14720, "start_date": "2025-10-09", "completion_date": "2025-11-02", "has_results": false, "last_update_posted_date": "2026-01-07", "last_synced_at": "2026-09-03T18:40:46.022Z", "location_count": 1, "location_summary": "Baltimore, Maryland", "locations": [ { "city": "Baltimore", "state": "Maryland" } ], "official_url": "https://clinicaltrials.gov/study/NCT07214792" }, { "nct_id": "NCT06909019", "title": "MENU Study: Online Experiment", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "NA" ], "conditions": [ "Food Selection" ], "interventions": [ { "name": "Control (QR) Labels", "type": "BEHAVIORAL" }, { "name": "Low Climate Impact Labels", "type": "BEHAVIORAL" }, { "name": 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"conditions": [ "Health Knowledge", "Attitude to Health" ], "interventions": [ { "name": "Menu label", "type": "OTHER" } ], "intervention_types": [ "OTHER" ], "sponsor": "University of California, Davis", "sponsor_class": "OTHER", "healthy_volunteers": true, "eligibility": { "minimum_age": "18 Years", "maximum_age": null, "sex": "ALL", "summary": "18 Years and older" }, "enrollment_count": 1448, "start_date": "2020-11-13", "completion_date": "2020-12-26", "has_results": false, "last_update_posted_date": "2021-01-08", "last_synced_at": "2026-09-03T18:40:46.022Z", "location_count": 1, "location_summary": "Davis, California", "locations": [ { "city": "Davis", "state": "California" } ], "official_url": "https://clinicaltrials.gov/study/NCT04637412" }, { "nct_id": "NCT07536126", "title": "Testing Non-Nutrition Menu Labels on Food Selections", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "NA" ], "conditions": [ "Food Selection" ], "interventions": [ { "name": "Control (QR) Labels", "type": "BEHAVIORAL" }, { "name": "Low Environmental Harm Labels", "type": "BEHAVIORAL" }, { "name": "High Environmental Harm Labels", "type": "BEHAVIORAL" }, { "name": "Environmental Harm Traffic Light Labels", "type": "BEHAVIORAL" }, { "name": "Environmental Grade Labels", "type": "BEHAVIORAL" } ], "intervention_types": [ "BEHAVIORAL" ], "sponsor": "Johns Hopkins Bloomberg School of Public Health", "sponsor_class": "OTHER", "healthy_volunteers": true, "eligibility": { "minimum_age": "18 Years", "maximum_age": null, "sex": "ALL", "summary": "18 Years and older" }, "enrollment_count": 7000, "start_date": "2026-04-13", "completion_date": "2026-05-04", "has_results": false, "last_update_posted_date": "2026-06-12", "last_synced_at": "2026-09-03T18:40:46.022Z", "location_count": 1, "location_summary": "Baltimore, Maryland", "locations": [ { "city": "Baltimore", "state": "Maryland" } ], "official_url": "https://clinicaltrials.gov/study/NCT07536126" }, { "nct_id": "NCT05482204", "title": "Do Sustainability Labels Lead to More Sustainable and Healthier Food Choices?", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "NA" ], "conditions": [ "Food Selection", "Attitude" ], "interventions": [ { "name": "Low Climate Impact label", "type": "OTHER" }, { "name": "High Climate Impact label", "type": "OTHER" } ], "intervention_types": [ "OTHER" ], "sponsor": "Johns Hopkins Bloomberg School of Public Health", "sponsor_class": "OTHER", "healthy_volunteers": true, "eligibility": { "minimum_age": "18 Years", "maximum_age": null, "sex": "ALL", "summary": "18 Years and older" }, "enrollment_count": 5055, "start_date": "2022-03-30", "completion_date": "2022-04-13", "has_results": false, "last_update_posted_date": "2022-08-01", "last_synced_at": "2026-09-03T18:40:46.022Z", "location_count": 1, "location_summary": "Baltimore, Maryland", "locations": [ { "city": "Baltimore", "state": "Maryland" } ], "official_url": "https://clinicaltrials.gov/study/NCT05482204" }, { "nct_id": "NCT06678178", "title": "Climate Impact Label Design and Fast-Food Meal Selection", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "NA" ], "conditions": [ "Food Selection" ], "interventions": [ { "name": "Control (QR) Labels", "type": "BEHAVIORAL" }, { "name": "Warning High Climate Impact Labels", "type": "BEHAVIORAL" }, { "name": "Traffic Light Labels", "type": "BEHAVIORAL" }, { "name": "Climate Grade Labels", "type": "BEHAVIORAL" }, { "name": "Numeric Carbon Footprint Labels", "type": "BEHAVIORAL" } ], "intervention_types": [ "BEHAVIORAL" ], "sponsor": "Johns Hopkins Bloomberg School of Public Health", "sponsor_class": "OTHER", "healthy_volunteers": true, "eligibility": { "minimum_age": "18 Years", "maximum_age": null, "sex": "ALL", "summary": "18 Years and older" }, "enrollment_count": 6622, "start_date": "2024-12-02", "completion_date": "2024-12-06", "has_results": true, "last_update_posted_date": "2026-01-06", "last_synced_at": "2026-09-03T18:40:46.022Z", "location_count": 1, "location_summary": "Baltimore, Maryland", "locations": [ { "city": "Baltimore", "state": "Maryland" } ], "official_url": "https://clinicaltrials.gov/study/NCT06678178" }, { "nct_id": "NCT06651060", "title": "Climate Labels for Restaurant Menus Pilot", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "NA" ], "conditions": [ "Food Selection" ], "interventions": [ { "name": "Menu label", "type": "BEHAVIORAL" } ], "intervention_types": [ "BEHAVIORAL" ], "sponsor": "University of California, Davis", "sponsor_class": "OTHER", "healthy_volunteers": true, "eligibility": { "minimum_age": "18 Years", "maximum_age": null, "sex": "ALL", "summary": "18 Years and older" }, "enrollment_count": 16181, "start_date": "2024-12-23", "completion_date": "2025-02-13", "has_results": false, "last_update_posted_date": "2025-03-21", "last_synced_at": "2026-09-03T18:40:46.022Z", "location_count": 1, "location_summary": "Davis, California", "locations": [ { "city": "Davis", "state": "California" } ], "official_url": "https://clinicaltrials.gov/study/NCT06651060" } ] }