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NCT Number: NCT07234617

Public Policy Evaluation: the Case of the Green Prescription

Numerous studies have highlighted the harmful effects of pesticide exposure during the prenatal period. Food is one of the main vectors of exposure to pesticides, particularly glyphosate, which is the most widely used herbicide. Observational studies have highlighted their effects on health, but few interventional studies have been conducted to identify effective interventions to reduce or eliminate environmental risks. In 2022, the City of Strasbourg implemented the "Ordonnance Verte" (Green Prescription) program, giving all pregnant women in the city access to a weekly basket of organic and local vegetables for several months, as well as awareness-raising workshops on endocrine disruptors and healthy eating. The objective of this study is to assess whether this type of program reduces pregnant women's exposure to pesticides compared to women who continue to eat according to their usual habits. If conclusive, this type of assessment would play a key role in facilitating the rollout of similar initiatives on a larger scale and protecting the health of pregnant women and future children.

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Key information

Conditions

Pregnancy

Age range

18 year and older

Sex eligibility

Female

Study type

Interventional

Phase

Not applicable

Primary location

Hôpitaux Universitaires de Strasbourg

Strasbourg, 67000, France

Location status: Recruiting

Location contact

Virginie COLLIN-BUND, MD

CONTACT

[email protected]

+33 3 88 12 63 41

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Be a woman
  • Be less than 32 weeks pregnant
  • Be registered with the "Ordonnance Verte" program
  • Have agreed, when registering for the program, to be contacted by a research team
  • Be affiliated with a social security system or be a beneficiary of such a system.
  • Be fluent in French.
  • Be over 18 years of age
  • Be able to understand the objectives and risks associated with the research and give dated and signed informed consent
  • Have a telephone and internet access

Exclusion criteria

  • Participation in a study on nutrition or any other studies likely to affect exposure to the compounds under investigation
  • Inability to provide informed consent (difficulties in understanding on the part of the pregnant woman, etc.)
  • Being under judicial protection
  • Being under guardianship or conservatorship
  • Working in the agricultural sector (farmer, employee, apprentice)
  • Living with someone who works in the agricultural sector (farmer, employee, apprentice)

Treatment and study plan

Consumption of organic vegetables

Behavioral

Consumption of organic vegetables or non-organic for control group (according to their usual habits) for 2 weeks

Primary outcomes

  1. Change in urinary pesticide concentrations over the two-week study period in the intervention group

    Time frame: Day 0 and at 2 weeks

    Measured as the difference in pesticide levels before and after the intervention

  2. Difference in urinary pesticide concentrations between the two groups

    Time frame: Day 0 and at 2 weeks

    Measured as the difference in pesticide levels in intervention vs. control groups

Study contacts

Contact information is provided by the study sponsor or research team.

Virginie COLLIN-BUND, MD

CONTACT

[email protected]

+33 3 88 12 63 41

Sponsors and collaborators

Lead sponsor

University Hospital, Strasbourg, France

Other

Registry information

Official study title

Evaluating Public Policy: A Case Study of the Green Prescription POLVERT (Green Policy - Evaluation and Results)

Acronym: POLVERT

Important dates

Study start
2025
Primary completion
2027
Study completion
2027
First posted
Nov 18, 2025
Registry last updated
Nov 19, 2025

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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