Former Saatchi & Saatchi chief executive left the agency in June.
The set-up includes expansion plans in Asia Pacific, with rollout due in 2025.
Campaign was created by BBC Creative.
The campaign draws on more than 300 stories from women across Kenya, Indonesia, Nepal, Nigeria and Uganda, capturing their lived experiences and demands for better healthcare.
Half of brands also shared they're planning to change contracts with agencies to address legal, ethical and reputational risks.
Publicis leads the pack, while WPP and Dentsu face challenges amid market shifts and client cutbacks.
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