Kalshi and Polymarket are expanding prediction-market bets that include clinical trial results, drawing criticism from researchers and patient advocates. NPR reports that clinical trial trading is part of a broader growth in lightly regulated prediction markets that allow wagers on topics ranging from politics to global conflicts. Supporters, including Kalshi, argue that betting can generate a source of information about which drugs may receive approval and which trial outcomes appear most promising. Kalshi’s spokesman says the idea could help investors and others decide what research to fund, and he contrasts it with stock markets that can profit from clinical trial failures but do not provide useful input for researchers.
Researchers dispute that benefit and warn that financial incentives tied to wagers could undermine trial integrity. They argue that people connected to trials—including investigators, coordinators, and sometimes participants—could influence variables that affect outcomes, creating risks of tampering or insider trading. A biotech researcher who started a petition calls the practice a threat to trust in biotechnology, and a radiation oncology professor at Mayo Clinic agrees that clinical trials differ from other settings where prediction markets merely aggregate information.
Kalshi and Polymarket also argue that their markets can help patients track trial options and access transparent data about probabilities.