Scientists at the ICR were instrumental in the development of one of the world's most widely used anti-cancer drugs, carboplatin (Paraplatin). Carboplatin’s development began in 1970 after scientists in the United States discovered that the platinum-based compound cisplatin was effective against many tumours – but had serious side-effects. A team of ICR and RMH scientists and clinicians including Professors Kenneth Harrap and Tom Connors, Hilary Calvert and Hospital Consultant Eve Wiltshaw recognised its potential but also the need for a less toxic alternative. In collaboration with the chemical and precious metal company Johnson Matthey plc the ICR scientists evaluated some 300 different platinum-containing molecules and developed a series of second-generation compounds, of which carboplatin was selected as the lead. The first clinical trial of carboplatin was carried out in 1981 and it was launched commercially as Parplatin (manufactured by Bristol-Myers) in 1986. As of 2012 carboplatin is in use for a range of cancers including ovarian and lung. For the development of these platinum-based anticancer drugs the ICR, together with The Royal Marsden Hospital and Johnson Matthey plc, received the Queen’s Award for Technological Achievement in 1991.