It started an investigation of the Prime Minister of Pakistan, Mr Nawaz Sharif, which subsequently led to his removal from office and then his incarceration.
As the Guardian reported in 2017:
Pakistan’s supreme court has removed the prime minister, Nawaz Sharif, from office in a unanimous verdict over corruption allegations that will further upset the country’s unstable political landscape.
The 10-year disqualification of Sharif cut short the third tenure of a man who has been a leading figure in Pakistani politics for nearly three decades since his first term from 1990 to 1993.
In 2018, that ban was extended to prevent him from holding office for life, according to Reuters:
Pakistan’s Supreme Court disqualified deposed prime minister Nawaz Sharif from holding office for life on Friday amid an ongoing corruption trial and ahead of general elections due this year.
Also in 2018, he was convicted, according to reporting by the International Consortium of Investigative Journalists:
Former Pakistan Prime Minister Nawaz Sharif has been sentenced to 10 years in prison and fined $10.6 million on corruption charges linked to 2016 Panama Papers revelations about his family’s properties overseas.
He's no longer serving his sentence though, according to Wikipedia:
The Islamabad High Court (IHC) granted him bail on humanitarian grounds in October 2019, and Sharif went to London for medical treatment. Later in March, he was granted bail for a period of six weeks by the Supreme Court to continue pursuing his health treatment. After failing to return to Pakistan when his bail expired, the IHC declared him an absconder. He currently faces non-bailable arrest warrants for the Al-Azizia corruption case.