E!'s 'I Am Cait' Not Returning for Season 3

James White/E! Entertainment
Caitlyn JennerĀ in a promotional photo for I Am Cait.

Jenner announced the news on her Twitter page Tuesday.

It's the end of the road for I Am Cait.

The Caitlyn Jenner-centered docuseries will not be returning for a third season, Jenner announced Tuesday on Twitter.

Miley Cyrus, Frank Ocean & More Praise Caitlyn Jenner's 'Vanity Fair' Cover

"It's time for the next adventure," she said. "Thank you E! & thank you to the best girlfriends I could ask for!"

Jenner's announcement comes two weeks after RadarOnline.com reported that the series had been canceled.

An E! spokesperson issued the following statement: “We are incredibly proud of the two seasons of I Am Cait, a groundbreaking docuseries that sparked an important and unprecedented global conversation about transgender people, their struggles and triumphs. Caitlyn and E! have mutually decided not to move forward with another season at this time. She will always remain a part of the E! family, and we look forward to continue following her journey as she appears on Keeping Up with the Kardashians.” 

Watch Mariah Carey's Trailer for New Documentary Series 'Mariah's World'

I Am Cait premiered in July 2015, several months after Jenner spoke publicly for the first time about her transition in an April TV interview with Diane Sawyer that nabbed 16.9 million viewers. However, I Am Cait failed to make a big splash when it debuted, attracting just 2.7 million viewers. The second episode fell to 1.3 million viewers.

When the series returned in March for season two, ratings had plummeted to a series low of 745,000 viewers. Season two also brought a creative overhaul to the show, which moved from focusing on Jenner's evolving relationships with her family and friends post-transition to her on a cross-country road trip with several close friends. 

The season two — and now series — finale of I Am Cait aired in April.

Mariah Carey, Laverne Cox Talk Importance of GLAAD at Annual Awards

I Am Cait was one of several Keeping Up With the Kardashians spinoffs. The flagship series, which is currently in its 12th season, has spawned series such as Kourtney and Kim Take New York and the upcoming Rob & Chyna spinoff, centered on Rob Kardashian and his fiance Blac Chyna, which is set to launch on Sept. 11 on E! Like the other Kardashian series, I Am Cait hailed from Bunim/Murray Productions with Gil Goldschein, Jeff Jenkins and Jenner exec producing. 

TV has embraced transgender stories in recent years, both in scripted and unscripted programming. TLC has the docuseries I Am Jazz, which is centered on transgender teen Jazz Jennings. E!'s sister network Oxygen is set to launch the transgender model series Strut later this year. On the scripted side, Transparent has won Jeffrey Tambor an Emmy for his portrayal of a transgender woman. Laverne Cox, a longtime cast member of Orange Is the New Black, will make history later this TV season when her forthcoming CBS legal drama Doubt becomes the first broadcast series to feature a transgender series regular character played by a transgender actor.

For E!, the cancelation comes as the NBCUniversal cabler prepares to launch several high-profile reality series, most notably Mariah Carey's new docuseries, Mariah's World. The network is also diving further in scripted originals with the upcoming third season of The Royals, and the forthcoming drama The Arrangement.

This article was originally reported on The Hollywood Reporter.