IDG Ventures India has returned to back an IFC-led series D round for Lenskart, the eyewear retailer that previously operated as Valyoo Technologies.

WuXi PharmaTech, Novartis, Celgene and Alexandria Real Estate have contributed to an oversubscribed series A round for immuno-oncology startup Ideaya.

Healthcare-focused venture capital firm Heritage Group has closed $220m for its latest Healthcare Innovation Fund, having received investments from 15 care systems.

Applied Materials returned to back the Boston spinout's series C round, following its participation in a $9.3m series B in March 2015.

Tolero Pharmaceuticals and Applied Materials returned to back RayVio's series C round, following their participation in a $9.3m series B in March 2015.

The gene editing company expects to raise up to $90m, while Novartis and Regeneron are set to invest $55m through private placements.

Fidelity-backed Stemcentrx, which emerged from stealth in September at a $5bn valuation, will be acquired for $5.8bn in cash and stock, and up to $4bn in milestone payments.

The immuno-oncology startup, formed after its Celgene-backed predecessor Flexus was bought for $1.25bn last year, has revealed $79m of financing across two rounds.

The Google Glass-equipped medical chart technology developer increased its total funding to $40m in a round featuring five healthcare systems.