Introducing one.click™
one.click™ is a new generation autoinjector and the only device of its kind available for convenient, quick and easy growth hormone delivery.

How does one.click™ work?
Unlike other pen injectors available on the market and conventional syringes where the needle must first be inserted under the skin followed by the injection itself, one.click™ combines these two steps in one simple click.
What’s so good about autoinjection?
Simultaneous needle penetration and growth hormone delivery minimises both the pain and injection time of growth hormone administration. Almost twice as many children reported experiencing NO pain when using an autoinjector such as one.click™ compared with using a conventional syringe44.

What does this mean to me?
- Precision: Autoinjection ensures that the needle is correctly inserted and that your dose of growth hormone is correctly administered at each injection. One study reported important advantages of autoinjection over manual injection in terms of both precision and pain experienced44.
- Hidden needle: The one.click™ needle is hidden from view before injection, making it the perfect device for those who are anxious about needles. Furthermore, one.click™ has an automatic needle shield movement which removes the inner needle shield from the needle automatically before injection reducing the risk of needle stick injury. Nearly two-thirds of people responding to our survey said that the reduction in child anxiety due to the hidden needle was an important advantage44.
- Simple to use: 90% of users responding to a Merck Serono survey found setting the dose, administering the growth hormone and releasing the needle from the skin simple with autoinjectors like one.click™44.
- Convenient: In addition to the benefits of the device itself, growth hormone treatment is even more convenient with one.click™. Unlike other recombinant growth hormones, Merck Serono’s growth hormone can be stored and transported at room temperature before it is reconstituted. Preparation of growth hormone for use is made easy with click.easy® Merck Serono’s automatic reconstitution system.
With nearly 20 years of experience in the area of growth hormone treatment Merck Serono has developed one.click™ with usability in mind. one.click™ represents a new generation of autoinjector that is brimming with features that simplify the treatment of growth hormone-related disorders. The proportion of children carrying out aspects of their treatment on their own was higher amongst autoinjector users than amongst those injecting with conventional syringes and needles. Furthermore, 99.2% of children taking part in this study chose to continue using an autoinjector44.
44. Colle, M. Acceptability of the Easject Autoinjector for the Administration of Growth Hormone. Hormone Research 53 (Suppl. 2), P1-143, 143 (2000)