Query on meta values and post title

I need some help with my search function.
What I want is a search function that search on the post title and on my meta values.

The meta values works but how can I add the post title to this query?

//Arguments for searchquery
$args = array(
    'post_type'     => 'catalog',
    'meta_query'    => array(
        array('key' => 'catalog_item_creator', 'value' => $_GET['searchtext'], 'compare' => 'LIKE'),
        array('key' => 'catalog_item_sku', 'value' => $_GET['searchtext'], 'compare' => 'LIKE'),
        'relation' => 'OR'
    )
);
$the_query = new WP_Query($args);