How to get the meta title of a page configured as blog (loop)

Ok, I found the method by myself. This is the code:

//...
elseif (is_page() || is_single()) { //Page and Post Title
    global $post;
    $metatitle = get_post_meta($post->ID, 'metatitle_value_key', true);
    if ($metatitle) {
        echo stripslashes($metatitle);
    } else {
        the_title();
    }
}  elseif (is_home()) { //Using is_home for the blog page

    //And using get_queried_object        
    $page_object = get_queried_object();
    $metatitle = get_post_meta($page_object->ID, 'metatitle_value_key', true);
    if ($metatitle) {
        echo stripslashes($metatitle);
    } else {
        the_title();
    }
}
//...