If you want to use Zend redirect without using standard redirect function from controller, you can use the below code in any of the plugin or function.
$redirector = Zend_Controller_Action_HelperBroker::getStaticHelper('redirector');
$redirector->gotoUrl('/profile/change-password/')->redirectAndExit();
$redirector = Zend_Controller_Action_HelperBroker::getStaticHelper('redirector');
$redirector->gotoUrl('/profile/change-password/')->redirectAndExit();