Treatments and Clinical Trials Treatment Therapies Enzyme replacement therapies have been approved for several of the MPS diseases. Clinical Trials Read about clinical trials for MPS diseases in progress or soon to begin.  Additional information about clinical trials can be found at www.clinicaltrials.gov. Palliative Care Palliative care is any form of medical care or treatment that concentrates on reducing the severity of disease symptoms. Resources Treatment information and insurance counseling is available through the pharmaceutical companies producing the enzyme replacement therapies.