Severe combined immunodeficiency (SCID): US-approved treatments and how Gulf families can access them

Reviewed by the Reserve Meds clinical operations team on 17 October 2026.

What is severe combined immunodeficiency (SCID)?

Severe combined immunodeficiency (SCID) is a group of inherited disorders in which babies lack the immune cells needed to fight bacteria, viruses and fungi. Without treatment, infants develop poor growth, chronic diarrhea, thrush, skin rashes and life-threatening infections.^[1]

SCID has several genetic causes. X-linked SCID affects almost only boys. Adenosine deaminase (ADA) deficiency causes SCID in about 80 percent of people with that enzyme deficiency, and these babies usually develop health problems in the first 6 months of life.^{[1, 2]}

SCID can be detected shortly after birth by newborn screening, which allows prompt treatment, often a stem cell transplant. In the US, an enzyme replacement therapy is approved for ADA-SCID.^{[1, 3]}

Severe combined immunodeficiency (SCID) in the Gulf

The Kuwait National Primary Immunodeficiency Registry recorded 314 patients from 2004 to 2018. Disorders affecting cellular and humoral immunity, the group that includes SCID, were the largest category (31.8%), and the average delay in diagnosis was 27 months.^[4]

US FDA-approved medicines for severe combined immunodeficiency (SCID)

Each medicine below is approved in the US for a specific group of patients. The wording summarizes the current US label. Your specialist decides whether any of them is right for the patient.

• Revcovi (elapegademase-lvlr)
  FDA-approved for adenosine deaminase severe combined immune deficiency (ADA-SCID) in children and adults. It is an enzyme replacement given by injection into the muscle.^[3]
  Gulf registers: Saudi Arabia: not found by brand name in the SFDA drugs list. Abu Dhabi: not found by brand name in the Abu Dhabi DoH drug code list. Checked 17 October 2026. UAE federal status, Kuwait, Qatar, Bahrain and Oman: not verified in a public register.^{[5, 6]}

How families in the Gulf can access these medicines

If it is not registered. The usual legal route is a named-patient request: the treating hospital, on your specialist's written request, asks the national regulator for permission to import the medicine for one patient, using the US FDA approval as the reference. In Saudi Arabia the SFDA Special Access Program guidance covers these requests; in Bahrain, NHRA Circular 41 of 2020 sets the procedure. Other Gulf countries have their own procedures, which the hospital pharmacy confirms.^{[7, 8]} Once approval is in place, Reserve Meds arranges supply through a US-licensed pharmaceutical wholesale partner to the hospital pharmacy.

Who does what

• Your treating specialist decides whether a medicine is right for the patient and writes the letter.
• The hospital checks local supply, files any import request, and gives the treatment safely.
• The national regulator decides whether to approve the import of a medicine that is not registered.
• The manufacturer decides where its medicine can be supplied, especially for cell and gene therapies.
• Reserve Meds helps organize records, coordinates US supply through our wholesale partner, shipping and updates to your family. We do not give medical advice.

Documents you will usually need

• A letter from the treating specialist with the diagnosis, past treatments and why the medicine is being considered
• Reports that confirm the diagnosis, such as laboratory, genetic, imaging or pathology results, translated into English where needed
• Recent clinic notes and a list of current medicines
• For a hospital import request: the prescription, the hospital's request form and the written consent of the patient or guardian
• Proof of the US FDA approval and the US prescribing information (we can supply these)

We give you a written timeline estimate once we see the hospital file. The regulator, the treatment center and the manufacturer set their own timelines.

What treatment costs

Quote on request. Your total cost depends on the medicine, the dose, shipping, import steps and coordination. Your coordination fee is quoted in writing for your case before you commit. No hidden charges.

How Reserve Meds helps

Reserve Meds is a digital health company. Medicines are supplied through a US-licensed pharmaceutical wholesale partner. We help your doctor and hospital prepare the file, arrange US supply and temperature-controlled shipping once approval is in place, and keep your family updated. We coordinate access to FDA-approved medicines only. Investigational medicines are only available through a manufacturer's expanded-access program requested by the treating physician; we can explain that route, but we do not supply them.

Sources for the last two answers: ^{[1] [3]}

Related

• Sickle cell disease
• Thalassemia
• Named-patient access in the Gulf, explained
• Answers to common access questions
• Cross-border disclosures
• اقرأ هذه الصفحة بالعربية

This page is general health information, not medical advice. It does not replace a consultation with your doctor.