How to Plan a PGT Cycle Timeline in Thailand

If you are considering preimplantation genetic testing (PGT) as part of your IVF journey in Thailand, understanding the timeline can help you plan your travel, work, and expectations. A PGT cycle involves several stages, from ovarian stimulation to embryo biopsy and genetic analysis. While each clinic and individual case is unique, this guide provides a general overview of the steps and the time typically involved. Remember, your specific timeline will depend on your medical history, your clinic’s protocols, and the type of genetic testing you undergo.

At a Glance: Key Stages of a PGT Cycle

• Initial consultation and testing: Medical review, blood work, and ultrasound to assess your baseline.
• Ovarian stimulation: Daily hormone injections for about 10-14 days to stimulate multiple follicles.
• Egg retrieval: A minor surgical procedure under sedation to collect eggs.
• Fertilization and embryo culture: Eggs are fertilized with sperm, and embryos develop in the lab for about 5-6 days.
• Embryo biopsy: A few cells are removed from each embryo for genetic testing.
• Genetic testing: The biopsy samples are sent to a lab for analysis, which can take several days to weeks.
• Embryo transfer: A healthy embryo is transferred to the uterus, typically in a subsequent cycle.

Step 1: Initial Consultation and Pre-Treatment Testing

Before starting a PGT cycle, you will have a consultation with your fertility specialist. This may be done in person or via telemedicine. The doctor will review your medical history, previous fertility treatments, and any genetic concerns. You will likely undergo blood tests, an ultrasound, and possibly a semen analysis if using a male partner’s sperm. This step is crucial for tailoring your treatment plan.

Time to plan: This can be done weeks or months before your cycle. Some clinics may require you to complete certain tests in your home country, while others will arrange them upon arrival in Thailand.

Step 2: Ovarian Stimulation

Once your baseline tests are complete, you will begin ovarian stimulation. This involves daily hormone injections to encourage your ovaries to produce multiple eggs. The stimulation phase typically lasts about 10 to 14 days, but it can vary based on your response to medication. During this time, you will have regular monitoring appointments, including blood tests and ultrasounds, to track follicle growth and adjust medication doses.

Travel consideration: You will need to be in Thailand for the entire stimulation phase, as monitoring is frequent. Plan to stay for at least two to three weeks from the start of stimulation to egg retrieval.

Step 3: Egg Retrieval

When your follicles are mature, you will receive a trigger injection to finalize egg maturation. Approximately 36 hours later, you will undergo egg retrieval, a minor surgical procedure performed under sedation. The procedure usually takes about 20-30 minutes, and you can go home the same day. After retrieval, you may experience mild cramping or bloating, but most people recover within a day or two.

Step 4: Fertilization and Embryo Culture

After retrieval, the eggs are fertilized with sperm in the laboratory. The resulting embryos are cultured for about five to six days, until they reach the blastocyst stage. During this time, the embryology team will monitor their development. Not all eggs will fertilize or develop into viable embryos, so the number of embryos available for testing can vary.

Step 5: Embryo Biopsy

Once embryos reach the blastocyst stage, a biopsy is performed. A few cells are removed from the outer layer of each embryo (trophectoderm) for genetic testing. This is a delicate procedure done by experienced embryologists. After biopsy, the embryos are frozen (vitrified) while awaiting test results.

Step 6: Genetic Testing

The biopsy samples are sent to a genetics laboratory for analysis. The type of PGT you are having will determine the testing method and time required:

• PGT-A (aneuploidy screening): Checks for chromosomal abnormalities. Results may take several days to a couple of weeks.
• PGT-M (monogenic disorders): Tests for specific genetic diseases. This often requires a prior workup and may take longer.
• PGT-SR (structural rearrangements): Detects chromosomal structural changes. Timeframe similar to PGT-A.

Your clinic will provide a specific timeframe for your test results. During this waiting period, you can return home if you wish, as the embryos are safely frozen.

Step 7: Embryo Transfer

Once your genetic testing results are available, you will discuss them with your doctor. A healthy embryo (or embryos) will be selected for transfer. The transfer is usually done in a subsequent cycle, after your uterine lining is prepared with medication. This preparation can take about two to four weeks. The transfer procedure itself is quick and painless, similar to a pap smear.

Travel consideration: You will need to be in Thailand for the transfer and the days leading up to it. Plan to stay for at least one to two weeks, depending on your clinic’s protocol.

Total Timeline: What to Expect

From the start of ovarian stimulation to embryo transfer, a PGT cycle can take approximately two to three months. This includes the stimulation phase (about two weeks), egg retrieval and embryo culture (about one week), genetic testing (one to several weeks), and a subsequent frozen embryo transfer cycle (about one month). However, this is a general estimate. Your timeline may be shorter or longer based on your individual circumstances and clinic scheduling.

Questions to Ask Your Clinic

To plan effectively, ask your clinic for a detailed timeline specific to your case. Consider asking:

• How long will my stimulation phase likely last based on my initial tests?
• What is the expected turnaround time for my genetic testing results?
• Will I need to be in Thailand for the entire cycle, or can I go home between stages?
• How soon after my test results can I schedule my embryo transfer?
• Are there any additional tests or consultations I need before starting?

Next Steps: Your Planning Checklist

• Consult with a fertility specialist to discuss your medical history and PGT options.
• Confirm your clinic’s specific timeline and any required pre-tests.
• Plan your travel and accommodation for the stimulation and retrieval phase, and later for the transfer.
• Arrange time off work and support for your stay in Thailand.
• Discuss financial aspects, including the cost of PGT and any additional lab fees.

Planning a PGT cycle in Thailand involves careful coordination, but with a clear understanding of the steps and a supportive clinic, you can navigate the process smoothly. Always rely on your medical team for personalized advice and timelines.

Frequently asked questions

How long does a PGT cycle take in Thailand?

A typical PGT cycle from ovarian stimulation to embryo transfer can take about two to three months. This includes the stimulation phase (about two weeks), egg retrieval and embryo culture (about one week), genetic testing (one to several weeks), and a subsequent frozen embryo transfer cycle (about one month). Your specific timeline may vary based on your clinic's protocols and your individual response to treatment.

Can I go home during the genetic testing wait?

Yes, in most cases you can return home after your embryos are biopsied and frozen. The genetic testing results may take several days to weeks, and you will not need to be in Thailand during that time. Once results are ready, you can plan to return for your embryo transfer.

What factors can affect the PGT cycle timeline?

Several factors can influence your timeline, including your ovarian response to stimulation, the number of embryos available for biopsy, the type of genetic testing required, and your clinic's scheduling. Additionally, if you need to undergo any preparatory procedures or if there are delays in test results, your timeline may be extended.

Do I need to stay in Thailand for the entire PGT cycle?

No, you typically do not need to stay for the entire cycle. You will need to be present for the stimulation and monitoring phase (about two weeks), egg retrieval, and later for the embryo transfer (about one to two weeks). The genetic testing wait can be done remotely, and you can travel home during that period.

Continue your research

• PGT in Thailand overview
• IVF in Thailand guide
• Treatment journey

Medical information notice: This article is educational and does not replace individual assessment, diagnosis, genetic counselling or treatment advice from a licensed clinician. Provider services, availability, fees and policies should be verified directly before booking.