Active Monitoring and Symptoms

The period of Watch and Wait is not a passive time; it is a period of active monitoring designed to ensure you only start treatment when the benefits outweigh the risks ^[1][2]. During this phase, you are a partner with your medical team, helping them track how the CLL is behaving in your unique body.

What Active Monitoring Looks Like

For most patients, active monitoring involves a physical exam and blood work every 3 to 6 months ^[3][4]. Your doctor is looking for two main things: changes in how you feel and changes in your blood counts.

How Will I Know It Is Time to Treat?

The International Workshop on Chronic Lymphocytic Leukemia (iwCLL) has established specific “triggers” for ending surveillance and starting treatment ^[5]. You do not need to have all of these; any one of them can be a signal that the disease is becoming active ^[5][1].

1. The “B Symptoms” (Constitutional Symptoms)

These are signs that the cancer is affecting your whole body’s metabolism ^[6].

• Unexplained Weight Loss: Losing more than 10% of your body weight in a 6-month period without dieting ^[5][6].
• Drenching Night Sweats: These are not just “hot flashes.” They are sweats so intense you must change your clothes or bed linens, occurring for more than a month ^[5][7].
• Severe Fatigue: This is defined as exhaustion so profound that it prevents you from working or performing your usual daily activities ^[5][6].
• Persistent Fever: A temperature above 100.4°F (38°C) for at least 2 weeks that isn’t caused by an infection ^[5].

CRITICAL SAFETY NOTE ON FEVERS: Because your immune system is compromised by the CLL, you cannot wait two weeks to see if a fever is a “B-symptom.” Any fever over 100.4°F must be reported to your medical team immediately. Infections are the biggest risk in CLL, and a fever is an infection until your doctor proves otherwise.

2. Physical Signs: Lumps and Organs

CLL cells often cluster in the lymph nodes or the spleen ^[8].

• Lymphadenopathy: This is the medical term for swollen lymph nodes. Treatment is often considered if nodes become “massive” (larger than 10 cm) or are growing very quickly ^[5][2].
• Splenomegaly: An enlarged spleen. You might feel “full” quickly when eating or feel a dull ache on your left side. A spleen that extends more than 6 cm below the ribs is a clinical trigger for treatment ^[5].

3. Laboratory Signs: The Numbers

Your blood work provides the most objective data for your doctor.

• Lymphocyte Doubling Time (LDT): If your Absolute Lymphocyte Count (ALC) doubles in less than 6 months, it suggests the disease is moving more aggressively ^[9][10]. Caveat: This is generally only considered a trigger if your starting lymphocyte count is already quite high (typically over 30,000/μL). If your count goes from 5,000 to 10,000, that doubling is not an immediate cause for panic.
• Marrow Failure: This is one of the most important triggers. It means the CLL cells are crowding out healthy cells in your bone marrow ^[5].
  • Anemia: A hemoglobin level below 10 g/dL ^[5][11].
  • Thrombocytopenia: A platelet count below 100,000/μL ^[5][11].

Remember, a rising white blood cell count alone is often not a reason to start treatment if you feel well and your other blood counts (red cells and platelets) are healthy ^[1][2]. The goal of Watch and Wait is to give you as many years as possible without the side effects of treatment, starting only when your body truly needs the help ^[1].