Therapy for Depression (CBT and IPT): Evidence-Based Treatment

Cognitive Behavioural Therapy (CBT) and Interpersonal Therapy (IPT) are the two evidence-based first-line psychotherapies for depression recommended by NICE NG222 (2022), APA practice guidelines, and supported by Cochrane systematic reviews. Both demonstrate efficacy comparable to antidepressant medications for mild to moderate depression and provide skills and insights that often persist after treatment concludes. CBT works through identifying and modifying unhelpful thought patterns (the cognitive triad of negative views of self, world, and future), recognising cognitive distortions, and behavioural activation. IPT works through addressing relationships and life events through four problem areas: grief, role disputes, role transitions, and interpersonal deficits. This guide covers both therapies comprehensively: how each works, structure and time course, skills taught, evidence base, comparison between approaches, combination with medication, therapy variants for specific situations (CBT-SAD for seasonal depression, MBCT for relapse prevention, CBASP for chronic depression, IPT-A for adolescents), online therapy considerations, how to start and find qualified therapists, India-specific access pathways including NIMHANS, AIIMS, RCI-registered clinical psychologists, costs, online platforms, and cultural adaptation considerations.

Why therapy works for depression

Evidence-based psychotherapy works for depression through multiple mechanisms:

Cognitive mechanisms. Identifying and modifying unhelpful thought patterns that maintain depression; developing more balanced thinking; building meta-cognitive skills (thinking about thinking) that provide resilience against future depression.

Behavioural mechanisms. Increasing engagement with pleasurable and meaningful activities; counteracting depression-driven withdrawal and inactivity; building behavioural patterns that support mood.

Interpersonal mechanisms. Improving relationships; resolving role disputes; supporting life transitions; building social connections; reducing isolation.

Skill-building. Therapy teaches skills (cognitive restructuring, problem-solving, communication, emotion regulation) that continue providing benefit after treatment ends; this contrasts with medication where benefit typically requires continued use.

Therapeutic relationship. The supportive therapeutic alliance itself contributes to mood improvement; being heard, understood, and supported by a skilled professional has direct benefit.

Psychoeducation. Understanding depression as a treatable condition rather than personal failing reduces self-criticism; understanding the cognitive and behavioural patterns enables active management.

Activation effects. Regular therapy attendance itself provides structure, social contact, and outward orientation that counteract depression patterns.

Different therapies emphasise different mechanisms. CBT emphasises cognitive and behavioural; IPT emphasises interpersonal; both achieve similar overall outcomes but through different routes.

What CBT is

Cognitive Behavioural Therapy (CBT) is a structured evidence-based psychotherapy developed by Aaron Beck in the 1960s and 1970s based on the cognitive model of depression.

The cognitive triad. Beck proposed that depression involves three core negative beliefs:

Automatic thoughts. CBT identifies automatic thoughts (rapid, often unnoticed thoughts that pop into the mind in specific situations) that reflect underlying beliefs. These automatic thoughts influence emotional response and behaviour. By becoming aware of automatic thoughts, patients can examine and modify them.

Behaviours maintain depression. Depression typically involves withdrawal, reduced activity, avoidance, and reduced engagement with pleasure or mastery. These behavioural patterns maintain depression even after initial triggers have passed. CBT addresses behaviours alongside thoughts.

10 cognitive distortions in depression

CBT teaches patients to recognise common patterns of distorted thinking that maintain depression. Recognition is the first step toward modification.

Patients learn to identify which distortions they use most often, catch them when they occur, and develop more balanced alternative thoughts. The skill becomes automatic with practice and provides lasting benefit.

CBT skills taught

CBT teaches a range of practical skills that patients apply during therapy and continue using after treatment ends.

Thought records are a structured way to examine specific situations: identify the situation; note automatic thoughts; identify emotional response; recognise cognitive distortions used; develop balanced alternative thought; rate emotional change. Initially completed on paper or app; eventually internalised.

Behavioural activation involves scheduling and engaging in activities that provide pleasure or mastery (sense of achievement) even when motivation is low. Depression typically reduces activity, which worsens depression; behavioural activation reverses this cycle. Activities are graded from easy to more challenging.

Activity scheduling. Structured planning of daily activities ensures engagement with pleasure, mastery, and routine. Often includes rating activities for mood improvement.

Problem-solving skills. Structured approach to specific problems: define problem clearly; generate multiple possible solutions; evaluate options; implement chosen solution; evaluate outcome. Counteracts depression-related cognitive paralysis.

Graded task assignment. Breaking overwhelming tasks into smaller manageable steps; gradually increasing difficulty as confidence builds.

Behavioural experiments. Testing predictions against reality through structured experiments: "I predicted no one would talk to me at the event; what actually happened?" Counteracts catastrophising and fortune telling.

Mindfulness and acceptance skills (incorporated in newer CBT variants and Mindfulness-Based Cognitive Therapy): observing thoughts without identifying with them; distinguishing thoughts from facts; acceptance of difficult emotions.

Relapse prevention planning. Identifying personal warning signs of depression returning; developing specific response plans; planning for stressful periods; consolidating skills to use independently.

Communication skills for relationship aspects affecting mood. Assertiveness, expressing needs, setting boundaries.

Sleep hygiene and lifestyle integration with cognitive and behavioural work.

CBT structure and time course

CBT is highly structured compared with many other therapy approaches:

• Duration: typically 12-20 sessions of 50-60 minutes; weekly initially with gradual reduction in frequency
• Course: 3-5 months for typical course; some patients benefit from longer or booster sessions
• Session structure: agenda set at start; review of homework from previous session; work on current issues; new skill introduction; homework for next session; summary at end
• Therapeutic relationship: collaborative; therapist and patient work together as a team; patient role is active rather than passive
• Homework: central to CBT; between-session practice is where most learning occurs; without homework, CBT effectiveness substantially reduced
• Goals: set early; specific, measurable; reviewed throughout treatment
• Phases: assessment and engagement; active treatment; relapse prevention; termination

The structure means CBT is well-suited to time-limited insurance coverage and provides clear endpoint. Patients know what to expect throughout treatment.

CBT evidence base

CBT has substantial evidence base for depression treatment:

• NICE NG222 (2022) recommends CBT as first-line psychological treatment for moderate to severe depression alongside antidepressants
• Cochrane reviews show CBT effective for depression with response rates approximately 50-60 percent
• Multiple meta-analyses demonstrate CBT efficacy comparable to antidepressants for mild to moderate depression
• Effects often persist after treatment ends, providing longer-term protection than medication alone (which requires continued use)
• Effective across age groups including adolescents, adults, and elderly
• Effective across depression severity levels with combination preferred for severe
• Effective across cultures with appropriate cultural adaptation
• Effective when delivered via group, individual, online, or guided self-help formats with varying degrees

CBT is the most studied psychotherapy and has the largest evidence base for depression. The evidence base also extends to anxiety disorders, OCD, PTSD, eating disorders, and other conditions, making CBT skills broadly applicable across psychiatric conditions.

What IPT is

Interpersonal Therapy (IPT) is an evidence-based time-limited psychotherapy that focuses on relationships and life events. IPT was developed by Gerald Klerman and Myrna Weissman in the 1970s and 1980s based on observations that depression often occurs in interpersonal contexts.

Core IPT principles:

• Depression occurs in interpersonal context; understanding the context aids recovery
• Improving interpersonal functioning improves depression
• Focus is on present circumstances rather than past or deep personality
• Time-limited and goal-focused
• Practical and skill-building
• Therapist takes active rather than passive role

IPT does not assume that interpersonal problems caused depression (though they may have); rather it works on the assumption that improving interpersonal context aids recovery whether or not relationship issues caused the depression initially.

IPT four problem areas

IPT identifies one or two of four problem areas as the focus of treatment. Each has specific techniques.

Selection of problem area occurs early in IPT (usually sessions 1-3). One or two areas are selected based on what most relates to current depression. Treatment then focuses on the selected area through the middle phase.

IPT structure and time course

IPT structure is somewhat less rigid than CBT but still time-limited and goal-focused:

• Duration: typically 12-16 sessions of 50-60 minutes
• Course: 3-4 months for typical course
• Three phases: initial (1-3 sessions, assessment and problem area selection); middle (4-12 sessions, working on problem area); termination (last 2-4 sessions, consolidating gains, preparing for ending)
• Between-session work: less formal homework than CBT but expectation of trying new approaches between sessions
• Therapeutic relationship: active therapist role; supportive; collaborative
• Maintenance IPT: for recurrent depression, monthly maintenance sessions after acute treatment provide continued relapse protection

IPT evidence base

IPT has substantial evidence base for depression treatment:

• NICE NG222 (2022) recommends IPT alongside CBT as first-line evidence-based psychotherapy
• Cochrane reviews show IPT effective for depression with response rates comparable to CBT
• Particularly strong evidence for perinatal depression (pregnancy and postpartum)
• Strong evidence for grief-related depression
• Effective for adolescent depression (IPT-A adapted version)
• Effective for elderly depression with role transition issues
• Maintenance IPT (monthly sessions) effective for relapse prevention in recurrent depression
• Effective across cultures with appropriate adaptation

IPT has somewhat less total research volume than CBT but the evidence base is substantial and quality high.

CBT vs IPT comparison

Choice between CBT and IPT depends on:

• Nature of current depression (cognitive patterns prominent vs interpersonal context prominent)
• Patient preference (some prefer thought-focused work; others prefer relationship-focused work)
• Therapist availability (often the limiting factor in practice)
• Specific clinical situation (perinatal depression often favours IPT; cognitive pattern issues often favour CBT)
• Prior therapy experience (some patients have responded well to one approach previously)

Both are legitimate first-line choices. Some patients benefit from sequential treatment (one approach, then the other if needed) or from elements of both incorporated by a single therapist.

Therapy vs medication

For mild to moderate depression:

• Therapy and antidepressants produce broadly comparable response rates
• Either is legitimate first-line treatment
• Choice depends on patient preference, access, cost, and circumstances
• Therapy may provide longer-term protection after treatment ends
• Medication may produce faster initial response in some patients

For severe depression:

• Combination treatment (therapy plus medication) is superior to either alone
• Medication alone may produce faster initial response and is often essential for severe presentations
• Therapy alone is generally not sufficient for severe depression with psychotic features or severe suicide risk
• Hospitalisation may be needed for severe cases with safety concerns

For recurrent depression:

• Therapy provides longer-lasting relapse protection than medication alone after treatment concludes
• CBT relapse prevention skills carry forward
• MBCT (Mindfulness-Based Cognitive Therapy) specifically developed for relapse prevention
• Maintenance IPT (monthly sessions) provides ongoing protection
• Combination treatment particularly valuable for multiple recurrences

For specific situations:

• Pregnancy and breastfeeding: therapy preferred when feasible to avoid medication exposure (see postpartum depression guide)
• Medication intolerance or strong preference against medication: therapy alone reasonable
• Treatment-resistant depression: addition of therapy often beneficial
• Chronic depression (PDD/dysthymia): CBASP specifically (see PDD guide)
• Elderly: psychotherapy adapted for elderly often well-tolerated (see elderly depression guide)

Combination treatment

Combination treatment (therapy plus medication) often produces better outcomes than either monotherapy, particularly for moderate to severe depression.

Benefits of combination:

• Higher response and remission rates than monotherapy for moderate to severe depression
• Faster initial response than therapy alone
• Longer-term protection than medication alone after treatment ends
• Particularly effective for recurrent or chronic depression
• Addresses biological and psychological aspects simultaneously

Practical coordination:

• Psychiatrist or GP prescribes medication; clinical psychologist or qualified therapist provides therapy
• Communication between providers helps coordinate care
• Patient maintains role in coordinating their own treatment
• Clear roles and expectations established at start

Considerations:

• More time-intensive than either alone
• More costly than either alone
• Insurance coverage varies by jurisdiction and policy
• Coordination effort needed

Sequencing options:

• Start therapy alone, add medication if inadequate response after 6-8 weeks
• Start medication for immediate symptom relief, add therapy for longer-term skills
• Start both simultaneously for moderate to severe depression
• Many patients on combination treatment can taper medication after substantial therapy benefit while maintaining mood through therapy skills

For SSRI side effects context including discontinuation considerations, see our SSRI side effects guide.

Therapy variants

Several specific therapy variants address particular clinical situations:

CBT-SAD (CBT for Seasonal Affective Disorder). CBT specifically adapted for SAD includes behavioural activation focused on seasonal patterns, cognitive work on seasonal expectations, and integration with light therapy. See SAD guide.

MBCT (Mindfulness-Based Cognitive Therapy). Specifically developed for relapse prevention in recurrent depression. Combines mindfulness meditation with cognitive therapy elements. 8-week group programme typically. NICE recommended for recurrent depression maintenance.

CBASP (Cognitive Behavioural Analysis System of Psychotherapy). Specifically developed for chronic depression and persistent depressive disorder. Addresses interpersonal patterns and cognitive distortions specific to chronic depression. See PDD guide.

Behavioural Activation (BA). Simpler than full CBT, focused exclusively on behavioural change without cognitive component. Often as effective as full CBT for depression while being more accessible to deliver. Useful where full CBT not available.

IPT-A (Interpersonal Therapy for Adolescents). Adapted IPT for adolescent depression including focus on family relationships, peer relationships, and developmental tasks.

IPSRT (Interpersonal and Social Rhythm Therapy). Adapted IPT for bipolar disorder including focus on social rhythms (sleep, activity, meal timing) alongside interpersonal work. See bipolar disorder guide.

Problem-Solving Therapy. Brief structured approach focused on problem-solving skills. Effective for depression particularly with life problem triggers. Well-tolerated and effective in elderly.

Acceptance and Commitment Therapy (ACT). Newer therapy combining acceptance, mindfulness, and values-based action. Growing evidence base for depression.

Trauma-focused CBT. For depression with significant trauma history; integrates trauma processing with depression treatment.

Group therapy formats. CBT, IPT, and MBCT all available in group format; lower cost per patient; peer support benefits; less individualised work.

Online therapy

Online therapy has substantial and growing evidence base:

Forms of online support:

• Video-based therapy with qualified therapist (most evidence; closest to in-person)
• Phone-based therapy with qualified therapist
• Computerised CBT programmes (iCBT, CCBT) with limited therapist contact
• Structured CBT apps with no therapist contact
• Chat-based therapy (less evidence than video)
• Peer support and forums (supplement not replacement for therapy)

Evidence base. Multiple meta-analyses show video-based online CBT and IPT produce mood improvement comparable to in-person therapy for mild to moderate depression. Severe depression may benefit more from in-person treatment given clinical complexity. Computerised CBT programmes show smaller effects but provide accessible option.

Advantages of online therapy:

• Improved access for rural and underserved areas
• Reduced travel time and cost
• Potentially reduced stigma barrier
• Flexibility for working patients
• Potentially lower cost
• Particularly useful for patients with mobility limitations

Disadvantages:

• Technology access required
• Privacy at home may be limited (particularly in shared accommodation)
• Some non-verbal communication lost
• Not appropriate for severe depression with safety concerns
• Therapeutic relationship may build differently
• Crisis support coordination more complex

Practical considerations:

• Confirm therapist credentials and registration (RCI in India for clinical psychologists)
• Ensure private space for sessions
• Reliable internet connection
• Safety planning if depression severe
• Coordination with prescribing doctor if on medication
• Clear understanding of crisis support

How to start therapy

Starting therapy involves several steps:

1. Recognise the need. Persistent low mood or loss of interest for 2 weeks or longer with functional impairment warrants professional assessment. See MDD guide and diagnosis guide for context.

2. Initial professional consultation. GP, psychiatrist, or qualified mental health professional can assess depression and recommend treatment approach. Referral to therapy may come from primary care or psychiatric assessment.

3. Verify therapist credentials. Clinical psychologists should be RCI (Rehabilitation Council of India) registered in India. Ask about specific CBT or IPT training and supervision; ask about experience with depression specifically.

4. Initial therapy session expectations:

• Assessment of depression history and current symptoms
• Goal-setting discussion
• Explanation of therapy approach
• Discussion of practical arrangements (frequency, duration, cost, cancellation policies)
• Coordination with prescribing doctor if relevant
• Building initial therapeutic relationship

5. What to ask before committing:

• "Are you RCI-registered (for clinical psychologist)?"
• "What specific training in CBT (or IPT) do you have?"
• "What is your experience treating depression?"
• "What is the typical course of treatment you would recommend?"
• "What are session costs?"
• "How do you coordinate with my prescribing doctor if I am on medication?"
• "What is your cancellation policy?"
• "How long are sessions and how often initially?"

6. Building therapeutic alliance. Therapeutic relationship is essential to outcome. Initial sessions (typically 2-4) involve building trust and assessing fit. If relationship is not working after 3-4 sessions despite genuine engagement, raising this with the therapist or considering different therapist is appropriate.

7. Engagement requirements. Therapy effectiveness depends substantially on engagement: attending sessions consistently; completing between-session work; bringing relevant content; honest discussion; willingness to try new approaches. Therapy is active not passive.

India access context

Therapy access in India has specific patterns and pathways:

Qualified mental health professionals:

• Psychiatrists (MBBS plus MD or DNB Psychiatry) - medical doctors who can prescribe medication; some provide therapy though many focus on medication management
• Clinical Psychologists (MPhil Clinical Psychology) - specifically trained in psychotherapy including CBT and IPT; cannot prescribe medication; RCI registration required
• Counsellors (MA Counselling Psychology or similar) - provide counselling and some forms of therapy; specific CBT/IPT training varies
• Psychiatric Social Workers (MPhil Psychiatric Social Work) - some provide therapy

Access pathways:

• NIMHANS Bengaluru - extensive CBT and IPT training; clinical services
• AIIMS Delhi and other AIIMS - clinical psychology services
• Government district mental health programmes - varying availability of therapy
• Private clinical psychologists in major cities - most common access route for therapy
• Hospital-based psychology departments
• Private psychiatric services often have associated clinical psychologists
• Online therapy platforms with qualified Indian clinical psychologists
• University-based psychological services (often for students)
• NGO-provided counselling services in some regions

Cost considerations:

• Government hospital services subsidised
• Private clinical psychologists typically 1,500-3,500 INR per session in major Indian cities
• Specialist senior clinicians may charge higher
• Online platforms variable pricing (often 1,000-2,500 INR per session)
• Group therapy lower cost per session
• Some health insurance covers psychotherapy (verify with insurer; coverage growing under IRDAI mental health requirements)
• Employee assistance programmes through some employers cover therapy

Geographic access. Major metropolitan cities (Delhi, Mumbai, Bengaluru, Chennai, Hyderabad, Kolkata, Pune, Ahmedabad) have substantial clinical psychology presence. Tier 2 and Tier 3 cities have limited access; rural areas substantially limited. Online therapy expanding rural access.

Tele-MANAS (14416) provides 24x7 guidance and can direct to local services. National coverage with multiple language support.

Cultural considerations

Therapy effectiveness depends partly on cultural appropriateness:

Language matters substantially. Therapy conducted in patient's primary language generally more effective than second language. CBT and IPT both translated and adapted for Hindi, Tamil, Telugu, Bengali, Marathi, Kannada, Malayalam, Gujarati, and other major Indian languages. Verify language availability when selecting therapist.

Family dynamics consideration. Joint family contexts mean family members may be substantially involved in patient's life and decisions. IPT can address family role disputes and transitions directly. CBT can incorporate family awareness while focusing on individual change.

Religious and spiritual integration. For patients with strong religious or spiritual identity, integration of these perspectives can enhance therapy. Some Indian therapists incorporate yoga, meditation, prayer, or other practices alongside evidence-based therapy. The integration should not replace evidence-based techniques but can complement them.

Stigma reduction framing. Therapy framed as "learning skills" or "talking to a counsellor" sometimes more acceptable than "psychiatric treatment" for stigma-sensitive patients. Family education about therapy as legitimate treatment supports access.

Marriage and family considerations. Indian context may involve specific issues around marriage, dowry, in-law relationships, parental expectations, arranged marriage dynamics. Culturally competent therapists address these directly rather than ignoring or judging.

Gender considerations. Female patients may prefer female therapists for certain issues; cultural norms around male-female interaction relevant. Most major centres provide both gender options.

Caste and class considerations. Sometimes affect comfort with therapy; therapist matching for cultural background can support engagement.

Western therapy adaptations. CBT and IPT developed in Western contexts have been substantially adapted for Indian use; the underlying principles remain effective with cultural translation. Therapists trained at NIMHANS and other major Indian centres incorporate appropriate adaptations.

When therapy is not helping

If therapy is not producing benefit after adequate trial, several steps are appropriate:

• Substantial lack of progress after 6-8 weeks of consistent therapy
• Complete lack of any improvement after 12 weeks
• Worsening symptoms at any point during therapy
• Severe symptoms developing (suicidal thoughts, psychotic symptoms, severe functional collapse)
• Engagement problems despite genuine effort
• Therapeutic relationship not working despite attempts
• Practical issues (cost, access, time) preventing adequate engagement
• Coexisting condition undiagnosed (anxiety disorder, substance use, ADHD, bipolar disorder, trauma)
• Medical factors unrecognised (thyroid, vitamin deficiencies, sleep disorders)
• Life circumstances overwhelming (active abuse, severe financial crisis)

Steps when therapy is not helping:

• Discuss directly with therapist (most important first step)
• Review goals and approach together
• Consider whether engagement is adequate
• Consider whether right therapy type
• Assess for medical or coexisting psychiatric factors
• Consider addition of medication if not already on
• Consider switching therapy type (CBT to IPT or vice versa)
• Consider switching therapists
• Consider psychiatric reassessment for treatment-resistant depression
• Consider intensive outpatient or partial hospitalisation programmes for severe cases

Patient self-advocacy matters. If therapy is not helping, raising this with the therapist is legitimate and important; therapists expect and welcome these discussions.

A note from Dr. Boppana Sridhar

When patients ask me about therapy for depression, I usually emphasise three things. First, therapy is real treatment with substantial evidence base; it is not "just talking" or a lesser alternative to medication. CBT and IPT both have evidence comparable to antidepressants for mild to moderate depression and provide skills that often continue helping after treatment ends. Second, the choice between CBT and IPT depends on the patient and the depression; CBT works particularly well when cognitive patterns are prominent or when patient prefers structured skill-building; IPT works particularly well when relationships, recent loss, or life transitions are prominent. Many of my postpartum patients respond well to IPT; many of my elderly patients respond well to problem-solving therapy or behavioural activation; many of my young adult patients respond well to CBT. Third, the practical access barriers in India are real. RCI-registered clinical psychologists are still concentrated in major cities; trained CBT and IPT therapists remain limited compared with demand. Online therapy with qualified therapists has expanded access substantially and has good evidence for mild to moderate depression. For patients in Hyderabad and similar metros, finding qualified therapists is feasible though cost (typically 1,500-3,500 INR per session) is a real consideration. Tele-MANAS (14416) provides accessible guidance and can direct to local services. What I want to emphasise: depression is treatable; therapy is an evidence-based option; combination with medication is sometimes the best approach particularly for moderate to severe depression. The conversation about which approach should happen with your prescribing doctor and any therapist involved.

Frequently asked questions

Related reading on 247healthcare.blog

• Mental Health and Primary Care: hub
• Depression and Mood Disorders: Pillar 2
• What is Major Depressive Disorder?
• MDD Diagnosis Guide
• Persistent Depressive Disorder (Dysthymia)
• SSRI Side Effects Guide
• Postpartum Depression Signs
• Anxiety Disorders: Pillar 1

References

1. NICE NG222. Depression in adults: treatment and management (2022).
2. American Psychiatric Association. DSM-5 and practice guidelines.
3. WHO Depression Fact Sheet.
4. Cochrane Library systematic reviews on CBT and IPT for depression.
5. National Institute of Mental Health and Neuro Sciences (NIMHANS), Bengaluru.
6. Rehabilitation Council of India (RCI). Clinical psychologist registration.
7. APA Clinical Practice Guideline for the Treatment of Depression.
8. Mental Healthcare Act 2017, India.